/* roulang page: index */
:root {
      --primary: #0F52BA;
      --primary-hover: #0B3E8F;
      --accent: #00A86B;
      --bg-base: #F8FAFC;
      --card-bg: #FFFFFF;
      --text-main: #0F172A;
      --text-sub: #475569;
      --text-light: #94A3B8;
      --border-color: #E2E8F0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-base);
      color: var(--text-main);
      overflow-x: hidden;
      margin: 0;
      padding: 0;
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(15, 82, 186, 0.06), 0 2px 6px -1px rgba(0, 0, 0, 0.03);
    }
    .custom-shadow:hover {
      box-shadow: 0 12px 30px -4px rgba(15, 82, 186, 0.12), 0 4px 10px -2px rgba(0, 0, 0, 0.05);
      transform: translateY(-4px);
    }
    .metric-badge {
      background: linear-gradient(135deg, rgba(0, 168, 107, 0.12) 0%, rgba(0, 168, 107, 0.04) 100%);
      border: 1px solid rgba(0, 168, 107, 0.3);
    }
    details summary::-webkit-details-marker {
      display: none;
    }
    .glass-nav {
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }