.mobile {
    display: none;
}
.web {
    display: none;
}

.st_intro {
    background: url("../images/bg/story_bg.png") no-repeat center;
    background-size: cover;
    width: 100%;
    aspect-ratio: 1920 / 976;
}
.st_intro .inner {
    display: flex;
    flex-direction: column;
    text-align: left;
    gap: 2.4rem;
    padding: 18.02085vw 4rem 0 3.8rem;
    max-width: 137rem;
    margin: 0 auto;
}

.st_intro .en_title {
    font-family: "Poppins";
    font-size: 4.8rem;
    font-weight: 500;
    line-height: 1.5;
    color: var(--green005740);
}
.st_intro .intro_desc {
    font-size: 2.4rem;
    line-height: 1.7;
    font-weight: 400;
    color: var(--black0F0F0F);
}

/* BELIEF */

.st_belief {
    padding: 21rem 0 16.5rem;
}
.st_belief .inner {
    max-width: 132rem;
    padding: 0 4rem;
    margin: 0 auto;
}

.st_belief .belief_row {
    display: flex;
    justify-content: flex-start;
    /* gap: 13.54168vw; */
    align-items: center;
    margin-bottom: 6.4rem;
}

/* 홀수만 flex end */

.st_belief .belief_row:nth-child(even) {
    justify-content: flex-end;
}

.st_belief .belief_row:last-child {
    margin-bottom: 0;
}

.st_belief .belief_img {
    max-width: 26.042vw;
    min-width: 47rem;
    aspect-ratio: 500 / 690;
    overflow: hidden;
}
.st_belief .belief_img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.st_belief .belief_text {
    display: flex;
    flex-direction: column;
    gap: 3.6rem;
}
.st_belief .belief_title {
    font-family: "Poppins";
    font-size: 2.4rem;
    font-weight: 500;
    color: var(--green005740);
    text-decoration: underline;
    text-underline-offset: 1rem;
    text-decoration-thickness: 0.1rem;
}
.st_belief .belief_desc {
    font-size: 2.4rem;
    line-height: 1.7;
    font-weight: 400;
    color: var(--black222222);
}

.st_belief .row_left .belief_text {
    padding-left: 13.54168vw;
}
.st_belief .row_right .belief_text {
    text-align: left;
    padding-right: 13.54168vw;
}

/* HISTORY */
.st_history {
    background-color: var(--whiteF4F8F6);
    padding: 12.8rem 0 7.2rem;
}
.st_history .history_title {
    text-align: center;
    font-family: "Poppins";
    font-size: 2.4rem;
    font-weight: 500;
    color: var(--green005740);
    text-decoration: underline;
    text-underline-offset: 1.4rem;
    text-decoration-thickness: 0.1rem;
}

.history_carousel {
    position: relative;
    margin: 6.3rem auto 0;
}

.history_swiper {
    position: relative;
    padding-bottom: 10.6rem;
}

.hc_track {
    align-items: flex-start;
    max-height: fit-content;
}

.hc_item {
    position: relative;
    z-index: 1;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hc_item .hc_line {
    position: absolute;
    top: 20rem;
    left: 0;
    width: 100%;
    height: 0.1rem;
    z-index: 0;
    background-color: var(--greenA5C9BF);
}

.hc_item .hc_icon {
    width: 100%;
    height: 17.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 7rem;
}
.hc_item .hc_icon img {
    max-width: 28rem;
    width: 100%;
    height: 100%;
    aspect-ratio: 280 / 174;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: grayscale(100%) opacity(0.3);
    transition: filter 0.4s ease;
}

.hc_item::before {
    content: "";
    position: absolute;
    top: 19.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 1.1rem;
    height: 1.1rem;
    border-radius: 50%;
    background-color: var(--greenA5C9BF);
    transition: opacity 0.3s ease;
    z-index: 2;
}

.hc_item::after {
    content: "";
    position: absolute;
    top: 18.4rem;
    left: 50%;
    transform: translateX(-50%);
    width: 2.8rem;
    height: 2.8rem;
    background: url("../images/icons/icon_more.png") no-repeat center;
    background-size: contain;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 3;
}

.hc_item .hc_year {
    font-family: "Poppins";
    font-size: 2.8rem;
    font-weight: 600;
    color: var(--green005740);
    margin-bottom: 1.4rem;
    transition: filter 0.4s ease;
    filter: grayscale(100%) opacity(0.3);
}

.hc_item .hc_desc {
    font-size: 2rem;
    line-height: 1.8;
    color: var(--black0F0F0F);
    transition: filter 0.4s ease;
    font-weight: 500;
    filter: grayscale(100%) opacity(0.3);
}
.hc_item .hc_desc strong {
    font-weight: 700;
    filter: grayscale(100%) opacity(0.3);
    transition: filter 0.4s ease;
}
.hc_item .hc_sep {
    color: var(--gray757575);
    margin: 0.9rem 0;
}

.hc_item .hc_tags {
    margin-top: 1.8rem;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    width: 100%;
}
.hc_item .hc_tags li {
    font-size: 1.8rem;
    line-height: 1.55;
    color: var(--black0F0F0F);
    border: 0.1rem solid var(--greenCEE2DD);
    background-color: var(--whiteFFFFFF);
    border-radius: 1.4rem;
    padding: 1.5rem 0;
    transition: filter 0.4s ease;

    filter: grayscale(100%) opacity(0.3);
}

.hc_item.is-active .hc_icon img,
.hc_item.is-active .hc_tags li,
.hc_item.is-active .hc_desc strong,
.hc_item.is-active .hc_desc,
.hc_item.is-active .hc_year {
    filter: grayscale(0%) opacity(1);
}
.hc_item.is-active::before {
    opacity: 0;
}
.hc_item.is-active::after {
    opacity: 1;
}

.history_progress_wrap {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    margin: 0 auto;
    max-width: 137rem;
    padding: 0 4rem;
}

.history_progress {
    width: 100%;
    height: 0.4rem;
    background-color: var(--grayDBDBDB);
    overflow: hidden;
}

.history_swiper .history_progress_fill {
    display: block;
    height: 100%;
    width: 0%;
    background-color: var(--green005740);
    transition: width 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}