/* roulang page: index */
:root {
      --bg-dark: #0B0E14;
      --card-dark: #121A27;
      --border-dark: #1F2E45;
      --accent-green: #00E676;
      --accent-cyan: #06B6D4;
      --text-muted: #94A3B8;
    }
    body {
      background-color: var(--bg-dark);
      color: #F8FAFC;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      overflow-x: hidden;
    }
    .neon-border {
      border: 1px solid var(--border-dark);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .neon-border:hover {
      border-color: rgba(0, 230, 118, 0.45);
      box-shadow: 0 0 25px rgba(0, 230, 118, 0.12);
      transform: translateY(-4px);
    }
    .pulse-dot {
      animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
    }
    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: .4; transform: scale(0.85); }
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out, padding 0.35s ease;
    }
    .faq-item.active .faq-answer {
      max-height: 280px;
      padding-top: 1rem;
    }
    .faq-item.active .faq-chevron {
      transform: rotate(180deg);
    }