.main {
    /* padding-top: 70px; */
    width: 100%;
    height: 1973px;
    background-image: url(../../images/mengban2.png);
    background-size: 100% 1973px;
    overflow: hidden;
    /* padding-bottom: 66px; */
    background-repeat: no-repeat;
}

.line {
    max-width: 1200px;
    height: 1px;
    background: #D8D8D8;
    margin: 31px 0 80px;
}

.list_item {
    max-width: 1200px;
    height: 257px;
    background: #FFFFFF;
    box-shadow: 0px 1px 16px 0px rgba(0, 0, 0, 0.12);
    display: flex;
    position: relative;
    margin-bottom: 20px;
}

.list_item .list_item_left img {
    width: 386px;
    height: 257px;
    margin-right: 24px;
}

.list_item .list_item_left .date {
    position: absolute;
    width: 140px;
    height: 48px;
    background: rgba(20, 135, 164, 0.8);
    top: 0;
    left: 0;
    font-weight: 400;
    font-size: 20px;
    color: #FFFFFF;
    line-height: 48px;
    text-align: center;
}

.list_item .list_item_right {
    width: 742px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.list_item .list_item_right .title {
    font-weight: 500;
    font-size: 28px;
    color: #3D3D3D;
    line-height: 39px;
    margin-top: 24px;
}

.list_item .list_item_right .desc {
    margin-bottom: 28px;
    font-weight: 400;
    font-size: 20px;
    color: #999999;
    line-height: 36px;
}

.list_item:hover {
    cursor: pointer;
}

.mb_date {
    display: none;
}

@media (max-width: 768px) {
    .mb_list {
        margin-top: 4.267vw;
        min-height: 32.333vw;
    }

    .list_item {
        width: 91.467vw;
        height: 29.867vw;
        box-shadow: unset;
        border: 1px solid #F2F2F2;
        padding: 4.267vw 6.133vw 4.267vw 4.267vw;
        box-sizing: border-box;
        margin-bottom: 2.667vw;
    }

    .list_item .list_item_left img {
        width: 32vw;
        height: 21.333vw;
        margin-right: 4.267vw;
    }

    .list_item .list_item_right {
        width: 44.8vw;
    }

    .list_item .list_item_right .title {
        font-size: 14px;
        line-height: 24px;
        margin-top: 1.067vw;
        display: -webkit-box;
        /* 设置为WebKit内核的弹性盒子模型 */
        -webkit-box-orient: vertical;
        /* 垂直排列 */
        -webkit-line-clamp: 2;
        /* 限制显示两行 */
        overflow: hidden;
        /* 隐藏超出范围的内容 */
        text-overflow: ellipsis;
        /* 使用省略号 */
    }

    .list_item .list_item_right .desc,
    .list_item .list_item_left .date {
        display: none;
    }

    .mb_date {
        font-weight: 400;
        font-size: 14px;
        color: #1487A4;
        line-height: 2.933vw;
        margin-top: 1.067vw;
        display: block;
    }

    .mb_line {
        display: none;
    }
    
}