.product-banner {
    width: 100%;
    height: 460px;
    background: url("https://zsf-sys.oss-cn-beijing.aliyuncs.com/home/product-banner.png") no-repeat;
    background-size: cover;
}
.product-title_img {
    display: block;
    margin: 0 auto;
    width: 300px;
}
.product-list {
    width: 1400px;
    margin: 0 auto;
    padding: 120px 0;
}
.product-list__title {
    font-size: 2.75rem;
    font-weight: 500;
    color: #222222;
    line-height: 62px;
    letter-spacing: 1px;
    text-align: center;
}
.product-list__subtitle {
    font-size: 2.375rem;
    font-weight: 400;
    color: #999999;
    line-height: 53px;
    text-align: center;
}
.product-tab {
    position: relative;
    border-bottom: 1px solid #DDDDDD;
    margin: 60px auto;
    overflow: auto;
}
.product-tab__item {
    height: 70px;
    line-height: 70px;
    cursor: pointer;
}
.product-tab__item:hover {
    color: #7B9059;
}
.product-tab__bar {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: #7B9059;
    z-index: 999;
    transition: transform .3s cubic-bezier(.645,.045,.355,1);
    list-style: none;
}
.product-tab__item-active {
    color: #7B9059;
}
.product-list__box {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    padding: 0 12px;
}
.product-list__item{
    margin: 11px;
}
.product-list__item-img-box {
    position: relative;
    width: 436px;
    overflow: hidden;
    border: 1px solid #eee;
    box-sizing: border-box;
}
.product-list__item-img {
    width: 100%;
    height: 310px;
    overflow: hidden;
    object-fit: cover;
    display: block;
}
.product-list__item-img:hover {
    transform: scale(1.1);
    transition: all 0.3s linear;
}
.product-list__item-text {
    font-size: 1.375rem;
    font-weight: 500;
    color: #222222;
    margin: 28px 0;
}

@media screen and (max-width: 768px) {
    .product-banner {
        height: 230px;
    }
    .product-title_img {
        width: 150px;
    }
    .product-list {
        width: 100%;
        padding: 35px 0;
    }
    .product-list__title {
        font-size: 22px;
        line-height: 35px;
    }
    .product-list__subtitle {
        font-size: 19px;
        line-height: 30px;
    }
    .product-tab {
        width: 100vw;
        justify-content: unset;
        margin: 30px auto;
        padding: 0 10px;
    }
    .product-list__box {
        padding: 0;
    }
    .product-list__item {
        margin: 10px 15px;
        width: calc((100% - 45px) / 2);
    }
    .product-list__item:nth-child(2n) {
        margin-left: 0;
    }
    .product-tab__item {
        padding: 0 20px;
        font-size: 14px;
    }
    .product-list__item-img-box {
        width: 100%;
        height: 0;
        padding-bottom: 100%;
        position: relative;
    }
    .product-list__item-img {
        position: absolute;
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .product-list__item-text {
        font-size: 14px;
        margin: 14px 0;
    }
}