.ly_about_11 .wide .srcoll_list .srcoll_btn_prev { position: absolute; top: 50%; transform: translateY(-50%); width: 50px; height: 50px; border-radius: 50%; background-color: #afafaf; z-index: 1; text-align: center; left: 9%;}
    .ly_about_11 .wide .srcoll_list .srcoll_btn_prev::after { content: "\e63c"; line-height: 50px; color: #fff; font-size: 20px; font-weight: bold; font-family: "iconfont" !important;}
    .ly_about_11 .wide .srcoll_list .srcoll_btn_next  { position: absolute; top:50%; transform: translateY(-50%); width: 50px; height: 50px; border-radius: 50%; background-color: #afafaf; z-index: 1; text-align: center; right: 9%;}
    .ly_about_11 .wide .srcoll_list .srcoll_btn_next::after { content: "\e641"; line-height: 50px; color: #fff; font-size: 20px; font-weight: bold; font-family: "iconfont" !important;}
    .ly_about_11 .srcoll_turn { display: none;}
    @media screen and (min-width:1000px) {
        .ly_about_11 .wide .srcoll_list .srcoll_btn_prev { top: calc( 50% + 59px);}
        .ly_about_11 .wide .srcoll_list .srcoll_btn_next {top: calc( 50% + 59px); }
    }