.ProductList_b2 ul li{float: left;width: 22.75%;margin-right: 3%;text-align: center;margin-bottom: 40px;}
.ProductList_b2 ul li .picimg{height:17.5vw;width: 100%;position: relative;    background: #fafff7;    overflow: hidden;}
.ProductList_b2 ul li .picimg img{max-width: 100%;display: block; position: absolute;top: 50%;left: 50%; max-height: 100%;width: auto;
    transform: translate(-50%, -50%);-webkit-transform: translate(-50%, -50%);}
.ProductList_b2 ul li:nth-child(4n){margin-right: 0;}
.ProductList_b2 ul li h3{font-size: 18px;margin-top: 1.5vw;
display: -webkit-box;-webkit-line-clamp: 1;-webkit-box-orient: vertical;overflow: hidden;}
.ProductList_b2 ul li span{display: none;}
@media screen and (min-width: 1024px){
    .ProductList_b2 ul li a:hover{color: #5bb425;}
}
@media screen and (max-width: 1024px){
    .ProductList_b2 ul li h3{font-size: 16px;margin: 15px 0;}
    .ProductList_b2 ul li{float: left;width: 31.3%;margin-right: 3.05%;margin-bottom: 15px;}
    .ProductList_b2 ul li .picimg{height: 28vw;}
    .ProductList_b2 ul li:nth-child(4n){margin-right: 3.05%;}
    .ProductList_b2 ul li:nth-child(3n){margin-right: 0;}
}
@media screen and (max-width: 640px){
    .ProductList_b2 ul li{width: 48.5%;margin-right: 3%;margin-bottom: 2vw;}
    .ProductList_b2 ul li .picimg{height: 46vw;}
    .ProductList_b2 ul li:nth-child(4n){margin-right: 3%;}
    .ProductList_b2 ul li:nth-child(3n){margin-right: 3%;}
    .ProductList_b2 ul li:nth-child(2n){margin-right: 0;}
    .ProductList_b2 ul li h3{font-size: 3.8vw;margin: 2vw 0;}

}