.clear{margin:0; overflow:hidden; visibility:hidden; font-size: 0; content: "."; clear: both; height: 0; padding:0;}
.clearfix:after{visibility:hidden; display: block; font-size: 0; content:" "; clear:both; height:0;}
body{background-color: #fff;}

.headerbox{width: 100%;height: 700px;background: url(../images/home/banner.png) top center no-repeat;text-align: center;}
.core{width: 1280px;margin: 0 auto;}
.tophead{padding-top: 30px;margin-bottom: 60px;}
.tophead img{float: left;width: 340px;}
.tophead a{float: right;padding: 0 20px !important; height: 52px;background-color: rgba(0, 0, 0, 0.2) !important;border-radius: 6px !important;text-align: center;line-height: 52px;font-size: 20px;color: #fff;margin-left: 10px;margin-top: 8px;font-weight: normal !important;}
.tophead a:hover{color: #fff;}
.title{margin-bottom: 60px;}
.tishi{width: 100%;height: 200px;background: url(../images/home/kuang.png) top center no-repeat;text-align: center;line-height: 40px;padding: 60px 56px 0;text-indent: 2em;font-size: 18px;box-sizing: border-box;}

.mainbody{padding-top: 50px;}
.catalogue{margin-bottom: 60px;}
.titlebox{width: 100%; height: 40px;border-bottom: 1px solid #ddd;line-height: 1;background: url(../images/home/bian.png) left top no-repeat;padding-left: 20px;box-sizing: border-box;font-size: 24px;font-weight: bold;color: #3d3d3d;}
.titlebox a{color: #3d3d3d;}

.catalogue ul li{width: 296px;height: 68px;background-color: #f7f7f7;border-radius: 8px;box-sizing: border-box;font-size: 18px;text-align: center;line-height: 68px;float: left;margin: 30px 32px 0 0;}
.catalogue ul li a{display: block;width: 100%;height: 100%;overflow: hidden;word-wrap: normal;white-space: nowrap;text-overflow: ellipsis;}
.catalogue ul li:hover{background-color: #f7faff;border: solid 1px #7bb3ff;font-weight: bold;}
.catalogue ul li:hover a{color: #0270ff;}
.catalogue ul li:nth-child(4n){margin-right: 0;}

.is-footer{text-align: center;}

/*phone sm*/
@media screen and (max-width: 767px) {
    .core{width: 100%;padding: 0 15px;box-sizing: border-box;}
    .headerbox .title{width: 100%;}
    .tophead{margin-bottom: 30px;}
    .tishi{padding: 10px 15px;height: auto;text-align: left;background: #fff;line-height: 16px;line-height: 36px;}
    .tophead img{display: block;float: none;}
    .tophead a{width: 105px;}
    .mainbody{padding-top: 50px;}
    .catalogue ul li{width: 49%;float: left;margin-right: 0;}
    .catalogue ul li:nth-child(2n){float: right;}
    .is-footer{height: 220px;}
}
@media screen and (min-width:768px) and (max-width: 1025px){
    .core{width: 100%;padding: 0 15px;box-sizing: border-box;}
    .mainbody{padding-top: 50px;}
    .tishi{padding: 20px 35px;height: auto;text-align: left;background: #fff;}
    .catalogue ul li{width: 23%;margin-right: 2%;}
    .is-footer{height: 160px;}
}