/* roulang page: index */
:root {
      --bg-main: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-color: #E2E8F0;
      --color-emerald: #059669;
      --color-teal: #0D9488;
      --color-amber: #D97706;
      --color-night: #0B0F19;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
    }
    .custom-container {
      width: 100%;
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }
    .hero-bg {
      background-image: linear-gradient(to right, rgba(11, 15, 25, 0.95), rgba(11, 15, 25, 0.85)), url('/assets/images/aa2ba2574626665b.jpg');
      background-size: cover;
      background-position: center;
    }
    .section-border {
      border-bottom: 1px solid var(--border-color);
    }
    .mono-num {
      font-feature-settings: "tnum";
      font-variant-numeric: tabular-nums;
    }