/* roulang page: index */
:root {
      --primary-color: #1E56A0;
      --primary-hover: #16437E;
      --mint-color: #00A896;
      --bg-light: #F8FAFC;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-body);
      background-color: #FFFFFF;
      overflow-x: hidden;
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(30, 86, 160, 0.08), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
    }
    .custom-shadow-hover:hover {
      box-shadow: 0 12px 30px -4px rgba(30, 86, 160, 0.16), 0 4px 10px -2px rgba(0, 0, 0, 0.06);
      transform: translateY(-3px);
    }
    .transition-base {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out;
    }
    .accordion-item.active .accordion-content {
      max-height: 350px;
    }
    .accordion-item.active .accordion-icon {
      transform: rotate(180deg);
    }