.dingzhi {
    top: 465px;
    z-Index: 25;
    height: 300px;
    position: absolute;
}
.dingzhi a{
    text-decoration:none;
}

.dingzhi li {
    width: 273px;
    height: 300px;
    float: left;
    margin: 19px 46px;
}
.dingzhi li img{
    width: 100%;
    height: 200;
}
.dingzhi li span {
    font-size: 16px;
    display: block;
    text-align: left;
    line-height: 16px;
    margin-top: 19px;
}
.dingzhi li p {
    font-size: 12px;
    display: block;
    text-align: left;
    line-height: 16px;
    margin-top: 14px;
}
/*  */
.case_dingzhi {
    top: 142px;
    z-Index: 16;
    position: absolute;
}
.case_dingzhi a{
    text-decoration:none;
}

.case_dingzhi li {
    width: 273px;
    height: 300px;
    float: left;
    margin: 19px 46px;
}
.case_dingzhi li img{
    width: 100%;
    height: 200;
}
.case_dingzhi li span {
    font-size: 16px;
    display: block;
    text-align: left;
    line-height: 16px;
    margin-top: 19px;
}
.dcase_dingzhi li p {
    font-size: 12px;
    display: block;
    text-align: left;
    line-height: 16px;
    margin-top: 14px;
}
 /* 首页-产品中心 */
 .product_contanar{
    top: 960px;
    left: 0px;
    z-Index: 17;
    position: absolute;
 }
 .product_contanar li {
    width: 230px;
    height: 220px;
    float: left;
    margin: 19px 20px;
}
.dingzhi li img{
    width: 100%;
    /* height: 200; */
}