/* roulang page: index */
:root {
      --primary: #1e40af;
      --primary-hover: #1d4ed8;
      --secondary: #0d9488;
      --bg-light: #f8fafc;
      --card-bg: #ffffff;
      --text-main: #0f172a;
      --text-muted: #64748b;
    }
    body {
      background-color: var(--bg-light);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .custom-shadow {
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    }
    .custom-shadow-hover:hover {
      box-shadow: 0 12px 30px rgba(37, 99, 235, 0.08);
    }