.contanter{
    padding-bottom: 37.5% !important;
}
.contanter{
    background: url(../img/system/bg.png) center;
    background-size: 100% 100%;
}
.content{
    width: 1200px;
    margin: 40px auto 0 auto;
}
.content_box li{
    float: left;
    width: 33%;
    margin-top: 60px;
}
.detail_img{
    width: 80px;
    height: 80px;
}
.detail_img img{
    width: 100%;
    height: 100%;
}
.detail{
    width: calc(100% - 120px);
}
.wrap{
    background: #F7FAFA;
}
.wrap_content{
    width: 1200px;
    margin: 0 auto;
    padding: 60px 0;
}
.flex{
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.wrap_box{
    width: 285px;
    border: 1px solid #DADCDF;
    box-sizing: border-box;
    margin-right: 15px;
    margin-top: 20px;
    padding: 30px 20px;
    height: 350px;
    background: #fff;
    cursor: pointer;
}
.wrap_box:nth-child(4n){
    margin-right:0px;
}
.group{
    width: 1200px;
    margin: 0 auto;
    padding: 60px 0;
}
.group_li{
    width: 285px;
    margin-right: 15px;
    margin-top: 20px;
    height: 330px;
    position: relative;
    float: left;
    cursor: pointer;
}
.group_img{
    width: 100%;
    height: 100%;

}
.group_img img{
    width: 100%;
    height: 100%;
}
.group_text{
    /*background: linear-gradient(180deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.6) 100%);*/
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 0 20px;
    box-sizing: border-box;

}