@charset "utf-8";

body{background: url(../images/zzqydhtyjbg.png) no-repeat center top;width: 100%;background-size: 100%;margin: 0;}
.ydh-container{width: 1300px;height: inherit;margin: 0 auto;display: block;}
ul,li,a{text-decoration: none;list-style: none;margin:0;padding: 0;}

.ydh-top{width: 100%;height: 550px;}
.ydh-top-logo{width: 100%;line-height: 160px;}
.ydh-top-logo>a{display:block;}
.ydh-top-logo>a>img{padding-top:40px;}


.ydh-main{display: block;height: 620px;position:relative;overflow:hidden;}
.ydh-main .ydh-container>ul>li{float: left;width:248px;height: 474px;margin-right: 0;}
.ydh-main .ydh-container>ul>li a{float: left;width:248px;height: 474px;}

.ydh-main .ydh-container> ul > li > a img{width:248px;height: 474px;}

.ydh-main .ydh-container>ul>li:first-child{}
.ydh-main .ydh-container>ul>li:nth-child(2n){margin-top:200px;}
.ydh-main .ydh-container>ul>li:first-child{}



.foot-wrap{background-color:#386cba;}
@media (max-width:1200px) {
    .ydh-container{width: 100%;}


    .ydh-top{height:fit-content;}
    
    .ydh-top-logo{line-height:0;}
    .ydh-top-logo>a>img{padding-top:10px;width:200px;}

    .ydh-top-main{margin-top:70px;height:20px;}
    .ydh-top-main>p{font-size:10px;line-height: 20px;width:80%;}

    .ydh-main{height:710px;}
    .ydh-main .ydh-container>ul>li{width:100% !important;float:none;height:100px;}
    .ydh-main .ydh-container>ul>li:nth-child(2n){margin-bottom:40px;}
    .ydh-main .ydh-container>ul>li>a>img{width:100%;}

    .foot-wrap{width:100%;}
    .main-m{padding:0;padding-top:40px;}


    
    
}


@media (max-width:1068px){

    .ydh-top{height:150px;}
    .ydh-main{height:fit-content;}
    .ydh-main .ydh-container>ul>li{width:50% !important;height:290px !important;float:left;}
    .ydh-main .ydh-container>ul>li a{float: left;width:100% !important;height:100% !important;}
    .ydh-main .ydh-container> ul > li > a img{width:100% !important;height:100% !important;}
    .ydh-main .ydh-container>ul>li:nth-child(2n){margin:0;float:right;}


}