/* roulang page: index */
:root {
      --primary: #1e40af;
      --accent: #3b82f6;
      --bg-light: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #475569;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
      color: var(--text-main);
      background-color: #ffffff;
      -webkit-font-smoothing: antialiased;
    }
    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(30, 64, 175, 0.82) 100%);
    }
    .custom-scrollbar::-webkit-scrollbar {
      height: 6px;
    }
    .custom-scrollbar::-webkit-scrollbar-thumb {
      background-color: #cbd5e1;
      border-radius: 4px;
    }