/* 呼吸灯/阴影特效 */
        @keyframes breath {
            0% { transform: scale(1); box-shadow: 0 10px 20px rgba(0,0,0,0.05); }
            50% { transform: scale(1.02); box-shadow: 0 20px 40px rgba(234, 179, 8, 0.2); }
            100% { transform: scale(1); box-shadow: 0 10px 20px rgba(0,0,0,0.05); }
        }
        .animate-breath {
            animation: breath 4s infinite ease-in-out;
            transition: all 0.3s ease;
        }