/* roulang page: index */
:root {
      --primary-cyan: #06B6D4;
      --primary-blue: #0284C7;
      --primary-indigo: #4F46E5;
      --bg-dark: #0B1120;
      --bg-slate: #0F172A;
      --text-main: #1E293B;
      --text-muted: #64748B;
    }
    html {
      box-sizing: border-box;
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      color: #1e293b;
      background-color: #f8fafc;
    }
    *, *::before, *::after {
      box-sizing: inherit;
    }
    .text-gradient {
      background: linear-gradient(135deg, #0284C7 0%, #4F46E5 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .bg-gradient-brand {
      background: linear-gradient(135deg, #0284C7 0%, #4F46E5 100%);
    }
    .hero-coupon-ticket {
      background: linear-gradient(135deg, #0F172A 0%, #1E1B4B 100%);
      position: relative;
    }
    .hero-coupon-ticket::before, .hero-coupon-ticket::after {
      content: '';
      position: absolute;
      width: 24px;
      height: 24px;
      background-color: #0B1120;
      border-radius: 50%;
      top: 50%;
      transform: translateY(-50%);
    }
    .hero-coupon-ticket::before { left: -12px; }
    .hero-coupon-ticket::after { right: -12px; }
    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
    }
    .faq-content.open {
      max-height: 500px;
      transition: max-height 0.3s ease-in-out;
    }
    .ticket-dashed-border {
      border-left: 2px dashed rgba(255, 255, 255, 0.2);
    }
    @media (max-width: 768px) {
      .ticket-dashed-border {
        border-left: none;
        border-top: 2px dashed rgba(255, 255, 255, 0.2);
      }
    }