.main_box .news_list .item .pic img{

}
.main_box .news_list .item:hover .pic .front{
    transform: rotateY(-90deg);
}
.main_box .news_list .item:hover .pic .black{
    transform: rotateY(0deg);
}
.main_box .news_list .item .pic .front{
    transform: rotateY(0);
    transition: all .5s ease-in-out 0s;
}
.main_box .news_list .item .pic .black{
    transform: rotateY(90deg);
    transition: all .5s ease-in-out 0s;
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    margin: auto;
}
.main_box .news_list ul li{
    width: 81%;
}
.main_box .news_list .item .bottom_message{
    justify-content: space-around;
    margin-top: 17px;
}
.main_box .news_list .item .bottom_message>div{
    font-size: 20px;
}
.main_box .news_list .item:hover  strong{
    color: #ae8e4d;
}

@media (max-width: 768px) {
    .main_box .news_list{
        padding: 0 15px;
    }
    .main_box .news_list ul li{
        width: 100%;
    }

    .main_box .news_list .item .message .summary{
        display: none;
    }
    .main_box .news_list .item .bottom_message{
        display: block;
    }
    .main_box .news_list .item .bottom_message>div{
        margin-bottom: 13px;
    }

}