.page_banner {
    background: url("../images/banner/product_banner.jpg") no-repeat center
}

.product_tab_box {
    width: 270px;
    margin-right: 30px;
    box-sizing: border-box
}

.product_tab_box ul {
    background: #fff;
    padding: 10px 0;
    border: 5px solid #0049ac
}

.product_tab_box ul li.active a,
.product_tab_box ul li:hover a {
    color: #0049ac;
    background: url("../images/index/product_tab_icon_3.jpg") no-repeat 240px center
}

.product_tab_box ul a {
    display: block;
    padding: 12px 25px 12px 15px;
    font-size: 14px;
    color: #333333;
    background: url("../images/index/product_tab_icon_2.jpg") no-repeat 240px center
}

.product_tab_title {
    padding: 30px 20px 25px;
    background: #0049ac
}

.product_tab_title h1 {
    font-size: 24px;
    color: #fff;
    padding-right: 30px;
    background: url("../images/index/product_tab_icon_1.jpg") no-repeat right center
}

.product_tab_title h5 {
    text-transform: uppercase;
    margin-top: 5px;
    color: #fff
}

.concat_img {
    margin-top: 25px
}

.concat_info {
    border: 1px solid #eeeeee;
    padding: 20px 15px
}

.concat_info h5 {
    color: #666666;
    line-height: 2
}

.concat_info h5 span {
    font-weight: bold;
    color: #333333
}

.product_list_box {
    width: 1100px
}

.product_list {
    text-align: center
}

.product_list li {
    width: 340px;
    margin-left: 26px;
    margin-bottom: 25px
}

.product_list li:hover h4 {
    background: #ffde00
}

.product_img {
    width: 100%;
    height: 340px;
    background: #eee;
    overflow: hidden;
}

.product_img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.product_img+h4 {
    font-size: 16px;
    line-height: 46px;
    height: 46px;
    padding: 0 10px;
    color: #333333;
    background: #eee
}

.product_detail {
    padding: 30px 0;
    position: relative;
}

.product_swiper {
    width: 50%;
    width: 700px;
}

.product_swiper img {
    width: 100%;
    height: 100%;
    object-fit: contain
}

.product_swiper .swiper-pagination-bullet {
    width: 10px;
    height: 10px
}

.product_info {
    width: 50%;
    box-sizing: border-box;
    padding-left: 50px
}

.product_info h1 {
    font-size: 36px;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eaeaea
}

.product_info h3 {
    color: #0049ac;
    line-height: 1.8
}

.product_info h3 b {
    margin-right: 5px
}

.product_info_item h5 {
    line-height: 2.2
}

.product_info_item h5:nth-child(1) {
    width: 60px;
    flex-shrink: 0
}

.product_info_item h5:nth-child(2) {
    flex-shrink: 1
}

.product_info_item+h3 {
    margin-top: 40px
}