/* roulang page: index */
:root {
      --primary: #0F172A;
      --secondary: #1E293B;
      --accent: #0D9488;
      --accent-warm: #D97706;
      --bg-base: #F8FAFC;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
    }
    body {
      font-family: var(--font-sans, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif);
      color: #334155;
      background-color: var(--bg-base);
      -webkit-font-smoothing: antialiased;
    }
    .num-tabular {
      font-variant-numeric: tabular-nums;
    }
    .custom-card {
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.04);
    }
    .custom-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 32px -4px rgba(15, 23, 42, 0.08);
      border-color: rgba(13, 148, 136, 0.4);
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out;
    }
    .accordion-item.active .accordion-content {
      max-height: 300px;
    }
    .accordion-item.active .accordion-icon {
      transform: rotate(180deg);
    }