.content{
    width: 1200px;

}
.content .product_catetorys{
    padding-top: 56px;
    width: 1200px;
    display: flex;
    flex-wrap: wrap;
    border-bottom: 1px solid #ccc;
    position: fixed;
    background: #fff;
    z-index: 9;
}
.product_catetorys .category{
    line-height: 36px;
    border-radius: 4px;
    cursor: pointer;
    margin-left: 3px;
    margin-right: 32px;
    font-weight: bold;
}
.product_catetorys .category:last-child{
    margin-right: 0px!important;
}
.product_catetorys .category:hover{
    color: #00b7ee!important;
}
.product_catetorys .category:hover a{
    color: #fff!important;
}
.product_catetorys  .category.selected{
    color: #00b7ee!important;
}
.product_catetorys  .category.selected a{
    color: #fff!important;
}
.content .product_list{
    margin-top: 120px;
    flex-grow: 1;
    display: inline-flex;
    justify-content: flex-start;
    flex-wrap: wrap; /* 换行 */
}

.content .product_list .product{
    width: 320px;
    height: 320px;
    margin:12px 60px;
}
.content .product_list .product:nth-child(3n + 1){

    margin-left:0px!important;
}
.content .product_list .product:nth-child(3n){

    margin-right:0px!important;
}


.content .product_list .product:hover{
    opacity : 0.85;
}

.product_list .thumb-model {
    min-height: 505px;
    margin-bottom: 55px;
    text-align: center
}

.product_list  .thumb-model .product-img {
    position: relative;
    display: block;
    min-height: 320px
}

.product_list .thumb-model .product-img img {
    width: 320px
}

.product_list .thumb-model h4 {
    color: #44a8f2;
    font-size: 16px;
    font-weight: 400;
    display: block;
    padding: 0 0 20px
}

.product_list .thumb-model p {
    height: 40px;
    margin-bottom: 20px;
    color: #707473;
    font-size: 12px;
    line-height: 19px;
    overflow: hidden
}

.product_list .thumb-model .link-more {
    position: relative;
    font-weight: 400;
    font-size: 12px;
    line-height: 15px;
    padding-bottom: 10px;
    cursor: pointer
}

.product_list .thumb-model .link-more:after, .product_list .thumb-model .link-more:before {
    content: " ";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2px;
    background: #44a8f2
}

.product_list .thumb-model .link-more:after {
    left: 51%;
    right: 51%;
    background: #fff;
    transition: all 300ms
}

.product_list .thumb-model .link-more:hover:after {
    left: 0;
    right: 0
}

.product_list .thumb-model .link-more.link-more-grey {
    color: #707473
}

.product_list  .thumb-model .link-more.link-more-grey:before {
    background: #44a8f2
}

.product_list .thumb-model .link-more.link-more-grey:after {
    background: #707473
}

.product_list .thumb-model .btn-primary {
    margin-left: 15px;
    border-radius: 2px;
    border: 2px solid #44a8f2;
    background-color: #44a8f2;
    color: #fff;
    font-weight: 400;
    transition: all 300ms
}

.product_list .thumb-model .btn-primary:focus {
    color: #44a8f2;
    background-color: transparent;
    border: 2px solid #44a8f2
}

.product_list .thumb-model .btn-primary:hover {
    color: #44a8f2;
    background-color: transparent;
    border: 2px solid #44a8f2
}

.product_list .thumb-model .tips {
    color: #b13527;
    display: none;
    position: absolute;
    width: 100%;
    bottom: -5px
}