/* roulang page: index */
:root {
      --brand-blue: #0F4C81;
      --brand-green: #00B074;
      --brand-dark: #0B1320;
      --brand-slate: #0F172A;
      --brand-muted: #475569;
      --brand-bg: #F7F9FC;
      --brand-orange: #FF6B35;
      --card-radius: 20px;
      --card-shadow: 0 10px 30px -5px rgba(15, 23, 42, 0.06);
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      background-color: var(--brand-bg);
      color: var(--brand-slate);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .custom-gradient-btn {
      background: linear-gradient(135deg, #0F4C81 0%, #00B074 100%);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-gradient-btn:hover {
      box-shadow: 0 8px 20px -3px rgba(0, 176, 116, 0.4);
      transform: translateY(-2px);
    }
    .custom-card {
      border-radius: var(--card-radius);
      border: 1px solid rgba(0, 176, 116, 0.15);
      box-shadow: var(--card-shadow);
      background: #FFFFFF;
      transition: all 0.3s ease;
    }
    .custom-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 36px -6px rgba(15, 76, 129, 0.12);
      border-color: rgba(0, 176, 116, 0.35);
    }
    .badge-pill {
      display: inline-flex;
      align-items: center;
      padding: 0.3rem 0.85rem;
      border-radius: 9999px;
      font-size: 0.825rem;
      font-weight: 600;
      background: rgba(0, 176, 116, 0.1);
      color: #008759;
      border: 1px solid rgba(0, 176, 116, 0.25);
    }
    .badge-orange {
      background: rgba(255, 107, 53, 0.1);
      color: #FF6B35;
      border: 1px solid rgba(255, 107, 53, 0.3);
    }
    /* 平滑折叠卡片 */
    details summary::-webkit-details-marker {
      display: none;
    }