@media only screen and (max-width:1900px ) {
	.contain_about_left h5{
		margin-top:11rem;
	}
	.chose_right>p{
		margin-top:4.5rem;
	}
	.chose_right_contain{
		margin-top:6.5rem;
	}
}
@media only screen and (max-width:1890px ) {
	.contain_about_left h5{
		margin-top:10.5rem;
	}
	.chose_right>p{
		margin-top:4rem;
	}
	.chose_right_contain{
		margin-top:6rem;
	}
}
@media only screen and (max-width:1860px ) {
	.contain_about_left p{
		margin-top:12rem;
	}
}
@media only screen and (max-width:1850px ) {
	.contain_about_left p{
		line-height: 2.9rem;
	}
	.index_product_bottom p{
		margin-top:11rem;
	}
	.foot_left{
		width: 30%;
	}
	.foot_right{
		margin-left: 15%;
	}
	.about_guanyu p{
		margin-top:-43rem;
	}
	.about_guanyu .about_guanyu_h3_img{
		margin-top:-21rem;
	}
	.chose_right_contain_left p{
		margin-bottom: 8.4rem;
	}
	.chose_right_contain{
		padding: 10rem 0;
	}
}
@media only screen and (max-width:1840px ) {
	.chose_right_contain{
		padding: 9.5rem 0;
	}
}
@media only screen and (max-width:1840px ) {
	.chose_right_contain{
		padding: 9rem 0;
	}
}
@media only screen and (max-width:1830px ) {
	.contain_about_left p{
		margin-top:11.5rem;
	}
	.contain_about h1{
		width: 28%;
	}
}
@media only screen and (max-width:1810px ) {
	.contain_about_left p{
		margin-top:11rem;
	}
}
@media only screen and (max-width:1800px) {
	.index_product_left h1{
		margin-top:7rem;
	}
	.index_product_left_a{
		margin-top:8rem;
	}
	.product_case_left{
		padding: 4.5rem 0;
	}
	.index_product_kuang{
		margin-left: 81%;
	}
	.contain_about_left h5{
		margin-top:10rem;
	}
	.index_product_right{
		margin-top:24.5rem;
	}
	.index_product_left{
		margin-top:41rem;
	}
	.index_product_bottom p{
		margin-top:10.5rem;
	}
	.index_product_bottom h5{
		margin-top:31rem;
	}
	.index_case a{
		width: 6%;
		margin: 50px 47% 0;
	}
	.about_guanyu p{
		margin-top:-42rem;
	}
	.about_guanyu .about_guanyu_h3_img{
		margin-top:-20.5rem;
	}
	.chose_right>p{
		margin-top:3.7rem;
	}
	.chose_right_contain{
		margin-top:5.7rem;
	}
}
@media only screen and (max-width:1790px ) {
	.contain_about_left h5{
		width: 70%;
	}
	.contain_about_left p{
		line-height: 2.85rem;
	}
	
}
@media only screen and (max-width:1780px ) {
	.contain_about_left p{
		margin-top:10.5rem;
	}
	.chose_right>p{
		margin-top:3.5rem;
	}
	.chose_right_contain{
		margin-top:5.5rem;
	}
}
@media only screen and (max-width:1770px ) {
	.contain_about_left p{
		margin-top:10rem;
	}
	.chose_right_contain{
		padding: 8.7rem 0;
	}
}
@media only screen and (max-width:1760px ) {
	.contain_about_left h5{
		margin-top:10rem;
	}
	.chose_right_contain{
		padding: 8.6rem 0;
	}
	.chose_right>p{
		margin-top:3.3rem;
	}
	.chose_right_contain{
		margin-top:5.3rem;
	}
}
@media only screen and (max-width:1750px ) {
	
	.new_img{
		width: 9%;
	}
	.contain_about_left h5{
	    margin-top:9.8rem;
	}
	.index_product_left p{
		width: 80%;
	}
	.index_product_right{
		margin-top:24rem;
	}
	.index_product_left{
		margin-top:40.5rem;
	}
	.index_product_left_a{
		width: 25%;
	}
	.index_product_bottom p{
		margin-top:10rem;
	}
	.index_product_bottom h5{
		margin-top:30rem;
	}
	.about_guanyu p{
		margin-top:-41rem;
	}
	.about_guanyu .about_guanyu_h3_img{
		margin-top:-20rem;
	}
	.about_bottom_right h1{
		margin-top:8rem;
	}
}
@media only screen and (max-width:1740px ) {
	.contain_about_left h5{
	    margin-top:9.5rem;
	}
	.chose_right_contain{
		padding: 8.2rem 0;
	}
}
@media only screen and (max-width:1730px ) {
	.contain_about_left p{
		margin-top:9.8rem;
	}
	.chose_right_contain_right p{
		width: 80%;
	}
	.chose_right_contain{
		padding: 8rem 0;
	}
}
@media only screen and (max-width:1720px ) {
	.contain_about_left p{
		margin-top:9.5rem;
	}
	.chose_right_contain_right h1{
		margin-top:3rem;
	}
	.chose_right_contain_left p{
		margin-top:33rem;
	}
}
@media only screen and (max-width:1710px ) {
	.contain_about_left h5{
		margin-top:9.2rem;
	}
}
@media only screen and (max-width:1700px ) {
	.contain_about_left hr{
		margin:20px 90% 80px 0;
	}
	.index_product_kuang{
		margin-top:28rem;
	}
	.index_product_left p{
		width: 85%;
	}
	.product_case_left{
		padding: 4.2rem 0;
	}
	.index_case p{
		width: 60%;
		margin: 30px 20%;
	}
	.case_contain>ul>li>a>img{
		height: 33rem;
	}
	.a1 .fuzhao{
		height: 33rem;
		margin-top:-33rem;
	}
	.a2 .fuzhao{
		height: 33rem;
		margin-top:-33rem;
	}
	.contain_about_left h5{
		margin-top:8.9rem;
	}
	.index_product_right{
		margin-top:23rem;
	}
	.index_product_left{
		margin-top:37rem;
	}
	.index_product_bottom p{
		margin-top:9rem;
	}
	.index_product_bottom h5{
		margin-top:29.5rem;
	}
	.foot_left>img{
		margin-top:6rem;
	}
	.about_guanyu p{
		margin-top:-40rem;
	}
	.about_guanyu .about_guanyu_h3_img{
		margin-top:-19.5rem;
	}
	.product_banner{
		width: 70%;
		margin-left: 15%;
	}
	.nav_news h1 .news_span{
		margin-top:-0.5rem;
	}
}
@media only screen and (max-width:1690px ) {
	.contain_about_left h5{
		margin-top:8.6rem;
	}
}
@media only screen and (max-width:1680px ) {
	.contain_about_left p{
		margin-top:9.2rem;
	}
	.chose_right_contain_right span{
		margin-bottom: 4.3rem;
	}
	.chose_right_contain_left p{
		margin-bottom: 8rem;
	}
}
@media only screen and (max-width:1670px ) {
	.contain_about_left p{
		margin-top:8.8rem;
	}
	.chose_right_contain_right h3{
		margin-top:5rem;
	}
	.chose_right_contain_left p{
		margin-top: 32rem;
	}
}
@media only screen and (max-width:1650px ) {
	.contain_about h1{
		margin-top:6.5rem;
	}
	.contain_about_left{
		margin-top:14.5rem;
	}
	.contain_about_left h5{
		margin-top:10rem;
	}
	.index_product_right{
		margin-top:22.5rem;
	}
	.index_product_left{
		margin-top: 35rem;
	}
	.index_product_bottom p{
		margin-top:8rem;
	}
	.index_product_bottom h5{
		margin-top:28rem;
	}
	.about_guanyu p{
		margin-top:-39rem;
	}
	.about_guanyu .about_guanyu_h3_img{
		margin-top:-19rem;
	}
	.about_bottom_right p{
		width: 60%;
	}
	.chose_right_contain_right p{
		margin: 1rem 10% 6rem 10%;
	}
	.chose_right_contain_left p{
		margin-top:31rem;
	}
}
@media only screen and (max-width:1640px ) {
	.contain_about_left h5{
		margin-top:9.7rem;
	}
	.contain_about h1{
		margin-left: 14%;
	}
	.contain_about_left h3{
		margin-left: 40%;
	}
	.contain_about_left p{
		margin-left: 40%;
	}
	.contain_about_left h5{
		margin-left: 40%;
		width: 60%;
	}
}
@media only screen and (max-width:1630px ) {
	.contain_about_left h5{
		margin-top:9.5rem;
	}
	.chose_right_contain_right h1{
		font-size: 2.5rem;
	}
	.chose_right_contain_left p{
		margin-top:30.2rem;
	}
}
@media only screen and (max-width:1620px ) {
	.contain_about_left h5{
		margin-top:9rem;
	}
	.chose_right_contain_right p{
		margin: 1rem 10% 3.8rem 10%;
	}
}
@media only screen and (max-width:1610px ) {
	.contain_about h1{
		width: 30%;
	}
	.contain_about_left h5{
		margin-top:8.8rem;
	}
	.chose_right_contain_right h3{
		margin-top:3rem;
	}
	.chose_right_contain_left p{
		margin-top:28.15rem;
	}
}
@media only screen and (max-width:1600px ) {
	.about_contain{
		width: 80%;
		margin: 150px 8%;
	}
	.chose_right>p{
		width: 60%;
	}
	.index_product_kuang{
		margin-top:26rem;
	}
	.index_product_left h1{
		margin-top:4rem;
	}
	.product_case_left{
		padding: 3.8rem 0;
	}
	.guanyu_left h3{
		margin-top:15rem;
	}
	.jianjie_title p{
		margin-top:2rem;
	}
	.jianjie_img img:first-child{
		margin-left: 32%;
		margin-top:9rem;
	}
	.jianjie_img img{
		width: 40%;
	}
	.about_bottom_right h1{
		margin-top:7rem;
	}
	.news_contain{
		width: 70%;
		margin-left: 15%;
	}
	.nav_news{
		width: 80%;
		margin-left: 10%;
	}
	.case_contain>ul>li>a>img{
		height: 31.5rem;
	}
	.a1 .fuzhao{
		height: 31.5rem;
		margin-top:-31.5rem;
	}
	.a2 .fuzhao{
		height: 31.5rem;
		margin-top:-31.5rem;
	}
	.contain_about_left p{
		margin-top:8.5rem;
	}
    .index_product_left_a{
    	margin-top:6rem;
    }
    .index_product_bottom p{
		margin-top:7.5rem;
	}
	.index_product_bottom h5{
		margin-top:27rem;
	}
	.index_case a{
		width: 7%;
		margin: 50px 46.5% 0;
	}
	.foot_center{
		width: 33%;
		margin-left: 12%;
	}
	.foot_right img{
		width: 90%;
		margin-left: 5%;
	}
	.about_guanyu p{
		margin-top:-38rem;
		line-height: 2.8rem;
	}
	.about_guanyu .about_guanyu_h3_img{
		margin-top:-18.5rem;
		width: 8%;
	}
	.about_bottom_right p{
		margin-top:3rem;
	}
}
@media only screen and (max-width:1590px ) {
	.contain_about_left h5{
		margin-top:8.5rem;
	}
}
@media only screen and (max-width:1580px ) {
	.contain_about_left h5,.contain_about_left p{
		margin-top:8.3rem;
	}
}
@media only screen and (max-width:1570px ) {
	.contain_about_left h5,.contain_about_left p{
		margin-top:8.2rem;
	}
	.chose_right_contain_right h1{
		font-size: 2.3rem;
	}
	.chose_right_contain_left p{
		margin-bottom: 7.3rem;
	}
}
@media only screen and (max-width:1560px ) {
	.contain_about_left h5,.contain_about_left p{
		margin-top:8.1rem;
	}
}
@media only screen and (max-width:1550px ) {
	.header .nav ul>li>a{padding: 0 30px;}
	
	.index_product_kuang{
		width: 6%;
		margin-left: 80%;
	}
	.contain_about_left h5,.contain_about_left p{
		margin-top:8rem;
	}
	.index_product_left p{
		width: 90%;
	}
	.index_product_right{
		margin-top:21.5rem;
	}
	.index_product_bottom p{
		margin-top:7rem;
	}
	.index_product_bottom h5{
		margin-top:26.5rem;
	}
	.foot_left{
		width: 35%;
	}
	.foot_right{
		margin-left: 10%;
	}
	.foot_left>img{
		margin-top:5rem;
	}
	.about_guanyu p{
		margin-top:-37rem;
	}
	.about_guanyu .about_guanyu_h3_img{
		margin-top:-18rem;
	}
	.about_bottom_right h1{
		margin-top:6rem;
	}
	.chose_right_contain_right p{
		line-height: 2rem;
	}
	.chose_right_contain_left p{
		margin-bottom: 6.3rem;
	}
}
@media only screen and (max-width:1540px ) {
	.contain_about h1{
		width: 32%;
		margin-left: 13%;
	}
	.contain_about_left h3{
		margin-left: 37%;
	}
	.contain_about h1{
		margin-top:5.5rem;
	}
	.contain_about_left{
		margin-top:13rem;
	}
	.contain_about_left h5, .contain_about_left p{
		margin-left: 37%;
        margin-top:8.5rem;
	}
}
@media only screen and (max-width:1530px ) {
	.contain_about_left h5, .contain_about_left p{
		margin-top:8.35rem;
	}
	.chose_right_contain{
		margin-top:5rem;
	}
	.chose_right>p{
		margin-top:3rem;
	}
}
@media only screen and (max-width:1520px ) {
	.contain_about_left h5, .contain_about_left p{
		margin-top:8.2rem;
	}
}
@media only screen and (max-width:1510px ) {
	.contain_about_left h5, .contain_about_left p{
		margin-top:8.05rem;
	}
	.chose_right_contain_right h1{
		font-size: 2.1rem;
	}
	.chose_right_contain_left p{
		margin-bottom: 6rem;
		margin-top:27.7rem;
	}
}
@media only screen and (max-width:1500px ) {
	.index_product_left p{
		width: 95%;
	}
	.index_product_left_a{
		margin-top:5rem;
	}
	.index_product_kuang{
		margin-top:23rem;
	}
	.product_case_left{
		padding: 3.4rem 0;
	}
	.guanyu_left ul{
		margin-top:6rem;
	}
	.guanyu_left h3{
		margin-top:13rem;
	}
	.contact_banner h1{
		margin-top:21rem;
	}
	.contact_center_left>img{
		margin-top:4rem;
		width: 18%;
	}
	.product_banner_left h1{
		font-size: 4.5rem;
	}
	.case_contain>ul>li>a>img{
		height: 28.5rem;
	}
	.a1 .fuzhao{
		height: 28.5rem;
		margin-top:-28.5rem;
	}
	.a2 .fuzhao{
		height: 28.5rem;
		margin-top:-28.5rem;
	}
	.contain_about_left h5, .contain_about_left p{
		margin-top:7.9rem;
	}
	.contain_about_left h5{
		width: 65%;
	}
	.index_product_right{
		margin-top:20rem;
	}
	.index_product_left{
		margin-top:32rem;
	}
    .index_product_bottom p{
		margin-top:6.5rem;
	}
	.index_product_bottom h5{
		margin-top:25.5rem;
	}
	.about_guanyu p{
		margin-top:-36rem;
	}
	.about_guanyu .about_guanyu_h3_img{
		margin-top:-17.5rem;
		width: 8.5%;
	}
	.about_guanyu p{
		line-height: 2.5rem;
	}
	.about_bottom_right p{
		line-height: 2.5rem;
	}
	.chose_right>p{
		margin-top: 2.7rem;
	}
	.chose_right_contain{
		margin-top:4.7rem;
	}
}
@media only screen and (max-width:1490px ) {
	.contain_about_left h5, .contain_about_left p{
		margin-top:7.75rem;
	}
}
@media only screen and (max-width:1480px ) {
	.contain_about_left h5, .contain_about_left p{
		margin-top:7.6rem;
	}
	.chose_right>p{
		margin-top: 2.4rem;
	}
	.chose_right_contain{
		margin-top:4.4rem;
	}
}
@media only screen and (max-width:1470px ) {
	.contain_about_left h5, .contain_about_left p{
		margin-top:7.45rem;
	}
	.chose_right>p{
		margin-top: 2.1rem;
	}
	.chose_right_contain{
		margin-top:4.1rem;
	}
}
@media only screen and (max-width:1460px ) {
	.contain_about h1{
		margin-left: 12%;
		width: 34%;
	}
	.contain_about_left h3{
		margin-left: 34%;
	}
	.contain_about_left h5, .contain_about_left p{
		margin-left: 34%;
		margin-top:7.6rem;
	}
	.contain_about h1{
		margin-top:5rem;
	}
	.contain_about_left{
		margin-top:12.5rem;
	}
	.chose_right>p{
		margin-top: 1.8rem;
	}
	.chose_right_contain{
		margin-top:3.8rem;
	}
}
@media only screen and (max-width: 1450px) {
	.jianjie_title p{
		width: 100%;
	}
	.about_bottom_right p{
		margin-top:2rem;
	}
	.about_bottom_right h1{
		margin-top:5rem;
	}
	.contact_banner h1{
		font-size: 3.5rem;
	}
	.contact_center_left>img{
		width: 20%;
	}
	.banner_right_a a{
		padding: 0.5rem 1.5rem;
	}
	.contain_about_left h5, .contain_about_left p{
		margin-top:7.45rem;
	}
	.index_product_left h3{
		padding: 1rem 0 3rem 0;
	}
	.index_product_left p{
		margin-top:2.5rem;
	}
	.index_product_bottom p{
		width: 60%;
		margin: 0 20%;
		margin-top:6rem;
	}
	.index_product_bottom h5{
		margin-top:24rem;
	}
	.foot_right{
		width: 12%;
	}
	.foot_center{
		margin-left: 10%;
	}
	.foot_right img{
		width: 80%;
		margin:0px auto;
		text-align: center;
		float: unset;
	}
	.about_guanyu p{
		margin-top:-35rem;
	}
	.about_guanyu .about_guanyu_h3_img{
		margin-top:-17rem;
	}
	.chose_right_contain_left p{
		width: 35%;
	}
	.product_banner_left{
		width: 45%;
	}
	.product_banner_left h3{
		width: 25%;
	}
	.product_banner_right{
		width: 55%;
	}
}
@media only screen and (max-width:1440px ) {
	.contain_about_left p{
		line-height: 2.75rem;
	}
	.chose_right_contain{
		padding: 7.5rem 0;
	}
}
@media only screen and (max-width:1430px ) {
	.contain_about_left p{
		line-height: 2.7rem;
	}
}
@media only screen and (max-width:1420px ) {
	.contain_about_left p{
		line-height: 2.65rem;
	}
	.chose_right_contain_right h3{
		margin-top:2rem;
	}
	.chose_right_contain_left p{
		margin-top:26.7rem;
	}
}
@media only screen and (max-width:1410px ) {
	.contain_about h1{
		margin-left: 10%;
	}
	.contain_about_left h3{
		margin-left: 28.5%;
	}
	.contain_about_left h5, .contain_about_left p{
		margin-left: 28.5%;
		margin-top:7.35rem;
	}
}
@media only screen and (max-width:1400px) {
	.header .nav ul>li>a {
		padding: 0 30px;
	}
	.contain_about h1{
		font-size: 5rem;
	}
	.contain_about_left hr{
		margin:20px 90% 70px 0;
	}
	.index_product_left_a{
		width: 25%;
	}
	.index_product_left p{
		width: 100%;
	}
	.index_product_kuang{
		margin-top:20rem;
	}
	.product_case_left{
		padding: 3rem 0;
	}
	.guanyu_left ul{
		margin-top:4rem;
	}
	.guanyu_left h1{
		font-size: 3.5rem;
	}
	.about_bottom_right p{
		width: 65%;
	}
	.contact_center_right img{
		width: 40%;
	}
	.case_contain>ul>li>a>img{
		height: 27rem;
	}
	.a1 .fuzhao{
		height: 27rem;
		margin-top:-27rem;
	}
	.a2 .fuzhao{
		height: 27rem;
		margin-top:-27rem;
	}
	.case_contain ul li h5{
		letter-spacing: 1px;
	}
	.contain_about_left h5, .contain_about_left p{
		margin-top:7.2rem;
	}
	.index_product_right{
		margin-top:19rem;
	}
	.index_product_left_a{
		width: 30%;
	}
	.index_product_bottom p{
		margin-top:5.5rem;
	}
	.index_product_bottom h5{
		margin-top:23rem;
	}
	.about_guanyu p{
		margin-top:-34rem;
		line-height: 2.3rem;
	}
	.about_guanyu .about_guanyu_h3_img{
		margin-top:-16.5rem;
		width: 9%;
	}
	.about_bottom_right h3{
		padding: 1.5rem 0;
	}
	.chose_right_contain{
		padding: 7rem 0;
	}
}
@media only screen and (max-width:1390px ) {
	.contain_about_left h5{
		width: 70%;
	}
	.contain_about_left h5, .contain_about_left p{
		margin-top:7.05rem;
	}
}
@media only screen and (max-width:1380px ) {
	.contain_about_left h5, .contain_about_left p{
		margin-top:6.95rem;
	}
	.chose_right_contain_right p{
		line-height: 1.75rem;
	}
	.chose_right_contain_right span{
		margin-bottom: 4.1rem;
	}
	.chose_right_contain{
		padding: 6.5rem 0;
	}
}
@media only screen and (max-width:1370px ) {
	.contain_about h1{
		width: 36%;
	}
	.contain_about_left h5, .contain_about_left p{
		margin-top:6.85rem;
	}
}
@media only screen and (max-width:1360px ) {
	.contain_about_left p{
		line-height: 2.5rem;
	}
}
@media only screen and (max-width:1350px ) {
    .foot_center{
    	width: 35%;
    	margin-left: 8%;
    }
    .foot_left{
    	width: 40%;
    }
    .foot_right{
    	margin-left: 5%;
    }
	.contain_about_left p{
		width: 90%;
		margin-right: 10%;
	}
	.jianjie_img img:first-child{
		margin-left: 23%;
	}
	.jianjie_img img{
		width: 46%;
	}
	.new_img{
		width: 10%;
	}
	.case_contain1 h1{
		font-size: 2.8rem;
	}
	.index_product_kuang{
		width: 6.5%;
		margin-left: 79%;
	}
	.contain_about h1{
		font-size: 4.5rem;
		width: 33%;
	}
	.contain_about_left{
		margin-top:12rem;
	}
	.index_product_right{
		margin-top:18.5rem;
	}
	.index_product_left{
		margin-top:28rem;
	}
	.index_product_bottom p{
		margin-top:5rem;
	}
	.index_product_bottom h5{
		margin-top:22rem;
	}
	.about_guanyu p{
		margin-top:-33rem;
	}
	.about_guanyu .about_guanyu_h3_img{
		margin-top:-16rem;
	}
	.chose_right_contain{
		padding: 6rem 0;
	}
}
@media only screen and (max-width:1340px ) {
	.chose_right_contain_right h1{
		font-size: 1.9rem;
	}
	.chose_right_contain_right h3{
		font-size: 1.8rem;
	}
	.chose_right_contain_left p{
		margin-top:25.8rem;
	}
	.chose_right>p{
		width: 65%;
	}
}
@media only screen and (max-width:1330px ) {
	.contain_about_left h5, .contain_about_left p{
		margin-top:6.65rem;
	}
}
@media only screen and (max-width:1320px ) {
	.header .nav ul>li>a{padding: 0 20px;}
	.contain_about_left h5, .contain_about_left p{
		margin-top:6.5rem;
	}
}
@media only screen and (max-width:1310px ) {
	.contain_about_left h5, .contain_about_left p{
		margin-top:6.35rem;
	}
	.chose_right_contain{
		padding: 5.7rem 0;
	}
}
@media only screen and (max-width:1300px ) {
	.index_product_kuang{
		margin-top:18rem;
	}
	.index_product_left h3{
		padding: 1rem 0 2rem 0;
	}
	.index_product_left h1{
		margin-top:2rem;
		font-size: 2.5rem;
	}
	.index_product_left p{
		line-height: 2rem;
	}
	.index_product_left_a{
		margin-top:3rem;
	}
	.product_case_left{
		padding: 2.7rem 0;
	}
	.guanyu_left p{
		margin-top:10rem;
	}
	.case_contain{margin: 20px 5% 20px 5%;}
	.case_contain h1{width:100%;margin-left:0px;}
	.case_contain>p{width:100%;margin: 10px 0 20px 0;}
	.case_contain>ul>li{width:100%;margin-right:0px}

	.case_contain>ul>li>a>img{
		height: 25rem;
	}
	.a1 .fuzhao{
		height: 25rem;
		margin-top:-25rem;
	}
	.a2 .fuzhao{
		height: 25rem;
		margin-top:-25rem;
	}
	.contain_about_left h5, .contain_about_left p{
		margin-top:6.2rem;
	}
	.index_product_bottom p{
		margin-top:4.5rem;
	}
	.index_product_bottom h5{
		margin-top:21rem;
	}
	.index_case a{
		width: 8%;
		margin: 50px 46% 0;
	}
	.about_guanyu p{
		margin-top:-32rem;
		line-height: 2rem;
	}
	.about_guanyu .about_guanyu_h3_img{
		margin-top:-15.5rem;
		width: 9.5%;
	}
	.about_bottom_right p{
		width: 70%;
	}
	.chose_right_contain{
		padding: 5.5rem 0;
	}
}
@media only screen and (max-width:1290px ) {
	.contain_about_left h5, .contain_about_left p{
		margin-top:6rem;
	}
	.contain_about h1{
		margin-top:4rem;
	}
	.contain_about_left{
		margin-top:11rem;
	}
	.contain_about_left h5, .contain_about_left p{
		margin-top:6.5rem;
	}
}
@media only screen and (max-width:1280px ) {
	.contain_about h1{
		margin-left: 9%;
	}
	.contain_about_left h3{
		margin-left: 26%;
	}
	.contain_about_left h5{
		width: 80%;
	}
	.contain_about_left h5, .contain_about_left p{
		margin-top:6.5rem;
		margin-left: 26%;
	}
}
@media only screen and (max-width:1260px ) {
	.contain_about_left h5, .contain_about_left p{
		margin-top:6rem;
	}
}

.pc{display:block;}
.wap{display:none;}
@media only screen and (max-width:1280px ) {
	.pc{display:none;}
    .wap{display:block;}
	.header{height:6rem;}
	.header .wid{padding:0px 0px 0px 10px;}
	.header .wid img{width:auto;height:24px;}
	.header .search{top:30%;}
	.pcbanner{margin-top:6rem;}
	.index_about {padding-top:30px;padding-bottom:0px;}
	.contain_about_right{width:100%;float:unset;}
	.contain_about h1{position:unset;width:90%;font-size:2rem;margin-left:5%;margin-right:5%;margin-top:10px;}
	.contain_about_left{width:100%;margin-top:0;}
	.contain_about_left h3{margin-left:5%;margin-right:5%;}
	.contain_about_left h5, .contain_about_left p{margin-left:5%;margin-right:5%;margin-top:1rem;}
	.contain_about_left2{width:100%;float:unset;}
	.contain_about2 h1{position:unset;width:90%;font-size:2rem;margin-left:5%;margin-right:5%;margin-top:10px;justify-content:start;}
	.contain_about2 h1 img{width:auto;height:18px;margin-left:10px;}
	.contain_about_right2{width:100%;margin-top:0;}
	.contain_about_right2 h3{width:90%;margin-left:5%;margin-right:5%;text-align: left;}
	.contain_about_right2 h5, .contain_about_right2 p{width:90%;margin-left:5%;margin-right:5%;margin-top:1rem;text-align:left;}
	.index_product_bottom{margin-top:30px;background-size:cover;}
	.index_product_bottom p{width:90%;margin-left:5%;margin-right:5%;}
	.index_product_bottom h5 {letter-spacing:4px;}
	.index_material_science{margin:50px auto;}
	.index_material_science>div{margin-bottom:10px;width:calc(50% - 5px);}
	.index_banner p{letter-spacing:4px;}
	.index_case h1{width:90%;margin-left:5%;margin-right:5%;font-size: 3rem;}
	.index_case h4{font-size:1.5rem;}
	.index_case p{width:90%;margin-left:5%;margin-right:5%}
	.index_case a{width:90px;margin-left:calc(50% - 45px);margin-top:0px;}
	footer{width:100%;padding:20px 5% 10px;}
	.foot_left{width:50%;}
	.foot_left>img{margin-top:3rem;}
	.foot_right{width:30%;float:right;}
	.foot_center{width:100%;margin:20px 0px 0px;}
	.foot_center ul li {margin-bottom:10px;}
	.foot_center ul li a{font-size:1.2rem;}
	.sub_page,.sub_page_blank{margin-top:6rem;}
	.page{width:90%;margin:0 auto 0 auto;}
}