/* roulang page: index */
:root {
            --primary: #185BFF;
            --primary-gradient: linear-gradient(135deg, #185BFF 0%, #00D2B4 100%);
            --secondary: #00D2B4;
            --accent: #FF6B35;
            --dark-navy: #0B132B;
            --dark-card: #111C44;
            --dark-card-border: rgba(24, 91, 255, 0.25);
            --bg-light: #F8FAFC;
            --bg-white: #FFFFFF;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --border-light: #E2E8F0;
            --radius-lg: 20px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-subtle: 0 10px 30px -5px rgba(24, 91, 255, 0.08);
            --shadow-hover: 0 20px 40px -5px rgba(24, 91, 255, 0.16);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
            padding-bottom: 70px;
        }

        @media (min-width: 992px) {
            body { padding-bottom: 0; }
        }

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

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

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 统一标题与板块头 */
        .section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 50px;
        }

        .section-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(24, 91, 255, 0.1);
            color: var(--primary);
            font-size: 0.875rem;
            font-weight: 600;
            border-radius: 30px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--dark-navy);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 按钮与徽章 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            outline: none;
        }

        .btn-primary {
            background: var(--primary-gradient);
            color: #fff;
            box-shadow: 0 8px 20px rgba(24, 91, 255, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(24, 91, 255, 0.35);
            color: #fff;
        }

        .btn-secondary {
            background: #fff;
            color: var(--dark-navy);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
        }

        .btn-secondary:hover {
            background: #F1F5F9;
            border-color: #CBD5E1;
            transform: translateY(-2px);
        }

        .badge-live {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background: rgba(0, 210, 180, 0.15);
            color: #00A38D;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .badge-live::before {
            content: '';
            width: 8px;
            height: 8px;
            background: #00D2B4;
            border-radius: 50%;
            box-shadow: 0 0 8px #00D2B4;
        }

        /* 顶部双行导航系统 */
        .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-light);
        }

        .top-trust-bar {
            background: var(--dark-navy);
            color: #94A3B8;
            font-size: 0.8rem;
            padding: 6px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .main-navbar {
            padding: 14px 0;
        }

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

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--dark-navy);
            letter-spacing: -0.5px;
        }

        .brand-logo i {
            font-size: 1.8rem;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-links {
            display: none;
            gap: 28px;
            list-style: none;
        }

        .nav-link {
            font-weight: 600;
            color: #475569;
            font-size: 0.95rem;
            position: relative;
            padding: 4px 0;
        }

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

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* Section 1: Hero 首屏（有机柔光主视觉） */
        .hero-section {
            position: relative;
            padding: 80px 0 100px;
            background: radial-gradient(circle at 80% 20%, rgba(0, 210, 180, 0.12) 0%, rgba(24, 91, 255, 0.05) 50%, rgba(248, 250, 252, 1) 100%);
            overflow: hidden;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            align-items: center;
        }

        @media (min-width: 992px) {
            .hero-grid { grid-template-columns: 1.1fr 0.9fr; }
        }

        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--dark-navy);
            margin-bottom: 20px;
        }

        .hero-content h1 span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-content p {
            font-size: 1.15rem;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.75;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 40px;
        }

        .hero-specs {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
        }

        .hero-spec-item strong {
            display: block;
            font-size: 1.4rem;
            color: var(--dark-navy);
            font-weight: 800;
        }

        .hero-spec-item span {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .hero-visual-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-hover);
            border: 1px solid rgba(24, 91, 255, 0.1);
            position: relative;
        }

        .schedule-dashboard-preview {
            background: var(--dark-navy);
            border-radius: var(--radius-md);
            padding: 20px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .dashboard-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 12px;
            margin-bottom: 16px;
        }

        .match-row-item {
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-sm);
            padding: 12px;
            margin-bottom: 10px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            border-left: 3px solid var(--secondary);
        }

        .floating-status-pill {
            position: absolute;
            bottom: -15px;
            right: 20px;
            background: #fff;
            padding: 10px 18px;
            border-radius: 30px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--dark-navy);
            border: 1px solid var(--border-light);
        }

        /* Section 2: 合集目录与产品架构 */
        .section-architecture {
            padding: 90px 0;
            background: #FFFFFF;
        }

        .arch-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 28px;
        }

        .arch-card {
            background: var(--bg-light);
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .arch-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-subtle);
            border-color: var(--primary);
        }

        .arch-card .icon-box {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: rgba(24, 91, 255, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

        .arch-card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
            color: var(--dark-navy);
        }

        .arch-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Section 3: 核心卖点三连 */
        .section-selling-points {
            padding: 90px 0;
            background: #F1F5F9;
        }

        .points-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .point-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            border-top: 4px solid var(--primary);
            box-shadow: var(--shadow-subtle);
            transition: var(--transition);
        }

        .point-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .point-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.3;
            margin-bottom: 10px;
        }

        .point-card h3 {
            font-size: 1.25rem;
            color: var(--dark-navy);
            margin-bottom: 14px;
        }

        .point-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
        }

        /* Section 4: 场景演示区 (深色对比) */
        .section-demo {
            padding: 100px 0;
            background: var(--dark-navy);
            color: #FFFFFF;
        }

        .demo-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            align-items: center;
        }

        @media (min-width: 992px) {
            .demo-layout { grid-template-columns: 1fr 1fr; }
        }

        .demo-info h2 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 20px;
        }

        .demo-step-list {
            margin-top: 30px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .demo-step {
            display: flex;
            gap: 16px;
            background: rgba(255, 255, 255, 0.05);
            padding: 16px 20px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .demo-step-icon {
            font-size: 1.2rem;
            color: var(--secondary);
            margin-top: 2px;
        }

        .demo-image-box {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow: 0 20px 50px rgba(0,0,0,0.5);
        }

        .demo-image-box img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }

        /* Section 5: 对比差异看板 (传统 vs 智能赛程软件) */
        .section-comparison {
            padding: 90px 0;
            background: #FFFFFF;
        }

        .comparison-table-wrapper {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
            overflow-x: auto;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        .comparison-table th, .comparison-table td {
            padding: 20px 24px;
            border-bottom: 1px solid var(--border-light);
        }

        .comparison-table th {
            background: #F8FAFC;
            font-weight: 700;
            font-size: 1rem;
            color: var(--dark-navy);
        }

        .comparison-table tr:last-child td {
            border-bottom: none;
        }

        .col-highlight {
            background: rgba(24, 91, 255, 0.03);
            font-weight: 600;
            color: var(--primary);
        }

        /* Section 6: 关键数据与性能指标条 */
        .section-metrics {
            padding: 60px 0;
            background: var(--primary-gradient);
            color: #FFFFFF;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            text-align: center;
        }

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

        .metric-item strong {
            display: block;
            font-size: 2.8rem;
            font-weight: 900;
            margin-bottom: 6px;
            font-family: Arial, sans-serif;
        }

        .metric-item span {
            font-size: 0.95rem;
            opacity: 0.9;
        }

        /* Section 7: 套餐与功能矩阵 */
        .section-pricing-matrix {
            padding: 90px 0;
            background: #F8FAFC;
        }

        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .matrix-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .matrix-card.featured {
            border: 2px solid var(--primary);
            box-shadow: var(--shadow-hover);
        }

        .featured-tag {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 20px;
        }

        .matrix-header {
            margin-bottom: 24px;
            text-align: center;
        }

        .matrix-header h3 {
            font-size: 1.4rem;
            color: var(--dark-navy);
            margin-bottom: 8px;
        }

        .matrix-price {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
        }

        .matrix-features {
            list-style: none;
            margin-bottom: 30px;
            flex-grow: 1;
        }

        .matrix-features li {
            padding: 10px 0;
            font-size: 0.95rem;
            color: var(--text-muted);
            border-bottom: 1px dashed var(--border-light);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .matrix-features li i {
            color: var(--secondary);
        }

        /* Section 8: 相关推荐与特色场景 */
        .section-features-list {
            padding: 90px 0;
            background: #FFFFFF;
        }

        .feature-item-row {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 60px;
        }

        .feature-item-row:last-child {
            margin-bottom: 0;
        }

        @media (min-width: 992px) {
            .feature-item-row { grid-template-columns: 1fr 1fr; }
            .feature-item-row.reverse { direction: rtl; }
            .feature-item-row.reverse .feature-item-text { direction: ltr; }
        }

        .feature-item-text h3 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--dark-navy);
            margin-bottom: 16px;
        }

        .feature-item-text p {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .feature-item-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-subtle);
            border: 1px solid var(--border-light);
        }

        .feature-item-img img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            transition: var(--transition);
        }

        .feature-item-img:hover img {
            transform: scale(1.03);
        }

        /* Section 9: 资讯与赛事实践证据 */
        .section-insights {
            padding: 90px 0;
            background: #F8FAFC;
        }

        .insights-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .insight-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
            display: flex;
            flex-direction: column;
        }

        .insight-thumb {
            height: 190px;
            overflow: hidden;
        }

        .insight-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .insight-body {
            padding: 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .insight-body h4 {
            font-size: 1.15rem;
            color: var(--dark-navy);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .insight-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .insight-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* Section 10: 专题索引与集成能力 */
        .section-integration {
            padding: 80px 0;
            background: #FFFFFF;
        }

        .integration-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .tag-pill {
            background: #F1F5F9;
            color: #334155;
            padding: 10px 22px;
            border-radius: 30px;
            font-size: 0.95rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid var(--border-light);
        }

        .tag-pill:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* Section 11: 用户口碑与评价 */
        .section-testimonials {
            padding: 90px 0;
            background: #F8FAFC;
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 28px;
        }

        .testimonial-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 30px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
        }

        .testi-stars {
            color: #FFB800;
            margin-bottom: 16px;
            font-size: 0.9rem;
        }

        .testi-text {
            font-size: 0.95rem;
            color: var(--text-main);
            line-height: 1.6;
            margin-bottom: 20px;
        }

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

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

        .author-meta strong {
            display: block;
            font-size: 0.95rem;
            color: var(--dark-navy);
        }

        .author-meta span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Section 12: 异议拆解 FAQ */
        .section-faq {
            padding: 90px 0;
            background: #FFFFFF;
        }

        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            background: #FFFFFF;
        }

        .faq-question {
            padding: 20px 24px;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--dark-navy);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
        }

        .faq-question i {
            transition: transform 0.3s ease;
            color: var(--primary);
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            padding-bottom: 20px;
            max-height: 300px;
        }

        /* Section 13: 交付与安全保障条 */
        .section-security-trust {
            padding: 50px 0;
            background: #F1F5F9;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .security-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

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

        .sec-box {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .sec-box i {
            font-size: 1.8rem;
            color: var(--primary);
        }

        .sec-box div strong {
            display: block;
            font-size: 0.95rem;
            color: var(--dark-navy);
        }

        .sec-box div span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Section 14: 底部收口转化行动 (CTA) */
        .section-cta {
            padding: 100px 0;
            background: linear-gradient(135deg, #0B132B 0%, #111C44 100%);
            color: #FFFFFF;
            text-align: center;
        }

        .cta-content-box {
            max-width: 750px;
            margin: 0 auto;
        }

        .cta-content-box h2 {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .cta-content-box p {
            font-size: 1.1rem;
            color: #94A3B8;
            margin-bottom: 36px;
        }

        /* 页脚系统 */
        .site-footer {
            background: #060B1A;
            color: #64748B;
            padding: 60px 0 30px;
            font-size: 0.9rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        @media (min-width: 768px) {
            .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
        }

        .footer-col h4 {
            color: #FFFFFF;
            font-size: 1.05rem;
            margin-bottom: 16px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 24px;
            text-align: center;
            font-size: 0.8rem;
        }

        /* 移动端固定底部悬浮条 */
        .mobile-fixed-bar {
            display: flex;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: #FFFFFF;
            padding: 10px 16px;
            box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border-light);
        }

        @media (min-width: 992px) {
            .mobile-fixed-bar { display: none; }
            .nav-links { display: flex; }
        }