.product-list{
    max-width: var(--iw);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    flex-direction: row;
    width: 100%;
}
.product-item{
    position: relative;
    width: 25%;
    border: 1px solid #EEEEEE;
    margin-left: -1px;
    margin-top: -1px;
    opacity: 0;
    animation: none;
}
.product-item.visible {
    opacity: 0;  /* 动画开始前仍为透明 */
    animation: fadeInUp 0.8s ease-out forwards;
    animation-fill-mode: backwards;
}
@keyframes fadeInUp {
    0% {
        opacity: 0;
        -webkit-transform: translate3d(0,100%,0);
        transform: translate3d(0,100%,0)
    }

    to {
        opacity: 1;
        -webkit-transform: translateZ(0);
        transform: translateZ(0)
    }
}
.product-item .product-item-content{
    width: 100%;
    padding: 50px 30px;
    background: #fff;
    height: 100%;
    transition: all 0.3s ease-in-out;
}
.product-item .product-item-title{
    font-weight: bold;
    font-size: 26px;
    color: #333333;
    text-align: center;
}
.product-item .product-item-image{
    width: 100%;
}
.product-item .product-item-image img{
    width: 100%;
    transition: all 0.3s ease-in-out;
}
.product-item .product-item-btn{
    width: 48%;
    max-width: 150px;
    height: 48px;
    background: var(--c);
    border-radius: 24px;
    font-size: 16px;
    color: var(--cw);
    line-height: 46px;
    text-align: center;
    display: block;
    margin: 30px auto 0;
}
.product-item:hover{
    box-shadow: 0px 0px 10px 1px rgba(0,0,0,0.16);
    z-index: 1;
    position: relative;
}
.product-item:hover .product-item-image img{
    transform: scale(1.1);
}
.product-item.visible {
    opacity: 1;
    transform: translateY(0);
}
.product-item:nth-child(4n+2) { animation-delay: 0.1s; }
.product-item:nth-child(4n+3) { animation-delay: 0.2s; }
.product-item:nth-child(4n) { animation-delay: 0.3s; }



.no-data{
    max-width: var(--iw);
    margin: 0 auto;
    text-align: center;
}
.no-data .no-data-title{
    font-weight: bold;
    font-size: 24px;
    color: #333333;
    margin-top: 30px;
}
.no-data .no-data-desc{
    font-size: 18px;
    color: #333333;
    margin-top: 10px;
}
.no-data .no-data-desc a{
    color: var(--c);
}



@media only screen and (min-width: 1000px) and (max-width: 1400px) {
    .product-item{
        width: 33.33%;
    }
}
@media only screen and (min-width: 768px) and (max-width: 1000px) {
    .product-item{
        width: 50%;
    }
}
@media only screen and (max-width: 768px){
    .product-item{
        width: 50%;
    }
    .product-item .product-item-content{
        padding: 10px;
    }
    .product-item .product-item-title{
        font-size: 18px;
    }
    .product-item .product-item-btn{
        min-width: 100px;
        height: 36px;
        line-height: 36px;
        font-size: 14px;
        margin-top: 10px;
    }
    .no-data .no-data-title{
        font-size: 16px;
        margin-top: 10px;
    }
    .no-data .no-data-desc{
        font-size: 14px;
    }
}