/* roulang page: index */
:root {
      --primary-color: #1d4ed8;
      --accent-color: #06b6d4;
      --bg-dark: #0f172a;
      --bg-card: #1e293b;
      --text-main: #0f172a;
      --text-muted: #64748b;
      --border-light: #e2e8f0;
      --border-dark: #334155;
    }
    body {
      font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
      line-height: 1.7;
      color: #334155;
      background-color: #f8fafc;
      overflow-x: hidden;
    }
    .text-balance-cn {
      text-wrap: balance;
    }
    .glass-dark {
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }
    .custom-gradient-text {
      background: linear-gradient(135deg, #38bdf8 0%, #06b6d4 50%, #3b82f6 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .tab-active {
      border-color: #06b6d4;
      color: #06b6d4;
      background-color: rgba(6, 182, 212, 0.08);
    }