/* roulang page: index */
:root {
      --primary: #0F766E;
      --secondary: #0284C7;
      --accent: #EA580C;
      --bg-light: #F8FAFC;
    }
    body {
      color: #334155;
      background-color: #FAFCFD;
      font-size: 15px;
      line-height: 1.7;
    }
    .custom-shadow-card {
      box-shadow: 0 4px 20px -2px rgba(15, 118, 110, 0.06), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-shadow-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 28px -4px rgba(15, 118, 110, 0.12), 0 4px 8px -2px rgba(0, 0, 0, 0.06);
    }
    .hero-gradient {
      background: linear-gradient(135deg, rgba(15, 118, 110, 0.95) 0%, rgba(15, 23, 42, 0.92) 100%);
    }
    .badge-soft {
      background-color: #ECFDF5;
      color: #047857;
      border: 1px solid #A7F3D0;
    }
    /* 平滑过渡 */
    .faq-answer {
      transition: max-height 0.35s ease-out, opacity 0.3s ease-out;
    }