/* 呼吸灯效果 */
        @keyframes breathe {
            0%, 100% { box-shadow: 0 0 15px rgba(37, 99, 235, 0.2); transform: scale(1); }
            50% { box-shadow: 0 0 25px rgba(37, 99, 235, 0.4); transform: scale(1.01); }
        }
        .product-glow {
            animation: breathe 4s infinite ease-in-out;
        }
        /* 手风琴动画 */
        details > summary { list-style: none; }
        details > summary::-webkit-details-marker { display: none; }
        details[open] summary ~ * { animation: slideDown 0.3s ease-in-out; }
        @keyframes slideDown {
            0% { opacity: 0; transform: translateY(-10px); }
            100% { opacity: 1; transform: translateY(0); }
        }