body{
    background: #191919;
    margin-top: 68px;
}
.header .header-nav-item:nth-child(2)::after{
    content: '';
}
.header{
    background-color: #FFFFFF;
}
.header .header-logo img.normal{
    display: none;
}
.header .header-logo img.active{
    display: inline-block;
}
.header .header-nav-item a{
    color: #1A1A1A;
}
.header .header-line{
    background: #E6E6E6;
}
.header .header-link .header-link-item img.active{
    display: block;
}
.header .header-link .header-link-item img.normal{
    display: none;
}
.header .header-nav-item:hover a{
    color: #DA251C;
}


.content{
    width: 76%;
    display: flex;
    margin: 20px auto 0;
}
.content .product-info{
    width: 75.4%;
}
.content .product-info .product-video{
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #FFFFFF;
}
.content .product-info .product-video video{
    width: 100%;
    height: 100%;
}
.content .hot-products{
    border: 1px solid #484848;
}
.content .products-list{

}



.content .products-list .title{
    width: 100%;
    font-weight: bold;
    font-size: 20px;
    color: #FFFFFF;
    line-height: 22px;
    text-align: left;
    margin: 0;
}
.content .products-list li{
    width: 100%;
    margin-top: 20px;
    cursor: pointer;
}
.content .products-list li .product-list-video{
    width: 100%;
    aspect-ratio: 229 / 131; /* 1:1 的宽高比，即高度等于宽度 */
    position: relative;
}
.content .products-list li .product-list-video img{
    width: 100%;
    height: 100%;
}
.content .products-list li .product-list-video .product-list-video-icon{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(0,0,0,.4);
    display: none;
}
.content .products-list li .product-list-video .product-list-video-icon img{
    width: 20px;
    height: 20px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.content .products-list li:hover .product-list-video .product-list-video-icon{
    display: block;
}

.content .product-list{
    padding: 15px 20px;
    background: #2B2B2B;
}
.content .product-list .product-item{
    cursor: pointer;
}
.content .product-list .product-item .product-img{
    width: 100%;
    aspect-ratio: 180 / 127;
    position: relative;
}
.content .product-list .product-item .product-img img{
    width: 100%;
    height: 100%;
}
.content .product-item .product-img .product-img-icon{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(0,0,0,.4);
    display: none;
}
.content .product-item .product-img .product-img-icon img{
    width: 16px;
    height: 16px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.content .product-item:hover .product-img .product-img-icon{
    display: block;
}
.content .product-list .product-item .product-title{
    font-weight: bold;
    font-size: 12px;
    color: #FFFFFF;
    line-height: 18px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    margin-top: 5px;
}


.content .product-detail{
    width: 24.6%;
    border: 1px solid #484848;
    padding: 30px 20px;
    background: #141414;
    flex: 1;
}

.content .product-detail .title{
    font-size: 20px;
    color: #FFFFFF;
    line-height: 30px;
    text-align: left;
}
.content .product-detail .product-mark{
    display: flex;
    align-items: center;
    line-height: 23px;
    margin-top: 20px;
}
.content .product-detail .product-mark  .product-mark-title{
    font-size: 16px;
    color: #FFFFFF;
}
.content .product-detail .product-mark  .product-mark-list{
    display: flex;
}
.content .product-detail .product-mark  .product-mark-list .product-mark-img{
    margin-left: 10px;
}
.content .product-detail .product-line{
    width: calc(100% + 40px);
    height: 1px;
    background: #484848;
    margin: 30px -20px;
}
.content .product-detail .product-attribute{

}
.content .product-detail .product-attribute .product-attribute-item{
    margin-bottom: 15px;
    font-size: 16px;
    color: #FFFFFF;
    line-height: 24px;
    display: flex;
}
.content .product-detail .product-attribute .product-attribute-item .product-attribute-title{
    color: rgba(255, 255, 255, .6);
}
.content .product-detail .product-attribute .product-attribute-item .product-attribute-value{
    margin-left: 15px;
}

.content .product-detail .product-button-warp{
    display: flex;
}
.content .product-detail .product-detail-btn{
    width: 132px;
    height: 30px;
    background: rgba(255,255,255,0.4);
    border-radius: 15px;
    border: 1px solid #FFFFFF;
    font-size: 16px;
    color: #FFFFFF;
    text-align: center;
    line-height: 30px;
    cursor: pointer;
}
.content .product-detail .product-button{
    width: 100px;
    height: 30px;
    background: #DA251C;
    border-radius: 15px;
    font-size: 16px;
    color: #FFFFFF;
    text-align: center;
    line-height: 30px;
    cursor: pointer;
    margin-left: 10px;
}





@media screen and (min-width: 1400px) and (max-width: 1600px) {
    .content .product-detail{
        padding: 20px 15px;
    }
    .content .product-detail .product-mark{
        margin-top: 15px;
    }
    .content .product-detail .product-line{
        width: calc(100% + 30px);
        margin: 25px -15px;
    }
    .content .product-detail .product-attribute .product-attribute-item{
        margin-bottom: 12px;
        line-height: 21px;
    }
    .content .product-detail .product-attribute .product-attribute-item .product-attribute-value{
        margin-left: 12px;
    }
}


@media screen and (min-width: 1200px) and (max-width: 1400px) {
    .content .product-detail{
        padding: 15px 10px;
    }
    .content .product-detail .title{
        font-size: 16px;
        line-height: 24px;
    }
    .content .product-detail .product-mark{
        margin-top: 10px;
    }
    .content .product-detail .product-line{
        width: calc(100% + 20px);
        margin: 20px -10px;
    }
    .content .product-detail .product-attribute .product-attribute-item{
        margin-bottom: 10px;
        font-size: 14px;
        line-height: 21px;
    }
    .content .product-detail .product-attribute .product-attribute-item .product-attribute-value{
        margin-left: 10px;
    }
}

@media screen and (min-width: 1000px) and (max-width: 1200px) {
    .content .product-detail{
        padding: 10px 5px;
    }
    .content .product-detail .title{
        font-size: 14px;
        line-height: 21px;
    }
    .content .product-detail .product-mark .product-mark-title{
        font-size: 12px;
    }
    .content .product-detail .product-mark{
        margin-top: 5px;
    }
    .content .product-detail .product-line{
        width: calc(100% + 10px);
        margin: 10px -5px;
    }
    .content .product-detail .product-attribute .product-attribute-item{
        margin-bottom: 5px;
        font-size: 12px;
        line-height: 18px;
    }
    .content .product-detail .product-attribute .product-attribute-item .product-attribute-value{
        margin-left: 5px;
    }
    .content .product-detail .product-detail-btn,
    .content .product-detail .product-button{
        font-size: 12px;
    }
}

@media only screen and (max-width: 1000px) {
    .content .product-detail{
        padding: 5px 0;
    }
    .content .product-detail .title{
        font-size: 14px;
        line-height: 21px;
    }
    .content .product-detail .product-mark{
        margin-top: 2px;
        line-height: 16px;
    }
    .content .product-detail .product-mark .product-mark-title{
        font-size: 12px;
    }
    .content .product-detail .product-line{
        width: 100%;
        margin: 5px 0;
    }
    .content .product-detail .product-attribute .product-attribute-item{
        margin-bottom: 2px;
        font-size: 12px;
        line-height: 18px;
    }
    .content .product-detail .product-attribute .product-attribute-item .product-attribute-value{
        margin-left: 5px;
    }
    .content .product-detail .product-detail-btn,
    .content .product-detail .product-button{
        font-size: 12px;
    }
}


/**
 * product content styles
 **/
.product-content-warp{
    width: 100%;
    height: calc( 100vh - 82px );
    background: rgba(0, 0, 0, .6);
    position: fixed;
    top: 80px;
    left: 0;
    display: none;
}
.product-content{
    width: 1100px;
    height: 75%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: linear-gradient( 180deg, #E6F1FF 0%, #FFFFFF 100%);
    border-radius: 24px;
    overflow-y: scroll;
    overflow-x: hidden;
    padding: 30px 50px;
}
/* 自定义滚动条的轨道（背景） */
.product-content::-webkit-scrollbar {
    width: 5px; /* 滚动条的宽度 */
}
/* 自定义滚动条的轨道（容器） */
.product-content::-webkit-scrollbar-track {
    background: transparent; /* 轨道的背景色 */
    border-radius: 2px; /* 圆角 */
}
/* 自定义滚动条的滑块（可拖动部分） */
.product-content::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, .7); /* 滑块的颜色 */
    border-radius: 2px; /* 圆角 */
}
.product-content .title{
    font-weight: bold;
    font-size: 30px;
    color: #333333;
    line-height: 33px;
    text-align: center;
}
.product-content .product-content-close{
    float: right;
    width: 24px;
    height: 24px;
    cursor: pointer;
}
.product-content .product-content-close img{
    width: 100%;
    height: 100%;
}
.product-content .product-content-title{
    font-size: 20px;
    color: #1A1A1A;
    line-height: 42px;
    font-weight: bold;
    border-bottom: 1px solid #E6E6E6;
    cursor: pointer;
    margin-top: 10px;
}
.product-content .product-content-title::before{
    content: '';
    display: inline-block;
    width: 4px;
    height: 12px;
    background: #1562C5;
    margin-right: 10px;
    vertical-align: middle;
}
.product-content .product-content-text{
    margin-top: 10px;
    color: #666666;
}
.product-content .product-content-text p,
.product-content .product-content-text span{
    text-wrap: wrap !important;
}
.product-content .product-content-case{
    margin: 0 auto;
}
.product-content .product-content-case ul{
    display: flex;
    flex-wrap: wrap;
}
.product-content .product-content-case ul .product-content-case-item{
    width: 16%;
    aspect-ratio: 1 / 1;
    margin-right: 0.8%;
    margin-top: 20px;
    cursor: pointer;
    overflow: hidden;
}
.product-content .product-content-case ul .product-content-case-item:nth-child(-n+6){
    margin-top: 0;
}
.product-content .product-content-case ul .product-content-case-item:nth-child(6n){
    margin-right: 0;
}
.product-content .product-content-case ul .product-content-case-item img{
    width: 100%;
    height: 100%;
    transition: transform 0.5s ease;
}
.product-content .product-content-case ul .product-content-case-item:hover img{
    transform: scale(1.1);
}
.product-content .product-content-certificate{
    margin: 0 auto;
}
.product-content .product-content-certificate ul{
    display: flex;
    flex-wrap: wrap;
}
.product-content .product-content-certificate ul .product-content-certificate-item{
    width: 12%;
    aspect-ratio: 116 / 166;
    margin-right: 0.6666%;
    margin-top: 20px;
    cursor: pointer;
    overflow: hidden;
}
.product-content .product-content-certificate ul .product-content-certificate-item:nth-child(-n+8){
    margin-top: 0;
}
.product-content .product-content-certificate ul .product-content-certificate-item:nth-child(8n){
    margin-right: 0;
}
.product-content .product-content-certificate ul .product-content-certificate-item img{
    width: 100%;
    height: 100%;
    transition: transform 0.5s ease;
}
.product-content .product-content-certificate ul .product-content-certificate-item:hover img{
    transform: scale(1.1);
}
@media screen and (min-width: 1000px) and (max-width: 1440px) {
    .product-content{
        width: 900px;
    }
}

@media only screen and (max-width: 1000px) {
    .product-content{
        width: 700px;
    }
}