/* roulang page: index */
:root {
      --primary-bg: #0F172A;
      --brand-emerald: #10B981;
      --brand-cyan: #06B6D4;
      --text-main: #F8FAFC;
      --text-muted: #64748B;
      --surface-card: #1E293B;
      --border-dark: #334155;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--primary-bg);
      color: var(--text-main);
      line-height: 1.7;
    }
    .custom-scroll::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }
    .custom-scroll::-webkit-scrollbar-thumb {
      background: #334155;
      border-radius: 3px;
    }
    .custom-scroll::-webkit-scrollbar-track {
      background: #0F172A;
    }
    .gradient-text {
      background: linear-gradient(135deg, #10B981 0%, #06B6D4 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }