/* roulang page: index */
:root {
      --brand-blue: #0E4FA8;
      --brand-blue-dark: #093777;
      --brand-blue-light: #EBF3FC;
      --accent-green: #00C988;
      --accent-orange: #FF6838;
      --bg-dark: #0B1528;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #94A3B8;
      --border-color: #E2E8F0;
    }
    html {
      scroll-behavior: smooth;
      font-family: 'Inter', 'Noto Sans SC', sans-serif;
    }
    body {
      color: var(--text-main);
      background-color: #F8FAFC;
      overflow-x: hidden;
    }
    .custom-shadow {
      box-shadow: 0 10px 30px -5px rgba(14, 79, 168, 0.08);
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(14, 79, 168, 0.12) 0%, rgba(255, 255, 255, 0) 70%);
    }
    .dark-glow {
      background: radial-gradient(circle at 80% 20%, rgba(0, 201, 136, 0.15) 0%, rgba(11, 21, 40, 0) 60%);
    }
    details summary::-webkit-details-marker {
      display: none;
    }
    details[open] summary .faq-icon {
      transform: rotate(180deg);
      color: var(--brand-blue);
    }