/* roulang page: index */
:root {
      --primary-gradient: linear-gradient(135deg, #0D9488 0%, #0284C7 100%);
      --accent-gradient: linear-gradient(135deg, #6366F1 0%, #0284C7 100%);
      --card-gradient: linear-gradient(180deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 250, 252, 0.95) 100%);
      --dark-card: #131A29;
    }
    body {
      background-color: #F8FAFC;
      color: #334155;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
    }
    .brand-gradient-text {
      background: linear-gradient(135deg, #0D9488 0%, #0284C7 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .accent-gradient-text {
      background: linear-gradient(135deg, #6366F1 0%, #0284C7 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .btn-gradient {
      background: linear-gradient(135deg, #0D9488 0%, #0284C7 100%);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .btn-gradient:hover {
      box-shadow: 0 10px 25px -5px rgba(13, 148, 136, 0.4), 0 8px 10px -6px rgba(2, 132, 199, 0.3);
      transform: translateY(-2px);
    }
    .card-hover-effect {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card-hover-effect:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      border-color: rgba(13, 148, 136, 0.4);
    }
    .glow-dot {
      box-shadow: 0 0 10px rgba(13, 148, 136, 0.8);
    }