/* roulang page: index */
:root {
      --brand-primary: #0284C7;
      --brand-teal: #0D9488;
      --clinical-dark: #0F172A;
      --clinical-bg: #F8FAFC;
      --border-color: #E2E8F0;
    }
    * {
      box-sizing: border-box;
      -webkit-font-smoothing: antialiased;
    }
    body {
      background-color: var(--clinical-bg);
      color: #334155;
      font-family: 'Inter', 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
      line-height: 1.75;
    }
    .text-balance {
      text-wrap: balance;
    }
    .custom-scroll::-webkit-scrollbar {
      height: 6px;
      width: 6px;
    }
    .custom-scroll::-webkit-scrollbar-thumb {
      background: #CBD5E1;
      border-radius: 9999px;
    }
    .hero-mask {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.96) 0%, rgba(11, 19, 32, 0.90) 50%, rgba(2, 132, 199, 0.75) 100%);
    }
    .card-hover-fx {
      transition: transform 200ms ease-out, border-color 200ms ease-out, box-shadow 200ms ease-out;
    }
    .card-hover-fx:hover {
      transform: translateY(-4px);
      border-color: #0284C7;
      box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.06);
    }
    details summary::-webkit-details-marker {
      display: none;
    }
    details[open] summary svg {
      transform: rotate(180deg);
    }