@media screen and (max-width:530px){.pretty-feed .item{backface-visibility:hidden;box-sizing:border-box;height:100%;margin-top:.02rem;width:calc(50% - .01rem)}.pretty-feed .item .preload{height:177px;margin-bottom:.02rem}.pretty-feed .item .item-img{height:290px}.pretty-feed .preload-end{display:block;height:177px;margin-top:-177px;width:calc(50% - .01rem)!important}.pretty-feed .item:nth-child(odd){margin-top:-177px}.pretty-feed .item:first-child{margin-top:0}.pretty-feed .item:first-child img{border-top-right-radius:.04rem}.pretty-feed .item:nth-child(2){margin-top:0}.pretty-feed .item:nth-child(2) .preload-img img{border-top-left-radius:.04rem}.pretty-feed .item-detail{margin-top:.04rem}.pretty-feed .preload-end2{display:none}.pretty-feed-browser .item .item-img{height:204px}.pretty-feed-browser .item-detail{margin-top:0}}