/* roulang page: index */
/* ============ 设计变量 ============ */
        :root {
            --primary: #1a56db;
            --primary-dark: #143f9e;
            --primary-light: #e8f0fe;
            --primary-soft: #f0f5ff;
            --accent: #0ea5e9;
            --accent-light: #e0f2fe;
            --bg: #f8fafc;
            --bg-white: #ffffff;
            --text: #1e293b;
            --text-secondary: #475569;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --border-light: #eef2f7;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
            --shadow-md: 0 2px 8px rgba(0,0,0,0.05), 0 8px 24px rgba(0,0,0,0.06);
            --shadow-lg: 0 4px 16px rgba(0,0,0,0.06), 0 16px 48px rgba(0,0,0,0.08);
            --shadow-primary: 0 4px 16px rgba(26,86,219,0.25);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
            --section-pad: 72px;
        }

        /* ============ Reset/Base ============ */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        main {
            flex: 1;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

        a:hover, a:focus-visible {
            color: var(--primary-dark);
        }

        a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
            outline: 2.5px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        h1, h2, h3, h4, h5, h6 {
            line-height: 1.35;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 16px;
        }

        ul, ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }

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

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

        .section-sm {
            padding: 48px 0;
        }

        /* ============ Header / Nav ============ */
        .site-header {
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 0 rgba(0,0,0,0.02);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 24px;
            flex-wrap: wrap;
            padding-top: 8px;
            padding-bottom: 8px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.3px;
            white-space: nowrap;
            text-decoration: none;
            transition: opacity var(--transition);
        }

        .logo-link:hover {
            color: var(--primary);
            opacity: 0.9;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
            box-shadow: var(--shadow-primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: flex-start;
            padding-left: 16px;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }

        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

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

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 2px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 22px;
            border-radius: 10px;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            line-height: 1.5;
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-primary);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(26,86,219,0.35);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(26,86,219,0.3);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary-soft);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-1px);
        }

        .btn-ghost {
            background: transparent;
            color: var(--text-secondary);
            padding: 10px 14px;
        }

        .btn-ghost:hover {
            background: var(--bg);
            color: var(--text);
        }

        .btn-lg {
            padding: 13px 28px;
            font-size: 16px;
            border-radius: 12px;
        }

        .btn-sm {
            padding: 7px 14px;
            font-size: 13px;
            border-radius: 8px;
        }

        .btn-block {
            width: 100%;
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 24px;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 8px;
            transition: background var(--transition);
        }

        .nav-toggle:hover {
            background: var(--bg);
        }

        /* ============ Hero ============ */
        .hero {
            background: linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
            padding: 64px 0 56px;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -160px;
            right: -120px;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(26,86,219,0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -200px;
            left: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(14,165,233,0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .hero-status-bar {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 12px 20px;
            margin-bottom: 32px;
            box-shadow: var(--shadow-sm);
            font-size: 13.5px;
            color: var(--text-secondary);
            max-width: 720px;
        }

        .hero-status-bar .dot {
            width: 8px;
            height: 8px;
            background: #22c55e;
            border-radius: 50%;
            display: inline-block;
            animation: pulse-dot 2s ease-in-out infinite;
            margin-right: 8px;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34,197,94,0.4); }
            50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(34,197,94,0.1); }
        }

        .hero-status-bar .sep {
            width: 1px;
            height: 18px;
            background: var(--border);
            flex-shrink: 0;
        }

        .hero-status-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .hero-status-item strong {
            color: var(--primary);
            font-weight: 700;
        }

        .hero-content {
            max-width: 780px;
        }

        .hero-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .hero h1 {
            font-size: clamp(28px, 4.5vw, 44px);
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text);
            margin-bottom: 20px;
            line-height: 1.3;
        }

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

        .hero-desc {
            font-size: 16.5px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 720px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }

        .hero-icon-matrix {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
        }

        .hero-icon-item {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 6px;
            padding: 14px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            min-width: 140px;
            flex: 1;
            max-width: 180px;
            transition: all var(--transition);
        }

        .hero-icon-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--border);
        }

        .hero-icon-item i {
            font-size: 20px;
            color: var(--primary);
            background: var(--primary-soft);
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            margin-bottom: 4px;
        }

        .hero-icon-item span {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
        }

        .hero-icon-item small {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ============ Section Headers ============ */
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }

        .section-head .left h2 {
            font-size: clamp(22px, 3vw, 30px);
            font-weight: 800;
            letter-spacing: -0.3px;
            margin-bottom: 8px;
            color: var(--text);
        }

        .section-head .left p {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 560px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .section-head .right a {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .section-head .right a:hover {
            color: var(--primary-dark);
        }

        /* ============ Collection Grid ============ */
        .collections-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .collection-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .collection-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .collection-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--border);
        }

        .collection-card .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }

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

        .collection-card:hover .card-img img {
            transform: scale(1.05);
        }

        .collection-card .card-img .badge-overlay {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255,255,255,0.95);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.3px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
        }

        .collection-card .card-body {
            padding: 18px 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .collection-card .card-body h3 {
            font-size: 16.5px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
            letter-spacing: -0.2px;
        }

        .collection-card .card-body p {
            font-size: 13.5px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 14px;
            flex: 1;
        }

        .collection-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12.5px;
            color: var(--text-light);
        }

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

        /* ============ Recommendation Section ============ */
        .recommend-section {
            background: var(--bg);
        }

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

        .recommend-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .recommend-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--border);
        }

        .recommend-card .card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }

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

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

        .recommend-card .card-img .tag {
            position: absolute;
            top: 12px;
            right: 12px;
            background: var(--primary);
            color: #fff;
            font-size: 11px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }

        .recommend-card .card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .recommend-card .card-body h3 {
            font-size: 15.5px;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .recommend-card .card-body h3 a {
            color: var(--text);
            transition: color var(--transition);
        }

        .recommend-card .card-body h3 a:hover {
            color: var(--primary);
        }

        .recommend-card .card-body .excerpt {
            font-size: 13.5px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 12px;
            flex: 1;
        }

        .recommend-card .card-body .meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12.5px;
            color: var(--text-light);
        }

        .recommend-card .card-body .meta i {
            margin-right: 3px;
        }

        /* ============ News Section ============ */
        .news-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
        }

        .news-list .news-item {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition);
            align-items: flex-start;
        }

        .news-list .news-item:first-child {
            padding-top: 0;
        }

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

        .news-list .news-item .news-num {
            width: 32px;
            height: 32px;
            background: var(--primary-soft);
            color: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 12.5px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .news-list .news-item .news-num.hot {
            background: #fef2f2;
            color: #ef4444;
        }

        .news-list .news-item .news-content h4 {
            font-size: 15.5px;
            font-weight: 600;
            margin-bottom: 4px;
            line-height: 1.5;
        }

        .news-list .news-item .news-content h4 a {
            color: var(--text);
            transition: color var(--transition);
        }

        .news-list .news-item .news-content h4 a:hover {
            color: var(--primary);
        }

        .news-list .news-item .news-content .news-excerpt {
            font-size: 13.5px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 6px;
        }

        .news-list .news-item .news-content .news-meta {
            font-size: 12px;
            color: var(--text-light);
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .sidebar-card {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 20px;
            border: 1px solid var(--border-light);
        }

        .sidebar-card h3 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h3 i {
            color: var(--primary);
        }

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

        .sidebar-tag-list a {
            display: inline-block;
            background: var(--bg-white);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 12.5px;
            padding: 5px 12px;
            border-radius: 20px;
            transition: all var(--transition);
        }

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

        .sidebar-hot-list li {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 13.5px;
        }

        .sidebar-hot-list li:last-child {
            border-bottom: none;
        }

        .sidebar-hot-list li .rank {
            width: 22px;
            height: 22px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 11px;
            flex-shrink: 0;
        }

        .sidebar-hot-list li .rank.r1 { background: #fef2f2; color: #ef4444; }
        .sidebar-hot-list li .rank.r2 { background: #fff7ed; color: #f97316; }
        .sidebar-hot-list li .rank.r3 { background: #fefce8; color: #eab308; }
        .sidebar-hot-list li .rank.rn { background: var(--primary-soft); color: var(--text-muted); }

        .sidebar-hot-list li a {
            color: var(--text-secondary);
            transition: color var(--transition);
            flex: 1;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .sidebar-hot-list li a:hover {
            color: var(--primary);
        }

        .sidebar-hot-list li .count {
            font-size: 11.5px;
            color: var(--text-light);
            white-space: nowrap;
        }

        /* ============ Share/Save CTA Section ============ */
        .share-section {
            background: var(--bg);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .share-section .share-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.06;
            pointer-events: none;
        }

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

        .share-panel {
            background: linear-gradient(135deg, #ffffff 0%, #f0f5ff 100%);
            border-radius: var(--radius-xl);
            padding: 48px 44px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-lg);
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 36px;
            align-items: center;
        }

        .share-panel .share-text h2 {
            font-size: clamp(22px, 3vw, 28px);
            font-weight: 800;
            letter-spacing: -0.3px;
            margin-bottom: 12px;
            color: var(--text);
        }

        .share-panel .share-text p {
            font-size: 15.5px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 24px;
        }

        .share-panel .share-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .share-panel .share-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
        }

        .share-stat-box {
            background: rgba(255,255,255,0.85);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

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

        .share-stat-box .num {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            display: block;
            margin-bottom: 4px;
        }

        .share-stat-box .label {
            font-size: 12.5px;
            color: var(--text-muted);
        }

        /* ============ Footer ============ */
        .site-footer {
            background: #0f172a;
            color: #e2e8f0;
            padding: 48px 0 28px;
            margin-top: auto;
        }

        .site-footer .container {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            gap: 36px;
        }

        .site-footer .footer-brand h3 {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-footer .footer-brand p {
            color: #94a3b8;
            font-size: 13.5px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .site-footer .footer-col h4 {
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }

        .site-footer .footer-col ul li a {
            color: #94a3b8;
            font-size: 13.5px;
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .site-footer .footer-bottom {
            grid-column: 1 / -1;
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
            margin-top: 12px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12.5px;
            color: #64748b;
        }

        .site-footer .footer-bottom a {
            color: #94a3b8;
        }

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

        /* ============ Responsive ============ */
        @media (max-width: 1024px) {
            :root {
                --section-pad: 56px;
            }

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

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

            .news-layout {
                grid-template-columns: 1fr;
            }

            .news-sidebar {
                flex-direction: row;
                flex-wrap: wrap;
            }

            .sidebar-card {
                flex: 1;
                min-width: 260px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 44px;
            }

            .site-header .container {
                min-height: 60px;
                flex-wrap: nowrap;
                padding-top: 6px;
                padding-bottom: 6px;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                padding: 12px 24px;
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                z-index: 999;
            }

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

            .main-nav a {
                width: 100%;
                padding: 10px 12px;
                font-size: 15px;
            }

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

            .nav-toggle {
                display: block;
            }

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

            .nav-actions .btn-primary {
                padding: 8px 14px;
                font-size: 13.5px;
            }

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

            .hero-status-bar {
                gap: 12px;
                font-size: 12.5px;
                padding: 10px 14px;
                flex-wrap: wrap;
            }

            .hero-status-bar .sep {
                display: none;
            }

            .hero-icon-matrix {
                gap: 10px;
            }

            .hero-icon-item {
                min-width: calc(50% - 10px);
                max-width: none;
                padding: 12px 14px;
            }

            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                margin-bottom: 24px;
            }

            .collection-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .recommend-scroll {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .share-panel {
                grid-template-columns: 1fr;
                padding: 32px 22px;
                gap: 24px;
            }

            .share-panel .share-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 10px;
            }

            .share-stat-box .num {
                font-size: 20px;
            }

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

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

        @media (max-width: 520px) {
            :root {
                --section-pad: 36px;
            }

            .container {
                padding: 0 16px;
            }

            .hero h1 {
                font-size: 24px;
                letter-spacing: -0.3px;
            }

            .hero-desc {
                font-size: 14.5px;
            }

            .hero-actions {
                flex-direction: column;
            }

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

            .hero-icon-item {
                min-width: 100%;
                flex-direction: row;
                align-items: center;
                gap: 12px;
            }

            .hero-icon-item i {
                margin-bottom: 0;
            }

            .news-list .news-item {
                flex-direction: column;
                gap: 8px;
            }

            .news-list .news-item .news-num {
                width: 28px;
                height: 28px;
                font-size: 11px;
            }

            .share-panel {
                padding: 24px 16px;
                border-radius: var(--radius-lg);
            }

            .share-panel .share-stats {
                grid-template-columns: 1fr;
            }

            .share-stat-box {
                display: flex;
                align-items: center;
                gap: 12px;
                text-align: left;
                padding: 12px 16px;
            }

            .share-stat-box .num {
                font-size: 22px;
                margin-bottom: 0;
            }

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

            .nav-actions .btn-primary {
                padding: 8px 10px;
                border-radius: 8px;
            }
        }