@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@100;200;300;400;500;600;700;800;900&display=swap');

body {
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 18px;
    line-height: 1.5;
    background-color: #f1f1f1;
}

section,
footer {
    display: flex;
    justify-content: center;
}

.center_inner {
    width: 89%;
    max-width: 1560px;
    font-size:1.15em;
    
}

section .center_inner {
    background-color: #fff;
    padding: 60px 2%;
}

h2 {
    font-size: 46px;
    font-weight: 700;
    margin-bottom: 30px;
}

@media (max-width:1000px) {
    body {
        font-size: 15px;
    }

    .center_inner {
        width: 90%;
    }

    section .center_inner {
        padding: 40px 2%;
    }

    h2 {
        font-size: 24px;
    }
}

@media (max-width:500px) {
    h2 {
        font-size: 22px;
    }
}

/*############ main_visual ############*/
section.main_visual {
    padding: 5% 0px 300px 0px;
    position: relative;
    background-image: url(../images/main_visual_bg.png);
    background-position: center;
    background-size: cover;
}

/* 
section.main_visual .bg_wrap {

    display: flex;
    justify-content: center;
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 350px;
    max-width: 1560px;
} */

section.main_visual .center_inner {
    padding-top: 0px;
    display: flex;
    justify-content: center;
    background-color: transparent;

}

section.main_visual .text_wrap {
    width: 70%;
}

section.main_visual .main_visual_top_img {
    width: 40%;
    margin-bottom: 25px;
}

section.main_visual .main_visual_h1_img {
    width: 100%;
}

section.main_visual .main_visual_h1_img img {
    width: 100%;
}

section.main_visual .main_visual_bottom_img {
    width: 62%;
    margin-top: 25px;
}

/*######### speakers_preview #########*/
.speakers_preview h2>span {
    font-weight: 200;
}

section.speakers_preview .speakers_swiper .speakers_swiper_item .img_wrap {
    width: 100%;
    display: flex;
    justify-content: center;
    margin-bottom: 10px;
}

section.speakers_preview .speakers_swiper .speakers_swiper_item .img_wrap img {
    border-radius: 50%;
    border: 1px solid #bfbfbf;
    width: 90%;
}

section.speakers_preview .speakers_swiper .speakers_swiper_item .text_wrap {
    text-align: center;
    font-size: 12px;
    width: 100%;
}

section.speakers_preview .speakers_swiper .speakers_swiper_item .text_wrap .name,
.eng_name {
    font-weight: 700;
    display: block;
    font-size: 14px;
}

body>section.speakers_preview>div>div>div.swiper-pagination.swiper-pagination-clickable.swiper-pagination-bullets.swiper-pagination-horizontal {
    position: static;
}

section.speakers_preview .speakers_swiper .swiper_btn_wrap {
    display: flex;
    justify-content: center;
    gap: 14px;
    margin-top: 24px;
}

section.speakers_preview .speakers_swiper div.swiper-button-next,
section.speakers_preview .speakers_swiper div.swiper-button-prev {
    position: static;
    margin: 0;
    color: #fff;
    background-color: #bebebe;
    border-radius: 50%;
    width: 30px;
    height: 30px;

}

section.speakers_preview .speakers_swiper div.swiper-button-next:hover,
section.speakers_preview .speakers_swiper div.swiper-button-prev:hover {
    background-color: #747474;
    transition: 0.2s;
}


section.speakers_preview .speakers_swiper div.swiper-button-next::after,
section.speakers_preview .speakers_swiper div.swiper-button-prev::after {
    font-size: 15px;
}


/*####### overview_btn #########*/
section.overview_btn {
    background-image: url(../images/overview_btn_bg.png);
    background-position: center;
    background-size: cover;
    padding-bottom: 200px;
}

/* .overview_btn .bg_wrap {
    position: absolute;
    top: 0;


    width: 100%;
    max-width: 1560px;
    z-index: 1;
} */

.overview_btn .center_inner {
    background-color: transparent;
    position: relative;
    z-index: 2;
}

.overview_btn .overview_btn_list {
    display: flex;
    justify-content: center;
}

.overview_btn .overview_btn_list li {
    width: 30%;
    position: relative;
    border-radius: 20px;
    padding: 20px 30px;
    height: 250px;
}

.overview_btn .overview_btn_list li:not(:last-child) {
    margin-right: 30px;
}

.overview_btn .overview_btn_list li>span {
    display: block;
    color: #fff;
    font-size: 20px;
    font-weight: 600;
}

.overview_btn .overview_btn_list li>a {
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid #fff;
    border-radius: 20px;
    width: fit-content;
    padding: 5px 14px;
    font-size: 14px;
    position: absolute;
    bottom: 30px;
    left: 30px;
}

.overview_btn .overview_btn_list li>a>img {
    width: 18px;
}

.overview_btn .overview_btn_list li>img {
    position: absolute;
    width: 15%;
    right: 30px;
    bottom: 20px;
}

.overview_btn .overview_btn_list li:nth-child(1) {
    background-color: #f68e44;
}

.overview_btn .overview_btn_list li:nth-child(2) {
    background-color: #52b36e;
}

.overview_btn .overview_btn_list li:nth-child(3) {
    background-color: #5278b3;
}

/*######### organizer #########*/
.organizer .img_wrap img {
    width: 250px;
}


/*############# about_main_img ############*/
section.about_main_img .center_inner {
    background-color: #fff;
    padding: 0;
}

section.about_main_img {
    padding: 0;
}

.about_main_img img {
    width: 100%;
    max-width: 1560px;
}


/*############### message ############*/
section.message .center_inner {
    background-color: #fff;
}

.message p>.bold_text {
    font-weight: 600;
}



/*############### overview ############*/
.overview table {
    width: 100%;
    border-collapse: collapse;
    border-spacing: 0px;
    border-top: 1px solid #dfdfdf;
    border-bottom: 1px solid #dfdfdf;
}

.overview table tbody tr {

    border-bottom:  solid 1px #dfdfdf;
}

.overview table tbody tr:nth-child(even) {
    background-color: rgba(0, 0, 0, 0.03);
  
}

.overview table tbody tr th {
    color: #016b79;
    font-weight: 700;
    padding: 25px 30px
}

.overview table tbody tr td {
    color: #000;
    padding: 25px 30px
}


/*########## program ############*/
.program .info_top {
    font-size: 14px;
    padding: 10px;
    background-color: #f1f1f1;
    margin-bottom: 40px;
}

.program .info_bottom {
    font-size: 14px;
}

.program .program_list .item {
    margin-bottom: 40px;
}

.program .program_list .item>div {
    width: 100%;
    font-weight: 500;
}

.program .program_list .item .title {
    background-color: rgba(1, 107, 121, 1);
    color: #fff;
    display: flex;
    justify-content: space-between;
    padding: 10px 20px;
}

.program .program_list .item .content {
    color: rgba(1, 107, 121, 1);
    background-color: #f1f1f1;
    border-bottom: 1px solid #dfdfdf;
    padding: 20px;
    line-height: 1.7;
}

.program .program_list .item .presenter li {
    width: 100%;
    background-color: #fff;
    display: flex;
    justify-content: flex-start;
    gap: 20px;
    border-bottom: 1px solid #dfdfdf;
    padding: 10px 20px;
}

.program .program_list .item .presenter li .role {
    color: rgba(1, 107, 121, 1);
    font-weight: 600;
    width:80px;
    text-align: center;
}

.program .program_list .item .presenter li .name {
    color: #000;
    font-weight: 600;
}

.program .program_list .item .presenter li .position {
    color: #000;
    font-weight: 300;
}



/*########## speakers ############*/
.speakers h3 {
    background-color: rgba(1, 107, 121, 1);
    color: #fff;
    padding: 10px 20px;
    width: 100%;
    font-weight: 500;
}

.speakers .speakers_list {
    display: flex;
    flex-wrap: wrap;
    gap: 2.5%;
}

.speakers .speakers_list h4 {
    background-color: #f1f1f1;
    padding: 10px 20px;
    width: 100%;
    font-weight: 500;
}

.speakers .speakers_item {
    width: 23%;
    margin: 20px 0px;
}

.speakers .speakers_item .profile {
    position: relative;
    z-index: 1;
}

.speakers .speakers_item[data-index="0"] .profile .img,
.speakers .speakers_item[data-index="1"] .profile .img,
.speakers .speakers_item[data-index="2"] .profile .img,
.speakers .speakers_item[data-index="3"] .profile .img {
    background-image: url(../images/speakers_sample.jpg);
    background-position: center;
    background-size: cover;
}

.speakers .speakers_item .profile .img {
    width: 100%;
    height: 280px;
}

.speakers .speakers_item .profile .info span {
    display: block;
}

.speakers .speakers_item .profile .info .name {
    color: #000;
    font-size: 20px;
    font-weight: 600;
}

.speakers .speakers_item .profile .info .eng_name {
    color: #bfbfbf;
    font-size: 20px;
    font-weight: 500;
}

.speakers .speakers_item .profile .info .position {
    color: rgba(1, 107, 121, 1);
    font-size: 18px;
    font-weight: 500;
}

.speakers .speakers_item .profile .hover_img {
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    text-align: center;
    background-color: rgba(0, 172, 234, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: 0.2s;
}

.speakers .speakers_item .profile .hover_img img {
    width: 90px;
}

.speakers .speakers_item .profile .hover_img span {
    color: #fff;
    margin-top: 10px;
    display: block;
}

.speakers .speakers_item .profile .hover_img span.name {
    font-size: 20px;
    font-weight: 600;
}

.speakers .speakers_item .profile .hover_img span.more_text {
    text-decoration: underline;
    font-size: 18px;
    font-weight: 600;
}

.speakers .speakers_item .profile:hover>.hover_img {
    opacity: 1;
    z-index: 2;
    -webkit-transition: all .2s ease-out;
    -moz-transition: all .2s ease-out;
    -o-transition: all .2s ease-out;
    transition: all .2s ease-out;
    cursor: pointer;
}

.speakers .speakers_item .modal_item {
    display: none;
}

.speakers .speakers_item .modal_item .modal_background {
    display: none;
    z-index: 100;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.8);
}

.speakers .speakers_item .modal_item .modal_contents {
    width: 80%;
    height: 60%;
    max-width: 1200px;
    max-height: 900px;
    background-color: #fff;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 101;
    border-radius: 20px;
    padding: 60px 40px;
    display: flex;
    justify-content: space-between;
    overflow: scroll;
}

.speakers .speakers_item .modal_item .modal_contents .modal_close_btn {
    position: absolute;
    top: 20px;
    right: 40px;

}

.speakers .speakers_item .modal_item .modal_contents .modal_close_btn img {
    width: 34px;
}

.speakers .speakers_item .modal_item .modal_contents .profile {
    width: 25%;
}

.speakers .speakers_item .modal_item .modal_contents .profile .img {
    height: 260px;

}

.speakers .speakers_item .modal_item .modal_contents .profile .eng_name {
    padding-bottom: 10px;
}

.speakers .speakers_item .modal_item .modal_contents .profile .position {
    list-style: disc;
    color: #000;
    font-size: 15px;
    font-weight: 400;
    padding: 10px 0px 0px 16px;
    border-top: 2px solid rgba(1, 107, 121, 1);
}

.speakers .speakers_item .modal_item .modal_contents .detail {
    width: 70%;

}

.speakers .speakers_item .modal_item .modal_contents .detail .title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 14px;
}

.speakers .speakers_item .modal_item .modal_contents .detail .role {
    font-size: 20px;
    font-weight: 600;
    padding-bottom: 14px;
    border-bottom: 2px solid rgba(1, 107, 121, 1);
    margin-bottom: 14px;
}

.speakers .speakers_item .modal_item .modal_contents .detail .bio>span {
    font-weight: 500;
    margin-bottom: 10px;
    display: block;
}

/*########## registration ############*/
.registration form>div {
    display: flex;
    gap: 3%;
}

.registration form>div:not(:last-child) {
    padding-bottom: 5%;
    margin-bottom: 5%;
    border-bottom: 1px solid #cccccc;
}

.registration span.color_text {
    font-size: 18px;
    color: rgba(1, 107, 121, 1);
    font-weight: 500;
}

.registration h2 {
    min-width: 200px;
    width: 15%;
}

.registration .content {
    padding-top: 2px;
    width: 82%;
}

.registration .content>div:not(:last-child) {
    margin-bottom: 40px;
}

.registration h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 10px;
}

.registration .content .info p {
    border: 1px solid #bfbfbf;
    background-color: #eee;
    padding: 10px 20px;
}

.registration .content .info.other_style p {
    height: 120px;
    overflow: scroll;
    background-color: #fff;
}

.registration .content .info.other_style label {
    display: flex;
    align-items: center;
    margin-top: 10px;
}

.registration .user_info input {
    border: none;
    border-bottom: 1px solid #000;
    width: 100%;
    font-size: 20px;
    padding: 8px 0px;
}

.registration .user_info select {
    padding: 8px 10px;
    border-radius: 5px;
}

.registration .user_info label[for="email"] {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.registration .user_info label[for="email"]>div {
    gap: 10px;
    display: flex;
    align-items: center;
}

.registration .user_info label[for="email"] input,
.registration .user_info label[for="email"] select {
    width: 30%;
}

.registration .user_info label[for="email"] button {
    width: 20%;
    border: 1px solid #000;
    background-color: #f1f1f1;
    margin-left: 5%;
    padding: 8px 0px;
    border-radius: 5px;
}

.registration .affiliation_group .option_list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.registration .affiliation_group .option_list label {
    display: flex;
    align-items: center;

}

.registration .user_info .affiliation_group .option_list input {
    padding: 0px;
    margin-right: 10px;
    width: fit-content;
}

.registration .participation_type .input_wrap {
    display: flex;
    gap: 1%;
}

.registration .info .mini_text {
    color: #727272;
    display: block;
    margin: 15px 0px 5px 0px;
}

.registration .participation_type label {
    width: 50%;
    text-align: center;
    border: 1px solid #000;
    padding: 6px 0px;
    position: relative;
    z-index: 1;
    background-color: #fff;
    display: block;
}

.registration .participation_type label:hover {
    cursor: pointer;
}

.registration .participation_type label input[type="radio"] {
    display: none;

}

.registration .participation_type ul {
    margin-top: 40px;
    border-top: 2px solid #000;
    border-bottom: 2px solid #000;
}

.registration .participation_type ul li {
    padding: 20px 10px;
    line-height: 2;
    font-weight: 600;
    font-size: 18px;
}

.registration .participation_type ul li:not(:last-child) {
    border-bottom: 1px solid #cccccc;
}

.registration .participation_type ul li>.mini_text {
    margin: 0;
    font-weight: 400;
    font-size: 16px;
}

.registration .submit_btn {
    display: flex;
    justify-content: center;
}

.registration .submit_btn button {
    color: #fff;
    background-color: rgba(1, 107, 121, 1);
    font-weight: 600;
    font-size: 20px;
    padding: 20px 0px;
    width: 280px;
}


/*############## login ##########*/
.login .center_inner {
    display: flex;
    justify-content: center;
}

.login .login_container {
    width: 70%;
}

.login .login_container p {
    font-size: 20px;
    margin-bottom: 20px;
}

.login .login_container .input_wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.login .login_container .input_wrap input {
    display: block;
    width: 100%;
    border: none;
    border-bottom: 1px solid #000;
    padding: 10px 5px;
    font-size: 20px;
}

.login .login_container .view_btn {
    display: flex;
    justify-content: center;
    margin-top: 40px;
}

.login .login_container .view_btn button {
    color: #fff;
    background-color: rgba(1, 107, 121, 1);
    font-weight: 600;
    font-size: 20px;
    padding: 20px 0px;
    width: 280px;
}


/*########### search_bar ############*/
.search_bar .center_inner {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    position: relative;
}

.search_bar .category_btn_wrap {
    position: absolute;
    left: 2%;
    display: flex;
    width: 40%;
}

.search_bar .category_btn_wrap a.category_btn {
    border: 1px solid #ddd;
    background: #f7f7f7;
    color: #888;
    display: flex;
    height: 100%;
    width: 33%;
    justify-content: center;
    align-items: center;
    padding: 5px 0px;
}

.search_bar .category_btn_wrap a.category_btn.active {
    border: 1px solid #333637;
    background: #fff;
    color: #565e60;
    font-weight: 600;
    transition: 0.2s;
}

.search_bar form {
    width: 50%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 2px solid #000;
    padding-bottom: 5px;
    gap: 1%;
}

.search_bar form select,
.search_bar form input {
    border: none;
    padding: 10px;
    font-size: 18px;
    box-sizing: border-box;
}

.search_bar form select {
    width: 15%;
    min-width: 75px;

}

.search_bar form input[type="text"] {
    width: 70%;
}

.search_bar form input[type="submit"] {
    width: 15%;
    background-color: #000;
    color: #fff;
    min-width: 75px;
}

/*########## board ###########*/
section.notice_board {
    padding: 0;
}

.notice_board .board_container .title {
    width: 85%;
    white-space: nowrap;
    /* 줄바꿈 없이 한 줄만 표시 */
    overflow: hidden;
    /* 넘치는 내용 숨김 */
    text-overflow: ellipsis;
    font-weight: 500;
}

.notice_board .board_container .date {
    width: 10%;
    min-width: 105px;
    color: #383838;
    font-weight: 400;
}

.notice_board .board_container .post_header {
    width: 100%;
    background-color: #f8f8f8;
    border-bottom: 1px solid #000;
    display: flex;
    justify-content: space-between;
    padding: 20px 14px;
}

.notice_board .board_container .post_header>div {
    text-align: center;
}



.notice_board .board_container ul.post_list .date {
    text-align: center;
}

.notice_board .board_container ul.post_list {
    width: 100%;
}

.notice_board .board_container ul.post_list li {
    width: 100%;
    border-bottom: 1px solid #bfbfbf;
}

.notice_board .board_container ul.post_list li a {
    display: flex;
    justify-content: space-between;
    padding: 20px 14px;
}


/*########## event_board ##########*/
section.event_board {
    padding: 0;
}

.event_board .post_list {
    display: flex;
    flex-wrap: wrap;
    gap: 1.3%;
}

.event_board .post_list .post_item {
    width: 24%;
    margin-bottom: 20px;
}

.event_board .post_list .post_item>a .img {
 
    background-position: center;
    background-size: cover;
    height: 490px;
}

.event_board .post_list .post_item>a .title {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    text-overflow: ellipsis;
    word-break: break-word;
    font-weight: 600;
    font-size: 20px;
    padding: 5px;
}

.event_board .post_list .post_item>a .title span {
    color: #999;
    padding-right: 5px;
    margin-right: 5px;
}



/*########## board_pagination ##########*/
.board_pagination .page_btn_wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.board_pagination .page_btn {
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #e4eaec;
    font-size: 15px;
}

.board_pagination .page_btn.active {
    background-color: #333333;
    color: #fff;
    transition: 0.2s;
}

/*########## board_pagination.view_page ##########*/

.board_pagination.view_page .page_btn_wrap {
    justify-content: flex-start;
}

.board_pagination.view_page .page_btn {
    width: 60px;
}

.board_pagination.view_page .list_btn_wrap {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.board_pagination.view_page .list_btn {
    background-color: #08247D;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 140px;
    height: 50px;
}

/*############# view_page ###########*/
.view_page h2 {
    text-align: center;
    border-bottom: 1px solid #ddd;
    padding-bottom: 2%;
    line-height: 2;
}

.view_page h2 span {
    font-size: 18px;
    color: #777777;
    font-weight: 500;
}

.view_page .link_wrap {
    padding: 10px 0px;
    background-color: #f7f7f7;
    margin-bottom: 20px;

}

.view_page .link_wrap a {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    background-color: #f7f7f7;
    padding: 5px 10px;
    font-size: 15px;
}

.view_page .link_wrap a img {
    width: 18px;
    margin-right: 6px;
}

.view_page .link_wrap a .link_name {
    font-weight: 600;
}

.view_page .content_wrap {
    border-bottom: 1px solid #ddd;
    padding-bottom: 20px;
}

.view_page .content_wrap p {
    margin-top: 40px;
    line-height: 2;
    font-weight: 300;
}

.view_page .content_wrap p .mini_title {
    color: #009e25;
    font-weight: 600;
}

/*############# replay ############*/
.replay .center_inner {
    display: flex;
    gap: 5%;
}

.replay .center_inner>div {
    width: 50%;
}

.replay iframe {
    width: 100%;
    height: 400px;
}

@media (max-width:1560px) {
    section.main_visual {
        padding-bottom: 270px;
    }

    section.overview_btn {
        padding-bottom: 120px;
    }

    .replay iframe {
        height: 300px;
    }
}

@media (max-width:1200px) {
    section.main_visual {
        padding-bottom: 260px
    }

    section.overview_btn {
        padding-bottom: 80px;
    }

    section.main_visual .text_wrap {
        width: 80%;
    }

    .overview_btn .overview_btn_list li {
        width: 30%;
    }

    .speakers .speakers_item .profile .img {
        height: 250px;
    }

    .speakers .speakers_item .modal_item .modal_contents .profile .img {
        height: 220px;

    }

    .event_board .post_list .post_item>a .img {
        height: 260px;
    }
}



@media (max-width:1000px) {
    section.main_visual {
        padding-bottom: 240px
    }

    section.overview_btn {
        padding-bottom: 60px;
    }

    .overview_btn .overview_btn_list li:not(:last-child) {
        margin-right: 15px;
    }

    .organizer .img_wrap img {
        width: 200px;
    }

    .speakers .speakers_list {
        gap: 1.2%;
    }

    .speakers .speakers_item {
        width: 24%;
    }

    .speakers .speakers_item .profile .img {
        height: 220px;
    }

    .speakers .speakers_item .modal_item .modal_contents {
        width: 90%;
    }

    .speakers .speakers_item .modal_item .modal_contents .profile {
        width: 28%;
    }

    .speakers .speakers_item .modal_item .modal_contents .detail {
        width: 68%;
    }

    .registration h3 {
        font-size: 20px;
    }

    .search_bar .center_inner {
        position: static;
        display: block;
    }

    .search_bar .category_btn_wrap {
        position: static;
        width: 100%;
        margin-bottom: 40px;
        gap: 1%;
    }

    .search_bar .category_btn_wrap a.category_btn {
        padding: 10px 0px;
    }

    .search_bar form {
        width: 100%;
    }

    .event_board .post_list {
        gap: 2%;
    }

    .event_board .post_list .post_item {
        width: 32%;
    }

    .replay iframe {
        height: 240px;
    }
}

@media (max-width:900px) {
    .speakers .speakers_list {
        gap: 2%;
    }

    .speakers .speakers_item {
        width: 32%;
    }

    .speakers .speakers_item .profile .img {
        height: 260px;
    }

    .registration form>div {
        display: block;
    }

    .registration h2 {
        width: 100%;
    }

    .registration .content {
        width: 100%;
    }
}

@media (max-width:800px) {
    .overview_btn .bg_wrap {
        height: 250px;
    }

    .overview_btn .overview_btn_list {
        justify-content: space-between;
    }

    .overview_btn .overview_btn_list li {
        width: 32%;
        height: 140px;
        padding: 15px 20px;
    }

    .overview_btn .overview_btn_list li:not(:last-child) {
        margin-right: 0px;
    }

    .overview_btn .overview_btn_list li>a {
        bottom: 15px;
        left: 20px;
    }

    .overview_btn .overview_btn_list li>img {
        bottom: 15px;
        right: 20px;
    }

    .speakers .speakers_item .modal_item .modal_contents {
        display: block;
        padding: 40px 30px;
    }

    .speakers .speakers_item .modal_item .modal_contents .modal_close_btn {
        top: 20px;
        right: 30px;

    }

    .speakers .speakers_item .modal_item .modal_contents .profile,
    .speakers .speakers_item .modal_item .modal_contents .detail {
        width: 100%;
    }

    .speakers .speakers_item .modal_item .modal_contents .profile .img {
        width: 200px;
    }

    .speakers .speakers_item .modal_item .modal_contents .profile .name,
    .speakers .speakers_item .modal_item .modal_contents .profile .eng_name {
        font-size: 16px;
    }

    .speakers .speakers_item .modal_item .modal_contents .profile .eng_name {
        padding-bottom: 5px;
    }

    .speakers .speakers_item .modal_item .modal_contents .profile .position {
        font-size: 14px;
        padding-top: 5px;
    }

    .speakers .speakers_item .modal_item .modal_contents .detail {
        margin-top: 30px;
    }

    .speakers .speakers_item .modal_item .modal_contents .detail .title,
    .speakers .speakers_item .modal_item .modal_contents .detail .role {
        font-size: 16px;
        margin-bottom: 5px;
    }

    .speakers .speakers_item .modal_item .modal_contents .detail .role {
        padding-bottom: 5px;
    }

    .speakers .speakers_item .modal_item .modal_contents .detail .bio {
        font-size: 14px;
    }

    .event_board .post_list {
        gap: 4%;
    }

    .event_board .post_list .post_item {
        width: 48%;
    }

    .event_board .post_list .post_item>a .img {
        height: 300px;
    }

    .replay .center_inner {
        display: block;
    }

    .replay .center_inner>div {
        width: 100%;
        margin-bottom: 40px;
    }

    .replay iframe {
        height: 350px;
    }
}

@media (max-width:700px) {
    section.main_visual {
        padding-bottom: 180px;
    }

    section.main_visual .text_wrap {
        width: 95%;
    }

    section.main_visual .main_visual_top_img {
        margin-bottom: 10px;
    }

    section.main_visual .main_visual_bottom_img {
        margin-top: 10px;
    }

    section.overview_btn {
        padding-bottom: 40px;
    }

    .overview_btn .overview_btn_list {
        justify-content: center;
        flex-wrap: wrap;
    }

    .overview_btn .overview_btn_list li {
        width: 80%;
        height: 33%;
        padding: 15px 20px;
        display: flex;
        justify-content: space-between;
    }

    .overview_btn .overview_btn_list li>span {
        font-size: 16px;
    }

    .overview_btn .overview_btn_list li:not(:last-child) {
        margin-bottom: 10px;
    }

    .overview_btn .overview_btn_list li>a {
        position: static;
    }

    .overview_btn .overview_btn_list li>img {
        display: none;
    }


    .speakers .speakers_list {
        gap: 4%;
    }

    .speakers .speakers_item {
        width: 48%;
    }

    .speakers .speakers_item .profile .img {
        height: 280px;
    }

}

@media (max-width:600px) {
    .overview_btn .overview_btn_list li {
        width: 90%;
    }

    .event_board .post_list .post_item>a .img {
        height: 260px;
    }

    .replay iframe {
        height: 300px;
    }
}

@media (max-width:550px) {
    section.main_visual {
        padding-bottom: 120px;
    }
}


@media (max-width:500px) {

    .main_page_overview .left_area,
    .main_page_overview .right_area {
        display: block;
    }

    .main_page_overview .left_area .content_wrap,
    .main_page_overview .right_area .content_wrap {
        width: 100%;
    }

    .speakers .speakers_item .profile .img {
        height: 220px;
    }

    .speakers .speakers_item .modal_item .modal_contents {
        padding: 50px 30px;
    }

    .speakers .speakers_item .modal_item .modal_contents .modal_close_btn {
        right: 20px;
    }

    .event_board .post_list .post_item>a .img {
        height: 200px;
    }

    .replay iframe {
        height: 220px;
    }
    .program .program_list .item .presenter li {
        display:block;
        border-bottom: 1px solid #dfdfdf;
        padding: 5px 10px;
    }
    .program .program_list .item .presenter li .role {
        text-align: left;
        width:auto;
    }
}

@media (max-width:450px) {
    .overview_btn .overview_btn_list li>a {
        padding: 3px 8px;
    }
}