.sub_portfolio .portfolio {
    gap: 4rem;
    overflow: hidden;
}

.sub_portfolio .portfolio-item {
    width: calc((100% - 4rem) / 2);
}

/* .sub_portfolio .portfolio-item:nth-child(even){
    top: -7rem
} */

.sub_portfolio .portfolio-image {
    width: 100%; /* 이미지는 항상 100% 너비 */
}

.sub_portfolio .portfolio-details {
    display: flex;
    margin-top:1.6rem;
    justify-content: space-between;
}
.sub_portfolio .portfolio-text {
    display: flex;
    flex-direction: column;
    gap:0.8rem;
}
.sub_portfolio .portfolio-category {
    color:#777777;
    font-size: 1.6rem;
}

.sub_portfolio .portfolio-title {
    color:#333333;
    font-weight: 600;
    font-size: 2rem;
}
.sub_portfolio .portfolio-date {
    color:#666666;
    font-size: 1.6rem;
    font-weight: 400;
    font-family: "Montserrat";
}

.sub_portfolio .portfolio .empty_list {width: 100%}

.sub_portfolio .sec01 .title_wrap{
    margin-bottom: 6rem;
}

.sub_portfolio .sec01 ul{
    display: flex;
    justify-content: center;
    margin-bottom: 6rem;
    gap: 1.6rem;
}

.sub_portfolio .sec01 li {
    margin: 1.6rem;
    font-size: 1.8rem;
    cursor: pointer;
}

.sub_portfolio .sec01 li:hover{
    color: #104D39;
    font-weight: bold;
}
.sub_portfolio .sec01 li.active {
    color: #104D39;
    font-weight: bold;
}
.sub_portfolio .sec01 li.active::after{
    position: absolute;
    content: '';
    width: 100%;
    height: 2px;
    bottom: 2px;
    left: 50%;
    z-index: -1;
    background-color: #F9D143;
    transform: translateX(-50%);
    display: block;
}

.sub_portfolio .img_wrap{
    position: relative;
}

.sub_portfolio .img_wrap .hover-txt{
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(0,0,0,0.5);
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 3rem;
    font-weight: 500;
    opacity: 0;
    transition: 0.4s;
}
.sub_portfolio .img_wrap .hover-txt:hover{
    opacity: 1;
}
.sub_portfolio .img_wrap .hover-txt span{
    display: block;
    max-width: 95%;
    text-align: center;
    line-height: 4.5rem;
}

.sub_portfolio .more_btn{
    font-family: inherit;
    font-size: 1.6rem;
    font-weight: 600;
    padding: 0 2.4rem;
    height: 4.8rem;
    border: 1px solid #D9D9D9;
    border-radius: 2.4rem;
    margin: 2rem auto 0;
    cursor: pointer;
}

.sub_portfolio .more_btn a{
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}



@media (max-width:880px) {
    .sub_portfolio .portfolio{
        gap: 2rem 1.6rem;
        margin-bottom: 2rem
    }
    .sub_portfolio .portfolio-item{
        width: calc((100% - 1.6rem) / 2)
    }
    /* .sub_portfolio .portfolio-item:nth-child(even){
        top: 0
    } */
    .sub_portfolio .img_wrap {
        height: 17.8rem;
    }
    .sub_portfolio .img_wrap img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .sub_portfolio .portfolio-details{
        flex-direction: column-reverse;
        gap: 0;
    }
    .sub_portfolio .portfolio-text{
        gap: 0.4rem;
    }
    .sub_portfolio .portfolio-date{
        font-size: 1.2rem;
    }
    .sub_portfolio .portfolio-category{
        font-size:  1.2rem;
    }
    .sub_portfolio .portfolio-title{
        font-size: 1.4rem;
    }
    .sub_portfolio .img_wrap .hover-txt {
        font-size: 1.2rem;
        line-height: 1.8rem
    }
    .sub_portfolio .img_wrap .hover-txt span {
        line-height: 1.8rem
    }
    .sub_portfolio .more_btn{
        width: 12.5rem;
        height: 4rem;
        font-size: 1.4rem;
        margin: 0 auto;
    }

    .sub_portfolio .sec01 ul{
        flex-direction: row;
        width: auto;
        overflow-x: scroll;
        gap: 2.4rem;
        justify-content: space-around;
    }
    .sub_portfolio .sec01 ul li{
        margin: 0;
        font-size: 1.6rem;
        word-break: keep-all;
        white-space: nowrap;
        height: 4rem;
        line-height: 4rem;
    }

    .sub_portfolio .sec01 ul li:first-child {
        margin-left: 2rem;
    }
    .sub_portfolio .sec01 ul li:last-child {
        margin-right: 2rem;
    }

    .sub_portfolio .sec01 li::after{
        bottom: 1.6rem;
    }
}