/* roulang page: index */
:root {
      --primary: #0f3d59;
      --primary-hover: #1d638d;
      --dark-surface: #0b1a28;
      --bg-soft: #f8fafc;
      --border-color: #e2e8f0;
    }
    body {
      font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: #0f172a;
      background-color: #ffffff;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .hero-gold-card {
      background: linear-gradient(145deg, #18222d 0%, #0d141c 100%);
      border: 1px solid rgba(217, 119, 6, 0.35);
      box-shadow: 0 20px 45px -10px rgba(0, 0, 0, 0.45);
    }
    .badge-gold {
      background: linear-gradient(135deg, #f59e0b 0%, #b45309 100%);
      color: #ffffff;
    }
    details summary::-webkit-details-marker {
      display: none;
    }