body{background: #d9ebfc;}
.ztr_body{background: url(../images/bdxd_bg_02.png) top center no-repeat;}
.zt_logo{padding-top: 120px;}
.zt_logo  img{display: block;margin: 0 auto;}
.zt-intro{padding: 20px 33px 15px 33px;margin-top: 115px;text-align: justify;}
.zt-intro p{line-height: 35px;font-size: 20px;text-indent: 2em;}

.bdzt-list ul li{margin-top: 20px;float: left;margin-right: 45px;}
.bdzt-list ul li a{display: block;height: 170px;opacity: 1;}
.bdzt-list ul li a:hover{opacity: .8;}
.bdzt-list ul li:nth-child(4n+4){margin-right: 0;}
.bdzt-list{margin: 40px 0 80px 0;}
.bd-ckgd{white-space: nowrap;color: red;margin: 10px 0;}

@media screen and (max-width: 800px){
.zt_logo img{width: 80%;}
.ztr_body {
    background: initial;
}
.zt-intro{margin-top: 40px;padding: 0px 33px;}
.zt_logo {
    padding-top: 40px;
}
.bdzt-list {
    margin: 0px 0 40px 0;
}
.bdzt-list ul li{margin-right: 2%;
    width: 48%;
    text-align: center;
}
.bdzt-list ul li a img{display: block;width: 80%;margin: 0 auto;}
.bdzt-list ul li a{height: auto;}
}