.wx_sm{
    width: 1048px;
    height: 78px;
    line-height: 78px;
    margin: 0 auto;
    font-size: 28px;
    background-color: #3c68d0;
    margin-top: 70px;
    color: #fff;
    text-align: center;
    border-radius: 50px;
    -webkit-border-radius: 50px;
    -moz-border-radius: 50px;
    -ms-border-radius: 50px;
    -o-border-radius: 50px;
}

.sm_list{
    padding: 0 35px;
    display: flex;
    justify-content: space-between;
    margin: 70px 0;
}
.sm_list li{
    width: calc((100% - 252px) / 3);
    height: 340px;
    background: #fcfcfc;
    padding: 14px;
    box-shadow: 0 2px 12px 12px #99999933;
}
.sm_list li img{
    width: auto;
    height: 266px;
}
.sm_list li span{
    display: block;
    font-size: 24px;
    text-align: center;
    line-height: 40px;
}