/* roulang page: index */
:root {
            --primary: #2563EB;
            --primary-hover: #1D4ED8;
            --accent: #F97316;
            --accent-hover: #EA580C;
            --bg: #F8FAFC;
            --surface: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --text-weak: #64748B;
            --border: #E2E8F0;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.12);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --nav-height: 64px;
            --fixed-bar-height: 64px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-weight: 400;
            margin: 0;
            padding-bottom: var(--fixed-bar-height);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition);
        }
        input {
            font-family: inherit;
            outline: none;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text);
            letter-spacing: -0.02em;
        }
        .logo-link:hover {
            color: var(--primary);
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), #3B82F6);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            flex-shrink: 0;
        }
        .logo-mark svg {
            width: 20px;
            height: 20px;
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-wrap {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0 16px;
            height: 40px;
            width: 220px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .search-wrap:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }
        .search-wrap input {
            border: none;
            background: transparent;
            font-size: 0.9rem;
            padding: 0 8px;
            flex: 1;
            min-width: 0;
            color: var(--text);
        }
        .search-wrap input::placeholder {
            color: var(--text-weak);
        }
        .search-wrap svg {
            width: 18px;
            height: 18px;
            color: var(--text-weak);
            flex-shrink: 0;
        }
        .login-btn {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            border: 1px solid var(--border);
            background: #fff;
            transition: all var(--transition);
        }
        .login-btn:hover {
            border-color: var(--primary);
            background: #EFF6FF;
            color: var(--primary-hover);
        }
        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            background: #fff;
            transition: all var(--transition);
        }
        .hamburger svg {
            width: 22px;
            height: 22px;
            color: var(--text);
        }
        .hamburger:hover {
            border-color: var(--primary);
            background: #EFF6FF;
        }

        /* ===== Nav Grid ===== */
        .nav-icon-bar {
            display: flex;
            align-items: center;
            gap: 4px;
            padding-bottom: 8px;
        }
        .nav-icon-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 16px;
            border-radius: 12px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-icon-item svg {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            transition: transform var(--transition);
        }
        .nav-icon-item:hover {
            color: var(--primary);
            background: #EFF6FF;
        }
        .nav-icon-item:hover svg {
            transform: scale(1.08);
        }
        .nav-icon-item.active {
            color: var(--primary);
            background: #EFF6FF;
            font-weight: 600;
        }
        .nav-icon-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }

        /* ===== Mobile Nav Drawer ===== */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 200;
            background: rgba(15, 23, 42, 0.4);
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s;
        }
        .mobile-drawer.open {
            opacity: 1;
            pointer-events: auto;
        }
        .drawer-panel {
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: min(85vw, 340px);
            background: #fff;
            padding: 24px 20px;
            box-shadow: -8px 0 30px rgba(0, 0, 0, 0.1);
            transform: translateX(100%);
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow-y: auto;
        }
        .mobile-drawer.open .drawer-panel {
            transform: translateX(0);
        }
        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }
        .drawer-close {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            background: #fff;
        }
        .drawer-close svg {
            width: 20px;
            height: 20px;
        }
        .drawer-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }
        .drawer-nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            padding: 16px 8px;
            border-radius: 14px;
            border: 1px solid var(--border);
            min-height: 88px;
            justify-content: center;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            transition: all var(--transition);
        }
        .drawer-nav-item svg {
            width: 28px;
            height: 28px;
            color: var(--primary);
        }
        .drawer-nav-item:hover,
        .drawer-nav-item.active {
            border-color: var(--primary);
            background: #EFF6FF;
            color: var(--primary);
        }

        /* ===== Section Basics ===== */
        .section {
            padding: 56px 0;
        }
        .section-alt {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-heading {
            font-size: 1.75rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .section-sub {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
            line-height: 1.75;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary);
            background: #EFF6FF;
            border: 1px solid #BFDBFE;
            border-radius: 999px;
            padding: 4px 12px;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

        /* ===== Cards ===== */
        .card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            padding: 24px;
            transition: all var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: #EFF6FF;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: var(--primary);
        }
        .card-icon svg {
            width: 26px;
            height: 26px;
        }
        .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .card-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
            transform: scale(1.03);
            color: #fff;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
            transform: scale(1.03);
            color: #fff;
        }
        .btn-outline {
            border: 1.5px solid var(--border);
            color: var(--text);
            background: #fff;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: #EFF6FF;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 14px 28px;
            font-size: 1rem;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(37, 99, 235, 0.3);
            outline-offset: 2px;
        }

        /* ===== Fixed Bottom CTA ===== */
        .fixed-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 90;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border);
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
            height: var(--fixed-bar-height);
            display: flex;
            align-items: center;
            padding: 0 16px;
        }
        .fixed-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            gap: 16px;
        }
        .fixed-cta-text {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            line-height: 1.4;
            flex: 1;
            min-width: 0;
        }
        .fixed-cta-text strong {
            color: var(--text);
        }
        .fixed-cta-btn {
            flex-shrink: 0;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            overflow: hidden;
            background: #0B1220;
            color: #fff;
            border-radius: 0 0 24px 24px;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/2b9b38d2b69b0536.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.45;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 18, 32, 0.92) 0%, rgba(11, 18, 32, 0.6) 45%, rgba(37, 99, 235, 0.35) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 72px 0 80px;
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
        }
        .hero-text {
            flex: 1 1 520px;
        }
        .hero-text h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            line-height: 1.25;
            margin-bottom: 20px;
        }
        .hero-text p {
            font-size: 1.05rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin-bottom: 28px;
        }
        .hero-cta-row {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-stats {
            display: flex;
            gap: 28px;
            margin-top: 32px;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-stat-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
        }
        .hero-stat-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .hero-visual {
            flex: 0 0 260px;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-poster {
            width: 220px;
            aspect-ratio: 9/16;
            border-radius: 20px;
            overflow: hidden;
            background: #fff;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
            border: 3px solid rgba(255, 255, 255, 0.15);
            position: relative;
        }
        .hero-poster img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-poster-badge {
            position: absolute;
            bottom: 12px;
            left: 12px;
            right: 12px;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(8px);
            border-radius: 10px;
            padding: 10px 14px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #fff;
            line-height: 1.4;
        }
        .hero-poster-badge span {
            display: block;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.7rem;
            font-weight: 400;
        }

        /* ===== Section Specific ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .timeline-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .timeline-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
        }
        .timeline-date {
            flex-shrink: 0;
            width: 64px;
            font-weight: 700;
            color: var(--primary);
            font-size: 0.9rem;
            padding-top: 2px;
        }
        .timeline-body {
            flex: 1;
        }
        .timeline-title {
            font-weight: 600;
            margin-bottom: 4px;
        }
        .timeline-meta {
            font-size: 0.85rem;
            color: var(--text-weak);
        }

        .badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 6px;
            padding: 3px 10px;
            letter-spacing: 0.02em;
        }
        .badge-blue {
            background: #EFF6FF;
            color: var(--primary);
        }
        .badge-orange {
            background: #FFF7ED;
            color: var(--accent);
        }
        .badge-green {
            background: #F0FDF4;
            color: #16A34A;
        }
        .badge-gray {
            background: #F1F5F9;
            color: var(--text-weak);
        }

        .table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            background: #fff;
            box-shadow: var(--shadow);
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            min-width: 600px;
        }
        .comparison-table th,
        .comparison-table td {
            padding: 14px 18px;
            text-align: left;
            border-bottom: 1px solid var(--border);
        }
        .comparison-table th {
            font-weight: 700;
            background: #F8FAFC;
            color: var(--text);
            font-size: 0.85rem;
        }
        .comparison-table tr:last-child td {
            border-bottom: none;
        }
        .comparison-table td:first-child {
            font-weight: 600;
            color: var(--text);
            white-space: nowrap;
        }
        .comparison-table .highlight-col {
            background: #EFF6FF;
            color: var(--primary);
            font-weight: 700;
        }

        .faq-list details {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-list details:hover {
            box-shadow: var(--shadow);
        }
        .faq-list summary {
            padding: 16px 20px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.95rem;
            user-select: none;
            transition: color var(--transition);
        }
        .faq-list summary:hover {
            color: var(--primary);
        }
        .faq-list summary::after {
            content: '+';
            font-size: 1.3rem;
            font-weight: 400;
            color: var(--text-weak);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-list details[open] summary::after {
            content: '-';
            color: var(--primary);
        }
        .faq-list .faq-answer {
            padding: 0 20px 16px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.75;
        }

        .changelog-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
        }
        .changelog-version {
            flex-shrink: 0;
            width: 72px;
            font-weight: 700;
            color: var(--primary);
            font-size: 0.9rem;
        }
        .changelog-body {
            flex: 1;
        }
        .changelog-title {
            font-weight: 600;
            margin-bottom: 4px;
        }

        .guide-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }
        .guide-step {
            position: relative;
            padding: 24px 20px;
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }
        .guide-step:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .guide-step-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.3;
            margin-bottom: 8px;
        }
        .guide-step h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .guide-step p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        .platform-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .platform-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 16px;
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            font-weight: 500;
            font-size: 0.9rem;
            transition: all var(--transition);
        }
        .platform-item:hover {
            border-color: var(--primary);
            background: #EFF6FF;
        }
        .platform-item svg {
            width: 22px;
            height: 22px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .footer {
            background: #0F172A;
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 80px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
        }
        .footer-brand {
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-brand .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            font-size: 0.9rem;
        }
        .footer-desc {
            font-size: 0.85rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
            margin-bottom: 16px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 32px;
            padding-top: 20px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== Media Queries ===== */
        @media (max-width: 1024px) {
            .grid-4,
            .platform-list,
            .guide-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-content {
                gap: 32px;
            }
            .hero-text h1 {
                font-size: 2.1rem;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .search-wrap {
                width: 160px;
            }
        }
        @media (max-width: 768px) {
            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
            }
            .grid-4,
            .platform-list,
            .guide-steps {
                grid-template-columns: 1fr 1fr;
            }
            .section {
                padding: 40px 0;
            }
            .section-heading {
                font-size: 1.45rem;
            }
            .hero {
                border-radius: 0 0 16px 16px;
            }
            .hero-content {
                padding: 48px 0 56px;
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-visual {
                flex: 1 1 auto;
                width: 100%;
                justify-content: flex-start;
            }
            .hero-poster {
                width: 180px;
            }
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .nav-icon-bar {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-drawer {
                display: block;
            }
            .search-wrap {
                display: none;
            }
            .header-brand-row {
                height: 52px;
            }
            .fixed-cta-bar {
                height: 60px;
                padding: 0 12px;
            }
            body {
                padding-bottom: 60px;
            }
            :root {
                --fixed-bar-height: 60px;
            }
            .fixed-cta-text {
                font-size: 0.8rem;
            }
            .fixed-cta-btn .btn {
                padding: 10px 16px;
                font-size: 0.8rem;
            }
            .hero-stats {
                gap: 18px;
            }
            .hero-stat-num {
                font-size: 1.2rem;
            }
            .comparison-table th,
            .comparison-table td {
                padding: 10px 12px;
                font-size: 0.8rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .grid-4,
            .platform-list,
            .guide-steps {
                grid-template-columns: 1fr;
            }
            .hero-text h1 {
                font-size: 1.5rem;
            }
            .hero-text p {
                font-size: 0.95rem;
            }
            .hero-stats {
                flex-wrap: wrap;
                gap: 14px;
            }
            .hero-cta-row {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .section-heading {
                font-size: 1.25rem;
            }
            .btn-lg {
                padding: 12px 20px;
                font-size: 0.9rem;
            }
        }
        @media (min-width: 769px) {
            .mobile-drawer {
                display: none !important;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2563EB;
            --primary-hover: #1D4ED8;
            --accent: #F97316;
            --accent-hover: #EA580C;
            --bg: #F8FAFC;
            --surface: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --text-weak: #64748B;
            --border: #E2E8F0;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.12);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --nav-height: 64px;
            --fixed-bar-height: 60px;
        }

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

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-weight: 400;
            margin: 0;
            padding-bottom: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition);
        }

        input {
            font-family: inherit;
            outline: none;
        }

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

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }

        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
            gap: 16px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text);
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }

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

        .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), #3B82F6);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            flex-shrink: 0;
        }

        .logo-mark svg {
            width: 20px;
            height: 20px;
        }

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

        .search-wrap {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0 16px;
            height: 40px;
            width: 220px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .search-wrap:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }

        .search-wrap input {
            border: none;
            background: transparent;
            font-size: 0.9rem;
            padding: 0 8px;
            flex: 1;
            min-width: 0;
            color: var(--text);
        }

        .search-wrap input::placeholder {
            color: var(--text-weak);
        }

        .search-wrap svg {
            width: 18px;
            height: 18px;
            color: var(--text-weak);
            flex-shrink: 0;
        }

        .login-btn {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            border: 1px solid var(--border);
            background: #fff;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .login-btn:hover {
            border-color: var(--primary);
            background: #EFF6FF;
            color: var(--primary-hover);
        }

        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            background: #fff;
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .hamburger svg {
            width: 22px;
            height: 22px;
            color: var(--text);
        }

        .hamburger:hover {
            border-color: var(--primary);
            background: #EFF6FF;
        }

        /* ===== Nav Grid ===== */
        .nav-icon-bar {
            display: flex;
            align-items: center;
            gap: 4px;
            padding-bottom: 8px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

        .nav-icon-bar::-webkit-scrollbar {
            display: none;
        }

        .nav-icon-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 16px;
            border-radius: 12px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-icon-item svg {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            transition: transform var(--transition);
        }

        .nav-icon-item:hover {
            color: var(--primary);
            background: #EFF6FF;
        }

        .nav-icon-item:hover svg {
            transform: scale(1.08);
        }

        .nav-icon-item.active {
            color: var(--primary);
            background: #EFF6FF;
            font-weight: 600;
        }

        .nav-icon-item.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        /* ===== Mobile Nav Drawer ===== */
        .mobile-nav-drawer {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 16px 20px;
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
        }

        .mobile-nav-drawer.open {
            display: block;
        }

        .mobile-nav-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
        }

        .mobile-nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            padding: 14px 8px;
            border-radius: 12px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            min-height: 64px;
            justify-content: center;
            border: 1px solid transparent;
        }

        .mobile-nav-item svg {
            width: 24px;
            height: 24px;
        }

        .mobile-nav-item:hover {
            background: #EFF6FF;
            color: var(--primary);
            border-color: #DBEAFE;
        }

        .mobile-nav-item.active {
            background: #EFF6FF;
            color: var(--primary);
            border-color: var(--primary);
        }

        /* ===== Page Header ===== */
        .page-header {
            padding: 40px 0 28px;
            background: linear-gradient(180deg, #EFF6FF 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--border);
        }

        .page-header-content {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-weak);
        }

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

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

        .breadcrumb .divider {
            color: #CBD5E0;
            user-select: none;
        }

        .page-header h1 {
            font-size: clamp(1.75rem, 4vw, 2.4rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text);
            margin: 0;
            line-height: 1.3;
        }

        .page-header .subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 760px;
            margin: 0;
            line-height: 1.8;
        }

        /* ===== Stats Strip ===== */
        .stats-strip {
            padding: 28px 0 8px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

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

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), #60A5FA);
            border-radius: 3px 3px 0 0;
        }

        .stat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.03em;
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .stat-desc {
            font-size: 0.8rem;
            color: var(--text-weak);
            margin-top: 4px;
        }

        /* ===== Section General ===== */
        .section {
            padding: 36px 0;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .section-title {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.01em;
            margin: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .section-title .title-accent {
            display: inline-block;
            width: 4px;
            height: 22px;
            background: var(--accent);
            border-radius: 2px;
            flex-shrink: 0;
        }

        .section-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            white-space: nowrap;
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

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

        .section-link svg {
            width: 16px;
            height: 16px;
            transition: transform var(--transition);
        }

        .section-link:hover svg {
            transform: translateX(3px);
        }

        /* ===== Match Cards ===== */
        .match-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .match-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .match-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: #BFDBFE;
        }

        .match-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background: #E2E8F0;
        }

        .match-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .match-card:hover .match-card-img img {
            transform: scale(1.04);
        }

        .match-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 10px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.95);
            color: var(--primary);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.6);
        }

        .match-card-body {
            padding: 18px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .match-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.45;
            margin: 0;
            transition: color var(--transition);
        }

        .match-card:hover .match-card-title {
            color: var(--primary);
        }

        .match-card-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }

        .match-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.78rem;
            color: var(--text-weak);
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }

        .match-card-meta .tag {
            padding: 3px 8px;
            border-radius: 4px;
            background: #EFF6FF;
            color: var(--primary);
            font-weight: 500;
            font-size: 0.72rem;
        }

        /* ===== Timeline ===== */
        .timeline-section {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow);
        }

        .timeline-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            position: relative;
        }

        .timeline-item {
            display: flex;
            gap: 20px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
            position: relative;
        }

        .timeline-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .timeline-time {
            flex-shrink: 0;
            width: 70px;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 2px;
        }

        .timeline-time .date-badge {
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--text-weak);
            background: var(--bg);
            padding: 2px 8px;
            border-radius: 4px;
        }

        .timeline-dot {
            flex-shrink: 0;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            margin-top: 6px;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
        }

        .timeline-dot.live {
            background: var(--accent);
            box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.2);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.2); }
            50% { box-shadow: 0 0 0 6px rgba(249, 115, 22, 0.1); }
        }

        .timeline-content {
            flex: 1;
            min-width: 0;
        }

        .timeline-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 4px;
        }

        .timeline-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== Data Panel ===== */
        .data-panel-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .data-panel-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }

        .data-panel-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: #BFDBFE;
        }

        .data-panel-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .data-panel-card h3 svg {
            width: 20px;
            height: 20px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .data-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            font-size: 0.88rem;
        }

        .data-row:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .data-row .label {
            color: var(--text-secondary);
            font-weight: 500;
        }

        .data-row .value {
            font-weight: 700;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .data-row .trend-up {
            color: #16A34A;
            font-size: 0.78rem;
            font-weight: 600;
        }

        .data-row .trend-down {
            color: #DC2626;
            font-size: 0.78rem;
            font-weight: 600;
        }

        /* ===== Tags Cloud ===== */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-chip {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
            background: var(--surface);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            cursor: pointer;
        }

        .tag-chip:hover {
            background: #EFF6FF;
            border-color: var(--primary);
            color: var(--primary);
        }

        .tag-chip.primary-tag {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .tag-chip.primary-tag:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 0;
            box-shadow: var(--shadow);
            overflow: hidden;
        }

        .faq-item details {
            cursor: pointer;
        }

        .faq-item summary {
            padding: 18px 20px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: all var(--transition);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .faq-indicator {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: #EFF6FF;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            transition: transform var(--transition);
        }

        .faq-item details[open] summary .faq-indicator {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-item summary:hover {
            color: var(--primary);
            background: #F8FAFC;
        }

        .faq-item .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            border-top: 1px solid var(--border);
            margin: 0 12px;
            padding-top: 14px;
        }

        .faq-item .faq-answer p {
            margin: 0;
        }

        /* ===== Subscribe ===== */
        .subscribe-card {
            background: linear-gradient(135deg, #1E40AF 0%, #2563EB 50%, #3B82F6 100%);
            border-radius: var(--radius-lg);
            padding: 36px;
            color: #fff;
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.25);
            position: relative;
            overflow: hidden;
        }

        .subscribe-card::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }

        .subscribe-card::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }

        .subscribe-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 0 8px;
            position: relative;
            z-index: 1;
        }

        .subscribe-card p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 20px;
            position: relative;
            z-index: 1;
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 200px;
            padding: 12px 16px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.92);
            font-size: 0.9rem;
            color: var(--text);
            outline: none;
            transition: all var(--transition);
        }

        .subscribe-form input:focus {
            border-color: #fff;
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.25);
            background: #fff;
        }

        .subscribe-form input::placeholder {
            color: var(--text-weak);
        }

        .subscribe-form button {
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 700;
            background: var(--accent);
            color: #fff;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .subscribe-form button:hover {
            background: var(--accent-hover);
            transform: scale(1.03);
        }

        .subscribe-form button:active {
            transform: scale(0.97);
        }

        /* ===== Footer ===== */
        .footer {
            background: #0F172A;
            color: #CBD5E0;
            padding: 48px 0 24px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.15rem;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary), #3B82F6);
        }

        .footer-brand .logo-mark svg {
            width: 18px;
            height: 18px;
        }

        .footer-desc {
            font-size: 0.88rem;
            color: #94A3B8;
            line-height: 1.7;
            margin: 0;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: #94A3B8;
            padding: 6px 0;
            transition: all var(--transition);
        }

        .footer-col a:hover {
            color: #fff;
            transform: translateX(3px);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.8rem;
            color: #64748B;
            flex-wrap: wrap;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .match-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-brand-row {
                height: 52px;
            }
            .search-wrap {
                display: none;
            }
            .login-btn {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-icon-bar {
                display: none;
            }
            .page-header {
                padding: 28px 0 20px;
            }
            .section {
                padding: 24px 0;
            }
            .match-grid {
                grid-template-columns: 1fr;
            }
            .data-panel-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .timeline-time {
                width: 56px;
                font-size: 0.78rem;
            }
            .subscribe-card {
                padding: 24px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form button {
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 16px;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .page-header h1 {
                font-size: 1.5rem;
            }
            .mobile-nav-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .timeline-item {
                flex-direction: column;
                gap: 8px;
            }
            .timeline-time {
                width: auto;
                flex-direction: row;
                align-items: center;
                gap: 6px;
            }
            .timeline-dot {
                display: none;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

        /* Focus accessibility */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .logo-link:focus-visible {
            outline-offset: 4px;
            border-radius: 8px;
        }

/* roulang page: category2 */
:root {
            --primary: #2563EB;
            --primary-hover: #1D4ED8;
            --accent: #F97316;
            --accent-hover: #EA580C;
            --bg: #F8FAFC;
            --surface: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --text-weak: #64748B;
            --border: #E2E8F0;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.12);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --nav-height: 64px;
            --fixed-bar-height: 64px;
        }
        :root {
            --fixed-bar-height: 60px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-weight: 400;
            margin: 0;
            padding-bottom: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition);
        }
        input {
            font-family: inherit;
            outline: none;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text);
            letter-spacing: -0.02em;
        }
        .logo-link:hover {
            color: var(--primary);
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), #3B82F6);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            flex-shrink: 0;
        }
        .logo-mark svg {
            width: 20px;
            height: 20px;
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-wrap {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0 16px;
            height: 40px;
            width: 220px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .search-wrap:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }
        .search-wrap input {
            border: none;
            background: transparent;
            font-size: 0.9rem;
            padding: 0 8px;
            flex: 1;
            min-width: 0;
            color: var(--text);
        }
        .search-wrap input::placeholder {
            color: var(--text-weak);
        }
        .search-wrap svg {
            width: 18px;
            height: 18px;
            color: var(--text-weak);
            flex-shrink: 0;
        }
        .login-btn {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            border: 1px solid var(--border);
            background: #fff;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .login-btn:hover {
            border-color: var(--primary);
            background: #EFF6FF;
            color: var(--primary-hover);
        }
        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            background: #fff;
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .hamburger svg {
            width: 22px;
            height: 22px;
            color: var(--text);
        }
        .hamburger:hover {
            border-color: var(--primary);
            background: #EFF6FF;
        }
        /* ===== Nav Grid ===== */
        .nav-icon-bar {
            display: flex;
            align-items: center;
            gap: 4px;
            padding-bottom: 8px;
            flex-wrap: wrap;
        }
        .nav-icon-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 16px;
            border-radius: 12px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-icon-item svg {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            transition: transform var(--transition);
        }
        .nav-icon-item:hover {
            color: var(--primary);
            background: #EFF6FF;
        }
        .nav-icon-item:hover svg {
            transform: scale(1.08);
        }
        .nav-icon-item.active {
            color: var(--primary);
            background: #EFF6FF;
            font-weight: 600;
        }
        .nav-icon-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 99px;
        }
        /* ===== Breadcrumb & Page Header ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-weak);
            padding: 20px 0 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: #CBD5E1;
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
        }
        .page-header-grid {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 24px;
            align-items: start;
            padding: 20px 0 8px;
        }
        .page-header-grid h1 {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--text);
            line-height: 1.25;
            margin: 0 0 8px;
        }
        .page-header-grid .page-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0;
        }
        .page-header-stats {
            display: flex;
            gap: 20px;
            align-items: center;
            flex-shrink: 0;
        }
        .stat-mini {
            text-align: center;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 12px 18px;
            min-width: 80px;
        }
        .stat-mini .num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-mini .label {
            font-size: 0.78rem;
            color: var(--text-weak);
        }

        /* ===== Guide Card List ===== */
        .guide-list-section {
            padding: 32px 0 8px;
        }
        .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
            gap: 16px;
            flex-wrap: wrap;
        }
        .section-head h2 {
            font-size: 1.45rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text);
            margin: 0;
        }
        .section-head h2 .accent-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            margin-right: 8px;
            vertical-align: middle;
        }
        .text-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition);
        }
        .text-link:hover {
            color: var(--primary-hover);
        }
        .text-link svg {
            width: 16px;
            height: 16px;
        }
        .guide-card {
            display: grid;
            grid-template-columns: 220px 1fr auto;
            gap: 20px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 16px;
            margin-bottom: 16px;
            transition: all var(--transition);
            box-shadow: var(--shadow);
            align-items: center;
        }
        .guide-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #CBD5E1;
        }
        .guide-card-thumb {
            width: 220px;
            height: 140px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: #E2E8F0;
        }
        .guide-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }
        .guide-card:hover .guide-card-thumb img {
            transform: scale(1.04);
        }
        .guide-card-body {
            min-width: 0;
        }
        .guide-card-body h3 {
            font-size: 1.08rem;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--text);
            line-height: 1.4;
        }
        .guide-card-body .guide-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0 0 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.6;
        }
        .guide-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-weak);
            flex-wrap: wrap;
        }
        .guide-meta .tag {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            background: #EFF6FF;
            color: var(--primary);
        }
        .guide-meta .tag.orange {
            background: #FFF7ED;
            color: var(--accent);
        }
        .guide-card-arrow {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--bg);
            color: var(--text-weak);
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .guide-card:hover .guide-card-arrow {
            background: #EFF6FF;
            color: var(--primary);
        }
        .guide-card-arrow svg {
            width: 20px;
            height: 20px;
        }

        /* ===== Featured Guides ===== */
        .featured-guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }
        .featured-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .featured-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .featured-card-body {
            padding: 16px;
        }
        .featured-card-body h3 {
            font-size: 1rem;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--text);
            line-height: 1.4;
        }
        .featured-card-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0 0 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .featured-card-body .guide-meta {
            font-size: 0.78rem;
        }

        /* ===== Category Entrances ===== */
        .category-entrance-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .category-entrance-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px;
            text-align: left;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: block;
        }
        .category-entrance-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #CBD5E1;
        }
        .category-entrance-card .cat-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: #EFF6FF;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .category-entrance-card .cat-icon svg {
            width: 22px;
            height: 22px;
        }
        .category-entrance-card h4 {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 4px;
        }
        .category-entrance-card p {
            font-size: 0.82rem;
            color: var(--text-weak);
            margin: 0;
            line-height: 1.5;
        }

        /* ===== Data Panel ===== */
        .data-panel {
            background: linear-gradient(135deg, #0F172A 0%, #1E3A5F 100%);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            color: #E2E8F0;
        }
        .data-panel h2 {
            color: #FFFFFF;
            font-size: 1.35rem;
            font-weight: 700;
            margin: 0 0 16px;
        }
        .data-panel-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .data-panel-item .dp-num {
            font-size: 2rem;
            font-weight: 800;
            color: #F97316;
            line-height: 1.2;
        }
        .data-panel-item .dp-label {
            font-size: 0.85rem;
            color: #94A3B8;
        }

        /* ===== Timeline ===== */
        .timeline-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .timeline-item {
            display: flex;
            gap: 16px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
            align-items: flex-start;
        }
        .timeline-item:last-child {
            border-bottom: none;
        }
        .timeline-date {
            font-size: 0.82rem;
            color: var(--text-weak);
            white-space: nowrap;
            padding-top: 2px;
            min-width: 72px;
            font-weight: 500;
        }
        .timeline-content {
            flex: 1;
            min-width: 0;
        }
        .timeline-content h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 4px;
        }
        .timeline-content p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===== FAQ ===== */
        .faq-list details {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
            transition: all var(--transition);
            overflow: hidden;
        }
        .faq-list details:hover {
            border-color: #CBD5E1;
        }
        .faq-list summary {
            padding: 18px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
        }
        .faq-list summary::-webkit-details-marker {
            display: none;
        }
        .faq-list summary .faq-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            color: var(--text-weak);
            transition: transform var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .faq-list summary .faq-icon svg {
            width: 20px;
            height: 20px;
        }
        .faq-list details[open] summary .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-list .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            background: linear-gradient(135deg, #2563EB 0%, #3B82F6 100%);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            text-align: center;
            color: #FFFFFF;
            box-shadow: var(--shadow-hover);
        }
        .cta-banner h2 {
            font-size: 1.4rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: #FFFFFF;
        }
        .cta-banner p {
            font-size: 0.95rem;
            color: #DBEAFE;
            margin: 0 0 18px;
        }
        .btn-primary-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 999px;
            font-size: 0.95rem;
            font-weight: 700;
            background: #FFFFFF;
            color: var(--primary);
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary-lg:hover {
            transform: scale(1.03);
            box-shadow: 0 4px 16px rgba(255, 255, 255, 0.3);
            color: var(--primary-hover);
        }
        .btn-primary-lg svg {
            width: 18px;
            height: 18px;
        }

        /* ===== Footer ===== */
        .footer {
            background: #0F172A;
            color: #E2E8F0;
            padding: 48px 0 24px;
            margin-top: 48px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.2rem;
            color: #FFFFFF;
            margin-bottom: 12px;
        }
        .footer-brand .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, #2563EB, #3B82F6);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            flex-shrink: 0;
        }
        .footer-brand .logo-mark svg {
            width: 18px;
            height: 18px;
        }
        .footer-desc {
            font-size: 0.88rem;
            color: #94A3B8;
            max-width: 320px;
            line-height: 1.7;
            margin: 0;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 12px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }
        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: #94A3B8;
            margin-bottom: 8px;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: #FFFFFF;
        }
        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: #64748B;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .page-header-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .page-header-stats {
                flex-wrap: wrap;
            }
            .guide-card {
                grid-template-columns: 160px 1fr auto;
                gap: 14px;
                padding: 12px;
            }
            .guide-card-thumb {
                width: 160px;
                height: 110px;
            }
            .featured-guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-entrance-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-panel-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .search-wrap {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-icon-bar {
                display: none;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                padding-bottom: 12px;
            }
            .nav-icon-bar.open {
                display: flex;
            }
            .nav-icon-item {
                padding: 14px 16px;
                border-radius: 10px;
                justify-content: flex-start;
            }
            .nav-icon-item.active::after {
                display: none;
            }
            .nav-icon-item.active {
                background: #EFF6FF;
                border-left: 3px solid var(--primary);
            }
            .page-header-grid h1 {
                font-size: 1.6rem;
            }
            .guide-card {
                grid-template-columns: 1fr;
                gap: 12px;
                padding: 12px;
            }
            .guide-card-thumb {
                width: 100%;
                height: 180px;
            }
            .guide-card-arrow {
                display: none;
            }
            .featured-guide-grid {
                grid-template-columns: 1fr;
            }
            .category-entrance-grid {
                grid-template-columns: 1fr;
            }
            .data-panel-grid {
                grid-template-columns: 1fr;
            }
            .data-panel {
                padding: 24px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-header-grid h1 {
                font-size: 1.4rem;
            }
            .page-header-stats .stat-mini {
                padding: 10px 14px;
                min-width: 64px;
            }
            .stat-mini .num {
                font-size: 1.2rem;
            }
            .guide-card-body h3 {
                font-size: 0.98rem;
            }
            .featured-card img {
                height: 140px;
            }
            .cta-banner {
                padding: 24px 18px;
            }
            .cta-banner h2 {
                font-size: 1.2rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #2563EB;
            --primary-hover: #1D4ED8;
            --accent: #F97316;
            --accent-hover: #EA580C;
            --bg: #F8FAFC;
            --surface: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --text-weak: #64748B;
            --border: #E2E8F0;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.12);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --nav-height: 64px;
            --fixed-bar-height: 60px;
        }

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

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-weight: 400;
            margin: 0;
            padding-bottom: var(--fixed-bar-height);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition);
        }

        input {
            font-family: inherit;
            outline: none;
        }

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

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }

        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text);
            letter-spacing: -0.02em;
        }

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

        .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), #3B82F6);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            flex-shrink: 0;
        }

        .logo-mark svg {
            width: 20px;
            height: 20px;
        }

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

        .search-wrap {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0 16px;
            height: 40px;
            width: 220px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .search-wrap:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }

        .search-wrap input {
            border: none;
            background: transparent;
            font-size: 0.9rem;
            padding: 0 8px;
            flex: 1;
            min-width: 0;
            color: var(--text);
        }

        .search-wrap input::placeholder {
            color: var(--text-weak);
        }

        .search-wrap svg {
            width: 18px;
            height: 18px;
            color: var(--text-weak);
            flex-shrink: 0;
        }

        .login-btn {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            border: 1px solid var(--border);
            background: #fff;
            transition: all var(--transition);
        }

        .login-btn:hover {
            border-color: var(--primary);
            background: #EFF6FF;
            color: var(--primary-hover);
        }

        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            background: #fff;
            transition: all var(--transition);
        }

        .hamburger svg {
            width: 22px;
            height: 22px;
            color: var(--text);
        }

        .hamburger:hover {
            border-color: var(--primary);
            background: #EFF6FF;
        }

        /* ===== Nav Grid ===== */
        .nav-icon-bar {
            display: flex;
            align-items: center;
            gap: 4px;
            padding-bottom: 8px;
        }

        .nav-icon-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 16px;
            border-radius: 12px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-icon-item svg {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            transition: transform var(--transition);
        }

        .nav-icon-item:hover {
            color: var(--primary);
            background: #EFF6FF;
        }

        .nav-icon-item:hover svg {
            transform: scale(1.08);
        }

        .nav-icon-item.active {
            color: var(--primary);
            background: #EFF6FF;
            font-weight: 600;
        }

        .nav-icon-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 999px;
        }

        /* ===== Mobile Nav ===== */
        .mobile-nav {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 12px 16px 16px;
        }

        .mobile-nav.open {
            display: block;
        }

        .mobile-nav-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
        }

        .mobile-nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            padding: 14px 8px;
            border-radius: 12px;
            font-size: 0.82rem;
            font-weight: 500;
            color: var(--text-secondary);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }

        .mobile-nav-item svg {
            width: 22px;
            height: 22px;
        }

        .mobile-nav-item:hover,
        .mobile-nav-item.active {
            color: var(--primary);
            background: #EFF6FF;
            border-color: var(--primary);
        }

        /* ===== Section Common ===== */
        .section {
            padding: 32px 0;
        }

        .section-alt {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-title {
            font-size: 1.4rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--text);
            margin-bottom: 6px;
        }

        .section-sub {
            font-size: 0.95rem;
            color: var(--text-weak);
            margin-bottom: 20px;
        }

        /* ===== Community Page Specific ===== */
        .community-hero {
            padding: 28px 0 16px;
            background: linear-gradient(180deg, #EFF6FF 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }

        .community-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .community-h1 {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text);
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .community-h1 .accent {
            color: var(--primary);
        }

        .community-intro {
            font-size: 1.02rem;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }

        .community-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 18px;
            position: relative;
            z-index: 1;
        }

        .stat-pill {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 8px 18px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
            box-shadow: var(--shadow);
        }

        .stat-pill strong {
            color: var(--primary);
            font-weight: 700;
        }

        /* Post list layout */
        .community-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 28px;
            align-items: start;
        }

        .post-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .post-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px 20px;
            display: flex;
            gap: 16px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            align-items: flex-start;
        }

        .post-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #BFDBFE;
        }

        .post-thumb {
            width: 80px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg);
        }

        .post-content {
            flex: 1;
            min-width: 0;
        }

        .post-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 6px;
        }

        .tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 0.72rem;
            font-weight: 600;
            background: #EFF6FF;
            color: var(--primary);
            line-height: 1.4;
        }

        .tag-hot {
            background: #FFF7ED;
            color: var(--accent);
        }

        .post-title {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
            line-height: 1.5;
        }

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

        .post-meta {
            font-size: 0.8rem;
            color: var(--text-weak);
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* Sidebar */
        .sidebar-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px;
            box-shadow: var(--shadow);
            margin-bottom: 18px;
        }

        .sidebar-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-title svg {
            width: 18px;
            height: 18px;
            color: var(--primary);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud .tag {
            font-size: 0.78rem;
            padding: 5px 14px;
            cursor: pointer;
            transition: all var(--transition);
        }

        .tag-cloud .tag:hover {
            background: var(--primary);
            color: #fff;
        }

        .player-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }

        .player-item:last-child {
            border-bottom: none;
        }

        .player-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, #DBEAFE, #BFDBFE);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .player-info {
            flex: 1;
            min-width: 0;
        }

        .player-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
        }

        .player-desc {
            font-size: 0.78rem;
            color: var(--text-weak);
        }

        .player-badge {
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--accent);
            background: #FFF7ED;
            padding: 2px 8px;
            border-radius: 999px;
        }

        /* Features strip */
        .community-features {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .feature-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: #BFDBFE;
        }

        .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: #EFF6FF;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 10px;
        }

        .feature-icon svg {
            width: 22px;
            height: 22px;
        }

        .feature-name {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text);
            margin-bottom: 4px;
        }

        .feature-desc {
            font-size: 0.8rem;
            color: var(--text-weak);
            line-height: 1.5;
        }

        /* FAQ */
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item summary {
            padding: 16px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '+';
            font-size: 1.4rem;
            font-weight: 400;
            color: var(--text-weak);
            transition: transform var(--transition);
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-item .faq-body {
            padding: 0 20px 16px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item[open] {
            border-color: #BFDBFE;
            box-shadow: var(--shadow);
        }

        /* CTA banner */
        .community-cta {
            background: linear-gradient(135deg, #1D4ED8 0%, #2563EB 50%, #3B82F6 100%);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .community-cta::after {
            content: '';
            position: absolute;
            top: -30px;
            right: -20px;
            width: 140px;
            height: 140px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-title {
            font-size: 1.25rem;
            font-weight: 800;
            margin-bottom: 4px;
        }

        .cta-desc {
            font-size: 0.9rem;
            opacity: 0.9;
            max-width: 500px;
        }

        .cta-btn {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            padding: 12px 24px;
            border-radius: 999px;
            font-size: 0.92rem;
            transition: all var(--transition);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            flex-shrink: 0;
            position: relative;
            z-index: 1;
        }

        .cta-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
            color: var(--primary-hover);
        }

        /* Footer */
        .footer {
            background: #0F172A;
            color: #CBD5E1;
            padding: 40px 0 20px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 28px;
            margin-bottom: 24px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.1rem;
            color: #fff;
            margin-bottom: 10px;
        }

        .footer-brand .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, #2563EB, #3B82F6);
        }

        .footer-brand .logo-mark svg {
            width: 18px;
            height: 18px;
        }

        .footer-desc {
            font-size: 0.85rem;
            color: #94A3B8;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #E2E8F0;
            margin-bottom: 12px;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: #94A3B8;
            padding: 4px 0;
            transition: color var(--transition);
        }

        .footer-col a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding-top: 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.78rem;
            color: #64748B;
        }

        /* Fixed bottom bar */
        .fixed-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 200;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-top: 1px solid var(--border);
            box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.06);
            padding: 10px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: var(--fixed-bar-height);
        }

        .fixed-bar-text {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text);
        }

        .fixed-bar-text span {
            color: var(--primary);
        }

        .fixed-bar-btn {
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            padding: 10px 20px;
            border-radius: 999px;
            font-size: 0.85rem;
            white-space: nowrap;
            flex-shrink: 0;
            transition: all var(--transition);
        }

        .fixed-bar-btn:hover {
            background: var(--primary-hover);
            transform: scale(1.03);
        }

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

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

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

        @media (max-width: 768px) {
            .header-tools .search-wrap {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .nav-icon-bar {
                display: none;
            }

            .mobile-nav {
                display: none;
            }

            .mobile-nav.open {
                display: block;
            }

            .community-h1 {
                font-size: 1.5rem;
            }

            .community-stats-row {
                gap: 10px;
            }

            .stat-pill {
                padding: 6px 14px;
                font-size: 0.78rem;
            }

            .post-card {
                flex-direction: column;
                padding: 14px 16px;
            }

            .post-thumb {
                width: 100%;
                height: 140px;
                border-radius: var(--radius-sm);
            }

            .community-cta {
                flex-direction: column;
                text-align: center;
                padding: 24px 20px;
            }

            .fixed-bar {
                padding: 8px 16px;
                gap: 10px;
            }

            .fixed-bar-text {
                font-size: 0.8rem;
            }

            .fixed-bar-btn {
                padding: 8px 16px;
                font-size: 0.78rem;
            }
        }

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

            .community-features {
                grid-template-columns: 1fr;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .community-h1 {
                font-size: 1.3rem;
            }

            .community-intro {
                font-size: 0.92rem;
            }

            .post-title {
                font-size: 0.92rem;
            }

            .sidebar-card {
                padding: 14px;
            }

            .community-cta {
                border-radius: var(--radius);
            }

            .cta-title {
                font-size: 1.1rem;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #2563EB;
            --primary-hover: #1D4ED8;
            --accent: #F97316;
            --accent-hover: #EA580C;
            --bg: #F8FAFC;
            --surface: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --text-weak: #64748B;
            --border: #E2E8F0;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.12);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --nav-height: 64px;
            --fixed-bar-height: 64px;
        }
        :root {
            --fixed-bar-height: 60px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-weight: 400;
            margin: 0;
            padding-bottom: var(--fixed-bar-height);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition);
        }
        input {
            font-family: inherit;
            outline: none;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text);
            letter-spacing: -0.02em;
        }
        .logo-link:hover {
            color: var(--primary);
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), #3B82F6);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            flex-shrink: 0;
        }
        .logo-mark svg {
            width: 20px;
            height: 20px;
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-wrap {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0 16px;
            height: 40px;
            width: 220px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .search-wrap:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }
        .search-wrap input {
            border: none;
            background: transparent;
            font-size: 0.9rem;
            padding: 0 8px;
            flex: 1;
            min-width: 0;
            color: var(--text);
        }
        .search-wrap input::placeholder {
            color: var(--text-weak);
        }
        .search-wrap svg {
            width: 18px;
            height: 18px;
            color: var(--text-weak);
            flex-shrink: 0;
        }
        .login-btn {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            border: 1px solid var(--border);
            background: #fff;
            transition: all var(--transition);
        }
        .login-btn:hover {
            border-color: var(--primary);
            background: #EFF6FF;
            color: var(--primary-hover);
        }
        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            background: #fff;
            transition: all var(--transition);
        }
        .hamburger svg {
            width: 22px;
            height: 22px;
            color: var(--text);
        }
        .hamburger:hover {
            border-color: var(--primary);
            background: #EFF6FF;
        }
        /* ===== Nav Grid ===== */
        .nav-icon-bar {
            display: flex;
            align-items: center;
            gap: 4px;
            padding-bottom: 8px;
        }
        .nav-icon-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 16px;
            border-radius: 12px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-icon-item svg {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            transition: transform var(--transition);
        }
        .nav-icon-item:hover {
            color: var(--primary);
            background: #EFF6FF;
        }
        .nav-icon-item:hover svg {
            transform: scale(1.08);
        }
        .nav-icon-item.active {
            color: var(--primary);
            background: #EFF6FF;
        }
        .nav-icon-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            border-radius: 2px;
            background: var(--primary);
        }
        /* ===== Page Header ===== */
        .page-header {
            padding: 32px 0 20px;
            border-bottom: 1px solid var(--border);
            background: var(--surface);
            margin-bottom: 28px;
        }
        .page-header-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
        }
        .page-header h1 {
            font-size: 1.85rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.35;
        }
        .page-header .h1-sub {
            font-size: 0.95rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
            margin: 0;
        }
        .badge-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }
        .badge-sm {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 600;
            background: #EFF6FF;
            color: var(--primary);
            border: 1px solid #DBEAFE;
        }
        .badge-sm.accent {
            background: #FFF7ED;
            color: var(--accent);
            border-color: #FFEDD5;
        }
        /* ===== Main Sections ===== */
        .main-section {
            padding: 20px 0 28px;
        }
        .section-title {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--text);
            margin: 0 0 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .section-title .title-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary), #3B82F6);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            flex-shrink: 0;
        }
        .section-title .title-icon svg {
            width: 16px;
            height: 16px;
        }
        /* ===== Rank Table ===== */
        .rank-list-wrap {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .rank-table-header {
            display: grid;
            grid-template-columns: 60px 1fr 120px 100px 100px 100px;
            gap: 12px;
            padding: 14px 20px;
            background: #F1F5F9;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--text-secondary);
            text-align: center;
            border-bottom: 1px solid var(--border);
        }
        .rank-table-header span:first-child {
            text-align: left;
        }
        .rank-row {
            display: grid;
            grid-template-columns: 60px 1fr 120px 100px 100px 100px;
            gap: 12px;
            padding: 16px 20px;
            align-items: center;
            border-bottom: 1px solid var(--border);
            transition: background var(--transition);
            text-align: center;
        }
        .rank-row:last-child {
            border-bottom: none;
        }
        .rank-row:hover {
            background: #F8FAFC;
        }
        .rank-number {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text);
            text-align: left;
            font-style: italic;
        }
        .rank-number.top {
            color: var(--accent);
        }
        .player-cell {
            display: flex;
            align-items: center;
            gap: 12px;
            text-align: left;
        }
        .player-avatar {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
            border: 2px solid var(--border);
        }
        .player-info {
            display: flex;
            flex-direction: column;
            min-width: 0;
        }
        .player-name {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .player-team {
            font-size: 0.78rem;
            color: var(--text-weak);
        }
        .stat-value {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .stat-value.highlight {
            color: var(--primary);
            font-weight: 700;
        }
        .stat-value.winrate {
            color: var(--accent);
            font-weight: 700;
        }
        /* ===== Stats Grid ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .stat-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 20px;
            text-align: center;
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 6px;
        }
        /* ===== Tag Cloud ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
            background: var(--surface);
            color: var(--text-secondary);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .tag-pill:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: #EFF6FF;
        }
        .tag-pill.accent-tag {
            background: #FFF7ED;
            border-color: #FFEDD5;
            color: var(--accent);
        }
        .tag-pill.primary-tag {
            background: #EFF6FF;
            border-color: #DBEAFE;
            color: var(--primary);
        }
        /* ===== Rule List ===== */
        .rule-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .rule-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 16px 18px;
        }
        .rule-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
            margin-top: 7px;
        }
        .rule-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .rule-text strong {
            color: var(--text);
            font-weight: 700;
        }
        /* ===== More Categories ===== */
        .more-cat-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 12px;
        }
        .more-cat-card {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 16px 12px;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
        }
        .more-cat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--primary);
        }
        .more-cat-card svg {
            width: 24px;
            height: 24px;
            color: var(--primary);
        }
        .more-cat-card span {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-secondary);
        }
        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .faq-item summary {
            padding: 16px 20px;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            list-style: none;
            transition: color var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--primary);
        }
        .faq-item summary .faq-icon {
            width: 20px;
            height: 20px;
            border-radius: 6px;
            background: #EFF6FF;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 800;
            flex-shrink: 0;
            transition: transform var(--transition);
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 20px 16px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        /* ===== Footer ===== */
        .footer {
            background: var(--surface);
            border-top: 1px solid var(--border);
            padding: 40px 0 32px;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 28px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text);
            margin-bottom: 12px;
        }
        .footer-desc {
            font-size: 0.86rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin: 0 0 4px;
        }
        .footer-col a {
            font-size: 0.86rem;
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            margin-top: 28px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
            font-size: 0.78rem;
            color: var(--text-weak);
        }
        /* ===== Button ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 24px;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), #3B82F6);
            transition: all var(--transition);
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary-hover), #2563EB);
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
            transform: translateY(-1px);
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 24px;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--accent), #FB923C);
            transition: all var(--transition);
            box-shadow: 0 2px 8px rgba(249, 115, 22, 0.25);
        }
        .btn-accent:hover {
            background: linear-gradient(135deg, var(--accent-hover), #F97316);
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
            transform: translateY(-1px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 10px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            background: #fff;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            background: #EFF6FF;
            color: var(--primary-hover);
        }
        /* ===== Subscribe Form ===== */
        .subscribe-wrap {
            display: flex;
            gap: 10px;
            max-width: 480px;
            flex-wrap: wrap;
        }
        .subscribe-input {
            flex: 1;
            min-width: 200px;
            padding: 11px 18px;
            border-radius: 10px;
            border: 1px solid var(--border);
            font-size: 0.9rem;
            color: var(--text);
            background: var(--surface);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .subscribe-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }
        .subscribe-input::placeholder {
            color: var(--text-weak);
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .rank-table-header,
            .rank-row {
                grid-template-columns: 50px 1fr 100px 90px 90px;
            }
            .rank-table-header span:nth-child(6),
            .rank-row .stat-value:nth-child(6) {
                display: none;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .more-cat-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .rule-list {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .search-wrap {
                display: none;
            }
            .nav-icon-bar {
                display: none;
                flex-direction: column;
                align-items: stretch;
                padding: 8px 0 12px;
                gap: 2px;
            }
            .nav-icon-bar.open {
                display: flex;
            }
            .nav-icon-item {
                padding: 12px 16px;
                border-radius: 8px;
                white-space: normal;
            }
            .nav-icon-item.active::after {
                display: none;
            }
            .page-header h1 {
                font-size: 1.45rem;
            }
            .rank-table-header,
            .rank-row {
                grid-template-columns: 40px 1fr 80px 80px;
                gap: 8px;
                padding: 12px 14px;
            }
            .rank-table-header span:nth-child(4),
            .rank-table-header span:nth-child(5),
            .rank-row .stat-value:nth-child(4),
            .rank-row .stat-value:nth-child(5) {
                display: none;
            }
            .player-avatar {
                width: 36px;
                height: 36px;
                border-radius: 8px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .more-cat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .container {
                padding: 0 16px;
            }
        }
        @media (max-width: 520px) {
            .rank-table-header,
            .rank-row {
                grid-template-columns: 36px 1fr 70px;
                gap: 6px;
                padding: 10px 10px;
                font-size: 0.78rem;
            }
            .rank-table-header span:nth-child(3),
            .rank-row .stat-value:nth-child(3) {
                display: none;
            }
            .player-cell {
                gap: 8px;
            }
            .player-avatar {
                width: 32px;
                height: 32px;
                border-radius: 6px;
            }
            .player-name {
                font-size: 0.82rem;
            }
            .player-team {
                font-size: 0.7rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-card {
                padding: 14px 10px;
            }
            .stat-number {
                font-size: 1.4rem;
            }
            .more-cat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 6px;
            }
            .page-header h1 {
                font-size: 1.25rem;
            }
            .h1-sub {
                font-size: 0.85rem;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #2563EB;
            --primary-hover: #1D4ED8;
            --accent: #F97316;
            --accent-hover: #EA580C;
            --bg: #F8FAFC;
            --surface: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #475569;
            --text-weak: #64748B;
            --border: #E2E8F0;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.12);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --nav-height: 64px;
            --fixed-bar-height: 60px;
        }

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

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-weight: 400;
            margin: 0;
            padding-bottom: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition);
        }

        input {
            font-family: inherit;
            outline: none;
        }

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

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }

        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text);
            letter-spacing: -0.02em;
        }

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

        .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), #3B82F6);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            flex-shrink: 0;
        }

        .logo-mark svg {
            width: 20px;
            height: 20px;
        }

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

        .search-wrap {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0 16px;
            height: 40px;
            width: 220px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .search-wrap:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }

        .search-wrap input {
            border: none;
            background: transparent;
            font-size: 0.9rem;
            padding: 0 8px;
            flex: 1;
            min-width: 0;
            color: var(--text);
        }

        .search-wrap input::placeholder {
            color: var(--text-weak);
        }

        .search-wrap svg {
            width: 18px;
            height: 18px;
            color: var(--text-weak);
            flex-shrink: 0;
        }

        .login-btn {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            border: 1px solid var(--border);
            background: #fff;
            transition: all var(--transition);
        }

        .login-btn:hover {
            border-color: var(--primary);
            background: #EFF6FF;
            color: var(--primary-hover);
        }

        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            background: #fff;
            transition: all var(--transition);
        }

        .hamburger svg {
            width: 22px;
            height: 22px;
            color: var(--text);
        }

        .hamburger:hover {
            border-color: var(--primary);
            background: #EFF6FF;
        }

        /* ===== Nav Grid ===== */
        .nav-icon-bar {
            display: flex;
            align-items: center;
            gap: 4px;
            padding-bottom: 8px;
        }

        .nav-icon-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 16px;
            border-radius: 12px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-icon-item svg {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            transition: transform var(--transition);
        }

        .nav-icon-item:hover {
            color: var(--primary);
            background: #EFF6FF;
        }

        .nav-icon-item:hover svg {
            transform: scale(1.08);
        }

        .nav-icon-item.active {
            color: var(--primary);
            background: #EFF6FF;
        }

        .nav-icon-item.active::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 999px;
        }

        /* ===== 分类页紧凑 H1 区 ===== */
        .category-hero {
            padding: 32px 0 24px;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            color: var(--text-weak);
            margin-bottom: 12px;
        }

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

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

        .breadcrumb span {
            color: var(--text-weak);
        }

        .category-hero h1 {
            font-size: 1.85rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.02em;
            margin: 0 0 10px 0;
            line-height: 1.3;
        }

        .category-hero .lead {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.75;
            margin: 0;
        }

        /* ===== 下载列表主体 ===== */
        .download-list-section {
            padding: 32px 0;
        }

        .download-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .download-card {
            display: flex;
            gap: 20px;
            padding: 20px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }

        .download-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: #CBD5E1;
        }

        .download-card-img {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg);
        }

        .download-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .download-card-body {
            flex: 1;
            min-width: 0;
        }

        .download-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 6px 0;
        }

        .download-card-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0 0 8px 0;
            line-height: 1.6;
        }

        .download-card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.78rem;
            color: var(--text-weak);
        }

        .download-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .download-card-action {
            display: flex;
            align-items: center;
            flex-shrink: 0;
        }

        .btn-download {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            font-size: 0.88rem;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-download:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: scale(1.03);
        }

        .btn-download svg {
            width: 16px;
            height: 16px;
        }

        .view-more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition);
            margin-top: 16px;
        }

        .view-more-link:hover {
            color: var(--primary-hover);
            gap: 10px;
        }

        /* ===== 热门工具 ===== */
        .hot-tools-section {
            padding: 40px 0;
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-title {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.01em;
            margin: 0 0 20px 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .section-title .title-bar {
            width: 4px;
            height: 24px;
            background: var(--primary);
            border-radius: 999px;
            flex-shrink: 0;
        }

        .hot-tools-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 16px;
        }

        .tool-card {
            padding: 18px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: all var(--transition);
        }

        .tool-card:hover {
            background: #fff;
            box-shadow: var(--shadow);
            transform: translateY(-2px);
            border-color: #CBD5E1;
        }

        .tool-card h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 6px 0;
        }

        .tool-card p {
            font-size: 0.82rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== 系统要求 ===== */
        .sys-req-section {
            padding: 40px 0;
        }

        .sys-req-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .sys-req-card {
            padding: 24px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
        }

        .sys-req-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 12px 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sys-req-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .sys-req-card li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            padding: 6px 0;
            border-bottom: 1px dashed var(--border);
            line-height: 1.6;
        }

        .sys-req-card li:last-child {
            border-bottom: none;
        }

        .sys-req-card li svg {
            width: 16px;
            height: 16px;
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 3px;
        }

        /* ===== 版本更新 ===== */
        .changelog-section {
            padding: 40px 0;
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .timeline {
            position: relative;
            padding-left: 28px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 6px;
            bottom: 6px;
            width: 2px;
            background: var(--border);
            border-radius: 999px;
        }

        .timeline-item {
            position: relative;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -24px;
            top: 8px;
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
            border: 3px solid #DBEAFE;
        }

        .timeline-item .version-tag {
            display: inline-block;
            padding: 3px 12px;
            background: #EFF6FF;
            color: var(--primary);
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .timeline-item h5 {
            font-size: 0.95rem;
            font-weight: 700;
            margin: 0 0 4px 0;
            color: var(--text);
        }

        .timeline-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 40px 0;
        }

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

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

        .faq-item:hover {
            box-shadow: var(--shadow);
        }

        .faq-item summary {
            padding: 18px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: color var(--transition);
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

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

        .faq-item summary .faq-icon {
            width: 20px;
            height: 20px;
            color: var(--text-weak);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

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

        .faq-item .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== 订阅通知 ===== */
        .subscribe-section {
            padding: 40px 0;
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .subscribe-box {
            max-width: 560px;
            margin: 0 auto;
            text-align: center;
        }

        .subscribe-box h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 8px 0;
        }

        .subscribe-box p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0 0 18px 0;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 220px;
            padding: 12px 18px;
            border: 1px solid var(--border);
            border-radius: 999px;
            font-size: 0.88rem;
            background: var(--bg);
            transition: all var(--transition);
        }

        .subscribe-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }

        .subscribe-form button {
            padding: 12px 24px;
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            font-size: 0.88rem;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition);
        }

        .subscribe-form button:hover {
            background: var(--primary-hover);
            transform: scale(1.03);
        }

        /* ===== 更多分类 ===== */
        .more-categories-section {
            padding: 40px 0;
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 14px;
        }

        .category-entry {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: all var(--transition);
        }

        .category-entry:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
            border-color: #CBD5E1;
        }

        .category-entry svg {
            width: 22px;
            height: 22px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .category-entry span {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text);
        }

        /* ===== Footer ===== */
        .footer {
            background: #0F172A;
            color: #E2E8F0;
            padding: 48px 0 24px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand .logo-mark {
            background: linear-gradient(135deg, var(--primary), #3B82F6);
        }

        .footer-desc {
            font-size: 0.86rem;
            color: #94A3B8;
            line-height: 1.7;
            margin: 0;
            max-width: 380px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px 0;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: #94A3B8;
            padding: 5px 0;
            transition: color var(--transition);
        }

        .footer-col a:hover {
            color: #60A5FA;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.78rem;
            color: #64748B;
            padding-top: 20px;
            border-top: 1px solid #1E293B;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .search-wrap {
                width: 160px;
            }

            .sys-req-grid {
                grid-template-columns: 1fr;
            }

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

        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }

            .search-wrap {
                display: none;
            }

            .login-btn {
                display: none;
            }

            .nav-icon-bar {
                display: none;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding-bottom: 12px;
            }

            .nav-icon-bar.open {
                display: flex;
            }

            .nav-icon-item {
                justify-content: flex-start;
                padding: 14px 16px;
                border-radius: 10px;
            }

            .nav-icon-item.active::after {
                display: none;
            }

            .category-hero h1 {
                font-size: 1.5rem;
            }

            .download-card {
                flex-direction: column;
                gap: 14px;
            }

            .download-card-img {
                width: 100%;
                height: 140px;
            }

            .download-card-action {
                align-self: flex-start;
            }

            .hot-tools-grid {
                grid-template-columns: 1fr;
            }

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

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

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

            .category-hero {
                padding: 24px 0 16px;
            }

            .category-hero h1 {
                font-size: 1.3rem;
            }

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

            .download-card {
                padding: 16px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form input {
                min-width: auto;
                width: 100%;
            }
        }