.header .header-nav .nav-item:nth-child(2)::after{
    content: "";
}
.header .header-nav .nav-item:nth-child(2)>a{
    color: #0070D9;
}
.category-list{
    margin-top: 30px;
    display: flex;
    justify-content: center;
}
.category-list .category-item {
    width: 162px;
    height: 40px;
    background: #FFFFFF;
    border: 1px solid #ECECEC;
    border-radius: 20px;
    font-size: 14px;
    color: #1A1A1A;
    line-height: 40px;
    text-align: center;
    margin-right: 10px;
    cursor: pointer;
}
.category-list .category-item a{
    color: #1A1A1A;
    display: block;
}
.category-list .category-item:last-child{
    margin-right: 0;
}
.category-list .category-item.active,
.category-list .category-item:hover{
    background: #0070D9;
    color: #FFFFFF;
}
.category-list .category-item.active a,
.category-list .category-item:hover a{
    color: #FFFFFF;
}

.product-list{
    display: flex;
    flex-wrap: wrap;
    margin-top: 40px;
}
.product-list .product-item{
    margin-top: 30px;
    width: 24%;
    margin-right: 1.33%;
}
.product-list .product-item:nth-child(-n+4){
    margin-top: 0;
}
.product-list .product-item:nth-child(4n){
    margin-right: 0;
}
.product-list .product-item .product-item-img{
    width: 100%;
    aspect-ratio: 1 / 1; /* 1:1 的宽高比，即高度等于宽度 */
    overflow: hidden;
}
.product-list .product-item .product-item-img img{
    width: 100%;
    height: 100%;
    transition: all .3s;
}
.product-list .product-item .product-item-title {
    font-weight: bold;
    font-size: 20px;
    color: #1A1A1A;
    line-height: 23px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    margin: 10px 0;
}
.product-list .product-item .product-item-more{
    font-size: 12px;
    color: #333333;
    line-height: 14px;
    margin-top: 10px;
}
.product-list .product-item .product-item-more img{
    width: 12px;
    height: 8px;
    margin-left: 10px;
}
.product-list .product-item .product-item-more img.active{
    display: none;
}
.product-list .product-item:hover .product-item-video-icon{
    display: block;
}
.product-list .product-item:hover .product-item-more{
    color: #0070D9;
}
.product-list .product-item:hover .product-item-more img.normal{
    display: none;
}
.product-list .product-item:hover .product-item-more img.active{
    display: inline-block;
}
.product-list .product-item:hover .product-item-img img{
    transform: scale(1.05);
}



@media only screen and (min-width: 1000px) and (max-width: 1440px) {
    .category-list{
        margin-top: 20px;
    }
    .product-list{
        margin-top: 30px;
    }
    .product-list .product-item{
        margin-top: 20px;
    }
    .product-list .product-item .product-item-title{
        font-size: 18px;
        line-height: 22px;
        margin: 6px 0;
    }
    .product-list .product-item .product-item-more{
        margin-top: 6px;
    }
}

@media only screen and (max-width: 1000px) {
    .category-list{
        margin-top: 15px;
    }
    .category-list .category-item{
        font-size: 12px;
        height: 30px;
        line-height: 30px;
    }
    .product-list{
        margin-top: 20px;
    }
    .product-list .product-item{
        margin-top: 10px;
    }
    .product-list .product-item .product-item-title{
        font-size: 14px;
        line-height: 16px;
        margin: 2px 0;
    }
    .product-list .product-item .product-item-more{
        margin-top: 4px;
    }
}