/* roulang page: index */
:root {
            --primary: #0F52BA;
            --primary-dark: #0A3A85;
            --primary-light: #EBF2FE;
            --accent: #FF6B35;
            --accent-hover: #E8551F;
            --text-dark: #1A202C;
            --text-muted: #5A6A85;
            --bg-page: #F8FAFC;
            --bg-card: #FFFFFF;
            --bg-dark: #0D131F;
            --border-color: #E2E8F0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 10px 20px -3px rgba(15, 82, 186, 0.08);
            --shadow-lg: 0 20px 25px -5px rgba(15, 82, 186, 0.12);
            --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
            --container-max: 1240px;
        }

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

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
            background-color: var(--bg-page);
            color: var(--text-dark);
            line-height: 1.75;
            letter-spacing: 0.02em;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        /* 顶部通告条与导航 */
        .top-bar {
            background-color: #0B1E3B;
            color: #A0AEC0;
            font-size: 13px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .top-bar-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .top-bar-left span {
            margin-right: 20px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
        }

        .brand-logo-badge {
            background: var(--primary-light);
            color: var(--primary);
            font-size: 11px;
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: 600;
            text-transform: uppercase;
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 32px;
            align-items: center;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: #334155;
            position: relative;
            padding: 8px 0;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--primary);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #FFFFFF;
            box-shadow: 0 4px 12px rgba(15, 82, 186, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(15, 82, 186, 0.35);
        }

        .btn-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            color: #FFFFFF;
            box-shadow: 0 4px 12px rgba(255, 107, 53, 0.25);
        }

        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(255, 107, 53, 0.35);
        }

        .btn-outline {
            border-color: var(--border-color);
            background: #FFFFFF;
            color: var(--text-dark);
        }

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

        /* 模块基础 */
        .section {
            padding: 90px 0;
            position: relative;
        }

        .section-alt {
            background-color: #FFFFFF;
        }

        .section-dark {
            background-color: var(--bg-dark);
            color: #FFFFFF;
        }

        .section-header {
            max-width: 800px;
            margin: 0 auto 54px;
            text-align: center;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            background: var(--primary-light);
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .section-dark .section-tag {
            background: rgba(255, 255, 255, 0.1);
            color: #93C5FD;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-dark);
            margin-bottom: 16px;
        }

        .section-dark .section-title {
            color: #FFFFFF;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .section-dark .section-desc {
            color: #94A3B8;
        }

        /* 1. Hero 资源检索形态首屏 */
        .hero-resource {
            position: relative;
            background: linear-gradient(180deg, #091E3A 0%, #0F2D59 100%);
            background-image: linear-gradient(rgba(9, 30, 58, 0.88), rgba(15, 45, 89, 0.95)), url('/assets/images/a9a09acd7583f912.webp');
            background-size: cover;
            background-position: center;
            color: #FFFFFF;
            padding: 100px 0 110px;
            text-align: center;
        }

        .hero-content-box {
            max-width: 860px;
            margin: 0 auto;
        }

        .hero-badge-wrap {
            margin-bottom: 20px;
        }

        .hero-badge {
            background: rgba(255, 107, 53, 0.2);
            border: 1px solid rgba(255, 107, 53, 0.4);
            color: #FF8F6B;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
        }

        .hero-title {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 24px;
            letter-spacing: -0.01em;
        }

        .hero-lead {
            font-size: 17px;
            color: #CBD5E1;
            line-height: 1.8;
            margin-bottom: 40px;
        }

        .hero-search-bar {
            max-width: 680px;
            margin: 0 auto 28px;
            background: #FFFFFF;
            padding: 8px;
            border-radius: var(--radius-md);
            display: flex;
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.2);
        }

        .hero-search-bar input {
            flex: 1;
            border: none;
            outline: none;
            padding: 12px 18px;
            font-size: 15px;
            color: var(--text-dark);
            border-radius: var(--radius-sm);
        }

        .hero-search-bar button {
            border: none;
            padding: 0 28px;
        }

        .hero-hot-tags {
            display: flex;
            justify-content: center;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #94A3B8;
        }

        .hot-tag-item {
            background: rgba(255, 255, 255, 0.12);
            color: #F1F5F9;
            padding: 4px 12px;
            border-radius: 4px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: var(--transition);
        }

        .hot-tag-item:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #FFFFFF;
        }

        /* 2. 全球与全域覆盖架构 */
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .coverage-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 32px 24px;
            border-radius: var(--radius-md);
            transition: var(--transition);
        }

        .coverage-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: #CBD5E1;
        }

        .coverage-icon {
            width: 48px;
            height: 48px;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .coverage-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

        .coverage-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 3. 场景卡 */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .scenario-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .scenario-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }

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

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

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

        .scenario-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .scenario-name {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .scenario-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex: 1;
        }

        .scenario-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }

        .scenario-tag-pill {
            font-size: 12px;
            background: #F1F5F9;
            color: #475569;
            padding: 3px 8px;
            border-radius: 4px;
        }

        /* 4. 本地化能力与高可用技术 */
        .split-feature {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .feature-img-box {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .feature-points-list {
            list-style: none;
            margin-top: 24px;
        }

        .feature-points-list li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 16px;
            font-size: 15px;
            color: #334155;
            line-height: 1.6;
        }

        .feature-points-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            top: 0;
            color: var(--primary);
            font-weight: 800;
        }

        /* 5. 前后对比 */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .compare-box {
            padding: 36px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
        }

        .compare-traditional {
            background: #FFFBFB;
            border-color: #FED7D7;
        }

        .compare-modern {
            background: #F0FDF4;
            border-color: #BBF7D0;
        }

        .compare-badge {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 4px;
            margin-bottom: 18px;
        }

        .badge-red {
            background: #FEE2E2;
            color: #DC2626;
        }

        .badge-green {
            background: #DCFCE7;
            color: #16A34A;
        }

        .compare-item {
            margin-bottom: 20px;
        }

        .compare-item h4 {
            font-size: 16px;
            margin-bottom: 6px;
        }

        .compare-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 6. 产品截图舞台 */
        .stage-container {
            background: #0B1320;
            border-radius: var(--radius-lg);
            padding: 48px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .stage-browser-bar {
            height: 38px;
            background: #1E293B;
            border-radius: 8px 8px 0 0;
            display: flex;
            align-items: center;
            padding: 0 16px;
            gap: 8px;
        }

        .stage-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #475569;
        }

        .stage-dot.red { background: #EF4444; }
        .stage-dot.yellow { background: #F59E0B; }
        .stage-dot.green { background: #10B981; }

        .stage-view-wrap {
            border-radius: 0 0 8px 8px;
            overflow: hidden;
            position: relative;
        }

        /* 7. 6大核心矩阵 */
        .feature-matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .matrix-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 28px;
            border-radius: var(--radius-md);
            transition: var(--transition);
        }

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

        .matrix-icon-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.85;
            margin-bottom: 12px;
        }

        .matrix-item h3 {
            font-size: 18px;
            margin-bottom: 10px;
        }

        .matrix-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 8. 运营数据条 */
        .metrics-strip {
            background: linear-gradient(135deg, #0F52BA, #0A3A85);
            color: #FFFFFF;
            padding: 60px 0;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .metric-value {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 8px;
            color: #FFFFFF;
        }

        .metric-label {
            font-size: 14px;
            color: #BFDBFE;
            font-weight: 500;
        }

        /* 9. 客户案例 */
        .case-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            margin-bottom: 32px;
            box-shadow: var(--shadow-sm);
        }

        .case-img {
            height: 100%;
            min-height: 280px;
            object-fit: cover;
        }

        .case-info {
            padding: 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .case-tag {
            font-size: 12px;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 10px;
            border-radius: 4px;
            align-self: flex-start;
            margin-bottom: 14px;
            font-weight: 600;
        }

        .case-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .case-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .case-stats {
            display: flex;
            gap: 28px;
            padding-top: 16px;
            border-top: 1px solid var(--border-color);
        }

        .case-stat-num {
            font-size: 20px;
            font-weight: 700;
            color: var(--accent);
        }

        .case-stat-txt {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 10. 用户口碑 */
        .testi-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .testi-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 28px;
            border-radius: var(--radius-md);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .testi-content {
            font-size: 14px;
            color: #334155;
            line-height: 1.75;
            margin-bottom: 20px;
            font-style: italic;
        }

        .testi-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testi-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: #E2E8F0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            font-size: 16px;
        }

        .testi-name {
            font-size: 14px;
            font-weight: 700;
        }

        .testi-role {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 11. 资讯列表与方法论 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .news-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .news-date {
            font-size: 12px;
            color: #94A3B8;
            margin-bottom: 10px;
        }

        .news-title {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .news-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            flex: 1;
            margin-bottom: 18px;
        }

        .news-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 12. 快速解答 FAQ */
        .faq-accordion {
            max-width: 820px;
            margin: 0 auto;
        }

        details.faq-item {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

        details.faq-item[open] {
            border-color: #CBD5E1;
            box-shadow: var(--shadow-sm);
        }

        summary.faq-question {
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        summary.faq-question::-webkit-details-marker {
            display: none;
        }

        summary.faq-question::after {
            content: "+";
            font-size: 20px;
            font-weight: 400;
            color: var(--text-muted);
            transition: transform 0.2s;
        }

        details[open] summary.faq-question::after {
            content: "−";
            color: var(--primary);
        }

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            border-top: 1px dashed var(--border-color);
            padding-top: 14px;
        }

        /* 13. 联系销售收口表单 */
        .contact-sales-box {
            background: linear-gradient(135deg, #0F52BA 0%, #0A3A85 100%);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            color: #FFFFFF;
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .sales-info h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .sales-info p {
            font-size: 16px;
            color: #BFDBFE;
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .sales-points {
            list-style: none;
        }

        .sales-points li {
            margin-bottom: 12px;
            font-size: 14px;
            color: #E2E8F0;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sales-form {
            background: #FFFFFF;
            padding: 32px;
            border-radius: var(--radius-md);
            color: var(--text-dark);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
        }

        .sales-form h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
            text-align: center;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 6px;
            color: #475569;
        }

        .form-control {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 82, 186, 0.15);
        }

        /* 页脚 */
        .site-footer {
            background: #080D1A;
            color: #94A3B8;
            padding: 70px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 48px;
            margin-bottom: 50px;
        }

        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .footer-desc {
            line-height: 1.8;
            margin-bottom: 20px;
            color: #64748B;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #F8FAFC;
            margin-bottom: 18px;
        }

        .footer-links {
            list-style: none;
        }

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

        .footer-links a:hover {
            color: #FFFFFF;
        }

        .footer-contact-item {
            margin-bottom: 12px;
            line-height: 1.6;
        }

        .footer-bottom {
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: #64748B;
        }

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

        /* 移动端汉堡与自适应 */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--text-dark);
        }

        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-3, .feature-matrix-grid, .testi-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .case-card {
                grid-template-columns: 1fr;
            }
            .contact-sales-box {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 768px) {
            .top-bar {
                display: none;
            }
            .nav-menu {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .split-feature, .compare-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-lead {
                font-size: 15px;
            }
            .hero-search-bar {
                flex-direction: column;
                gap: 8px;
            }
            .hero-search-bar button {
                width: 100%;
                padding: 12px;
            }
            .grid-4, .grid-3, .feature-matrix-grid, .testi-grid, .news-grid, .metrics-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
            .stage-container {
                padding: 20px;
            }
            .section {
                padding: 60px 0;
            }
        }