/* 呼吸灯阴影特效 */
        @keyframes breathe {
            0% { box-shadow: 0 0 15px rgba(59, 130, 246, 0.2); transform: translateY(0px); }
            50% { box-shadow: 0 0 35px rgba(59, 130, 246, 0.6); transform: translateY(-5px); }
            100% { box-shadow: 0 0 15px rgba(59, 130, 246, 0.2); transform: translateY(0px); }
        }
        .breathe-effect {
            animation: breathe 4s infinite ease-in-out;
            border-radius: 1rem;
        }