/* roulang page: index */
:root {
      --primary: #1E3A8A;
      --accent: #D97706;
      --dark: #0F172A;
      --text-muted: #475569;
      --border-color: #E2E8F0;
      --bg-alt: #F8FAFC;
    }
    html {
      scroll-behavior: smooth;
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", sans-serif;
    }
    body {
      color: #0F172A;
      background-color: #FFFFFF;
      line-height: 1.8;
      overflow-x: hidden;
    }
    .custom-container {
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.25rem;
      padding-right: 1.25rem;
    }
    .hero-bg {
      background-image: linear-gradient(rgba(15, 23, 42, 0.88), rgba(30, 58, 138, 0.82)), url('/assets/images/cc6e696e75264a71.webp');
      background-size: cover;
      background-position: center;
    }
    .dark-section-bg {
      background-image: linear-gradient(rgba(15, 23, 42, 0.94), rgba(15, 23, 42, 0.96)), url('/assets/images/979467b2500a7769.webp');
      background-size: cover;
      background-position: center;
    }
    .timeline-item::before {
      content: '';
      position: absolute;
      top: 1rem;
      left: 1rem;
      width: 2px;
      height: 100%;
      background: #CBD5E1;
      z-index: 0;
    }
    .badge-amber {
      background-color: #FEF3C7;
      color: #B45309;
      border: 1px solid #FCD34D;
    }
    .badge-blue {
      background-color: #EFF6FF;
      color: #1E3A8A;
      border: 1px solid #BFDBFE;
    }
    .industrial-card {
      transition: all 0.3s ease;
    }
    .industrial-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 24px -10px rgba(15, 23, 42, 0.15);
    }