/* roulang page: index */
:root {
      --primary: #0D9488;
      --primary-dark: #0F766E;
      --accent: #F97316;
      --text-main: #0F172A;
      --text-muted: #475569;
      --bg-light: #F8FAFC;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #FFFFFF;
      line-height: 1.75;
      letter-spacing: 0.01em;
    }
    .custom-scroll::-webkit-scrollbar {
      height: 6px;
      width: 6px;
    }
    .custom-scroll::-webkit-scrollbar-thumb {
      background-color: #CBD5E1;
      border-radius: 4px;
    }
    .hero-mask {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(13, 148, 136, 0.78) 100%);
    }
    .glass-card {
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(226, 232, 240, 0.8);
    }
    .glass-dark {
      background: rgba(30, 41, 59, 0.7);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .tab-active {
      background-color: #0D9488;
      color: #FFFFFF;
    }