/* roulang page: index */
:root {
      --primary: #1e40af;
      --accent: #0284c7;
      --bg-base: #f8fafc;
      --surface: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #e2e8f0;
      --card-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.02);
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    body {
      background-color: var(--bg-base);
      color: var(--text-main);
      overflow-x: hidden;
    }
    .custom-card-shadow {
      box-shadow: var(--card-shadow);
    }
    .stat-number {
      font-variant-numeric: tabular-nums;
      font-feature-settings: "tnum";
    }
    .hero-bg {
      background-image: linear-gradient(to right, rgba(15, 23, 42, 0.88), rgba(30, 64, 175, 0.82)), url('/assets/images/371d28c42321a600.webp');
      background-size: cover;
      background-position: center;
    }
    .badge-chip {
      background: rgba(2, 132, 199, 0.12);
      border: 1px solid rgba(2, 132, 199, 0.25);
    }