/* roulang page: index */
:root {
      --bg-dark: #0D1117;
      --card-bg: #161B22;
      --border-color: #30363D;
      --gradient-brand: linear-gradient(135deg, #7928CA 0%, #0070F3 100%);
    }
    body {
      background-color: var(--bg-dark);
      color: #F0F6FC;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .text-gradient {
      background: linear-gradient(135deg, #A855F7 0%, #38BDF8 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .badge-glow {
      border: 1px solid rgba(0, 112, 243, 0.4);
      box-shadow: 0 0 12px rgba(0, 112, 243, 0.2);
    }
    .card-glow {
      box-shadow: 0 8px 24px -4px rgba(0, 112, 243, 0.12);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .card-glow:hover {
      box-shadow: 0 12px 32px 0 rgba(121, 40, 202, 0.25);
      border-color: rgba(121, 40, 202, 0.5);
      transform: translateY(-3px);
    }
    .hero-bg-overlay {
      background: linear-gradient(to right, rgba(13, 17, 23, 0.96) 30%, rgba(13, 17, 23, 0.7) 100%);
    }