/* roulang page: index */
:root {
            --primary: #0F52BA;
            --primary-dark: #0A3982;
            --primary-light: #EBF2FF;
            --accent: #00A86B;
            --accent-hover: #008f5a;
            --bg-main: #F8FAFC;
            --bg-card: #FFFFFF;
            --bg-dark: #0B192C;
            --bg-dark-card: #132742;
            --text-main: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --border-dark: rgba(255, 255, 255, 0.12);
            --radius-sm: 6px;
            --radius: 12px;
            --radius-lg: 18px;
            --shadow-sm: 0 2px 8px rgba(15, 82, 186, 0.04);
            --shadow: 0 8px 24px -4px rgba(15, 82, 186, 0.08);
            --shadow-lg: 0 16px 36px -6px rgba(15, 82, 186, 0.12);
            --transition: all 0.25s ease-in-out;
        }

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

        html {
            scroll-behavior: smooth;
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", sans-serif;
            background-color: var(--bg-main);
            color: var(--text-body);
            line-height: 1.75;
        }

        body {
            overflow-x: hidden;
        }

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部通栏 */
        .topbar {
            background-color: #081220;
            color: #94A3B8;
            font-size: 13px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .topbar-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .topbar-links span {
            margin-right: 18px;
        }
        .topbar-badge {
            background: rgba(0, 168, 107, 0.15);
            color: var(--accent);
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 500;
        }

        /* 主导航 */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
        }
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 72px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .brand-logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: bold;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 28px;
            align-items: center;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary);
        }
        .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;
            border: 1px solid transparent;
            transition: var(--transition);
            gap: 6px;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            box-shadow: 0 4px 14px rgba(15, 82, 186, 0.3);
        }
        .btn-accent {
            background-color: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background-color: var(--accent-hover);
        }
        .btn-outline {
            border-color: var(--border);
            color: var(--text-body);
            background: #fff;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline-white {
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
            background: transparent;
        }
        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
        }

        /* Hero 试用申请版式 */
        .hero-section {
            background: linear-gradient(135deg, #0F172A 0%, #0B192C 100%);
            position: relative;
            padding: 70px 0 90px;
            color: #fff;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: url('/assets/images/7123b8a7778b0580.webp') center/cover no-repeat;
            opacity: 0.15;
            pointer-events: none;
        }
        .hero-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 40px;
            align-items: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: rgba(15, 82, 186, 0.35);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 30px;
            color: #60A5FA;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .hero-title {
            font-size: 38px;
            line-height: 1.25;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: #CBD5E1;
            margin-bottom: 28px;
        }
        .hero-points {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
            margin-bottom: 30px;
        }
        .hero-point-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: #E2E8F0;
        }
        .point-dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
        }

        /* 试用申请卡片 */
        .trial-card {
            background: rgba(255, 255, 255, 0.98);
            color: var(--text-main);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .trial-card-head {
            margin-bottom: 20px;
            text-align: center;
        }
        .trial-card-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .trial-card-sub {
            font-size: 13px;
            color: var(--text-muted);
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 6px;
        }
        .form-input, .form-select, .form-textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text-main);
            background: #F8FAFC;
            transition: var(--transition);
        }
        .form-input:focus, .form-select:focus, .form-textarea:focus {
            outline: none;
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(15, 82, 186, 0.15);
        }

        /* Section 标准排版 */
        .section {
            padding: 80px 0;
            position: relative;
        }
        .section-alt {
            background-color: #FFFFFF;
        }
        .section-dark {
            background-color: var(--bg-dark);
            color: #fff;
        }
        .section-head {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 50px;
        }
        .section-tag {
            display: inline-block;
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 10px;
        }
        .section-dark .section-tag {
            color: #60A5FA;
        }
        .section-title {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }
        .section-dark .section-title {
            color: #FFFFFF;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .section-dark .section-desc {
            color: #94A3B8;
        }

        /* 指标看板区 (#dashboard) */
        .dash-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 30px;
        }
        .dash-card {
            background: #FFFFFF;
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .dash-card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .dash-value {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .dash-trend {
            font-size: 12px;
            display: flex;
            align-items: center;
            gap: 4px;
            color: var(--accent);
            font-weight: 600;
        }
        .dash-mockup-wrapper {
            background: #081220;
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: #fff;
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 24px;
        }
        .mockup-chart {
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius);
            padding: 20px;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }
        .chart-bar-group {
            display: flex;
            align-items: flex-end;
            gap: 16px;
            height: 160px;
            padding-top: 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .chart-bar {
            flex: 1;
            background: linear-gradient(to top, var(--primary), #3B82F6);
            border-radius: 4px 4px 0 0;
            position: relative;
        }
        .chart-bar-label {
            position: absolute;
            bottom: -24px;
            left: 50%;
            transform: translateX(-50%);
            font-size: 11px;
            color: #94A3B8;
        }

        /* 矩阵卡片网格 (#features) */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .matrix-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 28px;
            transition: var(--transition);
        }
        .matrix-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: var(--primary-light);
        }
        .matrix-icon {
            width: 48px;
            height: 48px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
        }
        .matrix-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .matrix-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 优势网格 (#advantages) */
        .adv-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .adv-card {
            background: #F8FAFC;
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--border);
            display: flex;
            gap: 16px;
        }
        .adv-num {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.5;
        }
        .adv-content h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .adv-content p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 解决方案纵深 (#products) */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .solution-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .solution-img-box {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .solution-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .solution-card:hover .solution-img-box img {
            transform: scale(1.05);
        }
        .solution-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .solution-tag-list {
            display: flex;
            gap: 6px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .solution-badge {
            background: #F1F5F9;
            color: var(--text-muted);
            font-size: 11px;
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 600;
        }
        .solution-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .solution-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        /* 传统 vs 数字化对比 (#comparison) */
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-dark-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-dark);
        }
        .compare-table th, .compare-table td {
            padding: 18px 24px;
            text-align: left;
            border-bottom: 1px solid var(--border-dark);
            font-size: 14px;
        }
        .compare-table th {
            background: rgba(0, 0, 0, 0.2);
            color: #94A3B8;
            font-weight: 600;
        }
        .compare-table tr:last-child td {
            border-bottom: none;
        }
        .badge-bad {
            color: #F87171;
            font-weight: 600;
        }
        .badge-good {
            color: #34D399;
            font-weight: 600;
        }

        /* 标杆案例 (#cases) */
        .case-showcase {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 36px;
            align-items: center;
        }
        .case-image {
            border-radius: var(--radius);
            overflow: hidden;
            height: 320px;
        }
        .case-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .case-detail h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 14px;
        }
        .case-metrics-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
            margin: 20px 0;
            padding: 16px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .metric-box-val {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
        }
        .metric-box-lbl {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 客户故事 (#stories) */
        .stories-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .story-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 28px;
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .story-quote {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 20px;
            position: relative;
        }
        .story-author {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .story-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }
        .story-info h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
        }
        .story-info p {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 数据统计条 (#statistics) */
        .stats-banner {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            padding: 50px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .stat-item h2 {
            font-size: 40px;
            font-weight: 800;
            margin-bottom: 6px;
            color: #FFFFFF;
        }
        .stat-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
        }

        /* 评价墙 (#reviews) */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .review-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--border);
        }
        .review-stars {
            color: #F59E0B;
            font-size: 14px;
            margin-bottom: 10px;
        }
        .review-content {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .review-user {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-muted);
        }

        /* 资讯动态 (#news) */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }
        .news-card-body {
            padding: 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .news-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
            line-height: 1.5;
        }
        .news-excerpt {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 资质与合规 (#security) */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .security-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px;
            text-align: center;
            border: 1px solid var(--border);
        }
        .security-icon {
            width: 44px;
            height: 44px;
            margin: 0 auto 12px;
            background: #ECFDF5;
            color: var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }
        .security-card h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .security-card p {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* FAQ 手风琴 (#faq) */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
        }
        .faq-header {
            padding: 18px 24px;
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: var(--transition);
        }
        .faq-header:hover {
            color: var(--primary);
        }
        .faq-arrow {
            font-size: 12px;
            transition: var(--transition);
        }
        .faq-body {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
        }
        .faq-item.active .faq-body {
            padding: 0 24px 18px;
            max-height: 200px;
        }
        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
        }

        /* 收口转化区 (#contact) */
        .cta-section {
            background: linear-gradient(135deg, #0B192C 0%, #081220 100%);
            color: #fff;
            padding: 80px 0;
        }
        .cta-box {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .cta-info h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-info p {
            font-size: 15px;
            color: #94A3B8;
            margin-bottom: 24px;
            line-height: 1.8;
        }
        .cta-phone-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            color: var(--accent);
        }

        /* 页脚 Footer */
        .footer {
            background-color: #040911;
            color: #64748B;
            padding: 60px 0 30px;
            font-size: 13px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 40px;
        }
        .footer-brand h4 {
            font-size: 18px;
            color: #fff;
            margin-bottom: 12px;
            font-weight: 700;
        }
        .footer-brand p {
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .footer-col h5 {
            color: #E2E8F0;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-bottom {
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
            font-size: 12px;
            color: #475569;
        }

        /* 移动端菜单控制 */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-main);
            cursor: pointer;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .hero-grid, .cta-box, .case-showcase {
                grid-template-columns: 1fr;
            }
            .dash-grid, .stats-grid, .security-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .matrix-grid, .adv-grid, .solutions-grid, .reviews-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .dash-mockup-wrapper {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .topbar {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-links {
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 20px;
                box-shadow: var(--shadow-lg);
                display: none;
                border-bottom: 1px solid var(--border);
            }
            .nav-links.show {
                display: flex;
            }
            .hero-title {
                font-size: 26px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .matrix-grid, .adv-grid, .solutions-grid, .stories-grid, .reviews-grid, .news-grid, .dash-grid, .stats-grid, .security-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .cta-box {
                padding: 24px;
            }
            .case-showcase {
                padding: 20px;
            }
        }