body{
    width: 100%;
    margin:auto;
}
.header{
    width: 100%;
    margin-top:0px;
}
.header .header-img{
    width: 1519px;
    height: 123px;
}
.header .btn{
    width: 100%;
    height: 62px;
    margin: 0px auto;
    background: url("dhbg.jpg");
}
.an{
    display: flex;
    margin: auto;
    width: 80%;
}
.headerimg{    width: 100%;
    height: 123px;
    margin: 0px auto;
    background: url("top.jpg");}
.ul-btn{width: 950px;
    height: 62px;
    margin: 0px auto;}
.ul-btn li{float:left;width:105px;    list-style: none;}
.dh{ width: 100%;height:62px;text-align: center;}
.dh:hover{ width: 100%;height:62px;text-align: center;background: url("dhbg1.jpg");background-position: center; text-align: center; background-repeat: no-repeat;}
.dh a{width: 100%;line-height: 55px;font-size: 16px;color: #59606a;font-weight: bold;text-align: center;    text-decoration: none}
.dh a:hover{width: 100%;line-height: 55px;font-size: 16px;color: #8f6f98;font-weight: bold;text-align: center;    text-decoration: none}