/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --clr-primary: #0b1120;
            --clr-primary-light: #141c2e;
            --clr-accent: #f59e0b;
            --clr-accent-hover: #d97706;
            --clr-accent-dim: #f59e0b33;
            --clr-red: #dc2626;
            --clr-red-hover: #b91c1c;
            --clr-red-dim: #dc262622;
            --clr-bg: #080d18;
            --clr-surface: #0f172a;
            --clr-surface-light: #1e293b;
            --clr-border: #1e293b;
            --clr-border-light: #334155;
            --clr-text: #f1f5f9;
            --clr-text-muted: #94a3b8;
            --clr-text-dim: #64748b;
            --clr-white: #ffffff;
            --clr-black: #000000;
            --clr-success: #10b981;
            --clr-info: #3b82f6;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(245, 158, 11, 0.15);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
            --nav-gap: 32px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.6;
            color: var(--clr-text);
            background: var(--clr-bg);
            min-height: 100vh;
        }

        a {
            color: var(--clr-accent);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--clr-accent-hover);
        }
        a:focus-visible {
            outline: 2px solid var(--clr-accent);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        button:focus-visible {
            outline: 2px solid var(--clr-accent);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ===== 工具类 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-padding {
            padding: 80px 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--clr-white);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--clr-text-muted);
            margin-bottom: 48px;
            max-width: 640px;
        }

        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 24px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            background: var(--clr-accent-dim);
            color: var(--clr-accent);
            border: 1px solid rgba(245, 158, 11, 0.2);
        }
        .badge-red {
            background: var(--clr-red-dim);
            color: var(--clr-red);
            border-color: rgba(220, 38, 38, 0.2);
        }
        .badge-info {
            background: rgba(59, 130, 246, 0.15);
            color: var(--clr-info);
            border-color: rgba(59, 130, 246, 0.2);
        }
        .badge-success {
            background: rgba(16, 185, 129, 0.15);
            color: var(--clr-success);
            border-color: rgba(16, 185, 129, 0.2);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 28px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 1px solid transparent;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--clr-accent);
            color: var(--clr-black);
            border-color: var(--clr-accent);
        }
        .btn-primary:hover {
            background: var(--clr-accent-hover);
            border-color: var(--clr-accent-hover);
            color: var(--clr-black);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            color: var(--clr-text);
            border-color: var(--clr-border-light);
        }
        .btn-outline:hover {
            border-color: var(--clr-accent);
            color: var(--clr-accent);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-red {
            background: var(--clr-red);
            color: var(--clr-white);
            border-color: var(--clr-red);
        }
        .btn-red:hover {
            background: var(--clr-red-hover);
            border-color: var(--clr-red-hover);
            color: var(--clr-white);
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(220, 38, 38, 0.25);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
        }

        .text-accent {
            color: var(--clr-accent);
        }
        .text-red {
            color: var(--clr-red);
        }
        .text-muted {
            color: var(--clr-text-muted);
        }
        .text-dim {
            color: var(--clr-text-dim);
        }
        .text-white {
            color: var(--clr-white);
        }
        .fw-700 {
            font-weight: 700;
        }
        .fw-600 {
            font-weight: 600;
        }
        .text-center {
            text-align: center;
        }

        /* ===== 分隔线 ===== */
        .divider {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--clr-accent), transparent);
            border-radius: 4px;
            margin: 16px 0 24px 0;
        }
        .divider.center {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(11, 17, 32, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(30, 41, 59, 0.5);
            transition: background var(--transition), border-color var(--transition);
        }
        .site-header.scrolled {
            background: rgba(8, 13, 24, 0.95);
            border-bottom-color: var(--clr-border);
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: 48px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--clr-white);
            letter-spacing: -0.02em;
        }
        .logo i {
            color: var(--clr-accent);
            font-size: 1.5rem;
        }
        .logo:hover {
            color: var(--clr-white);
        }
        .logo span {
            background: linear-gradient(135deg, var(--clr-accent), #fbbf24);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: var(--nav-gap);
        }
        .main-nav a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--clr-text-muted);
            padding: 6px 0;
            position: relative;
            transition: color var(--transition);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--clr-accent);
            border-radius: 2px;
            transition: width var(--transition);
        }
        .main-nav a:hover {
            color: var(--clr-text);
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .main-nav a.active {
            color: var(--clr-accent);
        }
        .main-nav a.active::after {
            width: 100%;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .header-right .btn i {
            font-size: 0.9rem;
        }

        .search-toggle {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--clr-text-muted);
            background: var(--clr-surface-light);
            border: 1px solid var(--clr-border);
            transition: all var(--transition);
            font-size: 1rem;
        }
        .search-toggle:hover {
            color: var(--clr-accent);
            border-color: var(--clr-accent);
            background: var(--clr-accent-dim);
        }

        /* 移动端汉堡 */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 4px;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--clr-text);
            border-radius: 4px;
            transition: all var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* 移动端菜单面板 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(8, 13, 24, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 40px 24px;
            flex-direction: column;
            gap: 24px;
            z-index: 999;
            overflow-y: auto;
            opacity: 0;
            transform: translateY(-12px);
            transition: opacity 0.3s ease, transform 0.3s ease;
            pointer-events: none;
        }
        .mobile-menu.open {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
            display: flex;
        }
        .mobile-menu a {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--clr-text-muted);
            padding: 12px 0;
            border-bottom: 1px solid rgba(30, 41, 59, 0.4);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .mobile-menu a i {
            width: 24px;
            color: var(--clr-accent);
        }
        .mobile-menu a.active {
            color: var(--clr-accent);
        }
        .mobile-menu .btn {
            margin-top: 16px;
            justify-content: center;
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            padding: 120px 0 80px;
            background: var(--clr-primary);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.35;
            border-radius: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(11, 17, 32, 0.6) 0%, rgba(8, 13, 24, 0.9) 70%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .hero-content .badge {
            margin-bottom: 20px;
        }
        .hero-content h1 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--clr-white);
            letter-spacing: -0.03em;
            margin-bottom: 20px;
        }
        .hero-content h1 .highlight {
            background: linear-gradient(135deg, var(--clr-accent), #fbbf24);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-content p {
            font-size: 1.1rem;
            color: var(--clr-text-muted);
            max-width: 480px;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .hero-visual {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .hero-stat {
            background: rgba(15, 23, 42, 0.7);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(30, 41, 59, 0.5);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            transition: all var(--transition);
        }
        .hero-stat:hover {
            border-color: var(--clr-accent-dim);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }
        .hero-stat .number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--clr-accent);
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: 0.85rem;
            color: var(--clr-text-muted);
            margin-top: 4px;
        }
        .hero-stat .trend {
            font-size: 0.75rem;
            color: var(--clr-success);
            display: flex;
            align-items: center;
            gap: 4px;
            margin-top: 4px;
        }

        .hero-feature-card {
            background: rgba(15, 23, 42, 0.6);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(30, 41, 59, 0.4);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: all var(--transition);
        }
        .hero-feature-card:hover {
            border-color: rgba(245, 158, 11, 0.3);
            transform: translateX(4px);
        }
        .hero-feature-card .icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: var(--clr-accent-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--clr-accent);
            flex-shrink: 0;
        }
        .hero-feature-card .info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--clr-white);
        }
        .hero-feature-card .info p {
            font-size: 0.8rem;
            color: var(--clr-text-muted);
            margin: 0;
        }

        /* ===== 关于/核心说明 ===== */
        .about-section {
            background: var(--clr-surface);
            position: relative;
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .about-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
        }
        .about-image img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }
        .about-image .about-tag {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(8, 13, 24, 0.8);
            backdrop-filter: blur(8px);
            padding: 12px 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--clr-border);
        }
        .about-image .about-tag span {
            color: var(--clr-accent);
            font-weight: 700;
            font-size: 1.1rem;
        }
        .about-image .about-tag small {
            color: var(--clr-text-muted);
            font-size: 0.8rem;
            display: block;
        }
        .about-text h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--clr-white);
            letter-spacing: -0.02em;
        }
        .about-text p {
            color: var(--clr-text-muted);
            margin-bottom: 16px;
            line-height: 1.8;
        }
        .about-features {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 24px;
        }
        .about-features li {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--clr-text);
            font-size: 0.95rem;
        }
        .about-features li i {
            color: var(--clr-accent);
            font-size: 1rem;
            width: 20px;
        }

        /* ===== 分类入口 ===== */
        .category-section {
            background: var(--clr-bg);
        }
        .category-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .category-card {
            background: var(--clr-surface);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--clr-accent), transparent);
            opacity: 0;
            transition: opacity var(--transition);
        }
        .category-card:hover {
            border-color: rgba(245, 158, 11, 0.3);
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .category-card:hover::before {
            opacity: 1;
        }
        .category-card .icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: var(--clr-accent-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--clr-accent);
            margin-bottom: 16px;
        }
        .category-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--clr-white);
            margin-bottom: 8px;
        }
        .category-card p {
            font-size: 0.9rem;
            color: var(--clr-text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .category-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid var(--clr-border);
        }
        .category-card .card-footer .tag-group {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .category-card .card-footer .tag-group .badge {
            font-size: 0.7rem;
            padding: 2px 10px;
        }
        .category-card .card-footer .arrow {
            color: var(--clr-accent);
            font-size: 1.1rem;
            transition: transform var(--transition);
        }
        .category-card:hover .card-footer .arrow {
            transform: translateX(4px);
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: var(--clr-surface);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.03), transparent 70%);
            pointer-events: none;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 20px;
            background: rgba(15, 23, 42, 0.5);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-lg);
            transition: all var(--transition);
        }
        .stat-item:hover {
            border-color: var(--clr-accent-dim);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
        }
        .stat-item .stat-icon {
            font-size: 2rem;
            color: var(--clr-accent);
            margin-bottom: 12px;
        }
        .stat-item .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--clr-white);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--clr-text-muted);
            margin-top: 6px;
        }
        .stat-item .stat-trend {
            font-size: 0.8rem;
            color: var(--clr-success);
            margin-top: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 4px;
        }

        /* ===== 最新资讯 / CMS 列表 ===== */
        .news-section {
            background: var(--clr-bg);
        }
        .news-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .news-card {
            background: var(--clr-surface);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            border-color: rgba(245, 158, 11, 0.25);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .news-card .news-thumb {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .news-card .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-card:hover .news-thumb img {
            transform: scale(1.05);
        }
        .news-card .news-thumb .news-badge {
            position: absolute;
            top: 12px;
            left: 12px;
        }
        .news-card .news-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .news-body .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--clr-text-dim);
            margin-bottom: 8px;
        }
        .news-card .news-body .news-meta i {
            margin-right: 4px;
        }
        .news-card .news-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--clr-white);
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .news-body p {
            font-size: 0.9rem;
            color: var(--clr-text-muted);
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .news-body .news-link {
            margin-top: 16px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--clr-accent);
            display: flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .news-card .news-body .news-link:hover {
            gap: 10px;
        }

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--clr-surface);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--clr-border);
            color: var(--clr-text-dim);
        }
        .news-empty i {
            font-size: 2.5rem;
            margin-bottom: 16px;
            color: var(--clr-text-dim);
        }

        /* ===== 特色服务 ===== */
        .features-section {
            background: var(--clr-surface);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: rgba(15, 23, 42, 0.4);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--clr-accent), transparent);
            opacity: 0;
            transition: opacity var(--transition);
        }
        .feature-card:hover {
            border-color: rgba(245, 158, 11, 0.2);
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .feature-card:hover::after {
            opacity: 1;
        }
        .feature-card .f-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--clr-accent-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--clr-accent);
            margin: 0 auto 16px;
            transition: all var(--transition);
        }
        .feature-card:hover .f-icon {
            background: var(--clr-accent);
            color: var(--clr-black);
            transform: scale(1.05);
        }
        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--clr-white);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--clr-text-muted);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--clr-bg);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--clr-surface);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(245, 158, 11, 0.15);
        }
        .faq-item.active {
            border-color: var(--clr-accent-dim);
        }
        .faq-question {
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            color: var(--clr-text);
            font-size: 1rem;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--clr-accent);
        }
        .faq-question .faq-icon {
            font-size: 1.1rem;
            color: var(--clr-accent);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--clr-text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--clr-surface);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.08;
            pointer-events: none;
        }
        .cta-box {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 72px 40px;
            background: linear-gradient(135deg, rgba(245, 158, 11, 0.06), rgba(220, 38, 38, 0.04));
            border: 1px solid rgba(245, 158, 11, 0.15);
            border-radius: var(--radius-xl);
            max-width: 900px;
            margin: 0 auto;
        }
        .cta-box h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--clr-white);
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }
        .cta-box p {
            font-size: 1.05rem;
            color: var(--clr-text-muted);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-box .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--clr-primary);
            border-top: 1px solid var(--clr-border);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--clr-text-muted);
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--clr-white);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--clr-text-muted);
            transition: color var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul li a:hover {
            color: var(--clr-accent);
        }
        .footer-col ul li a i {
            font-size: 0.7rem;
        }
        .footer-bottom {
            border-top: 1px solid var(--clr-border);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom p {
            font-size: 0.82rem;
            color: var(--clr-text-dim);
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: 20px;
        }
        .footer-bottom .footer-links a {
            font-size: 0.82rem;
            color: var(--clr-text-dim);
            transition: color var(--transition);
        }
        .footer-bottom .footer-links a:hover {
            color: var(--clr-accent);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--clr-border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--clr-text-muted);
            font-size: 0.95rem;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            border-color: var(--clr-accent);
            color: var(--clr-accent);
            background: var(--clr-accent-dim);
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-content h1 {
                font-size: 2.6rem;
            }
            .about-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
                --nav-gap: 20px;
            }
            .section-padding {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }

            .main-nav {
                display: none;
            }
            .header-right .btn {
                display: none;
            }
            .hamburger {
                display: flex;
            }

            .hero {
                padding: 100px 0 60px;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-content p {
                font-size: 1rem;
            }
            .hero-stats {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .hero-stat {
                padding: 16px;
            }
            .hero-stat .number {
                font-size: 1.4rem;
            }

            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-item {
                padding: 24px 16px;
            }
            .stat-item .stat-number {
                font-size: 1.8rem;
            }

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

            .cta-box {
                padding: 40px 24px;
            }
            .cta-box h2 {
                font-size: 1.6rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom .footer-links {
                justify-content: center;
            }
            .footer-social {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-stat .number {
                font-size: 1.2rem;
            }
            .hero-stat {
                padding: 12px 16px;
            }
            .hero-feature-card {
                padding: 14px 16px;
                flex-direction: column;
                text-align: center;
            }
            .hero-feature-card .icon {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item .stat-number {
                font-size: 1.5rem;
            }
            .news-card .news-thumb {
                height: 160px;
            }
            .news-card .news-body {
                padding: 16px 18px 20px;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .cta-box h2 {
                font-size: 1.3rem;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-answer {
                font-size: 0.85rem;
            }
            .about-image img {
                height: 240px;
            }
            .section-title {
                font-size: 1.4rem;
            }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #0f0e17;
            --primary-light: #1a1a2e;
            --secondary: #16213e;
            --accent: #f59e0b;
            --accent-hover: #d97706;
            --accent2: #ef4444;
            --accent2-hover: #dc2626;
            --text: #f5f5f5;
            --text-light: #a0a0b0;
            --text-muted: #6b7280;
            --bg-card: rgba(255, 255, 255, 0.05);
            --bg-card-hover: rgba(255, 255, 255, 0.1);
            --border: rgba(255, 255, 255, 0.1);
            --border-light: rgba(255, 255, 255, 0.06);
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.25);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--primary);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: var(--accent);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
        }
        h1 {
            font-size: clamp(2rem, 5vw, 3.2rem);
        }
        h2 {
            font-size: clamp(1.5rem, 3.5vw, 2.4rem);
        }
        h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.6rem);
        }
        h4 {
            font-size: 1.15rem;
        }
        p {
            margin-bottom: 1rem;
            color: var(--text-light);
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 80px 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            margin-bottom: 12px;
        }
        .section-title p {
            max-width: 600px;
            margin: 0 auto;
            color: var(--text-light);
        }
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            background: var(--accent);
            color: #0f0e17;
        }
        .badge-outline {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-light);
        }
        .badge-red {
            background: var(--accent2);
            color: #fff;
        }
        .divider {
            height: 1px;
            background: var(--border);
            margin: 48px 0;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .btn-primary {
            background: var(--accent);
            color: #0f0e17;
        }
        .btn-primary:hover,
        .btn-primary:focus-visible {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
            color: #0f0e17;
        }
        .btn-outline {
            background: transparent;
            border-color: var(--border);
            color: var(--text);
        }
        .btn-outline:hover,
        .btn-outline:focus-visible {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
        }
        .btn i {
            font-size: 0.9em;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 14, 23, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-h);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .logo:hover {
            color: var(--accent);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a {
            padding: 8px 18px;
            border-radius: var(--radius-xs);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }
        .main-nav a:hover {
            color: var(--text);
            background: var(--bg-card);
        }
        .main-nav a.active {
            color: var(--accent);
            background: rgba(245, 158, 11, 0.1);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-cta .btn {
            padding: 8px 20px;
            font-size: 0.85rem;
        }
        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text);
            padding: 8px;
            background: none;
            border: none;
            cursor: pointer;
        }

        /* ===== Mobile Nav ===== */
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(15, 14, 23, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-bottom: 1px solid var(--border);
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .main-nav a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
            }
            .main-nav a.active::after {
                display: none;
            }
            .nav-cta {
                display: none;
            }
        }

        /* ===== Article Hero ===== */
        .article-hero {
            padding-top: calc(var(--header-h) + 40px);
            padding-bottom: 60px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            position: relative;
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        .article-hero .container {
            position: relative;
            z-index: 1;
        }
        .article-hero .meta-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 20px;
            margin-bottom: 20px;
        }
        .article-hero .meta-row .badge {
            font-size: 0.78rem;
        }
        .article-hero .meta-row span {
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .article-hero .meta-row i {
            margin-right: 6px;
            color: var(--accent);
            font-size: 0.8rem;
        }
        .article-hero h1 {
            max-width: 900px;
            margin-bottom: 16px;
            font-size: clamp(1.6rem, 4vw, 2.8rem);
            letter-spacing: -0.02em;
        }
        .article-hero .excerpt {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 720px;
            line-height: 1.7;
        }

        /* ===== Article Content ===== */
        .article-content-wrap {
            padding: 0 0 60px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            padding: 40px;
            line-height: 1.9;
            font-size: 1.05rem;
            color: var(--text-light);
        }
        .article-body h2,
        .article-body h3,
        .article-body h4 {
            color: var(--text);
            margin-top: 1.8em;
            margin-bottom: 0.6em;
        }
        .article-body p {
            margin-bottom: 1.2em;
            color: var(--text-light);
        }
        .article-body img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
            width: 100%;
        }
        .article-body ul,
        .article-body ol {
            margin: 16px 0;
            padding-left: 24px;
            color: var(--text-light);
        }
        .article-body ul li {
            list-style: disc;
            margin-bottom: 6px;
        }
        .article-body ol li {
            list-style: decimal;
            margin-bottom: 6px;
        }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            padding: 16px 20px;
            margin: 24px 0;
            background: rgba(245, 158, 11, 0.05);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }
        .article-body a {
            color: var(--accent);
            text-decoration: underline;
        }
        .article-body a:hover {
            color: var(--accent-hover);
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 24px;
        }
        .sidebar-card h4 {
            font-size: 1rem;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i {
            color: var(--accent);
        }
        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .sidebar-list li:last-child {
            border-bottom: none;
        }
        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.92rem;
            color: var(--text-light);
            transition: var(--transition);
        }
        .sidebar-list a:hover {
            color: var(--accent);
        }
        .sidebar-list a i {
            margin-top: 3px;
            font-size: 0.7rem;
            color: var(--accent);
            flex-shrink: 0;
        }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tags a {
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            color: var(--text-light);
            transition: var(--transition);
        }
        .sidebar-tags a:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(245, 158, 11, 0.08);
        }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--accent) 0%, #d97706 100%);
            border: none;
            color: #0f0e17;
            text-align: center;
        }
        .sidebar-cta h4 {
            color: #0f0e17;
            justify-content: center;
        }
        .sidebar-cta h4 i {
            color: #0f0e17;
        }
        .sidebar-cta p {
            color: rgba(15, 14, 23, 0.8);
            font-size: 0.9rem;
            margin-bottom: 16px;
        }
        .sidebar-cta .btn {
            background: #0f0e17;
            color: var(--accent);
            width: 100%;
        }
        .sidebar-cta .btn:hover {
            background: #1a1a2e;
            transform: translateY(-2px);
        }

        /* ===== Not Found ===== */
        .not-found-wrap {
            padding: 100px 0;
            text-align: center;
        }
        .not-found-wrap i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .not-found-wrap h2 {
            font-size: 2rem;
            margin-bottom: 12px;
        }
        .not-found-wrap p {
            color: var(--text-light);
            margin-bottom: 24px;
            font-size: 1.05rem;
        }
        .not-found-wrap .btn {
            margin-top: 8px;
        }

        /* ===== Related Section ===== */
        .related-section {
            background: var(--primary-light);
            border-top: 1px solid var(--border-light);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .related-card:hover {
            border-color: rgba(245, 158, 11, 0.3);
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
        }
        .related-card .card-img {
            height: 180px;
            overflow: hidden;
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .related-card:hover .card-img img {
            transform: scale(1.05);
        }
        .related-card .card-body {
            padding: 20px;
        }
        .related-card .card-body .badge {
            font-size: 0.7rem;
            margin-bottom: 10px;
        }
        .related-card .card-body h4 {
            font-size: 1rem;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card .card-body h4 a {
            color: var(--text);
        }
        .related-card .card-body h4 a:hover {
            color: var(--accent);
        }
        .related-card .card-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-footer {
            padding: 12px 20px;
            border-top: 1px solid var(--border-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .related-card .card-footer i {
            margin-right: 4px;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            background: var(--primary);
        }
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            transition: var(--transition);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: rgba(245, 158, 11, 0.2);
        }
        .faq-item .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: var(--text);
            font-size: 1rem;
        }
        .faq-item .faq-q i {
            color: var(--accent);
            transition: var(--transition);
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            margin-top: 12px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-a {
            display: block;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            border-top: 1px solid var(--border-light);
            text-align: center;
        }
        .cta-section h2 {
            margin-bottom: 16px;
        }
        .cta-section p {
            max-width: 560px;
            margin: 0 auto 32px;
            color: var(--text-light);
            font-size: 1.05rem;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            border-top: 1px solid var(--border-light);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 0.92rem;
            color: var(--text-muted);
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-card);
            color: var(--text-light);
            font-size: 1.1rem;
            margin-right: 8px;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #0f0e17;
            border-color: var(--accent);
            transform: translateY(-2px);
        }
        .footer-col h4 {
            font-size: 1rem;
            margin-bottom: 18px;
            color: var(--text);
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .footer-col ul li a i {
            font-size: 0.6rem;
            color: var(--accent);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .footer-links {
            display: flex;
            gap: 20px;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 48px 0;
            }
            .article-hero {
                min-height: 280px;
                padding-bottom: 40px;
            }
            .article-body {
                padding: 24px;
                font-size: 1rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-links {
                justify-content: center;
            }
            .cta-buttons .btn {
                width: 100%;
            }
            .sidebar-card {
                padding: 18px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .article-hero h1 {
                font-size: 1.4rem;
            }
            .article-body {
                padding: 16px;
                font-size: 0.95rem;
            }
            .related-card .card-img {
                height: 140px;
            }
            .faq-item {
                padding: 16px 18px;
            }
            .footer-social a {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
        }

        /* ===== Focus visible ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--primary);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-muted);
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0d1117;
            --primary-light: #161b24;
            --secondary: #f59e0b;
            --secondary-hover: #d97706;
            --accent: #ef4444;
            --accent-glow: rgba(239, 68, 68, 0.35);
            --bg: #0a0e1a;
            --bg-card: rgba(22, 27, 36, 0.85);
            --bg-card-hover: rgba(30, 38, 50, 0.95);
            --text: #f1f5f9;
            --text-muted: #94a3b8;
            --text-dim: #64748b;
            --border: rgba(245, 158, 11, 0.15);
            --border-light: rgba(255, 255, 255, 0.06);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.3);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

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

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

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

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text);
        }

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(13, 17, 23, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: var(--text);
            white-space: nowrap;
        }

        .logo i {
            color: var(--secondary);
            font-size: 28px;
            filter: drop-shadow(0 0 8px rgba(245, 158, 11, 0.4));
        }

        .logo span {
            background: linear-gradient(135deg, var(--secondary), #fbbf24);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .main-nav a {
            position: relative;
            display: flex;
            align-items: center;
            padding: 8px 20px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            letter-spacing: 0.3px;
        }

        .main-nav a:hover {
            color: var(--text);
            background: rgba(255, 255, 255, 0.05);
        }

        .main-nav a.active {
            color: var(--text);
            background: rgba(245, 158, 11, 0.12);
            box-shadow: inset 0 0 0 1px rgba(245, 158, 11, 0.2);
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 20%;
            right: 20%;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
            box-shadow: 0 0 12px rgba(245, 158, 11, 0.5);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: 16px;
        }

        .nav-cta .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            background: var(--secondary);
            color: #0d1117;
            transition: all var(--transition);
            letter-spacing: 0.3px;
        }

        .nav-cta .btn-sm:hover {
            background: var(--secondary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.35);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition);
        }

        @media (max-width: 768px) {
            .main-nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(13, 17, 23, 0.98);
                backdrop-filter: blur(20px);
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-light);
                transform: translateY(-110%);
                opacity: 0;
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                pointer-events: none;
            }

            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

            .main-nav a {
                padding: 12px 16px;
                width: 100%;
                font-size: 16px;
                border-radius: var(--radius-sm);
            }

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

            .main-nav a.active {
                background: rgba(245, 158, 11, 0.15);
                border-left: 3px solid var(--secondary);
            }

            .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                width: 100%;
                justify-content: center;
            }

            .nav-cta .btn-sm {
                width: 100%;
                text-align: center;
            }

            .nav-toggle {
                display: flex;
            }

            .site-header .container {
                gap: 12px;
            }

            .logo {
                font-size: 20px;
            }

            .logo i {
                font-size: 22px;
            }
        }

        /* ===== Banner / Hero ===== */
        .page-banner {
            position: relative;
            padding: calc(var(--header-h) + 60px) 0 80px;
            background: var(--primary);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }

        .page-banner .bg-layer {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            transform: scale(1.05);
            filter: saturate(0.8) brightness(0.6);
        }

        .page-banner .overlay-glow {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(245, 158, 11, 0.12) 0%, transparent 70%),
                radial-gradient(ellipse at 80% 30%, rgba(239, 68, 68, 0.08) 0%, transparent 60%);
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .page-banner .breadcrumb {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .page-banner .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .page-banner .breadcrumb a:hover {
            color: var(--secondary);
        }

        .page-banner .breadcrumb .sep {
            color: var(--text-dim);
            font-size: 12px;
        }

        .page-banner .breadcrumb .current {
            color: var(--secondary);
            font-weight: 500;
        }

        .page-banner h1 {
            font-size: clamp(32px, 5vw, 56px);
            font-weight: 900;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #ffffff 30%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-banner .subtitle {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }

        .page-banner .meta-tags {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .page-banner .meta-tags .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 100px;
            font-size: 13px;
            color: var(--text-muted);
            transition: all var(--transition);
        }

        .page-banner .meta-tags .tag i {
            color: var(--secondary);
            font-size: 12px;
        }

        .page-banner .meta-tags .tag:hover {
            background: rgba(245, 158, 11, 0.1);
            border-color: rgba(245, 158, 11, 0.2);
            color: var(--text);
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: calc(var(--header-h) + 40px) 0 50px;
                min-height: 300px;
            }
            .page-banner .subtitle {
                font-size: 16px;
                padding: 0 8px;
            }
            .page-banner .meta-tags .tag {
                font-size: 12px;
                padding: 4px 12px;
            }
        }

        /* ===== 分类介绍 ===== */
        .section-intro {
            padding: 60px 0 40px;
            border-bottom: 1px solid var(--border-light);
        }

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

        .section-intro .text-side h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .section-intro .text-side h2 i {
            color: var(--secondary);
            margin-right: 8px;
        }

        .section-intro .text-side p {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .section-intro .stats {
            display: flex;
            gap: 32px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .section-intro .stats .stat-item {
            text-align: center;
        }

        .section-intro .stats .stat-item .num {
            font-size: 32px;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
        }

        .section-intro .stats .stat-item .label {
            font-size: 13px;
            color: var(--text-dim);
            margin-top: 4px;
        }

        .section-intro .image-side {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .section-intro .image-side img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            transition: transform 0.6s ease;
        }

        .section-intro .image-side:hover img {
            transform: scale(1.03);
        }

        .section-intro .image-side .img-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(13, 17, 23, 0.8);
            backdrop-filter: blur(8px);
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 500;
            color: var(--text);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .section-intro .image-side .img-badge i {
            color: var(--secondary);
        }

        @media (max-width: 900px) {
            .section-intro .grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .section-intro .image-side img {
                height: 240px;
            }
            .section-intro .stats {
                gap: 24px;
            }
            .section-intro .stats .stat-item .num {
                font-size: 26px;
            }
        }

        @media (max-width: 520px) {
            .section-intro {
                padding: 40px 0 30px;
            }
            .section-intro .text-side h2 {
                font-size: 22px;
            }
            .section-intro .stats {
                gap: 16px;
                justify-content: center;
            }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 64px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header .pre-title {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 12px;
            background: rgba(245, 158, 11, 0.1);
            padding: 4px 16px;
            border-radius: 100px;
            border: 1px solid rgba(245, 158, 11, 0.15);
        }

        .section-header .pre-title i {
            font-size: 10px;
        }

        .section-header h2 {
            font-size: clamp(26px, 3.5vw, 38px);
            font-weight: 800;
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 17px;
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section {
                padding: 44px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .section-header p {
                font-size: 15px;
                padding: 0 8px;
            }
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .card-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }

        .card-item:hover {
            transform: translateY(-6px);
            background: var(--bg-card-hover);
            border-color: rgba(245, 158, 11, 0.2);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(245, 158, 11, 0.1);
        }

        .card-item .card-img {
            position: relative;
            height: 200px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .card-item .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .card-item:hover .card-img img {
            transform: scale(1.08);
        }

        .card-item .card-img .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            background: rgba(239, 68, 68, 0.85);
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            color: #fff;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .card-item .card-img .card-tag i {
            font-size: 10px;
        }

        .card-item .card-img .card-duration {
            position: absolute;
            bottom: 12px;
            right: 12px;
            padding: 4px 10px;
            background: rgba(13, 17, 23, 0.75);
            backdrop-filter: blur(4px);
            border-radius: 6px;
            font-size: 12px;
            color: var(--text-muted);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .card-item .card-body {
            padding: 20px 20px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-item .card-body .card-category {
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .card-item .card-body .card-category i {
            font-size: 10px;
        }

        .card-item .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.35;
            transition: color var(--transition);
        }

        .card-item:hover .card-body h3 {
            color: var(--secondary);
        }

        .card-item .card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-item .card-body .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-dim);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
            margin-top: auto;
        }

        .card-item .card-body .card-meta i {
            margin-right: 4px;
            font-size: 12px;
        }

        .card-item .card-body .card-meta .read-more {
            color: var(--secondary);
            font-weight: 600;
            font-size: 13px;
            transition: all var(--transition);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .card-item .card-body .card-meta .read-more:hover {
            gap: 8px;
            color: var(--secondary-hover);
        }

        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .card-item .card-img {
                height: 180px;
            }
            .card-item .card-body {
                padding: 16px 16px 20px;
            }
            .card-item .card-body h3 {
                font-size: 16px;
            }
        }

        /* ===== 热门排行 ===== */
        .section-hot {
            background: var(--primary-light);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .hot-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: start;
        }

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

        .hot-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            cursor: pointer;
        }

        .hot-item:hover {
            background: var(--bg-card-hover);
            border-color: rgba(245, 158, 11, 0.15);
            transform: translateX(4px);
        }

        .hot-item .rank {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-dim);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .hot-item .rank.top {
            background: rgba(245, 158, 11, 0.15);
            color: var(--secondary);
            border-color: rgba(245, 158, 11, 0.2);
            box-shadow: 0 0 16px rgba(245, 158, 11, 0.1);
        }

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

        .hot-item .hot-info h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .hot-item .hot-info .hot-meta {
            font-size: 13px;
            color: var(--text-dim);
        }

        .hot-item .hot-info .hot-meta i {
            color: var(--secondary);
            margin-right: 4px;
            font-size: 11px;
        }

        .hot-item .hot-badge {
            flex-shrink: 0;
            padding: 4px 12px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(239, 68, 68, 0.12);
            color: var(--accent);
            border: 1px solid rgba(239, 68, 68, 0.15);
        }

        .hot-featured {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }

        .hot-featured:hover {
            border-color: rgba(245, 158, 11, 0.2);
            box-shadow: var(--shadow-sm);
        }

        .hot-featured .featured-img {
            height: 220px;
            overflow: hidden;
        }

        .hot-featured .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .hot-featured:hover .featured-img img {
            transform: scale(1.04);
        }

        .hot-featured .featured-body {
            padding: 20px 24px 24px;
        }

        .hot-featured .featured-body .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            background: rgba(245, 158, 11, 0.12);
            border: 1px solid rgba(245, 158, 11, 0.15);
            border-radius: 100px;
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 12px;
        }

        .hot-featured .featured-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .hot-featured .featured-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .hot-featured .featured-body .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border: 1px solid rgba(245, 158, 11, 0.3);
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            color: var(--secondary);
            transition: all var(--transition);
        }

        .hot-featured .featured-body .btn-outline:hover {
            background: rgba(245, 158, 11, 0.12);
            border-color: var(--secondary);
            gap: 12px;
        }

        @media (max-width: 900px) {
            .hot-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .hot-featured .featured-img {
                height: 200px;
            }
        }

        @media (max-width: 520px) {
            .hot-item {
                padding: 12px 14px;
                gap: 12px;
            }
            .hot-item .rank {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }
            .hot-item .hot-info h4 {
                font-size: 14px;
            }
            .hot-featured .featured-body {
                padding: 16px 18px 20px;
            }
            .hot-featured .featured-body h3 {
                font-size: 17px;
            }
        }

        /* ===== 标签云 ===== */
        .section-tags {
            padding: 48px 0;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .tag-cloud a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: 100px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            transition: all var(--transition);
        }

        .tag-cloud a:hover {
            background: rgba(245, 158, 11, 0.1);
            border-color: rgba(245, 158, 11, 0.2);
            color: var(--text);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.08);
        }

        .tag-cloud a i {
            color: var(--secondary);
            font-size: 12px;
        }

        .tag-cloud a .count {
            font-size: 12px;
            color: var(--text-dim);
            background: rgba(255, 255, 255, 0.05);
            padding: 0 8px;
            border-radius: 100px;
            margin-left: 4px;
        }

        @media (max-width: 640px) {
            .tag-cloud a {
                font-size: 13px;
                padding: 6px 14px;
            }
        }

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

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .faq-item:hover {
            border-color: rgba(245, 158, 11, 0.1);
        }

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: background var(--transition);
            gap: 16px;
        }

        .faq-item .faq-question:hover {
            background: rgba(255, 255, 255, 0.02);
        }

        .faq-item .faq-question .q-icon {
            color: var(--secondary);
            flex-shrink: 0;
            font-size: 14px;
        }

        .faq-item .faq-question .toggle {
            flex-shrink: 0;
            font-size: 14px;
            color: var(--text-dim);
            transition: transform var(--transition);
        }

        .faq-item.open .faq-question .toggle {
            transform: rotate(180deg);
            color: var(--secondary);
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-item .faq-answer p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        @media (max-width: 640px) {
            .faq-item .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-item .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
            .faq-item .faq-answer p {
                font-size: 14px;
            }
        }

        /* ===== CTA ===== */
        .section-cta {
            padding: 72px 0;
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }

        .section-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 60%, rgba(245, 158, 11, 0.08) 0%, transparent 70%),
                radial-gradient(ellipse at 80% 20%, rgba(239, 68, 68, 0.04) 0%, transparent 50%);
            pointer-events: none;
        }

        .section-cta .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .section-cta h2 {
            font-size: clamp(26px, 3.5vw, 38px);
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .section-cta p {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .section-cta .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: var(--secondary);
            color: #0d1117;
            font-size: 16px;
            font-weight: 700;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            letter-spacing: 0.3px;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: var(--secondary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.35);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text);
            font-size: 16px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition);
            cursor: pointer;
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(245, 158, 11, 0.2);
            transform: translateY(-2px);
        }

        @media (max-width: 640px) {
            .section-cta {
                padding: 48px 0;
            }
            .section-cta p {
                font-size: 15px;
                padding: 0 8px;
            }
            .btn-primary,
            .btn-ghost {
                width: 100%;
                justify-content: center;
                padding: 14px 24px;
                font-size: 15px;
            }
        }

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

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

        .footer-brand .logo {
            font-size: 22px;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 16px;
        }

        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 10px;
            font-size: 18px;
            color: var(--text-muted);
            transition: all var(--transition);
        }

        .footer-social a:hover {
            background: rgba(245, 158, 11, 0.1);
            border-color: rgba(245, 158, 11, 0.2);
            color: var(--secondary);
            transform: translateY(-2px);
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text);
            letter-spacing: 0.3px;
        }

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

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition);
        }

        .footer-col ul li a i {
            font-size: 10px;
            color: var(--text-dim);
            transition: color var(--transition);
        }

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

        .footer-col ul li a:hover i {
            color: var(--secondary);
            transform: translateX(2px);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
            font-size: 13px;
            color: var(--text-dim);
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-links {
            display: flex;
            gap: 20px;
        }

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

        .footer-links a:hover {
            color: var(--text-muted);
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .site-footer {
                padding: 36px 0 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-links {
                justify-content: center;
                gap: 12px;
                flex-wrap: wrap;
            }
        }

        /* ===== 实用辅助 ===== */
        .text-center {
            text-align: center;
        }

        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }

        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }

        /* ===== 加载动画 ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-in-up {
            animation: fadeInUp 0.6s ease forwards;
        }

        .fade-in-up-d1 {
            animation-delay: 0.1s;
        }
        .fade-in-up-d2 {
            animation-delay: 0.2s;
        }
        .fade-in-up-d3 {
            animation-delay: 0.3s;
        }
        .fade-in-up-d4 {
            animation-delay: 0.4s;
        }