/* Main 공통 */
#main .sub_section .title_wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}
#main .sub_section .title_wrap .title {
    font-size: 4rem;
    font-weight: var(--bold);
}
#main .sub_section .title_wrap .arrow_wrap {
    display: flex;
    gap: 0 10px;
}

/* Main section1 */
.main_sec1 {
    height: max(20.83vw, 400px);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 7.81vw 0 4.79vw;
    background-image: url(../img/main_sec1_bg.png);
    background-repeat: no-repeat;
    background-size: cover;
}
.main_sec1 .text_wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px 0;
}
.main_sec1 .text_wrap .title_wrap {
    display: flex;
    gap: 0 20px;
}
.main_sec1 .text_wrap .title {
    font-size: 8rem;
    font-weight: var(--heavy);
    color: var(--white);
}
.main_sec1 .text_wrap .title.gradient {
    color: transparent;
    background: linear-gradient(to right top, #4BB4F2, #0043B2);
    -webkit-background-clip: text;
}
.main_sec1 .text_wrap .desc {
    font-size: 3rem;
    color: var(--white);
    text-align: center;
}

/* Main section2 */
.main_sec2 {
    padding: 40px 0 80px;
    background-image: url(../img/main_sec2_bg.png);
    background-repeat: no-repeat;
    background-size: cover;
    animation: backgroundScroll 8s linear infinite;
}
@keyframes backgroundScroll {
    0% {
        background-position: 0% 0%;
    }
    50% {
        background-position: 100% 0%;
    }
    100% {
        background-position: 0% 0%;
    }
}
.main_sec2 .sub_section {
    margin: 0 auto 45px;
}
.main_sec2 .sub_section:last-child {
    margin-bottom: 0;
}
.main_sec2 .sub_section .category_wrap {
    overflow: hidden;
}
.main_sec2 .sub_section .categories {
    width: 100%;
    display: flex;
}
.main_sec2 .sub_section .categories:has(.category) {
    border-left: 1px solid var(--gray_border);
}
.main_sec2 .sub_section .categories .category {
    flex: 0 0 25%;
    border: 1px solid var(--gray_border);
    border-left-style: hidden;
    background-color: var(--white);
    transition: all 300ms ease-in-out;
    cursor: pointer;
}
.main_sec2 .sub_section .categories .category a {
    height: 100%;
}
.main_sec2 .sub_section .category[data-type="PG01"]:hover,
.main_sec2 .sub_section .category[data-type="PT01"]:hover {
    background-color: var(--blue);
}
.main_sec2 .sub_section .category[data-type="PG02"]:hover,
.main_sec2 .sub_section .category[data-type="PT02"]:hover {
    background-color: var(--yellow);
}
.main_sec2 .sub_section .category[data-type="PG03"]:hover {
    background-color: var(--sky_blue);
}
.main_sec2 .sub_section .category[data-type="PG04"]:hover {
    background-color: var(--green);
}
.main_sec2 .categories .sub_title_area {
    padding: 25px 0;
    margin: 0 10px 0 25px;
}
.main_sec2 .categories .sub_title_area .index_wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}
.main_sec2 .category .sub_title_area .index {
    padding: 5px 10px;
    border-radius: 10px;
    font-size: 2rem;
    font-weight: var(--bold);
    color: var(--white);
    transition: all 300ms ease-in-out;
}
.main_sec2 .category[data-type="PG01"] .sub_title_area .index,
.main_sec2 .category[data-type="PT01"] .sub_title_area .index {
    background-color: var(--blue);
}
.main_sec2 .category[data-type="PG02"] .sub_title_area .index,
.main_sec2 .category[data-type="PT02"] .sub_title_area .index  {
    background-color: var(--yellow);
}
.main_sec2 .category[data-type="PG03"] .sub_title_area .index {
    background-color: var(--sky_blue);
}
.main_sec2 .category[data-type="PG04"] .sub_title_area .index {
    background-color: var(--green);
}
.main_sec2 .category:hover .sub_title_area .index {
    background-color: var(--dark_gray);
}
.main_sec2 .category .sub_title_area .sub_title_wrap {
    position: relative;
    width: 100%;
    height: 12.65vw;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.main_sec2 .category .sub_title_area .sub_title {
    font-size: 2.8rem;
    font-weight: var(--bold);
    word-break: keep-all;
}
.main_sec2 .category:hover .sub_title_area .sub_title {
    color: var(--white);
}
.main_sec2 .category .sub_title_area .hover_wrap .pictogram {
    height: min(120px, 6.25vw);
}
.main_sec2 .category .sub_title_area .hover_wrap .pictogram img {
    max-height: 100%;
    object-fit: contain;
    object-position: left;
}
.main_sec2 .category .sub_title_area .hover_wrap .desc_wrap {
    width: 100%;
    display: none;
}
.main_sec2 .category:hover .sub_title_area .hover_wrap .desc_wrap {
    display: flex;
}
.main_sec2 .category:hover .sub_title_area .hover_wrap .pictogram {
    display: none;
}
.main_sec2 .category .hover_wrap .desc_wrap {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 9.375vw;
    display: flex;
    flex-direction: column;
    gap: 10px 0;
}
.main_sec2 .category .sub_title:has(br) + .hover_wrap .desc_wrap {
    height: 7.65vw;
}
.main_sec2 .category .hover_wrap .desc_wrap .desc {
    display: flex;
    align-items: center;
    gap: 0 10px;
    color: var(--white);
}
.main_sec2 .category .hover_wrap .desc_wrap .desc:has(.ellips) {
    align-items: baseline;
}
.main_sec2 .category .hover_wrap .desc_wrap .desc_title {
    min-width: 63px;
    font-size: 1.8rem;
    font-weight: var(--bold);
    color: rgba(255, 255, 255, 0.7);
}
.main_sec2 .category .hover_wrap .desc_wrap .desc_detail {
    font-size: 1.8rem;
}
.main_sec2 .category .hover_wrap .desc_wrap .desc_detail.ellips {
    width: 200px;
    display: -webkit-box;
    word-wrap: break-word;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    overflow: hidden;
    line-height: 150%;
}

/* Main Section3 */
.main_sec3 {
    background-color: var(--gray);
}
.main_sec3 .sub_section {
    width: 100%;
    display: flex;    
}
.main_sec3 .sub_section .board {
    flex: 1 1 0;
    padding: 40px 0 50px;
}
.main_sec3 .sub_section .board:first-child {
    border-right: 1px solid rgba(0, 0, 0, 0.1);
}
.main_sec3 .sub_section .board .title {
    margin-bottom: 40px;
    text-align: center;
    font-size: 4rem;
    font-weight: var(--bold);
    color: var(--black);
}
.main_sec3 .sub_section .board .slide_area {
    position: relative;
}
.main_sec3 .sub_section .board .slide_wrap {
    position: relative;
    width: 31.25vw;
    margin: auto;
    overflow: hidden;
    z-index: 1;
}
.main_sec3 .sub_section .board .slides {
    height: min(400px, 20.83vw);
    width: max-content;
    display: flex;
}
.main_sec3 .sub_section .board .slide {
    width: 31.25vw;
}
.main_sec3 .sub_section .board .slide a {
    width: 100%;
    height: 100%;
}
.main_sec3 .sub_section .board .slide img {
    height: 100%;
    object-fit: fill;
}
.main_sec3 .sub_section .board .slide_area .btn_wrap {
    display: flex;
    gap: 0 33.33vw;
    position: absolute;
    top: calc(50% - 45.5px);
    left: 50%;
    transform: translateX(-50%);
}

.main_sec3 .sub_section .board .slide_area .story_title_wrap {
    width: 31.25vw;
    margin: 20px auto 0;
}
.main_sec3 .sub_section .board .slide_area .story_title {
    display: none;
}
.main_sec3 .sub_section .board .slide_area .story_title a {
    font-size: 2.4rem;
    font-weight: var(--bold);
    text-overflow: ellipsis;
    white-space: nowrap;
    cursor: pointer;
    overflow: hidden; 
}

.main_sec3 .sub_section .board .slide_area .story_title:hover a {
    color: var(--blue);
    text-decoration: underline;
}
.main_sec3 .sub_section .board .notice_board {
    width: 39.58vw;
    height: calc(100% - 198px);
    overflow: hidden;
    margin-left: 5.21vw;
}
.main_sec3 .sub_section .board .notice_board .row {
    padding: 30px 14px 30px 0;
    display: flex;
    justify-content: space-between;
    border-top: 1px solid rgba(153, 153, 153, 0.23);
}
.main_sec3 .sub_section .board .notice_board .row:only-child,
.main_sec3 .sub_section .board .notice_board .row:last-child {
    border-bottom: 1px solid rgba(153, 153, 153, 0.23);
}
.main_sec3 .sub_section .board .notice_board .content_title {
    display: block;
    width: calc(100% - 165px);
    font-size: 2.4rem;
    font-weight: var(--bold);
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden; 
}
.main_sec3 .sub_section .board .notice_board .row:hover .content_title {
    color: var(--blue);
    text-decoration: underline;
}
.main_sec3 .sub_section .board .notice_board .content_title + .date {
    font-size: 2rem;
    color: #666;
}

/* Main Section4 */
.main_sec4 {
    background-image: url(../img/main_sec4_bg.png);
    background-repeat: no-repeat;
    background-size: cover;
}
.main_sec4 .sub_section {
    margin: auto;
    padding: 50px 0;
}
.main_sec4 .sub_section .title_wrap .title {
    color: var(--white);
}
.main_sec4 .sub_section .card_wrap .cards {
    display: flex;
    width: 100%;
    overflow: hidden;
}
.main_sec4 .sub_section .card_wrap .card {
    width: 32.5%;
    margin-right: 16px;
    height: 100%;
    min-height: 10.10vw;
    position: relative;
    border: 1px solid var(--white);
}
.main_sec4 .sub_section .card_wrap .card:before {
    content: "";
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    transition: all 300ms ease-in-out;
}
.main_sec4 .sub_section .card_wrap .card:hover::before {
    background-color: var(--white);
    backdrop-filter: unset;
}
.main_sec4 .sub_section .card_wrap .card a {
    position: relative;
    padding: 25px;
    height: 100%;
    z-index: 100;
}
.main_sec4 .sub_section .card_wrap .card .question {
    margin-bottom: 20px;
    display: flex;
    gap: 0 3px;
    font-size: 2.4rem;
    font-weight: var(--bold);
    color: var(--white);
}
.main_sec4 .sub_section .card_wrap .card .question .title {
    display: inline-block;
    width: 100%;
    display: -webkit-box;
    word-wrap: break-word;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    overflow: hidden;
    line-height: 150%;
}
.main_sec4 .sub_section .card_wrap .card:hover .question {
    color: var(--black);
}
.main_sec4 .sub_section .card_wrap .card .answer {
    max-width: 93%;
    max-height: calc(100% - 30px);
    height: 92px;
    visibility: hidden;
    font-size: 2rem;
    color: var(--dark_gray);
    overflow: hidden;
}
.main_sec4 .sub_section .card_wrap .card .answer + .icon {
    float: right;
    transform: translateY(-10px);
}
.main_sec4 .sub_section .card_wrap .card:hover .answer {
    visibility: visible;
}

@media screen and (max-width: 1630px) {
    .main_sec2 .category .hover_wrap .desc_wrap .desc_title,
    .main_sec2 .category .hover_wrap .desc_wrap .desc_detail {
        font-size: 14px;
    }
    .main_sec2 .category .hover_wrap .desc_wrap {
        gap: 2px 0;
    }
}

@media screen and (max-width: 1440px) {
    .main_sec2 .categories .sub_title_area {
        padding: 15px 0;
        margin: 0 10px;
    }
    .main_sec2 .category .sub_title_area .sub_title {
        font-size: 2.5rem;
    }
    .main_sec2 .categories .sub_title_area {
        margin: 0 10px;
    }
}
@media screen and (max-width: 1024px) {
    .main_sec2 .category .sub_title_area .sub_title {
        font-size: 2rem;
    }
}

@media screen and (max-width: 768px) {
    /* Font Size 모음 */
    .main_sec1 .text_wrap .desc {
        font-size: 20.625px;
    }
    .main_sec2 .category .sub_title_area .sub_title {
        font-size: 24px;
    }

    .main_sec1 {
        height: 64.1vw;
        padding-top: 15vw;
    }
    .main_sec2 {        
        background-size: 100%;
        background-position: center;
    }
    .main_sec2 .category .sub_title_area .hover_wrap .pictogram {
        display: none;
    }
    .main_sec2 .categories .sub_title_area {
        margin: 0;
        padding: 20px;
    }
    .main_sec2 .sub_section .category_wrap {
        height: min(800px, 100vw);
        border-bottom: 1px solid var(--gray_border);
    }
    .main_sec2 .sub_section .categories {
        flex-wrap: wrap;
        border: 1px solid var(--gray_border);
        border-right-style: unset;
        border-bottom-style: unset;
    }
    .main_sec2 .sub_section .categories .category {
        flex: unset;
        width: 100%;
        height: min(400px, 50vw);
        border: 0;
        border-bottom: 1px solid var(--gray_border);
    }
    .main_sec2 .sub_section .categories .category:last-child {
        border-right-style: hidden;
    }
    .main_sec2 .sub_section .category_wrap:has(.category[data-type="PT01"]),
    .main_sec2 .sub_section .category_wrap:has(.category[data-type="PT02"]) {
        height: min(460px, 100vw);
        overflow: hidden;
    }
    .main_sec2 .categories .category[data-type="PT01"],
    .main_sec2 .categories .category[data-type="PT02"] {
        height: min(230px, 50vw);
    }
    .main_sec2 .category .sub_title_wrap .sub_title {
        margin-bottom: 30px;
    }
    .main_sec2 .category .sub_title_area .hover_wrap .desc_wrap {
        display: block;
        position: relative;
    }
    .main_sec2 .category .hover_wrap .desc_wrap {
        gap: 0;
    }
    .main_sec2 .category .hover_wrap .desc_wrap .desc {
        margin-bottom: 5px;
    }
    .main_sec2 .category .hover_wrap .desc_wrap .desc_title {
        min-width: 65px;
        color: #666;
    }
    .main_sec2 .category .hover_wrap .desc_wrap .desc_detail {
        color: var(--dark_gray);
    }
    .main_sec2 .category .hover_wrap .desc_wrap .desc_detail.ellips {
        width: 100%;
    }
    .main_sec2 .category .sub_title_area .index + .arrow.right {
        background-image: url(../img/mo_arrow_right_black.png);
        background-repeat: no-repeat;
        background-size: cover;
    }
    .main_sec3 .sub_section {
        flex-direction: column;
    }
    .main_sec3 .sub_section .board:first-child {
        border-right-style: hidden;
    }
    .main_sec3 .sub_section .board:last-child {
        border-top: 1px solid rgba(0, 0, 0, 0.1);
    }
    .main_sec3 .sub_section .board .notice_board {
        width: 100%;
        height: auto;
        margin: 0;
    }
    .main_sec3 .sub_section .board .notice_board .row {
        padding: 30px 15px;
    }
    .main_sec3 .sub_section .board .notice_board .content_title {
        width: calc(100% - 190px);
    }
    .main_sec3 .sub_section .board .slides {
        height: min(390px, 50vw);
    }
    .main_sec3 .sub_section .board .slide_wrap,
    .main_sec3 .sub_section .board .slide {
        width: 75vw;
    }
    .main_sec3 .sub_section .board .slide_area .btn_wrap {
        width: calc(100% + 30px);
        top: calc(50% - 30px);
        justify-content: space-between;
    }
    .main_sec3 .sub_section .board .slide_area .story_title_wrap {
        width: 75vw;
        margin: 85px auto 0;
    }
    .main_sec4 .sub_section {
        padding: 70px 20px;
    }
    .main_sec4 .sub_section .card_wrap {
        height: max(360px, 46.15vw);
        overflow: hidden;
    }
    .main_sec4 .sub_section .card_wrap .cards {
        flex-direction: column;
    }
    .main_sec4 .sub_section .card_wrap .card {
        position: relative;
        width: 100%;
        margin: 0 0 30px 0;
        backdrop-filter: unset;
    }
    .main_sec4 .sub_section .card_wrap .card:last-child {
        margin: 0;
    }
    .main_sec4 .sub_section .card_wrap .card a {
        height: 144px;
        padding: 10px;
    }
    .main_sec4 .sub_section .card_wrap .card .answer {
        visibility: visible;
        overflow: hidden;
        color: var(--white);
    }
    .main_sec4 .sub_section .card_wrap .card a .icon {
        display: none;
    }
    #main .sub_section .btn.radius_btn {
        width: 57.14vw;
        max-width: 400px;
        margin: 50px auto 0;
        padding: 33.5px 0;
    }
}

@media screen and (max-width: 540px) {
    .main_sec1 {
        height: 85vw;
        padding: 16vw 5vw 0;
    }
    .main_sec1 .text_wrap .title_wrap {
        gap: 0 10px;
    }
    .main_sec2 {
        padding: 20px 0 40px;
    }
    .main_sec2 .sub_section .category_wrap {
        height: 560px;
        border-right: 1px solid var(--gray_border);
    }
    .main_sec2 .sub_section .categories .category {
        height: 280px;
    }
    .main_sec2 .sub_section .category_wrap:has(.category[data-type="PT01"]),
    .main_sec2 .sub_section .category_wrap:has(.category[data-type="PT02"]) {
        height: 440px;
    }
    .main_sec2 .categories .category[data-type="PT01"],
    .main_sec2 .categories .category[data-type="PT02"] {
        height: 220px;
    }
    .main_sec3 .sub_section .board {
        padding: 20px 0 30px;
    }
    .main_sec3 .sub_section .board .title {
        margin-bottom: 20px;
    }
    .main_sec3 .sub_section .board .slide_area .story_title_wrap {
        margin: 20px auto 0;
    }
    .main_sec3 .sub_section .board .notice_board .row {
        padding: 15px;
    }
    .main_sec3 .sub_section .board .notice_board .content_title {
        width: calc(100% - 100px);
    }
    .main_sec4 .sub_section {
        padding: 30px 20px;
    }
    .main_sec4 .sub_section .card_wrap .card {
        margin-bottom: 20px;
    }
    /* Hover */    
    .main_sec2 .sub_section .categories .category:hover {
        background-color: var(--white);
    }
    .main_sec2 .category[data-type="PG01"]:hover .sub_title_area .index,
    .main_sec2 .category[data-type="PT01"]:hover .sub_title_area .index {
        background-color: var(--blue);
    }
    .main_sec2 .category[data-type="PG02"]:hover .sub_title_area .index,
    .main_sec2 .category[data-type="PT02"]:hover .sub_title_area .index  {
        background-color: var(--yellow);
    }
    .main_sec2 .category[data-type="PG03"]:hover .sub_title_area .index {
        background-color: var(--sky_blue);
    }
    .main_sec2 .category[data-type="PG04"]:hover .sub_title_area .index {
        background-color: var(--green);
    }
    .main_sec2 .category:hover .arrow.change {
        background-image: url(../img/arrow_change.png);
    }
    .main_sec2 .category:hover .sub_title_area .sub_title {
        color: var(--black);
    }
}

@media screen and (max-width: 400px) {
    .main_sec1 .text_wrap .title_wrap {
        flex-direction: column;
        align-items: center;
    }
}