/* roulang page: index */
:root {
      --brand-primary: #0284c7;
      --brand-dark: #0369a1;
      --brand-accent: #0ea5e9;
      --brand-green: #10b981;
      --bg-light: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #64748b;
    }
    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #ffffff;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .hero-banner {
      background: linear-gradient(135deg, rgba(240, 249, 255, 0.95) 0%, rgba(224, 242, 254, 0.9) 100%), url('/assets/images/b3d7631fc28543b5.png') center/cover no-repeat;
    }
    .hero-strip-bg {
      background: linear-gradient(90deg, #0369a1 0%, #0284c7 60%, #0ea5e9 100%);
    }
    .custom-shadow {
      box-shadow: 0 10px 25px -5px rgba(2, 132, 199, 0.08), 0 8px 10px -6px rgba(2, 132, 199, 0.04);
    }
    .custom-shadow-hover:hover {
      box-shadow: 0 20px 35px -5px rgba(2, 132, 199, 0.15), 0 10px 10px -5px rgba(2, 132, 199, 0.08);
      transform: translateY(-4px);
    }
    .card-border-glow {
      border: 1px solid #e2e8f0;
      transition: all 0.3s ease;
    }
    .card-border-glow:hover {
      border-color: #38bdf8;
    }
    .smooth-scroll {
      scroll-behavior: smooth;
    }