/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #f45d2c;
            --primary-dark: #d94a1e;
            --primary-light: #ff8a5c;
            --secondary: #1e293b;
            --secondary-light: #334155;
            --accent: #fbbf24;
            --bg-body: #f8fafc;
            --bg-white: #ffffff;
            --bg-dark: #0f172a;
            --bg-card: #ffffff;
            --text-dark: #0f172a;
            --text-body: #1e293b;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --text-white: #ffffff;
            --border-color: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.10), 0 4px 16px rgba(0,0,0,0.06);
            --shadow-xl: 0 24px 60px rgba(0,0,0,0.14);
            --shadow-primary: 0 4px 20px rgba(244,93,44,0.30);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container-max: 1200px;
            --header-height: 76px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-body);
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-dark); }
        h1 { font-size: 2.75rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.375rem; }
        h4 { font-size: 1.125rem; }

        /* ===== Container ===== */
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container-custom { padding: 0 16px; }
        }

        /* ===== 通用板块 ===== */
        .section-padding { padding: 80px 0; }
        @media (max-width: 768px) { .section-padding { padding: 56px 0; } }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .section-title p {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-title .title-accent {
            display: inline-block;
            width: 48px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin-top: 16px;
        }
        @media (max-width: 576px) {
            .section-title h2 { font-size: 1.5rem; }
            .section-title p { font-size: 0.95rem; }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.03em;
            flex-shrink: 0;
        }
        .header-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
        }
        .header-logo .logo-text {
            background: linear-gradient(135deg, var(--text-dark), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .header-logo .logo-tag {
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--primary);
            background: rgba(244,93,44,0.10);
            padding: 2px 10px;
            border-radius: 20px;
            margin-left: 4px;
            -webkit-text-fill-color: var(--primary);
        }
        .header-search {
            flex: 1;
            max-width: 480px;
            margin: 0 24px;
            position: relative;
        }
        .header-search .search-form {
            display: flex;
            width: 100%;
        }
        .header-search .search-input {
            width: 100%;
            padding: 10px 18px;
            padding-right: 48px;
            border: 2px solid var(--border-color);
            border-radius: 50px;
            background: var(--bg-body);
            font-size: 0.95rem;
            color: var(--text-dark);
            transition: all var(--transition);
            outline: none;
        }
        .header-search .search-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(244,93,44,0.12);
            background: var(--bg-white);
        }
        .header-search .search-input::placeholder { color: var(--text-light); }
        .header-search .search-btn {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
            border: none;
        }
        .header-search .search-btn:hover { background: var(--primary-dark); transform: translateY(-50%) scale(1.04); }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .header-nav .nav-link {
            padding: 8px 18px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-body);
            border-radius: 50px;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .header-nav .nav-link:hover { color: var(--primary); background: rgba(244,93,44,0.06); }
        .header-nav .nav-link.active { color: var(--primary); background: rgba(244,93,44,0.10); }
        .header-nav .nav-link i { margin-right: 6px; font-size: 0.85rem; }
        .mobile-toggle { display: none; flex-shrink: 0; }
        .mobile-toggle button {
            width: 42px; height: 42px; border-radius: var(--radius-sm);
            background: var(--bg-body); color: var(--text-dark);
            font-size: 1.3rem; display: flex; align-items: center; justify-content: center;
            border: 1px solid var(--border-color); transition: all var(--transition);
        }
        .mobile-toggle button:hover { background: var(--border-color); }
        @media (max-width: 992px) {
            .header-search { display: none; }
            .header-nav { display: none; }
            .mobile-toggle { display: flex; }
            .site-header .container-custom { gap: 12px; }
        }
        /* 移动端菜单面板 */
        .mobile-panel {
            position: fixed; top: var(--header-height); left: 0; right: 0;
            background: var(--bg-white); border-bottom: 1px solid var(--border-color);
            padding: 20px 24px; z-index: 1040; display: none;
            box-shadow: var(--shadow-lg); max-height: calc(100vh - var(--header-height));
            overflow-y: auto;
        }
        .mobile-panel.open { display: block; }
        .mobile-panel .mobile-search { margin-bottom: 16px; }
        .mobile-panel .mobile-search .search-input {
            width: 100%; padding: 12px 18px; border: 2px solid var(--border-color);
            border-radius: 50px; font-size: 1rem; background: var(--bg-body);
        }
        .mobile-panel .mobile-search .search-input:focus { border-color: var(--primary); outline: none; }
        .mobile-panel .mobile-nav { display: flex; flex-direction: column; gap: 4px; }
        .mobile-panel .mobile-nav .nav-link {
            padding: 12px 16px; font-size: 1rem; font-weight: 600; color: var(--text-body);
            border-radius: var(--radius-sm); transition: all var(--transition);
        }
        .mobile-panel .mobile-nav .nav-link:hover { background: rgba(244,93,44,0.06); color: var(--primary); }
        .mobile-panel .mobile-nav .nav-link.active { color: var(--primary); background: rgba(244,93,44,0.10); }
        .mobile-panel .mobile-nav .nav-link i { width: 24px; text-align: center; margin-right: 10px; }

        /* ===== Hero ===== */
        .hero {
            padding-top: calc(var(--header-height) + 40px);
            padding-bottom: 80px;
            background: linear-gradient(160deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(244,93,44,0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(251,191,36,0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero .container-custom { position: relative; z-index: 1; }
        .hero-content { max-width: 780px; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            background: rgba(244,93,44,0.15);
            color: var(--primary-light);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            border: 1px solid rgba(244,93,44,0.20);
        }
        .hero-badge i { font-size: 0.75rem; }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 900;
            color: var(--text-white);
            letter-spacing: -0.03em;
            line-height: 1.15;
            margin-bottom: 20px;
        }
        .hero h1 .highlight { 
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.2rem;
            color: var(--text-light);
            max-width: 600px;
            margin-bottom: 36px;
            line-height: 1.7;
        }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero-actions .btn-primary-custom {
            padding: 14px 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            transition: all var(--transition);
            box-shadow: var(--shadow-primary);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-actions .btn-primary-custom:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(244,93,44,0.35); }
        .hero-actions .btn-outline-custom {
            padding: 14px 36px;
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255,255,255,0.20);
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-actions .btn-outline-custom:hover { border-color: var(--primary); color: var(--primary); background: rgba(244,93,44,0.08); }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.08);
        }
        .hero-stats .stat-item h3 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 2px;
        }
        .hero-stats .stat-item p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 0;
        }
        @media (max-width: 768px) {
            .hero h1 { font-size: 2.2rem; }
            .hero p { font-size: 1.05rem; }
            .hero-stats { gap: 24px; flex-wrap: wrap; }
            .hero-stats .stat-item h3 { font-size: 1.5rem; }
        }
        @media (max-width: 576px) {
            .hero h1 { font-size: 1.75rem; }
            .hero-actions { flex-direction: column; }
            .hero-actions .btn-primary-custom,
            .hero-actions .btn-outline-custom { width: 100%; justify-content: center; }
        }

        /* ===== 核心优势 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
        .feature-card .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, rgba(244,93,44,0.10), rgba(251,191,36,0.10));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 20px;
        }
        .feature-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; }
        .feature-card p { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 0; }
        @media (max-width: 992px) {
            .features-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 576px) {
            .features-grid { grid-template-columns: 1fr; }
            .feature-card { padding: 28px 20px; }
        }

        /* ===== 分类入口 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 20px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            cursor: pointer;
        }
        .category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
        .category-card .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #fff;
            margin: 0 auto 16px;
            transition: transform var(--transition);
        }
        .category-card:hover .icon-wrap { transform: scale(1.08); }
        .category-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; }
        .category-card p { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 12px; }
        .category-card .tag-count {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(244,93,44,0.08);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        @media (max-width: 992px) {
            .category-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 576px) {
            .category-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .category-card { padding: 24px 12px; }
            .category-card .icon-wrap { width: 52px; height: 52px; font-size: 1.3rem; }
        }

        /* ===== 最新资讯列表 ===== */
        .news-list { display: flex; flex-direction: column; gap: 16px; }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .news-item:hover { transform: translateX(4px); box-shadow: var(--shadow-md); border-color: transparent; }
        .news-item .news-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--border-color);
            min-width: 40px;
            line-height: 1;
            flex-shrink: 0;
        }
        .news-item .news-body { flex: 1; min-width: 0; }
        .news-item .news-body .news-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
            display: block;
            transition: color var(--transition);
        }
        .news-item .news-body .news-title:hover { color: var(--primary); }
        .news-item .news-body .news-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-body .news-meta {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-light);
        }
        .news-item .news-body .news-meta span i { margin-right: 4px; }
        .news-item .news-body .news-meta .category-tag {
            padding: 2px 12px;
            background: rgba(244,93,44,0.08);
            color: var(--primary);
            border-radius: 50px;
            font-weight: 600;
        }
        .news-empty {
            text-align: center;
            padding: 48px 20px;
            color: var(--text-muted);
            font-size: 1.05rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
        }
        .news-empty i { font-size: 2rem; display: block; margin-bottom: 12px; color: var(--border-color); }
        @media (max-width: 576px) {
            .news-item { flex-direction: column; gap: 10px; padding: 16px; }
            .news-item .news-num { display: none; }
            .news-item .news-body .news-title { font-size: 1rem; }
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: var(--bg-dark);
            position: relative;
        }
        .stats-section::before {
            content: '';
            position: absolute; inset: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            pointer-events: none;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .stats-grid .stat-card h3 {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: 4px;
            letter-spacing: -0.02em;
        }
        .stats-grid .stat-card h3 .suffix { font-size: 1.4rem; color: var(--primary); }
        .stats-grid .stat-card p {
            font-size: 1rem;
            color: var(--text-light);
            margin-bottom: 0;
        }
        @media (max-width: 768px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
            .stats-grid .stat-card h3 { font-size: 2rem; }
        }
        @media (max-width: 576px) {
            .stats-grid .stat-card h3 { font-size: 1.6rem; }
        }

        /* ===== 流程步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 48px;
            left: 16%;
            right: 16%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--border-color), var(--primary));
            opacity: 0.3;
        }
        .step-card {
            text-align: center;
            position: relative;
            z-index: 1;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 36px 24px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .step-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
        .step-card .step-num {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 1.4rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 4px 16px rgba(244,93,44,0.25);
        }
        .step-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
        .step-card p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 0; }
        @media (max-width: 992px) {
            .steps-grid { grid-template-columns: 1fr; gap: 20px; }
            .steps-grid::before { display: none; }
            .step-card { display: flex; gap: 20px; text-align: left; padding: 24px; }
            .step-card .step-num { margin: 0; flex-shrink: 0; }
        }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--primary); }
        .faq-item .faq-question {
            width: 100%;
            padding: 18px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            background: none;
            border: none;
            text-align: left;
            transition: all var(--transition);
        }
        .faq-item .faq-question:hover { color: var(--primary); }
        .faq-item .faq-question i { transition: transform var(--transition); color: var(--text-light); font-size: 0.9rem; }
        .faq-item.active .faq-question i { transform: rotate(180deg); color: var(--primary); }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-item .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(160deg, var(--secondary), var(--bg-dark));
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(244,93,44,0.12) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-content {
            text-align: center;
            position: relative;
            z-index: 1;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-content p {
            font-size: 1.1rem;
            color: var(--text-light);
            margin-bottom: 32px;
        }
        .cta-content .btn-cta {
            padding: 16px 48px;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            border: none;
            transition: all var(--transition);
            box-shadow: var(--shadow-primary);
            display: inline-flex;
            align-items: center;
            gap: 12px;
        }
        .cta-content .btn-cta:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 32px rgba(244,93,44,0.40); }
        .cta-content .cta-muted {
            margin-top: 16px;
            font-size: 0.85rem;
            color: var(--text-light);
            opacity: 0.6;
        }
        @media (max-width: 576px) {
            .cta-content h2 { font-size: 1.6rem; }
            .cta-content .btn-cta { width: 100%; justify-content: center; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 60px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .footer-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-brand .footer-logo .logo-icon {
            width: 34px; height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex; align-items: center; justify-content: center;
            color: #fff; font-size: 1rem; font-weight: 700;
        }
        .footer-brand p { font-size: 0.9rem; color: var(--text-light); max-width: 320px; line-height: 1.7; }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-light);
            transition: all var(--transition);
        }
        .footer-col ul li a:hover { color: var(--primary); padding-left: 4px; }
        .footer-col ul li a i { width: 20px; margin-right: 6px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .footer-bottom a { color: var(--text-light); }
        .footer-bottom a:hover { color: var(--primary); }
        @media (max-width: 992px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 576px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== 按钮通用 ===== */
        .btn-primary-custom, .btn-outline-custom, .btn-cta { transition: all var(--transition); }
        .btn-primary-custom:focus-visible, .btn-outline-custom:focus-visible, .btn-cta:focus-visible,
        .search-btn:focus-visible, .faq-question:focus-visible, .nav-link:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== 响应式辅助 ===== */
        @media (max-width: 768px) {
            .section-padding { padding: 48px 0; }
            .section-title { margin-bottom: 32px; }
        }
        @media (max-width: 576px) {
            .section-title h2 { font-size: 1.35rem; }
        }

        /* ===== Bootstrap 覆盖 ===== */
        .btn { border-radius: 50px; }
        .card { border-radius: var(--radius-md); border-color: var(--border-color); }
        .form-control { border-radius: var(--radius-sm); border-color: var(--border-color); }
        .form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(244,93,44,0.10); }
        .badge { border-radius: 50px; padding: 6px 14px; font-weight: 600; }

/* roulang page: article */
:root {
            --primary: #e74c3c;
            --primary-dark: #c0392b;
            --primary-light: #fadbd8;
            --secondary: #f39c12;
            --secondary-light: #fef5e7;
            --accent: #2c3e50;
            --bg-light: #f8f9fa;
            --bg-white: #ffffff;
            --text-dark: #1a1a2e;
            --text-muted: #6c757d;
            --text-light: #95a5a6;
            --border-color: #e9ecef;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; padding: 0; margin: 0; }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

        /* ===== Header & Nav ===== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-dark);
            text-decoration: none;
            letter-spacing: -0.5px;
        }
        .logo:hover { color: var(--text-dark); }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1.4rem;
            font-weight: 700;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .header-nav .nav-link {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-muted);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .header-nav .nav-link i { font-size: 0.85rem; }
        .header-nav .nav-link:hover,
        .header-nav .nav-link.active {
            background: var(--primary-light);
            color: var(--primary);
        }

        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 50px;
            padding: 0 16px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            max-width: 320px;
            width: 100%;
        }
        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(231,76,60,0.15);
        }
        .header-search input {
            border: none;
            background: transparent;
            padding: 10px 12px;
            font-size: 0.9rem;
            outline: none;
            width: 100%;
            color: var(--text-dark);
        }
        .header-search input::placeholder { color: var(--text-light); }
        .header-search button {
            border: none;
            background: transparent;
            color: var(--text-muted);
            cursor: pointer;
            padding: 8px 4px;
            transition: var(--transition);
        }
        .header-search button:hover { color: var(--primary); }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 4px 8px;
        }

        @media (max-width: 992px) {
            .header-nav { display: none; }
            .header-nav.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
                gap: 6px;
            }
            .header-nav.open .nav-link { padding: 12px 16px; }
            .nav-toggle { display: block; }
            .header-search { max-width: 200px; }
        }

        @media (max-width: 576px) {
            .header-inner { height: 64px; }
            .logo { font-size: 1.3rem; }
            .logo-icon { width: 36px; height: 36px; font-size: 1.1rem; }
            .header-search { max-width: 140px; }
            .header-search input { padding: 8px 10px; font-size: 0.8rem; }
        }

        /* ===== Page Hero ===== */
        .page-hero {
            background: linear-gradient(135deg, var(--accent) 0%, #1a1a2e 100%);
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(231,76,60,0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-hero h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .page-hero .breadcrumb-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .page-hero .breadcrumb-wrap a { color: rgba(255,255,255,0.7); }
        .page-hero .breadcrumb-wrap a:hover { color: #fff; }
        .page-hero .breadcrumb-wrap span { color: rgba(255,255,255,0.4); }

        .article-meta-hero {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 18px;
            position: relative;
            z-index: 1;
        }
        .article-meta-hero .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
            color: rgba(255,255,255,0.7);
            font-size: 0.85rem;
        }
        .article-meta-hero .meta-item i { color: var(--secondary); }
        .article-meta-hero .meta-item .badge-cat {
            background: var(--primary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        @media (max-width: 768px) {
            .page-hero { padding: 40px 0 32px; }
            .page-hero h1 { font-size: 1.6rem; }
            .article-meta-hero { gap: 10px; }
        }

        /* ===== Main Content ===== */
        .main-content-wrap {
            padding: 50px 0 60px;
        }
        .article-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            padding: 40px 48px;
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-dark);
        }
        .article-body p {
            margin-bottom: 1.2rem;
        }
        .article-body h2, .article-body h3, .article-body h4 {
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
            font-weight: 700;
            color: var(--accent);
        }
        .article-body h2 { font-size: 1.5rem; }
        .article-body h3 { font-size: 1.25rem; }
        .article-body ul, .article-body ol {
            margin-bottom: 1.2rem;
            padding-left: 1.5rem;
            list-style: disc;
        }
        .article-body ol { list-style: decimal; }
        .article-body li { margin-bottom: 0.4rem; }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            padding: 16px 24px;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted);
            font-style: italic;
        }
        .article-body img {
            border-radius: var(--radius-sm);
            margin: 1.5rem 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body a { color: var(--primary); text-decoration: underline; }
        .article-body a:hover { color: var(--primary-dark); }

        .article-footer-bar {
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border-color);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-tags .tag {
            background: var(--bg-light);
            color: var(--text-muted);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .article-tags .tag:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .article-share span { font-size: 0.85rem; color: var(--text-muted); }
        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-light);
            color: var(--text-muted);
            transition: var(--transition);
        }
        .article-share a:hover {
            background: var(--primary);
            color: #fff;
        }

        .article-not-found {
            text-align: center;
            padding: 60px 20px;
        }
        .article-not-found i { font-size: 3rem; color: var(--text-light); margin-bottom: 16px; }
        .article-not-found h2 { font-size: 1.5rem; color: var(--text-dark); margin-bottom: 8px; }
        .article-not-found p { color: var(--text-muted); margin-bottom: 20px; }
        .article-not-found .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition);
        }
        .article-not-found .btn-home:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); }

        @media (max-width: 768px) {
            .article-card { padding: 24px 20px; }
            .article-body { font-size: 0.98rem; }
            .article-footer-bar { flex-direction: column; align-items: flex-start; }
        }

        /* ===== Sidebar / Related ===== */
        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 28px 24px;
            margin-bottom: 24px;
        }
        .sidebar-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i { color: var(--primary); }
        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-dark);
            font-size: 0.9rem;
            font-weight: 500;
        }
        .sidebar-list a:hover { color: var(--primary); }
        .sidebar-list a i { color: var(--primary); font-size: 0.75rem; margin-top: 4px; }

        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tags a {
            background: var(--bg-light);
            color: var(--text-muted);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            transition: var(--transition);
        }
        .sidebar-tags a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            padding: 60px 0;
            text-align: center;
            margin-top: 20px;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.85);
            font-size: 1.1rem;
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: var(--primary);
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }
        .cta-section .btn-cta:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        @media (max-width: 768px) {
            .cta-section { padding: 40px 0; }
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section p { font-size: 0.95rem; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--accent);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .footer-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            color: rgba(255,255,255,0.6);
            font-size: 0.88rem;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .footer-col ul li a i { font-size: 0.7rem; }
        .footer-col ul li a:hover { color: var(--secondary); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
        }
        .footer-bottom a { color: rgba(255,255,255,0.6); }
        .footer-bottom a:hover { color: var(--secondary); }

        @media (max-width: 992px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 576px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
        }

        /* ===== Bootstrap Overrides ===== */
        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        /* ===== Animations ===== */
        @keyframes fadeUp {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .animate-fade-up { animation: fadeUp 0.6s ease forwards; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b7a;
            --secondary: #1d3557;
            --secondary-light: #2a4a7f;
            --accent: #f4a261;
            --bg-body: #f8f9fa;
            --bg-card: #ffffff;
            --bg-dark: #1d3557;
            --bg-section-alt: #f1f3f5;
            --text-dark: #1a1a2e;
            --text-body: #2d3436;
            --text-muted: #6c757d;
            --text-light: #f8f9fa;
            --border-color: #dee2e6;
            --border-light: #e9ecef;
            --radius-sm: 0.375rem;
            --radius-md: 0.625rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
            --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.14);
            --transition: 0.25s ease-in-out;
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg-body);
            margin: 0;
            padding: 0;
            padding-top: var(--nav-height);
        }

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

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

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

        ul,
        ol {
            padding-left: 1.25rem;
        }

        /* ===== Utility ===== */
        .container-custom {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .section-padding {
            padding-top: 4.5rem;
            padding-bottom: 4.5rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 2.5rem;
        }

        .text-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        .bg-section-alt {
            background-color: var(--bg-section-alt);
        }

        .bg-dark-section {
            background-color: var(--bg-dark);
            color: var(--text-light);
        }
        .bg-dark-section .section-title {
            color: #fff;
        }
        .bg-dark-section .section-subtitle {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ===== 按钮 ===== */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.6rem 1.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-md);
            border: 2px solid transparent;
            transition: all var(--transition);
            cursor: pointer;
            text-align: center;
            white-space: nowrap;
        }

        .btn-primary-custom {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary-custom:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-custom {
            background-color: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline-custom:hover {
            background-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-light-custom {
            background-color: #fff;
            color: var(--secondary);
            border-color: #fff;
        }
        .btn-light-custom:hover {
            background-color: var(--bg-section-alt);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-accent-custom {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent-custom:hover {
            background-color: #e08e4a;
            border-color: #e08e4a;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-sm-custom {
            padding: 0.4rem 1.1rem;
            font-size: 0.85rem;
        }

        /* ===== 导航 Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            transition: background var(--transition);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 1rem;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }
        .header-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .header-logo .logo-text {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.02em;
        }
        .header-logo .logo-text span {
            color: var(--primary);
        }

        /* 搜索框 - 导航视觉中心 */
        .header-search {
            flex: 1;
            max-width: 480px;
            margin: 0 1rem;
        }
        .header-search .search-wrap {
            display: flex;
            align-items: center;
            background: var(--bg-section-alt);
            border-radius: 50px;
            border: 1.5px solid var(--border-color);
            transition: all var(--transition);
            padding: 0 0.25rem 0 1rem;
        }
        .header-search .search-wrap:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.12);
            background: #fff;
        }
        .header-search .search-wrap i {
            color: var(--text-muted);
            font-size: 0.95rem;
            flex-shrink: 0;
        }
        .header-search .search-wrap input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 0.55rem 0.75rem;
            font-size: 0.9rem;
            outline: none;
            color: var(--text-dark);
            min-width: 0;
        }
        .header-search .search-wrap input::placeholder {
            color: var(--text-muted);
        }
        .header-search .search-wrap button {
            background: var(--primary);
            border: none;
            color: #fff;
            border-radius: 50px;
            padding: 0.4rem 1rem;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: background var(--transition);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .header-search .search-wrap button:hover {
            background: var(--primary-dark);
        }

        /* 导航链接 */
        .header-nav {
            display: flex;
            align-items: center;
            gap: 0.3rem;
            flex-shrink: 0;
        }
        .header-nav .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.5rem 0.9rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .header-nav .nav-link i {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .header-nav .nav-link:hover {
            background: var(--bg-section-alt);
            color: var(--primary);
        }
        .header-nav .nav-link:hover i {
            color: var(--primary);
        }
        .header-nav .nav-link.active {
            background: var(--primary);
            color: #fff;
        }
        .header-nav .nav-link.active i {
            color: #fff;
        }

        /* 移动端菜单切换 */
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            padding: 0.25rem;
            cursor: pointer;
            flex-shrink: 0;
        }

        /* ===== Hero / 分类首屏 ===== */
        .category-hero {
            background: linear-gradient(135deg, var(--secondary) 0%, #0f1b2d 100%);
            color: #fff;
            padding: 4rem 0 3.5rem;
            position: relative;
            overflow: hidden;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            padding: 0.3rem 1rem;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 1.25rem;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .category-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 1rem;
        }
        .category-hero h1 span {
            color: var(--primary-light);
        }
        .category-hero p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            margin-bottom: 2rem;
        }
        .category-hero .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin-top: 1.5rem;
        }
        .category-hero .hero-stats .stat-item {
            display: flex;
            flex-direction: column;
        }
        .category-hero .hero-stats .stat-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
        }
        .category-hero .hero-stats .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
        }

        /* ===== 卡片 ===== */
        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .card-custom .card-body {
            padding: 1.5rem;
        }
        .card-custom .card-img-top {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 1px solid var(--border-light);
        }
        .card-custom .card-tag {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            margin-bottom: 0.6rem;
        }
        .card-custom .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .card-custom .card-text {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0.75rem;
        }
        .card-custom .card-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .card-custom .card-meta i {
            margin-right: 0.2rem;
        }

        /* ===== 标签云 ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }
        .tag-cloud .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.35rem 1rem;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-body);
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            transition: all var(--transition);
        }
        .tag-cloud .tag-item:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .tag-cloud .tag-item i {
            font-size: 0.75rem;
        }

        /* ===== 内容列表 ===== */
        .content-list-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem 0;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition);
        }
        .content-list-item:last-child {
            border-bottom: none;
        }
        .content-list-item .list-img {
            width: 120px;
            min-width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            background: var(--bg-section-alt);
        }
        .content-list-item .list-content {
            flex: 1;
            min-width: 0;
        }
        .content-list-item .list-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 0.25rem;
            line-height: 1.4;
            transition: color var(--transition);
        }
        .content-list-item .list-title:hover {
            color: var(--primary);
        }
        .content-list-item .list-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-list-item .list-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
            display: flex;
            gap: 1rem;
        }

        /* ===== 数据统计块 ===== */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .stat-card {
            text-align: center;
            padding: 1.8rem 1rem;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
        }
        .stat-card .stat-icon {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 0.75rem;
        }
        .stat-card .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .stat-card .stat-label {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.3rem;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 1.1rem 0;
        }
        .faq-item:first-of-type {
            padding-top: 0;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 0.25rem 0;
            transition: color var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: transform var(--transition);
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            font-size: 0.95rem;
            color: var(--text-muted);
            padding-top: 0.5rem;
            line-height: 1.7;
            display: none;
        }
        .faq-answer.show {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, #0f1b2d 100%);
            color: #fff;
            padding: 3.5rem 0;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 1.75rem;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.8);
            padding: 3rem 0 1.5rem;
            font-size: 0.9rem;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .site-footer .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
        }
        .site-footer .footer-brand .footer-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            border-radius: var(--radius-sm);
        }
        .site-footer .footer-brand p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.88rem;
            line-height: 1.6;
            max-width: 320px;
        }
        .site-footer .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
        }
        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .site-footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.88rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 3px;
        }
        .site-footer .footer-col ul li a i {
            font-size: 0.65rem;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 0.75rem 0;
            margin-bottom: 0;
        }
        .breadcrumb-custom a {
            color: var(--text-muted);
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
        }
        .breadcrumb-custom .separator {
            color: var(--border-color);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .header-search {
                max-width: 320px;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 64px;
            }

            .menu-toggle {
                display: block;
            }

            .header-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 1rem 1.25rem;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                gap: 0.25rem;
            }
            .header-nav.open {
                display: flex;
            }
            .header-nav .nav-link {
                width: 100%;
                padding: 0.65rem 1rem;
                border-radius: var(--radius-sm);
            }

            .header-search {
                max-width: 200px;
                margin: 0 0.5rem;
            }
            .header-search .search-wrap button span {
                display: none;
            }
            .header-search .search-wrap button {
                padding: 0.4rem 0.6rem;
            }

            .category-hero h1 {
                font-size: 1.8rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
            .category-hero .hero-stats {
                gap: 1.2rem;
            }
            .category-hero .hero-stats .stat-num {
                font-size: 1.3rem;
            }

            .section-title {
                font-size: 1.5rem;
            }

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

            .content-list-item {
                flex-direction: column;
            }
            .content-list-item .list-img {
                width: 100%;
                height: 140px;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                gap: 0.5rem;
                text-align: center;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .header-search {
                max-width: 140px;
            }
            .header-logo .logo-text {
                font-size: 1.1rem;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }
            .stat-card {
                padding: 1.2rem 0.75rem;
            }
            .stat-card .stat-number {
                font-size: 1.5rem;
            }
            .card-custom .card-body {
                padding: 1.2rem;
            }
        }

        /* ===== 辅助 ===== */
        .gap-1 {
            gap: 0.5rem;
        }
        .gap-2 {
            gap: 1rem;
        }
        .gap-3 {
            gap: 1.5rem;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .fw-700 {
            font-weight: 700;
        }
        .text-primary-custom {
            color: var(--primary);
        }
        .text-muted-custom {
            color: var(--text-muted);
        }