.ProductList_b1 ul li { width: 32%; margin-right: 2%; margin-bottom: 30px; overflow: hidden; float: left; box-sizing: border-box; padding: 3.6vw; background: url(../images/pbg.jpg) no-repeat; background-size: cover; text-align: center; position: relative; }
.ProductList_b1 a { display: block; }
.ProductList_b1 .picimg { width : 100%; margin-bottom: 1.5vw; height: 25.5vw; position: relative; overflow: hidden; display: block; }
.ProductList_b1 .picimg img { max-width: 100%; display: block; max-height: 100%; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); -webkit-transform: translate(-50%, -50%); }
.ProductList_b1 ul li:nth-child(3n) { margin-right: 0; }
.ProductList_b1 h3, .ProductList_b1 li span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; line-height: 1.15; margin: 0 auto; }
.ProductList_b1 h3 { color: #333333; font-size: 2vw; font-family: noto, "宋体"; font-weight: bold; margin-bottom: 1vw; }
.ProductList_b1 li span { color: #666666; font-size: 18px; text-transform: capitalize; }
.ProductList_b1 ul li .btn { content: "查看详情"; width: 13vw; height: 2.8vw; line-height: 2.8vw; background-color: #333333; color: #fff; font-size: 14px; display: block; margin: 0 auto; text-align: center; border-radius: 5px; }
.ProductList_b1 ul li:hover .btn { background-color: #53765d; }
@media screen and (max-width: 1024px) {
.ProductList_b1 ul li { margin-bottom: 20px; }
.ProductList_b1 h3 { font-size: 2.8vw; }
.ProductList_b1 ul li .btn { line-height: 1.0; padding: 10px 0; height: auto; }
}
@media screen and (max-width: 640px) {
.ProductList_b1 { margin-top: 5vw; }
.ProductList_b1 ul li { width: 48.5%; margin-right: 3%; padding-top: 6vw; padding-bottom: 0; }
.ProductList_b1 h3 { font-size: 4.2vw; }
.ProductList_b1 ul li:nth-child(3n) { margin-right: 3%; }
.ProductList_b1 ul li:nth-child(2n) { margin-right: 0; }
.ProductList_b1 li span { font-size: 3.2vw; }
.ProductList_b1 ul li .btn { display: none; }
.ProductList_b1 .picimg { height: 43.5vw; }
}