/* roulang page: index */
:root {
      --primary-color: #1d4ed8;
      --secondary-color: #0284c7;
      --accent-color: #0d9488;
      --bg-light: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #64748b;
    }
    body {
      color: #334155;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      -webkit-font-smoothing: antialiased;
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
    }
    .custom-shadow-hover:hover {
      box-shadow: 0 16px 32px -4px rgba(15, 23, 42, 0.12);
    }
    .slant-clip {
      clip-path: polygon(0 0, 100% 0, 100% calc(100% - 3.5vw), 0 100%);
    }