.main,.main-case-list{overflow:hidden}.main-banner,.main-case-item,.main-nav-img,.main-partner-img{background-repeat:no-repeat;background-position:center}.main-banner{width:1200px;height:0;padding-bottom:460px;margin-top:20px;margin-bottom:66px;background-image:url(../img/index/pic_h.png)}.main-nav{display:-webkit-box;display:-ms-flexbox;display:flex;margin-bottom:195px}.main-nav-item{-webkit-box-flex:1;-ms-flex:1;flex:1}.main-nav-img{width:150px;height:150px;margin:0 auto 34px}.main-nav>li p,.main-title{width:100%;text-align:center;color:#313131}.main-nav-img1{background-image:url(../img/index/ic_h_rj.png)}.main-nav-img2{background-image:url(../img/index/ic_h_gw.png)}.main-nav-img3{background-image:url(../img/index/ic_h_wx.png)}.main-nav-img4{background-image:url(../img/index/ic_h_ht.png)}.main-nav>li p{-webkit-box-sizing:border-box;box-sizing:border-box;padding:0 78px;font-size:24px}.main-title{margin-bottom:96px;font-size:42px}.main-case{margin-bottom:215px}.main-case-item{float:left;width:595px;height:382px;margin-bottom:10px}.main-case-item:nth-of-type(2n+1){margin-right:10px}.main-case-item:nth-of-type(1){background-image:url(../img/index/pic_mh.png)}.main-case-item:nth-of-type(2){background-image:url(../img/index/pic_ht.png)}.main-case-item:nth-of-type(3){background-image:url(../img/index/pic_dsj.png)}.main-case-item:nth-of-type(4){background-image:url(../img/index/pic_wx.png)}.main-case-item:nth-of-type(5){background-image:url(../img/index/pic_tv.png)}.main-case-item:nth-of-type(6){background-image:url(../img/index/pic_ksh.jpg)}.main-case-item a{display:block;width:100%;height:100%}.main-partner{margin-bottom:210px}.main-partner-list{display:-webkit-box;display:-ms-flexbox;display:flex}.main-partner-item{-webkit-box-flex:1;-ms-flex:1;flex:1}.main-partner-img{width:227px;height:112px;margin:0 auto;-webkit-box-shadow:5px 5px 10px #ccc;box-shadow:5px 5px 10px #ccc}.main-partner-item:nth-of-type(1) .main-partner-img{background-image:url(../img/index/ic_partner_jwys.png)}.main-partner-item:nth-of-type(2) .main-partner-img{background-image:url(../img/index/ic_partner_vst.png)}