/* roulang page: index */
:root {
      --primary: #0F52BA;
      --secondary: #0EA5E9;
      --success: #10B981;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --bg-page: #F8FAFC;
      --border-color: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: var(--text-body);
      background-color: var(--bg-page);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    }
    .custom-shadow {
      box-shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-shadow:hover {
      box-shadow: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      transform: translateY(-3px);
    }
    .hero-banner-bg {
      background-image: linear-gradient(to right, rgba(248, 250, 252, 0.95), rgba(241, 245, 249, 0.88)), url('/assets/images/cfe47d3f26cfa590.webp');
      background-size: cover;
      background-position: center;
    }
    .dark-sec-bg {
      background-image: radial-gradient(circle at top right, #1e293b 0%, #0f172a 100%);
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
    }
    .accordion-open .accordion-content {
      max-height: 300px;
    }