/* roulang page: index */
:root {
            --primary: #1e3a8a;
            --primary-dark: #0f172a;
            --accent: #059669;
            --highlight: #ea580c;
            --bg-base: #f8fafc;
            --text-main: #0f172a;
            --text-muted: #64748b;
            --card-border: #e2e8f0;
            --card-radius: 1.5rem;
            --shadow-soft: 0 10px 25px -5px rgba(15, 23, 42, 0.04);
            --shadow-hover: 0 20px 30px -10px rgba(15, 23, 42, 0.08);
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            background-color: var(--bg-base);
            color: var(--text-main);
            overflow-x: hidden;
        }
        .card-custom {
            border-radius: var(--card-radius);
            border: 1px solid var(--card-border);
            box-shadow: var(--shadow-soft);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: #cbd5e1;
        }
        .badge-pill {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.875rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .hero-pattern {
            background-image: radial-gradient(rgba(30, 58, 138, 0.08) 1px, transparent 1px);
            background-size: 24px 24px;
        }
        details > summary {
            list-style: none;
        }
        details > summary::-webkit-details-marker {
            display: none;
        }

/* roulang page: category1 */
:root {
      --primary: #1e3a8a;
      --primary-dark: #0f172a;
      --accent: #059669;
      --highlight: #ea580c;
      --bg-base: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #64748b;
      --card-border: #e2e8f0;
      --card-radius: 1.5rem;
      --shadow-soft: 0 10px 25px -5px rgba(15, 23, 42, 0.04);
      --shadow-hover: 0 20px 30px -10px rgba(15, 23, 42, 0.08);
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
      background-color: var(--bg-base);
      color: var(--text-main);
      overflow-x: hidden;
    }
    .card-custom {
      border-radius: var(--card-radius);
      border: 1px solid var(--card-border);
      box-shadow: var(--shadow-soft);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card-custom:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: #cbd5e1;
    }
    .badge-pill {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.875rem;
      border-radius: 9999px;
      font-size: 0.75rem;
      font-weight: 600;
    }
    .hero-pattern {
      background-image: radial-gradient(rgba(30, 58, 138, 0.08) 1px, transparent 1px);
      background-size: 24px 24px;
    }