.banner {
    width: 100%;
    height: 560px; 
    position: relative;
}
#contentBanner, #contentBanner img{
    height: 100%;
    width: 100%;
}
.banner img {
    width: 100%;
    height: 100%; 
}
.product {
    position: relative;
    padding: 0 200px 80px 200px;
}
.left{
    width: 210px;
    float: left;
}
.meun{
    background: #FFF;
}
.main{
    width: calc(100% - 210px);
    float: left;
}
.main .list{
    min-height: 900px;
}
.list .item{
    float: left;
    width: calc(33.33% - 40px);
    height: 250px;
    background: #FFF;
    /* border: 1px solid #BB0009; */
    margin: 0 20px 50px 20px;
    box-shadow: 0 2px 12px 0 rgb(0 0 0 / 10%)
}
.list .item:hover{
    background: #BB0009;
    color: #FFF;
}
.list .item:hover .name{
    color: #FFF;
}
.list .item .img-box{
    height: 180px;
    text-align: center;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}
.list .item img{
    width: 100%;
    max-height: 100%;
}
.list .item .name{
    text-align: center;
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 2px;
    padding-top: 20px;
    color: #000;
}
.menu{
    width: 100%;
    height: 100%;
    background: #FFF;
    border-right: 1px solid #ccc;
    box-shadow: 0 2px 12px 0 rgb(0 0 0 / 10%);
}
.menu .name{
    height: 50px;
    line-height: 50px;
    display: block;
    padding: 0 20px 0 35px;
    font-size: 16px;
}
.menu .name .zh{
    width: 60px;
    display: inline-block;
    text-align-last: justify;
}
.menu .name .en{
    font-size: 14px;
}
.menu .icon{
    width: 33px;
    height: 33px;
    display: inline-block;
    margin-bottom: -7px;
}

.icon.triangle{
    background: url("../images/product/right.png") center center no-repeat;
    background-size: 40%;
    margin-top: -40px;
    margin-right: 20px;
    float: right;

}
.left .menu ul {
    margin: 0;
    padding-left: 0;
}
.left .menu li{
    list-style: none;
    margin: 0;
}
.left .menu li span{
    cursor: pointer;
}
.left .menu .menu-item:hover .name{
    color: #FFFFFF;
    background: #BB0009;
}
.left .menu .menu-item:hover .icon.triangle{
    filter: invert(1);
}
.menu-item.active .icon.triangle{
    background: url("../images/product/down.png") center center no-repeat;
    background-size: 40%;
    
}
.left .menu .menu-item.active .submenu{
    display: block;
    color: #666;
    font-size: 14px;
    letter-spacing: 1px;
    background: #F5f5f5;
}
.left .menu .menu-item.active .submenu li{
    padding: 15px 0;
    padding-left: 55px;
}
.left .menu .menu-item.active .submenu-item.active{
    display: block;
    color: #BB0009;
    background: rgb(0 0 0 / 10%);;
    border-right: 2px solid #bb0009;
}
.left .menu .menu-item.active .submenu-item a{
    color: #000;
}
.left .menu .menu-item.active .submenu-item.active a{
    color: #BB0009;
}
.left .menu .submenu{
    display: none;
}
.product-content{
    position: relative;
    width: 50%;
    float: left;
    
}
.product-content .view{
    height: 450px;
    background: #f9f9f9;
    padding: 0 60px;
}
.product-content .view .img-box{
    height: 450px;
    display: table-cell;
    vertical-align: middle;
    text-align: center;
}
.product-content .view .img-box img{
    width: 100%;
    max-height: 100%;
}
.product-content .view .swiper-slide {
    padding: 0px 35px;
    text-align: center;
    display: table;
}
.product-content .view .name{
    font-size: 24px;
    font-weight: bold;
    text-align: center;
    padding: 20px 0;
    letter-spacing: 5px;
    color: #000;
}
.product-content .view .arrow-btn {
    position: absolute;
    top: 206px;
    text-align: center;
    color: var(--theme-red);
    font-size: 15px;
    border-radius: 50%;
    padding-left: 4px;
}
.product-content .view .arrow-btn.left {
    left: 25px;
    width: 0;
}
.product-content .view .arrow-btn.right {
    right: 30px;
}


.product-content .preview{
    height: 80px;
    padding: 0 40px;
    overflow: hidden;
    margin-top: 10px;
}
.product-content .preview .img-box{
    height: 60px;
    width: 80px;
    border: 1px solid #CCC;
   
}
.product-content .preview .img-box img{
    width: 100%;
    height: 100%;
}
.product-content .preview .swiper-slide {
    padding: 0px 15px;
    text-align: center;
}
.active-nav .img-box{
    border:1px solid #bb0009 !important;
}
.product-content .preview .swiper-container{
    overflow: hidden;
}
.product-content .preview .arrow-btn {
    position: absolute;
    top: 480px;
    text-align: center;
    color: #666;
    font-size: 12px;
    border-radius: 50%;
    padding-left: 4px;
}
.product-content .preview .arrow-btn.left {
    left: 15px;
    width: 0;
}
.product-content .preview .arrow-btn.right {
    right: 15px;
}

.product-info{
    float: left;
    width: 50%;
    padding-left: 35px;
    font-size: 14px;
    letter-spacing: 1px;
    
}
.product-info .title{
    font-size: 18px;
    font-weight: bold;
    letter-spacing: 2px;
}
.product-info .type{
    font-size: 16px;
    color: #BB0009;
    letter-spacing: 2px;
    padding: 10px 0;
}
.product-info .btn{
    font-size: 16px;
    color: #fff;
    background: #cc1a1c;
    letter-spacing: 2px;
    padding: 5px 0;
    text-align: center;
    width: 130px;
    margin: 50px 0 20px 0;
}
.product-info .desc{
    line-height: 25px;
    color: #5a5a5a;
}
#product-footer .footer {
    background: #FFF;
}