.category-list{
    display: flex;
    flex-wrap: wrap;
}
.category-list .category-item {
    width: 18%;
    height: 40px;
    background: #FFFFFF;
    border: 1px solid #ECECEC;
    font-size: 14px;
    color: #1A1A1A;
    line-height: 40px;
    text-align: center;
    margin-right: 2.5%;
    margin-top: 18px;
    cursor: pointer;
}
.category-list .category-item a{
    color: #1A1A1A;
}
.category-list .category-item:nth-child(5n){
    margin-right: 0;
}
.category-list .category-item:nth-child(-n+5){
    margin-top: 0;
}
.category-list .category-item.active,
.category-list .category-item:hover{
    border: 1px solid #E60012;
    color: #E60012;
}
.category-list .category-item.active a,
.category-list .category-item:hover a{
    color: #E60012;
}

.products-list{
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.products-list .product-item{
    width: 32%;
    margin-right: 2%;
    margin-top: 30px;
    background-color: #FFFFFF;
    cursor: pointer;
}
.products-list .product-item:nth-child(3n){
    margin-right: 0;
}
.products-list .product-item .product-item-video{
    width: 100%;
    aspect-ratio: 1 / 1; /* 1:1 的宽高比，即高度等于宽度 */
    position: relative;
}
.products-list .product-item .product-item-video img{
    width: 100%;
    height: 100%;
}
.products-list .product-item .product-item-video .product-item-video-icon{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(0,0,0,.4);
    display: none;
}
.products-list .product-item .product-item-video .product-item-video-icon img{
    width: 50px;
    height: 50px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.products-list .product-item .product-item-title{
    font-weight: bold;
    font-size: 20px;
    color: #1A1A1A;
    line-height: 30px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    margin: 10px 0;
}
.products-list .product-item .product-item-desc{
    font-size: 16px;
    color: #666666;
    line-height: 21px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}
.products-list .product-item:hover .product-item-video-icon{
    display: block;
}

@media screen and (min-width: 1000px) and (max-width: 1440px) {
    .content{
        width: 900px;
    }
    .category-list{
        margin-top: 20px;
    }
    .products-list .product-item .product-item-title{
        font-size: 16px;
        line-height: 24px;
        margin: 5px 0;
    }

}

@media only screen and (max-width: 999px) {
    .content{
        width: 700px;
    }
    .category-list{
        margin-top: 20px;
    }
    .products-list .product-item .product-item-title{
        font-size: 14px;
        line-height: 21px;
        margin: 2px 0;
    }
    .products-list .product-item .product-item-desc{
        font-size: 12px;
        line-height: 18px;
    }
    .products-list .product-item{
        margin-top: 20px;
    }
    .products-list .product-item .product-item-video .product-item-video-icon img{
        width: 40px;
        height: 40px;
    }
}