/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a6b;
            --primary-light: #2c5aa0;
            --primary-dark: #0f2444;
            --secondary: #e8a838;
            --secondary-light: #f4c46a;
            --accent: #1e7e6c;
            --bg-light: #f8f9fc;
            --bg-dark: #0f1a2e;
            --bg-card: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #7a7a9a;
            --text-white: #ffffff;
            --border: #e2e6ef;
            --border-light: #f0f2f7;
            --shadow-sm: 0 2px 8px rgba(26, 58, 107, 0.06);
            --shadow-md: 0 4px 20px rgba(26, 58, 107, 0.10);
            --shadow-lg: 0 12px 40px rgba(26, 58, 107, 0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 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-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
        }
        a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
        button { cursor: pointer; background: none; }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 头部导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow-md); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
        }
        .logo i { font-size: 28px; color: var(--secondary); }
        .logo span { background: linear-gradient(135deg, var(--primary), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .logo:hover { opacity: 0.9; }
        .nav-main { display: flex; align-items: center; gap: 6px; }
        .nav-main a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
        }
        .nav-main a:hover { color: var(--primary); background: rgba(26, 58, 107, 0.06); }
        .nav-main a.active {
            color: var(--primary);
            background: rgba(26, 58, 107, 0.10);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--secondary);
        }
        .header-actions { display: flex; align-items: center; gap: 14px; }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 0 16px;
            height: 40px;
            width: 200px;
            transition: all var(--transition);
        }
        .search-box:focus-within { border-color: var(--primary-light); box-shadow: 0 0 0 3px rgba(26, 58, 107, 0.10); width: 240px; }
        .search-box i { color: var(--text-light); font-size: 15px; }
        .search-box input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 0 10px;
            font-size: 14px;
            color: var(--text-primary);
        }
        .search-box input::placeholder { color: var(--text-light); }
        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 600;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--text-white);
            transition: all var(--transition);
            box-shadow: 0 4px 14px rgba(26, 58, 107, 0.25);
        }
        .btn-header:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(26, 58, 107, 0.35); color: #fff; }
        .mobile-toggle { display: none; font-size: 26px; color: var(--primary); cursor: pointer; padding: 4px; }

        /* ===== 移动端导航 ===== */
        @media (max-width: 900px) {
            .nav-main { display: none; }
            .search-box { display: none; }
            .mobile-toggle { display: block; }
            .header-actions .btn-header { display: none; }
            .nav-mobile-open .nav-main {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                width: 100%;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(12px);
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                gap: 4px;
                animation: slideDown 0.3s ease;
            }
            .nav-mobile-open .nav-main a { padding: 12px 16px; font-size: 16px; }
            .nav-mobile-open .header-actions .btn-header { display: inline-flex; margin-top: 8px; }
            @keyframes slideDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
        }
        @media (max-width: 520px) {
            .header-inner { padding: 0 16px; }
            .logo { font-size: 18px; }
            .logo i { font-size: 22px; }
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            padding-top: var(--header-height);
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #0d1f3c 50%, #162d4e 100%);
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.20;
            mix-blend-mode: overlay;
        }
        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(232, 168, 56, 0.12) 0%, transparent 60%);
        }
        .hero .container { position: relative; z-index: 2; width: 100%; }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            padding: 80px 0 60px;
        }
        .hero-content { max-width: 600px; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 40px;
            background: rgba(232, 168, 56, 0.18);
            color: var(--secondary-light);
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 24px;
            border: 1px solid rgba(232, 168, 56, 0.25);
        }
        .hero-badge i { font-size: 14px; }
        .hero-title {
            font-size: clamp(36px, 5.5vw, 64px);
            font-weight: 800;
            line-height: 1.15;
            color: var(--text-white);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-title .highlight { color: var(--secondary); }
        .hero-desc {
            font-size: 18px;
            color: rgba(255,255,255,0.75);
            line-height: 1.7;
            margin-bottom: 36px;
            max-width: 520px;
        }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 36px;
            border-radius: 40px;
            font-size: 16px;
            font-weight: 600;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            color: var(--primary-dark);
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(232, 168, 56, 0.35);
        }
        .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 36px rgba(232, 168, 56, 0.45); color: var(--primary-dark); }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 36px;
            border-radius: 40px;
            font-size: 16px;
            font-weight: 600;
            border: 2px solid rgba(255,255,255,0.3);
            color: var(--text-white);
            transition: all var(--transition);
            background: transparent;
        }
        .btn-outline:hover { border-color: var(--secondary); color: var(--secondary); transform: translateY(-3px); }
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }
        .hero-img-wrap {
            position: relative;
            width: 100%;
            max-width: 500px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .hero-img-wrap img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: var(--radius-lg); }
        .hero-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            box-shadow: inset 0 0 60px rgba(0,0,0,0.1);
        }
        .hero-float-card {
            position: absolute;
            bottom: -20px;
            left: -20px;
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(10px);
            padding: 16px 22px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .hero-float-card i { font-size: 28px; color: var(--secondary); }
        .hero-float-card span { font-size: 14px; font-weight: 600; color: var(--text-primary); }
        @media (max-width: 900px) {
            .hero-grid { grid-template-columns: 1fr; gap: 40px; padding: 40px 0; text-align: center; }
            .hero-content { max-width: 100%; }
            .hero-desc { margin-left: auto; margin-right: auto; }
            .hero-actions { justify-content: center; }
            .hero-visual { order: -1; }
            .hero-img-wrap { max-width: 400px; margin: 0 auto; }
            .hero-float-card { left: 10px; bottom: -10px; }
        }
        @media (max-width: 520px) {
            .hero { min-height: auto; padding-top: var(--header-height); }
            .hero-grid { padding: 30px 0; gap: 30px; }
            .hero-title { font-size: 30px; }
            .hero-desc { font-size: 16px; }
            .btn-primary, .btn-outline { padding: 14px 28px; font-size: 15px; width: 100%; justify-content: center; }
            .hero-actions { flex-direction: column; }
            .hero-float-card { position: relative; bottom: auto; left: auto; margin-top: 16px; justify-content: center; }
        }

        /* ===== 通用板块 ===== */
        .section { padding: 90px 0; }
        .section-alt { background: var(--bg-card); }
        .section-dark { background: var(--bg-dark); color: var(--text-white); }
        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 56px;
        }
        .section-header h2 {
            font-size: clamp(28px, 3.6vw, 42px);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }
        .section-dark .section-header h2 { color: var(--text-white); }
        .section-header p {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .section-dark .section-header p { color: rgba(255,255,255,0.7); }
        .section-tag {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 40px;
            background: rgba(26, 58, 107, 0.08);
            color: var(--primary-light);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 12px;
            text-transform: uppercase;
        }
        .section-dark .section-tag { background: rgba(255,255,255,0.10); color: var(--secondary-light); }

        /* ===== 分类入口 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            cursor: pointer;
        }
        .category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
        .category-card .card-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; display: block; }
        .category-card .card-body { padding: 24px 26px 28px; }
        .category-card .card-body h3 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
        .category-card .card-body p { font-size: 15px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 16px; }
        .category-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-light);
        }
        .category-card .card-link i { transition: transform var(--transition); }
        .category-card:hover .card-link i { transform: translateX(4px); }
        @media (max-width: 900px) {
            .category-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
        }
        @media (max-width: 520px) {
            .category-grid { grid-template-columns: 1fr; gap: 18px; }
            .category-card .card-body { padding: 18px 20px 22px; }
        }

        /* ===== 最新资讯 / CMS 列表 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .news-card .card-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
        .news-card .card-body { padding: 20px 22px 24px; flex: 1; display: flex; flex-direction: column; }
        .news-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 10px;
        }
        .news-card .card-meta .cat {
            padding: 2px 12px;
            border-radius: 40px;
            background: rgba(26, 58, 107, 0.07);
            color: var(--primary-light);
            font-weight: 500;
            font-size: 12px;
        }
        .news-card .card-body h3 { font-size: 17px; font-weight: 700; color: var(--text-primary); line-height: 1.5; margin-bottom: 8px; flex: 1; }
        .news-card .card-body h3 a { color: inherit; }
        .news-card .card-body h3 a:hover { color: var(--primary-light); }
        .news-card .card-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .news-card .card-body .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-light);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-light);
            font-size: 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border);
        }
        @media (max-width: 900px) {
            .news-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
        }
        @media (max-width: 520px) {
            .news-grid { grid-template-columns: 1fr; gap: 16px; }
            .news-card .card-body { padding: 16px 18px 20px; }
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 16px;
            background: rgba(255,255,255,0.06);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.08);
            transition: all var(--transition);
        }
        .stat-item:hover { background: rgba(255,255,255,0.10); transform: translateY(-3px); }
        .stat-item .num {
            font-size: clamp(32px, 4vw, 48px);
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-item .label { font-size: 15px; color: rgba(255,255,255,0.7); font-weight: 500; }
        @media (max-width: 900px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
        }
        @media (max-width: 520px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
            .stat-item { padding: 24px 12px; }
        }

        /* ===== 特色服务 / 流程 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 36px 28px 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            text-align: center;
        }
        .feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
        .feature-card .icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(26,58,107,0.08), rgba(26,58,107,0.02));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 28px;
            color: var(--primary);
            transition: all var(--transition);
        }
        .feature-card:hover .icon { background: var(--primary); color: #fff; }
        .feature-card h3 { font-size: 19px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
        .feature-card p { font-size: 15px; color: var(--text-secondary); line-height: 1.6; }
        @media (max-width: 900px) {
            .features-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
        }
        @media (max-width: 520px) {
            .features-grid { grid-template-columns: 1fr; gap: 16px; }
            .feature-card { padding: 28px 20px 24px; }
        }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--border); }
        .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-primary);
            transition: color var(--transition);
            user-select: none;
        }
        .faq-question i { font-size: 14px; color: var(--text-light); transition: transform var(--transition); }
        .faq-item.active .faq-question { color: var(--primary); }
        .faq-item.active .faq-question i { transform: rotate(180deg); color: var(--primary); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        @media (max-width: 520px) {
            .faq-question { padding: 16px 18px; font-size: 15px; }
            .faq-answer { padding: 0 18px; font-size: 14px; }
            .faq-item.active .faq-answer { padding: 0 18px 16px; }
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: clamp(26px, 3.2vw, 38px);
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-inner p {
            font-size: 17px;
            color: rgba(255,255,255,0.8);
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .cta-inner .btn-primary { font-size: 17px; padding: 18px 44px; }
        @media (max-width: 520px) {
            .cta-section { padding: 60px 0; }
            .cta-inner .btn-primary { width: 100%; justify-content: center; }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { color: var(--text-white); margin-bottom: 14px; }
        .footer-brand .logo i { color: var(--secondary); }
        .footer-brand .logo span { background: linear-gradient(135deg, #fff, #ccc); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .footer-brand p { font-size: 14px; line-height: 1.7; max-width: 320px; }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 18px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255,255,255,0.6);
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover { color: var(--secondary); }
        .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: 13px;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--secondary); }
        @media (max-width: 900px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== 辅助 ===== */
        .text-center { text-align: center; }
        .mt-8 { margin-top: 8px; }
        .mb-8 { margin-bottom: 8px; }
        .gap-4 { gap: 4px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .w-full { width: 100%; }

        /* ===== 响应式微调 ===== */
        @media (max-width: 1024px) {
            .container { padding: 0 20px; }
            .section { padding: 70px 0; }
        }
        @media (max-width: 768px) {
            .section { padding: 56px 0; }
            .section-header { margin-bottom: 36px; }
            .section-header h2 { font-size: 26px; }
            .section-header p { font-size: 15px; }
        }
        @media (max-width: 520px) {
            .section { padding: 44px 0; }
            .container { padding: 0 16px; }
            .section-header h2 { font-size: 22px; }
            .section-header p { font-size: 14px; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a6b;
            --primary-light: #2a5a9e;
            --primary-dark: #0e2345;
            --accent: #e8a83e;
            --accent-light: #f0c06a;
            --accent-dark: #c98a2a;
            --bg: #ffffff;
            --bg-alt: #f6f8fc;
            --bg-card: #ffffff;
            --text: #1e2a3a;
            --text-light: #5a6a7e;
            --text-muted: #8a9aaa;
            --border: #e2e8f0;
            --border-light: #f0f2f5;
            --shadow-sm: 0 2px 8px rgba(26, 58, 107, 0.06);
            --shadow-md: 0 6px 24px rgba(26, 58, 107, 0.08);
            --shadow-lg: 0 12px 40px rgba(26, 58, 107, 0.12);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary-dark);
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            transition: 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: 20px;
            font-weight: 700;
            color: var(--primary-dark);
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo i {
            font-size: 26px;
            color: var(--accent);
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover {
            opacity: 0.9;
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-main a {
            position: relative;
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-main a:hover {
            color: var(--primary);
            background: rgba(26, 58, 107, 0.06);
        }
        .nav-main a.active {
            color: var(--primary);
            background: rgba(26, 58, 107, 0.08);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-alt);
            border-radius: 40px;
            padding: 0 16px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(26, 58, 107, 0.1);
        }
        .search-box input {
            background: transparent;
            padding: 8px 8px 8px 0;
            font-size: 14px;
            color: var(--text);
            width: 140px;
            border: none;
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .search-box button {
            background: transparent;
            color: var(--text-muted);
            cursor: pointer;
            padding: 6px 4px;
            font-size: 15px;
            transition: var(--transition);
        }
        .search-box button:hover {
            color: var(--primary);
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 14px;
            border-radius: 40px;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            box-shadow: 0 4px 12px rgba(232, 168, 62, 0.3);
        }
        .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 168, 62, 0.4);
            color: var(--primary-dark);
        }
        .btn-cta i {
            font-size: 14px;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 26px;
            color: var(--primary-dark);
            cursor: pointer;
            padding: 4px;
        }

        /* ===== 移动端导航 ===== */
        @media (max-width: 900px) {
            .nav-main {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-main a {
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
            }
            .nav-main a.active::after {
                display: none;
            }
            .menu-toggle {
                display: block;
            }
            .search-box input {
                width: 100px;
            }
            .btn-cta span {
                display: none;
            }
            .btn-cta {
                padding: 10px 16px;
            }
            .btn-cta i {
                margin: 0;
            }
        }
        @media (max-width: 520px) {
            .search-box {
                display: none;
            }
            .logo span {
                font-size: 18px;
            }
        }

        /* ===== Banner 内页横幅 ===== */
        .page-banner {
            margin-top: var(--header-h);
            padding: 80px 0 64px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .page-banner .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-bottom: 20px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }
        .page-banner .breadcrumb a:hover {
            color: var(--accent-light);
        }
        .page-banner .breadcrumb span {
            color: var(--accent-light);
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 60px 0 48px;
                min-height: 240px;
            }
            .page-banner h1 {
                font-size: 30px;
            }
            .page-banner p {
                font-size: 16px;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 26px;
            }
            .page-banner p {
                font-size: 14px;
            }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-title p {
            font-size: 17px;
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-title .tagline {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(232, 168, 62, 0.12);
            color: var(--accent-dark);
            border-radius: 40px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-title {
                margin-bottom: 32px;
            }
            .section-title h2 {
                font-size: 26px;
            }
            .section-title p {
                font-size: 15px;
            }
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card-grid.col-2 {
            grid-template-columns: repeat(2, 1fr);
        }
        .card-grid.col-4 {
            grid-template-columns: repeat(4, 1fr);
        }
        @media (max-width: 1024px) {
            .card-grid.col-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .card-grid.col-2,
            .card-grid.col-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
            .card-grid.col-2,
            .card-grid.col-4 {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 产品卡片 ===== */
        .product-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .product-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .product-card .card-img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            background: var(--bg-alt);
            transition: var(--transition);
        }
        .product-card:hover .card-img {
            transform: scale(1.02);
        }
        .product-card .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .product-card .card-tag {
            display: inline-block;
            padding: 2px 12px;
            background: rgba(26, 58, 107, 0.08);
            color: var(--primary);
            border-radius: 40px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .product-card .card-tag.hot {
            background: rgba(232, 168, 62, 0.15);
            color: var(--accent-dark);
        }
        .product-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        .product-card .card-desc {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }
        .product-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }
        .product-card .card-price {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
        }
        .product-card .card-price small {
            font-size: 13px;
            font-weight: 400;
            color: var(--text-muted);
        }
        .product-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
        }
        .product-card .card-link:hover {
            color: var(--accent-dark);
            gap: 10px;
        }
        @media (max-width: 768px) {
            .product-card .card-body {
                padding: 16px 18px 20px;
            }
            .product-card h3 {
                font-size: 18px;
            }
            .product-card .card-price {
                font-size: 16px;
            }
        }

        /* ===== 特色列表 ===== */
        .feature-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-top: 16px;
        }
        .feature-item {
            display: flex;
            gap: 18px;
            padding: 24px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .feature-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .feature-item .fi-icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            background: rgba(26, 58, 107, 0.06);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
        }
        .feature-item .fi-icon.accent {
            background: rgba(232, 168, 62, 0.12);
            color: var(--accent-dark);
        }
        .feature-item h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--primary-dark);
        }
        .feature-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }
        @media (max-width: 900px) {
            .feature-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .feature-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .feature-item {
                padding: 18px 16px;
            }
        }

        /* ===== 对比表格 ===== */
        .compare-table-wrap {
            overflow-x: auto;
            margin-top: 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            background: var(--bg-card);
            box-shadow: var(--shadow-sm);
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
            min-width: 600px;
        }
        .compare-table th {
            background: var(--primary);
            color: #fff;
            padding: 16px 20px;
            text-align: left;
            font-weight: 600;
            white-space: nowrap;
        }
        .compare-table th:first-child {
            border-radius: var(--radius-md) 0 0 0;
        }
        .compare-table th:last-child {
            border-radius: 0 var(--radius-md) 0 0;
        }
        .compare-table td {
            padding: 14px 20px;
            border-bottom: 1px solid var(--border-light);
            color: var(--text);
        }
        .compare-table tr:last-child td {
            border-bottom: none;
        }
        .compare-table tr:hover td {
            background: rgba(26, 58, 107, 0.02);
        }
        .compare-table .highlight {
            color: var(--primary);
            font-weight: 600;
        }
        .compare-table .badge {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 40px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(232, 168, 62, 0.15);
            color: var(--accent-dark);
        }
        @media (max-width: 768px) {
            .compare-table {
                font-size: 14px;
            }
            .compare-table th,
            .compare-table td {
                padding: 12px 14px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-item summary {
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            list-style: none;
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 18px;
            color: var(--text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item[open] summary {
            border-bottom: 1px solid var(--border-light);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .faq-item summary {
                padding: 14px 18px;
                font-size: 15px;
            }
            .faq-item .faq-answer {
                padding: 0 18px 16px;
                font-size: 14px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 520px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-cta {
            background: #fff;
            color: var(--primary-dark);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
            font-size: 16px;
            padding: 14px 36px;
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
        }
        .cta-section .btn-cta i {
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 56px 0;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-section p {
                font-size: 16px;
            }
        }

        /* ===== 标签云 ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-top: 12px;
        }
        .tag-cloud a {
            display: inline-block;
            padding: 8px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 40px;
            font-size: 14px;
            color: var(--text-light);
            font-weight: 500;
            transition: var(--transition);
        }
        .tag-cloud a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(26, 58, 107, 0.2);
        }

        /* ===== 分页 ===== */
        .pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 48px;
        }
        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            background: var(--bg-card);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .pagination a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .pagination .active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .pagination .dots {
            border: none;
            background: transparent;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
        }
        .site-footer .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand .logo i {
            color: var(--accent);
        }
        .footer-brand .logo span {
            background: none;
            -webkit-text-fill-color: #fff;
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }
        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer {
                padding: 40px 0 0;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* ===== 空状态 / 加载占位 ===== */
        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
        }
        .empty-state i {
            font-size: 48px;
            margin-bottom: 16px;
            opacity: 0.4;
        }
        .empty-state p {
            font-size: 16px;
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 1024px) {
            .card-grid {
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 24px;
            }
            .section-title h2 {
                font-size: 22px;
            }
            .product-card .card-body {
                padding: 14px 14px 18px;
            }
            .product-card h3 {
                font-size: 16px;
            }
            .product-card .card-price {
                font-size: 15px;
            }
            .compare-table th,
            .compare-table td {
                padding: 10px 12px;
                font-size: 13px;
            }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a56db;
            --primary-dark: #0f3a8e;
            --primary-light: #e8f0fe;
            --accent: #f59e0b;
            --accent-light: #fef3c7;
            --bg-body: #f9fafb;
            --bg-white: #ffffff;
            --text-dark: #111827;
            --text-main: #374151;
            --text-light: #6b7280;
            --text-white: #ffffff;
            --border: #e5e7eb;
            --border-light: #f3f4f6;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.25s ease;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
            --container-width: 1200px;
            --header-height: 76px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: 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 {
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--header-height);
            display: flex;
            align-items: center;
            box-shadow: var(--shadow-sm);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
        }
        .logo i {
            font-size: 28px;
            color: var(--primary);
        }
        .logo span {
            color: var(--text-dark);
        }
        .logo:hover {
            opacity: 0.9;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-main a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-main);
            font-weight: 500;
            font-size: 15px;
            transition: var(--transition);
            position: relative;
        }
        .nav-main a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--primary);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-body);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 0 14px;
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.12);
        }
        .search-box input {
            border: none;
            background: transparent;
            padding: 8px 10px;
            outline: none;
            font-size: 14px;
            color: var(--text-dark);
            width: 160px;
        }
        .search-box input::placeholder {
            color: var(--text-light);
        }
        .search-box button {
            border: none;
            background: transparent;
            color: var(--text-light);
            cursor: pointer;
            font-size: 15px;
            padding: 4px;
        }
        .search-box button:hover {
            color: var(--primary);
        }
        .btn-cta {
            background: var(--primary);
            color: var(--text-white);
            padding: 10px 24px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-cta:hover {
            background: var(--primary-dark);
            color: var(--text-white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-cta-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            padding: 8px 22px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-cta-outline:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-1px);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 26px;
            color: var(--text-dark);
            cursor: pointer;
            padding: 4px;
        }

        /* ===== Article Hero ===== */
        .article-hero {
            background: linear-gradient(135deg, #0f3a8e 0%, #1a56db 60%, #3b82f6 100%);
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
        }
        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 20px;
        }
        .article-hero .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }
        .article-hero .breadcrumb a:hover {
            color: #fff;
        }
        .article-hero .breadcrumb i {
            font-size: 12px;
        }
        .article-hero h1 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            max-width: 800px;
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 18px;
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
        }
        .article-meta .tag {
            background: rgba(255, 255, 255, 0.18);
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 13px;
            color: #fff;
        }
        .article-meta i {
            margin-right: 5px;
        }

        /* ===== Main Content ===== */
        .article-main {
            padding: 50px 0 70px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
        }
        .article-body {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 40px 44px;
            border: 1px solid var(--border-light);
        }
        .article-body .content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-main);
        }
        .article-body .content p {
            margin-bottom: 20px;
        }
        .article-body .content h2,
        .article-body .content h3 {
            margin-top: 32px;
            margin-bottom: 16px;
            color: var(--text-dark);
            font-weight: 700;
        }
        .article-body .content h2 {
            font-size: 24px;
        }
        .article-body .content h3 {
            font-size: 20px;
        }
        .article-body .content ul,
        .article-body .content ol {
            margin-bottom: 20px;
            padding-left: 24px;
        }
        .article-body .content li {
            margin-bottom: 8px;
            list-style: disc;
        }
        .article-body .content img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
        }
        .article-body .content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            padding: 16px 22px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
            color: var(--text-dark);
        }
        .article-body .content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-body .content a:hover {
            color: var(--primary-dark);
        }
        .article-body .content .cms-table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
        }
        .article-body .content .cms-table th,
        .article-body .content .cms-table td {
            border: 1px solid var(--border);
            padding: 12px 16px;
            text-align: left;
        }
        .article-body .content .cms-table th {
            background: var(--bg-body);
            font-weight: 600;
        }
        .article-footer-nav {
            display: flex;
            justify-content: space-between;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        .article-footer-nav a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            color: var(--primary);
            font-weight: 500;
        }
        .article-footer-nav a:hover {
            color: var(--primary-dark);
        }
        .article-footer-nav .disabled {
            color: var(--text-light);
            pointer-events: none;
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 24px 28px;
            border: 1px solid var(--border-light);
        }
        .sidebar-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-light);
        }
        .sidebar-card ul li {
            margin-bottom: 10px;
        }
        .sidebar-card ul li a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-main);
            font-size: 14px;
            padding: 6px 0;
            transition: var(--transition);
        }
        .sidebar-card ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .sidebar-card ul li a i {
            color: var(--primary);
            font-size: 12px;
            width: 18px;
            text-align: center;
        }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            text-align: center;
            color: #fff;
        }
        .sidebar-cta h4 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .sidebar-cta p {
            font-size: 14px;
            opacity: 0.9;
            margin-bottom: 20px;
        }
        .sidebar-cta .btn-cta {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
        }
        .sidebar-cta .btn-cta:hover {
            background: var(--accent);
            color: var(--text-dark);
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found-box i {
            font-size: 64px;
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .not-found-box h2 {
            font-size: 28px;
            color: var(--text-dark);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-light);
            margin-bottom: 28px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #1f2937;
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 20px;
            margin-bottom: 14px;
        }
        .footer-brand .logo span {
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            opacity: 0.75;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

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

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .nav-main {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 20px;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--border);
                gap: 4px;
            }
            .nav-main.open {
                display: flex;
            }
            .nav-main a {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-main a.active::after {
                display: none;
            }
            .nav-actions .search-box {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .article-hero h1 {
                font-size: 26px;
            }
            .article-body {
                padding: 24px 18px;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .sidebar-card {
                padding: 18px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .article-footer-nav {
                flex-direction: column;
                gap: 12px;
            }
        }

        @media (max-width: 520px) {
            .article-hero h1 {
                font-size: 22px;
            }
            .article-body {
                padding: 16px 14px;
            }
            .article-body .content {
                font-size: 15px;
            }
            .btn-cta {
                padding: 8px 18px;
                font-size: 13px;
            }
            .logo {
                font-size: 18px;
            }
            .logo i {
                font-size: 22px;
            }
            .sidebar-cta {
                padding: 24px 18px;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --primary-bg: #eff6ff;
            --secondary: #0ea5e9;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --success: #10b981;
            --text: #1e293b;
            --text-light: #64748b;
            --text-white: #ffffff;
            --bg: #ffffff;
            --bg-alt: #f8fafc;
            --bg-card: #ffffff;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.12);
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container: 1280px;
            --nav-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            padding-top: var(--nav-height);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 32px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 32px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo i {
            color: var(--primary);
            font-size: 26px;
        }
        .logo:hover {
            color: var(--text);
        }
        .logo span {
            letter-spacing: -0.3px;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0 24px;
        }
        .nav-main a {
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            border-radius: var(--radius-xs);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-main a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-bg);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--primary);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-alt);
            border-radius: 50px;
            padding: 0 16px;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            background: var(--bg);
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
        }
        .search-box input {
            background: transparent;
            padding: 8px 8px 8px 4px;
            font-size: 14px;
            color: var(--text);
            width: 140px;
            border: none;
        }
        .search-box input::placeholder {
            color: var(--text-light);
        }
        .search-box button {
            background: transparent;
            color: var(--text-light);
            cursor: pointer;
            padding: 6px 4px;
            font-size: 15px;
            transition: color var(--transition);
        }
        .search-box button:hover {
            color: var(--primary);
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: var(--primary);
            color: var(--text-white);
            font-size: 15px;
            font-weight: 600;
            border-radius: 50px;
            transition: all var(--transition);
            cursor: pointer;
            border: none;
            white-space: nowrap;
        }
        .btn-cta:hover {
            background: var(--primary-dark);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
        }
        .btn-cta:active {
            transform: translateY(0);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 6px;
            background: transparent;
            border: none;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text);
            border-radius: 2px;
            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);
        }
        @media (max-width: 1024px) {
            .nav-main {
                gap: 4px;
                margin: 0 12px;
            }
            .nav-main a {
                padding: 6px 12px;
                font-size: 14px;
            }
            .search-box input {
                width: 100px;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-main {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 8px;
                margin: 0;
                border-bottom: 1px solid var(--border);
                transform: translateY(-110%);
                opacity: 0;
                transition: all var(--transition);
                pointer-events: none;
                box-shadow: var(--shadow-lg);
                max-height: calc(100vh - var(--nav-height));
                overflow-y: auto;
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-main a {
                font-size: 16px;
                padding: 12px 16px;
                width: 100%;
                text-align: left;
                border-radius: var(--radius-xs);
            }
            .nav-main a.active::after {
                display: none;
            }
            .nav-actions .search-box {
                display: none;
            }
            .btn-cta {
                padding: 8px 16px;
                font-size: 14px;
            }
            .header-inner {
                padding: 0 20px;
            }
            .logo {
                font-size: 18px;
            }
            .logo i {
                font-size: 22px;
            }
        }
        @media (max-width: 520px) {
            .header-inner {
                padding: 0 16px;
            }
            .logo span {
                font-size: 16px;
            }
            .btn-cta {
                padding: 6px 14px;
                font-size: 13px;
                gap: 4px;
            }
            .btn-cta i {
                font-size: 13px;
            }
        }

        /* ===== Banner ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 72px;
            background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 40%, #2563eb 100%);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 80%, rgba(37, 99, 235, 0.4) 0%, transparent 70%),
                radial-gradient(ellipse at 80% 20%, rgba(14, 165, 233, 0.3) 0%, transparent 60%);
        }
        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .page-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }
        .page-banner .breadcrumb a:hover {
            color: #fff;
        }
        .page-banner .breadcrumb i {
            font-size: 12px;
        }
        .page-banner h1 {
            font-size: 44px;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            max-width: 600px;
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 60px 0 48px;
                min-height: 240px;
            }
            .page-banner h1 {
                font-size: 30px;
            }
            .page-banner p {
                font-size: 16px;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 26px;
            }
            .page-banner p {
                font-size: 15px;
            }
        }

        /* ===== Service Intro ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 56px;
        }
        .section-header h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 17px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .section-header .badge {
            display: inline-block;
            padding: 4px 16px;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            border-radius: 50px;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 40px;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .section-header p {
                font-size: 15px;
            }
        }
        @media (max-width: 520px) {
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 22px;
            }
        }

        /* ===== Service Cards Grid ===== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 36px 32px 32px;
            border: 1px solid var(--border);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--primary);
            opacity: 0;
            transition: opacity var(--transition);
        }
        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: transparent;
        }
        .service-card:hover::before {
            opacity: 1;
        }
        .service-card .icon {
            width: 56px;
            height: 56px;
            background: var(--primary-bg);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--primary);
            margin-bottom: 20px;
            transition: all var(--transition);
        }
        .service-card:hover .icon {
            background: var(--primary);
            color: var(--text-white);
            transform: scale(1.05);
        }
        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .service-card p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .service-card .tag {
            display: inline-block;
            padding: 2px 12px;
            background: var(--bg-alt);
            color: var(--text-light);
            font-size: 12px;
            font-weight: 500;
            border-radius: 50px;
            margin-right: 6px;
            margin-bottom: 4px;
        }
        .service-card .link-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-top: 8px;
            transition: gap var(--transition);
        }
        .service-card .link-more:hover {
            gap: 12px;
            color: var(--primary-dark);
        }
        @media (max-width: 1024px) {
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .service-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .service-card {
                padding: 28px 24px 24px;
            }
            .service-card h3 {
                font-size: 18px;
            }
        }

        /* ===== Process Flow ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .process-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 24px 28px;
            text-align: center;
            border: 1px solid var(--border);
            transition: all var(--transition);
            position: relative;
        }
        .process-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .process-item .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 20px;
            font-weight: 800;
            border-radius: 50%;
            margin-bottom: 16px;
            transition: all var(--transition);
        }
        .process-item:hover .step-num {
            background: var(--primary);
            color: var(--text-white);
        }
        .process-item h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .process-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }
        .process-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary-light);
            opacity: 0.5;
        }
        @media (max-width: 1024px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .process-arrow {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .process-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .process-item {
                padding: 24px 20px;
            }
        }

        /* ===== FAQ ===== */
        .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);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 28px;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
            gap: 16px;
        }
        .faq-question:hover {
            background: var(--bg-alt);
        }
        .faq-question i {
            font-size: 18px;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 28px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 28px 20px;
        }
        @media (max-width: 768px) {
            .faq-question {
                padding: 16px 20px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 20px;
                font-size: 14px;
            }
            .faq-item.open .faq-answer {
                padding: 0 20px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 60%, #0ea5e9 100%);
            border-radius: var(--radius);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-block .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-block h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cta-block p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            max-width: 540px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-block .btn-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-block .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: var(--text-white);
            color: var(--primary);
            font-size: 16px;
            font-weight: 700;
            border-radius: 50px;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }
        .cta-block .btn-primary:hover {
            background: var(--accent);
            color: var(--text-white);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
        }
        .cta-block .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: transparent;
            color: var(--text-white);
            font-size: 16px;
            font-weight: 600;
            border-radius: 50px;
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: all var(--transition);
            cursor: pointer;
        }
        .cta-block .btn-outline-light:hover {
            border-color: var(--text-white);
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
        }
        @media (max-width: 768px) {
            .cta-block {
                padding: 48px 28px;
            }
            .cta-block h2 {
                font-size: 26px;
            }
            .cta-block p {
                font-size: 15px;
            }
            .cta-block .btn-primary,
            .cta-block .btn-outline-light {
                padding: 12px 28px;
                font-size: 15px;
                width: 100%;
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .cta-block {
                padding: 36px 20px;
                border-radius: var(--radius-sm);
            }
            .cta-block h2 {
                font-size: 22px;
            }
        }

        /* ===== Promise / Stats ===== */
        .promise-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .promise-item {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .promise-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .promise-item .num {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 8px;
        }
        .promise-item .num span {
            font-size: 20px;
            font-weight: 600;
        }
        .promise-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }
        .promise-item p {
            font-size: 14px;
            color: var(--text-light);
        }
        @media (max-width: 1024px) {
            .promise-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .promise-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .promise-item {
                padding: 20px 12px;
            }
            .promise-item .num {
                font-size: 30px;
            }
        }

        /* ===== Media & Content ===== */
        .media-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .media-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            aspect-ratio: 4/3;
            background: var(--bg-alt);
        }
        .media-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .media-image:hover img {
            transform: scale(1.04);
        }
        .media-text h3 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .media-text p {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .media-text .feature-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .media-text .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--text);
        }
        .media-text .feature-list li i {
            color: var(--success);
            font-size: 16px;
            margin-top: 3px;
            flex-shrink: 0;
        }
        @media (max-width: 768px) {
            .media-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .media-grid.reverse {
                direction: ltr;
            }
            .media-text h3 {
                font-size: 22px;
            }
            .media-image {
                aspect-ratio: 16/9;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f172a;
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            color: var(--text-white);
            margin-bottom: 16px;
            font-size: 20px;
        }
        .footer-brand .logo i {
            color: var(--primary-light);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 12px;
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 40px 0 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-col h4 {
                margin-bottom: 14px;
            }
        }

        /* ===== Responsive Utility ===== */
        @media (max-width: 768px) {
            .mobile-hide {
                display: none !important;
            }
        }
        @media (min-width: 769px) {
            .mobile-only {
                display: none !important;
            }
        }

        /* ===== Smooth Load ===== */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInUp 0.6s ease forwards;
        }
        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
        }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a56db;
            --primary-dark: #0f3a9e;
            --primary-light: #e8eefb;
            --accent: #f59e0b;
            --accent-light: #fef3c7;
            --bg-body: #ffffff;
            --bg-section: #f8fafc;
            --bg-dark: #0f172a;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-inverse: #ffffff;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 12px;
            --radius-sm: 6px;
            --radius-lg: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --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;
        }

        /* ===== Reset / Base ===== */
        *,
        *::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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            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 {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ===== 容器 ===== */
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 头部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: var(--header-h);
            display: flex;
            align-items: center;
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
        }
        .logo i {
            color: var(--primary);
            font-size: 26px;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover span {
            -webkit-text-fill-color: var(--primary-dark);
        }
        .logo:hover {
            color: var(--text-primary);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-main a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 15px;
            transition: all var(--transition);
            position: relative;
        }
        .nav-main a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }

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

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-section);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 0 16px;
            height: 40px;
            transition: all var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
        }
        .search-box i {
            color: var(--text-muted);
            font-size: 14px;
        }
        .search-box input {
            background: transparent;
            border: none;
            padding: 0 10px;
            width: 160px;
            color: var(--text-primary);
            font-size: 14px;
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            background: var(--primary);
            color: var(--text-inverse) !important;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(26, 86, 219, 0.25);
        }
        .btn-cta i {
            font-size: 14px;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-primary);
            cursor: pointer;
            padding: 4px;
        }

        /* ===== 移动端导航 ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-h);
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            padding: 16px 24px;
            box-shadow: var(--shadow-lg);
            z-index: 999;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }
        .mobile-nav.open {
            max-height: 400px;
            padding: 16px 24px 24px;
        }
        .mobile-nav a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 16px;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: var(--primary);
            background: var(--primary-light);
        }
        .mobile-nav .btn-cta {
            margin-top: 12px;
            justify-content: center;
            width: 100%;
        }

        /* ===== 页面横幅 ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 64px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #1e293b 100%);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            color: var(--text-inverse);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-bottom: 20px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb span {
            color: rgba(255, 255, 255, 0.9);
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 72px 0;
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: 40px;
            line-height: 1.7;
        }
        .text-center {
            text-align: center;
        }
        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 标签筛选 ===== */
        .tag-filter {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-bottom: 40px;
        }
        .tag-filter .tag {
            padding: 8px 22px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-section);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: all var(--transition);
        }
        .tag-filter .tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .tag-filter .tag.active {
            background: var(--primary);
            color: var(--text-inverse);
            border-color: var(--primary);
        }

        /* ===== 新闻卡片网格 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: var(--bg-body);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .news-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            transition: transform 0.5s ease;
        }
        .news-card:hover .card-img {
            transform: scale(1.03);
        }
        .news-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .news-card .card-meta .badge {
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 12px;
        }
        .news-card .card-meta .badge.hot {
            background: #fee2e2;
            color: #dc2626;
        }
        .news-card .card-meta .badge.new {
            background: #dbeafe;
            color: #2563eb;
        }
        .news-card .card-meta .badge.event {
            background: #fef3c7;
            color: #d97706;
        }
        .news-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.5;
            flex: 1;
        }
        .news-card h3 a {
            color: inherit;
        }
        .news-card h3 a:hover {
            color: var(--primary);
        }
        .news-card .card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .card-footer-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .news-card .card-footer-link:hover {
            gap: 12px;
        }

        /* ===== 特色文章 ===== */
        .featured-article {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            background: var(--bg-body);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .featured-article:hover {
            box-shadow: var(--shadow);
        }
        .featured-article .fa-img {
            width: 100%;
            height: 100%;
            min-height: 340px;
            object-fit: cover;
        }
        .featured-article .fa-body {
            padding: 40px 40px 40px 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-article .fa-body .fa-meta {
            display: flex;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .featured-article .fa-body .fa-meta .badge {
            background: var(--accent-light);
            color: var(--accent);
            padding: 2px 14px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 12px;
        }
        .featured-article .fa-body h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            line-height: 1.4;
        }
        .featured-article .fa-body p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        /* ===== 数据统计 ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            background: var(--bg-dark);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
        }
        .stats-row .stat-item {
            text-align: center;
            color: var(--text-inverse);
        }
        .stats-row .stat-item .num {
            font-size: 36px;
            font-weight: 800;
            background: linear-gradient(135deg, #60a5fa, #a78bfa);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stats-row .stat-item .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
        }

        /* ===== 视频/多媒体 ===== */
        .media-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .media-item {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--bg-section);
            cursor: pointer;
        }
        .media-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .media-item:hover img {
            transform: scale(1.04);
        }
        .media-item .play-overlay {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 0, 0, 0.25);
            transition: background var(--transition);
        }
        .media-item:hover .play-overlay {
            background: rgba(0, 0, 0, 0.4);
        }
        .media-item .play-overlay i {
            font-size: 48px;
            color: #fff;
            filter: drop-shadow(0 4px 16px rgba(0, 0, 0, 0.3));
        }
        .media-item .media-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px 24px 16px;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.75));
            color: #fff;
            font-weight: 600;
            font-size: 15px;
        }

        /* ===== 订阅CTA ===== */
        .cta-newsletter {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            color: var(--text-inverse);
        }
        .cta-newsletter h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-newsletter p {
            font-size: 16px;
            opacity: 0.85;
            max-width: 520px;
            margin: 0 auto 28px;
        }
        .cta-newsletter .newsletter-form {
            display: flex;
            max-width: 480px;
            margin: 0 auto;
            gap: 12px;
        }
        .cta-newsletter .newsletter-form input {
            flex: 1;
            padding: 14px 20px;
            border-radius: 50px;
            border: none;
            font-size: 15px;
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            backdrop-filter: blur(4px);
        }
        .cta-newsletter .newsletter-form input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }
        .cta-newsletter .newsletter-form input:focus {
            background: rgba(255, 255, 255, 0.25);
        }
        .cta-newsletter .newsletter-form .btn-cta {
            background: #fff;
            color: var(--primary) !important;
            padding: 14px 32px;
            flex-shrink: 0;
        }
        .cta-newsletter .newsletter-form .btn-cta:hover {
            background: var(--accent);
            color: #fff !important;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }

        /* ===== 常见问题 FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 20px 0;
        }
        .faq-item:first-child {
            padding-top: 0;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 17px;
            color: var(--text-primary);
            padding: 4px 0;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 18px;
            color: var(--text-muted);
            transition: transform var(--transition);
        }
        .faq-question.open i {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px 0 0;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-answer.open {
            max-height: 300px;
            padding-top: 12px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
            font-size: 20px;
        }
        .footer-brand .logo i {
            color: #60a5fa;
        }
        .footer-brand .logo span {
            background: none;
            -webkit-text-fill-color: #fff;
            background-clip: unset;
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            padding: 5px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: #60a5fa;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== 分页 ===== */
        .pagination-wrap {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 48px;
        }
        .pagination-wrap .page-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 14px;
            transition: all var(--transition);
        }
        .pagination-wrap .page-link:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .pagination-wrap .page-link.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .pagination-wrap .page-link.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-article {
                grid-template-columns: 1fr;
            }
            .featured-article .fa-body {
                padding: 32px 24px;
            }
            .featured-article .fa-img {
                min-height: 240px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 16px;
                padding: 36px 24px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .nav-main {
                display: none;
            }
            .header-actions .search-box {
                display: none;
            }
            .header-actions .btn-cta {
                display: none;
            }
            .menu-toggle {
                display: block;
            }
            .mobile-nav {
                display: block;
            }

            .page-banner {
                padding: 60px 0 48px;
                min-height: 240px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner p {
                font-size: 16px;
            }

            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 24px;
            }

            .news-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .media-grid {
                grid-template-columns: 1fr;
            }
            .cta-newsletter {
                padding: 36px 24px;
            }
            .cta-newsletter h2 {
                font-size: 24px;
            }
            .cta-newsletter .newsletter-form {
                flex-direction: column;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                padding: 28px 16px;
            }
            .stats-row .stat-item .num {
                font-size: 28px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
            .tag-filter {
                gap: 8px;
            }
            .tag-filter .tag {
                padding: 6px 16px;
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .page-banner h1 {
                font-size: 24px;
            }
            .section-title {
                font-size: 20px;
            }
            .news-card .card-body {
                padding: 16px 18px 20px;
            }
            .news-card h3 {
                font-size: 16px;
            }
            .featured-article .fa-body h2 {
                font-size: 20px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 20px 12px;
                padding: 24px 16px;
            }
            .stats-row .stat-item .num {
                font-size: 24px;
            }
        }

        /* ===== 辅助 ===== */
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mt-40 {
            margin-top: 40px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .gap-12 {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }