/* roulang page: index */
:root {
      --primary: #0F172A;
      --accent: #00D26A;
      --accent-flow: #0284C7;
      --amber: #F59E0B;
      --surface-light: #F8FAFC;
      --surface-dark: #0B0F19;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
    }
    html {
      scroll-behavior: smooth;
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    body {
      color: var(--text-body);
      background-color: #FFFFFF;
      overflow-x: hidden;
    }
    .hero-bg {
      background-image: linear-gradient(to right, rgba(15, 23, 42, 0.94), rgba(15, 23, 42, 0.75)), url('/assets/images/194d3bf68af6b472.jpg');
      background-size: cover;
      background-position: center;
    }
    .dark-showcase-bg {
      background-color: var(--surface-dark);
      background-image: radial-gradient(rgba(2, 132, 199, 0.15) 1px, transparent 1px);
      background-size: 28px 28px;
    }
    .metric-value {
      font-feature-settings: "tnum";
      font-variant-numeric: tabular-nums;
    }