/* roulang page: index */
:root {
      --primary: #1e40af;
      --accent: #3b82f6;
      --bg-light: #f8fafc;
      --text-main: #0f172a;
      --text-body: #334155;
      --text-muted: #64748b;
      --border-color: #e2e8f0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: var(--text-body);
      background-color: #ffffff;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
    }
    .custom-card-shadow {
      box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-card-shadow:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 20px -3px rgba(30, 64, 175, 0.08), 0 4px 6px -4px rgba(30, 64, 175, 0.04);
      border-color: #bfdbfe;
    }
    .bento-hero-grid {
      display: grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 1.5rem;
    }
    @media (max-width: 1024px) {
      .bento-hero-grid {
        grid-template-columns: 1fr;
      }
    }