.main_banner {
    background: url('../images/main_banner_3rd_2.jpg') center center;
    background-size: cover;

    /*padding: 50px 0;*/
}

.main_banner .inner {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    min-height: 400px;
}

.main_banner .main-title {
    display: flex;
    flex-wrap: wrap;
    align-content: center;
    margin: 7% 0;
    color: #fff;
    
}

.main_banner .main-title h3 {
    font-size: 2.2em;
    margin: 2% 0;
    text-shadow: 1px 1px 10px #be7e00 ;
}

.main_banner .main-title p {
    font-weight: 800;
    text-shadow: 1px 1px 10px #be7e00 ;
}

.main_banner .main-title img {
    /*border: 1px solid red;*/
    max-height: 40px;
    margin: 5% 0 0;
}

.main_banner .program_list {
    /*border: 1px solid red;*/
    min-width: 200px;
    margin-left: 40px;

    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: stretch;

}

.main_banner .program_list a {
    /*border: 1px solid blue;*/
    width: 100%;
    padding: 20px;

    display: flex;
    justify-content: flex-start;
    align-items: center;

    color: #000;
}

.main_banner .program_list a:nth-child(odd) {
    background-color: rgba(255, 255, 255, 0.6);
}

.main_banner .program_list a:nth-child(even) {
    background-color: rgba(255, 255, 255, 0.4);
}


.main_bar {
    background-color: #eea000;
    text-align: center;
    padding: 30px 0;
    color: #fff;
}


/* 콘텐츠 영역 */

.home_content {
    padding: 5% 0;

    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.article {
    /*border: 1px solid red;*/
    padding: 4% 0;
}
.art_title {
    display: flex;
    justify-content: space-between;
    margin: 0 0 20px;
}

.article h3 {
    font-size: 1.5em;
}

.art_title a {
    display: flex;
    align-items: center;

    padding: 5px 10px;
    color: #ffffff;
    background-color: #eea000;
    font-size: 12px;
    border-radius: 5px;
}

.art_title a:hover {
    color: #ffffff;
    background-color: #be7e00;
}

.article.about{
    flex: 1;
    max-width: 450px;
}

.article.speakers {
    flex: 1;
    max-width: 450px;
}

.article.video,
.article.contact {
    flex-basis: 100%;
    width: 100%;
}

.grey_box {
    background-color: #f8f7f7;
    padding: 35px 30px;
    border-radius: 5px;
    line-height: 1.8;
}

.swiper {
    width: 460px;
    height: 180px;
    background-color: #f8f7f7;
}


.main-slide {
    background-color: #f8f7f7;

}

.main-slide > div {
    padding: 20px;
    display: flex;
    align-items: center;
}

.swiper-pagination {
    /*position: absolute;*/
    /*bottom: 35px !important;*/
}

.main-slide .speakerimg {
    /*border: 1px solid red;*/
    display: block;
    padding: 0 20px 0px 0px;
    width: 100px;
}



.main-slide .speakerdes {
    /*border: 1px solid blue;*/
    display: inline-block;

}

.main-slide .speakerdes h4 {
    font-size: 19px;
}

.video_box {
    display: flex;
    /*justify-content: space-between;*/
    justify-content: center;
    padding: 5px 0;
}
.video_box > div {
    flex: 1;

}




/* 스마트폰 세로 */
@media only screen and (max-width : 768px) {

    /*메인배너*/
    .main_banner .inner{
        display: block;
        padding: 0 0 20px;
    }
    .main_banner .main-title {
        margin: 0 20px;
        padding: 50px 0;
    }

    .main_banner .program_list {
        /*border: 1px solid red;*/
        width: 100%;
        margin: 0;

        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        align-items: stretch;

    }

    .main_banner .program_list a {
        /*border: 1px solid blue;*/
        width: 100%;
        padding: 20px;

    }

    /*어바웃*/
    .home_content {
        display: block;
    }

    .home_content .article {
        max-width: 100%;
        padding: 50px 0;
    }

    /*스피커*/

    .swiper {
        width: 100%;
        height: 180px;
        background-color: #f8f7f7;
    }

}


/* iPad 세로 */
@media only screen and (min-width : 768px) and (max-device-width: 1024px) and (orientation: landscape) {

    .home_content .article {
        padding: 50px 20px;
    }

}