/* roulang page: index */
:root {
      --primary: #0052D9;
      --primary-hover: #0043b3;
      --radar-green: #10B981;
      --alert-orange: #F59E0B;
      --dark-space: #0B0F17;
      --dark-card: #111827;
      --text-main: #0F172A;
      --text-muted: #334155;
      --text-light: #64748B;
      --bg-light: #F8FAFC;
    }
    
    html {
      scroll-behavior: smooth;
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    
    .font-mono-num {
      font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    }

    .pulse-dot {
      box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
      animation: pulse-ring 2s infinite cubic-bezier(0.66, 0, 0, 1);
    }
    @keyframes pulse-ring {
      to {
        box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
      }
    }

    .card-hover {
      transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .card-hover:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 24px -10px rgba(0, 82, 217, 0.12);
    }