/* roulang page: index */
:root {
      --primary-dark: #0f172a;
      --secondary-dark: #1e293b;
      --emerald: #059669;
      --emerald-hover: #047857;
      --obsidian: #090d16;
      --bg-slate: #f8fafc;
      --bg-light: #ffffff;
      --border-color: #e2e8f0;
      --text-main: #0f172a;
      --text-muted: #334155;
      --text-sub: #64748b;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --shadow-subtle: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
      --shadow-elevated: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
      --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-slate);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition-smooth);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
    .top-notice-bar {
      background-color: var(--obsidian);
      color: #94a3b8;
      font-size: 0.8125rem;
      padding: 0.5rem 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-notice-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 0.75rem;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
    }
    .header-nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo-anchor {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 0.6rem;
    }
    .logo-badge {
      display: inline-block;
      width: 12px;
      height: 12px;
      background-color: var(--emerald);
      border-radius: 50%;
      box-shadow: 0 0 10px var(--emerald);
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 2rem;
    }
    .nav-link {
      font-weight: 500;
      font-size: 0.95rem;
      color: var(--text-muted);
    }
    .nav-link:hover, .nav-link.active {
      color: var(--emerald);
    }
    .cta-header-btn {
      background-color: var(--emerald);
      color: #ffffff;
      padding: 0.6rem 1.25rem;
      border-radius: var(--radius-sm);
      font-size: 0.875rem;
      font-weight: 600;
      display: inline-block;
    }
    .cta-header-btn:hover {
      background-color: var(--emerald-hover);
      box-shadow: 0 4px 12px rgba(5, 150, 105, 0.25);
    }
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--primary-dark);
      cursor: pointer;
    }
    .page-section {
      padding: 5rem 0;
    }
    .section-alt {
      background-color: var(--bg-light);
    }
    .section-dark {
      background-color: var(--obsidian);
      color: #ffffff;
    }
    .section-heading-wrap {
      margin-bottom: 3.5rem;
      text-align: center;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--emerald);
      background-color: rgba(5, 150, 105, 0.08);
      padding: 0.35rem 0.85rem;
      border-radius: 50px;
      margin-bottom: 1rem;
    }
    .section-title {
      font-size: 2.125rem;
      font-weight: 700;
      line-height: 1.3;
      color: var(--primary-dark);
      margin-bottom: 1rem;
    }
    .section-dark .section-title {
      color: #ffffff;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-sub);
      line-height: 1.8;
    }
    .section-dark .section-desc {
      color: #94a3b8;
    }
    .hero-banner {
      position: relative;
      background-image: linear-gradient(rgba(15, 23, 42, 0.88), rgba(9, 13, 22, 0.94)), url('/assets/images/1fe0a3eb04780143.png');
      background-size: cover;
      background-position: center;
      color: #ffffff;
      padding: 6.5rem 0 5.5rem 0;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 3.5rem;
      align-items: center;
    }
    .hero-h1 {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 1.5rem;
      letter-spacing: -0.5px;
    }
    .hero-p {
      font-size: 1.1rem;
      line-height: 1.8;
      color: #cbd5e1;
      margin-bottom: 2rem;
    }
    .hero-countdown-wrap {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 2rem;
      backdrop-filter: blur(8px);
    }
    .countdown-timer-group {
      display: flex;
      gap: 0.75rem;
    }
    .countdown-unit {
      text-align: center;
      background: rgba(0, 0, 0, 0.4);
      padding: 0.5rem 0.85rem;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.06);
    }
    .countdown-val {
      display: block;
      font-size: 1.5rem;
      font-weight: 700;
      color: #34d399;
      font-family: monospace;
    }
    .countdown-lbl {
      font-size: 0.75rem;
      color: #94a3b8;
    }
    .hero-btn-row {
      display: flex;
      gap: 1rem;
    }
    .btn-main {
      background-color: var(--emerald);
      color: #ffffff;
      padding: 0.85rem 1.85rem;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 1rem;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .btn-main:hover {
      background-color: var(--emerald-hover);
      box-shadow: 0 8px 20px rgba(5, 150, 105, 0.35);
    }
    .btn-secondary {
      background-color: rgba(255, 255, 255, 0.1);
      color: #ffffff;
      padding: 0.85rem 1.85rem;
      border-radius: var(--radius-sm);
      font-weight: 600;
      border: 1px solid rgba(255, 255, 255, 0.2);
    }
    .btn-secondary:hover {
      background-color: rgba(255, 255, 255, 0.18);
    }
    .hero-dashboard-preview {
      background: #111827;
      border-radius: var(--radius-lg);
      border: 1px solid rgba(255, 255, 255, 0.15);
      overflow: hidden;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    }
    .dashboard-preview-header {
      background: #1f2937;
      padding: 0.85rem 1.25rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .dash-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #4b5563;
    }
    .dash-dot.active {
      background: var(--emerald);
    }
    .dash-title-preview {
      font-size: 0.8rem;
      color: #9ca3af;
      margin-left: 0.5rem;
      font-family: monospace;
    }
    .dashboard-preview-body {
      padding: 1.5rem;
    }
    .dash-metric-card {
      background: #1e293b;
      padding: 1rem;
      border-radius: var(--radius-sm);
      margin-bottom: 1rem;
      border-left: 3px solid var(--emerald);
    }
    .dash-metric-val {
      font-size: 1.35rem;
      font-weight: 700;
      color: #f8fafc;
    }
    .dash-metric-sub {
      font-size: 0.75rem;
      color: #94a3b8;
    }
    .grid-2col {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      align-items: center;
    }
    .card-6grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }
    .feature-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2rem;
      box-shadow: var(--shadow-subtle);
      transition: var(--transition-smooth);
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-elevated);
      border-color: #cbd5e1;
    }
    .card-icon-wrap {
      width: 48px;
      height: 48px;
      background-color: rgba(5, 150, 105, 0.1);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--emerald);
      font-size: 1.25rem;
      margin-bottom: 1.25rem;
      font-weight: bold;
    }
    .card-h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--primary-dark);
    }
    .card-p {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .matrix-3grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .matrix-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2.25rem;
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .matrix-card.featured {
      border: 2px solid var(--emerald);
      box-shadow: var(--shadow-elevated);
    }
    .matrix-featured-badge {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--emerald);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 0.25rem 0.75rem;
      border-radius: 50px;
    }
    .matrix-tier {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }
    .matrix-desc {
      font-size: 0.9rem;
      color: var(--text-sub);
      margin-bottom: 1.5rem;
      min-height: 45px;
    }
    .matrix-feature-list {
      list-style: none;
      margin-bottom: 2rem;
      flex-grow: 1;
    }
    .matrix-feature-item {
      font-size: 0.875rem;
      color: var(--text-muted);
      padding: 0.5rem 0;
      border-bottom: 1px solid #f1f5f9;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .matrix-feature-item::before {
      content: "✔";
      color: var(--emerald);
      font-size: 0.8rem;
    }
    .comparison-table-wrap {
      overflow-x: auto;
      background: #111827;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .comparison-table th, .comparison-table td {
      padding: 1.25rem 1.5rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.95rem;
    }
    .comparison-table th {
      background: rgba(255, 255, 255, 0.03);
      color: #94a3b8;
      font-weight: 600;
    }
    .comparison-table td.highlight {
      color: #34d399;
      font-weight: 600;
    }
    .timeline-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
      position: relative;
    }
    .timeline-item {
      background: #ffffff;
      padding: 1.75rem;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      position: relative;
    }
    .timeline-step {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--emerald);
      margin-bottom: 0.5rem;
    }
    .timeline-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--primary-dark);
    }
    .timeline-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .stats-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 2rem;
      text-align: center;
    }
    .stat-item {
      background: #ffffff;
      padding: 2.25rem 1.5rem;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-subtle);
    }
    .stat-number {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--primary-dark);
      line-height: 1.1;
      margin-bottom: 0.5rem;
    }
    .stat-label {
      font-size: 0.875rem;
      color: var(--text-sub);
      font-weight: 500;
    }
    .testimonial-3grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2rem;
      box-shadow: var(--shadow-subtle);
    }
    .testimonial-quote {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 1.5rem;
      font-style: italic;
    }
    .testimonial-author-wrap {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }
    .testimonial-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      color: var(--primary-dark);
      font-size: 0.9rem;
    }
    .author-name {
      font-weight: 700;
      font-size: 0.95rem;
    }
    .author-title {
      font-size: 0.8rem;
      color: var(--text-sub);
    }
    .news-3grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }
    .news-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-subtle);
      transition: var(--transition-smooth);
    }
    .news-card:hover {
      box-shadow: var(--shadow-elevated);
      transform: translateY(-3px);
    }
    .news-img {
      height: 180px;
      width: 100%;
      object-fit: cover;
    }
    .news-content {
      padding: 1.5rem;
    }
    .news-date {
      font-size: 0.75rem;
      color: var(--emerald);
      font-weight: 600;
      margin-bottom: 0.5rem;
    }
    .news-title {
      font-size: 1.1rem;
      font-weight: 700;
      line-height: 1.4;
      margin-bottom: 0.75rem;
      color: var(--primary-dark);
    }
    .news-summary {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .compliance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .compliance-item {
      background: #ffffff;
      padding: 1.5rem;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      text-align: center;
    }
    .compliance-title {
      font-weight: 700;
      font-size: 1rem;
      margin-bottom: 0.5rem;
      color: var(--primary-dark);
    }
    .compliance-desc {
      font-size: 0.85rem;
      color: var(--text-sub);
    }
    .faq-container {
      max-width: 850px;
      margin: 0 auto;
    }
    .faq-accordion {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      background: #ffffff;
      margin-bottom: 1rem;
      overflow: hidden;
    }
    .faq-item input {
      display: none;
    }
    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 1.25rem 1.5rem;
      cursor: pointer;
      font-weight: 600;
      font-size: 1rem;
      color: var(--primary-dark);
    }
    .faq-icon {
      font-weight: bold;
      color: var(--emerald);
      transition: transform 0.3s ease;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background: #f8fafc;
      padding: 0 1.5rem;
      color: var(--text-muted);
      font-size: 0.925rem;
      line-height: 1.7;
    }
    .faq-item input:checked ~ .faq-answer {
      max-height: 250px;
      padding: 1.25rem 1.5rem;
    }
    .faq-item input:checked ~ .faq-question .faq-icon {
      transform: rotate(45deg);
    }
    .form-wrapper {
      max-width: 650px;
      margin: 0 auto;
      background: #ffffff;
      padding: 2.5rem;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-elevated);
    }
    .form-group {
      margin-bottom: 1.25rem;
    }
    .form-label {
      display: block;
      font-weight: 600;
      font-size: 0.875rem;
      margin-bottom: 0.5rem;
      color: var(--primary-dark);
    }
    .form-control {
      width: 100%;
      padding: 0.75rem 1rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-main);
      background: #ffffff;
      transition: var(--transition-smooth);
    }
    .form-control:focus {
      outline: none;
      border-color: var(--emerald);
      box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.15);
    }
    .site-footer {
      background-color: var(--obsidian);
      color: #94a3b8;
      padding: 4.5rem 0 2rem 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      gap: 3rem;
      margin-bottom: 3.5rem;
    }
    .footer-brand-title {
      color: #ffffff;
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 1rem;
    }
    .footer-desc {
      font-size: 0.875rem;
      line-height: 1.8;
      max-width: 400px;
    }
    .footer-links-title {
      color: #ffffff;
      font-size: 0.95rem;
      font-weight: 600;
      margin-bottom: 1rem;
    }
    .footer-link-list {
      list-style: none;
    }
    .footer-link-list li {
      margin-bottom: 0.6rem;
    }
    .footer-link-list a {
      font-size: 0.875rem;
      color: #94a3b8;
    }
    .footer-link-list a:hover {
      color: var(--emerald);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 1.75rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1rem;
      font-size: 0.8125rem;
    }
    .footer-icp {
      color: #64748b;
    }
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
      }
      .card-6grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .timeline-wrap {
        grid-template-columns: repeat(2, 1fr);
      }
      .matrix-3grid, .testimonial-3grid, .news-3grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stats-bar-grid, .compliance-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .top-notice-bar {
        display: none;
      }
      .header-nav {
        height: 64px;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 1.5rem;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
        gap: 1rem;
      }
      .nav-links.show {
        display: flex;
      }
      .cta-header-btn {
        display: none;
      }
      .hero-h1 {
        font-size: 2rem;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .grid-2col {
        grid-template-columns: 1fr;
        gap: 2rem;
      }
      .card-6grid, .matrix-3grid, .timeline-wrap, .testimonial-3grid, .news-3grid, .compliance-grid {
        grid-template-columns: 1fr;
      }
      .stats-bar-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
      }
      .hero-countdown-wrap {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
      }
      .form-wrapper {
        padding: 1.5rem;
      }
    }
    @media (max-width: 520px) {
      .stats-bar-grid {
        grid-template-columns: 1fr;
      }
      .hero-btn-row {
        flex-direction: column;
      }
      .btn-main, .btn-secondary {
        width: 100%;
        text-align: center;
      }
    }