/* roulang page: index */
:root {
            --bg-base: #0B1120;
            --bg-card: rgba(15, 23, 42, 0.75);
            --bg-card-hover: rgba(30, 41, 59, 0.85);
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --brand-primary: #0284C7;
            --brand-light: #38BDF8;
            --brand-accent: #10B981;
            --border-glass: rgba(56, 189, 248, 0.2);
            --border-glass-hover: rgba(56, 189, 248, 0.6);
            --glow-shadow: 0 0 25px rgba(56, 189, 248, 0.35);
            --glow-button: 0 0 20px rgba(56, 189, 248, 0.4);
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--bg-base);
            color: var(--text-primary);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部公告条 */
        .top-bar {
            background: rgba(11, 17, 32, 0.95);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: var(--text-secondary);
            padding: 8px 0;
        }
        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .top-bar-tags {
            display: flex;
            gap: 16px;
        }
        .top-bar-tags span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .status-dot {
            width: 8px;
            height: 8px;
            background: var(--brand-accent);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 8px var(--brand-accent);
        }

        /* 主导航栏 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 17, 32, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-glass);
            transition: var(--transition-smooth);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .brand-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .brand-logo-badge {
            background: linear-gradient(135deg, #0284C7, #38BDF8);
            color: #fff;
            padding: 4px 8px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 600;
        }
        .nav-menu {
            display: flex;
            gap: 28px;
            list-style: none;
            align-items: center;
        }
        .nav-item a {
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
        }
        .nav-item a:hover {
            color: var(--brand-light);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        /* 按钮组件 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition-smooth);
            border: 1px solid transparent;
            min-height: 44px;
        }
        .btn-primary {
            background: linear-gradient(135deg, #0284C7 0%, #0369A1 100%);
            color: #fff;
            box-shadow: var(--glow-button);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, #38BDF8 0%, #0284C7 100%);
            box-shadow: 0 0 30px rgba(56, 189, 248, 0.7);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-glass);
            color: var(--brand-light);
        }
        .btn-outline:hover {
            background: rgba(56, 189, 248, 0.12);
            border-color: var(--brand-light);
            transform: translateY(-2px);
        }

        /* 通用板块规范 */
        section {
            padding: 90px 0;
            position: relative;
        }
        .section-darker {
            background: rgba(8, 13, 25, 0.7);
        }
        .section-header {
            margin-bottom: 56px;
            max-width: 780px;
        }
        .section-header.center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }
        .section-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--brand-light);
            background: rgba(56, 189, 248, 0.1);
            border: 1px solid rgba(56, 189, 248, 0.3);
            padding: 4px 12px;
            border-radius: 9999px;
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* 玻璃卡片 */
        .glass-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            transition: var(--transition-smooth);
        }
        .glass-card:hover {
            border-color: var(--border-glass-hover);
            transform: translateY(-4px);
            box-shadow: 0 12px 40px 0 rgba(2, 132, 199, 0.25);
        }

        /* 板块 1: 首屏 (Hero) */
        .hero-section {
            padding: 70px 0 100px;
            background: radial-gradient(circle at 50% 10%, rgba(2, 132, 199, 0.18) 0%, transparent 60%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }
        .hero-content h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-content h1 span {
            background: linear-gradient(135deg, #38BDF8 0%, #818CF8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 32px;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            margin-bottom: 36px;
        }
        .hero-keypoints {
            display: flex;
            gap: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
        }
        .hero-point {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .hero-point strong {
            color: var(--text-primary);
        }
        .hero-media-wrapper {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-glass);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
        }
        .hero-media-img {
            width: 100%;
            height: 480px;
            object-fit: cover;
            display: block;
        }
        .hero-floating-chip {
            position: absolute;
            bottom: 24px;
            left: 24px;
            right: 24px;
            background: rgba(11, 17, 32, 0.85);
            backdrop-filter: blur(12px);
            padding: 16px 20px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(56, 189, 248, 0.3);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* 板块 2: 痛点与困局 */
        .pain-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .pain-card {
            border-left: 3px solid #EF4444;
            padding: 28px;
            background: rgba(15, 23, 42, 0.5);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }
        .pain-card h3 {
            font-size: 19px;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .pain-card p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
        }

        /* 板块 3: 一体化产品矩阵 */
        .matrix-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .matrix-img {
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-glass);
            overflow: hidden;
            box-shadow: var(--glow-shadow);
        }
        .matrix-specs-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 18px;
            margin-top: 24px;
        }
        .matrix-specs-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .matrix-spec-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: rgba(16, 185, 129, 0.15);
            color: var(--brand-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }
        .matrix-specs-item h4 {
            font-size: 16px;
            color: #fff;
            margin-bottom: 4px;
        }
        .matrix-specs-item p {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* 板块 4: 2x3 卡片网格优势 */
        .grid-2x3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .adv-card h3 {
            font-size: 18px;
            color: #fff;
            margin-bottom: 12px;
        }
        .adv-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .adv-tag {
            color: var(--brand-light);
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 8px;
            display: block;
        }

        /* 板块 5: 3核心模块 */
        .grid-3col {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .product-module-card {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .product-module-card h3 {
            font-size: 20px;
            color: #fff;
            margin-bottom: 12px;
        }
        .product-module-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 24px;
        }

        /* 板块 6: 流程时间线 */
        .flow-step-track {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
            position: relative;
        }
        .flow-step-card {
            background: rgba(15, 23, 42, 0.6);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            position: relative;
        }
        .flow-step-num {
            font-size: 13px;
            font-weight: 700;
            color: var(--brand-light);
            margin-bottom: 8px;
            display: block;
        }
        .flow-step-card h4 {
            font-size: 15px;
            color: #fff;
            margin-bottom: 8px;
        }
        .flow-step-card p {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* 板块 7: 深底合规安全板块 */
        .sec-concept-box {
            background: radial-gradient(circle at 80% 50%, rgba(2, 132, 199, 0.25) 0%, rgba(11, 17, 32, 0.95) 70%);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-xl);
            padding: 60px 48px;
        }
        .sec-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .sec-points-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .sec-point-item {
            background: rgba(15, 23, 42, 0.65);
            padding: 20px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.05);
        }
        .sec-point-item h4 {
            color: #fff;
            font-size: 15px;
            margin-bottom: 6px;
        }
        .sec-point-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* 板块 8: 客户实录 */
        .case-split-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 36px;
            align-items: center;
        }
        .stat-result-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .stat-result-box {
            background: rgba(15, 23, 42, 0.8);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
        }
        .stat-result-box strong {
            font-size: 36px;
            color: var(--brand-light);
            display: block;
            margin-bottom: 6px;
        }
        .stat-result-box span {
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* 板块 9: 关键数据条 */
        .metrics-strip {
            background: linear-gradient(90deg, rgba(2, 132, 199, 0.1) 0%, rgba(16, 185, 129, 0.1) 100%);
            border-top: 1px solid var(--border-glass);
            border-bottom: 1px solid var(--border-glass);
            padding: 50px 0;
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .metric-unit strong {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            display: block;
            margin-bottom: 8px;
            letter-spacing: -1px;
        }
        .metric-unit span {
            font-size: 14px;
            color: var(--text-secondary);
        }

        /* 板块 10: 专家证言 */
        .testi-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testi-card {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .testi-header {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 16px;
        }
        .testi-avatar {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: linear-gradient(135deg, #0284C7, #38BDF8);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: #fff;
            font-size: 16px;
        }
        .testi-info h4 {
            font-size: 16px;
            color: #fff;
        }
        .testi-info p {
            font-size: 12px;
            color: var(--text-muted);
        }
        .testi-body {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* 板块 11: 资讯动态 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .news-card {
            overflow: hidden;
            display: flex;
            flex-direction: column;
            padding: 0;
        }
        .news-thumb {
            width: 100%;
            height: 190px;
            object-fit: cover;
        }
        .news-content {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .news-date {
            font-size: 12px;
            color: var(--brand-light);
            margin-bottom: 8px;
        }
        .news-card h3 {
            font-size: 17px;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.45;
        }
        .news-card p {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 16px;
        }

        /* 板块 12: FAQ 手风琴 */
        .faq-accordion-group {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: rgba(15, 23, 42, 0.75);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-smooth);
        }
        .faq-question {
            padding: 20px 24px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            user-select: none;
        }
        .faq-question:hover {
            color: var(--brand-light);
        }
        .faq-icon {
            font-size: 18px;
            transition: transform 0.3s ease;
            color: var(--brand-light);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease-out;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 14.5px;
            line-height: 1.75;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 20px;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        /* 板块 13: 试用转化表单 */
        .cta-box-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(2, 132, 199, 0.15) 100%);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-xl);
            padding: 60px 48px;
            box-shadow: 0 20px 50px rgba(0,0,0,0.5);
        }
        .form-input-group {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .form-control {
            background: rgba(11, 17, 32, 0.85);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: #fff;
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 14px;
            width: 100%;
            outline: none;
            transition: var(--transition-smooth);
        }
        .form-control:focus {
            border-color: var(--brand-light);
            box-shadow: 0 0 10px rgba(56, 189, 248, 0.3);
        }
        .form-disclaimer {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 10px;
        }

        /* 页脚 */
        .site-footer {
            background: #060A12;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 70px 0 30px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 50px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a:hover {
            color: var(--brand-light);
        }
        .footer-contact-item {
            margin-bottom: 8px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 移动端汉堡按钮 */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 24px;
            cursor: pointer;
            padding: 8px;
        }

        /* 响应式样式适配 */
        @media (max-width: 1024px) {
            .hero-grid, .matrix-container, .sec-grid, .case-split-grid, .cta-box-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .grid-2x3, .grid-3col, .testi-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-step-track {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #0B1120;
                flex-direction: column;
                padding: 24px;
                border-bottom: 1px solid var(--border-glass);
            }
            .nav-menu.show {
                display: flex;
            }
            .grid-2x3, .grid-3col, .testi-grid, .news-grid, .pain-layout, .stat-result-card, .metrics-grid, .flow-step-track, .sec-points-list {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .hero-content h1 {
                font-size: 30px;
            }
            .section-title {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
            .hero-media-img {
                height: 320px;
            }
        }