/* roulang page: index */
:root {
      --primary: #0a84ff;
      --primary-hover: #0070e0;
      --secondary: #00d2b4;
      --dark-bg: #070c14;
      --dark-surface: #0e1626;
      --dark-card: #141f33;
      --dark-border: #1e2d47;
      --text-main: #f0f4f8;
      --text-muted: #8da2c0;
      --accent: #ff9f0a;
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 14px;
      --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.4);
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      background-color: var(--dark-bg);
      color: var(--text-main);
      font-family: var(--font-stack);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      min-width: 320px;
    }

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

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

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

    /* 顶部导航 */
    .top-bar {
      background: #04070c;
      border-bottom: 1px solid var(--dark-border);
      font-size: 13px;
      color: var(--text-muted);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .status-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #30d158;
      margin-right: 6px;
      box-shadow: 0 0 8px #30d158;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 99;
      background: rgba(10, 16, 26, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--dark-border);
    }
    .nav-wrap {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 70px;
    }
    .brand-logo {
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 10px;
      letter-spacing: 0.5px;
    }
    .brand-logo span {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .main-nav {
      display: flex;
      gap: 24px;
      align-items: center;
    }
    .main-nav a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
    }
    .main-nav a:hover,
    .main-nav a.active {
      color: #fff;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: var(--radius-md);
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
    }
    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 4px 14px rgba(10, 132, 255, 0.35);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 6px 20px rgba(10, 132, 255, 0.5);
    }
    .btn-outline {
      border-color: var(--dark-border);
      background: rgba(255, 255, 255, 0.04);
      color: var(--text-main);
    }
    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: var(--text-muted);
    }

    /* 板块通用 */
    section {
      padding: 80px 0;
      position: relative;
    }
    .sec-alt {
      background: var(--dark-surface);
      border-top: 1px solid var(--dark-border);
      border-bottom: 1px solid var(--dark-border);
    }
    .sec-header {
      margin-bottom: 48px;
    }
    .sec-badge {
      display: inline-block;
      padding: 4px 10px;
      background: rgba(10, 132, 255, 0.15);
      border: 1px solid rgba(10, 132, 255, 0.3);
      color: var(--primary);
      border-radius: var(--radius-sm);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 1px;
      margin-bottom: 12px;
    }
    .sec-title {
      font-size: 32px;
      line-height: 1.3;
      font-weight: 700;
      color: #fff;
      margin-bottom: 14px;
    }
    .sec-desc {
      color: var(--text-muted);
      font-size: 16px;
      max-width: 820px;
      line-height: 1.7;
    }

    /* 1. Hero 杂志分栏 */
    .hero-section {
      padding: 70px 0 90px;
      background: radial-gradient(circle at 80% 20%, rgba(10, 132, 255, 0.12) 0%, transparent 60%),
                  radial-gradient(circle at 20% 80%, rgba(0, 210, 180, 0.08) 0%, transparent 50%),
                  var(--dark-bg);
      border-bottom: 1px solid var(--dark-border);
    }
    .hero-magazine-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 42px;
      line-height: 1.25;
      font-weight: 800;
      margin-bottom: 20px;
      color: #ffffff;
      letter-spacing: -0.5px;
    }
    .hero-p {
      font-size: 17px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 30px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      margin-bottom: 36px;
    }
    .hero-stats-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      border-top: 1px solid var(--dark-border);
      padding-top: 24px;
    }
    .stat-box strong {
      font-size: 24px;
      font-weight: 700;
      color: #fff;
      display: block;
    }
    .stat-box span {
      font-size: 13px;
      color: var(--text-muted);
    }
    .hero-featured-card {
      background: var(--dark-card);
      border: 1px solid var(--dark-border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
    }
    .hero-media-wrap {
      position: relative;
      overflow: hidden;
      max-height: 280px;
    }
    .hero-media-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .hero-tag {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(10, 16, 26, 0.85);
      border: 1px solid rgba(255, 255, 255, 0.2);
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      font-size: 12px;
      color: var(--secondary);
    }
    .hero-card-content {
      padding: 24px;
    }
    .hero-card-title {
      font-size: 18px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 10px;
    }
    .hero-card-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 2. 安全主张 */
    .claim-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .claim-card {
      background: var(--dark-card);
      border: 1px solid var(--dark-border);
      padding: 28px;
      border-radius: var(--radius-md);
      transition: transform 0.2s ease, border-color 0.2s ease;
    }
    .claim-card:hover {
      transform: translateY(-4px);
      border-color: var(--primary);
    }
    .claim-code {
      font-family: monospace;
      font-size: 13px;
      color: var(--secondary);
      margin-bottom: 8px;
      display: block;
    }
    .claim-title {
      font-size: 19px;
      color: #fff;
      margin-bottom: 12px;
      font-weight: 600;
    }
    .claim-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 3. 检查项 */
    .checklist-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .checklist-item {
      background: var(--dark-card);
      border: 1px solid var(--dark-border);
      border-radius: var(--radius-md);
      padding: 22px 26px;
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }
    .check-icon {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: rgba(0, 210, 180, 0.15);
      border: 1px solid var(--secondary);
      color: var(--secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      flex-shrink: 0;
      margin-top: 2px;
    }
    .check-content h4 {
      font-size: 17px;
      color: #fff;
      margin-bottom: 6px;
    }
    .check-content p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 4. 合规徽章 */
    .badges-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .badge-card {
      background: var(--dark-surface);
      border: 1px dashed var(--dark-border);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      text-align: center;
    }
    .badge-icon-box {
      width: 48px;
      height: 48px;
      margin: 0 auto 14px;
      border-radius: 50%;
      background: rgba(10, 132, 255, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 700;
      font-size: 16px;
    }
    .badge-name {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 8px;
    }
    .badge-sub {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 5. 边界说明 */
    .boundary-banner {
      background: linear-gradient(135deg, rgba(20, 31, 51, 0.9), rgba(14, 22, 38, 0.9));
      border: 1px solid var(--dark-border);
      border-left: 4px solid var(--accent);
      border-radius: var(--radius-md);
      padding: 30px;
    }
    .boundary-inner {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
    .boundary-col h4 {
      font-size: 17px;
      color: #fff;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .boundary-col ul {
      list-style: none;
    }
    .boundary-col li {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 10px;
      padding-left: 18px;
      position: relative;
      line-height: 1.6;
    }
    .boundary-col li::before {
      content: "•";
      position: absolute;
      left: 0;
      color: var(--accent);
      font-size: 18px;
      line-height: 14px;
    }

    /* 6. 资讯列表 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: var(--dark-card);
      border: 1px solid var(--dark-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-img {
      height: 180px;
      overflow: hidden;
    }
    .news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .news-card:hover .news-img img {
      transform: scale(1.04);
    }
    .news-body {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 12px;
      color: var(--secondary);
      margin-bottom: 8px;
      display: block;
    }
    .news-title {
      font-size: 17px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 10px;
      line-height: 1.45;
    }
    .news-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
      flex: 1;
    }

    /* 7. 指标看板 */
    .dashboard-preview {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      align-items: stretch;
    }
    .dash-main-card {
      background: var(--dark-card);
      border: 1px solid var(--dark-border);
      border-radius: var(--radius-md);
      padding: 28px;
      position: relative;
    }
    .dash-metrics-group {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 24px;
    }
    .dash-m-box {
      background: var(--dark-surface);
      border: 1px solid var(--dark-border);
      padding: 16px;
      border-radius: var(--radius-sm);
    }
    .dash-m-box .val {
      font-size: 26px;
      font-weight: 700;
      color: var(--primary);
    }
    .dash-m-box .lbl {
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 4px;
    }
    .dash-side-card {
      background: var(--dark-surface);
      border: 1px solid var(--dark-border);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .dash-side-card h4 {
      font-size: 17px;
      color: #fff;
      margin-bottom: 14px;
    }
    .log-stream {
      font-family: monospace;
      font-size: 12px;
      color: var(--text-muted);
      background: #05080f;
      padding: 14px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--dark-border);
      line-height: 1.7;
    }

    /* 8. 服务矩阵 */
    .matrix-table-wrap {
      overflow-x: auto;
      border: 1px solid var(--dark-border);
      border-radius: var(--radius-md);
      background: var(--dark-card);
    }
    .matrix-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .matrix-table th,
    .matrix-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--dark-border);
    }
    .matrix-table th {
      background: var(--dark-surface);
      color: #fff;
      font-weight: 600;
    }
    .matrix-table tr:last-child td {
      border-bottom: none;
    }
    .matrix-table tr:hover td {
      background: rgba(255, 255, 255, 0.02);
    }
    .matrix-tag {
      display: inline-block;
      padding: 2px 8px;
      border-radius: var(--radius-sm);
      font-size: 12px;
      background: rgba(0, 210, 180, 0.12);
      color: var(--secondary);
    }

    /* 9. 结果对比 */
    .compare-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }
    .comp-col {
      padding: 30px;
      border-radius: var(--radius-md);
      border: 1px solid var(--dark-border);
    }
    .comp-traditional {
      background: rgba(20, 25, 35, 0.6);
      border-color: rgba(255, 255, 255, 0.08);
    }
    .comp-twin {
      background: rgba(10, 132, 255, 0.05);
      border-color: var(--primary);
    }
    .comp-col h3 {
      font-size: 20px;
      margin-bottom: 18px;
      color: #fff;
    }
    .comp-list {
      list-style: none;
    }
    .comp-list li {
      font-size: 14px;
      margin-bottom: 14px;
      line-height: 1.6;
      color: var(--text-muted);
      position: relative;
      padding-left: 24px;
    }
    .comp-traditional li::before {
      content: "×";
      position: absolute;
      left: 0;
      color: #ff453a;
      font-size: 18px;
      line-height: 18px;
    }
    .comp-twin li::before {
      content: "✓";
      position: absolute;
      left: 0;
      color: var(--secondary);
      font-size: 16px;
      line-height: 18px;
    }

    /* 10. 里程碑 */
    .timeline-wrap {
      position: relative;
      margin-top: 20px;
    }
    .timeline-wrap::before {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      left: 20px;
      width: 2px;
      background: var(--dark-border);
    }
    .timeline-item {
      position: relative;
      padding-left: 56px;
      margin-bottom: 36px;
    }
    .timeline-item:last-child {
      margin-bottom: 0;
    }
    .timeline-node {
      position: absolute;
      left: 13px;
      top: 4px;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 10px var(--primary);
    }
    .timeline-head {
      font-size: 17px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 6px;
    }
    .timeline-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 11. 信任背书 */
    .endorse-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .endorse-card {
      background: var(--dark-card);
      border: 1px solid var(--dark-border);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
    }
    .endorse-val {
      font-size: 32px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 6px;
      background: linear-gradient(180deg, #fff, var(--text-muted));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .endorse-name {
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .endorse-detail {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 12. 快速解答与转化表单 */
    .faq-form-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: flex-start;
    }
    .faq-accordion {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: var(--dark-card);
      border: 1px solid var(--dark-border);
      border-radius: var(--radius-md);
      padding: 20px 24px;
    }
    .faq-q {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 10px;
    }
    .faq-a {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 转化表单 */
    .form-card {
      background: var(--dark-card);
      border: 1px solid var(--dark-border);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--shadow-soft);
    }
    .form-card h3 {
      font-size: 20px;
      color: #fff;
      margin-bottom: 8px;
    }
    .form-card p {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 24px;
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 500;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      background: #080d16;
      border: 1px solid var(--dark-border);
      border-radius: var(--radius-sm);
      padding: 12px 14px;
      color: #fff;
      font-size: 14px;
      outline: none;
      transition: border-color 0.2s ease;
    }
    .form-control:focus {
      border-color: var(--primary);
    }
    .form-submit-btn {
      width: 100%;
      margin-top: 10px;
    }

    /* 页脚 */
    .site-footer {
      background: #04070c;
      border-top: 1px solid var(--dark-border);
      padding: 60px 0 30px;
      color: var(--text-muted);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand h3 {
      font-size: 18px;
      color: #fff;
      margin-bottom: 12px;
      font-weight: 700;
    }
    .footer-brand p {
      line-height: 1.7;
      font-size: 13px;
      margin-bottom: 16px;
    }
    .footer-col h4 {
      font-size: 15px;
      color: #fff;
      margin-bottom: 16px;
      font-weight: 600;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
    }
    .footer-links a:hover {
      color: #fff;
    }
    .footer-bottom {
      border-top: 1px solid var(--dark-border);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-magazine-grid,
      .faq-form-grid,
      .dashboard-preview {
        grid-template-columns: 1fr;
      }
      .badges-row,
      .endorse-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .news-grid,
      .claim-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .main-nav {
        display: none;
      }
      .sec-title {
        font-size: 26px;
      }
      .hero-h1 {
        font-size: 30px;
      }
      .claim-grid,
      .checklist-grid,
      .news-grid,
      .compare-grid,
      .dash-metrics-group,
      .boundary-inner {
        grid-template-columns: 1fr;
      }
      .hero-stats-row {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }