/* roulang page: index */
:root {
      --primary: #1E40AF;
      --accent: #10B981;
      --support: #3B82F6;
      --bg-base: #F8FAFC;
      --text-main: #1E293B;
      --text-muted: #475569;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      background-color: var(--bg-base);
      color: var(--text-main);
      overflow-x: hidden;
    }
    .hero-bg {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(30, 64, 175, 0.75) 100%), url('/assets/images/2fa8ad5742968dbd.webp') center/cover no-repeat;
    }
    .custom-shadow {
      box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.04), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      transition: all 0.25s ease;
    }
    .custom-shadow:hover {
      box-shadow: 0 20px 25px -5px rgba(30, 64, 175, 0.1), 0 8px 10px -6px rgba(16, 185, 129, 0.08);
      transform: translateY(-3px);
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
    }
    .accordion-item.active .accordion-content {
      max-height: 240px;
    }
    .accordion-item.active .accordion-arrow {
      transform: rotate(180deg);
    }