/* roulang page: index */
:root {
            --bg-base: #F8F9FA;
            --bg-card: #FFFFFF;
            --bg-dark: #0F172A;
            --bg-dark-card: #1E293B;
            --text-main: #0F172A;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --primary: #0F172A;
            --accent: #10B981;
            --accent-blue: #0EA5E9;
            --border-color: #E2E8F0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
        }

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

        body {
            font-family: var(--font-main);
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.2s ease;
        }

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

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

        /* 统一导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--accent);
            font-size: 22px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
        }
        .nav-link:hover, .nav-link.active {
            color: var(--text-main);
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* 按钮组件 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #ffffff;
            box-shadow: 0 2px 4px rgba(15, 23, 42, 0.15);
        }
        .btn-primary:hover {
            background-color: #1e293b;
            box-shadow: 0 4px 8px rgba(15, 23, 42, 0.25);
            transform: translateY(-1px);
        }
        .btn-accent {
            background-color: var(--accent);
            color: #ffffff;
        }
        .btn-accent:hover {
            background-color: #059669;
            transform: translateY(-1px);
        }
        .btn-outline {
            border-color: var(--border-color);
            background-color: #ffffff;
            color: var(--text-main);
        }
        .btn-outline:hover {
            border-color: var(--text-main);
            background-color: #f8fafc;
        }
        .btn-lg {
            padding: 14px 28px;
            font-size: 16px;
            border-radius: var(--radius-md);
        }

        /* 基础区块样式 */
        .section {
            padding: 80px 0;
            position: relative;
        }
        .section-alt {
            background-color: #ffffff;
        }
        .section-dark {
            background-color: var(--bg-dark);
            color: #ffffff;
        }
        .section-header {
            max-width: 760px;
            margin: 0 auto 50px;
            text-align: center;
        }
        .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--accent);
            margin-bottom: 12px;
            padding: 4px 12px;
            background: rgba(16, 185, 129, 0.1);
            border-radius: 20px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .section-dark .section-desc {
            color: var(--text-light);
        }

        /* Hero 区块 (落地页强转化首屏) */
        .hero-section {
            padding: 80px 0 60px;
            background: linear-gradient(180deg, #FFFFFF 0%, #F8F9FA 100%);
            border-bottom: 1px solid var(--border-color);
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }
        .hero-title {
            font-size: 44px;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 20px;
            color: var(--text-main);
        }
        .hero-intro {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-muted);
            margin-bottom: 28px;
        }
        .hero-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-bottom: 32px;
        }
        .hero-feature-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
        }
        .hero-feature-item i {
            color: var(--accent);
        }
        .hero-action-group {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 28px;
        }
        .hero-trust-bar {
            display: flex;
            align-items: center;
            gap: 20px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-muted);
        }
        .hero-trust-bar span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .hero-trust-bar i {
            color: var(--accent);
        }
        .hero-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
        }
        .hero-visual img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        .hero-badge-float {
            position: absolute;
            bottom: 20px;
            left: 20px;
            right: 20px;
            background: rgba(15, 23, 42, 0.85);
            backdrop-filter: blur(8px);
            color: #ffffff;
            padding: 14px 20px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
        }

        /* 倒计时 / 限时权益条 */
        .countdown-banner {
            background: #0F172A;
            color: #ffffff;
            padding: 20px 0;
            border-bottom: 1px solid #334155;
        }
        .countdown-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .countdown-info {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .countdown-pill {
            background: #EF4444;
            color: #ffffff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 4px;
            text-transform: uppercase;
        }
        .countdown-timer {
            display: flex;
            align-items: center;
            gap: 8px;
            font-family: monospace;
            font-size: 18px;
            font-weight: 700;
        }
        .timer-box {
            background: #1E293B;
            padding: 4px 8px;
            border-radius: 4px;
            border: 1px solid #334155;
        }

        /* 卖点三连 */
        .trio-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .trio-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }
        .trio-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .trio-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(16, 185, 129, 0.1);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
        }
        .trio-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .trio-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 权益与礼包卡片 */
        .benefit-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .benefit-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            position: relative;
            overflow: hidden;
        }
        .benefit-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--accent);
        }
        .benefit-tag {
            font-size: 11px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 8px;
            text-transform: uppercase;
        }
        .benefit-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .benefit-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 玩法步骤 / 实施流程 */
        .steps-wrapper {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .step-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            position: relative;
        }
        .step-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            margin: 0 auto 16px;
        }
        .step-item h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 场景演示 / 行业矩阵 */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scene-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .scene-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .scene-body {
            padding: 20px;
        }
        .scene-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .scene-tag {
            font-size: 12px;
            padding: 2px 8px;
            background: #F1F5F9;
            color: var(--text-muted);
            border-radius: 4px;
        }
        .scene-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 对比差异 (我们 vs 传统) */
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            background: #ffffff;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }
        .compare-table th, .compare-table td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
        }
        .compare-table th {
            background: #F8FAFC;
            font-weight: 700;
            color: var(--text-main);
        }
        .compare-highlight {
            background: rgba(16, 185, 129, 0.04);
            color: var(--accent);
            font-weight: 600;
        }

        /* 裂变排行榜 / 赋能排行 */
        .rank-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: center;
        }
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 18px;
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
        }
        .rank-badge {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: #E2E8F0;
            color: var(--text-main);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            margin-right: 12px;
        }
        .rank-badge.top-1 { background: #F59E0B; color: #ffffff; }
        .rank-badge.top-2 { background: #94A3B8; color: #ffffff; }
        .rank-badge.top-3 { background: #B45309; color: #ffffff; }

        /* 审计与安全 */
        .audit-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .audit-item {
            background: var(--bg-dark-card);
            border: 1px solid #334155;
            border-radius: var(--radius-md);
            padding: 24px;
        }
        .audit-item h4 {
            font-size: 16px;
            color: #ffffff;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .audit-item h4 i {
            color: var(--accent);
        }
        .audit-item p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* 资讯证据动态 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .news-meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .news-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .news-summary {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        /* 社会认同与口碑 */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .review-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }
        .review-stars {
            color: #F59E0B;
            font-size: 13px;
            margin-bottom: 12px;
        }
        .review-text {
            font-size: 14px;
            color: var(--text-main);
            line-height: 1.7;
            margin-bottom: 18px;
        }
        .reviewer-info {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .reviewer-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #E2E8F0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--text-main);
            font-size: 14px;
        }
        .reviewer-meta h5 {
            font-size: 14px;
            font-weight: 700;
        }
        .reviewer-meta span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 误区澄清 */
        .misconception-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .misconception-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
        }
        .misconception-card .wrong {
            color: #EF4444;
            font-weight: 700;
            font-size: 14px;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .misconception-card .right {
            color: var(--text-main);
            font-size: 13px;
            line-height: 1.6;
        }

        /* 保障图标条 */
        .guarantee-bar {
            background: #F1F5F9;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 30px 0;
        }
        .guarantee-flex {
            display: flex;
            align-items: center;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 24px;
        }
        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .guarantee-item i {
            font-size: 24px;
            color: var(--accent);
        }
        .guarantee-item h5 {
            font-size: 14px;
            font-weight: 700;
        }
        .guarantee-item p {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 报名预约与双向收口 */
        .form-section {
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 48px;
            box-shadow: var(--shadow-md);
        }
        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .form-control {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-size: 14px;
            outline: none;
            transition: border-color 0.2s;
        }
        .form-control:focus {
            border-color: var(--accent);
        }

        /* 底部固定转化条 */
        .sticky-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(8px);
            color: #ffffff;
            padding: 14px 0;
            z-index: 999;
            border-top: 1px solid #334155;
            box-shadow: 0 -4px 12px rgba(0,0,0,0.15);
        }
        .sticky-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .sticky-cta-info {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .sticky-cta-title {
            font-size: 15px;
            font-weight: 700;
        }
        .sticky-cta-desc {
            font-size: 13px;
            color: var(--text-light);
        }

        /* 统一页脚 */
        .site-footer {
            background: var(--bg-dark);
            color: #94A3B8;
            padding: 70px 0 100px;
            border-top: 1px solid #1E293B;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 18px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-logo i {
            color: var(--accent);
        }
        .footer-desc {
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 340px;
        }
        .footer-title {
            color: #ffffff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            padding-top: 24px;
            border-top: 1px solid #1E293B;
            text-align: center;
            font-size: 13px;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .hero-grid { grid-template-columns: 1fr; gap: 36px; }
            .trio-grid, .scene-grid, .audit-grid, .news-grid, .review-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-wrapper, .benefit-grid { grid-template-columns: repeat(2, 1fr); }
            .rank-grid, .form-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .main-nav { display: none; }
            .section { padding: 50px 0; }
            .hero-title { font-size: 32px; }
            .trio-grid, .scene-grid, .audit-grid, .news-grid, .review-grid, .steps-wrapper, .benefit-grid, .misconception-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .hero-features { grid-template-columns: 1fr; }
            .sticky-cta-desc { display: none; }
            .countdown-inner { flex-direction: column; align-items: flex-start; }
        }