@media screen and (max-width: 550px) {
        /* .ly_news_20 .news_box {
            grid-template-columns: repeat(1, 1fr) !important;
        } */
        .ly_news_20 .item_box .info_box {padding: 5px !important;}
        .ly_news_20 .item_box .info_box .i_title {font-size: 16px !important;}
        .ly_news_20 .item_box .info_box .i_brief {margin-top: 6px !important;line-height: 1.2 !important;}
        .ly_news_20 .item_box .info_box .i_date {margin-top: 6px !important;}
    }