/* roulang page: index */
:root {
      --primary-color: #059669;
      --primary-hover: #047857;
      --dark-slate: #0f172a;
      --deep-night: #0b0f19;
      --card-border: #e2e8f0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: #334155;
      background-color: #f8fafc;
      overflow-x: hidden;
      line-height: 1.6;
    }
    .hero-banner {
      background: linear-gradient(rgba(15, 23, 42, 0.88), rgba(15, 23, 42, 0.92)), url('/assets/images/d0055e3e84f9d474.png') center/cover no-repeat;
    }
    .custom-shadow {
      box-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.05);
    }
    .custom-shadow-lg {
      box-shadow: 0 10px 30px -4px rgba(0, 0, 0, 0.08);
    }
    .card-transition {
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card-transition:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 28px -4px rgba(16, 185, 129, 0.12);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
    }
    .faq-item.active .faq-answer {
      max-height: 240px;
    }
    .faq-item.active .faq-icon {
      transform: rotate(180deg);
    }