/* roulang page: index */
:root {
      --color-primary: #0F172A;
      --color-accent: #10B981;
      --color-highlight: #F97316;
      --color-bg-light: #F8FAFC;
    }
    body {
      font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
      color: #334155;
      background-color: #FFFFFF;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    .custom-card-shadow {
      box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-card-shadow:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 28px -4px rgba(16, 185, 129, 0.15);
      border-color: rgba(16, 185, 129, 0.4);
    }
    .cta-btn {
      min-height: 44px;
      min-width: 44px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .hero-bg-overlay {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(11, 17, 32, 0.88) 100%);
    }