/* roulang page: index */
:root {
            --primary: #0a4a7d;
            --primary-dark: #073457;
            --primary-light: #e8f1fa;
            --secondary: #2a9db9;
            --accent: #f59e0b;
            --accent-hover: #d97706;
            --bg: #fafcfe;
            --bg-soft: #f0f6fb;
            --surface: #ffffff;
            --text: #1a2b3c;
            --text-secondary: #4a5f73;
            --text-weak: #7a8fa3;
            --border: #dce6ef;
            --border-strong: #b8cbd9;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-xs: 0 1px 3px rgba(10, 74, 125, 0.06);
            --shadow-sm: 0 2px 8px rgba(10, 74, 125, 0.08);
            --shadow-md: 0 6px 24px rgba(10, 74, 125, 0.1);
            --shadow-lg: 0 16px 48px rgba(10, 74, 125, 0.14);
            --shadow-xl: 0 24px 64px rgba(10, 74, 125, 0.18);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-med: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

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

        .section {
            padding: 88px 0;
        }
        .section-sm {
            padding: 56px 0;
        }
        .section-tight {
            padding: 40px 0;
        }

        .section-head {
            margin-bottom: 48px;
        }
        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.2px;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 16px;
        }
        .section-head h2 {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text);
            margin: 0 0 16px;
            line-height: 1.3;
        }
        .section-head p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0;
            line-height: 1.8;
        }

        .section-head.center {
            text-align: center;
        }
        .section-head.center p {
            margin-left: auto;
            margin-right: auto;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
            letter-spacing: 0.4px;
            white-space: nowrap;
        }
        .badge.accent {
            background: #fef3e2;
            color: var(--accent-hover);
        }
        .badge.success {
            background: #e6f7ef;
            color: #0a7d4f;
        }
        .badge.info {
            background: #e8f4fb;
            color: var(--secondary);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 50px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all var(--transition-med);
            text-align: center;
            letter-spacing: 0.3px;
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(10, 74, 125, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 8px 24px rgba(10, 74, 125, 0.4);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(10, 74, 125, 0.3);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--border-strong);
        }
        .btn-secondary:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: #1a1a1a;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.35);
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            color: #fff;
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.45);
            transform: translateY(-2px);
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
        }
        .btn-light:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-sm {
            font-size: 13px;
            padding: 8px 18px;
        }
        .btn-lg {
            font-size: 16px;
            padding: 15px 36px;
        }
        .btn-block {
            width: 100%;
        }

        .card {
            background: var(--surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-med);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-strong);
            transform: translateY(-4px);
        }

        .tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
            background: var(--bg-soft);
            color: var(--text-secondary);
            letter-spacing: 0.3px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .tag:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .tag.active {
            background: var(--primary);
            color: #fff;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition-med);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: var(--header-height);
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .header-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(10, 74, 125, 0.3);
        }
        .header-logo .logo-text {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .header-logo .logo-text span {
            color: var(--primary);
        }
        .header-logo:hover .logo-text {
            color: var(--primary);
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }
        .header-nav a {
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: 50px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .header-nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .header-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .header-search {
            position: relative;
        }
        .header-search input {
            width: 180px;
            height: 40px;
            padding: 0 16px 0 38px;
            border: 1px solid var(--border);
            border-radius: 50px;
            font-size: 13.5px;
            color: var(--text);
            background: var(--bg-soft);
            transition: all var(--transition-med);
        }
        .header-search input:focus {
            outline: none;
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(10, 74, 125, 0.1);
            width: 220px;
        }
        .header-search .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-weak);
            font-size: 13px;
            pointer-events: none;
        }
        .header-mobile-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: var(--surface);
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--text);
            font-size: 18px;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .header-mobile-toggle:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
        }

        /* Mobile nav drawer */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 99;
            background: rgba(0, 0, 0, 0.4);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
        }
        .mobile-nav.open {
            display: block;
        }
        .mobile-nav-panel {
            background: var(--surface);
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            padding: 20px 24px 32px;
            box-shadow: var(--shadow-xl);
            max-height: 80vh;
            overflow-y: auto;
        }
        .mobile-nav-panel a {
            display: block;
            padding: 14px 16px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text);
            border-radius: 10px;
            transition: all var(--transition-fast);
        }
        .mobile-nav-panel a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .mobile-nav-panel a.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }
        .mobile-nav-search {
            display: flex;
            gap: 8px;
            margin-bottom: 16px;
        }
        .mobile-nav-search input {
            flex: 1;
            height: 44px;
            padding: 0 16px;
            border: 1px solid var(--border);
            border-radius: 50px;
            font-size: 14px;
            background: var(--bg-soft);
        }
        .mobile-nav-search input:focus {
            outline: none;
            border-color: var(--primary);
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: calc(100vh - var(--header-height));
            min-height: 620px;
            display: flex;
            align-items: center;
            background: var(--primary-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            filter: brightness(0.45) saturate(0.9);
            transform: scale(1.05);
            animation: heroSlowZoom 20s ease-in-out infinite alternate;
        }
        @keyframes heroSlowZoom {
            0% {
                transform: scale(1.05);
            }
            100% {
                transform: scale(1.12);
            }
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 34, 57, 0.7) 0%, rgba(10, 74, 125, 0.55) 50%, rgba(7, 34, 57, 0.85) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            color: #fff;
            max-width: 780px;
            padding: 80px 0;
        }
        .hero-content .hero-tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            color: #fff;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            padding: 8px 18px;
            border-radius: 50px;
            margin-bottom: 24px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .hero-content h1 {
            font-size: 2.9rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin: 0 0 20px;
            color: #fff;
        }
        .hero-content h1 .accent-text {
            color: #ffd166;
        }
        .hero-content .hero-desc {
            font-size: 1.08rem;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 36px;
            max-width: 640px;
        }
        .hero-cta-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-stat .stat-num {
            font-size: 1.75rem;
            font-weight: 700;
            color: #ffd166;
            letter-spacing: -0.01em;
            line-height: 1.2;
        }
        .hero-stat .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.5px;
        }

        /* Vertical cards */
        .vertical-card-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .vertical-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 3/4;
            cursor: pointer;
            transition: all var(--transition-med);
            box-shadow: var(--shadow-sm);
        }
        .vertical-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .vertical-card:hover img {
            transform: scale(1.06);
        }
        .vertical-card .card-shade {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0, 0, 0, 0.05) 30%, rgba(0, 0, 0, 0.75) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 20px;
            color: #fff;
        }
        .vertical-card .card-shade .vc-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(6px);
            margin-bottom: 10px;
            width: fit-content;
            letter-spacing: 0.3px;
        }
        .vertical-card .card-shade h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 6px;
            line-height: 1.4;
            color: #fff;
        }
        .vertical-card .card-shade p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            margin: 0;
            line-height: 1.6;
        }
        .vertical-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
        }

        /* Hot list */
        .hot-list-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .hot-item {
            display: flex;
            gap: 20px;
            padding: 20px;
            background: var(--surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-med);
            align-items: center;
        }
        .hot-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-strong);
            transform: translateY(-2px);
        }
        .hot-item .hot-rank {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            width: 52px;
            text-align: center;
            flex-shrink: 0;
            letter-spacing: -0.02em;
        }
        .hot-item .hot-rank.rank-1 {
            color: #f59e0b;
        }
        .hot-item .hot-rank.rank-2 {
            color: #94a3b8;
        }
        .hot-item .hot-rank.rank-3 {
            color: #d97706;
        }
        .hot-item .hot-info {
            flex: 1;
            min-width: 0;
        }
        .hot-item .hot-info h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .hot-item .hot-info h3 a {
            color: var(--text);
            transition: color var(--transition-fast);
        }
        .hot-item .hot-info h3 a:hover {
            color: var(--primary);
        }
        .hot-item .hot-info p {
            font-size: 13.5px;
            color: var(--text-weak);
            margin: 0 0 10px;
            line-height: 1.6;
        }
        .hot-item .hot-meta {
            display: flex;
            gap: 14px;
            font-size: 12px;
            color: var(--text-weak);
        }
        .hot-item .hot-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* Review wall */
        .review-wall {
            background: var(--bg-soft);
            border-radius: var(--radius-xl);
            padding: 64px 48px;
        }
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .review-card {
            background: var(--surface);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all var(--transition-med);
        }
        .review-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .review-card .review-stars {
            color: var(--accent);
            font-size: 14px;
            letter-spacing: 2px;
            margin-bottom: 14px;
        }
        .review-card .review-text {
            font-size: 14.5px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin: 0 0 20px;
        }
        .review-card .review-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .review-card .review-author .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            flex-shrink: 0;
        }
        .review-card .review-author .author-info {
            display: flex;
            flex-direction: column;
        }
        .review-card .review-author .author-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
        }
        .review-card .review-author .author-date {
            font-size: 12px;
            color: var(--text-weak);
        }

        /* News section */
        .news-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 32px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-list-item {
            display: flex;
            gap: 16px;
            padding: 18px 4px;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .news-list-item:hover {
            background: var(--bg-soft);
            border-radius: 8px;
            padding-left: 12px;
            padding-right: 12px;
        }
        .news-list-item .news-date {
            font-size: 13px;
            color: var(--text-weak);
            flex-shrink: 0;
            min-width: 72px;
            padding-top: 2px;
        }
        .news-list-item .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-list-item .news-content h3 {
            font-size: 15.5px;
            font-weight: 600;
            margin: 0 0 4px;
            line-height: 1.5;
        }
        .news-list-item .news-content h3 a {
            color: var(--text);
            transition: color var(--transition-fast);
        }
        .news-list-item .news-content h3 a:hover {
            color: var(--primary);
        }
        .news-list-item .news-content p {
            font-size: 13.5px;
            color: var(--text-weak);
            margin: 0;
            line-height: 1.6;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }
        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-sidebar .side-card {
            background: var(--surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-xs);
            padding: 24px;
            transition: all var(--transition-med);
        }
        .news-sidebar .side-card:hover {
            box-shadow: var(--shadow-sm);
        }
        .news-sidebar .side-card h4 {
            font-size: 15px;
            font-weight: 700;
            margin: 0 0 14px;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .news-sidebar .side-card ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .news-sidebar .side-card ul li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            font-size: 13.5px;
            line-height: 1.5;
        }
        .news-sidebar .side-card ul li:last-child {
            border-bottom: none;
        }
        .news-sidebar .side-card ul li a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .news-sidebar .side-card ul li a:hover {
            color: var(--primary);
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--secondary) 100%);
            border-radius: var(--radius-xl);
            padding: 72px 56px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 250px;
            height: 250px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 20%;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }
        .cta-content .cta-text {
            flex: 1;
            min-width: 280px;
        }
        .cta-content .cta-text h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 0 0 16px;
            letter-spacing: -0.02em;
            color: #fff;
        }
        .cta-content .cta-text p {
            font-size: 1.02rem;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.8);
            margin: 0;
            max-width: 540px;
        }
        .cta-content .cta-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            margin-bottom: 14px;
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-med);
            overflow: hidden;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--border-strong);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 15.5px;
            font-weight: 600;
            color: var(--text);
            gap: 16px;
            transition: all var(--transition-fast);
            border: none;
            background: none;
            width: 100%;
            text-align: left;
        }
        .faq-item .faq-question:hover {
            color: var(--primary);
            background: var(--bg-soft);
        }
        .faq-item .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 14px;
            color: var(--text-weak);
            transition: transform var(--transition-med);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-med);
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }
        .faq-item .faq-answer p {
            font-size: 14.5px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin: 0;
        }

        /* Scene cards */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scene-card {
            background: var(--surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-xs);
            padding: 28px;
            transition: all var(--transition-med);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .scene-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--border-strong);
        }
        .scene-card .scene-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 4px;
        }
        .scene-card .scene-icon.blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .scene-card .scene-icon.orange {
            background: #fef3e2;
            color: var(--accent-hover);
        }
        .scene-card .scene-icon.green {
            background: #e6f7ef;
            color: #0a7d4f;
        }
        .scene-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0;
            color: var(--text);
            line-height: 1.4;
        }
        .scene-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
            flex: 1;
        }
        .scene-card a {
            font-size: 13.5px;
            font-weight: 600;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition-fast);
        }
        .scene-card a:hover {
            color: var(--primary-dark);
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 64px 0 32px;
            margin-top: 0;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-brand .footer-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
        }
        .footer-brand .footer-logo span {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            margin: 0 0 20px;
            max-width: 360px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            transition: all var(--transition-fast);
        }
        .footer-social a:hover {
            background: rgba(255, 255, 255, 0.16);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* Misc */
        .text-primary {
            color: var(--primary) !important;
        }
        .text-accent {
            color: var(--accent) !important;
        }
        .mt-0 {
            margin-top: 0 !important;
        }
        .mb-0 {
            margin-bottom: 0 !important;
        }
        .gap-2 {
            gap: 8px !important;
        }
        .gap-3 {
            gap: 16px !important;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .vertical-card-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .review-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-content h1 {
                font-size: 2.4rem;
            }
            .header-nav {
                gap: 2px;
            }
            .header-nav a {
                padding: 8px 10px;
                font-size: 13.5px;
            }
            .header-search input {
                width: 140px;
            }
            .footer-inner {
                grid-template-columns: 1.5fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .container {
                padding: 0 18px;
            }
            .section {
                padding: 56px 0;
            }
            .section-sm {
                padding: 36px 0;
            }
            .header-nav {
                display: none;
            }
            .header-search {
                display: none;
            }
            .header-mobile-toggle {
                display: flex;
            }
            .header-actions .btn-secondary {
                display: none;
            }
            .hero {
                min-height: 560px;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-content .hero-desc {
                font-size: 0.98rem;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stat .stat-num {
                font-size: 1.4rem;
            }
            .vertical-card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .hot-list-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .review-wall {
                padding: 36px 20px;
                border-radius: var(--radius-lg);
            }
            .review-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .news-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .scene-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cta-section {
                padding: 48px 28px;
                border-radius: var(--radius-lg);
            }
            .cta-content {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-content .cta-text h2 {
                font-size: 1.6rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .section-head h2 {
                font-size: 1.6rem;
            }
            .section-head p {
                font-size: 0.95rem;
            }
            .btn-lg {
                font-size: 14px;
                padding: 13px 26px;
            }
            .hot-item .hot-rank {
                font-size: 1.6rem;
                width: 40px;
            }
            .news-list-item {
                flex-direction: column;
                gap: 6px;
            }
            .news-list-item .news-date {
                min-width: auto;
                padding-top: 0;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .hero {
                min-height: 500px;
            }
            .hero-content h1 {
                font-size: 1.7rem;
            }
            .hero-content .hero-desc {
                font-size: 0.9rem;
            }
            .hero-cta-row {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-cta-row .btn {
                width: 100%;
            }
            .hero-stats {
                gap: 18px;
            }
            .vertical-card-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .vertical-card {
                aspect-ratio: 4/3;
            }
            .hot-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 16px;
            }
            .hot-item .hot-rank {
                font-size: 1.5rem;
                width: auto;
                text-align: left;
            }
            .review-card {
                padding: 20px;
            }
            .cta-section {
                padding: 36px 20px;
            }
            .cta-content .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-content .cta-actions .btn {
                width: 100%;
            }
            .section {
                padding: 44px 0;
            }
            .section-head {
                margin-bottom: 32px;
            }
            .faq-item .faq-question {
                padding: 16px 18px;
                font-size: 14px;
            }
            .faq-item .faq-answer {
                padding: 0 18px;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
        }