.product_box{
    width: 100%;
    background: #F6F6F6;
    padding: calc(20px + 3rem) 0;
}
.product_nav{
    width: 100%;
    display: flex;
    justify-content: center;
    gap: calc(10px + 1rem);
    border-bottom: 1px #dadada solid;
    
}
.product_item{
    width: calc(80px + 10rem);
    font-size: calc(10px + 0.5rem);
    color: #333333;
    font-weight: bold;
    text-align: center;
    padding-bottom: calc(10px + 0.5rem);
}

.product_list{
    max-width: 1600px;
    width: 90%;
    margin: auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    row-gap: calc(10px + 1rem);
    margin-top: calc(15px + 1.5rem);
}

.product_item_act{
    color: #f7b014;
    border-bottom: 2px #f7b014 solid;
}

@media screen and (max-width: 1100px){
    .product_item{
        font-size: calc(10px + 1rem);
    }
    .product_item{
        width: auto;
    }
    .product_nav {
        gap: calc(40px + 1rem);
    }

    .product_list .index_2_item {
        width: 48.5% !important;

    }
}