.content_div{
    width: 1200px;
    display: table;
    margin: auto;
}
.product_cate{
    width: 200px;
    display: table;
    float: left;
}
.pc_item{
    text-align: center;
    width: 200px;
    font-size: 14px;
    line-height: 1.3;
    padding: 10px 0;
    background: #ddd;
    margin-bottom: 1px;
    display: block;
}
.pc_item_sel{
    background: #0078F1;
    color: #ffffff;
}
.product_list{
    width: 980px;
    display: table;
    float: left;
    margin-left: 20px;
}
.product_item{
    width: calc(32% - 2px);
    height: 235px;
    margin-right: 2%;
    float: left;
    background-color: #ffffff;
    margin-bottom: 20px;
    border: 1px solid #e3e3e3;
    position: relative;
}
.product_item:nth-child(3n){
    margin-right: 0;
}
.product_item_img{
    width: 100%;
    height: 200px;
    overflow: hidden;
    display: block;
}
.product_item img{
    width: auto;
    height: 200px;
    margin: auto;
    display: block;
    transition: all 0.5s;
    cursor: pointer;
}
.product_item img:hover{
    transition: all 0.5s;
    transform: scale(1.1);
    -webkit-transform: scale(1.1);
    -o-transform: scale(1.1);
    -moz-transform: scale(1.1);
    -ms-transform: scale(1.1);
}
.product_item p{
    width: 100%;
    height: 35px;
    font-size: 18px;
    color: #fff;
    line-height: 35px;
    background: #0078F1;
    text-align: center;
}
@media (max-width: 1200px) {
    .content_div{
        width: calc(100% - 20px);
        padding: 0 10px;
    }
    .product_cate{
        width: 100%;
    }
    .pc_item{
        width: 49%;
        margin-right: 2%;
    }
    .pc_item:nth-child(2n){
        margin-right: 0;
    }
    .product_list{
        width: 100%;
        margin-left: 0;
        margin-top: 10px;
    }
    .product_item{
        width: calc(49% - 2px);
        height: auto;
    }
    .product_item:nth-child(2n){
        margin-right: 0;
    }
    .product_item:nth-child(3n){
        margin-right: 2%;
    }
    .product_item_img{
        height: auto;
    }
    .product_item img{
        width: 100%;
        height: auto;
    }
    .product_item p{
        font-size: 0.8rem;
    }
}