/* roulang page: index */
:root {
      --primary: #1A56DB;
      --primary-hover: #1D4ED8;
      --secondary: #0E9F6E;
      --bg-light: #F9FAFB;
      --text-main: #111827;
      --text-body: #374151;
      --text-muted: #6B7280;
      --border-color: #E5E7EB;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: var(--text-body);
      background-color: #FFFFFF;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.05), 0 2px 6px -1px rgba(0, 0, 0, 0.03);
    }
    .hover-card {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .hover-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 25px -5px rgba(26, 86, 219, 0.08), 0 10px 10px -5px rgba(26, 86, 219, 0.04);
      border-color: #BFDBFE;
    }
    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(30, 58, 138, 0.88) 100%), url('/assets/images/23f5bf8d5ed45a35.png') center/cover no-repeat;
    }
    .dark-slate-section {
      background-color: #0F172A;
      background-image: radial-gradient(#1E293B 1px, transparent 1px);
      background-size: 24px 24px;
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
    }
    .accordion-open .accordion-content {
      max-height: 300px;
    }
    .accordion-open .accordion-arrow {
      transform: rotate(180deg);
    }