body { font-family: 'Inter', system-ui, sans-serif; color: #1f2937; }
        .product-shadow { filter: drop-shadow(0 20px 25px rgba(0, 0, 0, 0.15)); }
        /* 修复 FAQ 指针显示问题 */
        details > summary { list-style: none; }
        details > summary::-webkit-details-marker { display: none; }