/* roulang page: index */
:root {
      --primary: #00D084;
      --primary-hover: #05b473;
      --primary-light: rgba(0, 208, 132, 0.12);
      --accent-blue: #0EA5E9;
      --accent-amber: #F59E0B;
      --dark-bg: #0F172A;
      --dark-card: #1E293B;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --radius-pill: 9999px;
      --shadow-sm: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
      --shadow-hover: 0 20px 25px -5px rgba(0, 208, 132, 0.15);
      --container-max: 1240px;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-white);
      color: var(--text-body);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }

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

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

    /* 顶部服务细通栏 */
    .top-status-bar {
      background: #0B1120;
      color: #94A3B8;
      font-size: 13px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-status-bar .inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background-color: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--primary);
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 19px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }
    .brand-logo .logo-mark {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent-blue) 100%);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFF;
      font-size: 18px;
      font-weight: 900;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-body);
      position: relative;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
    }
    .nav-cta-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      background-color: var(--primary);
      color: #0F172A;
      font-weight: 700;
      font-size: 14px;
      border-radius: var(--radius-pill);
      box-shadow: 0 4px 14px rgba(0, 208, 132, 0.35);
      transition: all 0.3s ease;
    }
    .nav-cta-btn:hover {
      background-color: var(--primary-hover);
      transform: translateY(-1px);
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--text-main);
    }

    /* 通用组件 */
    .section-padding {
      padding: 85px 0;
    }
    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 52px;
    }
    .section-badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      padding: 4px 14px;
      border-radius: var(--radius-sm);
      background: var(--primary-light);
      color: #059669;
      margin-bottom: 14px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 16px;
    }
    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 1: 强转化落地页 Hero */
    .hero-banner {
      position: relative;
      background: linear-gradient(rgba(15, 23, 42, 0.88), rgba(15, 23, 42, 0.92)), url('/assets/images/199d805fefccef80.png') center/cover no-repeat;
      color: #FFF;
      padding: 90px 0 70px;
    }
    .hero-box {
      max-width: 920px;
      margin: 0 auto;
      text-align: center;
    }
    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.2);
      padding: 6px 18px;
      border-radius: var(--radius-pill);
      font-size: 13px;
      color: var(--primary);
      margin-bottom: 24px;
    }
    .hero-title {
      font-size: 42px;
      line-height: 1.28;
      font-weight: 800;
      letter-spacing: -0.5px;
      margin-bottom: 22px;
    }
    .hero-desc {
      font-size: 17px;
      line-height: 1.8;
      color: #CBD5E1;
      margin-bottom: 34px;
    }
    .hero-actions {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }
    .btn-main {
      padding: 14px 34px;
      background-color: var(--primary);
      color: #0F172A;
      font-size: 16px;
      font-weight: 700;
      border-radius: var(--radius-pill);
      box-shadow: 0 8px 24px rgba(0, 208, 132, 0.35);
      border: none;
      cursor: pointer;
    }
    .btn-main:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
    }
    .btn-outline {
      padding: 13px 30px;
      background-color: transparent;
      color: #FFF;
      border: 1px solid rgba(255, 255, 255, 0.35);
      font-size: 16px;
      font-weight: 600;
      border-radius: var(--radius-pill);
    }
    .btn-outline:hover {
      border-color: #FFF;
      background-color: rgba(255, 255, 255, 0.08);
    }
    .hero-trust-bar {
      display: flex;
      justify-content: center;
      gap: 36px;
      font-size: 13px;
      color: #94A3B8;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding-top: 24px;
      flex-wrap: wrap;
    }
    .hero-trust-bar span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 板块 2: 问题陈述区 */
    .problem-section {
      background-color: var(--bg-light);
    }
    .problem-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .problem-card {
      background: #FFF;
      border: 1px solid #E2E8F0;
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }
    .problem-label {
      font-size: 12px;
      font-weight: 700;
      color: #EF4444;
      background: #FEE2E2;
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      display: inline-block;
      margin-bottom: 16px;
    }
    .problem-card h3 {
      font-size: 19px;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .problem-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块 3: 操作演示区 */
    .demo-showcase {
      background-color: #FFF;
    }
    .demo-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .demo-media {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 16px 36px rgba(15, 23, 42, 0.12);
      border: 1px solid var(--border-color);
    }
    .demo-steps-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .step-item {
      display: flex;
      gap: 18px;
      padding: 18px;
      border-radius: var(--radius-md);
      background: var(--bg-light);
      border: 1px solid #E2E8F0;
      transition: all 0.3s ease;
    }
    .step-item:hover {
      border-color: var(--primary);
      transform: translateX(4px);
      background: #FFF;
      box-shadow: var(--shadow-sm);
    }
    .step-num {
      width: 36px;
      height: 36px;
      background: var(--primary);
      color: #0F172A;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .step-content h4 {
      font-size: 17px;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .step-content p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 4: 结果预览与专区展示 */
    .results-preview {
      background: var(--bg-light);
    }
    .preview-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .preview-card {
      background: #FFF;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .preview-thumb {
      height: 180px;
      overflow: hidden;
    }
    .preview-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .preview-card:hover .preview-thumb img {
      transform: scale(1.05);
    }
    .preview-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .preview-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--accent-blue);
      margin-bottom: 8px;
    }
    .preview-body h3 {
      font-size: 18px;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .preview-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .preview-stats {
      display: flex;
      justify-content: space-between;
      border-top: 1px solid var(--border-color);
      padding-top: 12px;
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 板块 5: 常见卡住点与误区澄清 */
    .blockers-section {
      background-color: #FFF;
    }
    .blocker-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .blocker-card {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 26px;
      background: #FAFAFA;
      position: relative;
    }
    .blocker-pair {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .blocker-flaw {
      color: #991B1B;
      font-size: 14px;
      font-weight: 600;
      background: #FEE2E2;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
    }
    .blocker-solution {
      color: #065F46;
      font-size: 14px;
      background: #D1FAE5;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      line-height: 1.5;
    }

    /* 板块 6: 核心功能矩阵六卡片 */
    .features-matrix {
      background-color: var(--bg-light);
    }
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feature-card {
      background: #FFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      transition: all 0.3s ease;
      position: relative;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }
    .feature-icon-box {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 18px;
      margin-bottom: 18px;
    }
    .feature-card h3 {
      font-size: 18px;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块 7: 深色战术理念与引擎解析 */
    .dark-engine-section {
      background: var(--dark-bg);
      color: #FFF;
    }
    .dark-engine-section .section-title {
      color: #FFF;
    }
    .dark-engine-section .section-subtitle {
      color: #94A3B8;
    }
    .engine-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .engine-card {
      background: var(--dark-card);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-lg);
      padding: 30px;
    }
    .engine-card h3 {
      font-size: 19px;
      color: var(--primary);
      margin-bottom: 14px;
    }
    .engine-card p {
      font-size: 14px;
      color: #CBD5E1;
      line-height: 1.7;
    }

    /* 板块 8: 运营指标与社区数据统计条 */
    .metrics-bar-section {
      background: linear-gradient(135deg, #022c22 0%, #0F172A 100%);
      padding: 50px 0;
      color: #FFF;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }
    .metric-item .metric-val {
      font-size: 38px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 8px;
      font-feature-settings: "tnum";
    }
    .metric-item .metric-title {
      font-size: 14px;
      color: #94A3B8;
    }

    /* 板块 9: 成功路径与新手成长图 */
    .workflow-section {
      background: #FFF;
    }
    .workflow-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .timeline-node {
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      text-align: center;
      position: relative;
    }
    .timeline-phase {
      width: 32px;
      height: 32px;
      line-height: 32px;
      margin: 0 auto 14px;
      background: var(--text-main);
      color: var(--primary);
      border-radius: 50%;
      font-weight: 800;
      font-size: 14px;
    }
    .timeline-node h4 {
      font-size: 17px;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .timeline-node p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 10: 真实战果案例墙 */
    .cases-section {
      background: var(--bg-light);
    }
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .case-card {
      background: #FFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 26px;
      display: flex;
      flex-direction: column;
    }
    .case-header {
      display: flex;
      justify-content: space-between;
      margin-bottom: 14px;
    }
    .case-author {
      font-weight: 700;
      color: var(--text-main);
      font-size: 15px;
    }
    .case-rate {
      color: var(--primary);
      font-weight: 700;
      font-size: 14px;
    }
    .case-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .case-indicator {
      background: var(--bg-light);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 11: 话题标签云矩阵 */
    .topics-cloud-section {
      background: #FFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .cloud-tags-container {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      max-width: 960px;
      margin: 0 auto;
    }
    .cloud-tag-item {
      padding: 10px 20px;
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-pill);
      font-size: 14px;
      font-weight: 600;
      color: var(--text-body);
      transition: all 0.25s ease;
    }
    .cloud-tag-item:hover {
      background: var(--primary);
      color: #0F172A;
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    /* 板块 12: 社区精选资讯流 */
    .news-stream-section {
      background: var(--bg-light);
    }
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: #FFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      display: flex;
      flex-direction: column;
    }
    .news-meta {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 12px;
    }
    .news-card h3 {
      font-size: 17px;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.45;
    }
    .news-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .news-link {
      font-size: 14px;
      font-weight: 700;
      color: var(--accent-blue);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 板块 13: 合作伙伴技术支持矩阵 */
    .partner-section {
      background: #FFF;
    }
    .partner-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
    }
    .partner-item {
      height: 72px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #94A3B8;
      font-size: 13px;
      background: #F8FAFC;
    }

    /* 板块 14: 合规与运行承诺条 */
    .security-bar-section {
      background: #F1F5F9;
      padding: 40px 0;
      border-top: 1px solid var(--border-color);
    }
    .security-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .security-item {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .security-icon {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: #FFF;
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      color: var(--primary);
      flex-shrink: 0;
    }
    .security-text h4 {
      font-size: 15px;
      color: var(--text-main);
      margin-bottom: 2px;
    }
    .security-text p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 15: 终极转化下载区 */
    .final-cta-section {
      background: #FFF;
      padding-bottom: 90px;
    }
    .cta-container-card {
      background: linear-gradient(135deg, #064E3B 0%, #0F172A 100%);
      border-radius: 24px;
      padding: 60px 40px;
      text-align: center;
      color: #FFF;
      box-shadow: 0 20px 40px -10px rgba(6, 78, 59, 0.4);
      position: relative;
      overflow: hidden;
    }
    .cta-container-card h2 {
      font-size: 34px;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .cta-container-card p {
      font-size: 16px;
      color: #A7F3D0;
      max-width: 680px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }
    .cta-actions {
      display: flex;
      justify-content: center;
      gap: 18px;
      flex-wrap: wrap;
    }

    /* 页脚 */
    .site-footer {
      background: #0B1120;
      color: #94A3B8;
      font-size: 14px;
      padding: 60px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-layout {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand h3 {
      font-size: 18px;
      color: #FFF;
      margin-bottom: 14px;
    }
    .footer-brand p {
      line-height: 1.7;
      margin-bottom: 16px;
      max-width: 340px;
    }
    .footer-col h4 {
      font-size: 15px;
      color: #FFF;
      margin-bottom: 18px;
      font-weight: 700;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .footer-contact p {
      line-height: 1.8;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .problem-grid,
      .preview-grid,
      .features-grid,
      .engine-grid,
      .cases-grid,
      .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .partner-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .workflow-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-layout {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-status-bar {
        display: none;
      }
      .nav-links,
      .nav-cta-btn {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .mobile-drawer {
        position: fixed;
        top: 74px;
        left: 0;
        right: 0;
        background: #FFF;
        padding: 24px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        display: none;
        flex-direction: column;
        gap: 16px;
        border-bottom: 1px solid var(--border-color);
      }
      .mobile-drawer.active {
        display: flex;
      }
      .demo-layout {
        grid-template-columns: 1fr;
      }
      .problem-grid,
      .preview-grid,
      .features-grid,
      .engine-grid,
      .cases-grid,
      .news-grid,
      .blocker-grid {
        grid-template-columns: 1fr;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-timeline {
        grid-template-columns: 1fr;
      }
      .partner-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .security-grid {
        grid-template-columns: 1fr;
      }
      .footer-layout {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 30px;
      }
      .section-title {
        font-size: 26px;
      }
      .cta-container-card h2 {
        font-size: 26px;
      }
    }