/* roulang page: index */
:root {
      --brand-primary: #1035ac;
      --brand-accent: #00d084;
      --brand-night: #0a1128;
      --text-main: #0f172a;
      --text-sub: #475569;
      --bg-page: #f8fafd;
    }
    html {
      scroll-behavior: smooth;
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    body {
      background-color: var(--bg-page);
      color: var(--text-main);
      overflow-x: hidden;
    }
    .custom-card-shadow {
      box-shadow: 0 4px 20px -2px rgba(16, 53, 172, 0.06);
      transition: all 0.28s ease;
    }
    .custom-card-shadow:hover {
      box-shadow: 0 16px 32px -4px rgba(16, 53, 172, 0.14);
      transform: translateY(-4px);
    }
    .hero-glow {
      background: radial-gradient(circle at 50% 30%, rgba(16, 53, 172, 0.08) 0%, rgba(248, 250, 253, 0) 70%);
    }
    .tech-pattern {
      background-image: radial-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 0);
      background-size: 24px 24px;
    }
    .badge-soft {
      background-color: rgba(16, 53, 172, 0.08);
      color: #1035ac;
    }