@media screen and (max-width: 768px){
    .help-page .page .main .w1200{
        max-width: calc(100% - 4rem);
    }
    .help-page .page .main .main-top{
        position: relative;
    }
    .help-page .page .main .main-top .main-top-menu{
        width: calc(100% - 5rem);
        padding: 0rem 1rem 0rem 0rem;
    }
    .help-page .page .main .main-top .search-icon{
        width: 1.75rem;
        height: auto;
        position: absolute;
        right: 0.875rem;
        top: 0.875rem;
    }
    .help-page .page .main .cate-title {
        margin: 2rem auto 1.5rem auto;
    }
    .help-page .page .main .cate-list ul li{
        width: calc((100% - 1rem)/2);
        height: 7rem;
        margin-right: 1rem;
        margin-bottom: 1rem;
    }
    .help-page .page .main .cate-list ul li:nth-child(4n){
        margin-right: 1rem;
    }
    .help-page .page .main .cate-list ul li:nth-child(2n){
        margin-right: 0rem;
    }
    .help-page .page .main .main-box .main-box-left{
        display: none;
    }
    .help-page .page .main .main-box .main-box-right{
        width: 100%;
    }
    .help-page .page .main .main-box {
        margin: 0.5rem auto;
    }
}