/* roulang page: index */
:root {
            --primary: #2E6FDB;
            --primary-light: #EAF2FD;
            --bg: #F7FAFC;
            --surface: #FFFFFF;
            --text-strong: #132238;
            --text-muted: #5B6B85;
            --text-faint: #8A99B3;
            --border: #E3EAF2;
            --accent: #FF8A3D;
            --data-bg: #1D4FA3;
            --footer-bg: #0F1C33;
            --radius-lg: 14px;
            --radius-pill: 999px;
            --shadow-default: 0 4px 20px rgba(19, 34, 56, 0.06);
            --shadow-hover: 0 8px 32px rgba(19, 34, 56, 0.10);
            --transition: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg);
            color: var(--text-strong);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container-page {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 悬浮胶囊导航 ===== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 100;
            padding-left: 16px;
            padding-right: 16px;
        }

        .nav-capsule {
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-radius: 999px;
            border: 1px solid var(--border);
            box-shadow: 0 4px 24px rgba(19, 34, 56, 0.08);
            padding: 10px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

        .site-header.scrolled .nav-capsule {
            background: rgba(255, 255, 255, 0.92);
            box-shadow: 0 6px 28px rgba(19, 34, 56, 0.12);
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            letter-spacing: 1px;
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.2;
            white-space: nowrap;
        }

        .nav-links {
            display: none;
            align-items: center;
            gap: 4px;
        }

        .nav-link {
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            transition: all var(--transition);
            white-space: nowrap;
        }

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

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

        .nav-cta {
            display: none;
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            padding: 9px 22px;
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }

        .nav-cta:hover {
            background: var(--accent);
            transform: translateY(-2px);
        }

        .nav-cta:active {
            transform: translateY(0);
        }

        .menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-light);
            border: none;
            cursor: pointer;
            color: var(--primary);
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--border);
            box-shadow: 0 12px 40px rgba(19, 34, 56, 0.12);
            padding: 16px;
            margin-top: 12px;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            border-radius: 12px;
            font-size: 16px;
            color: var(--text-strong);
            font-weight: 500;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: var(--primary-light);
            color: var(--primary);
        }

        .mobile-menu .nav-cta-mobile {
            display: block;
            text-align: center;
            background: var(--primary);
            color: #fff;
            padding: 12px;
            border-radius: 999px;
            margin-top: 8px;
            font-weight: 500;
        }

        @media (min-width: 768px) {
            .nav-links {
                display: flex;
            }

            .nav-cta {
                display: inline-block;
            }

            .menu-toggle {
                display: none;
            }

            .mobile-menu {
                display: none !important;
            }
        }

        /* ===== Hero ===== */
        .hero-section {
            background: linear-gradient(135deg, #EAF2FD 0%, #F7FAFC 60%);
            padding: 140px 24px 80px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            color: var(--primary);
            font-weight: 500;
            margin-bottom: 20px;
        }

        .hero-title {
            font-size: 36px;
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-strong);
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }

        .hero-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 540px;
        }

        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            padding: 13px 30px;
            font-size: 15px;
            font-weight: 500;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            min-height: 44px;
        }

        .btn-primary:hover {
            background: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 138, 61, 0.3);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(46, 111, 219, 0.3);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            color: var(--primary);
            border-radius: 999px;
            padding: 13px 30px;
            font-size: 15px;
            font-weight: 500;
            border: 1.5px solid var(--primary);
            cursor: pointer;
            transition: all var(--transition);
            min-height: 44px;
        }

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

        .btn-secondary:active {
            transform: scale(0.97);
        }

        .hero-visual {
            position: relative;
        }

        .hero-card {
            background: #fff;
            border-radius: 14px;
            box-shadow: var(--shadow-hover);
            padding: 12px;
            border: 1px solid var(--border);
        }

        .hero-card img {
            border-radius: 10px;
            width: 100%;
            height: 300px;
            object-fit: cover;
        }

        .hero-stat-badge {
            position: absolute;
            top: -16px;
            right: -10px;
            background: #fff;
            border-radius: 12px;
            box-shadow: var(--shadow-hover);
            padding: 12px 20px;
            border: 1px solid var(--border);
            text-align: center;
        }

        .hero-stat-badge .num {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .hero-stat-badge .label {
            font-size: 12px;
            color: var(--text-faint);
        }

        @media (min-width: 1024px) {
            .hero-section {
                padding-top: 160px;
                padding-bottom: 100px;
            }

            .hero-inner {
                grid-template-columns: 1fr 1fr;
            }

            .hero-title {
                font-size: 44px;
            }
        }

        /* ===== 通用板块样式 ===== */
        .section {
            padding: 72px 0;
        }

        .section-white {
            background: #fff;
        }

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

        .section-head {
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.3;
            margin-bottom: 8px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 560px;
            line-height: 1.7;
        }

        /* ===== 服务卡片 ===== */
        .services-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
        }

        .service-card {
            background: #fff;
            border-radius: 14px;
            border: 1px solid var(--border);
            padding: 32px 28px;
            transition: all var(--transition);
        }

        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(46, 111, 219, 0.3);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 48px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 8px;
        }

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

        .service-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
        }

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

        @media (min-width: 768px) {
            .services-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        /* ===== 数据条带 ===== */
        .stats-section {
            background: var(--data-bg);
            padding: 60px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .stat-item {
            text-align: center;
            padding: 16px;
        }

        .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            line-height: 1.1;
            letter-spacing: -0.02em;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 8px;
        }

        .stat-item::after {
            content: '';
            display: block;
            width: 28px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 12px auto 0;
        }

        @media (min-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(4, 1fr);
            }

            .stat-number {
                font-size: 44px;
            }
        }

        /* ===== 案例卡片 ===== */
        .cases-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
        }

        .case-card {
            background: #fff;
            border-radius: 14px;
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
            cursor: pointer;
        }

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

        .case-img {
            position: relative;
            overflow: hidden;
            height: 200px;
        }

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

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

        .case-img::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(19, 34, 56, 0.2));
        }

        .case-body {
            padding: 20px 24px 24px;
        }

        .case-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            padding: 2px 12px;
            border-radius: 999px;
            margin-bottom: 10px;
        }

        .case-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .case-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        @media (min-width: 768px) {
            .cases-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        /* ===== 流程步骤 ===== */
        .process-steps {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }

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

        .step-circle {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            border: 2px solid var(--primary);
            color: var(--primary);
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            background: #fff;
            transition: all var(--transition);
        }

        .step-item:hover .step-circle {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(46, 111, 219, 0.25);
        }

        .step-item h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 220px;
            margin: 0 auto;
        }

        @media (min-width: 768px) {
            .process-steps {
                grid-template-columns: repeat(4, 1fr);
                gap: 16px;
            }
        }

        .cta-card {
            background: var(--primary);
            border-radius: 16px;
            padding: 36px 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            color: #fff;
        }

        .cta-card h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .cta-card p {
            font-size: 14px;
            opacity: 0.8;
        }

        .cta-card .btn-secondary {
            background: transparent;
            border-color: #fff;
            color: #fff;
        }

        .cta-card .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.15);
        }

        /* ===== 资讯列表 ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .news-card {
            display: flex;
            align-items: center;
            gap: 20px;
            background: #fff;
            border-radius: 14px;
            border: 1px solid var(--border);
            padding: 16px;
            transition: all var(--transition);
        }

        .news-card:hover {
            background: #F1F6FE;
            border-color: rgba(46, 111, 219, 0.3);
            box-shadow: var(--shadow-default);
        }

        .news-thumb {
            width: 80px;
            height: 80px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .news-content {
            flex: 1;
            min-width: 0;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 4px;
        }

        .news-cat {
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            padding: 2px 10px;
            border-radius: 999px;
            white-space: nowrap;
        }

        .news-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 4px;
        }

        .news-date {
            font-size: 13px;
            color: var(--text-faint);
        }

        .news-empty {
            background: #fff;
            border-radius: 14px;
            border: 1px dashed var(--border);
            padding: 48px 24px;
            text-align: center;
            color: var(--text-faint);
            font-size: 15px;
        }

        @media (max-width: 640px) {
            .news-card {
                flex-direction: column;
                align-items: flex-start;
            }

            .news-thumb {
                width: 100%;
                height: 160px;
            }

            .news-title {
                white-space: normal;
            }
        }

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

        .faq-item {
            background: #fff;
            border-radius: 14px;
            border: 1px solid var(--border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow var(--transition);
        }

        .faq-item.active {
            box-shadow: var(--shadow-default);
            border-color: rgba(46, 111, 219, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            user-select: none;
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 500;
            flex-shrink: 0;
            transition: all var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 0 24px 20px;
        }

        /* ===== 联系区 ===== */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
        }

        .contact-info-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }

        .contact-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .contact-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 2px;
        }

        .contact-item p {
            font-size: 14px;
            color: var(--text-muted);
        }

        .contact-form-card {
            background: #fff;
            border-radius: 14px;
            border: 1px solid var(--border);
            padding: 32px;
            box-shadow: var(--shadow-default);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .form-input {
            width: 100%;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 12px 16px;
            font-size: 15px;
            color: var(--text-strong);
            transition: all var(--transition);
        }

        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 111, 219, 0.15);
            background: #fff;
        }

        .form-input::placeholder {
            color: var(--text-faint);
        }

        .form-submit {
            width: 100%;
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            padding: 14px 24px;
            font-size: 15px;
            font-weight: 500;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            min-height: 44px;
        }

        .form-submit:hover {
            background: var(--accent);
            transform: translateY(-2px);
        }

        .form-note {
            font-size: 13px;
            color: var(--text-faint);
            text-align: center;
            margin-top: 12px;
        }

        @media (min-width: 768px) {
            .contact-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--footer-bg);
            color: #A6B4CE;
            padding: 60px 24px 24px;
        }

        .footer-grid {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
        }

        .footer-brand .brand-text {
            color: #fff;
            font-size: 20px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            margin-top: 12px;
            max-width: 280px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: #A6B4CE;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            max-width: 1200px;
            margin: 40px auto 0;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            flex-direction: column;
            gap: 8px;
            align-items: center;
            font-size: 13px;
            color: rgba(166, 180, 206, 0.6);
        }

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.4fr 0.8fr 1fr 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: row;
                justify-content: space-between;
            }
        }

        /* ===== 装饰灯笼弧 ===== */
        .hero-decor {
            position: absolute;
            bottom: -40px;
            right: -20px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            border: 40px solid rgba(46, 111, 219, 0.06);
            pointer-events: none;
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }

            .hero-section {
                padding-top: 120px;
                padding-bottom: 60px;
            }

            .hero-decor {
                display: none;
            }

            .hero-title {
                font-size: 30px;
            }

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

/* roulang page: category1 */
:root {
            --primary: #2E6FDB;
            --primary-light: #EAF2FD;
            --bg: #F7FAFC;
            --surface: #FFFFFF;
            --text-strong: #132238;
            --text-muted: #5B6B85;
            --text-faint: #8A99B3;
            --border: #E3EAF2;
            --accent: #FF8A3D;
            --data-bg: #1D4FA3;
            --footer-bg: #0F1C33;
            --radius: 14px;
            --radius-pill: 999px;
            --shadow: 0 4px 20px rgba(19, 34, 56, 0.06);
            --shadow-hover: 0 8px 32px rgba(19, 34, 56, 0.10);
            --transition: 0.25s ease;
            --container: 1200px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text-strong);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 悬浮胶囊导航 ===== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 100;
            display: flex;
            justify-content: center;
            padding: 0 24px;
            pointer-events: none;
        }
        .nav-container {
            pointer-events: auto;
            width: 100%;
            max-width: var(--container);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 8px 10px 8px 20px;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(16px);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            box-shadow: 0 4px 24px rgba(19, 34, 56, 0.08);
            transition: box-shadow var(--transition), background var(--transition);
        }
        .site-header.scrolled .nav-container {
            background: rgba(255, 255, 255, 0.92);
            box-shadow: 0 8px 32px rgba(19, 34, 56, 0.12);
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            border-radius: 12px;
            letter-spacing: 0;
            flex-shrink: 0;
        }
        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            display: inline-block;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            transition: all var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition);
        }
        .nav-cta:hover {
            background: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 138, 61, 0.3);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            align-items: center;
            cursor: pointer;
            border-radius: 50%;
            border: 1px solid var(--border);
            background: #fff;
            transition: background var(--transition);
        }
        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-strong);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .nav-toggle:hover {
            background: var(--primary-light);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 88px;
            left: 16px;
            right: 16px;
            background: #fff;
            border-radius: 20px;
            border: 1px solid var(--border);
            box-shadow: 0 20px 48px rgba(19, 34, 56, 0.14);
            padding: 16px;
            z-index: 99;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-menu.show {
            display: flex;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 18px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-muted);
            transition: all var(--transition);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--primary);
            background: var(--primary-light);
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            cursor: pointer;
            transition: all var(--transition);
            border: 1.5px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 138, 61, 0.3);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-secondary {
            background: #fff;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-light);
        }

        /* ===== 内页标题带 ===== */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, #EAF2FD 0%, #F7FAFC 100%);
            padding: 150px 0 80px;
            overflow: hidden;
        }
        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.16;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-faint);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: var(--primary);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb-sep {
            color: var(--border);
            font-weight: 300;
        }
        .breadcrumb-current {
            color: var(--text-faint);
        }
        .page-hero h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .page-hero p {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.8;
        }

        /* ===== 资讯标签 ===== */
        .topic-tabs-section {
            padding: 48px 0 0;
        }
        .topic-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: center;
        }
        .topic-tab {
            display: inline-block;
            padding: 9px 24px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            background: #fff;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .topic-tab:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .topic-tab.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        /* ===== 焦点内容区：1大卡+2小卡 ===== */
        .featured-section {
            padding: 56px 0 16px;
        }
        .featured-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 28px;
        }
        .featured-card-large {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all var(--transition);
            box-shadow: var(--shadow);
        }
        .featured-card-large:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .featured-large-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }
        .featured-large-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .featured-card-large:hover .featured-large-media img {
            transform: scale(1.05);
        }
        .card-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            display: inline-block;
            padding: 6px 16px;
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            box-shadow: 0 4px 12px rgba(46, 111, 219, 0.25);
        }
        .featured-large-body {
            padding: 28px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .card-date {
            font-size: 13px;
            color: var(--text-faint);
            margin-bottom: 8px;
        }
        .featured-large-body h3 {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-strong);
            margin-bottom: 12px;
        }
        .featured-large-desc {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-link {
            display: inline-block;
            margin-top: 18px;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            transition: color var(--transition);
        }
        .featured-card-large:hover .card-link {
            color: var(--accent);
        }
        .featured-stack {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .featured-card-small {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            display: flex;
            gap: 0;
            transition: all var(--transition);
            box-shadow: var(--shadow);
            flex: 1;
        }
        .featured-card-small:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .featured-small-media {
            width: 38%;
            overflow: hidden;
            flex-shrink: 0;
        }
        .featured-small-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .featured-card-small:hover .featured-small-media img {
            transform: scale(1.06);
        }
        .featured-small-body {
            padding: 20px 18px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-small-body h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--text-strong);
            margin: 6px 0 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .featured-small-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .small-tag {
            display: inline-block;
            padding: 4px 12px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            align-self: flex-start;
        }

        /* ===== 精选资讯 2列 ===== */
        .news-grid-section {
            padding: 72px 0 40px;
        }
        .section-head {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-tag {
            display: inline-block;
            padding: 6px 18px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.3;
        }
        .news-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .content-card {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            display: block;
            transition: all var(--transition);
            box-shadow: var(--shadow);
            height: 100%;
        }
        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .content-card-media {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
        }
        .content-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .content-card:hover .content-card-media img {
            transform: scale(1.05);
        }
        .content-card-body {
            padding: 22px 24px 24px;
        }
        .content-card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
        }
        .content-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--text-strong);
            margin-bottom: 8px;
            transition: color var(--transition);
        }
        .content-card:hover .content-card-body h3 {
            color: var(--primary);
        }
        .content-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===== 数据条带 ===== */
        .stats-band {
            background: var(--data-bg);
            padding: 60px 0;
            margin: 24px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            text-align: center;
        }
        .stats-item .stat-num {
            font-size: 42px;
            font-weight: 700;
            color: #fff;
            line-height: 1.1;
            letter-spacing: 1px;
        }
        .stats-item .stat-line {
            display: block;
            width: 36px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            margin: 14px auto;
        }
        .stats-item .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
        }

        /* ===== 资讯价值特征 ===== */
        .value-section {
            padding: 72px 0 30px;
        }
        .value-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .value-card {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 36px 28px;
            text-align: center;
            transition: all var(--transition);
        }
        .value-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary);
        }
        .value-icon {
            width: 56px;
            height: 56px;
            border-radius: 18px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: var(--primary);
        }
        .value-icon svg {
            width: 26px;
            height: 26px;
            stroke-width: 1.8;
        }
        .value-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 10px;
        }
        .value-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 64px 0 40px;
        }
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            margin-bottom: 16px;
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item.active {
            box-shadow: var(--shadow);
            border-color: var(--primary);
        }
        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 26px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            user-select: none;
            transition: color var(--transition);
        }
        .faq-q:hover {
            color: var(--primary);
        }
        .faq-q .faq-arrow {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            border: 1.5px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 400;
            color: var(--text-muted);
            transition: all 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.active .faq-q .faq-arrow {
            border-color: var(--primary);
            color: var(--primary);
            transform: rotate(45deg);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 26px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .faq-item.active .faq-a {
            max-height: 300px;
            padding-bottom: 24px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 40px 0 80px;
        }
        .cta-box {
            background: linear-gradient(135deg, var(--primary-light) 0%, #F7FAFC 100%);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 48px 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .cta-box h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .cta-box p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--footer-bg);
            color: #A6B4CE;
            padding: 64px 0 0;
            font-size: 14px;
        }
        .footer-grid {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1.3fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }
        .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
            font-size: 16px;
            border-radius: 10px;
        }
        .footer-brand .brand-text {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
        }
        .footer-brand p {
            line-height: 1.8;
            margin-top: 12px;
            max-width: 280px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .footer-col ul li {
            margin-bottom: 12px;
            line-height: 1.7;
        }
        .footer-col ul li a {
            color: #A6B4CE;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            max-width: var(--container);
            margin: 0 auto;
            padding: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .featured-grid {
                grid-template-columns: 1fr 1fr;
            }
            .featured-card-large {
                grid-column: 1 / -1;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            body {
                font-size: 15px;
            }
            .container {
                padding: 0 16px;
            }
            .site-header {
                padding: 0 16px;
                top: 12px;
            }
            .nav-container {
                border-radius: 20px;
                padding: 8px 8px 8px 16px;
            }
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .page-hero {
                padding: 130px 0 56px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .featured-card-small {
                flex-direction: row;
            }
            .featured-small-media {
                width: 40%;
            }
            .news-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 20px;
            }
            .value-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-box {
                padding: 32px 24px;
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .nav-toggle {
                width: 40px;
                height: 40px;
            }
        }
        @media (max-width: 520px) {
            .brand-text {
                font-size: 16px;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
                border-radius: 10px;
            }
            .featured-small-body h3 {
                font-size: 15px;
            }
            .featured-small-body p {
                font-size: 13px;
            }
            .featured-large-body h3 {
                font-size: 19px;
            }
            .featured-large-desc {
                font-size: 14px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .stats-item .stat-num {
                font-size: 32px;
            }
            .faq-q {
                font-size: 15px;
                padding: 18px 20px;
            }
            .faq-a {
                padding: 0 20px;
            }
        }
        @media (min-width: 769px) {
            .mobile-menu {
                display: none !important;
            }
        }

/* roulang page: article */
:root {
            --primary: #2E6FDB;
            --primary-light: #EAF2FD;
            --bg: #F7FAFC;
            --surface: #FFFFFF;
            --text-strong: #132238;
            --text-muted: #5B6B85;
            --text-faint: #8A99B3;
            --border: #E3EAF2;
            --accent: #FF8A3D;
            --data-bg: #1D4FA3;
            --footer-bg: #0F1C33;
            --radius: 14px;
            --radius-pill: 999px;
            --shadow: 0 4px 20px rgba(19,34,56,0.06);
            --shadow-hover: 0 8px 32px rgba(19,34,56,0.10);
            --transition: 0.25s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text-strong);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 悬浮胶囊导航 ===== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 100;
            display: flex;
            justify-content: center;
            padding: 0 16px;
        }
        .header-inner {
            width: 100%;
            max-width: 1200px;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: var(--radius-pill);
            border: 1px solid var(--border);
            box-shadow: 0 4px 24px rgba(19, 34, 56, 0.08);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 24px;
            gap: 16px;
            transition: box-shadow 0.3s ease, background 0.3s ease;
        }
        .header-inner.scrolled {
            background: rgba(255, 255, 255, 0.92);
            box-shadow: 0 8px 32px rgba(19, 34, 56, 0.12);
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
        }
        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            display: inline-block;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            line-height: 1.4;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(46, 111, 219, 0.06);
        }
        .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-cta {
            display: inline-block;
            padding: 9px 22px;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            flex-shrink: 0;
            transition: all 0.25s ease;
            box-shadow: 0 4px 16px rgba(46, 111, 219, 0.24);
        }
        .nav-cta:hover {
            background: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 6px 22px rgba(255, 138, 61, 0.30);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            border: 1px solid var(--border);
            background: #fff;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .nav-toggle svg {
            width: 20px;
            height: 20px;
            stroke: var(--text-strong);
        }

        /* ===== 内页标题带 ===== */
        .page-banner {
            background: linear-gradient(135deg, #EAF2FD 0%, #F7FAFC 60%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 148px 0 56px;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--text-faint);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--text-faint);
            pointer-events: none;
        }
        .page-banner h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.35;
            max-width: 880px;
            margin-bottom: 18px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .meta-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--text-faint);
            display: inline-block;
        }

        /* ===== 文章正文区 ===== */
        .article-section {
            padding: 56px 0 80px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .article-main {
            min-width: 0;
        }
        .article-body {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 44px 48px;
            box-shadow: var(--shadow);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-strong);
            word-wrap: break-word;
        }
        .article-body p {
            margin-bottom: 24px;
        }
        .article-body h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-strong);
            margin: 40px 0 16px;
            line-height: 1.4;
        }
        .article-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-strong);
            margin: 32px 0 12px;
            line-height: 1.4;
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            border-radius: 8px;
            padding: 16px 20px;
            margin: 24px 0;
            color: var(--text-muted);
            font-style: normal;
        }
        .article-body ul,
        .article-body ol {
            margin: 0 0 24px;
            padding-left: 1.5em;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body img {
            border-radius: 12px;
            margin: 28px 0;
            box-shadow: var(--shadow);
        }
        .article-body a {
            color: var(--primary);
            border-bottom: 1px solid rgba(46, 111, 219, 0.3);
        }
        .article-body a:hover {
            border-bottom-color: var(--primary);
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
        }
        .article-body th,
        .article-body td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }
        .article-body th {
            background: var(--primary-light);
            color: var(--text-strong);
            font-weight: 600;
        }

        /* 文章标签 */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 28px 0 0;
        }
        .tag-pill {
            display: inline-block;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
        }

        /* 相关阅读 */
        .related-section {
            margin-top: 48px;
        }
        .related-section h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 20px;
            position: relative;
            padding-left: 14px;
        }
        .related-section h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            border-radius: 4px;
            background: var(--primary);
        }
        .related-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .related-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
            display: block;
        }
        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary);
        }
        .related-card .rc-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--primary-light);
        }
        .related-card .rc-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .related-card:hover .rc-img img {
            transform: scale(1.05);
        }
        .related-card .rc-body {
            padding: 16px 20px 20px;
        }
        .related-card .rc-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            line-height: 1.5;
            margin-bottom: 6px;
        }
        .related-card .rc-date {
            font-size: 13px;
            color: var(--text-faint);
        }

        /* 侧边栏 */
        .article-side {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .side-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
        }
        .side-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 16px;
            position: relative;
            padding-left: 14px;
        }
        .side-card h3::before {
            content: "";
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            border-radius: 4px;
            background: var(--primary);
        }
        .side-nav-list {
            list-style: none;
        }
        .side-nav-list li {
            border-bottom: 1px dashed var(--border);
        }
        .side-nav-list li:last-child {
            border-bottom: none;
        }
        .side-nav-list a {
            display: block;
            padding: 10px 0;
            color: var(--text-muted);
            font-size: 15px;
            transition: color 0.25s ease, padding-left 0.25s ease;
        }
        .side-nav-list a:hover {
            color: var(--primary);
            padding-left: 6px;
        }
        .side-nav-list a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .hot-list {
            list-style: none;
            counter-reset: hot;
        }
        .hot-list li {
            counter-increment: hot;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
            display: flex;
            gap: 12px;
            align-items: baseline;
        }
        .hot-list li:last-child {
            border-bottom: none;
        }
        .hot-list li::before {
            content: counter(hot);
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            min-width: 24px;
            height: 24px;
            border-radius: 8px;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            line-height: 1;
            flex-shrink: 0;
        }
        .hot-list a {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            transition: color 0.25s ease;
        }
        .hot-list a:hover {
            color: var(--primary);
        }
        .side-cta {
            background: #fff;
            border: 1.5px solid var(--primary);
            text-align: center;
            padding: 28px 24px;
        }
        .side-cta h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 8px;
        }
        .side-cta p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 18px;
        }
        .side-cta .btn-primary {
            display: inline-block;
            width: 100%;
            text-align: center;
        }

        /* ===== 未找到 ===== */
        .not-found {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 64px 32px;
            text-align: center;
            box-shadow: var(--shadow);
        }
        .not-found .nf-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 28px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
        }
        .not-found h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 10px;
        }
        .not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-block;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
            box-shadow: 0 4px 16px rgba(46, 111, 219, 0.18);
            line-height: 1.4;
        }
        .btn-primary:hover {
            background: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 6px 22px rgba(255, 138, 61, 0.28);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(-1px);
        }
        .btn-secondary {
            display: inline-block;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            background: #fff;
            color: var(--primary);
            font-size: 15px;
            font-weight: 600;
            border: 1.5px solid var(--primary);
            cursor: pointer;
            transition: all 0.25s ease;
            line-height: 1.4;
        }
        .btn-secondary:hover {
            background: var(--primary-light);
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #fff;
            padding: 80px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-block;
            padding: 5px 18px;
            border-radius: var(--radius-pill);
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: 15px;
            max-width: 560px;
            margin: 0 auto;
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 22px 4px;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            line-height: 1.5;
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1.5px solid var(--border);
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 500;
            flex-shrink: 0;
            transition: all 0.25s ease;
        }
        .faq-item.open .faq-icon {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 320px;
            padding-top: 12px;
        }

        /* ===== 联系 CTA ===== */
        .contact-section {
            padding: 80px 0;
            background: var(--bg);
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
            align-items: start;
        }
        .contact-info h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .contact-info>p {
            color: var(--text-muted);
            font-size: 15px;
            margin-bottom: 28px;
        }
        .contact-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .contact-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            color: var(--text-muted);
            font-size: 15px;
        }
        .contact-list .ci-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .contact-list .ci-icon svg {
            width: 20px;
            height: 20px;
            stroke: var(--primary);
            fill: none;
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .contact-form {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 32px;
            box-shadow: var(--shadow);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 8px;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: var(--bg);
            font-size: 15px;
            color: var(--text-strong);
            outline: none;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            resize: vertical;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 111, 219, 0.12);
            background: #fff;
        }
        .form-group textarea {
            min-height: 110px;
        }
        .form-submit {
            width: 100%;
        }
        .privacy-note {
            font-size: 13px;
            color: var(--text-faint);
            text-align: center;
            margin-top: 14px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--footer-bg);
            color: #A6B4CE;
            padding: 64px 0 0;
        }
        .footer-grid {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
        }
        .footer-brand .brand-icon {
            background: #fff;
            color: var(--footer-bg);
        }
        .footer-brand .brand-text {
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #A6B4CE;
            margin-top: 12px;
            max-width: 300px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col li {
            margin-bottom: 10px;
            font-size: 14px;
            color: #A6B4CE;
            line-height: 1.6;
        }
        .footer-col a {
            color: #A6B4CE;
            transition: color 0.25s ease;
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 48px;
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            font-size: 13px;
            color: #7A88A6;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .article-side {
                order: 2;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .article-side .side-cta {
                grid-column: span 2;
            }
            .article-main {
                order: 1;
            }
            .related-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 132px 0 40px;
            }
            .page-banner h1 {
                font-size: 26px;
            }
            .header-inner {
                padding: 8px 16px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 12px);
                left: 0;
                right: 0;
                flex-direction: column;
                background: #fff;
                border-radius: 16px;
                border: 1px solid var(--border);
                box-shadow: var(--shadow-hover);
                padding: 12px;
                gap: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-link {
                display: block;
                width: 100%;
                text-align: center;
                padding: 12px 16px;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .article-body {
                padding: 28px 20px;
            }
            .article-section {
                padding: 40px 0 56px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-side {
                display: flex;
                flex-direction: column;
            }
            .contact-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .faq-section,
            .contact-section {
                padding: 56px 0;
            }
            .container {
                padding: 0 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
            .section-head h2 {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .brand-text {
                font-size: 16px;
            }
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }
            .page-banner h1 {
                font-size: 22px;
            }
            .article-meta {
                gap: 10px;
                font-size: 13px;
            }
            .article-body {
                font-size: 15px;
                line-height: 1.75;
                padding: 24px 18px;
            }
            .article-body h2 {
                font-size: 19px;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                text-align: center;
                padding: 13px 20px;
            }
            .contact-form {
                padding: 24px 20px;
            }
            .faq-question {
                font-size: 15px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2E6FDB;
            --primary-light: #EAF2FD;
            --primary-lighter: #F1F6FE;
            --bg: #F7FAFC;
            --surface: #FFFFFF;
            --text-strong: #132238;
            --text-muted: #5B6B85;
            --text-faint: #8A99B3;
            --border: #E3EAF2;
            --accent: #FF8A3D;
            --data-bg: #1D4FA3;
            --footer-bg: #0F1C33;
            --radius: 14px;
            --radius-xs: 10px;
            --shadow: 0 4px 20px rgba(19, 34, 56, 0.06);
            --shadow-md: 0 8px 32px rgba(19, 34, 56, 0.10);
            --transition: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text-strong);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
        }

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

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            position: relative;
            z-index: 2;
        }

        /* 按钮体系 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            padding: 12px 28px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            line-height: 1.4;
            min-height: 44px;
        }
        .btn-primary:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: translateY(1px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--primary);
            padding: 12px 28px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            border: 1.5px solid var(--primary);
            cursor: pointer;
            transition: all var(--transition);
            line-height: 1.4;
            min-height: 44px;
        }
        .btn-secondary:hover {
            background: var(--primary-light);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        .btn-secondary:active {
            transform: translateY(1px);
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
        }
        .text-link:hover {
            color: var(--accent);
            gap: 10px;
        }

        /* 悬浮胶囊导航 */
        .site-header {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 48px);
            max-width: 1200px;
            background: rgba(255, 255, 255, 0.88);
            -webkit-backdrop-filter: blur(16px);
            backdrop-filter: blur(16px);
            border: 1px solid var(--border);
            border-radius: 999px;
            box-shadow: 0 4px 24px rgba(19, 34, 56, 0.08);
            z-index: 1000;
            transition: box-shadow var(--transition), background var(--transition);
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.94);
            box-shadow: 0 6px 32px rgba(19, 34, 56, 0.12);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            padding: 0 20px 0 24px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
        }
        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-strong);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .btn-nav {
            padding: 10px 22px;
            font-size: 14px;
            margin-left: 12px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 10px;
            border-radius: 50%;
        }
        .nav-toggle span {
            width: 20px;
            height: 2px;
            background: var(--text-strong);
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            background: #fff;
            border-radius: 16px;
            padding: 16px;
            margin: 0 16px 16px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
        }
        .mobile-menu.open {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-link {
            padding: 12px 16px;
            border-radius: 10px;
            font-size: 15px;
            color: var(--text-muted);
            font-weight: 500;
            transition: all var(--transition);
        }
        .mobile-link:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .mobile-link.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }
        .btn-mobile {
            margin-top: 8px;
            justify-content: center;
        }

        /* 内页标题带 */
        .page-banner {
            padding: 140px 0 64px;
            background: linear-gradient(135deg, #EAF2FD 0%, #F7FAFC 60%);
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }
        .banner-overlay {
            position: absolute;
            inset: 0;
            background: rgba(247, 250, 252, 0.88);
            z-index: 1;
        }
        .banner-inner {
            position: relative;
            z-index: 2;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .banner-inner h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.3;
            margin-bottom: 8px;
        }
        .banner-inner p {
            font-size: 17px;
            color: var(--text-muted);
            margin-bottom: 16px;
            max-width: 640px;
        }
        .breadcrumb {
            font-size: 14px;
            color: var(--text-faint);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }

        /* 图文横卡 */
        .alt-section {
            padding: 80px 0;
        }
        .alt-section.tinted {
            background: var(--surface);
        }
        .alt-section.decorated {
            position: relative;
            overflow: hidden;
            background-color: var(--bg);
        }
        .alt-section.decorated::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            z-index: 1;
        }
        .alt-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .alt-row.reverse .alt-text {
            order: 2;
        }
        .alt-row.reverse .alt-image {
            order: 1;
        }
        .alt-text .tag {
            display: inline-flex;
            align-items: center;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .alt-text h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.35;
            margin-bottom: 14px;
        }
        .alt-text .desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 18px;
        }
        .check-list {
            margin-bottom: 24px;
        }
        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 7px 0;
            font-size: 15px;
            color: var(--text-strong);
            line-height: 1.6;
        }
        .check-list li::before {
            content: '';
            flex-shrink: 0;
            width: 18px;
            height: 18px;
            margin-top: 4px;
            border-radius: 50%;
            background: var(--primary-light);
            position: relative;
        }
        .check-list li::after {
            content: '✓';
            position: absolute;
            margin-left: 2px;
            margin-top: 3px;
            font-size: 11px;
            color: var(--primary);
            font-weight: 700;
            width: 18px;
            text-align: center;
        }
        .alt-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            background: var(--surface);
            border: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .alt-image:hover {
            box-shadow: var(--shadow-md);
        }
        .alt-image img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .alt-image:hover img {
            transform: scale(1.03);
        }

        /* 价值卡片 */
        .value-section {
            background: var(--data-bg);
            position: relative;
            overflow: hidden;
            padding: 72px 0;
        }
        .value-section::after {
            content: '';
            position: absolute;
            right: -80px;
            bottom: -120px;
            width: 300px;
            height: 300px;
            border: 2px solid rgba(255, 255, 255, 0.08);
            border-radius: 50%;
            pointer-events: none;
        }
        .value-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .value-header .tag {
            display: inline-flex;
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .value-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .value-header p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto;
        }
        .value-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .value-card {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: all var(--transition);
        }
        .value-card:hover {
            background: rgba(255, 255, 255, 0.14);
            transform: translateY(-4px);
        }
        .value-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
        }
        .value-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }
        .value-card p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
        }

        /* FAQ */
        .faq-section {
            padding: 80px 0;
            background: var(--surface);
        }
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-title {
            text-align: center;
            margin-bottom: 40px;
        }
        .faq-title .tag {
            display: inline-flex;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
        }
        .faq-title h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-strong);
        }
        .faq-item {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 0 24px;
            margin-bottom: 12px;
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: pointer;
        }
        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 0;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-strong);
            gap: 16px;
        }
        .faq-icon {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            border: 1.5px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: var(--text-faint);
            transition: all var(--transition);
            flex-shrink: 0;
            font-weight: 500;
        }
        .faq-item.active .faq-icon {
            border-color: var(--primary);
            color: var(--primary);
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-answer p {
            padding: 0 0 18px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        /* CTA 区 */
        .cta-section {
            padding: 80px 0;
            background: var(--bg);
        }
        .cta-inner {
            background: var(--primary);
            border-radius: 22px;
            padding: 56px 48px;
            position: relative;
            overflow: hidden;
            text-align: center;
            box-shadow: var(--shadow-md);
        }
        .cta-inner::before {
            content: '';
            position: absolute;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            top: -60px;
            right: -40px;
        }
        .cta-inner::after {
            content: '';
            position: absolute;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            bottom: -40px;
            left: 60px;
        }
        .cta-inner h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-actions .btn-primary {
            background: #fff;
            color: var(--primary);
        }
        .cta-actions .btn-primary:hover {
            background: var(--accent);
            color: #fff;
        }
        .cta-actions .btn-secondary {
            border-color: #fff;
            color: #fff;
        }
        .cta-actions .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }

        /* 页脚 */
        .site-footer {
            background: var(--footer-bg);
            padding: 60px 0 24px;
        }
        .footer-grid {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 40px;
            margin-bottom: 48px;
        }
        .footer-brand p {
            color: #A6B4CE;
            font-size: 14px;
            line-height: 1.7;
            margin-top: 4px;
            max-width: 260px;
        }
        .footer-brand .brand-icon {
            background: rgba(46, 111, 219, 0.9);
        }
        .footer-brand .brand-text {
            color: #fff;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li {
            font-size: 14px;
            color: #A6B4CE;
        }
        .footer-col ul li a {
            color: #A6B4CE;
            font-size: 14px;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .btn-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-menu {
                display: none;
            }
            .mobile-menu.open {
                display: flex;
            }
            .alt-row {
                gap: 36px;
            }
            .value-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            body {
                font-size: 15px;
            }
            .container {
                padding: 0 16px;
            }
            .site-header {
                width: calc(100% - 32px);
                top: 12px;
            }
            .nav-container {
                height: 58px;
                padding: 0 12px 0 16px;
            }
            .brand-text {
                font-size: 16px;
            }
            .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
            .page-banner {
                padding: 110px 0 48px;
            }
            .banner-inner h1 {
                font-size: 26px;
            }
            .alt-section {
                padding: 56px 0;
            }
            .alt-row {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .alt-row.reverse .alt-text {
                order: 1;
            }
            .alt-row.reverse .alt-image {
                order: 2;
            }
            .alt-text h2 {
                font-size: 22px;
            }
            .value-section {
                padding: 56px 0;
            }
            .value-header h2 {
                font-size: 24px;
            }
            .faq-section {
                padding: 56px 0;
            }
            .faq-title h2 {
                font-size: 24px;
            }
            .cta-section {
                padding: 56px 0;
            }
            .cta-inner {
                padding: 40px 24px;
            }
            .cta-inner h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .btn-primary,
            .btn-secondary {
                width: 100%;
                padding: 12px 20px;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .alt-image img {
                aspect-ratio: 16/10;
            }
            .value-card {
                padding: 24px 18px;
            }
            .faq-item {
                padding: 0 16px;
            }
        }