.bg{    background: url(/tianjin_customs/template/page/index_2020/customs_bg.png) no-repeat top center;
    background-size: 100%;}
.gk_main {
    max-width: 1200px;
    min-width: 1200px;
    margin: 0 auto;
    padding-top: 20px;
}

    .gk_box {
        width: 100%;
        height: auto;
        margin-top: 10px;
    }
    
    .gk_box li {
        display: inline-block;
        height: 300px;
        width: 30%;
        margin: 10px;
        overflow: hidden;
        border-radius: 5px;
        background-color: white;
        box-shadow: 1px 1px 1px 2px #e2e2e2;
    }
    
    .gk_box .title {
        height: 10%;
        padding: 10px;
        border-bottom: 1px solid #e2e1e1;font-size: 16px;
    }
    
    .title span {
         font-size: inherit;
    }
    .title span:nth-child(1) {
       color: #236eaf;
       font-weight: 600;
    }
    
    .title span:nth-child(2) {
        float: right;color: #c0bec1;
    }
    
    .gk_Img {
        width: 100%;
        height: 60%;
        overflow: hidden;
        /* object-fit: cover; */
    }
    
    .gk_Img img {
        object-fit: cover;
        width: 100%;
        height: 100%;
        transition: all 0.3s;
    }
    
    .gk_Img img:hover {
        transform: scale(1.1);
    }
    
    .summary {
        padding: 10px;
    }
@media screen and (max-width:390px),
(max-width:768px),
(max-width:820px),
(max-width:1160px) {
.gk_main {
    max-width: 100%;
    min-width: 100%;
}
    .gk_box li { width: 90%;}
}