/* 五大核心能力：悬停呼吸灯 */
.product-card{transition:transform .32s ease,box-shadow .32s ease;will-change:transform}.product-card .card-line{transition:filter .32s ease}.product-card:hover{animation:product-breathe 1.8s ease-in-out infinite;box-shadow:0 14px 30px rgba(33,111,167,.22);z-index:1}.product-card:hover .card-line{filter:brightness(1.14) drop-shadow(0 0 8px rgba(33,111,167,.72))}.accent-card:hover{box-shadow:0 14px 30px rgba(255,109,18,.25)}.accent-card:hover .card-line{filter:brightness(1.05) drop-shadow(0 0 8px rgba(255,109,18,.72))}@keyframes product-breathe{0%,100%{transform:translateY(-3px)}50%{transform:translateY(-7px)}}@media(max-width:760px){.product-card:hover{animation:none;transform:translateY(-3px)}}