.expand_list>ul>li{
    float: left;
    background: #be8a43;
    width: 31.58%;
    margin:0 2.6% 30px 0;
}
.expand_list>ul>li:nth-child(3n){
    margin-right: 0;
}
.ex_tetx{
    padding:20px 24px;
    color: #ffffff;
}
.ex_tetx h3{
    font-size: 26px;
    font-weight: bold;
    margin-bottom: 8px;
}
.ex_tetx p{
    font-size: 20px;
    line-height: 32px;
}
.ex_pic{
    overflow: hidden;
}