/* roulang page: index */
:root {
            --primary: #0A192F;
            --primary-dark: #070D18;
            --accent: #10B981;
            --accent-hover: #059669;
            --text-main: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --bg-light: #F8FAFC;
            --bg-white: #FFFFFF;
            --border-light: #E2E8F0;
            --border-dark: rgba(255, 255, 255, 0.08);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-subtle: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.03);
            --shadow-float: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
            --transition: all 0.25s ease-in-out;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-body);
            line-height: 1.68;
            -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: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部通告栏 */
        .top-bar {
            background-color: var(--primary-dark);
            color: #94A3B8;
            font-size: 13px;
            border-bottom: 1px solid var(--border-dark);
            padding: 8px 0;
        }
        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .top-tags span {
            display: inline-block;
            margin-right: 18px;
        }
        .top-tags span::before {
            content: "•";
            color: var(--accent);
            margin-right: 6px;
        }

        /* 主导航 */
        .header-main {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-light);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .brand-logo .logo-icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--primary), #1E3A8A);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 800;
        }
        .nav-links {
            display: flex;
            gap: 28px;
            list-style: none;
        }
        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
        }
        .nav-links a:hover {
            color: var(--accent);
        }
        .btn-header {
            background-color: var(--accent);
            color: #ffffff !important;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            border: none;
            cursor: pointer;
        }
        .btn-header:hover {
            background-color: var(--accent-hover);
            transform: translateY(-1px);
        }

        /* Section 基础 */
        section {
            padding: 88px 0;
            position: relative;
        }
        .section-light {
            background-color: var(--bg-white);
        }
        .section-alt {
            background-color: var(--bg-light);
        }
        .section-dark {
            background-color: var(--primary-dark);
            color: #CBD5E1;
        }
        .section-header {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 56px;
        }
        .section-badge {
            display: inline-block;
            background-color: rgba(16, 185, 129, 0.1);
            color: var(--accent);
            padding: 4px 14px;
            border-radius: 9999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .section-dark .section-badge {
            background-color: rgba(16, 185, 129, 0.2);
        }
        .section-header h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .section-dark .section-header h2 {
            color: #FFFFFF;
        }
        .section-header p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .section-dark .section-header p {
            color: #94A3B8;
        }

        /* 板块 1: Hero */
        .hero-section {
            background: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
            padding: 72px 0 96px;
            border-bottom: 1px solid var(--border-light);
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }
        .hero-content h1 {
            font-size: 46px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.22;
            letter-spacing: -1px;
            margin-bottom: 20px;
        }
        .hero-content h1 .highlight {
            color: var(--accent);
            display: inline;
        }
        .hero-desc {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 32px;
        }
        .hero-form-panel {
            background: #FFFFFF;
            padding: 32px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-float);
            border: 1px solid var(--border-light);
        }
        .form-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .form-group-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-bottom: 12px;
        }
        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
        }
        .btn-submit {
            width: 100%;
            padding: 14px;
            background-color: var(--primary);
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            margin-top: 8px;
        }
        .btn-submit:hover {
            background-color: #1E293B;
            transform: translateY(-2px);
        }
        .hero-metrics {
            display: flex;
            gap: 28px;
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid rgba(0,0,0,0.06);
        }
        .hero-metric-item strong {
            display: block;
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
        }
        .hero-metric-item span {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 板块 2: 品牌与体系 (双列不对称) */
        .system-arch-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .arch-image-wrap {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-float);
        }
        .arch-checklist {
            list-style: none;
            margin-top: 24px;
        }
        .arch-checklist li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 14px;
            font-size: 15px;
            color: var(--text-body);
        }
        .arch-checklist li::before {
            content: "✓";
            position: absolute;
            left: 0;
            top: 0;
            color: var(--accent);
            font-weight: 800;
        }

        /* 板块 3: 核心优势赋能区 (6卡片) */
        .matrix-6-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .matrix-card {
            background: var(--bg-white);
            padding: 32px 28px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .matrix-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-float);
            border-color: rgba(16, 185, 129, 0.4);
        }
        .matrix-icon {
            width: 48px;
            height: 48px;
            background: rgba(16, 185, 129, 0.08);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--accent);
            font-weight: 700;
            font-size: 20px;
        }
        .matrix-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .matrix-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 板块 4: 应用套件区 (3大卡) */
        .suite-3-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .suite-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 36px 30px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
        }
        .suite-card.highlight {
            border: 2px solid var(--accent);
            position: relative;
        }
        .suite-badge {
            position: absolute;
            top: -12px;
            right: 24px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            padding: 2px 10px;
            border-radius: 9999px;
            font-weight: 600;
        }
        .suite-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .suite-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
            min-height: 44px;
        }
        .suite-features {
            list-style: none;
            margin-bottom: 30px;
            border-top: 1px solid var(--border-light);
            padding-top: 20px;
        }
        .suite-features li {
            font-size: 14px;
            color: var(--text-body);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .suite-features li span {
            color: var(--accent);
            font-weight: bold;
        }

        /* 板块 5: 深色案例与风控理念区 */
        .dark-case-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .case-stats-panel {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 36px;
        }
        .stat-row {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-dark);
        }
        .stat-row:last-child {
            border-bottom: none;
        }
        .stat-row .stat-label {
            font-size: 15px;
            color: #94A3B8;
        }
        .stat-row .stat-val {
            font-size: 24px;
            font-weight: 700;
            color: var(--accent);
            font-family: monospace;
        }

        /* 板块 6: 业务链路演示 (步骤条) */
        .process-chain {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .process-node {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            position: relative;
        }
        .step-num {
            display: inline-block;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #FFFFFF;
            border-radius: 50%;
            text-align: center;
            line-height: 32px;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .process-node h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }
        .process-node p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 板块 7: 关键指标 KPI */
        .kpi-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .kpi-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px 20px;
            text-align: center;
            box-shadow: var(--shadow-subtle);
        }
        .kpi-value {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 8px;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        }
        .kpi-label {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }
        .kpi-sub {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 板块 8: 客户评价 */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            position: relative;
        }
        .quote-text {
            font-size: 14.5px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .client-profile {
            display: flex;
            align-items: center;
            gap: 14px;
            border-top: 1px solid var(--border-light);
            padding-top: 16px;
        }
        .client-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }
        .client-info strong {
            display: block;
            font-size: 14.5px;
            color: var(--text-main);
        }
        .client-info span {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 板块 9: 差异对比表 */
        .comparison-table-wrap {
            overflow-x: auto;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
        }
        .comp-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 14.5px;
        }
        .comp-table th, .comp-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-light);
        }
        .comp-table th {
            background: #F8FAFC;
            font-weight: 700;
            color: var(--text-main);
        }
        .comp-table tr:last-child td {
            border-bottom: none;
        }
        .comp-tag-pro {
            color: var(--accent);
            font-weight: 600;
        }
        .comp-tag-old {
            color: #94A3B8;
        }

        /* 板块 10: 行业资讯 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .news-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-float);
        }
        .news-img-wrap {
            height: 180px;
            overflow: hidden;
        }
        .news-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .news-card:hover .news-img-wrap img {
            transform: scale(1.05);
        }
        .news-body {
            padding: 24px;
        }
        .news-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .news-body h3 {
            font-size: 16.5px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .news-body p {
            font-size: 13.5px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 板块 11: FAQ 手风琴 */
        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-question {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-answer {
            padding: 0 24px 20px 24px;
            font-size: 14.5px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 板块 12: 安全合规背书与主转化收口 */
        .trust-badges-bar {
            display: flex;
            justify-content: center;
            gap: 48px;
            margin-bottom: 48px;
            flex-wrap: wrap;
        }
        .trust-badge-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
        }
        .trust-badge-item span {
            width: 24px;
            height: 24px;
            background: rgba(16, 185, 129, 0.15);
            color: var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
        }
        .cta-box-center {
            background: linear-gradient(135deg, var(--primary) 0%, #1E3A8A 100%);
            border-radius: var(--radius-lg);
            padding: 56px 40px;
            text-align: center;
            color: #FFFFFF;
            max-width: 960px;
            margin: 0 auto;
        }
        .cta-box-center h3 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .cta-box-center p {
            font-size: 16px;
            color: #CBD5E1;
            margin-bottom: 32px;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-form-inline {
            display: flex;
            justify-content: center;
            gap: 12px;
            max-width: 540px;
            margin: 0 auto;
        }
        .cta-form-inline input {
            flex: 1;
            padding: 14px 20px;
            border-radius: var(--radius-sm);
            border: none;
            outline: none;
            font-size: 15px;
        }
        .cta-form-inline button {
            background: var(--accent);
            color: #FFFFFF;
            border: none;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: var(--transition);
        }
        .cta-form-inline button:hover {
            background: var(--accent-hover);
        }

        /* 页脚 */
        footer {
            background: var(--primary-dark);
            color: #94A3B8;
            padding: 64px 0 32px;
            border-top: 1px solid var(--border-dark);
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 48px;
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
            display: inline-block;
        }
        .footer-col h5 {
            color: #FFFFFF;
            font-size: 15px;
            margin-bottom: 20px;
            font-weight: 600;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 12px;
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            padding-top: 32px;
            border-top: 1px solid var(--border-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
        }

        /* 移动端常驻悬浮条 */
        .mobile-bottom-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: #FFFFFF;
            border-top: 1px solid var(--border-light);
            padding: 10px 16px;
            z-index: 999;
            box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.08);
        }
        .mobile-bar-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        .mobile-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 10px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            text-align: center;
        }
        .mobile-btn-phone {
            background: #F1F5F9;
            color: var(--primary);
            border: 1px solid var(--border-light);
        }
        .mobile-btn-demo {
            background: var(--accent);
            color: #FFFFFF;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .hero-grid, .system-arch-grid, .dark-case-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .matrix-6-grid, .suite-3-grid, .news-grid, .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-chain, .kpi-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .top-bar {
                display: none;
            }
            .nav-links {
                display: none;
            }
            .matrix-6-grid, .suite-3-grid, .news-grid, .testimonial-grid, .process-chain, .kpi-row {
                grid-template-columns: 1fr;
            }
            .hero-content h1 {
                font-size: 32px;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
            .cta-form-inline {
                flex-direction: column;
            }
            .mobile-bottom-bar {
                display: block;
            }
            body {
                padding-bottom: 60px;
            }
        }