/* roulang page: index */
:root {
      --clinical-primary: #0E7490;
      --clinical-emerald: #059669;
      --clinical-dark: #0B192C;
      --clinical-bg: #F8FAFC;
    }
    body {
      background-color: var(--clinical-bg);
      color: #334155;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    .text-gradient {
      background: linear-gradient(135deg, #06B6D4 0%, #0E7490 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .btn-gradient {
      background: linear-gradient(135deg, #06B6D4 0%, #0E7490 100%);
    }
    .btn-gradient:hover {
      background: linear-gradient(135deg, #0891B2 0%, #155E75 100%);
    }
    .glass-nav {
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-in-out;
    }
    .accordion-item.active .accordion-content {
      max-height: 280px;
    }
    .accordion-item.active .accordion-arrow {
      transform: rotate(180deg);
    }