/* roulang page: index */
:root {
      --primary: #059669;
      --primary-dark: #047857;
      --secondary: #0d9488;
      --accent: #0e7490;
      --surface: #ffffff;
      --background: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #e2e8f0;
      --radius-xl: 1.5rem;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--background);
      overflow-x: hidden;
      margin: 0;
      padding: 0;
    }
    .custom-shadow {
      box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(13, 148, 136, 0.04);
    }
    .custom-glow {
      box-shadow: 0 0 40px -10px rgba(13, 148, 136, 0.15);
    }
    .tab-active {
      background: linear-gradient(135deg, #059669, #0d9488);
      color: #ffffff;
    }