.color_text {
    color: #FF5500;
}

section .title_wrap {
    font-size: 24px;
    font-weight: 500;
    display: flex;
}

section .title_wrap .bubble_icon {
    width: 34px;
    height: 34px;
    margin-right: 18px;
}

@media (max-width:1000px) {
    section .title_wrap {
        font-size: 20px;
        display: block;
    }

    section .title_wrap .bubble_icon {
        width: 24px;
        height: 24px;
        margin-right: 12px;
    }
}

/*########### video_section ########*/
html,
body {
    margin: 0;
    padding: 0;
    height: 100%;
}

.video_section {
    position: relative;
    width: 100%;
    height: 80vh;
    overflow: hidden;
}

.video_section .center_inner {
    position: relative;
}

.video_section .video-background {
    position: absolute;
    top: 0px;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.video_section .video-background iframe {
    position: absolute;
    top: 40%;
    left: 50%;
    width: 100%;
    /* 16:9 비율 - 가로 우선 기준 */
    height: 100%;
    /* min-width: 100vw;
  min-height: 56.25vw; */
    transform: translate(-50%, -40%);
    pointer-events: none;
    border: 0;
}

/* 모바일 전용: max-width 768px 이하에서만 적용 */
@media (max-width: 768px) {

    .video_section {
        position: relative;
        width: 100%;
        /* height: 38%; */
        overflow: hidden;
    }

    .video_section .video-background {
        /* 절대 위치 대신 비율 박스로 전환 */
        /* position: relative;
        width: 100%;
        height: 0;
        padding-top: 56.25%; */
        /* 9/16 = 0.5625 → 56.25% */
        overflow: hidden;
    }

    .video_section .video-background iframe {
        /* 비율 박스에 꽉 채우기 */
        /* position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        transform: none;
        min-width: 0;
        min-height: 0; */
    }
}

.video_section .text_wrap_02 {
    position: absolute;
    right: 0;
    bottom: 10%;
    text-align: right;
}

.video_section .text_wrap_02>img {
    width: 10%;
}

.video_section .text_wrap_02>p {
    color: #fff;
    line-height: 2;
}

/* ======= 반응형 설정 ======= */
@media (min-width: 1001px) {
    .video_section {
        height: 100vh;
    }

    .video_section .video-background iframe {
        width: 100%;
    }
}

@media (max-width: 800px) {
    .video_section {
        /* height: 600px; */
        height: 60vh;
    }

    .video_section .video-background iframe {
        width: 100%;
    }
}



@media (max-width: 670px) {
    .video_section {
        height: 50vh;
    }

    .video_section .video-background iframe {
        width: 88.89vh;
    }
}

@media (max-width: 540px) {
    .video_section {
        /* height: 500px; */
        height: 40vh;

    }

    .video_section .video-background iframe {
        width: 71.11vh;
    }
}

@media (max-width: 400px) {
    .video_section {
        height: 30vh;

    }

    .video_section .video-background iframe {
        width: 53.33vh;
    }


}

@media (max-width: 480px) {
    .video_section {
        /* height: 400px; */
    }

}

/*########### about ###########*/
section.about {
    background-color: #000;
    color: #fff;
}

/* first_wrap */
.about .first_wrap {
    display: flex;
    align-items: center;
    gap: 8%;
    position: relative;
}

.about .first_wrap .bubble_wrap {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 260px;
}

.about .first_wrap .bubble_wrap img {
    width: 100%;
    position: absolute;
    z-index: 1;
}

.about .first_wrap .bubble_wrap p {
    position: absolute;
    z-index: 2;
    font-size: 24px;
    font-weight: 500;
    text-align: center;
}

.about .first_wrap .text_wrap {
    font-size: 20px;
    font-weight: 300;
}

.about .about_bg_img_01 {
    position: absolute;
    right: 0;
    top: 150%;
    width: 45%;
}

/* second_wrap */
.about .second_wrap {
    padding-top: 20%;
    position: relative;
}

.about .second_wrap ul li {
    margin-bottom: 80px;
}

.about .second_wrap ul li .title_wrap .icon_img {
    width: 70px;
    position: relative;
    top: -26px;
    margin-left: 20px;
}

.about .second_wrap ul li .title_wrap .icon_img.img_02 {
    top: -18px;
}

.about .second_wrap ul li>p {
    margin-left: 52px;
    font-weight: 300;
    line-height: 2;
}

.about .about_bg_img_02 {
    position: absolute;
    right: 14%;
    top: 95%;
    width: 55%;
}

/* third_wrap */
.about .third_wrap {
    padding-top: 10%;
    text-align: right;
}

.about .third_wrap>img {
    width: 10%;
}

.about .third_wrap>p {
    line-height: 2;
}

/*######### highlights #########*/
section.highlights {
    background-color: #000;
    position: relative;
    color: #fff;
}

.highlights .background_img {
    background-image: url(../images/highlights_bg.png);
    background-size: cover;
    background-position: center;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.highlights .center_inner {
    display: flex;
    justify-content: space-between;
    position: relative;
    z-index: 2;
}

.highlights .title_wrap {
    min-width: 245px;
}

.highlights .title_wrap .mobile_view {
    display: none;
}

.highlights ul {
    display: flex;
    justify-content: flex-end;
    width: 75%;
}

.highlights ul>li {
    border-left: 2px solid #FF5500;
    padding-left: 20px;
    line-height: 1;
    width: 32%;
}

.highlights ul>li>p {
    font-weight: 600;
    font-size: 20px;
    line-height: 1.2;
    height: 120px;
}

.highlights ul>li>p .small_text {
    font-size: 15px;
    font-weight: 400;
}

.highlights ul>li .big_text {
    font-size: 60px;
    font-weight: 700;

}

/*########## sponsors ############*/
section.sponsors {
    background-color: #000;
    color: #fff;
}

.sponsors .center_inner {
    display: flex;
    justify-content: space-between;
}

.sponsors .logos {
    width: 75%;
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
    position: relative;
    z-index: 1;
}

.sponsors .logos .background {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    top: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 100%);
    pointer-events: none;
    z-index: 2;
}

.sponsors .logos img {
    height: 34px;
}

/*######### grid_contents #########*/
section.grid_contents .contents_wrap {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.grid_contents .contents_wrap .items {
    border-radius: 14px;
    overflow: hidden;
    display: block;
    margin-bottom: 20px;
}

.grid_contents .contents_wrap .items .img_wrap {
    background-position: center;
    background-size: cover;
    width: 100%;
}

.grid_contents .contents_wrap .items .text_wrap {
    font-size: 15px;
    font-weight: 500;
}

.grid_contents .contents_wrap .items .text_wrap span {
    font-size: 12px;
    font-weight: 300;
}

/* grid_contents.news */
.grid_contents.news .contents_wrap .items:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    transition: 0.3s;
}

.grid_contents.news .contents_wrap .items .img_wrap {
    background-image: url(../images/news_items_ex_img.png);
    height: 220px;
}

.grid_contents.news .contents_wrap .items .text_wrap {
    background-color: #f5f5f5;
    padding: 15px 24px;
}




/*######## pagination ########*/
section.pagination .numbers {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 30px;
}

.pagination .numbers a {
    text-decoration: none;
    color: #444;
    font-size: 14px;
    width: 28px;
    height: 28px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    transition: background 0.3s, color 0.3s;
}

.pagination .numbers a.arrow {
    color: #b9b9b9;
}

.pagination .numbers .page.current {
    background-color: #000;
    color: #fff;
    font-weight: bold;
}

.pagination .numbers a:hover:not(.current) {
    background-color: #eee;
}


/*######### sub_menu #########*/
section.sub_menu {
    padding: 4% 0px;
}

.sub_menu ul {
    display: flex;
    flex-wrap: wrap;
    gap: 3%;
    font-weight: 500;
}

.sub_menu ul li a:hover {
    cursor: pointer;
    color: #FF5500;
    transition: 0.3s;
}

/*########## media #########*/
@media (max-width:1200px) {
    .grid_contents.news .contents_wrap .items .img_wrap {
        height: 180px;
    }
}

@media (max-width:1000px) {
    .video_section .text_wrap {
        font-size: 40px;
    }

    .about .first_wrap .bubble_wrap {
        width: 180px;
    }

    .about .first_wrap .bubble_wrap p {
        font-size: 20px;
    }

    .about .first_wrap .text_wrap {
        font-size: 18px;
    }

    /* .about .about_bg_img_01 {
        top: 150%;
        width: 55%;
    } */
    .about .second_wrap {
        padding-top: 26%;
    }

    .about .second_wrap ul li {
        margin-bottom: 60px;
    }

    .about .second_wrap ul li .title_wrap .icon_img {
        width: 50px;
        top: -18px;
    }

    .about .second_wrap ul li>p {
        margin-left: 36px;
    }

    .about .about_bg_img_02 {
        top: 90%;
        right: 16%;
    }

    .about .third_wrap {
        padding-top: 14%;
    }

    .about .third_wrap>img {
        width: 8%;
        min-width: 50px;
    }

    .video_section .text_wrap_02>img {
        width: 8%;
        min-width: 50px;
    }

    .highlights .center_inner {
        display: block;

    }

    .highlights .title_wrap {
        min-width: 0;
        margin-bottom: 50px;
    }

    .highlights .title_wrap .mobile_view {
        display: flex;
    }

    .highlights .title_wrap .pc_view {
        display: none;
    }

    .highlights ul {
        width: 100%;
        justify-content: center;
    }

    .highlights ul>li .big_text {
        font-size: 50px;
    }

    .sponsors .center_inner {
        display: block;
    }

    .sponsors .title_wrap {
        margin-bottom: 50px;
    }

    .sponsors .logos {
        width: 100%;
    }

    .grid_contents .contents_wrap .items .text_wrap {
        font-size: 13px;
    }

    .grid_contents.works .contents_wrap .items .img_wrap {
        height: 320px;
    }
}

@media (max-width:900px) {
    section.grid_contents .contents_wrap {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid_contents.news .contents_wrap .items .img_wrap {
        height: 160px;
    }

}

@media (max-width:800px) {
    .about .first_wrap {
        display: block;
    }

    .about .first_wrap .bubble_wrap {
        display: none;
    }

    .about .about_bg_img_02 {
        top: 95%;
    }

    .grid_contents.news .contents_wrap .items .img_wrap {
        height: 180px;
    }

}

@media (max-width:600px) {
    .about .about_bg_img_02 {
        top: 100%;
        right: 10%;
        width: 65%;
    }

    .about .third_wrap {
        padding-top: 24%;
    }

    .highlights ul {
        display: block;
    }

    .highlights ul>li {
        width: 90%;
        display: flex;
        justify-content: space-between;
        margin-bottom: 40px;
    }

    .highlights ul>li>p {
        height: auto;
    }

    .highlights ul>li .big_text {
        font-size: 40px;
    }

    section.grid_contents .contents_wrap {
        grid-template-columns: repeat(1, 1fr);
    }

    .grid_contents.news .contents_wrap .items .img_wrap {
        height: 240px;
    }

}

@media (max-width:400px) {
    .about .about_bg_img_01 {
        top: 120%;
    }

    .grid_contents.news .contents_wrap .items .img_wrap {
        height: 180px;
    }
}