/* roulang page: index */
:root {
      --primary-blue: #0052D9;
      --aurora-green: #00A870;
      --accent-orange: #ED7B2F;
      --surface-bg: #F8FAFC;
      --dark-space: #0B1528;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: #1E293B;
      background-color: var(--surface-bg);
      line-height: 1.7;
      letter-spacing: -0.01em;
    }
    h1, h2, h3, h4 {
      line-height: 1.28;
    }
    .custom-card {
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .custom-card:hover {
      transform: translateY(-4px);
      border-color: #93C5FD;
      box-shadow: 0 16px 32px -8px rgba(0, 82, 217, 0.12);
    }
    .hero-mask {
      background: linear-gradient(135deg, rgba(11, 21, 40, 0.94) 0%, rgba(11, 21, 40, 0.82) 100%);
    }
    .map-badge-pulse::after {
      content: '';
      position: absolute;
      width: 100%;
      height: 100%;
      top: 0;
      left: 0;
      background-color: #00A870;
      border-radius: 9999px;
      animation: pulse-ring 2s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
    }
    @keyframes pulse-ring {
      0% { transform: scale(0.95); opacity: 0.8; }
      50% { transform: scale(1.6); opacity: 0; }
      100% { transform: scale(1.6); opacity: 0; }
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
    }
    .accordion-content.active {
      max-height: 500px;
      transition: max-height 0.35s ease-in-out;
    }