/* roulang page: index */
:root {
      --bg-dark: #0A0F1D;
      --bg-deep: #070A12;
      --color-primary: #1E3A8A;
      --color-amber: #F59E0B;
      --color-green: #10B981;
      --text-main: #F3F4F6;
      --text-muted: #9CA3AF;
      --border-color: rgba(255, 255, 255, 0.08);
    }
    body {
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    .grid-lines {
      background-size: 40px 40px;
      background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    }
    .amber-glow {
      box-shadow: 0 0 25px -5px rgba(245, 158, 11, 0.3);
    }
    .blue-glow {
      box-shadow: 0 0 35px -5px rgba(30, 58, 138, 0.4);
    }
    .tabular {
      font-variant-numeric: tabular-nums;
    }