/* roulang page: index */
:root {
            --primary: #2F6BFF;
            --primary-hover: #1E4FCC;
            --primary-light: #EAF0FF;
            --primary-soft: #F5F8FF;
            --accent: #FFB020;
            --accent-light: #FFF4DE;
            --bg: #F7F9FC;
            --bg-white: #FFFFFF;
            --bg-foot: #EEF2F8;
            --text-dark: #0F172A;
            --text-mid: #475569;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border: #E6EDF5;
            --border-strong: #CBD5E1;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.10);
            --space-1: 8px;
            --space-2: 16px;
            --space-3: 24px;
            --space-4: 40px;
            --space-5: 64px;
            --space-6: 80px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', sans-serif;
            --transition: 180ms ease;
            --max-width: 1200px;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-dark);
            line-height: 1.75;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover,
        a:focus {
            color: var(--primary-hover);
            text-decoration: none;
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

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

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

        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .section {
            padding: var(--space-5) 0;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px 0;
            letter-spacing: -0.5px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            margin: 0 0 32px 0;
            line-height: 1.75;
            max-width: 700px;
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-head.center {
            text-align: center;
        }

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

        .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        .eyebrow.accent {
            color: #8A6A00;
            background: var(--accent-light);
        }

        /* ========== Header 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: wrap;
        }

        .logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .logo:hover,
        .logo:focus {
            color: var(--text-dark);
        }

        .logo .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-white);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-md);
            padding: 0 14px;
            height: 42px;
            min-width: 220px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 107, 255, 0.12);
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            color: var(--text-dark);
            font-size: 14px;
            flex: 1;
            padding: 0 8px;
            min-width: 0;
        }

        .search-box input::placeholder {
            color: var(--text-light);
        }

        .search-box .search-icon {
            color: var(--text-muted);
            font-size: 14px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            cursor: pointer;
            transition: background var(--transition), color var(--transition), box-shadow var(--transition), border-color var(--transition), transform var(--transition);
            white-space: nowrap;
            text-align: center;
            line-height: 1.4;
        }

        .btn:active {
            transform: translateY(1px);
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(47, 107, 255, 0.25);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
            box-shadow: 0 6px 16px rgba(47, 107, 255, 0.35);
        }

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

        .btn-outline:hover,
        .btn-outline:focus {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary-hover);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            border-radius: 8px;
        }

        .btn-lg {
            padding: 14px 28px;
            font-size: 16px;
            border-radius: 12px;
        }

        .nav-tabs {
            border-top: 1px solid var(--border);
            padding: 10px 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-strong) transparent;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: nowrap;
        }

        .nav-tabs::-webkit-scrollbar {
            height: 3px;
        }

        .nav-tabs::-webkit-scrollbar-thumb {
            background: var(--border-strong);
            border-radius: 10px;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-mid);
            white-space: nowrap;
            transition: background var(--transition), color var(--transition), border-color var(--transition);
            border: 1px solid transparent;
        }

        .nav-tab:hover,
        .nav-tab:focus {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .nav-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        .nav-tab.active:hover,
        .nav-tab.active:focus {
            color: #fff;
            background: var(--primary-hover);
        }

        /* ========== Hero 资源下载站 ========== */
        .hero {
            padding: var(--space-5) 0 var(--space-5);
            background: linear-gradient(180deg, #FFFFFF 0%, var(--primary-soft) 100%);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(47, 107, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(255, 176, 32, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

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

        .hero-text {
            padding-right: 8px;
        }

        .hero-title {
            font-size: 42px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.25;
            letter-spacing: -0.8px;
            margin: 0 0 20px 0;
        }

        .hero-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.85;
            margin: 0 0 28px 0;
            max-width: 520px;
        }

        .hero-search {
            margin: 0 0 24px 0;
            max-width: 540px;
        }

        .hero-search .search-box {
            height: 54px;
            border-radius: 14px;
            box-shadow: var(--shadow-md);
            padding: 0 18px;
            min-width: 0;
            width: 100%;
        }

        .hero-search .search-box input {
            font-size: 16px;
        }

        .hero-search .search-box .search-icon {
            font-size: 16px;
        }

        .hero-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin: 0 0 24px 0;
        }

        .hero-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-value {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.2;
        }

        .hero-stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .hero-visual {
            position: relative;
        }

        .hero-image-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
            aspect-ratio: 4 / 3;
        }

        .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hero-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            background: rgba(255, 255, 255, 0.95);
            border-radius: var(--radius-md);
            padding: 10px 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-dark);
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-badge .badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #22C55E;
            display: inline-block;
        }

        .hero-quick-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }

        .hero-quick-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 6px 14px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            font-size: 13px;
            color: var(--text-mid);
            transition: background var(--transition), border-color var(--transition), color var(--transition);
        }

        .hero-quick-tag:hover,
        .hero-quick-tag:focus {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }

        /* ========== 痛点区块 ========== */
        .pain-section {
            background: var(--bg-white);
        }

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

        .pain-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
        }

        .pain-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border-strong);
        }

        .pain-number {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-light);
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 12px;
        }

        .pain-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 6px 0;
        }

        .pain-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== 解决方案区块 ========== */
        .solution-section {
            background: var(--primary-soft);
        }

        .solution-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .solution-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 16 / 10;
        }

        .solution-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .solution-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .solution-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--text-mid);
            line-height: 1.7;
        }

        .solution-list li .check-icon {
            width: 22px;
            height: 22px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            flex-shrink: 0;
            margin-top: 3px;
        }

        /* ========== 关于/KPI ========== */
        .about-section {
            background: var(--bg-white);
        }

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

        .about-text .section-title {
            margin-bottom: 16px;
        }

        .about-desc {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.85;
            margin: 0 0 20px 0;
        }

        .kpi-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .kpi-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            text-align: center;
            transition: box-shadow var(--transition), transform var(--transition);
        }

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

        .kpi-value {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .kpi-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .kpi-note {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 4px;
        }

        /* ========== 资讯动态 ========== */
        .news-section {
            background: var(--bg);
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            gap: 32px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-list-header {
            text-align: center;
            margin-bottom: 24px;
        }

        .news-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 18px 8px;
            border-bottom: 1px solid var(--border);
            transition: background var(--transition);
        }

        .news-item:hover {
            background: var(--bg-white);
        }

        .news-item-meta {
            display: flex;
            gap: 8px;
            align-items: center;
            flex-shrink: 0;
            min-width: 80px;
            flex-direction: column;
            align-items: center;
        }

        .news-date {
            font-size: 12px;
            color: var(--text-light);
            white-space: nowrap;
        }

        .news-tag {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 4px;
            background: var(--primary-light);
            color: var(--primary);
            white-space: nowrap;
        }

        .news-item-content {
            flex: 1;
        }

        .news-item-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 6px 0;
            line-height: 1.5;
        }

        .news-item-title a {
            color: var(--text-dark);
            transition: color var(--transition);
        }

        .news-item-title a:hover {
            color: var(--primary);
        }

        .news-item-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .news-sidebar-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
        }

        .news-sidebar-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 14px 0;
        }

        .news-sidebar-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .news-sidebar-list li {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.5;
            padding-left: 14px;
            position: relative;
        }

        .news-sidebar-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 6px;
            height: 6px;
            background: var(--primary);
            border-radius: 50%;
        }

        /* ========== 服务区块 ========== */
        .services-section {
            background: var(--bg-white);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
        }

        .service-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border-strong);
        }

        .service-card-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--primary-soft);
        }

        .service-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 240ms ease;
        }

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

        .service-card-body {
            padding: 20px;
        }

        .service-card-tag {
            font-size: 11px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 3px 10px;
            border-radius: 4px;
            display: inline-block;
            margin-bottom: 10px;
        }

        .service-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px 0;
            line-height: 1.4;
        }

        .service-card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 16px 0;
        }

        .service-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: gap var(--transition), color var(--transition);
        }

        .service-card-link:hover {
            color: var(--primary-hover);
            gap: 8px;
        }

        /* ========== 用户评价 ========== */
        .testimonials-section {
            background: var(--primary-soft);
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .testimonial-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
        }

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

        .testimonial-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .testimonial-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            overflow: hidden;
            background: var(--primary-light);
            flex-shrink: 0;
        }

        .testimonial-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .testimonial-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.2;
        }

        .testimonial-role {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 2px;
        }

        .testimonial-text {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.75;
            margin: 0;
        }

        .testimonial-stars {
            color: var(--accent);
            font-size: 13px;
            margin-bottom: 10px;
        }

        /* ========== App下载 ========== */
        .app-section {
            background: var(--bg-white);
        }

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

        .app-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4 / 3;
        }

        .app-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .app-features {
            list-style: none;
            padding: 0;
            margin: 0 0 24px 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .app-features li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--text-mid);
            line-height: 1.7;
        }

        .app-features li .feature-icon {
            width: 24px;
            height: 24px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            flex-shrink: 0;
            margin-top: 3px;
        }

        /* ========== 合作伙伴标签 ========== */
        .partners-section {
            background: var(--bg);
        }

        .partners-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .partner-tag {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            transition: box-shadow var(--transition), border-color var(--transition);
        }

        .partner-tag:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--border-strong);
        }

        .partner-tag-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            flex-shrink: 0;
        }

        .partner-tag-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 4px 0;
        }

        .partner-tag-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
            margin: 0;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-white);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 0;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            gap: 16px;
            transition: color var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
        }

        .faq-question:hover,
        .faq-question:focus {
            color: var(--primary);
        }

        .faq-question:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: transform var(--transition);
        }

        .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 240ms ease, padding 240ms ease;
            padding: 0 0;
        }

        .faq-answer-inner {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            padding: 0 0 20px 0;
            max-width: 700px;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
        }

        /* ========== CTA区块 ========== */
        .cta-section {
            background: var(--primary-light);
            padding: var(--space-5) 0;
        }

        .cta-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            box-shadow: var(--shadow-lg);
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .cta-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px 0;
            line-height: 1.3;
        }

        .cta-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.75;
            margin: 0 0 24px 0;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form input {
            flex: 1;
            min-width: 220px;
            height: 48px;
            border: 1px solid var(--border-strong);
            border-radius: 10px;
            padding: 0 16px;
            font-size: 15px;
            color: var(--text-dark);
            background: var(--bg-white);
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .cta-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 107, 255, 0.12);
            outline: none;
        }

        /* ========== 品牌介绍 ========== */
        .brand-section {
            background: var(--bg);
        }

        .brand-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-sm);
            max-width: 900px;
            margin: 0 auto;
        }

        .brand-card .section-title {
            margin-bottom: 16px;
        }

        .brand-desc {
            font-size: 15px;
            color: var(--text-mid);
            line-height: 1.9;
            margin: 0 0 16px 0;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-foot);
            border-top: 1px solid var(--border);
            padding: 48px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .logo {
            font-size: 20px;
            margin-bottom: 10px;
        }

        .footer-brand-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 16px 0;
            max-width: 300px;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 14px 0;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .footer-links li a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-light);
        }

        .footer-bottom a {
            color: var(--text-muted);
            font-size: 13px;
        }

        .footer-bottom a:hover {
            color: var(--primary);
        }

        .footer-bottom-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .hero-title {
                font-size: 34px;
            }

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

            .solution-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .about-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

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

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

            .app-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .header-top {
                padding: 10px 0;
            }

            .search-box {
                min-width: 0;
                width: 100%;
                max-width: 220px;
            }

            .logo {
                font-size: 18px;
            }

            .logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }

            .hero {
                padding: 40px 0;
            }

            .hero-title {
                font-size: 28px;
                letter-spacing: -0.5px;
            }

            .hero-desc {
                font-size: 15px;
            }

            .hero-stats {
                gap: 16px;
            }

            .hero-stat-value {
                font-size: 20px;
            }

            .section {
                padding: 40px 0;
            }

            .section-title {
                font-size: 22px;
            }

            .pain-grid {
                grid-template-columns: 1fr;
            }

            .services-grid {
                grid-template-columns: 1fr;
            }

            .testimonials-grid {
                grid-template-columns: 1fr;
            }

            .partners-grid {
                grid-template-columns: 1fr;
            }

            .cta-card {
                padding: 32px 20px;
            }

            .cta-title {
                font-size: 22px;
            }

            .brand-card {
                padding: 24px 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }

            .footer-bottom-links {
                justify-content: center;
            }

            .nav-tab {
                padding: 7px 14px;
                font-size: 13px;
            }

            .kpi-grid {
                grid-template-columns: 1fr 1fr;
            }

            .news-item {
                flex-direction: column;
                gap: 6px;
            }

            .news-item-meta {
                flex-direction: row;
                gap: 10px;
                min-width: auto;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .hero-title {
                font-size: 24px;
            }

            .hero-desc {
                font-size: 14px;
            }

            .btn-lg {
                padding: 12px 20px;
                font-size: 14px;
            }

            .hero-search .search-box {
                height: 46px;
            }

            .section-title {
                font-size: 20px;
            }

            .section-subtitle {
                font-size: 14px;
            }

            .kpi-value {
                font-size: 26px;
            }

            .testimonial-card {
                padding: 18px;
            }

            .cta-form {
                flex-direction: column;
            }

            .cta-form input {
                min-width: auto;
                width: 100%;
            }

            .cta-form .btn {
                width: 100%;
            }

            .header-actions .btn {
                padding: 8px 12px;
                font-size: 13px;
            }

            .header-actions .search-box {
                max-width: 150px;
                height: 36px;
                padding: 0 10px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2F6BFF;
            --primary-hover: #1E4FCC;
            --primary-light: #EAF0FF;
            --primary-soft: #F5F8FF;
            --accent: #FFB020;
            --accent-light: #FFF4DE;
            --bg: #F7F9FC;
            --bg-white: #FFFFFF;
            --bg-foot: #EEF2F8;
            --text-dark: #0F172A;
            --text-mid: #475569;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border: #E6EDF5;
            --border-strong: #CBD5E1;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.10);
            --space-1: 8px;
            --space-2: 16px;
            --space-3: 24px;
            --space-4: 40px;
            --space-5: 64px;
            --space-6: 80px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', sans-serif;
            --transition: 180ms ease;
            --max-width: 1200px;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-dark);
            line-height: 1.75;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary-hover);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

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

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

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

        .section {
            padding: var(--space-5) 0;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px 0;
            letter-spacing: -0.5px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            margin: 0 0 32px 0;
            line-height: 1.75;
            max-width: 700px;
        }

        .section-head {
            margin-bottom: 40px;
        }
        .section-head.center {
            text-align: center;
        }
        .section-head.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .eyebrow.accent {
            color: #8A6A00;
            background: var(--accent-light);
        }

        /* ========== Header 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: wrap;
        }
        .logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .logo:hover,
        .logo:focus {
            color: var(--text-dark);
        }
        .logo .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-white);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-md);
            padding: 0 14px;
            height: 42px;
            min-width: 220px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 107, 255, 0.12);
        }
        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            color: var(--text-dark);
            font-size: 14px;
            width: 100%;
            padding: 0 8px;
        }
        .search-box input::placeholder {
            color: var(--text-light);
        }
        .search-icon {
            color: var(--text-light);
            font-size: 14px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: all var(--transition);
            white-space: nowrap;
            text-align: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 8px 20px rgba(47, 107, 255, 0.25);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--primary-light);
            color: var(--primary-hover);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 8px;
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }
        .btn-block {
            width: 100%;
        }

        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 0 12px 0;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--border-strong) transparent;
            -webkit-overflow-scrolling: touch;
        }
        .nav-tabs::-webkit-scrollbar {
            height: 4px;
        }
        .nav-tabs::-webkit-scrollbar-thumb {
            background: var(--border-strong);
            border-radius: 4px;
        }
        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-mid);
            white-space: nowrap;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .nav-tab:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-tab.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .nav-tab:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ========== 分类英雄区 ========== */
        .category-hero {
            background: var(--primary-soft);
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(47, 107, 255, 0.10) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .category-hero-inner {
            padding: 48px 0;
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .category-hero-text {
            flex: 1 1 55%;
            min-width: 280px;
        }
        .category-hero-visual {
            flex: 1 1 35%;
            min-width: 240px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
        }
        .category-hero h1 {
            font-size: 38px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 16px 0;
            letter-spacing: -1px;
            line-height: 1.25;
        }
        .category-hero p {
            font-size: 16px;
            color: var(--text-muted);
            margin: 0 0 24px 0;
            max-width: 560px;
            line-height: 1.8;
        }
        .category-hero-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .category-hero-meta span {
            font-size: 13px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .category-hero-meta i {
            color: var(--primary);
        }

        /* ========== 统计条 ========== */
        .stats-bar {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 24px 32px;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ========== 内容卡片网格 ========== */
        .content-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .content-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            cursor: pointer;
        }
        .content-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--border-strong);
        }
        .content-card-image {
            position: relative;
            width: 100%;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--primary-soft);
        }
        .content-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 240ms ease;
        }
        .content-card:hover .content-card-image img {
            transform: scale(1.04);
        }
        .content-card-body {
            padding: 20px 20px 16px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .content-card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .content-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px 0;
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition);
        }
        .content-card:hover .content-card-title {
            color: var(--primary);
        }
        .content-card-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 16px 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .content-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }
        .content-card-footer .view-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .content-card-footer .view-link:hover {
            color: var(--primary-hover);
        }

        /* ========== 热点速览横向块 ========== */
        .hot-strip {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 20px 24px;
            margin-bottom: 32px;
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .hot-strip-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            background: var(--accent-light);
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }
        .hot-strip-text {
            flex: 1;
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.7;
            min-width: 200px;
        }
        .hot-strip-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            white-space: nowrap;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 0;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            text-align: left;
            background: transparent;
            border: none;
            width: 100%;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            color: var(--text-light);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 240ms ease, padding 240ms ease;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 20px;
        }

        /* ========== CTA 区块 ========== */
        .cta-block {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -40%;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-block .container {
            position: relative;
            z-index: 1;
        }
        .cta-block h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px 0;
            letter-spacing: -0.5px;
        }
        .cta-block p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 28px 0;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.75;
        }
        .cta-block .btn-white {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            border: none;
        }
        .cta-block .btn-white:hover {
            background: var(--primary-light);
            color: var(--primary-hover);
        }
        .cta-block .btn-outline-white {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        .cta-block .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }
        .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--bg-foot);
            border-top: 1px solid var(--border);
            padding: 48px 0 24px 0;
            margin-top: var(--space-5);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            margin-bottom: 12px;
        }
        .footer-brand-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin: 0 0 12px 0;
            max-width: 280px;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 14px 0;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom-text {
            font-size: 13px;
            color: var(--text-light);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 4px;
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
        }
        .footer-bottom-links a {
            color: var(--text-muted);
        }
        .footer-bottom-links a:hover {
            color: var(--primary);
        }

        /* ========== 响应式 ========== */
        @media screen and (max-width: 1024px) {
            .content-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .category-hero h1 {
                font-size: 32px;
            }
        }

        @media screen and (max-width: 768px) {
            .header-top {
                padding: 10px 0;
            }
            .search-box {
                min-width: 140px;
                width: 140px;
            }
            .search-box input::placeholder {
                font-size: 12px;
            }
            .section {
                padding: var(--space-4) 0;
            }
            .section-title {
                font-size: 22px;
            }
            .category-hero-inner {
                padding: 32px 0;
                flex-direction: column;
                gap: 24px;
            }
            .category-hero-text {
                flex: 1 1 100%;
            }
            .category-hero-visual {
                flex: 1 1 100%;
                min-width: 100%;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .content-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-bar {
                padding: 16px 20px;
                gap: 20px;
            }
            .stat-number {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-block {
                padding: 32px 24px;
            }
            .cta-block h2 {
                font-size: 22px;
            }
        }

        @media screen and (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .header-top {
                gap: 8px;
            }
            .logo {
                font-size: 18px;
            }
            .logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
            .search-box {
                display: none;
            }
            .btn-sm {
                padding: 7px 12px;
                font-size: 12px;
            }
            .nav-tabs {
                gap: 4px;
            }
            .nav-tab {
                padding: 6px 12px;
                font-size: 12px;
            }
            .section-title {
                font-size: 20px;
            }
            .content-card-body {
                padding: 14px;
            }
            .stats-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 16px;
            }
            .hot-strip {
                padding: 14px 16px;
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-actions .btn {
                width: 100%;
            }
        }

        /* ========== 分页控件 ========== */
        .pagination-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .pagination-item {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 38px;
            height: 38px;
            padding: 0 10px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-mid);
            background: var(--bg-white);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: all var(--transition);
        }
        .pagination-item:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .pagination-item.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .pagination-item.disabled {
            opacity: 0.5;
            pointer-events: none;
        }

/* roulang page: category2 */
:root {
            --primary: #2F6BFF;
            --primary-hover: #1E4FCC;
            --primary-light: #EAF0FF;
            --primary-soft: #F5F8FF;
            --accent: #FFB020;
            --accent-light: #FFF4DE;
            --bg: #F7F9FC;
            --bg-white: #FFFFFF;
            --bg-foot: #EEF2F8;
            --text-dark: #0F172A;
            --text-mid: #475569;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border: #E6EDF5;
            --border-strong: #CBD5E1;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.10);
            --space-1: 8px;
            --space-2: 16px;
            --space-3: 24px;
            --space-4: 40px;
            --space-5: 64px;
            --space-6: 80px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', sans-serif;
            --transition: 180ms ease;
            --max-width: 1200px;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-dark);
            line-height: 1.75;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover,
        a:focus {
            color: var(--primary-hover);
            text-decoration: none;
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

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

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

        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .section {
            padding: var(--space-5) 0;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px 0;
            letter-spacing: -0.5px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            margin: 0 0 32px 0;
            line-height: 1.75;
            max-width: 700px;
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-head.center {
            text-align: center;
        }

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

        .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .eyebrow.accent {
            color: #8A6A00;
            background: var(--accent-light);
        }

        /* ========== Header 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--border);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: wrap;
        }

        .logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .logo:hover,
        .logo:focus {
            color: var(--text-dark);
        }

        .logo .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-white);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-md);
            padding: 0 14px;
            height: 42px;
            min-width: 220px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 107, 255, 0.12);
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            color: var(--text-dark);
            flex: 1;
            font-size: 14px;
            padding: 0 8px;
            min-width: 0;
        }

        .search-box input::placeholder {
            color: var(--text-light);
        }

        .search-box .search-icon {
            color: var(--text-muted);
            font-size: 14px;
            flex-shrink: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 14px;
            padding: 12px 24px;
            border-radius: 10px;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            line-height: 1.4;
            white-space: nowrap;
        }

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

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 4px 12px rgba(47, 107, 255, 0.25);
        }

        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--border-strong);
        }

        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--primary-light);
            color: var(--primary-hover);
            border-color: var(--primary);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 8px;
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
            border-radius: 10px;
        }

        .nav-tabs {
            display: flex;
            gap: 10px;
            padding: 10px 0 14px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            border-top: 1px solid var(--border);
        }

        .nav-tabs::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-mid);
            background: var(--bg-white);
            border: 1px solid var(--border);
            white-space: nowrap;
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .nav-tab:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--primary-light);
        }

        .nav-tab.active {
            color: #fff;
            background: var(--primary);
            border-color: var(--primary);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(47, 107, 255, 0.18);
        }

        /* ========== Hero ========== */
        .page-hero {
            padding: var(--space-5) 0 var(--space-4);
            background: linear-gradient(135deg, var(--primary-soft) 0%, var(--bg-white) 60%, var(--bg) 100%);
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: var(--primary-light);
            border-radius: 50%;
            opacity: 0.5;
            pointer-events: none;
        }

        .page-hero .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .hero-breadcrumb a {
            color: var(--text-muted);
        }

        .hero-breadcrumb a:hover {
            color: var(--primary);
        }

        .hero-breadcrumb .sep {
            color: var(--text-light);
        }

        .page-hero h1 {
            font-size: 38px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 16px 0;
            line-height: 1.3;
            letter-spacing: -0.5px;
        }

        .page-hero .hero-desc {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.85;
            margin: 0 0 28px 0;
            max-width: 560px;
        }

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

        .hero-visual {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            min-height: 340px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 340px;
        }

        .hero-visual .visual-tag {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(15, 23, 42, 0.75);
            color: #fff;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 500;
            backdrop-filter: blur(4px);
        }

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

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

        .content-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--border-strong);
        }

        .content-card .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--primary-light);
        }

        .content-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 240ms ease;
        }

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

        .content-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            font-size: 11px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            backdrop-filter: blur(4px);
        }

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

        .card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px 0;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition);
        }

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

        .card-body .card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 16px 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            font-size: 12px;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }

        .card-meta .tag {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 500;
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            font-size: 11px;
        }

        .card-meta .date {
            white-space: nowrap;
        }

        /* ========== 卖点 ========== */
        .feature-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .feature-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .feature-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--primary);
        }

        .feature-icon {
            width: 44px;
            height: 44px;
            background: var(--primary-light);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            margin-bottom: 16px;
        }

        .feature-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px 0;
            line-height: 1.4;
        }

        .feature-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin: 0;
        }

        /* ========== 场景 ========== */
        .scene-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .scene-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            text-align: left;
        }

        .scene-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .scene-card .scene-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            letter-spacing: -1px;
        }

        .scene-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px 0;
        }

        .scene-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin: 0;
        }

        /* ========== 流程 ========== */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .step-item {
            text-align: center;
            padding: 24px 16px;
            position: relative;
        }

        .step-dot {
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            margin: 0 auto 12px;
            position: relative;
            z-index: 2;
            box-shadow: 0 4px 12px rgba(47, 107, 255, 0.2);
        }

        .step-item h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 6px 0;
        }

        .step-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== 资讯动态 ========== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .news-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            transition: all var(--transition);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            box-shadow: var(--shadow-sm);
        }

        .news-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-strong);
            transform: translateY(-2px);
        }

        .news-item .news-icon {
            width: 36px;
            height: 36px;
            background: var(--accent-light);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #8A6A00;
            font-size: 14px;
            flex-shrink: 0;
        }

        .news-item .news-content {
            flex: 1;
        }

        .news-item .news-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 6px 0;
            line-height: 1.5;
        }

        .news-item .news-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== 用户评价 ========== */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .review-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

        .review-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-strong);
            transform: translateY(-2px);
        }

        .review-card .review-stars {
            color: var(--accent);
            font-size: 14px;
            margin-bottom: 12px;
            letter-spacing: 2px;
        }

        .review-card .review-text {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.8;
            margin: 0 0 16px 0;
        }

        .review-card .review-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .review-card .review-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
        }

        .review-card .review-author-name {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-dark);
        }

        .review-card .review-author-role {
            font-size: 12px;
            color: var(--text-light);
        }

        /* ========== 合作伙伴标签 ========== */
        .partner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .partner-tag {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 10px 22px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-mid);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: var(--shadow-sm);
        }

        .partner-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
            box-shadow: var(--shadow-md);
        }

        .partner-tag .partner-icon {
            font-size: 14px;
        }

        .partner-desc {
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
            margin: 16px auto 0;
            max-width: 600px;
            line-height: 1.75;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--border-strong);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 20px;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            text-align: left;
            transition: color var(--transition);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-toggle {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 12px;
            flex-shrink: 0;
            transition: transform var(--transition);
        }

        .faq-item.open .faq-question .faq-toggle {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* ========== 品牌介绍 ========== */
        .brand-intro {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-sm);
        }

        .brand-intro h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 16px 0;
        }

        .brand-intro p {
            font-size: 15px;
            color: var(--text-mid);
            line-height: 1.9;
            margin: 0 0 14px 0;
        }

        .brand-intro p:last-child {
            margin-bottom: 0;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--primary-soft);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: var(--primary-light);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px 0;
            letter-spacing: -0.5px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 16px;
            color: var(--text-muted);
            margin: 0 0 24px 0;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            position: relative;
            z-index: 1;
        }

        .cta-section .cta-actions {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* ========== 分页 ========== */
        .pagination-row {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .pagination-row .page-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 36px;
            height: 36px;
            padding: 0 12px;
            border-radius: var(--radius-sm);
            background: var(--bg-white);
            border: 1px solid var(--border);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-mid);
            transition: all var(--transition);
        }

        .pagination-row .page-link:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .pagination-row .page-link.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        .pagination-row .page-link.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-foot);
            border-top: 1px solid var(--border);
            padding: var(--space-5) 0 0;
            margin-top: var(--space-5);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
        }
        .footer-brand .logo {
            margin-bottom: 12px;
        }
        .footer-brand-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
            max-width: 280px;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 14px 0;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom-text {
            display: flex;
            flex-wrap: wrap;
            gap: 0;
            align-items: center;
        }
        .footer-bottom-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: var(--text-muted);
            font-size: 13px;
        }
        .footer-bottom-links a:hover {
            color: var(--primary);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .review-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .page-hero .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-visual {
                min-height: 280px;
            }
            .hero-visual img {
                min-height: 280px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--space-4) 0;
            }
            .section-title {
                font-size: 24px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .header-top {
                flex-wrap: wrap;
            }
            .search-box {
                min-width: 160px;
                flex: 1;
            }
            .news-list {
                grid-template-columns: 1fr;
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
            .feature-row {
                grid-template-columns: 1fr;
            }
            .scene-row {
                grid-template-columns: 1fr;
            }
            .steps-row {
                grid-template-columns: 1fr 1fr;
            }
            .review-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .brand-intro {
                padding: 24px;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero .hero-desc {
                font-size: 15px;
            }
            .nav-tabs {
                gap: 6px;
                padding: 8px 0 12px;
            }
            .nav-tab {
                padding: 6px 14px;
                font-size: 13px;
            }
            .steps-row {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .section-title {
                font-size: 22px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #2F6BFF;
            --primary-hover: #1E4FCC;
            --primary-light: #EAF0FF;
            --primary-soft: #F5F8FF;
            --accent: #FFB020;
            --accent-light: #FFF4DE;
            --bg: #F7F9FC;
            --bg-white: #FFFFFF;
            --bg-foot: #EEF2F8;
            --text-dark: #0F172A;
            --text-mid: #475569;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border: #E6EDF5;
            --border-strong: #CBD5E1;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.10);
            --space-1: 8px;
            --space-2: 16px;
            --space-3: 24px;
            --space-4: 40px;
            --space-5: 64px;
            --space-6: 80px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', sans-serif;
            --transition: 180ms ease;
            --max-width: 1200px;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-dark);
            line-height: 1.75;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary-hover);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--space-5) 0;
        }
        .section-sm {
            padding: var(--space-4) 0;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px 0;
            letter-spacing: -0.5px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            margin: 0 0 32px 0;
            line-height: 1.75;
            max-width: 720px;
        }
        .section-head {
            margin-bottom: 40px;
        }
        .section-head.center {
            text-align: center;
        }
        .section-head.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }
        .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .eyebrow.accent {
            color: #8A6A00;
            background: var(--accent-light);
        }

        /* ========== Header 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: wrap;
        }
        .logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .logo:hover,
        .logo:focus {
            color: var(--text-dark);
        }
        .logo .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-white);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-md);
            padding: 0 14px;
            height: 42px;
            min-width: 220px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 107, 255, 0.12);
        }
        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            color: var(--text-dark);
            width: 100%;
            padding: 0 0 0 8px;
            font-size: 14px;
        }
        .search-box input::placeholder {
            color: var(--text-light);
        }
        .search-icon {
            color: var(--text-light);
            font-size: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: none;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-sm);
            transition: background var(--transition), color var(--transition), box-shadow var(--transition), border-color var(--transition), transform var(--transition);
            text-decoration: none;
            padding: 12px 24px;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 4px 14px rgba(47, 107, 255, 0.3);
            transform: translateY(-1px);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--primary-light);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            border-radius: var(--radius-sm);
        }
        .btn-lg {
            padding: 16px 32px;
            font-size: 17px;
            border-radius: var(--radius-md);
        }
        .btn-block {
            width: 100%;
            display: flex;
        }

        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 0 0 12px 0;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav-tabs::-webkit-scrollbar {
            display: none;
        }
        .nav-tab {
            display: inline-flex;
            align-items: center;
            padding: 7px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-mid);
            background: transparent;
            border: 1px solid transparent;
            white-space: nowrap;
            transition: background var(--transition), color var(--transition), border-color var(--transition);
        }
        .nav-tab:hover,
        .nav-tab:focus {
            color: var(--primary);
            background: var(--primary-soft);
        }
        .nav-tab.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .nav-tab.active:hover,
        .nav-tab.active:focus {
            background: var(--primary-hover);
            color: #fff;
        }

        /* ========== 分类头部 Hero ========== */
        .category-hero {
            background: linear-gradient(135deg, #0F172A 0%, #1E3A5F 55%, #2F6BFF 100%);
            color: #fff;
            padding: var(--space-5) 0;
            position: relative;
            overflow: hidden;
            margin-bottom: 0;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(47, 107, 255, 0.35);
            z-index: 1;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 176, 32, 0.18);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero-content {
            max-width: 680px;
            padding: 32px 0;
        }
        .category-hero .eyebrow {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }
        .category-hero h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            margin: 0 0 16px 0;
            letter-spacing: -0.5px;
            color: #fff;
        }
        .category-hero p {
            font-size: 17px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 24px 0;
        }
        .category-hero .btn {
            margin-right: 12px;
        }
        .category-hero .btn-primary {
            background: #fff;
            color: var(--primary);
        }
        .category-hero .btn-primary:hover,
        .category-hero .btn-primary:focus {
            background: var(--primary-light);
            color: var(--primary-hover);
            box-shadow: 0 4px 18px rgba(255, 255, 255, 0.25);
        }
        .category-hero .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        .category-hero .btn-outline-light:hover,
        .category-hero .btn-outline-light:focus {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border-color: #fff;
        }
        .hero-badge-group {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 18px;
        }
        .hero-badge {
            background: rgba(255, 255, 255, 0.14);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.22);
            color: #fff;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .hero-badge .fa-solid {
            font-size: 11px;
            color: var(--accent);
        }

        /* ========== 信息卡片网格 ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .card-grid-2 {
            grid-template-columns: repeat(2, 1fr);
        }
        .card-grid-4 {
            grid-template-columns: repeat(4, 1fr);
        }
        .card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-strong);
        }
        .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--bg-foot);
        }
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 240ms ease;
        }
        .card:hover .card-img img {
            transform: scale(1.05);
        }
        .card-img .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            z-index: 2;
            backdrop-filter: blur(4px);
        }
        .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px 0;
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 16px 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: auto;
            padding-top: 12px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-light);
        }
        .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .card-link {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-top: 12px;
            transition: color var(--transition), gap var(--transition);
        }
        .card-link:hover,
        .card-link:focus {
            color: var(--primary-hover);
            gap: 10px;
        }

        /* ========== 横向信息卡 ========== */
        .info-row {
            display: flex;
            gap: 24px;
            align-items: center;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .info-row:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .info-row-img {
            flex-shrink: 0;
            width: 180px;
            height: 120px;
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .info-row-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .info-row-content {
            flex: 1;
        }
        .info-row-content h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 6px 0;
            color: var(--text-dark);
        }
        .info-row-content p {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== 步骤/流程 ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }
        .step-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            transition: box-shadow var(--transition), transform var(--transition);
            position: relative;
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            margin: 0 auto 16px;
        }
        .step-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 8px 0;
            color: var(--text-dark);
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.65;
        }

        /* ========== 数据统计 ========== */
        .stats-banner {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            color: #fff;
        }
        .stat-item {
            text-align: center;
        }
        .stat-item .stat-num {
            font-size: 36px;
            font-weight: 700;
            letter-spacing: -1px;
            line-height: 1.2;
            color: #fff;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 4px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            margin-bottom: 0;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-question {
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            padding: 18px 4px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .fa-chevron-down {
            font-size: 13px;
            color: var(--text-light);
            transition: transform 200ms ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 240ms ease, padding 240ms ease;
            padding: 0 4px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 4px 18px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.75;
        }

        /* ========== CTA ========== */
        .cta-box {
            background: var(--primary-light);
            border: 1px solid rgba(47, 107, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -40px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(47, 107, 255, 0.08);
        }
        .cta-box h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px 0;
            position: relative;
            z-index: 1;
        }
        .cta-box p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 24px;
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }
        .cta-box .btn {
            position: relative;
            z-index: 1;
        }

        /* ========== 分页控件 ========== */
        .pagination-wrapper {
            display: flex;
            justify-content: center;
            margin-top: 36px;
        }
        .pagination {
            display: flex;
            gap: 6px;
            align-items: center;
        }
        .page-btn {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 500;
            background: var(--bg-white);
            border: 1px solid var(--border);
            color: var(--text-mid);
            transition: all var(--transition);
            cursor: pointer;
        }
        .page-btn:hover,
        .page-btn:focus {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
        }
        .page-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-foot);
            border-top: 1px solid var(--border);
            padding: var(--space-5) 0 0;
            margin-top: var(--space-5);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: var(--space-4);
        }
        .footer-brand-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin: 16px 0 0;
            max-width: 300px;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-links a:hover,
        .footer-links a:focus {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom-text {
            font-size: 13px;
            color: var(--text-light);
        }
        .footer-bottom-links {
            display: flex;
            gap: 16px;
            font-size: 13px;
        }
        .footer-bottom-links a {
            color: var(--text-light);
        }
        .footer-bottom-links a:hover,
        .footer-bottom-links a:focus {
            color: var(--primary);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-banner {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .category-hero h1 {
                font-size: 32px;
            }
            .section-title {
                font-size: 24px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: var(--space-4) 0;
            }
            .header-top {
                flex-wrap: nowrap;
                gap: 8px;
                padding: 10px 0;
            }
            .logo {
                font-size: 18px;
            }
            .logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
            .search-box {
                min-width: 0;
                width: 40px;
                padding: 0 10px;
            }
            .search-box input {
                display: none;
            }
            .search-icon {
                display: block;
                color: var(--text-mid);
            }
            .header-actions .btn-sm {
                padding: 7px 12px;
                font-size: 13px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 15px;
            }
            .category-hero {
                padding: var(--space-4) 0;
            }
            .category-hero h1 {
                font-size: 26px;
                line-height: 1.3;
            }
            .category-hero p {
                font-size: 15px;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stats-banner {
                grid-template-columns: repeat(2, 1fr);
                padding: 24px 16px;
                gap: 20px;
            }
            .stat-item .stat-num {
                font-size: 26px;
            }
            .info-row {
                flex-direction: column;
                text-align: center;
                padding: 20px;
            }
            .info-row-img {
                width: 100%;
                height: 180px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-box {
                padding: 32px 20px;
            }
            .cta-box h2 {
                font-size: 22px;
            }
            .section-title {
                font-size: 22px;
            }
            .nav-tabs {
                padding: 0 0 8px 0;
            }
            .nav-tab {
                padding: 6px 14px;
                font-size: 13px;
            }
        }
        @media (max-width: 520px) {
            .hero-badge-group {
                gap: 6px;
            }
            .hero-badge {
                font-size: 11px;
                padding: 4px 10px;
            }
            .card-body {
                padding: 16px 16px 18px;
            }
            .stats-banner {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stat-item .stat-num {
                font-size: 28px;
            }
            .pagination .page-btn {
                width: 34px;
                height: 34px;
                font-size: 12px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #2F6BFF;
            --primary-hover: #1E4FCC;
            --primary-light: #EAF0FF;
            --primary-soft: #F5F8FF;
            --accent: #FFB020;
            --accent-light: #FFF4DE;
            --bg: #F7F9FC;
            --bg-white: #FFFFFF;
            --bg-foot: #EEF2F8;
            --text-dark: #0F172A;
            --text-mid: #475569;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border: #E6EDF5;
            --border-strong: #CBD5E1;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.10);
            --space-1: 8px;
            --space-2: 16px;
            --space-3: 24px;
            --space-4: 40px;
            --space-5: 64px;
            --space-6: 80px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', sans-serif;
            --transition: 180ms ease;
            --max-width: 1200px;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-dark);
            line-height: 1.75;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover,
        a:focus {
            color: var(--primary-hover);
            text-decoration: none;
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

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

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

        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .section {
            padding: var(--space-5) 0;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px 0;
            letter-spacing: -0.5px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            margin: 0 0 32px 0;
            line-height: 1.75;
            max-width: 700px;
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-head.center {
            text-align: center;
        }

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

        .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        .eyebrow.accent {
            color: #8A6A00;
            background: var(--accent-light);
        }

        /* ========== Header 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: wrap;
        }

        .logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .logo:hover,
        .logo:focus {
            color: var(--text-dark);
        }

        .logo .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-white);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-md);
            padding: 0 14px;
            height: 42px;
            min-width: 220px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 107, 255, 0.12);
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            color: var(--text-dark);
            font-size: 14px;
            width: 100%;
            padding: 0 8px;
        }

        .search-box input::placeholder {
            color: var(--text-light);
        }

        .search-box .search-icon {
            color: var(--text-muted);
            font-size: 14px;
        }

        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 0 14px;
            overflow-x: auto;
            white-space: nowrap;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-tabs::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-mid);
            background: transparent;
            transition: background var(--transition), color var(--transition), box-shadow var(--transition);
            white-space: nowrap;
            border: 1px solid transparent;
        }

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

        .nav-tab.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(47, 107, 255, 0.25);
            border-color: var(--primary);
        }

        .nav-tab.active:hover {
            color: #fff;
            background: var(--primary-hover);
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 24px;
            text-decoration: none;
            transition: background var(--transition), color var(--transition), box-shadow var(--transition), border-color var(--transition), transform var(--transition);
            cursor: pointer;
            border: 1px solid transparent;
            line-height: 1.4;
        }

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

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
            box-shadow: 0 6px 16px rgba(47, 107, 255, 0.3);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(47, 107, 255, 0.25);
        }

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

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

        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            border-radius: 8px;
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
            border-radius: 12px;
        }

        .btn-block {
            width: 100%;
        }

        /* ========== 分类页 Hero ========== */
        .category-hero {
            position: relative;
            padding: var(--space-5) 0 var(--space-4);
            background: linear-gradient(135deg, #ffffff 0%, var(--primary-soft) 55%, var(--primary-light) 100%);
            overflow: hidden;
        }

        .category-hero .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .category-hero .hero-badge {
            margin-bottom: 16px;
        }

        .category-hero h1 {
            font-size: 38px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 16px 0;
            letter-spacing: -1px;
            line-height: 1.25;
        }

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

        .category-hero .hero-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 520px;
            margin: 0 0 24px 0;
        }

        .category-hero .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .hero-image-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            background: var(--bg-white);
            aspect-ratio: 4/3;
        }

        .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hero-image-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(15, 23, 42, 0.45) 100%);
            pointer-events: none;
        }

        .hero-image-tag {
            position: absolute;
            bottom: 16px;
            left: 16px;
            z-index: 2;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(4px);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 600;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-image-tag i {
            color: var(--primary);
        }

        /* ========== 卖点/优势板块 ========== */
        .advantages-strip {
            background: var(--bg-white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: var(--space-3) 0;
        }

        .advantages-strip .strip-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .strip-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px;
            border-radius: var(--radius-md);
            transition: background var(--transition);
        }

        .strip-item:hover {
            background: var(--primary-soft);
        }

        .strip-icon {
            width: 44px;
            height: 44px;
            background: var(--primary-light);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }

        .strip-item .strip-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 3px 0;
        }

        .strip-item .strip-text {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== 内容卡片网格 ========== */
        .content-grid-section {
            background: var(--bg);
        }

        .content-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        .content-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }

        .content-card .card-image {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--primary-soft);
        }

        .content-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

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

        .content-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 255, 255, 0.94);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            z-index: 2;
        }

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

        .content-card .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 8px 0;
            line-height: 1.45;
            transition: color var(--transition);
        }

        .content-card:hover .card-title {
            color: var(--primary);
        }

        .content-card .card-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 16px 0;
            flex-grow: 1;
        }

        .content-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-light);
        }

        .content-card .card-date {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .content-card .card-link-arrow {
            color: var(--primary);
            font-size: 14px;
            transition: transform var(--transition);
        }

        .content-card:hover .card-link-arrow {
            transform: translateX(4px);
        }

        /* ========== 分页 ========== */
        .pagination-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .page-btn {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--bg-white);
            border: 1px solid var(--border);
            color: var(--text-mid);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition);
            text-decoration: none;
        }

        .page-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
        }

        .page-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        .page-btn.prev-next {
            width: auto;
            padding: 0 16px;
            gap: 4px;
        }

        /* ========== 适用场景 ========== */
        .scenario-section {
            background: var(--bg-white);
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: 0.85fr 1.15fr;
            gap: 48px;
            align-items: center;
        }

        .scenario-image-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4/3;
            background: var(--primary-soft);
        }

        .scenario-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .scenario-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .scenario-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 16px;
            border-radius: var(--radius-md);
            background: var(--bg);
            border: 1px solid var(--border);
            transition: all var(--transition);
            font-size: 15px;
            color: var(--text-mid);
            line-height: 1.7;
        }

        .scenario-list li:hover {
            background: var(--primary-soft);
            border-color: var(--primary-light);
            color: var(--text-dark);
        }

        .scenario-list li .scenario-num {
            width: 28px;
            height: 28px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
        }

        /* ========== 流程步骤 ========== */
        .process-section {
            background: var(--bg);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }

        .process-step {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            position: relative;
            transition: all var(--transition);
        }

        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--primary-light);
        }

        .process-step .step-num {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary-light);
            line-height: 1;
            margin-bottom: 12px;
        }

        .process-step h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 8px 0;
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-white);
        }

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

        .faq-item {
            border-bottom: 1px solid var(--border);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 20px 4px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            transition: color var(--transition);
            user-select: none;
            -webkit-user-select: none;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 13px;
            flex-shrink: 0;
            transition: transform var(--transition), background var(--transition);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 300ms ease, padding 300ms ease;
            padding: 0 4px;
        }

        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 4px 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--bg);
        }

        .cta-card {
            background: var(--primary-light);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 180px;
            height: 180px;
            background: rgba(47, 107, 255, 0.06);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-card::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            background: rgba(255, 176, 32, 0.08);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-card h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px 0;
            position: relative;
            z-index: 1;
        }

        .cta-card h2 .highlight {
            color: var(--primary);
        }

        .cta-card p {
            font-size: 16px;
            color: var(--text-muted);
            margin: 0 0 28px 0;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            position: relative;
            z-index: 1;
            line-height: 1.8;
        }

        .cta-card .cta-actions {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-foot);
            border-top: 1px solid var(--border);
            padding: var(--space-5) 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border);
        }

        .footer-brand .logo {
            margin-bottom: 16px;
            font-size: 20px;
        }

        .footer-brand-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
            max-width: 300px;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 16px 0;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--text-mid);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 20px 0;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

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

        .footer-bottom-links a:hover {
            color: var(--primary);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .content-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .category-hero .hero-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-5: 48px;
                --space-4: 32px;
            }

            .container {
                padding: 0 16px;
            }

            .header-top {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 8px;
            }

            .search-box {
                min-width: 0;
                width: 100%;
                order: 3;
                flex-basis: 100%;
            }

            .header-actions {
                gap: 8px;
            }

            .logo {
                font-size: 18px;
            }

            .logo .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }

            .category-hero h1 {
                font-size: 28px;
                letter-spacing: -1px;
            }

            .category-hero .hero-desc {
                font-size: 15px;
            }

            .section-title {
                font-size: 22px;
            }

            .content-card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .advantages-strip .strip-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .strip-item {
                padding: 12px;
            }

            .process-steps {
                grid-template-columns: 1fr;
            }

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

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

            .cta-card {
                padding: 32px 20px;
            }

            .cta-card h2 {
                font-size: 22px;
            }

            .btn-lg {
                padding: 12px 24px;
                font-size: 15px;
            }

            .hero-image-wrap {
                aspect-ratio: 16/10;
            }
        }

        @media (max-width: 520px) {
            .nav-tabs {
                gap: 4px;
                padding: 8px 0 12px;
            }

            .nav-tab {
                padding: 6px 14px;
                font-size: 13px;
            }

            .header-top {
                padding: 10px 0;
            }

            .category-hero {
                padding: var(--space-4) 0 var(--space-3);
            }

            .category-hero h1 {
                font-size: 24px;
            }

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

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

            .pagination-wrap {
                gap: 4px;
            }

            .page-btn {
                width: 36px;
                height: 36px;
                font-size: 13px;
            }

            .page-btn.prev-next {
                padding: 0 12px;
            }

            .faq-question {
                font-size: 15px;
                padding: 16px 4px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #2F6BFF;
            --primary-hover: #1E4FCC;
            --primary-light: #EAF0FF;
            --primary-soft: #F5F8FF;
            --accent: #FFB020;
            --accent-light: #FFF4DE;
            --bg: #F7F9FC;
            --bg-white: #FFFFFF;
            --bg-foot: #EEF2F8;
            --text-dark: #0F172A;
            --text-mid: #475569;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border: #E6EDF5;
            --border-strong: #CBD5E1;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.10);
            --space-1: 8px;
            --space-2: 16px;
            --space-3: 24px;
            --space-4: 40px;
            --space-5: 64px;
            --space-6: 80px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', sans-serif;
            --transition: 180ms ease;
            --max-width: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text-dark);
            line-height: 1.75;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary-hover);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--space-5) 0;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 12px 0;
            letter-spacing: -0.5px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            margin: 0 0 32px 0;
            line-height: 1.75;
            max-width: 700px;
        }
        .section-head {
            margin-bottom: 40px;
        }
        .section-head.center {
            text-align: center;
        }
        .section-head.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }
        .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .eyebrow.accent {
            color: #8A6A00;
            background: var(--accent-light);
        }
        /* ========== Header 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: wrap;
        }
        .logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .logo:hover,
        .logo:focus {
            color: var(--text-dark);
        }
        .logo .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-white);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-md);
            padding: 0 14px;
            height: 42px;
            min-width: 220px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(47, 107, 255, 0.12);
        }
        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            color: var(--text-dark);
            width: 100%;
            font-size: 14px;
        }
        .search-box input::placeholder {
            color: var(--text-light);
        }
        .search-icon {
            color: var(--text-light);
            margin-right: 8px;
            font-size: 14px;
        }
        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-strong) transparent;
        }
        .nav-tabs::-webkit-scrollbar {
            height: 4px;
        }
        .nav-tabs::-webkit-scrollbar-track {
            background: transparent;
        }
        .nav-tabs::-webkit-scrollbar-thumb {
            background: var(--border-strong);
            border-radius: 10px;
        }
        .nav-tab {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-mid);
            background: transparent;
            border: 1px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-tab:hover {
            color: var(--primary);
            background: var(--primary-soft);
            border-color: var(--primary-light);
        }
        .nav-tab.active {
            color: #fff;
            background: var(--primary);
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(47, 107, 255, 0.18);
        }
        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            padding: 12px 24px;
            border-radius: 10px;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all var(--transition);
            text-align: center;
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border-color: var(--border-strong);
        }
        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            border-radius: 8px;
        }
        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
            border-radius: 12px;
        }
        .btn-block {
            width: 100%;
        }
        /* ========== 卡片 ========== */
        .card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }
        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 240ms ease;
        }
        .card:hover .card-image img {
            transform: scale(1.04);
        }
        .card-body {
            padding: 20px 22px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }
        .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0;
            line-height: 1.4;
            letter-spacing: -0.3px;
        }
        .card-title a {
            color: var(--text-dark);
            transition: color var(--transition);
        }
        .card-title a:hover,
        .card-title a:focus {
            color: var(--primary);
        }
        .card-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 2px;
            font-size: 12px;
            color: var(--text-light);
            flex-wrap: wrap;
        }
        .card-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
            letter-spacing: 0.3px;
        }
        .card-tag.accent {
            background: var(--accent-light);
            color: #8A6A00;
        }
        .card-action {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition);
        }
        .card-action:hover,
        .card-action:focus {
            color: var(--primary-hover);
            gap: 10px;
        }
        .card-action i {
            font-size: 13px;
        }
        /* ========== 标签 ========== */
        .pill-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
            letter-spacing: 0.3px;
        }
        .pill-tag.accent {
            background: var(--accent-light);
            color: #8A6A00;
        }
        .pill-tag.outline {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--text-mid);
        }
        /* ========== 列表 ========== */
        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--text-mid);
            line-height: 1.7;
        }
        .feature-list li i {
            color: var(--primary);
            margin-top: 4px;
            flex-shrink: 0;
        }
        /* ========== Hero 创作者风格 ========== */
        .promo-hero {
            background: linear-gradient(180deg, #F8FAFF 0%, #F2F6FF 100%);
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .promo-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -120px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(47, 107, 255, 0.06) 0%, rgba(47, 107, 255, 0) 70%);
            pointer-events: none;
        }
        .promo-hero::after {
            content: '';
            position: absolute;
            bottom: -160px;
            left: -160px;
            width: 520px;
            height: 520px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 176, 32, 0.05) 0%, rgba(255, 176, 32, 0) 70%);
            pointer-events: none;
        }
        .promo-hero-grid {
            display: flex;
            align-items: center;
            gap: 48px;
            padding: 64px 0;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }
        .promo-hero-brand {
            flex-shrink: 0;
        }
        .promo-hero-avatar {
            width: 128px;
            height: 128px;
            border-radius: 28px;
            background: #fff;
            border: 2px solid var(--border);
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            position: relative;
        }
        .promo-hero-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .promo-hero-avatar .avatar-fallback {
            font-size: 48px;
            font-weight: 700;
            color: var(--primary);
        }
        .promo-hero-info {
            flex: 1;
            min-width: 260px;
        }
        .promo-hero-name {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 6px 0;
            letter-spacing: -0.8px;
            line-height: 1.25;
        }
        .promo-hero-desc {
            font-size: 16px;
            color: var(--text-muted);
            margin: 0 0 20px 0;
            line-height: 1.75;
            max-width: 600px;
        }
        .promo-hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .promo-badge {
            display: flex;
            flex-direction: column;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 12px 18px;
            min-width: 120px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .promo-badge:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .promo-badge-value {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            letter-spacing: -0.5px;
        }
        .promo-badge-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 2px;
        }
        .promo-hero-cta {
            display: flex;
            gap: 12px;
            margin-top: 22px;
            flex-wrap: wrap;
        }
        /* ========== 特色活动卡片 ========== */
        .promo-feature-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .promo-feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .promo-feature-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }
        .promo-feature-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 240ms ease;
        }
        .promo-feature-card:hover .promo-feature-image img {
            transform: scale(1.05);
        }
        .promo-feature-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #fff;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .promo-feature-body {
            padding: 20px 22px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }
        /* ========== 步骤流程 ========== */
        .step-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px 22px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
            position: relative;
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-pill);
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
            margin-bottom: 12px;
        }
        .step-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px 0;
            line-height: 1.4;
        }
        .step-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }
        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            text-align: left;
            padding: 18px 22px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: all var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 14px;
            color: var(--text-light);
            transition: transform var(--transition);
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 240ms ease, padding 240ms ease;
            padding: 0 22px;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 22px 18px 22px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin: 0;
        }
        /* ========== 数据区块 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
        }
        .stat-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-value {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -1px;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }
        /* ========== CTA 区块 ========== */
        .cta-block {
            background: var(--primary-light);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(47, 107, 255, 0.08);
            pointer-events: none;
        }
        .cta-block-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            justify-content: space-between;
        }
        .cta-block-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px 0;
            letter-spacing: -0.5px;
            line-height: 1.3;
        }
        .cta-block-desc {
            font-size: 15px;
            color: var(--text-mid);
            margin: 0;
            max-width: 560px;
            line-height: 1.7;
        }
        .cta-block-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-foot);
            border-top: 1px solid var(--border);
            padding: 48px 0 24px 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-brand .logo {
            margin-bottom: 12px;
            display: inline-flex;
        }
        .footer-brand-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
            max-width: 320px;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 14px 0;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links li {
            margin: 0;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-links a:hover,
        .footer-links a:focus {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
        }
        .footer-bottom-text {
            font-size: 12px;
            color: var(--text-light);
            line-height: 1.8;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
        }
        .footer-bottom-links {
            display: flex;
            gap: 16px;
            font-size: 12px;
        }
        .footer-bottom-links a {
            color: var(--text-light);
            transition: color var(--transition);
        }
        .footer-bottom-links a:hover,
        .footer-bottom-links a:focus {
            color: var(--primary);
        }
        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .promo-hero-grid {
                gap: 32px;
                padding: 48px 0;
            }
            .promo-hero-name {
                font-size: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-wrap: nowrap;
                gap: 8px;
            }
            .search-box {
                min-width: auto;
                width: 40px;
                padding: 0 10px;
                justify-content: center;
            }
            .search-box input {
                display: none;
            }
            .search-box .search-icon {
                margin-right: 0;
            }
            .btn-sm {
                padding: 8px 12px;
                font-size: 13px;
            }
            .nav-tabs {
                gap: 6px;
                padding: 8px 0;
            }
            .nav-tab {
                padding: 7px 14px;
                font-size: 13px;
            }
            .promo-hero-grid {
                flex-direction: column;
                align-items: flex-start;
                gap: 24px;
                padding: 40px 0;
            }
            .promo-hero-avatar {
                width: 96px;
                height: 96px;
                border-radius: 20px;
            }
            .promo-hero-name {
                font-size: 26px;
            }
            .promo-hero-desc {
                font-size: 15px;
            }
            .promo-hero-badges {
                gap: 8px;
            }
            .promo-badge {
                padding: 10px 14px;
                min-width: 90px;
            }
            .promo-badge-value {
                font-size: 18px;
            }
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .cta-block {
                padding: 32px 24px;
            }
            .cta-block-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }
            .cta-block-title {
                font-size: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-bottom-text {
                flex-direction: column;
                align-items: flex-start;
                gap: 2px;
            }
            .footer-bottom-text span {
                margin-left: 0 !important;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stat-value {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .logo {
                font-size: 18px;
            }
            .logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 15px;
                border-radius: 6px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .btn-sm {
                padding: 7px 10px;
                font-size: 12px;
            }
            .header-top {
                padding: 10px 0;
            }
            .nav-tab {
                padding: 6px 11px;
                font-size: 12px;
            }
            .promo-hero-name {
                font-size: 22px;
            }
            .promo-hero-desc {
                font-size: 14px;
            }
            .promo-badge {
                padding: 8px 10px;
                min-width: 70px;
            }
            .promo-badge-value {
                font-size: 16px;
            }
            .promo-badge-label {
                font-size: 11px;
            }
            .card-body {
                padding: 16px 16px;
            }
            .card-title {
                font-size: 16px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.active .faq-answer {
                padding: 0 16px 14px 16px;
            }
            .step-card {
                padding: 18px 16px;
            }
            .step-title {
                font-size: 15px;
            }
            .cta-block {
                padding: 24px 18px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-value {
                font-size: 20px;
            }
            .stat-card {
                padding: 16px 12px;
            }
        }