.contentli .second_level {
    width: 100%;
    border-bottom: 1px solid #e3e3e3;
    margin: 25px auto 0 auto;
}
.tl_sltittle{
    font-size: 18px;
    font-weight: bold;
    border-bottom: 2px solid #f38726;
    display: inline-block;
    padding-left: 5px;
    padding-right: 5px;
    padding-bottom: 7px;
    color: #f38726;
    margin-bottom: -1px;
    text-indent: 0;
}
.second_level a {
    width: 45px;
    height: 21px;
    display: block;
    float: right;
    background: #efefef;
    color: #999999;
    text-align: center;
    line-height: 21px;
    margin-top: 2px;
}
.mainleft-item-list {
    width: 100%;
    margin: 0 auto;
    margin-top: 30px;
    overflow: hidden;
}
.mainleft-item-list ul li {
    width: 33%;
    float: left;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
    box-sizing: border-box;
    -ms-box-sizing: border-box;
    padding-left: 15px;
    padding-right: 60px;
    position: relative;
    display: flex;
    justify-content: space-between;
}
.mainleft-item-list ul li a {
    color: #333333;
    display: block;
    max-width: 260px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.mainleft-item-list ul li span {
    color: #999999;
    float: right;
}
.second_level ul,.second_level ul li{
    float: right;
}
.second_level ul li{
    margin: 0 10px;
}
.second_level ul li a{
    width: fit-content;
    padding: 0 10px;
    background: none;
    color: #333;
}
@media screen and (max-width: 759px) {
    .contentli{
        background: #fff;
        padding: 10px;
        margin: 10px 0;
    }
   .mainleft-item-list ul li{
        width: 100%;
        justify-content: space-between;
        padding:0;
   }
   .second_level ul{
        display: none;
   }
}