/* roulang page: index */
:root {
            --bg-main: #0f1117;
            --bg-card: #181a24;
            --bg-card-hover: #212433;
            --bg-header: rgba(15, 17, 23, 0.95);
            --primary: #e11d48;
            --primary-hover: #be123c;
            --primary-glow: rgba(225, 29, 72, 0.25);
            --amber: #f59e0b;
            --text-heading: #f8fafc;
            --text-body: #cbd5e1;
            --text-muted: #64748b;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.14);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* Reset & Base */
        *, *::before, *::after {
            box-sizing: border-box;
        }
        body {
            margin: 0;
            padding: 0;
            background-color: var(--bg-main);
            color: var(--text-body);
            font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            font-size: 15px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }
        h1, h2, h3, h4, h5, h6 {
            color: var(--text-heading);
            font-weight: 700;
            line-height: 1.35;
            margin-top: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover, a:focus {
            color: var(--primary);
        }

        /* Container & Global Helpers */
        .site-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .reading-flow {
            max-width: 860px;
            margin: 0 auto;
        }
        .section-padding {
            padding: 4.5rem 0;
            border-bottom: 1px solid var(--border-color);
        }
        .section-header {
            margin-bottom: 2.8rem;
            position: relative;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(225, 29, 72, 0.12);
            color: var(--primary);
            border: 1px solid rgba(225, 29, 72, 0.25);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 999px;
            margin-bottom: 0.85rem;
        }
        .section-title {
            font-size: 2rem;
            margin-bottom: 0.85rem;
            letter-spacing: -0.02em;
        }
        .section-desc {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            max-width: 760px;
            margin: 0;
        }

        /* Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-header);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-heading);
        }
        .brand-logo i {
            color: var(--primary);
            font-size: 1.35rem;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            padding: 6px 0;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--text-heading);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary) 0%, #be123c 100%);
            color: #ffffff !important;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 9px 20px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 14px var(--primary-glow);
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(225, 29, 72, 0.4);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--text-body) !important;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 9px 20px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--text-heading) !important;
            background: rgba(225, 29, 72, 0.08);
        }

        /* Hero Section */
        .hero-banner {
            padding: 4.5rem 0 3.5rem;
            background: radial-gradient(circle at 80% 20%, rgba(225, 29, 72, 0.12) 0%, transparent 60%);
        }
        .hero-title {
            font-size: 2.6rem;
            line-height: 1.25;
            margin-bottom: 1.2rem;
            background: linear-gradient(180deg, #ffffff 0%, #cbd5e1 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-intro {
            font-size: 1.05rem;
            color: var(--text-body);
            line-height: 1.85;
            margin-bottom: 2rem;
        }
        .live-preview-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            box-shadow: 0 20px 40px rgba(0,0,0,0.5);
            position: relative;
            overflow: hidden;
        }
        .live-preview-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary) 0%, var(--amber) 100%);
        }
        .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(239, 68, 68, 0.2);
            color: #ef4444;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
        }
        .live-pulse {
            width: 8px;
            height: 8px;
            background: #ef4444;
            border-radius: 50%;
            box-shadow: 0 0 0 rgba(239, 68, 68, 0.4);
            animation: pulse-red 1.6s infinite;
        }
        @keyframes pulse-red {
            0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
            70% { box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
            100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
        }
        .countdown-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            margin: 1.5rem 0;
        }
        .countdown-item {
            background: rgba(255,255,255,0.03);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            text-align: center;
            padding: 10px 5px;
        }
        .countdown-num {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--amber);
            font-family: monospace;
        }
        .countdown-label {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* 1. Dashboard Metrics */
        .metric-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: var(--transition);
        }
        .metric-card:hover {
            border-color: var(--border-light);
            transform: translateY(-3px);
        }
        .metric-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 0.75rem;
        }
        .metric-pulse {
            width: 8px;
            height: 8px;
            background: #10b981;
            border-radius: 50%;
            box-shadow: 0 0 6px #10b981;
        }
        .metric-val {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-heading);
            line-height: 1.1;
            margin-bottom: 0.35rem;
        }
        .metric-unit {
            font-size: 1.1rem;
            color: var(--amber);
            font-weight: 600;
            margin-left: 2px;
        }
        .metric-title {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
        }
        .metric-sub {
            font-size: 0.75rem;
            color: #10b981;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* 2. Pain Points */
        .pain-card {
            background: var(--bg-card);
            border-left: 3px solid #ef4444;
            padding: 1.4rem;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin-bottom: 1rem;
            border-top: 1px solid var(--border-color);
            border-right: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .pain-card h4 {
            font-size: 1.05rem;
            margin-bottom: 0.4rem;
            color: #f87171;
        }
        .pain-card p {
            margin: 0;
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        /* 3. Category Showcase (Only place linking to Category 1 & 2) */
        .category-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            position: relative;
            transition: var(--transition);
        }
        .category-box:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
            background: var(--bg-card-hover);
        }
        .cat-tag {
            align-self: flex-start;
            font-size: 0.75rem;
            padding: 3px 10px;
            border-radius: 4px;
            margin-bottom: 1rem;
            font-weight: 600;
        }
        .cat-tag.red {
            background: rgba(225, 29, 72, 0.15);
            color: var(--primary);
        }
        .cat-tag.amber {
            background: rgba(245, 158, 11, 0.15);
            color: var(--amber);
        }
        .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: 1.25rem;
        }

        /* 4. Service Matrix (6-grid) */
        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.75rem;
            height: 100%;
            transition: var(--transition);
        }
        .service-card:hover {
            border-color: var(--border-light);
            background: var(--bg-card-hover);
        }
        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(225, 29, 72, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
        }
        .service-card h3 {
            font-size: 1.15rem;
            margin-bottom: 0.6rem;
        }
        .service-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.65;
        }

        /* 5. Result Comparison Table */
        .comparison-table-wrapper {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }
        .custom-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            margin: 0;
            color: var(--text-body);
            background: transparent;
        }
        .custom-table th, .custom-table td {
            padding: 1.15rem 1.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        .custom-table th {
            background: rgba(0, 0, 0, 0.2);
            color: var(--text-heading);
            font-weight: 700;
            font-size: 0.95rem;
        }
        .highlight-col {
            background: rgba(225, 29, 72, 0.04);
            color: #ffffff;
            font-weight: 600;
        }

        /* 6. Milestones Timeline */
        .timeline-container {
            position: relative;
            padding-left: 2rem;
            border-left: 2px solid var(--border-color);
            margin-left: 1rem;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2.2rem;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-dot {
            position: absolute;
            left: calc(-2rem - 6px);
            top: 6px;
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
            box-shadow: 0 0 0 4px var(--bg-main);
        }
        .timeline-item h4 {
            font-size: 1.05rem;
            margin-bottom: 0.35rem;
            color: var(--text-heading);
        }
        .timeline-date {
            font-size: 0.78rem;
            color: var(--amber);
            font-weight: 600;
            margin-bottom: 0.4rem;
        }
        .timeline-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* 7. Article Stream (WeChat Column style) */
        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            margin-bottom: 1.25rem;
            display: flex;
            gap: 1.5rem;
            align-items: center;
            transition: var(--transition);
        }
        .article-card:hover {
            border-color: var(--border-light);
            background: var(--bg-card-hover);
            transform: translateX(4px);
        }
        .article-thumb {
            width: 130px;
            height: 90px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-sm);
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            border: 1px dashed var(--border-light);
        }
        .article-thumb i {
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .article-content {
            flex: 1;
        }
        .article-content h3 {
            font-size: 1.15rem;
            margin-bottom: 0.45rem;
        }
        .article-snippet {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0.6rem;
            line-height: 1.6;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* 8. Protocol & Route Matrix */
        .route-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 1.25rem;
        }
        .route-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .route-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .route-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-heading);
        }
        .route-ping {
            font-size: 0.8rem;
            font-family: monospace;
            padding: 2px 8px;
            border-radius: 4px;
            background: rgba(16, 185, 129, 0.15);
            color: #10b981;
            font-weight: 700;
        }
        .route-details {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            justify-content: space-between;
            border-top: 1px solid var(--border-color);
            padding-top: 0.6rem;
            margin: 0;
        }

        /* 9. Security Assurance */
        .security-shield-card {
            background: linear-gradient(180deg, var(--bg-card) 0%, rgba(24, 26, 36, 0.6) 100%);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem;
            text-align: center;
            height: 100%;
        }
        .security-icon {
            width: 60px;
            height: 60px;
            margin: 0 auto 1.25rem;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.1);
            color: var(--amber);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
        }

        /* 10. Quick Solver */
        .solver-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            height: 100%;
            position: relative;
        }
        .solver-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.12);
            font-family: monospace;
            line-height: 1;
            margin-bottom: 0.75rem;
        }

        /* 11. FAQ Accordion */
        .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 0.85rem;
            overflow: hidden;
        }
        .accordion-item summary {
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            color: var(--text-heading);
            display: flex;
            align-items: center;
            justify-content: space-between;
            list-style: none;
            transition: var(--transition);
        }
        .accordion-item summary::-webkit-details-marker {
            display: none;
        }
        .accordion-item summary:hover {
            color: var(--primary);
        }
        .accordion-item summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .accordion-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .accordion-body {
            padding: 0 1.5rem 1.25rem;
            color: var(--text-body);
            font-size: 0.92rem;
            line-height: 1.75;
            border-top: 1px solid var(--border-color);
            margin-top: 0.5rem;
            padding-top: 1rem;
        }

        /* 12. Conversion Form Section */
        .conversion-box {
            background: linear-gradient(135deg, #1f131a 0%, #151824 100%);
            border: 1px solid rgba(225, 29, 72, 0.3);
            border-radius: var(--radius-lg);
            padding: 3rem 2rem;
            text-align: center;
            box-shadow: 0 20px 40px rgba(0,0,0,0.6);
        }
        .inline-form {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            max-width: 680px;
            margin: 1.8rem auto 1rem;
        }
        .form-select, .form-input {
            background: rgba(15, 17, 23, 0.85);
            border: 1px solid var(--border-light);
            color: #ffffff;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
            flex: 1;
            min-width: 180px;
            height: auto;
        }
        .form-select:focus, .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-glow);
            background: #0f1117;
        }

        /* Footer */
        .site-footer {
            background: #090a0e;
            border-top: 1px solid var(--border-color);
            padding: 4rem 0 2rem;
        }
        .footer-brand {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-heading);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand i {
            color: var(--primary);
        }
        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        .footer-title {
            font-size: 1rem;
            color: var(--text-heading);
            margin-bottom: 1.2rem;
            font-weight: 700;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 0.6rem;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .copyright-bar {
            margin-top: 3.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-color);
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Mobile Drawer & Breakpoints */
        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-heading);
            font-size: 1.4rem;
            cursor: pointer;
        }
        @media screen and (max-width: 1023px) {
            .nav-menu {
                display: none;
            }
            .nav-menu.is-active {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-main);
                padding: 1.5rem;
                border-bottom: 1px solid var(--border-color);
                gap: 1rem;
                align-items: flex-start;
            }
            .nav-toggle {
                display: block;
            }
            .section-title {
                font-size: 1.65rem;
            }
            .hero-title {
                font-size: 1.95rem;
            }
            .article-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .article-thumb {
                width: 100%;
                height: 120px;
            }
        }
        @media screen and (max-width: 639px) {
            .countdown-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .inline-form {
                flex-direction: column;
            }
            .inline-form button {
                width: 100%;
            }
        }

/* roulang page: category2 */
:root {
      --bg-main: #0f1117;
      --bg-card: #181a24;
      --bg-card-hover: #212433;
      --bg-header: rgba(15, 17, 23, 0.95);
      --primary: #e11d48;
      --primary-hover: #be123c;
      --primary-glow: rgba(225, 29, 72, 0.25);
      --amber: #f59e0b;
      --green: #10b981;
      --cyan: #06b6d4;
      --text-heading: #f8fafc;
      --text-body: #cbd5e1;
      --text-muted: #64748b;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-light: rgba(255, 255, 255, 0.14);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    body {
      margin: 0;
      padding: 0;
      background-color: var(--bg-main);
      color: var(--text-body);
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      font-size: 15px;
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    a:hover, a:focus {
      color: var(--primary);
    }

    .site-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.25rem;
    }

    .section-padding {
      padding: 4.5rem 0;
      border-bottom: 1px solid var(--border-color);
    }

    .section-header {
      margin-bottom: 2.5rem;
      position: relative;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(225, 29, 72, 0.12);
      color: var(--primary);
      border: 1px solid rgba(225, 29, 72, 0.25);
      font-size: 0.8rem;
      font-weight: 600;
      padding: 3px 12px;
      border-radius: 999px;
      margin-bottom: 0.75rem;
    }

    .section-title {
      font-size: 1.85rem;
      color: var(--text-heading);
      margin-bottom: 0.65rem;
      letter-spacing: -0.01em;
      font-weight: 700;
    }

    .section-desc {
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
      max-width: 760px;
      margin: 0;
    }

    /* Header Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: var(--bg-header);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.2rem;
      font-weight: 800;
      color: var(--text-heading);
    }
    .brand-logo i {
      color: var(--primary);
      font-size: 1.35rem;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 2rem;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-body);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--text-heading);
    }
    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .nav-toggle {
      display: none;
      background: transparent;
      border: 1px solid var(--border-light);
      color: var(--text-heading);
      font-size: 1.2rem;
      padding: 6px 12px;
      border-radius: var(--radius-sm);
      cursor: pointer;
    }
    .btn-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: linear-gradient(135deg, var(--primary) 0%, #be123c 100%);
      color: #ffffff !important;
      font-weight: 600;
      font-size: 0.9rem;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      box-shadow: 0 4px 14px var(--primary-glow);
      transition: var(--transition);
      border: none;
      cursor: pointer;
    }
    .btn-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(225, 29, 72, 0.4);
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: transparent;
      color: var(--text-body) !important;
      font-weight: 600;
      font-size: 0.9rem;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-light);
      transition: var(--transition);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--text-heading) !important;
      background: rgba(225, 29, 72, 0.08);
    }

    /* Category 2 Head Notice Banner */
    .status-header-section {
      padding: 3.5rem 0 2.5rem;
      background: linear-gradient(180deg, rgba(24, 26, 36, 0.6) 0%, rgba(15, 17, 23, 0) 100%);
      border-bottom: 1px solid var(--border-color);
    }
    .status-badge-live {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(16, 185, 129, 0.1);
      color: var(--green);
      border: 1px solid rgba(16, 185, 129, 0.3);
      padding: 4px 14px;
      border-radius: 999px;
      font-size: 0.8rem;
      font-weight: 600;
      margin-bottom: 1rem;
    }
    .pulse-dot {
      width: 8px;
      height: 8px;
      background-color: var(--green);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--green);
      animation: pulse 1.8s infinite;
    }
    @keyframes pulse {
      0% { transform: scale(0.95); opacity: 0.8; }
      50% { transform: scale(1.3); opacity: 1; }
      100% { transform: scale(0.95); opacity: 0.8; }
    }
    .status-h1 {
      font-size: 2.2rem;
      line-height: 1.35;
      color: var(--text-heading);
      margin-bottom: 1rem;
      font-weight: 800;
    }
    .status-brief {
      color: var(--text-body);
      font-size: 1rem;
      line-height: 1.85;
      max-width: 840px;
      margin-bottom: 1.5rem;
    }
    .meta-bar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 1.5rem;
      font-size: 0.85rem;
      color: var(--text-muted);
      border-top: 1px solid var(--border-color);
      padding-top: 1rem;
    }
    .meta-bar span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* Metric Cards */
    .metric-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.6rem;
      height: 100%;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .metric-card:hover {
      border-color: rgba(255, 255, 255, 0.18);
      transform: translateY(-3px);
      box-shadow: 0 10px 24px rgba(0,0,0,0.3);
    }
    .metric-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--primary);
    }
    .metric-card.amber::before { background: var(--amber); }
    .metric-card.green::before { background: var(--green); }
    .metric-title {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 0.5rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .metric-value {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--text-heading);
      margin-bottom: 0.4rem;
      font-family: monospace, sans-serif;
    }
    .metric-sub {
      font-size: 0.8rem;
      color: #94a3b8;
    }

    /* Route Cards Grid */
    .route-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.6rem;
      display: flex;
      flex-direction: column;
      height: 100%;
      transition: var(--transition);
      position: relative;
    }
    .route-card:hover {
      border-color: rgba(225, 29, 72, 0.4);
      background: var(--bg-card-hover);
      transform: translateY(-4px);
    }
    .route-header {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      margin-bottom: 1.2rem;
    }
    .route-name {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-heading);
      margin: 0 0 4px;
    }
    .route-flag {
      font-size: 0.75rem;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
      background: rgba(255,255,255,0.06);
      color: var(--amber);
      border: 1px solid rgba(245, 158, 11, 0.25);
    }
    .route-tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-bottom: 1.2rem;
    }
    .tag-badge-pill {
      font-size: 0.72rem;
      padding: 2px 8px;
      border-radius: 999px;
      background: rgba(255,255,255,0.05);
      color: var(--text-body);
      border: 1px solid var(--border-color);
    }
    .route-meta-grid {
      background: rgba(0, 0, 0, 0.25);
      border-radius: var(--radius-sm);
      padding: 0.75rem;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 8px;
      margin-bottom: 1.2rem;
      text-align: center;
    }
    .meta-stat-label {
      font-size: 0.72rem;
      color: var(--text-muted);
      display: block;
    }
    .meta-stat-val {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-heading);
      font-family: monospace, sans-serif;
    }
    .route-desc-text {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 1.5rem;
      flex-grow: 1;
    }

    /* Tutorial Steps */
    .tutorial-step-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2rem 1.8rem;
      height: 100%;
      position: relative;
    }
    .step-number-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      background: var(--primary);
      color: #fff;
      font-weight: 800;
      border-radius: 50%;
      font-size: 1rem;
      margin-bottom: 1.2rem;
      box-shadow: 0 4px 12px var(--primary-glow);
    }
    .step-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 0.8rem;
    }
    .step-desc {
      font-size: 0.88rem;
      color: var(--text-body);
      line-height: 1.75;
      margin: 0;
    }

    /* Diagnostic Troubleshooting */
    .diag-item-box {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      height: 100%;
    }
    .diag-box-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-heading);
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 0.75rem;
    }
    .diag-box-title i {
      color: var(--amber);
    }
    .diag-box-p {
      font-size: 0.86rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin: 0;
    }

    /* Assurance Policy Section */
    .policy-box {
      background: linear-gradient(145deg, #151822 0%, #1c202d 100%);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 2.5rem;
    }
    .policy-item {
      display: flex;
      gap: 1rem;
      margin-bottom: 1.5rem;
    }
    .policy-item:last-child {
      margin-bottom: 0;
    }
    .policy-icon {
      width: 42px;
      height: 42px;
      border-radius: 8px;
      background: rgba(225, 29, 72, 0.15);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.15rem;
      flex-shrink: 0;
    }
    .policy-h5 {
      font-size: 1rem;
      color: var(--text-heading);
      font-weight: 700;
      margin-bottom: 0.35rem;
    }
    .policy-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin: 0;
    }

    /* Footer Styles */
    .site-footer {
      background: #090a0e;
      border-top: 1px solid var(--border-color);
      padding: 4.5rem 0 2rem;
    }
    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-heading);
      margin-bottom: 1rem;
    }
    .footer-brand i {
      color: var(--primary);
      font-size: 1.4rem;
    }
    .footer-desc {
      color: var(--text-muted);
      font-size: 0.88rem;
      line-height: 1.75;
      margin-bottom: 1.25rem;
    }
    .footer-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 1.2rem;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 0.75rem;
    }
    .footer-links a {
      color: var(--text-muted);
      font-size: 0.85rem;
    }
    .footer-links a:hover {
      color: var(--text-heading);
      padding-left: 4px;
    }
    .footer-bottom {
      border-top: 1px solid var(--border-color);
      margin-top: 3rem;
      padding-top: 1.5rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1rem;
      font-size: 0.8rem;
      color: #475569;
    }

    /* Responsive Queries */
    @media (max-width: 840px) {
      .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--bg-header);
        padding: 1.5rem;
        border-bottom: 1px solid var(--border-color);
        gap: 1rem;
      }
      .nav-menu.is-open {
        display: flex;
      }
      .nav-toggle {
        display: block;
      }
      .status-h1 {
        font-size: 1.75rem;
      }
      .section-padding {
        padding: 3rem 0;
      }
      .policy-box {
        padding: 1.5rem;
      }
    }

/* roulang page: category1 */
:root {
      --bg-main: #0f1117;
      --bg-card: #181a24;
      --bg-card-hover: #212433;
      --bg-header: rgba(15, 17, 23, 0.95);
      --primary: #e11d48;
      --primary-hover: #be123c;
      --primary-glow: rgba(225, 29, 72, 0.25);
      --amber: #f59e0b;
      --text-heading: #f8fafc;
      --text-body: #cbd5e1;
      --text-muted: #64748b;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-light: rgba(255, 255, 255, 0.14);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      padding: 0;
      background-color: var(--bg-main);
      color: var(--text-body);
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      font-size: 15px;
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    a:hover, a:focus {
      color: var(--primary);
    }

    /* Layout Containers */
    .site-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.25rem;
    }

    .column-read-container {
      max-width: 840px;
      margin: 0 auto;
    }

    .section-padding {
      padding: 4.5rem 0;
      border-bottom: 1px solid var(--border-color);
    }

    /* Header Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: var(--bg-header);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.2rem;
      font-weight: 800;
      color: var(--text-heading);
    }
    .brand-logo i {
      color: var(--primary);
      font-size: 1.35rem;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 2rem;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-body);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--text-heading);
    }
    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .nav-toggle {
      display: none;
      background: transparent;
      border: none;
      color: var(--text-heading);
      font-size: 1.4rem;
      cursor: pointer;
    }

    /* Common Buttons & Tags */
    .btn-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: linear-gradient(135deg, var(--primary) 0%, #be123c 100%);
      color: #ffffff !important;
      font-weight: 600;
      font-size: 0.9rem;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      box-shadow: 0 4px 14px var(--primary-glow);
      transition: var(--transition);
      border: none;
      cursor: pointer;
    }
    .btn-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(225, 29, 72, 0.4);
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: transparent;
      color: var(--text-body) !important;
      font-weight: 600;
      font-size: 0.88rem;
      padding: 8px 18px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-light);
      transition: var(--transition);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--text-heading) !important;
      background: rgba(225, 29, 72, 0.08);
    }

    .badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      background: rgba(225, 29, 72, 0.12);
      color: var(--primary);
      border: 1px solid rgba(225, 29, 72, 0.25);
      font-size: 0.78rem;
      font-weight: 600;
      padding: 2px 10px;
      border-radius: 999px;
    }
    .badge-amber {
      background: rgba(245, 158, 11, 0.12);
      color: var(--amber);
      border: 1px solid rgba(245, 158, 11, 0.3);
    }

    /* Section 1: H1 Header Area */
    .cat-header-section {
      padding: 3.5rem 0 2.5rem;
      background: radial-gradient(circle at 85% 10%, rgba(225, 29, 72, 0.08) 0%, transparent 50%);
      border-bottom: 1px solid var(--border-color);
    }
    .cat-meta-bar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 1.2rem;
      margin-bottom: 1rem;
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .cat-meta-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .cat-h1 {
      font-size: 2.3rem;
      line-height: 1.3;
      color: var(--text-heading);
      margin-bottom: 1.2rem;
      font-weight: 800;
      letter-spacing: -0.02em;
    }
    .cat-lead-box {
      background: var(--bg-card);
      border-left: 4px solid var(--primary);
      padding: 1.4rem 1.6rem;
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
      color: var(--text-body);
      font-size: 0.98rem;
      line-height: 1.85;
      margin-bottom: 1.5rem;
    }

    /* Section 2: Filter Bar */
    .filter-panel {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      margin-bottom: 2rem;
    }
    .filter-row {
      display: flex;
      align-items: center;
      padding: 0.5rem 0;
      border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
    }
    .filter-row:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .filter-label {
      width: 90px;
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .filter-options {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      flex: 1;
    }
    .filter-tag {
      padding: 4px 12px;
      border-radius: var(--radius-sm);
      font-size: 0.82rem;
      color: var(--text-body);
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid transparent;
      cursor: pointer;
      transition: var(--transition);
    }
    .filter-tag:hover {
      color: var(--text-heading);
      border-color: var(--border-light);
    }
    .filter-tag.active {
      background: var(--primary);
      color: #ffffff;
      font-weight: 600;
    }

    /* Section 3: Featured Column List */
    .column-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.6rem;
      margin-bottom: 1.5rem;
      display: flex;
      gap: 1.5rem;
      transition: var(--transition);
      position: relative;
    }
    .column-card:hover {
      background: var(--bg-card-hover);
      border-color: rgba(225, 29, 72, 0.3);
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    }
    .col-serial {
      font-size: 2.2rem;
      font-weight: 900;
      color: rgba(255, 255, 255, 0.12);
      line-height: 1;
      width: 48px;
      flex-shrink: 0;
      font-family: monospace;
    }
    .col-thumb-box {
      width: 140px;
      height: 100px;
      background: #12141c;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 6px;
      flex-shrink: 0;
      position: relative;
      overflow: hidden;
    }
    .col-thumb-box i {
      font-size: 1.8rem;
      color: var(--primary);
      opacity: 0.85;
    }
    .col-thumb-badge {
      font-size: 0.7rem;
      padding: 2px 6px;
      background: rgba(0,0,0,0.6);
      border-radius: 3px;
      color: #cbd5e1;
    }
    .col-content {
      flex: 1;
    }
    .col-title {
      font-size: 1.25rem;
      color: var(--text-heading);
      margin-bottom: 0.5rem;
      font-weight: 700;
    }
    .col-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 0.8rem;
      line-height: 1.6;
    }
    .col-meta-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 10px;
    }
    .col-tags {
      display: flex;
      gap: 8px;
      align-items: center;
      flex-wrap: wrap;
    }

    /* Section 4: Deep Reading / Editorial Evolution */
    .editorial-block {
      background: #141620;
      border-radius: var(--radius-lg);
      padding: 2.5rem;
      border: 1px solid var(--border-color);
    }
    .editorial-dropcap {
      float: left;
      font-size: 3.5rem;
      line-height: 0.8;
      padding-top: 4px;
      padding-right: 12px;
      color: var(--primary);
      font-weight: 800;
      font-family: serif;
    }
    .editorial-quote {
      border-left: 3px solid var(--amber);
      background: rgba(245, 158, 11, 0.05);
      padding: 1rem 1.4rem;
      margin: 1.5rem 0;
      font-style: italic;
      color: #e2e8f0;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    }
    .editorial-timeline {
      margin-top: 2rem;
      padding-left: 1.5rem;
      border-left: 2px solid rgba(255, 255, 255, 0.1);
    }
    .timeline-node {
      position: relative;
      margin-bottom: 1.8rem;
    }
    .timeline-node::before {
      content: '';
      position: absolute;
      left: -1.95rem;
      top: 6px;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 0 3px rgba(225, 29, 72, 0.25);
    }
    .timeline-heading {
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 0.3rem;
      font-size: 0.98rem;
    }
    .timeline-text {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Section 5: Top 10 Ranking List */
    .rank-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.2rem;
      display: flex;
      align-items: center;
      gap: 1.2rem;
      margin-bottom: 1rem;
      transition: var(--transition);
    }
    .rank-card:hover {
      background: var(--bg-card-hover);
      border-color: var(--border-light);
    }
    .rank-num {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.05);
      color: var(--text-heading);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 0.95rem;
      flex-shrink: 0;
    }
    .rank-num.top-3 {
      background: var(--primary);
      color: #ffffff;
      box-shadow: 0 2px 10px var(--primary-glow);
    }
    .rank-info {
      flex: 1;
      overflow: hidden;
    }
    .rank-title {
      font-size: 0.96rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 0.25rem;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .rank-metric {
      font-size: 0.8rem;
      color: var(--text-muted);
      display: flex;
      gap: 12px;
    }

    /* Section 6: Category FAQ Accordion */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 1rem;
      overflow: hidden;
    }
    .faq-header {
      padding: 1.2rem 1.5rem;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
      transition: var(--transition);
    }
    .faq-header:hover {
      background: var(--bg-card-hover);
    }
    .faq-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-heading);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .faq-title i {
      color: var(--primary);
    }
    .faq-arrow {
      color: var(--text-muted);
      transition: transform 0.25s ease;
    }
    .faq-content {
      padding: 0 1.5rem 1.4rem;
      color: var(--text-body);
      font-size: 0.92rem;
      line-height: 1.8;
      display: none;
      border-top: 1px dashed rgba(255, 255, 255, 0.05);
      padding-top: 1.2rem;
    }
    .faq-card.open .faq-content {
      display: block;
    }
    .faq-card.open .faq-arrow {
      transform: rotate(180deg);
      color: var(--primary);
    }

    /* Section 7: Feedback Form Card */
    .suggest-box {
      background: linear-gradient(135deg, #181a24 0%, #12141c 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2.5rem;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .suggest-box::before {
      content: '';
      position: absolute;
      top: -50%;
      left: 50%;
      transform: translateX(-50%);
      width: 400px;
      height: 200px;
      background: radial-gradient(circle, rgba(225, 29, 72, 0.15) 0%, transparent 70%);
      pointer-events: none;
    }
    .suggest-input-group {
      display: flex;
      max-width: 600px;
      margin: 1.5rem auto 0;
      gap: 10px;
    }
    .suggest-input {
      flex: 1;
      background: rgba(0, 0, 0, 0.4);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      padding: 10px 16px;
      color: #ffffff;
      font-size: 0.9rem;
      outline: none;
      transition: var(--transition);
    }
    .suggest-input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 2px rgba(225, 29, 72, 0.2);
    }

    /* Footer Styles */
    .site-footer {
      background: #090a0f;
      border-top: 1px solid var(--border-color);
      padding: 4rem 0 2rem;
    }
    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--text-heading);
      margin-bottom: 1rem;
    }
    .footer-brand i {
      color: var(--primary);
      font-size: 1.3rem;
    }
    .footer-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 1rem;
    }
    .footer-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-heading);
      margin-bottom: 1.2rem;
      letter-spacing: 0.05em;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 0.6rem;
      font-size: 0.88rem;
      color: var(--text-muted);
    }
    .footer-links a:hover {
      color: var(--text-heading);
    }
    .footer-bottom {
      margin-top: 3rem;
      padding-top: 1.5rem;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 0.8rem;
      color: #475569;
      text-align: center;
    }

    /* Responsive */
    @media (max-width: 768px) {
      .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--bg-card);
        padding: 1.5rem;
        border-bottom: 1px solid var(--border-color);
        gap: 1rem;
      }
      .nav-menu.show {
        display: flex;
      }
      .nav-toggle {
        display: block;
      }
      .cat-h1 {
        font-size: 1.65rem;
      }
      .column-card {
        flex-direction: column;
        gap: 1rem;
      }
      .col-thumb-box {
        width: 100%;
        height: 140px;
      }
      .suggest-input-group {
        flex-direction: column;
      }
      .filter-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
      }
    }