/* roulang page: index */
:root {
      --primary: #1a365d;
      --primary-dark: #0f172a;
      --secondary: #c59b27;
      --accent: #b45309;
      --bg-light: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #e2e8f0;
    }
    html {
      scroll-behavior: smooth;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    .ticket-edge {
      background: radial-gradient(circle at 0 center, transparent 8px, #ffffff 8px) 0 0/100% 100%;
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
    }
    .accordion-open .accordion-content {
      max-height: 280px;
    }
    .accordion-open .icon-arrow {
      transform: rotate(180deg);
    }