@keyframes breathing {
            0%, 100% { transform: scale(1); box-shadow: 0 0 20px rgba(59, 130, 246, 0.3); }
            50% { transform: scale(1.02); box-shadow: 0 0 40px rgba(59, 130, 246, 0.6); }
        }
        .hero-img { animation: breathing 4s ease-in-out infinite; }
        .bg-blue-50 { background-color: #f8fafc; border-left: 4px solid #3b82f6; }