/* roulang page: index */
:root {
            --bg: #0D0F12;
            --panel: #14171C;
            --card: #191E24;
            --border: #2A323D;
            --primary: #C8FF2E;
            --secondary: #FFB547;
            --danger: #FF5C5C;
            --success: #2FD07C;
            --text: #F2F4F6;
            --text-secondary: #A7B0BB;
            --text-muted: #677280;
            --radius-card: 16px;
            --radius-btn: 10px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(200, 255, 46, 0.12);
            --container: 1240px;
            --gap: 24px;
            --section: 80px;
            --section-mobile: 48px;
            --transition: 0.22s ease;
            --font-sans: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
            --font-mono: "JetBrains Mono", "SF Mono", "Cascadia Code", "Roboto Mono", "Consolas", monospace;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--section) 0;
            position: relative;
        }
        .section-head {
            margin-bottom: 48px;
            max-width: 820px;
        }
        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .section-head .eyebrow::before {
            content: "";
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 12px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--text-secondary);
            white-space: nowrap;
        }
        .badge-up {
            color: var(--success);
            border-color: rgba(47, 208, 124, 0.3);
            background: rgba(47, 208, 124, 0.08);
        }
        .badge-down {
            color: var(--primary);
            border-color: rgba(200, 255, 46, 0.3);
            background: rgba(200, 255, 46, 0.08);
        }
        .badge-warn {
            color: var(--secondary);
            border-color: rgba(255, 181, 71, 0.3);
            background: rgba(255, 181, 71, 0.08);
        }
        .badge-danger {
            color: var(--danger);
            border-color: rgba(255, 92, 92, 0.3);
            background: rgba(255, 92, 92, 0.08);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #0D0F12;
            border: 1px solid var(--primary);
        }
        .btn-primary:hover {
            background: #d9ff5e;
            border-color: #d9ff5e;
            box-shadow: 0 8px 24px rgba(200, 255, 46, 0.25);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-outline {
            background: transparent;
            color: var(--text);
            border: 1px solid var(--border);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(200, 255, 46, 0.06);
        }
        .btn-outline:active {
            transform: translateY(1px);
        }
        .btn-sm {
            padding: 10px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
        }
        .arrow-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .arrow-icon svg {
            width: 14px;
            height: 14px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2.5;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .arrow-icon:hover {
            border-color: var(--primary);
            background: rgba(200, 255, 46, 0.08);
            color: var(--primary);
        }

        /* Header Navigation */
        .site-header {
            background: var(--panel);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
        }
        .top-nav-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 16px 0;
            min-height: 68px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .brand-icon svg {
            width: 20px;
            height: 20px;
            fill: #0D0F12;
        }
        .brand-name {
            font-size: 18px;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--text);
            white-space: nowrap;
        }
        .brand-name span {
            color: var(--primary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .main-nav a {
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .main-nav a:hover {
            color: var(--text);
            background: rgba(200, 255, 46, 0.06);
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: -1px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .location-selector {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 12px;
            border: 1px solid var(--border);
            border-radius: 8px;
            background: var(--card);
            cursor: pointer;
            transition: all var(--transition);
            font-size: 13px;
            color: var(--text-secondary);
            white-space: nowrap;
            position: relative;
        }
        .location-selector:hover {
            border-color: var(--primary);
            color: var(--text);
        }
        .location-selector svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
        }
        .location-dropdown {
            position: absolute;
            top: calc(100% + 8px);
            right: 0;
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 8px;
            min-width: 220px;
            display: none;
            box-shadow: var(--shadow-card);
            z-index: 1001;
        }
        .location-selector:hover .location-dropdown,
        .location-dropdown:hover {
            display: block;
        }
        .location-dropdown li {
            padding: 8px 12px;
            border-radius: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition);
            list-style: none;
        }
        .location-dropdown li:hover {
            background: rgba(200, 255, 46, 0.08);
            color: var(--primary);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border: 1px solid var(--border);
            border-radius: 8px;
            background: var(--card);
            cursor: pointer;
            transition: all var(--transition);
        }
        .hamburger span {
            width: 20px;
            height: 2px;
            background: var(--text-secondary);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .hamburger:hover {
            border-color: var(--primary);
        }
        .hamburger:hover span {
            background: var(--primary);
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 12px 0 16px;
            border-top: 1px solid var(--border);
        }
        .mobile-nav a {
            padding: 10px 14px;
            font-size: 15px;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all var(--transition);
        }
        .mobile-nav a:hover {
            background: rgba(200, 255, 46, 0.06);
            color: var(--primary);
        }
        .mobile-nav a.active {
            color: var(--primary);
            background: rgba(200, 255, 46, 0.08);
        }
        .mobile-nav .mobile-location {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 14px;
            font-size: 14px;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border);
            margin-bottom: 8px;
        }
        .mobile-nav .mobile-location svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            flex-shrink: 0;
        }

        /* Hero Section */
        .hero-section {
            padding: 72px 0 80px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
            min-height: 580px;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 15, 18, 0.92) 0%, rgba(13, 15, 18, 0.78) 40%, rgba(20, 23, 28, 0.85) 100%);
            z-index: 1;
        }
        .hero-section::after {
            content: "";
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(200, 255, 46, 0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(200, 255, 46, 0.05) 1px, transparent 1px);
            background-size: 48px 48px;
            z-index: 1;
            pointer-events: none;
        }
        .hero-decoration {
            position: absolute;
            top: 0;
            right: 0;
            width: 40%;
            height: 100%;
            z-index: 2;
            pointer-events: none;
            background: linear-gradient(120deg, transparent 30%, rgba(200, 255, 46, 0.04) 45%, transparent 60%);
            clip-path: polygon(25% 0, 100% 0, 100% 100%, 0% 100%);
        }
        .hero-container {
            position: relative;
            z-index: 3;
            width: 100%;
        }
        .hero-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-copy {
            max-width: 620px;
        }
        .hero-tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(200, 255, 46, 0.1);
            border: 1px solid rgba(200, 255, 46, 0.25);
            margin-bottom: 20px;
        }
        .hero-tagline::before {
            content: "";
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.4);
            }
        }
        .hero-title {
            font-size: 52px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text);
            margin-bottom: 20px;
            letter-spacing: -0.01em;
        }
        .hero-title .highlight {
            color: var(--primary);
        }
        .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 32px;
        }
        .hero-search {
            display: flex;
            gap: 0;
            max-width: 560px;
            border-radius: var(--radius-btn);
            overflow: hidden;
            border: 1px solid var(--border);
            background: var(--card);
            transition: all var(--transition);
        }
        .hero-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 1px var(--primary);
        }
        .hero-search input {
            flex: 1;
            padding: 14px 18px;
            background: transparent;
            border: none;
            outline: none;
            font-size: 15px;
            color: var(--text);
        }
        .hero-search input::placeholder {
            color: var(--text-muted);
        }
        .hero-search .btn {
            border-radius: 0;
            border: none;
            padding: 14px 22px;
        }
        .hero-quick-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 14px;
        }
        .hero-quick-links a {
            font-size: 13px;
            padding: 6px 12px;
            border-radius: 16px;
            background: rgba(200, 255, 46, 0.08);
            color: var(--text-secondary);
            border: 1px solid rgba(200, 255, 46, 0.2);
            transition: all var(--transition);
        }
        .hero-quick-links a:hover {
            background: rgba(200, 255, 46, 0.15);
            color: var(--primary);
            border-color: var(--primary);
        }
        .hero-metrics {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }
        .metric-card {
            background: rgba(20, 23, 28, 0.85);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px 16px;
            position: relative;
            overflow: hidden;
            transition: all var(--transition);
            backdrop-filter: blur(8px);
        }
        .metric-card:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }
        .metric-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--primary);
            opacity: 0.7;
        }
        .metric-card .metric-name {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .metric-card .metric-value {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.1;
            letter-spacing: -0.02em;
        }
        .metric-card .metric-unit {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
            margin-left: 4px;
        }
        .metric-card .metric-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-muted);
            margin-top: 8px;
        }
        .metric-card .metric-trend.up {
            color: var(--success);
        }
        .metric-card .metric-trend.down {
            color: var(--primary);
        }

        /* Service Matrix */
        .service-matrix {
            background: var(--panel);
        }
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 20px;
        }
        .matrix-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            position: relative;
            transition: all var(--transition);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            min-height: 200px;
        }
        .matrix-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }
        .matrix-item .item-num {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.06em;
            margin-bottom: 12px;
            opacity: 0.8;
        }
        .matrix-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.35;
        }
        .matrix-item .item-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .matrix-item .item-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 16px;
        }
        .matrix-item .item-tags span {
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 14px;
            background: rgba(200, 255, 46, 0.08);
            color: var(--text-secondary);
            border: 1px solid rgba(200, 255, 46, 0.15);
            font-weight: 500;
        }
        .matrix-item .item-link {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            transition: all var(--transition);
        }
        .matrix-item .item-link:hover {
            color: var(--primary);
        }
        .matrix-item .item-image {
            width: 100%;
            height: 140px;
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 16px;
            background: var(--bg);
            flex-shrink: 0;
        }
        .matrix-item .item-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }
        .matrix-item:hover .item-image img {
            transform: scale(1.04);
        }
        .matrix-span-4 {
            grid-column: span 4;
        }
        .matrix-span-6 {
            grid-column: span 6;
        }
        .matrix-span-12 {
            grid-column: span 12;
        }
        .matrix-highlight {
            border-color: rgba(200, 255, 46, 0.4);
            background: linear-gradient(135deg, rgba(200, 255, 46, 0.05) 0%, var(--card) 60%);
        }
        .matrix-highlight .item-tags span {
            background: rgba(200, 255, 46, 0.15);
            color: var(--primary);
            border-color: rgba(200, 255, 46, 0.3);
        }

        /* Result Comparison */
        .compare-section {
            background: var(--bg);
        }
        .compare-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .compare-panel {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: all var(--transition);
        }
        .compare-panel:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .compare-panel h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text);
        }
        .compare-bar-row {
            margin-bottom: 20px;
        }
        .compare-bar-label {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            font-weight: 500;
        }
        .compare-bar-label .diff-badge {
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: 10px;
            background: rgba(200, 255, 46, 0.15);
            color: var(--primary);
        }
        .compare-bar-label .diff-badge.warn {
            background: rgba(255, 181, 71, 0.15);
            color: var(--secondary);
        }
        .compare-bar {
            display: flex;
            gap: 4px;
            align-items: stretch;
            height: 32px;
            border-radius: 6px;
            overflow: hidden;
            background: var(--bg);
            border: 1px solid var(--border);
        }
        .compare-bar .bar-segment {
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 700;
            color: #0D0F12;
            transition: all var(--transition);
        }
        .compare-bar .bar-before {
            background: var(--text-muted);
            color: var(--text);
        }
        .compare-bar .bar-after {
            background: var(--primary);
            color: #0D0F12;
        }
        .compare-bar .bar-mid {
            background: var(--secondary);
            color: #0D0F12;
        }
        .compare-scale {
            display: flex;
            justify-content: space-between;
            font-size: 11px;
            color: var(--text-muted);
            margin-top: 4px;
            font-family: var(--font-mono);
        }

        /* News Section */
        .news-section {
            background: var(--panel);
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 32px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            display: flex;
            gap: 16px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item:hover {
            padding-left: 8px;
        }
        .news-item .news-index {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            color: var(--text-muted);
            width: 32px;
            flex-shrink: 0;
            padding-top: 2px;
        }
        .news-item .news-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.5;
            transition: color var(--transition);
        }
        .news-item:hover .news-content h4 {
            color: var(--primary);
        }
        .news-item .news-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .news-item .news-meta {
            display: flex;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 6px;
        }
        .news-featured {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            align-self: start;
        }
        .news-featured .featured-image {
            height: 160px;
            overflow: hidden;
        }
        .news-featured .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-featured .featured-body {
            padding: 20px;
        }
        .news-featured .featured-body .badge {
            margin-bottom: 10px;
        }
        .news-featured .featured-body h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .news-featured .featured-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Testimonials Section */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .testimonial-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all var(--transition);
        }
        .testimonial-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .testimonial-card .quote-icon {
            font-size: 32px;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 12px;
            opacity: 0.6;
        }
        .testimonial-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .testimonial-card .author-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: #0D0F12;
            flex-shrink: 0;
        }
        .testimonial-card .author-info strong {
            display: block;
            font-size: 14px;
            color: var(--text);
            font-weight: 600;
        }
        .testimonial-card .author-info span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* Brand Intro */
        .brand-intro-section {
            background: var(--bg);
        }
        .brand-intro-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 36px;
            align-items: center;
        }
        .brand-intro-card .intro-image {
            height: 240px;
            border-radius: 10px;
            overflow: hidden;
            background: var(--bg);
        }
        .brand-intro-card .intro-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .brand-intro-card .intro-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }
        .brand-intro-card .intro-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .brand-intro-card .intro-text p:last-child {
            margin-bottom: 0;
        }

        /* Steps + Assurance */
        .steps-section {
            background: var(--panel);
        }
        .steps-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }
        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .step-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .step-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(200, 255, 46, 0.1);
            border: 1px solid rgba(200, 255, 46, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
        }
        .step-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .assurance-icons {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }
        .assurance-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: all var(--transition);
        }
        .assurance-item:hover {
            border-color: var(--primary);
        }
        .assurance-item .assurance-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(200, 255, 46, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 18px;
        }
        .assurance-item strong {
            display: block;
            font-size: 13px;
            color: var(--text);
            font-weight: 600;
            line-height: 1.4;
        }
        .assurance-item span {
            font-size: 11px;
            color: var(--text-muted);
            line-height: 1.4;
        }

        /* Partners / Capabilities */
        .partners-section {
            background: var(--bg);
        }
        .partners-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .partner-capability {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 18px;
            transition: all var(--transition);
            text-align: left;
        }
        .partner-capability:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .partner-capability .capability-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .partner-capability .capability-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* FAQ Section */
        .faq-section {
            background: var(--panel);
        }
        .faq-layout {
            display: grid;
            grid-template-columns: 300px 1fr;
            gap: 40px;
            align-items: start;
        }
        .faq-side h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }
        .faq-side p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .faq-groups {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .faq-group-tag {
            font-size: 13px;
            color: var(--text-secondary);
            padding: 8px 12px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: var(--card);
            transition: all var(--transition);
            cursor: pointer;
        }
        .faq-group-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--text-muted);
        }
        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            transition: all var(--transition);
            gap: 12px;
            text-align: left;
            width: 100%;
        }
        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition);
            font-size: 16px;
            color: var(--text-secondary);
        }
        .faq-item.active .faq-question .faq-icon {
            border-color: var(--primary);
            color: var(--primary);
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 20px;
            transition: all 0.3s ease;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }

        /* Form Section */
        .form-section {
            background: var(--bg);
            position: relative;
        }
        .form-panel {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 40px;
            box-shadow: var(--shadow-card);
        }
        .form-info h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
        }
        .form-info p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .form-detail-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .form-detail-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .form-detail-list li .detail-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
        }
        .contact-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .form-field {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .form-field label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
        }
        .form-field input,
        .form-field select,
        .form-field textarea {
            padding: 12px 16px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border);
            background: var(--bg);
            color: var(--text);
            font-size: 14px;
            transition: all var(--transition);
            outline: none;
            width: 100%;
        }
        .form-field input:focus,
        .form-field select:focus,
        .form-field textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 1px var(--primary);
        }
        .form-field input::placeholder,
        .form-field textarea::placeholder {
            color: var(--text-muted);
        }
        .form-field textarea {
            resize: vertical;
            min-height: 80px;
        }
        .form-field .error-msg {
            font-size: 12px;
            color: var(--danger);
            display: none;
        }
        .form-field.has-error input,
        .form-field.has-error select,
        .form-field.has-error textarea {
            border-color: var(--danger);
        }
        .form-field.has-error .error-msg {
            display: block;
        }
        .form-submit {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 8px;
        }
        .form-submit .btn {
            min-width: 160px;
        }
        .form-submit .form-note {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* Footer */
        .site-footer {
            background: var(--panel);
            border-top: 1px solid var(--border);
            padding: 56px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer-brand .brand {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul a {
            font-size: 13px;
            color: var(--text-muted);
            transition: all var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--primary);
        }
        .footer-location {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 10px;
        }
        .footer-location svg {
            width: 14px;
            height: 14px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-bottom .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-bottom .footer-links a {
            color: var(--text-muted);
            transition: all var(--transition);
            font-size: 12px;
        }
        .footer-bottom .footer-links a:hover {
            color: var(--primary);
        }
        .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-beian span {
            white-space: nowrap;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 2px;
            }
            .main-nav a {
                padding: 8px 10px;
                font-size: 13px;
            }
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-title {
                font-size: 40px;
            }
            .hero-metrics {
                grid-template-columns: repeat(3, 1fr);
            }
            .matrix-grid {
                gap: 16px;
            }
            .matrix-span-4 {
                grid-column: span 6;
            }
            .matrix-span-6 {
                grid-column: span 12;
            }
            .compare-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .news-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .brand-intro-card {
                grid-template-columns: 1fr;
                padding: 24px;
            }
            .steps-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .partners-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .form-panel {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 28px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section {
                padding: 60px 0;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-nav {
                display: none;
            }
            .mobile-nav.open {
                display: flex;
            }
            .nav-right .location-selector {
                font-size: 12px;
                padding: 6px 10px;
            }
            .top-nav-bar {
                padding: 12px 0;
                min-height: 56px;
            }
            .brand-name {
                font-size: 16px;
            }
            .hero-section {
                padding: 48px 0 56px;
                min-height: auto;
            }
            .hero-title {
                font-size: 30px;
                letter-spacing: 0;
            }
            .hero-desc {
                font-size: 14px;
            }
            .hero-metrics {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .metric-card .metric-value {
                font-size: 24px;
            }
            .matrix-span-4,
            .matrix-span-6,
            .matrix-span-12 {
                grid-column: span 12;
            }
            .matrix-item {
                min-height: auto;
                padding: 18px;
            }
            .compare-grid {
                grid-template-columns: 1fr;
            }
            .compare-panel {
                padding: 20px;
            }
            .testimonial-card {
                padding: 18px;
            }
            .partners-grid {
                grid-template-columns: 1fr;
            }
            .assurance-icons {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 48px 0;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .section-head {
                margin-bottom: 32px;
            }
            .hero-search {
                flex-direction: column;
                border-radius: var(--radius-btn);
            }
            .hero-search .btn {
                border-radius: var(--radius-btn);
                padding: 12px;
            }
            .hero-quick-links {
                gap: 6px;
            }
            .hero-quick-links a {
                font-size: 12px;
                padding: 5px 10px;
            }
            .brand-intro-card .intro-image {
                height: 160px;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 26px;
            }
            .hero-metrics {
                grid-template-columns: 1fr;
            }
            .section {
                padding: 40px 0;
            }
            .section-head h2 {
                font-size: 20px;
            }
            .btn-lg {
                padding: 12px 20px;
                font-size: 14px;
            }
            .top-nav-bar {
                gap: 8px;
            }
            .nav-right .btn {
                padding: 8px 14px;
                font-size: 13px;
            }
            .location-selector {
                font-size: 11px;
                padding: 5px 8px;
                gap: 4px;
            }
            .location-dropdown {
                min-width: 160px;
                right: -40px;
            }
        }

/* roulang page: category2 */
:root {
            --bg: #0D0F12;
            --panel: #14171C;
            --card: #191E24;
            --border: #2A323D;
            --primary: #C8FF2E;
            --secondary: #FFB547;
            --danger: #FF5C5C;
            --success: #2FD07C;
            --text: #F2F4F6;
            --text-secondary: #A7B0BB;
            --text-muted: #677280;
            --radius-card: 16px;
            --radius-btn: 10px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(200, 255, 46, 0.12);
            --container: 1240px;
            --gap: 24px;
            --section: 80px;
            --section-mobile: 48px;
            --transition: 0.22s ease;
            --font-sans: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
            --font-mono: "JetBrains Mono", "SF Mono", "Cascadia Code", "Roboto Mono", "Consolas", monospace;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--section) 0;
            position: relative;
        }
        .section-head {
            margin-bottom: 48px;
            max-width: 820px;
        }
        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .section-head .eyebrow::before {
            content: "";
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 12px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--text-secondary);
            white-space: nowrap;
        }
        .badge-up {
            color: var(--success);
            border-color: rgba(47, 208, 124, 0.3);
            background: rgba(47, 208, 124, 0.08);
        }
        .badge-down {
            color: var(--primary);
            border-color: rgba(200, 255, 46, 0.3);
            background: rgba(200, 255, 46, 0.08);
        }
        .badge-warn {
            color: var(--secondary);
            border-color: rgba(255, 181, 71, 0.3);
            background: rgba(255, 181, 71, 0.08);
        }
        .badge-danger {
            color: var(--danger);
            border-color: rgba(255, 92, 92, 0.3);
            background: rgba(255, 92, 92, 0.08);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #0D0F12;
            border: 1px solid var(--primary);
        }
        .btn-primary:hover {
            background: #d9ff5e;
            border-color: #d9ff5e;
            box-shadow: 0 8px 24px rgba(200, 255, 46, 0.25);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-outline {
            background: transparent;
            color: var(--text);
            border: 1px solid var(--border);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(200, 255, 46, 0.06);
        }
        .btn-outline:active {
            transform: translateY(1px);
        }
        .btn-sm {
            padding: 10px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
        }
        .arrow-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .arrow-icon svg {
            width: 14px;
            height: 14px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .card:hover .arrow-icon {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(200, 255, 46, 0.08);
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13, 15, 18, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 14px 0;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(200, 255, 46, 0.1);
            border: 1px solid rgba(200, 255, 46, 0.3);
        }
        .brand-icon svg {
            width: 20px;
            height: 20px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .brand-name {
            font-size: 18px;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--text);
        }
        .brand-name span {
            color: var(--primary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .main-nav a {
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }
        .main-nav a:hover {
            color: var(--text);
            background: rgba(255, 255, 255, 0.04);
        }
        .main-nav a.active {
            color: var(--primary);
        }
        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .header-location {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 14px;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: var(--card);
            font-size: 14px;
            color: var(--text-secondary);
            white-space: nowrap;
            cursor: pointer;
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .header-location svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
        }
        .header-location:hover {
            border-color: var(--primary);
            color: var(--text);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: var(--card);
            transition: all var(--transition);
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .hamburger:hover {
            border-color: var(--primary);
        }
        .mobile-nav {
            display: none;
            padding: 16px 0;
            border-top: 1px solid var(--border);
            flex-direction: column;
            gap: 4px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .mobile-nav.open {
            max-height: 500px;
        }
        .mobile-nav a {
            padding: 10px 16px;
            border-radius: 8px;
            color: var(--text-secondary);
            font-size: 15px;
            transition: all var(--transition);
        }
        .mobile-nav a:hover {
            color: var(--text);
            background: rgba(255, 255, 255, 0.04);
        }
        .mobile-nav a.active {
            color: var(--primary);
            background: rgba(200, 255, 46, 0.06);
        }

        /* Breadcrumb */
        .breadcrumb {
            padding: 20px 0 0;
            font-size: 14px;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            margin: 0 8px;
            color: var(--text-muted);
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* Classification Hero */
        .cat-hero {
            padding: 48px 0 56px;
            position: relative;
            overflow: hidden;
        }
        .cat-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
        }
        .cat-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13,15,18,0.7) 0%, var(--bg) 100%);
        }
        .cat-hero .container {
            position: relative;
            z-index: 1;
        }
        .cat-hero-grid {
            display: grid;
            grid-template-columns: 1fr 380px;
            gap: 48px;
            align-items: center;
        }
        .cat-hero-left h1 {
            font-size: 48px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
        }
        .cat-hero-left h1 .highlight {
            color: var(--primary);
        }
        .cat-hero-left .lead {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 28px;
        }
        .cat-hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cat-hero-stat {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .cat-hero-stat .value {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
        }
        .cat-hero-stat .label {
            font-size: 13px;
            color: var(--text-muted);
        }
        .cat-hero-visual {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }
        .cat-hero-visual::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .cat-hero-visual h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text);
        }
        .score-meter {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .score-row {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .score-row .env-name {
            font-size: 14px;
            color: var(--text-secondary);
            width: 80px;
            flex-shrink: 0;
        }
        .score-bar-wrap {
            flex: 1;
            height: 8px;
            background: var(--bg);
            border-radius: 4px;
            overflow: hidden;
            position: relative;
        }
        .score-bar {
            height: 100%;
            border-radius: 4px;
            transition: width 0.6s ease;
        }
        .score-bar.high {
            background: var(--success);
            width: 92%;
        }
        .score-bar.medium {
            background: var(--secondary);
            width: 78%;
        }
        .score-bar.pending {
            background: var(--primary);
            width: 65%;
        }
        .score-row .score-num {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            width: 40px;
            text-align: right;
            flex-shrink: 0;
        }

        /* Horizontal Scroll Track */
        .scroll-track-section {
            padding: 0 0 var(--section) 0;
        }
        .scroll-track-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }
        .scroll-track-header .section-head {
            margin-bottom: 0;
        }
        .scroll-track-controls {
            display: flex;
            gap: 8px;
            flex-shrink: 0;
        }
        .scroll-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--text-secondary);
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .scroll-btn svg {
            width: 18px;
            height: 18px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .scroll-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(200, 255, 46, 0.06);
        }
        .scroll-track {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            padding-bottom: 12px;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
            -webkit-overflow-scrolling: touch;
        }
        .scroll-track::-webkit-scrollbar {
            height: 6px;
        }
        .scroll-track::-webkit-scrollbar-track {
            background: transparent;
        }
        .scroll-track::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }
        .env-card {
            min-width: 300px;
            flex: 0 0 300px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            scroll-snap-align: start;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .env-card:hover {
            border-color: rgba(200, 255, 46, 0.4);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }
        .env-card .env-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
        }
        .env-card .env-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(200, 255, 46, 0.08);
            border: 1px solid rgba(200, 255, 46, 0.2);
            font-size: 20px;
        }
        .env-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }
        .env-card .env-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            min-height: 48px;
        }
        .env-card .env-metrics {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .env-card .env-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .score-scale {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .score-scale-row {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .score-scale-row .label {
            font-size: 13px;
            color: var(--text-muted);
            width: 100px;
            flex-shrink: 0;
        }
        .score-scale-row .scale-bar {
            flex: 1;
            height: 6px;
            border-radius: 3px;
            background: var(--bg);
            position: relative;
            overflow: hidden;
        }
        .score-scale-row .scale-bar .fill {
            height: 100%;
            border-radius: 3px;
            transition: width 0.5s ease;
        }
        .score-scale-row .scale-val {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            width: 48px;
            text-align: right;
            flex-shrink: 0;
        }

        /* Grid Cards */
        .grid-section {
            padding: var(--section) 0;
            background: var(--panel);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .grid-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .grid-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: all var(--transition);
            position: relative;
        }
        .grid-card:hover {
            border-color: rgba(200, 255, 46, 0.35);
            box-shadow: var(--shadow-glow);
        }
        .grid-card .card-num {
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--primary);
            margin-bottom: 12px;
            font-weight: 600;
        }
        .grid-card h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
        }
        .grid-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .grid-card .card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        /* CTA Section */
        .cta-section {
            padding: var(--section) 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }
        .cta-panel {
            position: relative;
            z-index: 1;
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            box-shadow: var(--shadow-card);
        }
        .cta-left h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text);
        }
        .cta-left p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .cta-left .cta-points {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .cta-left .cta-point {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            color: var(--text-secondary);
        }
        .cta-left .cta-point svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
        }
        .cta-right {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 16px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 32px;
        }
        .cta-right .cta-icon {
            font-size: 48px;
        }
        .cta-right h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text);
        }
        .cta-right p {
            font-size: 15px;
            color: var(--text-secondary);
            text-align: center;
        }

        /* Footer */
        .site-footer {
            background: var(--panel);
            border-top: 1px solid var(--border);
            padding: 56px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .brand {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-location {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 10px;
        }
        .footer-location svg {
            width: 14px;
            height: 14px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-bottom .copyright {
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom .footer-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom .footer-links a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-bottom .footer-links a:hover {
            color: var(--primary);
        }
        .footer-bottom .footer-links .separator {
            color: var(--text-muted);
            font-size: 13px;
        }
        .footer-icp {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 2px;
            }
            .main-nav a {
                padding: 6px 10px;
                font-size: 13px;
            }
            .cat-hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cat-hero-left h1 {
                font-size: 36px;
            }
            .cta-panel {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 32px;
            }
            .grid-cards {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .header-actions .btn-outline {
                display: none;
            }
            .header-location {
                padding: 6px 10px;
                font-size: 12px;
            }
            .header-location span {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .main-nav {
                display: none;
            }
            .mobile-nav {
                display: flex;
            }
            .section {
                padding: var(--section-mobile) 0;
            }
            .cat-hero {
                padding: 28px 0 40px;
            }
            .cat-hero-left h1 {
                font-size: 28px;
            }
            .cat-hero-left .lead {
                font-size: 15px;
            }
            .cat-hero-stat .value {
                font-size: 22px;
            }
            .cat-hero-visual {
                padding: 20px;
            }
            .grid-cards {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .env-card {
                min-width: 260px;
                flex: 0 0 260px;
                padding: 18px;
            }
            .scroll-track-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-panel {
                padding: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .breadcrumb {
                font-size: 12px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .cat-hero-left h1 {
                font-size: 24px;
            }
            .cat-hero-stats {
                gap: 16px;
            }
            .cat-hero-stat .value {
                font-size: 18px;
            }
            .cat-hero-stat .label {
                font-size: 11px;
            }
            .score-row .env-name {
                width: 56px;
                font-size: 12px;
            }
            .env-card {
                min-width: 240px;
                flex: 0 0 240px;
            }
            .cta-right {
                padding: 20px;
            }
            .brand-name {
                font-size: 16px;
            }
            .btn {
                padding: 10px 16px;
                font-size: 13px;
            }
        }

/* roulang page: category1 */
:root {
  --bg: #0D0F12;
  --panel: #14171C;
  --card: #191E24;
  --border: #2A323D;
  --primary: #C8FF2E;
  --secondary: #FFB547;
  --danger: #FF5C5C;
  --success: #2FD07C;
  --text: #F2F4F6;
  --text-secondary: #A7B0BB;
  --text-muted: #677280;
  --radius-card: 16px;
  --radius-btn: 10px;
  --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 24px rgba(200, 255, 46, 0.12);
  --container: 1240px;
  --gap: 24px;
  --section: 80px;
  --section-mobile: 48px;
  --transition: 0.22s ease;
  --font-sans: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Cascadia Code", "Roboto Mono", "Consolas", monospace;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--primary);
}
img {
  max-width: 100%;
  display: block;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}
button {
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: var(--section) 0;
  position: relative;
}
.section-head {
  margin-bottom: 48px;
  max-width: 820px;
}
.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-head .eyebrow::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.section-head h2 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 12px;
}
.section-head p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 720px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text-secondary);
  white-space: nowrap;
}
.badge-up { color: var(--success); border-color: rgba(47, 208, 124, 0.3); background: rgba(47, 208, 124, 0.08); }
.badge-down { color: var(--primary); border-color: rgba(200, 255, 46, 0.3); background: rgba(200, 255, 46, 0.08); }
.badge-warn { color: var(--secondary); border-color: rgba(255, 181, 71, 0.3); background: rgba(255, 181, 71, 0.08); }
.badge-danger { color: var(--danger); border-color: rgba(255, 92, 92, 0.3); background: rgba(255, 92, 92, 0.08); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1.4;
}
.btn-primary {
  background: var(--primary);
  color: #0D0F12;
  border: 1px solid var(--primary);
}
.btn-primary:hover {
  background: #d9ff5e;
  border-color: #d9ff5e;
  box-shadow: 0 8px 24px rgba(200, 255, 46, 0.25);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(1px); box-shadow: none; }
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(200, 255, 46, 0.06);
}
.btn-outline:active { transform: translateY(1px); }
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn-lg { padding: 14px 30px; font-size: 16px; }
.arrow-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  transition: all var(--transition);
  flex-shrink: 0;
}
.arrow-icon svg { width: 14px; height: 14px; }
a:hover .arrow-icon { border-color: var(--primary); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 15, 18, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.01em;
  flex-shrink: 0;
}
.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--card);
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.brand-icon svg { width: 20px; height: 20px; fill: var(--primary); }
.brand-name { color: var(--text); }
.brand-name span { color: var(--primary); }
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.location-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--border);
  background: var(--panel);
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.location-trigger:hover { border-color: var(--primary); color: var(--primary); }
.location-trigger svg { width: 16px; height: 16px; fill: currentColor; flex-shrink: 0; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  padding: 8px 0 14px;
}
.main-nav a {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
  position: relative;
  white-space: nowrap;
}
.main-nav a:hover { color: var(--text); background: rgba(200, 255, 46, 0.06); }
.main-nav a.active {
  color: var(--primary);
  background: rgba(200, 255, 46, 0.08);
}
.main-nav a.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
}
.mobile-toggle svg { width: 20px; height: 20px; fill: var(--text); }

/* ===== Breadcrumb ===== */
.breadcrumb-bar {
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--border); }
.breadcrumb .current { color: var(--primary); font-weight: 600; }

/* ===== Category Hero ===== */
.category-hero {
  position: relative;
  padding: 72px 0 80px;
  background-image: linear-gradient(rgba(13, 15, 18, 0.88), rgba(13, 15, 18, 0.94)), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.category-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 40%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(200, 255, 46, 0.04));
  pointer-events: none;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-copy h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}
.hero-copy h1 .highlight { color: var(--primary); }
.hero-sub {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 580px;
  margin-bottom: 24px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.hero-stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 20px 22px;
  position: relative;
  transition: all var(--transition);
}
.hero-stat:hover { border-color: rgba(200, 255, 46, 0.4); box-shadow: var(--shadow-glow); }
.hero-stat .stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}
.hero-stat .stat-value {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 6px;
}
.hero-stat .stat-extra {
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ===== Filter Bar ===== */
.filter-bar {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 20px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  margin-bottom: 32px;
}
.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.filter-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-right: 4px;
  white-space: nowrap;
}
.filter-btn {
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.filter-btn:hover { border-color: var(--text-muted); color: var(--text); }
.filter-btn.active {
  border-color: var(--primary);
  color: #0D0F12;
  background: var(--primary);
  font-weight: 600;
}
.filter-divider {
  width: 1px;
  height: 32px;
  background: var(--border);
  flex-shrink: 0;
}

/* ===== Param Grid ===== */
.param-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.param-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.param-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--primary);
  opacity: 0;
  transition: opacity var(--transition);
}
.param-card:hover {
  border-color: rgba(200, 255, 46, 0.4);
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}
.param-card:hover::before { opacity: 1; }
.param-card.hidden { display: none; }
.param-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 12px;
}
.param-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
}
.param-card-type {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 12px;
  letter-spacing: 0.04em;
  white-space: nowrap;
  flex-shrink: 0;
}
.param-card-type.type-basic { background: rgba(200, 255, 46, 0.1); color: var(--primary); border: 1px solid rgba(200, 255, 46, 0.2); }
.param-card-type.type-advanced { background: rgba(255, 181, 71, 0.1); color: var(--secondary); border: 1px solid rgba(255, 181, 71, 0.2); }
.param-card-type.type-enterprise { background: rgba(47, 208, 124, 0.1); color: var(--success); border: 1px solid rgba(47, 208, 124, 0.2); }
.param-card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}
.param-list {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
}
.param-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid rgba(42, 50, 61, 0.6);
  font-size: 13px;
  color: var(--text-secondary);
}
.param-list li:last-child { border-bottom: none; }
.param-list .param-name { color: var(--text-muted); }
.param-list .param-value {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text);
  font-weight: 600;
}
.param-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.param-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.param-card-link {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition);
  white-space: nowrap;
}
.param-card-link:hover { color: #d9ff5e; }
.param-card-link svg { width: 14px; height: 14px; fill: currentColor; }

/* ===== Compare Section ===== */
.compare-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 32px;
}
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.compare-col { position: relative; }
.compare-col h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}
.compare-col h3 .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot-before { background: var(--text-muted); }
.dot-after { background: var(--primary); }
.compare-item {
  margin-bottom: 20px;
}
.compare-item .compare-label {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.compare-item .compare-label .compare-diff { color: var(--primary); font-weight: 600; }
.compare-bar {
  height: 10px;
  border-radius: 5px;
  background: rgba(42, 50, 61, 0.6);
  overflow: hidden;
  position: relative;
}
.compare-bar .fill {
  height: 100%;
  border-radius: 5px;
  transition: width 0.6s ease;
}
.fill-before { background: var(--text-muted); }
.fill-after { background: var(--primary); }

/* ===== Steps ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.step-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px 20px;
  position: relative;
  transition: all var(--transition);
}
.step-card:hover { border-color: rgba(200, 255, 46, 0.35); transform: translateY(-2px); }
.step-number {
  font-family: var(--font-mono);
  font-size: 40px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 14px;
  opacity: 0.9;
}
.step-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.step-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== FAQ ===== */
.faq-wrap {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 40px;
  align-items: start;
}
.faq-left .section-head { margin-bottom: 0; }
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item:hover { border-color: rgba(200, 255, 46, 0.3); }
.faq-item.open { border-color: var(--primary); }
.faq-question {
  width: 100%;
  text-align: left;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: all var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-question .faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition);
  font-size: 16px;
  line-height: 1;
}
.faq-item.open .faq-question .faq-icon { border-color: var(--primary); color: var(--primary); transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  padding: 0 20px;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 20px 18px;
}

/* ===== CTA Form ===== */
.cta-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  align-items: start;
}
.cta-left h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
}
.cta-left p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}
.cta-info-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.cta-info-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 6px 0;
}
.cta-info-list svg { width: 16px; height: 16px; fill: var(--primary); flex-shrink: 0; }
.cta-form { display: flex; flex-direction: column; gap: 16px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 600;
}
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  padding: 12px 16px;
  font-size: 14px;
  color: var(--text);
  transition: all var(--transition);
  width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(200, 255, 46, 0.08);
}
.form-group textarea { min-height: 90px; resize: vertical; }
.form-group .error-msg {
  font-size: 12px;
  color: var(--danger);
  display: none;
}
.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
  border-color: var(--danger);
}
.form-group.has-error .error-msg { display: block; }
.form-submit {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
  flex-wrap: wrap;
}
.form-submit .btn { flex-shrink: 0; }
.form-note {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--panel);
  border-top: 1px solid var(--border);
  padding: 48px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 32px;
  padding-bottom: 36px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-top: 14px;
  max-width: 360px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.footer-col ul a:hover { color: var(--primary); }
.footer-location {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 10px;
}
.footer-location svg { width: 16px; height: 16px; fill: var(--text-muted); flex-shrink: 0; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.footer-links a {
  font-size: 13px;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--primary); }
.footer-links .sep { color: var(--border); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .param-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero-copy h1 { font-size: 38px; }
  .faq-wrap { grid-template-columns: 1fr; gap: 24px; }
  .cta-panel { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 768px) {
  :root { --section: 48px; --section-mobile: 36px; }
  .container { padding: 0 16px; }
  .mobile-toggle { display: inline-flex; }
  .main-nav {
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 0 0 16px;
    gap: 2px;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 16px; }
  .main-nav a.active::after { left: 12px; right: 12px; }
  .header-top { flex-wrap: wrap; }
  .header-actions { margin-left: auto; }
  .location-trigger { padding: 8px 10px; font-size: 12px; }
  .hero-copy h1 { font-size: 30px; }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 10px; }
  .hero-stat { padding: 16px; }
  .hero-stat .stat-value { font-size: 26px; }
  .param-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .cta-panel { padding: 24px; }
  .form-row { grid-template-columns: 1fr; }
  .compare-grid { grid-template-columns: 1fr; gap: 24px; }
  .filter-bar { padding: 16px; flex-direction: column; align-items: stretch; }
  .filter-divider { width: 100%; height: 1px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
}
@media (max-width: 520px) {
  .steps-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; }
  .hero-copy h1 { font-size: 26px; }
  .btn-lg { padding: 12px 20px; font-size: 14px; }
  .brand { font-size: 17px; }
  .brand-icon { width: 30px; height: 30px; }
}

/* roulang page: category3 */
:root {
            --bg: #0D0F12;
            --panel: #14171C;
            --card: #191E24;
            --border: #2A323D;
            --primary: #C8FF2E;
            --secondary: #FFB547;
            --danger: #FF5C5C;
            --success: #2FD07C;
            --text: #F2F4F6;
            --text-secondary: #A7B0BB;
            --text-muted: #677280;
            --radius-card: 16px;
            --radius-btn: 10px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(200, 255, 46, 0.12);
            --container: 1240px;
            --gap: 24px;
            --section: 80px;
            --section-mobile: 48px;
            --transition: 0.22s ease;
            --font-sans: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
            --font-mono: "JetBrains Mono", "SF Mono", "Cascadia Code", "Roboto Mono", "Consolas", monospace;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--section) 0;
            position: relative;
        }
        .section-head {
            margin-bottom: 48px;
            max-width: 820px;
        }
        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .section-head .eyebrow::before {
            content: "";
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 12px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--text-secondary);
            white-space: nowrap;
        }
        .badge-up {
            color: var(--success);
            border-color: rgba(47, 208, 124, 0.3);
            background: rgba(47, 208, 124, 0.08);
        }
        .badge-down {
            color: var(--primary);
            border-color: rgba(200, 255, 46, 0.3);
            background: rgba(200, 255, 46, 0.08);
        }
        .badge-warn {
            color: var(--secondary);
            border-color: rgba(255, 181, 71, 0.3);
            background: rgba(255, 181, 71, 0.08);
        }
        .badge-danger {
            color: var(--danger);
            border-color: rgba(255, 92, 92, 0.3);
            background: rgba(255, 92, 92, 0.08);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #0D0F12;
            border: 1px solid var(--primary);
        }
        .btn-primary:hover {
            background: #d9ff5e;
            border-color: #d9ff5e;
            box-shadow: 0 8px 24px rgba(200, 255, 46, 0.25);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-outline {
            background: transparent;
            color: var(--text);
            border: 1px solid var(--border);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(200, 255, 46, 0.06);
        }
        .btn-outline:active {
            transform: translateY(1px);
        }
        .btn-sm {
            padding: 10px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
        }
        .arrow-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .arrow-icon svg {
            width: 14px;
            height: 14px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        /* Header / Nav */
        .site-header {
            background: #0D0F12;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 0;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 24px;
            max-width: var(--container);
            margin: 0 auto;
            gap: 20px;
            flex-wrap: wrap;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.02em;
            flex-shrink: 0;
        }
        .brand:hover {
            color: var(--text);
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: rgba(200, 255, 46, 0.12);
            border: 1px solid rgba(200, 255, 46, 0.3);
            flex-shrink: 0;
        }
        .brand-icon svg {
            width: 18px;
            height: 18px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .brand-name {
            display: inline-flex;
            align-items: baseline;
            gap: 2px;
        }
        .brand-name span {
            color: var(--primary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            margin-left: auto;
        }
        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--text);
            background: rgba(200, 255, 46, 0.06);
        }
        .main-nav a.active {
            color: var(--primary);
            background: rgba(200, 255, 46, 0.06);
        }
        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .location-selector {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: var(--panel);
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .location-selector:hover {
            border-color: var(--primary);
            color: var(--text);
        }
        .location-selector svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: var(--panel);
            cursor: pointer;
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            background: var(--panel);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* Category Hero */
        .category-hero {
            background-color: var(--bg);
            background-image: linear-gradient(rgba(13, 15, 18, 0.82), rgba(13, 15, 18, 0.92)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 72px 0 64px;
            position: relative;
            border-bottom: 1px solid var(--border);
        }
        .category-hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 20% 20%, rgba(200, 255, 46, 0.08) 0%, transparent 55%), radial-gradient(ellipse at 80% 60%, rgba(255, 181, 71, 0.06) 0%, transparent 50%);
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 380px;
            gap: 48px;
            align-items: center;
        }
        .hero-content h1 {
            font-size: 52px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
        }
        .hero-content h1 .hl {
            color: var(--primary);
        }
        .hero-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 620px;
            margin-bottom: 28px;
        }
        .hero-tags {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-metrics {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .hero-metric-card {
            background: rgba(20, 23, 28, 0.9);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            backdrop-filter: blur(8px);
            transition: all var(--transition);
        }
        .hero-metric-card:hover {
            border-color: rgba(200, 255, 46, 0.4);
            box-shadow: var(--shadow-glow);
        }
        .hero-metric-card .metric-value {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .hero-metric-card .metric-label {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .hero-metric-card .metric-trend {
            display: inline-block;
            margin-top: 8px;
            font-size: 12px;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 12px;
        }

        /* Checklist Section */
        .checklist-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .checklist-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .checklist-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            opacity: 0;
            transition: opacity var(--transition);
        }
        .checklist-card:hover {
            border-color: rgba(200, 255, 46, 0.35);
            box-shadow: var(--shadow-card);
        }
        .checklist-card:hover::before {
            opacity: 1;
        }
        .checklist-card .card-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(200, 255, 46, 0.1);
            border: 1px solid rgba(200, 255, 46, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }
        .checklist-card .card-icon svg {
            width: 22px;
            height: 22px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .checklist-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .checklist-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .checklist-card .check-list {
            list-style: none;
            padding: 0;
        }
        .checklist-card .check-list li {
            font-size: 13px;
            color: var(--text-secondary);
            padding: 6px 0 6px 22px;
            position: relative;
            line-height: 1.6;
        }
        .checklist-card .check-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            top: 6px;
            color: var(--success);
            font-weight: 700;
            font-size: 12px;
        }

        /* Steps Flow */
        .steps-flow {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .step-item {
            display: grid;
            grid-template-columns: 72px 1fr;
            gap: 24px;
            position: relative;
            padding-bottom: 32px;
        }
        .step-item:last-child {
            padding-bottom: 0;
        }
        .step-item::before {
            content: "";
            position: absolute;
            left: 35px;
            top: 60px;
            bottom: 0;
            width: 2px;
            background: var(--border);
            border-radius: 2px;
        }
        .step-item:last-child::before {
            display: none;
        }
        .step-number {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--card);
            border: 2px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            position: relative;
            z-index: 1;
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .step-item:hover .step-number {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .step-detail {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            transition: all var(--transition);
        }
        .step-detail:hover {
            border-color: rgba(200, 255, 46, 0.3);
        }
        .step-detail .step-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .step-detail .step-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .step-detail .step-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        /* Terminal Block */
        .terminal-block {
            background: #0A0C0E;
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .terminal-header {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 12px 16px;
            background: #111418;
            border-bottom: 1px solid var(--border);
        }
        .terminal-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            flex-shrink: 0;
        }
        .terminal-dot.red {
            background: #FF5C5C;
        }
        .terminal-dot.yellow {
            background: #FFB547;
        }
        .terminal-dot.green {
            background: #2FD07C;
        }
        .terminal-title {
            margin-left: 8px;
            font-size: 13px;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }
        .terminal-body {
            padding: 20px 24px;
            font-family: var(--font-mono);
            font-size: 13px;
            line-height: 1.9;
            color: var(--text-secondary);
            overflow-x: auto;
            white-space: pre-wrap;
            word-break: break-all;
        }
        .terminal-body .cmd {
            color: var(--text);
            font-weight: 500;
        }
        .terminal-body .cmd::before {
            content: "$ ";
            color: var(--primary);
            font-weight: 700;
        }
        .terminal-body .comment {
            color: var(--text-muted);
            font-style: italic;
        }
        .terminal-body .output {
            color: var(--success);
        }
        .terminal-body .warn {
            color: var(--secondary);
        }
        .terminal-body .error {
            color: var(--danger);
        }

        /* Log Block */
        .log-block {
            background: #0A0C0E;
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 20px 24px;
            font-family: var(--font-mono);
            font-size: 12px;
            line-height: 2;
            color: var(--text-secondary);
            overflow-x: auto;
        }
        .log-block .log-line {
            display: block;
            white-space: pre-wrap;
            word-break: break-all;
        }
        .log-block .log-line .time {
            color: var(--text-muted);
        }
        .log-block .log-line .level-info {
            color: var(--success);
            font-weight: 600;
        }
        .log-block .log-line .level-warn {
            color: var(--secondary);
            font-weight: 600;
        }
        .log-block .log-line .level-error {
            color: var(--danger);
            font-weight: 600;
        }
        .log-block .log-line .key {
            color: var(--primary);
        }

        /* Scenario Cards */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .scenario-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px;
            transition: all var(--transition);
            position: relative;
        }
        .scenario-card:hover {
            border-color: rgba(200, 255, 46, 0.35);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .scenario-card .scenario-num {
            font-family: var(--font-mono);
            font-size: 30px;
            font-weight: 700;
            color: var(--text-muted);
            line-height: 1;
            margin-bottom: 12px;
        }
        .scenario-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .scenario-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .scenario-card .scenario-img {
            width: 100%;
            aspect-ratio: 16/9;
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 14px;
            background: var(--panel);
            border: 1px solid var(--border);
        }
        .scenario-card .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* FAQ */
        .faq-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: start;
        }
        .faq-group {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(200, 255, 46, 0.25);
        }
        .faq-item.open {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--text);
            gap: 12px;
            user-select: none;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 6px;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition);
            font-size: 16px;
            color: var(--text-muted);
        }
        .faq-item.open .faq-icon {
            border-color: var(--primary);
            color: var(--primary);
            transform: rotate(45deg);
        }
        .faq-answer {
            display: none;
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.9;
            border-top: 1px solid transparent;
        }
        .faq-item.open .faq-answer {
            display: block;
            border-top-color: var(--border);
        }

        /* CTA Form */
        .cta-panel {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            box-shadow: var(--shadow-card);
        }
        .cta-info h3 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .cta-info p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 18px;
        }
        .cta-features {
            list-style: none;
            padding: 0;
            margin-bottom: 20px;
        }
        .cta-features li {
            padding: 8px 0 8px 24px;
            font-size: 14px;
            color: var(--text-secondary);
            position: relative;
            line-height: 1.6;
        }
        .cta-features li::before {
            content: "→";
            position: absolute;
            left: 0;
            top: 8px;
            color: var(--primary);
            font-weight: 600;
        }
        .cta-location {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 14px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .cta-location svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2;
        }
        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .form-group label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            background: #0D0F12;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 11px 14px;
            font-size: 14px;
            color: var(--text);
            transition: all var(--transition);
            outline: none;
            width: 100%;
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-muted);
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(200, 255, 46, 0.1);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .form-error {
            font-size: 12px;
            color: var(--danger);
            display: none;
        }
        .form-group.error input,
        .form-group.error textarea {
            border-color: var(--danger);
        }
        .form-group.error .form-error {
            display: block;
        }

        /* Footer */
        .site-footer {
            background: #0A0C0E;
            border-top: 1px solid var(--border);
            padding: 56px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand .brand {
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-location {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-location svg {
            width: 15px;
            height: 15px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2;
            flex-shrink: 0;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }
        .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-content h1 {
                font-size: 40px;
            }
            .checklist-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .faq-wrap {
                grid-template-columns: 1fr;
            }
            .cta-panel {
                grid-template-columns: 1fr;
                padding: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section: 48px;
            }
            .header-inner {
                flex-wrap: wrap;
                gap: 12px;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                order: 10;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 14px;
                font-size: 14px;
            }
            .nav-actions {
                margin-left: auto;
            }
            .hero-content h1 {
                font-size: 32px;
            }
            .hero-metrics {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .hero-metric-card .metric-value {
                font-size: 24px;
            }
            .checklist-grid {
                grid-template-columns: 1fr;
            }
            .step-item {
                grid-template-columns: 48px 1fr;
                gap: 14px;
            }
            .step-item::before {
                left: 23px;
                top: 48px;
            }
            .step-number {
                width: 48px;
                height: 48px;
                font-size: 18px;
            }
            .step-detail {
                padding: 16px;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
            .category-hero {
                padding: 48px 0 40px;
            }
            .breadcrumb {
                font-size: 12px;
                gap: 6px;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .terminal-body {
                padding: 14px 16px;
                font-size: 11px;
            }
            .log-block {
                padding: 14px 16px;
                font-size: 11px;
            }
        }
        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 26px;
            }
            .hero-metrics {
                grid-template-columns: 1fr;
            }
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 12px 16px;
            }
            .btn-lg {
                padding: 12px 22px;
                font-size: 14px;
            }
        }

/* roulang page: category4 */
:root {
            --bg: #0D0F12;
            --panel: #14171C;
            --card: #191E24;
            --card-2: #1C222A;
            --border: #2A323D;
            --border-light: #354050;
            --primary: #C8FF2E;
            --primary-dim: rgba(200, 255, 46, 0.15);
            --secondary: #FFB547;
            --danger: #FF5C5C;
            --success: #2FD07C;
            --text: #F2F4F6;
            --text-secondary: #A7B0BB;
            --text-muted: #677280;
            --radius-card: 16px;
            --radius-btn: 10px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(200, 255, 46, 0.12);
            --container: 1240px;
            --gap: 24px;
            --section: 72px;
            --section-mobile: 40px;
            --transition: 0.22s ease;
            --font-sans: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
            --font-mono: "JetBrains Mono", "SF Mono", "Cascadia Code", "Roboto Mono", "Consolas", monospace;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section) 0;
            position: relative;
        }

        .section-head {
            margin-bottom: 40px;
            max-width: 840px;
        }

        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .section-head .eyebrow::before {
            content: "";
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 12px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--text-secondary);
            white-space: nowrap;
        }

        .badge-up {
            color: var(--success);
            border-color: rgba(47, 208, 124, 0.3);
            background: rgba(47, 208, 124, 0.08);
        }

        .badge-down {
            color: var(--primary);
            border-color: rgba(200, 255, 46, 0.3);
            background: rgba(200, 255, 46, 0.08);
        }

        .badge-warn {
            color: var(--secondary);
            border-color: rgba(255, 181, 71, 0.3);
            background: rgba(255, 181, 71, 0.08);
        }

        .badge-danger {
            color: var(--danger);
            border-color: rgba(255, 92, 92, 0.3);
            background: rgba(255, 92, 92, 0.08);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--primary);
            color: #0D0F12;
            border: 1px solid var(--primary);
        }

        .btn-primary:hover {
            background: #d9ff5e;
            border-color: #d9ff5e;
            box-shadow: 0 8px 24px rgba(200, 255, 46, 0.25);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-outline {
            background: transparent;
            color: var(--text);
            border: 1px solid var(--border);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(200, 255, 46, 0.06);
        }

        .btn-outline:active {
            transform: translateY(1px);
        }

        .btn-sm {
            padding: 10px 18px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
        }

        .arrow-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .arrow-icon svg {
            width: 14px;
            height: 14px;
        }

        .btn:hover .arrow-icon,
        a:hover .arrow-icon {
            border-color: var(--primary);
            background: rgba(200, 255, 46, 0.1);
            transform: translateX(2px);
        }

        /* 顶部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13, 15, 18, 0.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 20px;
            flex-wrap: wrap;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--text);
            flex-shrink: 0;
        }

        .brand:hover {
            color: var(--text);
        }

        .brand-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary-dim);
            border: 1px solid rgba(200, 255, 46, 0.25);
            color: var(--primary);
            flex-shrink: 0;
        }

        .brand-icon svg {
            width: 20px;
            height: 20px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
        }

        .brand-name span {
            color: var(--primary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .location-selector {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            background: var(--card);
            font-size: 13px;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition);
            position: relative;
        }

        .location-selector:hover {
            border-color: var(--primary);
            color: var(--text);
        }

        .location-selector svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
            color: var(--primary);
        }

        .location-dropdown {
            position: absolute;
            top: calc(100% + 8px);
            right: 0;
            min-width: 220px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 8px;
            box-shadow: var(--shadow-card);
            display: none;
            z-index: 60;
            text-align: left;
        }

        .location-selector.open .location-dropdown {
            display: block;
        }

        .location-dropdown button {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 100%;
            padding: 10px 12px;
            border-radius: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            transition: all var(--transition);
            text-align: left;
        }

        .location-dropdown button:hover {
            background: rgba(200, 255, 46, 0.08);
            color: var(--primary);
        }

        .location-dropdown svg {
            width: 14px;
            height: 14px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            flex-shrink: 0;
        }

        .header-cta {
            flex-shrink: 0;
        }

        .mobile-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: var(--card);
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .mobile-toggle svg {
            width: 20px;
            height: 20px;
            fill: none;
            stroke: var(--text);
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .mobile-toggle:hover {
            border-color: var(--primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 10px 0;
            border-top: 1px solid var(--border);
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
            -webkit-overflow-scrolling: touch;
        }

        .main-nav::-webkit-scrollbar {
            height: 4px;
        }

        .main-nav::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 2px;
        }

        .main-nav::-webkit-scrollbar-track {
            background: transparent;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
            flex-shrink: 0;
        }

        .main-nav a:hover {
            color: var(--text);
            background: rgba(200, 255, 46, 0.06);
        }

        .main-nav a.active {
            color: var(--primary);
            background: var(--primary-dim);
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        /* 面包屑 */
        .breadcrumb-wrap {
            padding: 16px 0 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .separator {
            color: var(--text-muted);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* Hero */
        .hero {
            padding: 48px 0 56px;
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            border-bottom: 1px solid var(--border);
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 15, 18, 0.72) 0%, rgba(13, 15, 18, 0.88) 50%, var(--bg) 100%);
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 1;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: 44px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text);
            margin-bottom: 16px;
        }

        .hero-content h1 .hl {
            color: var(--primary);
        }

        .hero-sub {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .hero-stat-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            text-align: center;
            transition: all var(--transition);
        }

        .hero-stat-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-card);
        }

        .hero-stat-card .stat-value {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .hero-stat-card .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.4;
        }

        /* 版本概览卡片 */
        .version-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .version-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .version-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--border);
            transition: background var(--transition);
        }

        .version-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }

        .version-card.current::before {
            background: var(--primary);
        }

        .version-card.recommended::before {
            background: var(--success);
        }

        .version-card.legacy::before {
            background: var(--secondary);
        }

        .version-card.preview::before {
            background: var(--danger);
        }

        .version-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            padding: 3px 10px;
            border-radius: 14px;
            margin-bottom: 10px;
        }

        .version-tag.current-tag {
            color: var(--primary);
            background: var(--primary-dim);
            border: 1px solid rgba(200, 255, 46, 0.3);
        }

        .version-tag.recommended-tag {
            color: var(--success);
            background: rgba(47, 208, 124, 0.1);
            border: 1px solid rgba(47, 208, 124, 0.3);
        }

        .version-tag.legacy-tag {
            color: var(--secondary);
            background: rgba(255, 181, 71, 0.1);
            border: 1px solid rgba(255, 181, 71, 0.3);
        }

        .version-tag.preview-tag {
            color: var(--danger);
            background: rgba(255, 92, 92, 0.1);
            border: 1px solid rgba(255, 92, 92, 0.3);
        }

        .version-name {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
            font-family: var(--font-mono);
        }

        .version-status {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 14px;
        }

        .version-metrics {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-bottom: 16px;
        }

        .version-metric {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            border-bottom: 1px dashed var(--border);
            padding-bottom: 6px;
        }

        .version-metric span:last-child {
            font-family: var(--font-mono);
            color: var(--text);
            font-weight: 500;
        }

        .version-card .btn {
            width: 100%;
        }

        /* 双栏参数对比 */
        .compare-panel {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
        }

        .compare-header {
            display: grid;
            grid-template-columns: 1.1fr 1fr 1fr;
            gap: 1px;
            background: var(--border);
            border-bottom: 1px solid var(--border);
        }

        .compare-header > div {
            padding: 18px 20px;
            font-weight: 600;
            font-size: 14px;
            background: var(--card);
        }

        .compare-header .param-col {
            color: var(--text-secondary);
            font-size: 13px;
        }

        .compare-header .ver-col {
            text-align: center;
            font-family: var(--font-mono);
            font-size: 16px;
            color: var(--primary);
        }

        .compare-header .ver-col.ver-old {
            color: var(--text-secondary);
        }

        .compare-row {
            display: grid;
            grid-template-columns: 1.1fr 1fr 1fr;
            gap: 1px;
            background: var(--border);
            border-bottom: 1px solid var(--border);
        }

        .compare-row > div {
            padding: 14px 20px;
            background: var(--card);
            font-size: 14px;
            line-height: 1.6;
        }

        .compare-row .param-name {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 13px;
        }

        .compare-row .ver-data {
            text-align: center;
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--text);
        }

        .compare-row .ver-data.highlight {
            color: var(--primary);
            font-weight: 600;
        }

        .compare-row .ver-data.better {
            color: var(--success);
        }

        .compare-row .ver-data.worse {
            color: var(--secondary);
        }

        .compare-row:nth-child(odd) > div {
            background: var(--card);
        }

        .compare-row:nth-child(even) > div {
            background: var(--card-2);
        }

        .compare-row:last-child {
            border-bottom: none;
        }

        /* 兼容矩阵 */
        .matrix-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            background: var(--panel);
        }

        .matrix-table {
            min-width: 820px;
            width: 100%;
            border-collapse: collapse;
        }

        .matrix-table th {
            padding: 16px 18px;
            background: var(--card);
            border-bottom: 1px solid var(--border);
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            text-align: left;
        }

        .matrix-table th:first-child {
            min-width: 180px;
        }

        .matrix-table th:not(:first-child) {
            text-align: center;
            font-family: var(--font-mono);
        }

        .matrix-table td {
            padding: 14px 18px;
            border-bottom: 1px solid var(--border);
            font-size: 14px;
            color: var(--text);
            text-align: left;
        }

        .matrix-table td:not(:first-child) {
            text-align: center;
        }

        .matrix-table tr:last-child td {
            border-bottom: none;
        }

        .matrix-table tr:hover td {
            background: rgba(200, 255, 46, 0.03);
        }

        .matrix-check {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            font-size: 14px;
            font-weight: 700;
        }

        .matrix-check.yes {
            color: var(--success);
            background: rgba(47, 208, 124, 0.12);
        }

        .matrix-check.partial {
            color: var(--secondary);
            background: rgba(255, 181, 71, 0.12);
        }

        .matrix-check.no {
            color: var(--danger);
            background: rgba(255, 92, 92, 0.12);
        }

        .matrix-note {
            font-size: 12px;
            color: var(--text-muted);
            text-align: left;
            padding: 12px 18px;
            background: var(--card);
            border-top: 1px solid var(--border);
        }

        /* 版本推荐区域 */
        .recommend-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .recommend-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 26px 24px;
            transition: all var(--transition);
            position: relative;
        }

        .recommend-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-card);
        }

        .recommend-card .rec-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            margin-bottom: 14px;
            font-size: 20px;
        }

        .recommend-card .rec-icon.blue {
            background: rgba(47, 208, 124, 0.12);
            border: 1px solid rgba(47, 208, 124, 0.3);
            color: var(--success);
        }

        .recommend-card .rec-icon.amber {
            background: rgba(255, 181, 71, 0.12);
            border: 1px solid rgba(255, 181, 71, 0.3);
            color: var(--secondary);
        }

        .recommend-card .rec-icon.green {
            background: var(--primary-dim);
            border: 1px solid rgba(200, 255, 46, 0.3);
            color: var(--primary);
        }

        .recommend-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .recommend-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .recommend-card .rec-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .recommend-card .rec-tags span {
            font-size: 12px;
            color: var(--text-muted);
            background: var(--panel);
            border: 1px solid var(--border);
            padding: 3px 10px;
            border-radius: 12px;
        }

        /* 升级路径 */
        .upgrade-path {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
        }

        .upgrade-path h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text);
        }

        .path-steps {
            display: flex;
            align-items: stretch;
            gap: 0;
            flex-wrap: wrap;
        }

        .path-step {
            flex: 1;
            min-width: 160px;
            position: relative;
            padding: 0 12px;
        }

        .path-step:not(:last-child)::after {
            content: "";
            position: absolute;
            top: 24px;
            right: -4px;
            width: 8px;
            height: 2px;
            background: var(--border-light);
        }

        .path-step .step-dot {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--card);
            border: 2px solid var(--border-light);
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
            transition: all var(--transition);
        }

        .path-step.current .step-dot {
            background: var(--primary);
            border-color: var(--primary);
            box-shadow: 0 0 12px rgba(200, 255, 46, 0.4);
        }

        .path-step .step-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

        .path-step .step-desc {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* FAQ */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1.6fr;
            gap: 32px;
            align-items: start;
        }

        .faq-left .section-head {
            margin-bottom: 0;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-light);
        }

        .faq-item.open {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            transition: all var(--transition);
            width: 100%;
            text-align: left;
            gap: 12px;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1px solid var(--border);
            transition: all var(--transition);
            font-size: 16px;
            font-weight: 400;
            color: var(--text-secondary);
        }

        .faq-item.open .faq-question .faq-icon {
            border-color: var(--primary);
            color: var(--primary);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* CTA 区域 */
        .cta-panel {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .cta-panel::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--primary);
        }

        .cta-left h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }

        .cta-left p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .cta-left .cta-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 16px;
        }

        .cta-left .cta-meta span {
            font-size: 13px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .cta-left .cta-meta svg {
            width: 14px;
            height: 14px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2;
            flex-shrink: 0;
        }

        .cta-right {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .cta-right .btn {
            width: 100%;
            justify-content: space-between;
        }

        /* 页脚 */
        .site-footer {
            background: var(--panel);
            border-top: 1px solid var(--border);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-brand .brand {
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li {
            list-style: none;
        }

        .footer-col ul a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--primary);
        }

        .footer-location {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .footer-location svg {
            width: 14px;
            height: 14px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2;
            flex-shrink: 0;
            margin-top: 3px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-bottom .footer-legal {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-bottom .footer-legal a {
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .footer-bottom .footer-legal a:hover {
            color: var(--primary);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            :root {
                --section: 56px;
                --section-mobile: 36px;
            }

            .hero-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .hero-content h1 {
                font-size: 34px;
            }

            .version-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .recommend-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .recommend-grid .recommend-card:last-child {
                grid-column: span 2;
            }

            .faq-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .cta-panel {
                grid-template-columns: 1fr;
                gap: 20px;
                padding: 28px 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section: 40px;
                --section-mobile: 28px;
            }

            .header-top {
                flex-wrap: nowrap;
                gap: 10px;
            }

            .brand-name {
                font-size: 16px;
            }

            .brand-icon {
                width: 32px;
                height: 32px;
            }

            .location-selector {
                padding: 7px 10px;
                font-size: 12px;
            }

            .header-cta .btn {
                padding: 9px 14px;
                font-size: 13px;
            }

            .mobile-toggle {
                display: flex;
            }

            .main-nav {
                display: none;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                padding: 10px 0;
                border-top: 1px solid var(--border);
                overflow-y: auto;
                max-height: 50vh;
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                padding: 10px 14px;
                font-size: 14px;
                border-radius: 6px;
            }

            .main-nav a.active::after {
                display: none;
            }

            .hero {
                padding: 32px 0 40px;
            }

            .hero-content h1 {
                font-size: 28px;
            }

            .hero-sub {
                font-size: 15px;
            }

            .hero-stats {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .hero-stat-card {
                padding: 14px;
            }

            .hero-stat-card .stat-value {
                font-size: 24px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .version-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .compare-header {
                grid-template-columns: 1fr 1fr 1fr;
            }

            .compare-header > div {
                padding: 12px 12px;
                font-size: 12px;
            }

            .compare-row > div {
                padding: 10px 12px;
                font-size: 12px;
            }

            .compare-row .param-name {
                font-size: 12px;
            }

            .compare-row .ver-data {
                font-size: 12px;
            }

            .matrix-table {
                min-width: 640px;
            }

            .matrix-table th,
            .matrix-table td {
                padding: 10px 12px;
                font-size: 12px;
            }

            .recommend-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .recommend-grid .recommend-card:last-child {
                grid-column: auto;
            }

            .path-steps {
                flex-direction: column;
                gap: 12px;
            }

            .path-step {
                padding: 0;
            }

            .path-step:not(:last-child)::after {
                display: none;
            }

            .cta-panel {
                padding: 22px 18px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .hero-content h1 {
                font-size: 24px;
            }

            .hero-stat-card .stat-value {
                font-size: 20px;
            }

            .section-head h2 {
                font-size: 22px;
            }

            .compare-header {
                grid-template-columns: 1fr 1fr 1fr;
            }

            .compare-header > div {
                padding: 10px 8px;
                font-size: 11px;
            }

            .compare-row > div {
                padding: 8px 8px;
                font-size: 11px;
            }
        }

/* roulang page: category5 */
:root {
            --bg: #0D0F12;
            --panel: #14171C;
            --card: #191E24;
            --border: #2A323D;
            --primary: #C8FF2E;
            --secondary: #FFB547;
            --danger: #FF5C5C;
            --success: #2FD07C;
            --text: #F2F4F6;
            --text-secondary: #A7B0BB;
            --text-muted: #677280;
            --radius-card: 16px;
            --radius-btn: 10px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(200, 255, 46, 0.12);
            --container: 1240px;
            --gap: 24px;
            --section: 80px;
            --section-mobile: 48px;
            --transition: 0.22s ease;
            --font-sans: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
            --font-mono: "JetBrains Mono", "SF Mono", "Cascadia Code", "Roboto Mono", "Consolas", monospace;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--section) 0;
            position: relative;
        }
        .section-head {
            margin-bottom: 48px;
            max-width: 820px;
        }
        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .section-head .eyebrow::before {
            content: "";
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 12px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--text-secondary);
            white-space: nowrap;
        }
        .badge-up {
            color: var(--success);
            border-color: rgba(47, 208, 124, 0.3);
            background: rgba(47, 208, 124, 0.08);
        }
        .badge-down {
            color: var(--primary);
            border-color: rgba(200, 255, 46, 0.3);
            background: rgba(200, 255, 46, 0.08);
        }
        .badge-warn {
            color: var(--secondary);
            border-color: rgba(255, 181, 71, 0.3);
            background: rgba(255, 181, 71, 0.08);
        }
        .badge-danger {
            color: var(--danger);
            border-color: rgba(255, 92, 92, 0.3);
            background: rgba(255, 92, 92, 0.08);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #0D0F12;
            border: 1px solid var(--primary);
        }
        .btn-primary:hover {
            background: #d9ff5e;
            border-color: #d9ff5e;
            box-shadow: 0 8px 24px rgba(200, 255, 46, 0.25);
            transform: translateY(-1px);
            color: #0D0F12;
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-outline {
            background: transparent;
            color: var(--text);
            border: 1px solid var(--border);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(200, 255, 46, 0.06);
        }
        .btn-outline:active {
            transform: translateY(1px);
        }
        .btn-sm {
            padding: 10px 18px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
        }
        .arrow-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .arrow-icon svg {
            width: 14px;
            height: 14px;
            stroke: currentColor;
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .btn:hover .arrow-icon {
            border-color: var(--primary);
            background: rgba(200, 255, 46, 0.08);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }
        .top-bar {
            background: #08090B;
            border-bottom: 1px solid #1A1E24;
            position: relative;
            z-index: 100;
        }
        .top-bar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 48px;
            gap: 16px;
        }
        .top-bar-left {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .location-trigger {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            cursor: pointer;
            padding: 6px 12px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: var(--panel);
            transition: all var(--transition);
        }
        .location-trigger:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .location-trigger svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
        }
        .main-header {
            background: var(--panel);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 99;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .main-header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 24px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.01em;
        }
        .brand:hover {
            color: var(--primary);
        }
        .brand-icon {
            width: 32px;
            height: 32px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            border-radius: 8px;
            flex-shrink: 0;
        }
        .brand-icon svg {
            width: 18px;
            height: 18px;
            fill: none;
            stroke: #0D0F12;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .brand-name {
            display: inline-flex;
            align-items: baseline;
        }
        .brand-name span:last-child {
            color: var(--primary);
            margin-left: 4px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            border-bottom: 2px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: rgba(200, 255, 46, 0.05);
        }
        .main-nav a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
            font-weight: 600;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            border-radius: 8px;
            border: 1px solid var(--border);
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .mobile-nav {
            display: none;
            background: var(--panel);
            border-top: 1px solid var(--border);
            padding: 16px 24px;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            padding: 10px 12px;
            font-size: 15px;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all var(--transition);
        }
        .mobile-nav a:hover {
            color: var(--primary);
            background: rgba(200, 255, 46, 0.05);
        }
        .mobile-nav a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(200, 255, 46, 0.06);
        }
        .breadcrumb {
            padding: 16px 0;
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--text);
        }
        .hero-category {
            background: #0A0C0F;
            position: relative;
            border-bottom: 1px solid var(--border);
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: center;
        }
        .hero-category::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.25;
            filter: saturate(0.6);
        }
        .hero-category::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 15, 18, 0.7) 0%, rgba(13, 15, 18, 0.92) 100%);
        }
        .hero-category-inner {
            position: relative;
            z-index: 2;
            padding: 64px 0;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }
        .hero-category-content h1 {
            font-size: 52px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }
        .hero-category-content h1 .highlight {
            color: var(--primary);
        }
        .hero-category-content .hero-sub {
            font-size: 18px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 580px;
            margin-bottom: 24px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-category-visual {
            position: relative;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            min-height: 280px;
        }
        .hero-category-visual img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            filter: saturate(0.85) brightness(0.9);
        }
        .hero-category-visual::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(200deg, rgba(13, 15, 18, 0.2) 0%, rgba(13, 15, 18, 0.6) 100%);
        }
        .hero-stat-chip {
            position: absolute;
            bottom: 16px;
            left: 16px;
            right: 16px;
            z-index: 2;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .hero-stat-chip .chip {
            background: rgba(20, 23, 28, 0.92);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 8px 14px;
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .hero-stat-chip .chip strong {
            color: var(--primary);
            font-family: var(--font-mono);
            font-weight: 600;
        }
        .trouble-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 32px;
        }
        .trouble-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .trouble-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: transparent;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
            transition: all var(--transition);
        }
        .trouble-card:hover {
            border-color: rgba(200, 255, 46, 0.45);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }
        .trouble-card:hover::before {
            background: var(--primary);
        }
        .trouble-card .card-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            background: rgba(200, 255, 46, 0.08);
            border: 1px solid rgba(200, 255, 46, 0.2);
        }
        .trouble-card .card-icon svg {
            width: 22px;
            height: 22px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .trouble-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .trouble-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .trouble-card .card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .trouble-card .card-tags span {
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 14px;
            border: 1px solid var(--border);
            background: var(--panel);
            color: var(--text-muted);
        }
        .log-section {
            background: #0A0C0F;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            margin-top: 32px;
        }
        .log-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            background: var(--panel);
            border-bottom: 1px solid var(--border);
            flex-wrap: wrap;
            gap: 12px;
        }
        .log-header-left {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .log-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            display: inline-block;
        }
        .log-dot-red {
            background: #FF5C5C;
        }
        .log-dot-yellow {
            background: #FFB547;
        }
        .log-dot-green {
            background: #2FD07C;
        }
        .log-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-left: 8px;
        }
        .log-body {
            padding: 20px;
            font-family: var(--font-mono);
            font-size: 13px;
            line-height: 1.7;
            color: #B0C4D9;
            background: #0D0F12;
            overflow-x: auto;
            max-height: 360px;
            overflow-y: auto;
        }
        .log-body .log-line {
            white-space: pre-wrap;
            word-break: break-all;
            margin-bottom: 2px;
        }
        .log-body .log-line.err {
            color: #FF8A8A;
        }
        .log-body .log-line.warn {
            color: #FFD19A;
        }
        .log-body .log-line.ok {
            color: #8CE0B3;
        }
        .log-body .log-line.info {
            color: #8AB8D9;
        }
        .log-body .log-line.cmd {
            color: #C8FF2E;
            font-weight: 600;
        }
        .symptom-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 32px;
        }
        .symptom-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 20px 24px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
            transition: all var(--transition);
        }
        .symptom-item:hover {
            border-color: rgba(200, 255, 46, 0.4);
            box-shadow: var(--shadow-glow);
        }
        .symptom-num {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--panel);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            font-family: var(--font-mono);
            flex-shrink: 0;
        }
        .symptom-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .symptom-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .steps-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }
        .step-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            position: relative;
            transition: all var(--transition);
        }
        .step-card:hover {
            border-color: rgba(200, 255, 46, 0.4);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }
        .step-number {
            font-size: 40px;
            font-weight: 700;
            font-family: var(--font-mono);
            color: rgba(200, 255, 46, 0.25);
            line-height: 1;
            margin-bottom: 12px;
        }
        .step-card h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .faq-wrap {
            display: grid;
            grid-template-columns: 0.7fr 1.3fr;
            gap: 48px;
            align-items: start;
        }
        .faq-left h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .faq-left p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(200, 255, 46, 0.35);
        }
        .faq-item.open {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            gap: 12px;
            transition: all var(--transition);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-toggle {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition);
        }
        .faq-toggle svg {
            width: 14px;
            height: 14px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            transition: transform var(--transition);
        }
        .faq-item.open .faq-toggle {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(200, 255, 46, 0.08);
        }
        .faq-item.open .faq-toggle svg {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }
        .cta-panel {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            position: relative;
        }
        .cta-panel-inner {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 32px;
            padding: 48px;
        }
        .cta-left h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .cta-left p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .cta-info-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 16px;
        }
        .cta-info-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .cta-info-list li svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
        }
        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .form-group label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            background: #0D0F12;
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 11px 14px;
            font-size: 14px;
            color: var(--text);
            transition: all var(--transition);
            width: 100%;
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 2px rgba(200, 255, 46, 0.15);
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-muted);
        }
        .form-group textarea {
            resize: vertical;
            min-height: 90px;
        }
        .form-error {
            font-size: 12px;
            color: var(--danger);
            display: none;
        }
        .form-group.has-error input,
        .form-group.has-error select,
        .form-group.has-error textarea {
            border-color: var(--danger);
        }
        .form-group.has-error .form-error {
            display: block;
        }
        .site-footer {
            background: #08090B;
            border-top: 1px solid var(--border);
            padding: 48px 0 32px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .brand {
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: all var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-location {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 10px;
        }
        .footer-location svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2;
            flex-shrink: 0;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: var(--text-muted);
        }
        .footer-bottom-links a:hover {
            color: var(--primary);
        }
        @media (max-width: 1024px) {
            .trouble-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-category-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-category-content h1 {
                font-size: 38px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .symptom-list {
                grid-template-columns: 1fr;
            }
            .steps-flow {
                grid-template-columns: repeat(2, 1fr);
            }
            .faq-wrap {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .main-nav {
                gap: 4px;
            }
            .main-nav a {
                padding: 6px 10px;
                font-size: 13px;
            }
            .cta-panel-inner {
                grid-template-columns: 1fr;
                padding: 32px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: var(--section-mobile) 0;
            }
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-cta .btn {
                display: none;
            }
            .hero-category-content h1 {
                font-size: 30px;
            }
            .hero-category-content .hero-sub {
                font-size: 16px;
            }
            .trouble-grid {
                grid-template-columns: 1fr;
            }
            .steps-flow {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .cta-panel-inner {
                padding: 24px;
                gap: 20px;
            }
            .container {
                padding: 0 16px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .top-bar-inner {
                height: auto;
                padding: 8px 0;
                flex-wrap: wrap;
                gap: 8px;
            }
            .main-header-inner {
                height: 56px;
            }
            .brand {
                font-size: 17px;
            }
            .brand-icon {
                width: 28px;
                height: 28px;
            }
            .hero-category {
                min-height: auto;
            }
            .hero-category-inner {
                padding: 40px 0;
            }
            .hero-category-visual {
                min-height: 200px;
            }
            .hero-category-visual img {
                height: 200px;
            }
            .log-body {
                font-size: 12px;
                padding: 14px;
            }
        }
        @media (max-width: 520px) {
            .hero-category-content h1 {
                font-size: 24px;
            }
            .btn-lg {
                padding: 12px 20px;
                font-size: 14px;
            }
            .trouble-card {
                padding: 18px;
            }
            .step-card {
                padding: 18px;
            }
            .symptom-item {
                padding: 16px 18px;
                flex-direction: column;
                gap: 10px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-answer {
                font-size: 13px;
            }
            .footer-bottom-links {
                gap: 10px;
                justify-content: center;
            }
        }

/* roulang page: category6 */
:root {
            --bg: #0D0F12;
            --panel: #14171C;
            --card: #191E24;
            --border: #2A323D;
            --primary: #C8FF2E;
            --secondary: #FFB547;
            --danger: #FF5C5C;
            --success: #2FD07C;
            --text: #F2F4F6;
            --text-secondary: #A7B0BB;
            --text-muted: #677280;
            --radius-card: 16px;
            --radius-btn: 10px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(200, 255, 46, 0.12);
            --container: 1240px;
            --gap: 24px;
            --section: 80px;
            --section-mobile: 48px;
            --transition: 0.22s ease;
            --font-sans: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
            --font-mono: "JetBrains Mono", "SF Mono", "Cascadia Code", "Roboto Mono", "Consolas", monospace;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section) 0;
            position: relative;
        }

        .section-head {
            margin-bottom: 48px;
            max-width: 820px;
        }

        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .section-head .eyebrow::before {
            content: "";
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 12px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--text-secondary);
            white-space: nowrap;
        }

        .badge-up {
            color: var(--success);
            border-color: rgba(47, 208, 124, 0.3);
            background: rgba(47, 208, 124, 0.08);
        }

        .badge-down {
            color: var(--primary);
            border-color: rgba(200, 255, 46, 0.3);
            background: rgba(200, 255, 46, 0.08);
        }

        .badge-warn {
            color: var(--secondary);
            border-color: rgba(255, 181, 71, 0.3);
            background: rgba(255, 181, 71, 0.08);
        }

        .badge-danger {
            color: var(--danger);
            border-color: rgba(255, 92, 92, 0.3);
            background: rgba(255, 92, 92, 0.08);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--primary);
            color: #0D0F12;
            border: 1px solid var(--primary);
        }

        .btn-primary:hover {
            background: #d9ff5e;
            border-color: #d9ff5e;
            box-shadow: 0 8px 24px rgba(200, 255, 46, 0.25);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-outline {
            background: transparent;
            color: var(--text);
            border: 1px solid var(--border);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(200, 255, 46, 0.06);
        }

        .btn-outline:active {
            transform: translateY(1px);
        }

        .btn-sm {
            padding: 10px 18px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
        }

        .arrow-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .arrow-icon svg {
            width: 14px;
            height: 14px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .arrow-icon:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateX(3px);
        }

        /* Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13, 15, 18, 0.96);
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .header-top {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 12px 0;
            flex-wrap: wrap;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            flex-shrink: 0;
            letter-spacing: 0.01em;
        }

        .brand:hover {
            color: var(--text);
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--primary);
            flex-shrink: 0;
        }

        .brand-icon svg {
            width: 20px;
            height: 20px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .brand-name {
            font-family: var(--font-sans);
            display: inline-flex;
            align-items: baseline;
            gap: 2px;
        }

        .brand-name>span:last-child {
            color: var(--primary);
        }

        .header-location {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
            position: relative;
            flex-shrink: 0;
        }

        .header-location:hover {
            border-color: var(--primary);
            color: var(--text);
        }

        .header-location svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            color: var(--primary);
            flex-shrink: 0;
        }

        .header-location .loc-arrow {
            width: 12px;
            height: 12px;
            margin-left: 4px;
            color: var(--text-muted);
            transition: transform var(--transition);
        }

        .header-location:hover .loc-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: auto;
        }

        .header-cta {
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            padding-bottom: 10px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(42, 50, 61, 0.5);
            padding-top: 10px;
        }

        .main-nav a {
            position: relative;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .main-nav a:hover {
            color: var(--text);
            background: rgba(255, 255, 255, 0.04);
        }

        .main-nav a.active {
            color: var(--primary);
            background: rgba(200, 255, 46, 0.08);
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .mobile-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--text);
            cursor: pointer;
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .mobile-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .mobile-toggle svg {
            width: 20px;
            height: 20px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            padding: 18px 0;
            font-size: 14px;
            color: var(--text-muted);
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .sep {
            color: var(--text-muted);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
        }

        /* Category Hero */
        .category-hero {
            position: relative;
            padding: 56px 0 64px;
            background: var(--panel);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }

        .category-hero::after {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(13, 15, 18, 0.7) 0%, rgba(13, 15, 18, 0.92) 100%);
            z-index: 0;
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
        }

        .category-hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }

        .category-hero-content h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .category-hero-content h1 .highlight {
            color: var(--primary);
        }

        .category-hero-content .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 24px;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 28px;
        }

        .hero-metrics {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .hero-metric-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .hero-metric-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: var(--primary);
            border-radius: 3px 0 0 3px;
        }

        .hero-metric-card:hover {
            border-color: rgba(200, 255, 46, 0.4);
            box-shadow: var(--shadow-glow);
        }

        .hero-metric-card .metric-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            margin-bottom: 6px;
        }

        .hero-metric-card .metric-value {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .hero-metric-card .metric-unit {
            font-size: 14px;
            color: var(--text-secondary);
            margin-left: 4px;
            font-family: var(--font-sans);
            font-weight: 500;
        }

        .hero-metric-card .metric-trend {
            margin-top: 6px;
            font-size: 13px;
            font-weight: 600;
        }

        /* Plan Cards Section */
        .plan-section {
            background: var(--bg);
        }

        .plan-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap);
        }

        .plan-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }

        .plan-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 0;
            background: var(--primary);
            transition: height var(--transition);
            border-radius: 4px 0 0 4px;
        }

        .plan-card:hover {
            border-color: rgba(200, 255, 46, 0.45);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .plan-card:hover::before {
            height: 100%;
        }

        .plan-card-top {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 16px;
        }

        .plan-number {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.06em;
        }

        .plan-recommend {
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            border: 1px solid rgba(255, 181, 71, 0.3);
            background: rgba(255, 181, 71, 0.08);
            padding: 3px 10px;
            border-radius: 20px;
            white-space: nowrap;
        }

        .plan-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .plan-card .plan-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex-grow: 1;
        }

        .plan-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }

        .plan-tags span {
            font-size: 12px;
            font-weight: 500;
            color: var(--text-secondary);
            border: 1px solid var(--border);
            background: var(--bg);
            padding: 4px 10px;
            border-radius: 6px;
            transition: all var(--transition);
        }

        .plan-tags span:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .plan-card-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }

        .plan-card-bottom .scene-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        .plan-card-bottom .scene-label strong {
            color: var(--text-secondary);
            font-weight: 600;
        }

        /* Resource Cards */
        .resource-section {
            background: var(--panel);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .resource-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap);
        }

        .resource-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .resource-card:hover {
            border-color: rgba(200, 255, 46, 0.4);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .resource-card .res-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--primary);
            margin-bottom: 14px;
            flex-shrink: 0;
        }

        .resource-card .res-icon svg {
            width: 18px;
            height: 18px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .resource-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.3;
        }

        .resource-card .res-meta {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
            line-height: 1.6;
        }

        .resource-card .res-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex-grow: 1;
            margin-bottom: 14px;
        }

        .resource-card .res-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }

        .resource-card .res-size {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-muted);
        }

        .btn-download {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            border: 1px solid rgba(200, 255, 46, 0.35);
            padding: 6px 14px;
            border-radius: 8px;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-download:hover {
            background: rgba(200, 255, 46, 0.1);
            border-color: var(--primary);
        }

        .btn-download svg {
            width: 14px;
            height: 14px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        /* Scenario Section */
        .scenario-section {
            background: var(--bg);
        }

        .scenario-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .scenario-selector {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .scenario-tab {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 22px;
            border-radius: 12px;
            border: 1px solid var(--border);
            background: var(--card);
            cursor: pointer;
            transition: all var(--transition);
            text-align: left;
        }

        .scenario-tab:hover {
            border-color: rgba(200, 255, 46, 0.4);
        }

        .scenario-tab.active {
            border-color: var(--primary);
            background: rgba(200, 255, 46, 0.06);
            box-shadow: var(--shadow-glow);
        }

        .scenario-tab .tab-indicator {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            border: 2px solid var(--border);
            flex-shrink: 0;
            transition: all var(--transition);
        }

        .scenario-tab.active .tab-indicator {
            border-color: var(--primary);
            background: var(--primary);
            box-shadow: 0 0 8px rgba(200, 255, 46, 0.5);
        }

        .scenario-tab .tab-content {
            flex-grow: 1;
        }

        .scenario-tab .tab-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

        .scenario-tab .tab-sub {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .scenario-detail {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
        }

        .scenario-detail h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }

        .scenario-detail .detail-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .scenario-detail .detail-params {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }

        .scenario-detail .detail-params span {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            border: 1px solid var(--border);
            background: var(--bg);
            padding: 5px 12px;
            border-radius: 6px;
        }

        .scenario-detail .detail-steps {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }

        .scenario-detail .detail-steps li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            border-bottom: 1px solid rgba(42, 50, 61, 0.5);
        }

        .scenario-detail .detail-steps li:last-child {
            border-bottom: none;
        }

        .scenario-detail .detail-steps .step-num {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1px solid rgba(200, 255, 46, 0.3);
            background: rgba(200, 255, 46, 0.08);
        }

        /* FAQ Section */
        .faq-section {
            background: var(--panel);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .faq-layout {
            display: grid;
            grid-template-columns: 320px 1fr;
            gap: 48px;
            align-items: start;
        }

        .faq-left h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .faq-left p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(200, 255, 46, 0.35);
        }

        .faq-item.open {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            transition: all var(--transition);
            user-select: none;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 1px solid var(--border);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition);
            position: relative;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: "";
            position: absolute;
            background: currentColor;
            border-radius: 1px;
            transition: all var(--transition);
        }

        .faq-icon::before {
            width: 10px;
            height: 2px;
        }

        .faq-icon::after {
            width: 2px;
            height: 10px;
        }

        .faq-item.open .faq-icon {
            border-color: var(--primary);
            color: var(--primary);
            transform: rotate(180deg);
        }

        .faq-item.open .faq-icon::after {
            opacity: 0;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            padding-top: 4px;
            border-top: 1px solid rgba(42, 50, 61, 0.6);
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            opacity: 0.1;
            z-index: 0;
        }

        .cta-panel {
            position: relative;
            z-index: 1;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 48px;
            box-shadow: var(--shadow-card);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .cta-info h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .cta-info p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .cta-contact-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .cta-contact-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .cta-contact-list svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
        }

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .cta-form .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-group label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: 0.02em;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 12px 16px;
            font-size: 15px;
            color: var(--text);
            transition: all var(--transition);
            outline: none;
            width: 100%;
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-muted);
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(200, 255, 46, 0.12);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 80px;
        }

        .form-group .form-error {
            font-size: 12px;
            color: var(--danger);
            display: none;
        }

        .form-group.has-error input,
        .form-group.has-error select,
        .form-group.has-error textarea {
            border-color: var(--danger);
        }

        .form-group.has-error .form-error {
            display: block;
        }

        .cta-form .btn-primary {
            margin-top: 4px;
            width: 100%;
            justify-content: center;
        }

        /* Footer */
        .site-footer {
            background: var(--panel);
            border-top: 1px solid var(--border);
            padding: 56px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .brand {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 9px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--primary);
        }

        .footer-location {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 10px;
        }

        .footer-location svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .footer-bottom-links a {
            color: var(--text-muted);
            transition: color var(--transition);
            font-size: 13px;
        }

        .footer-bottom-links a:hover {
            color: var(--primary);
        }

        .footer-bottom .copyright {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            align-items: center;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .category-hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .hero-metrics {
                grid-template-columns: repeat(2, 1fr);
            }

            .plan-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .scenario-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .faq-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .cta-panel {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .header-top {
                gap: 12px;
            }

            .main-nav a {
                padding: 8px 12px;
                font-size: 13px;
            }
        }

        @media (max-width: 768px) {
            .header-top {
                flex-wrap: nowrap;
            }

            .header-location {
                padding: 6px 12px;
                font-size: 12px;
            }

            .header-location .loc-text {
                max-width: 96px;
                overflow: hidden;
                text-overflow: ellipsis;
                white-space: nowrap;
            }

            .header-actions .btn-primary {
                padding: 8px 16px;
                font-size: 13px;
            }

            .mobile-toggle {
                display: inline-flex;
            }

            .main-nav {
                display: none;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                padding: 12px 0;
                border-top: 1px solid var(--border);
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                padding: 10px 14px;
                font-size: 14px;
                border-radius: 8px;
            }

            .main-nav a.active::after {
                display: none;
            }

            .section {
                padding: var(--section-mobile) 0;
            }

            .section-head {
                margin-bottom: 32px;
            }

            .section-head h2 {
                font-size: 24px;
            }

            .category-hero {
                padding: 36px 0 44px;
            }

            .category-hero-content h1 {
                font-size: 30px;
            }

            .hero-metrics {
                grid-template-columns: 1fr;
            }

            .plan-grid {
                grid-template-columns: 1fr;
            }

            .resource-grid {
                grid-template-columns: 1fr;
            }

            .cta-panel {
                padding: 28px 20px;
            }

            .cta-form .form-row {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .breadcrumb {
                font-size: 13px;
                padding: 14px 0;
            }

            .scenario-detail {
                padding: 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .header-top {
                gap: 8px;
            }

            .brand {
                font-size: 17px;
            }

            .brand-icon {
                width: 32px;
                height: 32px;
                border-radius: 8px;
            }

            .brand-icon svg {
                width: 16px;
                height: 16px;
            }

            .header-location {
                padding: 5px 10px;
                font-size: 11px;
            }

            .header-actions .btn-primary {
                padding: 6px 12px;
                font-size: 12px;
            }

            .category-hero-content h1 {
                font-size: 26px;
            }

            .plan-card {
                padding: 20px;
            }

            .resource-card {
                padding: 18px;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }

            .faq-answer {
                padding: 0 16px;
            }

            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
        }

/* roulang page: category7 */
:root {
            --bg: #0D0F12;
            --panel: #14171C;
            --card: #191E24;
            --border: #2A323D;
            --primary: #C8FF2E;
            --secondary: #FFB547;
            --danger: #FF5C5C;
            --success: #2FD07C;
            --text: #F2F4F6;
            --text-secondary: #A7B0BB;
            --text-muted: #677280;
            --radius-card: 16px;
            --radius-btn: 10px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(200, 255, 46, 0.12);
            --container: 1240px;
            --gap: 24px;
            --section: 80px;
            --section-mobile: 48px;
            --transition: 0.22s ease;
            --font-sans: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
            --font-mono: "JetBrains Mono", "SF Mono", "Cascadia Code", "Roboto Mono", "Consolas", monospace;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            box-sizing: border-box;
        }

        *,
        *::before,
        *::after {
            box-sizing: inherit;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section) 0;
            position: relative;
        }

        .section-head {
            margin-bottom: 48px;
            max-width: 820px;
        }

        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .section-head .eyebrow::before {
            content: "";
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 12px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--text-secondary);
            white-space: nowrap;
        }

        .badge-up {
            color: var(--success);
            border-color: rgba(47, 208, 124, 0.3);
            background: rgba(47, 208, 124, 0.08);
        }

        .badge-down {
            color: var(--primary);
            border-color: rgba(200, 255, 46, 0.3);
            background: rgba(200, 255, 46, 0.08);
        }

        .badge-warn {
            color: var(--secondary);
            border-color: rgba(255, 181, 71, 0.3);
            background: rgba(255, 181, 71, 0.08);
        }

        .badge-danger {
            color: var(--danger);
            border-color: rgba(255, 92, 92, 0.3);
            background: rgba(255, 92, 92, 0.08);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--primary);
            color: #0D0F12;
            border: 1px solid var(--primary);
        }

        .btn-primary:hover {
            background: #d9ff5e;
            border-color: #d9ff5e;
            box-shadow: 0 8px 24px rgba(200, 255, 46, 0.25);
            transform: translateY(-1px);
            color: #0D0F12;
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-outline {
            background: transparent;
            color: var(--text);
            border: 1px solid var(--border);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(200, 255, 46, 0.06);
        }

        .btn-outline:active {
            transform: translateY(1px);
        }

        .btn-sm {
            padding: 10px 18px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
        }

        .arrow-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .arrow-icon svg {
            width: 14px;
            height: 14px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .btn:hover .arrow-icon {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateX(3px);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ============ Header / Navigation ============ */
        .site-header {
            background: var(--panel);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.4);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 12px 0;
            flex-wrap: wrap;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 22px;
            color: var(--text);
            letter-spacing: 0.02em;
            flex-shrink: 0;
            transition: color var(--transition);
        }

        .brand:hover {
            color: var(--primary);
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--card);
            border: 1px solid var(--border);
            flex-shrink: 0;
        }

        .brand-icon svg {
            width: 22px;
            height: 22px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .brand-name {
            display: inline-flex;
            align-items: baseline;
            gap: 2px;
        }

        .brand-name span {
            color: var(--primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--text);
            background: rgba(200, 255, 46, 0.06);
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .location-picker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 14px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }

        .location-picker:hover {
            border-color: var(--primary);
            color: var(--text);
        }

        .location-picker svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: var(--card);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            transition: all var(--transition);
        }

        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 12px 0;
            border-top: 1px solid var(--border);
            background: var(--panel);
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            padding: 12px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all var(--transition);
        }

        .mobile-menu a:hover {
            color: var(--text);
            background: rgba(200, 255, 46, 0.06);
        }

        .mobile-menu a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(200, 255, 46, 0.08);
        }

        .mobile-menu .btn {
            margin: 8px 16px;
            width: calc(100% - 32px);
        }

        /* ============ Breadcrumb ============ */
        .breadcrumb-bar {
            background: var(--panel);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .separator {
            color: var(--text-muted);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ============ Hero ============ */
        .hero {
            position: relative;
            padding: 72px 0 64px;
            overflow: hidden;
            background: var(--bg);
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }

        .hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 15, 18, 0.85) 0%, rgba(13, 15, 18, 0.95) 100%);
            z-index: 1;
        }

        .hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 20px;
            border: 1px solid rgba(200, 255, 46, 0.3);
            background: rgba(200, 255, 46, 0.08);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 20px;
        }

        .hero-content h1 {
            font-size: 52px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .hero-content h1 .highlight {
            color: var(--primary);
        }

        .hero-content .hero-sub {
            font-size: 18px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 540px;
            margin-bottom: 28px;
        }

        .hero-cta {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .hero-kpis {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-top: 36px;
        }

        .hero-kpi {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            text-align: left;
        }

        .hero-kpi .kpi-value {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .hero-kpi .kpi-label {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.02em;
        }

        .hero-visual {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .hero-visual::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
        }

        .hero-visual .visual-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }

        .hero-visual .visual-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
        }

        .hero-visual .visual-tag {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-muted);
            background: var(--card);
            padding: 4px 10px;
            border-radius: 6px;
            border: 1px solid var(--border);
        }

        .curve-chart {
            width: 100%;
            height: auto;
            background: var(--card);
            border-radius: 12px;
            padding: 16px;
            border: 1px solid var(--border);
        }

        .curve-chart svg {
            width: 100%;
            height: auto;
            display: block;
        }

        .chart-legend {
            display: flex;
            gap: 16px;
            margin-top: 12px;
            flex-wrap: wrap;
        }

        .chart-legend span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .chart-legend .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .dot-primary {
            background: var(--primary);
        }

        .dot-secondary {
            background: var(--secondary);
        }

        .dot-danger {
            background: var(--danger);
        }

        /* ============ Performance Curve Cards ============ */
        .curve-cards-section {
            background: var(--bg);
        }

        .curve-cards-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .curve-card {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .curve-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), transparent);
            opacity: 0;
            transition: opacity var(--transition);
        }

        .curve-card:hover {
            border-color: rgba(200, 255, 46, 0.4);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }

        .curve-card:hover::before {
            opacity: 1;
        }

        .curve-card .card-header {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 16px;
        }

        .curve-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 6px;
        }

        .curve-card .card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .curve-card .card-badge {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 8px;
            flex-shrink: 0;
        }

        .curve-card .card-chart {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 14px;
            margin-bottom: 16px;
        }

        .curve-card .card-chart svg {
            width: 100%;
            height: auto;
            display: block;
        }

        .curve-card .card-stats {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .curve-card .card-stat {
            flex: 1;
            min-width: 120px;
        }

        .curve-card .card-stat .stat-label {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.03em;
            margin-bottom: 4px;
        }

        .curve-card .card-stat .stat-value {
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
        }

        .curve-card .card-stat .stat-value.positive {
            color: var(--success);
        }

        .curve-card .card-stat .stat-value.negative {
            color: var(--danger);
        }

        .curve-card .card-stat .stat-value.highlight {
            color: var(--primary);
        }

        /* ============ Advanced Parameters Grid ============ */
        .params-section {
            background: var(--panel);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .params-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .param-module {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all var(--transition);
            position: relative;
        }

        .param-module:hover {
            border-color: rgba(200, 255, 46, 0.35);
            box-shadow: var(--shadow-glow);
        }

        .param-module .param-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: rgba(200, 255, 46, 0.1);
            border: 1px solid rgba(200, 255, 46, 0.25);
            color: var(--primary);
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .param-module .param-name {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .param-module .param-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .param-module .param-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 14px;
        }

        .param-module .param-range {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .param-module .param-range strong {
            font-family: var(--font-mono);
            color: var(--text-secondary);
            font-weight: 600;
        }

        .param-module .range-bar {
            flex: 1;
            height: 6px;
            background: var(--border);
            border-radius: 3px;
            position: relative;
            overflow: hidden;
        }

        .param-module .range-fill {
            height: 100%;
            background: var(--primary);
            border-radius: 3px;
        }

        /* ============ Before/After Comparison ============ */
        .comparison-section {
            background: var(--bg);
        }

        .comparison-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .comparison-item {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            transition: all var(--transition);
        }

        .comparison-item:hover {
            border-color: rgba(200, 255, 46, 0.3);
        }

        .comparison-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .comparison-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .comparison-improvement {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 8px;
            background: rgba(200, 255, 46, 0.1);
            border: 1px solid rgba(200, 255, 46, 0.3);
            color: var(--primary);
        }

        .comparison-bars {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .bar-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .bar-label {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.02em;
        }

        .bar-track {
            height: 14px;
            background: var(--card);
            border-radius: 7px;
            border: 1px solid var(--border);
            overflow: hidden;
            position: relative;
        }

        .bar-fill {
            height: 100%;
            border-radius: 6px;
            transition: width 0.6s ease;
            position: relative;
        }

        .bar-fill.before {
            background: var(--danger);
            opacity: 0.7;
        }

        .bar-fill.after {
            background: var(--primary);
        }

        .bar-value {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            color: var(--text);
        }

        .bar-value.before-val {
            color: var(--danger);
        }

        .bar-value.after-val {
            color: var(--primary);
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--panel);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 48px;
            align-items: start;
        }

        .faq-left .section-head {
            margin-bottom: 0;
        }

        .faq-left .faq-tip {
            margin-top: 20px;
            padding: 16px 20px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-left .faq-tip strong {
            color: var(--primary);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(200, 255, 46, 0.25);
        }

        .faq-item.open {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            transition: all var(--transition);
            user-select: none;
            text-align: left;
            width: 100%;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 1px solid var(--border);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition);
            font-size: 14px;
            color: var(--text-secondary);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            border-color: var(--primary);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        /* ============ CTA Form ============ */
        .cta-section {
            background: var(--bg);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-panel {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
        }

        .cta-left h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .cta-left p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .cta-left .cta-points {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .cta-left .cta-point {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--text-secondary);
        }

        .cta-left .cta-point svg {
            width: 18px;
            height: 18px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
            margin-top: 3px;
        }

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-group label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            letter-spacing: 0.02em;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 12px 16px;
            font-size: 15px;
            color: var(--text);
            transition: all var(--transition);
            width: 100%;
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-muted);
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(200, 255, 46, 0.1);
        }

        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }

        .form-group .error-msg {
            font-size: 13px;
            color: var(--danger);
            display: none;
        }

        .form-group.has-error input,
        .form-group.has-error textarea,
        .form-group.has-error select {
            border-color: var(--danger);
        }

        .form-group.has-error .error-msg {
            display: block;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--panel);
            border-top: 1px solid var(--border);
            padding: 56px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .brand {
            margin-bottom: 16px;
            font-size: 20px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--primary);
        }

        .footer-location {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            line-height: 1.6;
        }

        .footer-location svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
            margin-top: 3px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom .footer-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom .footer-links a {
            color: var(--text-muted);
            transition: color var(--transition);
            font-size: 13px;
        }

        .footer-bottom .footer-links a:hover {
            color: var(--primary);
        }

        .footer-bottom .icp-info {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 12px;
        }

        /* ============ Responsive ============ */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .hero-content h1 {
                font-size: 38px;
            }

            .hero-visual {
                max-width: 600px;
            }

            .curve-cards-grid {
                grid-template-columns: 1fr;
            }

            .params-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .cta-panel {
                grid-template-columns: 1fr;
                gap: 32px;
                padding: 36px;
            }

            .faq-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .main-nav {
                gap: 2px;
            }

            .main-nav a {
                padding: 6px 10px;
                font-size: 14px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--section-mobile) 0;
            }

            .section-head {
                margin-bottom: 32px;
            }

            .section-head h2 {
                font-size: 24px;
            }

            .hero {
                padding: 48px 0 40px;
            }

            .hero-content h1 {
                font-size: 30px;
                line-height: 1.3;
            }

            .hero-content .hero-sub {
                font-size: 16px;
            }

            .hero-kpis {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .hero-kpi .kpi-value {
                font-size: 22px;
            }

            .hero-cta {
                flex-direction: column;
                align-items: flex-start;
            }

            .hero-visual {
                padding: 20px;
            }

            .params-grid {
                grid-template-columns: 1fr;
            }

            .comparison-item {
                padding: 18px;
            }

            .comparison-bars {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .cta-panel {
                padding: 24px;
            }

            .form-row {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }

            .faq-answer {
                font-size: 14px;
            }

            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .footer-bottom .footer-links {
                gap: 12px;
            }

            .site-header .header-inner {
                padding: 10px 0;
                gap: 12px;
            }

            .brand {
                font-size: 18px;
            }

            .brand-icon {
                width: 32px;
                height: 32px;
                border-radius: 8px;
            }

            .brand-icon svg {
                width: 18px;
                height: 18px;
            }

            .main-nav {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-actions {
                gap: 8px;
            }

            .nav-actions .btn {
                display: none;
            }

            .location-picker {
                padding: 6px 10px;
                font-size: 13px;
            }

            .mobile-menu {
                display: none;
            }

            .mobile-menu.open {
                display: flex;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .hero-content h1 {
                font-size: 26px;
            }

            .hero-kpis {
                grid-template-columns: 1fr;
            }

            .hero-kpi {
                padding: 12px 16px;
            }

            .curve-card {
                padding: 18px;
            }

            .param-module {
                padding: 18px;
            }

            .cta-panel {
                padding: 20px;
            }

            .breadcrumb {
                font-size: 13px;
                gap: 6px;
            }

            .footer-bottom .icp-info {
                gap: 6px;
                flex-direction: column;
            }
        }