/* roulang page: index */
:root {
      --primary: #1E293B;
      --accent-cyan: #0E7490;
      --accent-orange: #F97316;
      --bg-light: #F8FAFC;
      --bg-alt: #F1F5F9;
    }
    body {
      color: #334155;
      background-color: var(--bg-light);
      line-height: 1.75;
      letter-spacing: 0.02em;
    }
    .hero-bg {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(14, 116, 144, 0.85) 100%), url('/assets/images/41bcb199b776970f.webp') center/cover no-repeat;
    }
    .custom-card {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 24px -10px rgba(15, 23, 42, 0.12);
    }
    details summary::-webkit-details-marker {
      display: none;
    }