/* roulang page: index */
:root {
      --bg-dark: #0F172A;
      --accent-green: #10B981;
      --accent-orange: #F97316;
      --text-main: #1E293B;
      --text-muted: #64748B;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      color: #334155;
      background-color: #F8FAFC;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .custom-scrollbar::-webkit-scrollbar {
      height: 6px;
      width: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background: #CBD5E1;
      border-radius: 4px;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out, opacity 0.25s ease;
      opacity: 0;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      opacity: 1;
    }
    .faq-item.active .faq-icon {
      transform: rotate(180deg);
    }