/* roulang page: index */
:root {
      --color-brand: #0F3E75;
      --color-accent: #0EA5E9;
      --color-night: #0B192C;
      --color-slate: #1E293B;
      --color-border: #E2E8F0;
      --shadow-soft: 0 4px 20px -2px rgba(15, 62, 117, 0.05);
      --shadow-hover: 0 12px 28px -4px rgba(15, 62, 117, 0.12);
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: #0F172A;
      background-color: #F8FAFC;
    }
    .custom-card-shadow {
      box-shadow: var(--shadow-soft);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .custom-card-shadow:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }
    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(248, 250, 252, 0.94) 0%, rgba(241, 245, 249, 0.88) 100%), url('/assets/images/a046a66cb8f9c97a.webp') center/cover no-repeat;
    }
    .glass-nav {
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out;
    }
    .faq-item.active .faq-answer {
      max-height: 280px;
    }
    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
    }