.prohead{
    position:absolute;
    left:0;
    top:0;
    background:transparent!important;
}
.exicon {
    background: url("../images/index/exicon.png") no-repeat;
}
.gbg {
    background: url(../images/index/gbg.png) no-repeat;
}
.toptit {
    position: relative;
    padding: 0 0 20px 50px;
}
.rengzhengPic {width:100%;padding:60px 0 75px 0;box-sizing: border-box}
.rengzhengPic ul {display:flex;}
.rengzhengPic li {flex:1;}
.rengzhengPic li h6 {margin:0 0 10px 0;line-height:1;font-size:16px;font-weight:normal;color:#666;white-space:nowrap;}
.rengzhengPic li p {margin:0;line-height:1;font-size:14px;color:#333;white-space:nowrap;}
.rengzhengPic li i {display:inline-block;position:absolute;top:0;left:12px;}
.rengzhengPic li i.gbgi1 {width:33px;height:38px;background-position:0 -1px;}
.rengzhengPic li i.gbgi2 {width:41px;height:36px;background-position:-56px -2px;}
.rengzhengPic li i.gbgi3 {width:42px;height:38px;background-position:-116px -1px;}
.rengzhengPic li i.gbgi4 {width:40px;height:40px;background-position:-177px 0;}
.rengzhengPic li i.gbgi5 {width:38px;height:39px;background-position:-238px -1px;}
.rengzhengPic li span {display:block;width:218px;height:152px;margin:0 auto;}
.rengzhengPic li .spa1 {background-position:0 -55px;}
.rengzhengPic li .spa2 {background-position:0 -218px;}
.rengzhengPic li .spa3 {background-position:0 -382px;}
.rengzhengPic li .spa4 {background-position:0 -548px;}
.rengzhengPic li .spa5 {background-position:0 -710px;}
.textcenter {text-align: center;}
.extit {
    padding: 100px 0 60px;
}
.extit h4 {
    margin-bottom: 22px;
    font-size: 36px;
    font-weight: normal;
    line-height: 1;
    color: #333333;
}
.extit .desc {
    font-size: 16px;
    line-height: 1;
    color: rgba(51,51,51,.5);
}