@media (max-width:768px){.head_nav>li:nth-child(2)>ul>li>ul.open{opacity:1}.product-sub-toggle{position:absolute;right:15px;top:50%;transform:translateY(-50%);width:24px;height:24px;line-height:24px;text-align:center;font-size:20px;font-weight:700;cursor:pointer;z-index:99999;user-select:none;-webkit-user-select:none}}