@media only screen and (max-width: 1024px) {
    .horizontal_title {
        font-size: 22px;
        line-height: 1.5;
    }

    .main_title_desc {
        font-size: 21px;
        line-height: 1.5;
    }

    header #hambuger_menu.hambuger_active img {
        background: url('https://www.hakdokman.com/common/asset/header/close_gray.svg');
    }

    #headline {
        padding: 0px 92px 19px 80px;
    }

    #headline .container {
        height: 385px;
        background-size: 542px;
        background-position: right bottom;
    }

    
    
#section2 {
    padding: 120px 91px;
}

    #section2 .list {
        width: 582px;
    }

    #section2 .item {
        margin: 0 90px 76px 0;
    }

    #section2 .item .icon {
        float: none;
        margin-bottom: 18px;
    }

    #section2 .item .title {
        margin-left: 0;
    }

    #section2 .item .content {
        margin-left: 0;
    }

#section3 {
    padding: 80px 36px 56px;
}


#section4 {
}


#section5 .container {
    max-width: 688px;
}

    #section5 .schedule {
        width: 688px; height: 618px;
        padding: 85px 42px;
        background-image: url('https://www.hakdokman.com/courses/asset/nano_da/schedule_tablet.svg')
    }

    #section5 .schedule .item .content {
        width: 480px;
    }

    
#section6 {
    
}
    #section6 img{
        width: 40%;
        margin: 10px;
        max-width: 280px;
    }
    #section6 .list{
        max-width: 660px;
    }
    
    #section6 #yt_player {
        margin: 0 auto;
        display: block;
        width: 100%; 
        height: 440px;
    }
    #section6 #yt_player:first-child{
        margin-right: 0px;
        margin-bottom: 50px;
    }

    
#section7 {
    padding: 120px 0 0 0 ;
}
    
    #section7 .class_desc {
        margin: 30px auto 44px;
    }

    #section7 .page_indicator {
        margin: 32px auto;
    }

    
#section8 {

}
    #section8 .container{
        max-width: 780px; 
    }
    #section8 .teachers{
        width: 45%;
        max-width: 300px;
        height: auto;
        margin: 10px;
    }
    #section8 .teacher_img img{
        width: 300px;
    }   
    #section8 .teacher_introduce{
        height: 104px;
    }
    #section8 .show_interview{
        padding: 8px 0 10px 0;
    }
    #section8 .teachers a{
        margin-bottom: 20px;
    }
    
    
#section9{

}

    #section9 .process_info p{
        font-size: 23px;
    }
    #section9 .process_info img.hotdog{
        width:80%;
    }
    #section9 .process_info img.process{
        width:90%;
    }


#section10 {
    padding: 30px 0;
}

    #section10 .column_list {
        width: 450px;
        margin-top: 110px;
        text-align: left;
    }

    #section10 .column.right {
        margin-left: 0;
    }

    #section10 .column.left .item:last-of-type {
        padding-bottom: 32px;
    }


    
    
#section11{

}
    #section11 .portfolio{
        padding: 0 80px;
    }
    #section11 .portfolio p{
        font-size: 23px;
        margin-bottom: 0;
    }
    #section11 .student_portfolio{
        width: 100%;
        max-width: 780px;
    }
    #section11 .student_portfolio .student_portfolio_card{
        width: 47%;
        margin: 0 8px 30px 8px;
    }
    #section11 .student_portfolio a{
        padding: 12px;
    }

    
    
#section12 {
    padding: 83.5px 64px 86px;
    background: url('https://www.hakdokman.com/courses/asset/nano_da/webbg_tablet.svg'), black;
    background-repeat: no-repeat;
    background-position: top right;
    background-size: 260px;
}
    
    

#section15 {
    padding: 164px 0;
}

    #section15 .dashed_box {
        width: 656px;
    }

    #section15 .isa_example_container {
        background-image: url('https://www.hakdokman.com/courses/asset/nano_da/isa_tablet.svg');
        background-size: 730px;
        height: 340px;
        width: 100%;
    }

#section16 {
    padding-bottom: 0px;
    background-image: url('https://www.hakdokman.com/courses/asset/nano_da/mobile_bg_isa.png');
    background-position: center 120px;
    background-size: 100% 655px;
}

    #section16 .container {
        width: 100%;
    }

    #section16 .isa_loan {
        width: 685px;
        margin: 134px auto 0;
    }

    #section16 .content_box {
        padding: 38px 42px;
    }

    #section16 .content_box .title {
        margin-bottom: 10px;
    }

    #section16 .content_box_1 {
        width: 436px;
    }

    #section16 .content_box_2 {
        width: 421px;
        margin-top: -28px;
    }

    #section16 .isa_condition {
        display: inline-block;
        margin: 170px auto 0;
    }

    #section17 {
        padding: 144px 0 58px;
    }

    #section17 .main_title_desc {
        margin: 70px 0 ;
        font-size: 18px;
    }

    #section18 {
        padding: 78px 73px 122px;
        background: url('https://www.hakdokman.com/courses/asset/nano_da/deco_tablet.svg'), #efefef;
        background-repeat: no-repeat;
        background-position: right bottom;
        background-size: 40%;
    }

#section20 {
    padding: 108px 42px;
}

    #section20 .content_box {
        padding: 65px 50px;
    }

    #section20 .go_with {
        font-size: 18px;
        line-height: 1.75;
    }

    #section22 { 
        padding: 86px 66px;
    }

    .footer_float {
        font-size: 18px;
        height: 65.1px;
    }
    .footer_float .tablet_hide{
        display: none;
    }
}


@media only screen and (min-width: 769px) and (max-width: 1024px) {
    .tablet_br {
        display: inline;
    }
        .footer_float {
        line-height: 62px;
    }
    .footer_float .btn_apply {
        padding: 18px 0 22.7px;
    }
}

@media only screen and (max-width: 768px) {
    .wide_mobile_br {
        display: inline;
    }

    .main_title {
        padding: 14px 25px;
        min-width: 240px;
        font-size: 25px;
        line-height: 1.5;
    }

    .lined_title {
        padding-left: 20px;
    }

    .dashed_line {
        margin: 60px auto 56px;
    }

    #headline {
        padding: 0 24px;
        background-position: center;
    }

    #headline .title h1 {
        font-size: 50px;
        font-weight: bold;
        line-height: 1.3;
    }

    #headline .title p {
        margin-bottom: 32px;
        font-size: 22px;
        font-weight: normal;
        line-height: 1.59;
    }

#section1 {
    padding: 38px 23px;
}

    #section1 .container {
        font-size: 20px;
        font-weight: 500;
        line-height: 1.35;
    }

#section2 {
    padding: 16%;
    /*padding : 100px 67px;*/
}

    #section2 .list {
        display: block;
        max-width: 246px;
        width:100%; 
        /*width : 246px;*/
    }

    #section2 .item {
        /*width : 246px;*/
        display: block;
        margin: 0 0 64px 0;
    }

#section3 img{
    width: 100%;
}
    
#section4 .degree{
    background-size: contain;
    resize: both;
    background-repeat: no-repeat;
    background-position: top;
    margin: 0 auto;
    height: 560px;
    max-width: 550px;
}
    #section4 .degree h4{
        padding-top: 380px;
        margin: 0 auto;
        font-size: 25px;
        max-width: 330px;
    }
    #section4 .degree_info{
        text-align: center;
        font-size: 18px;
        margin: 0 auto;
        padding: 20px 0 0 0 ;
    }


#section5 {
    padding: 55px 12px;
}
    #section5 .schedule {
        width: 100%; height: auto;
        max-width: 345px;
        padding: 168px 20px;
        background-image: url('../asset/nano_da/schedule_mobile.svg');
        background-size: 100% 100%;
        background-position: center;
    }

    #section5 .schedule .item .title {
        line-height: 1.71;
    }

    #section5 .schedule .item .content {
        width: 100%;
        padding-left: 0;
        border-left: none;
        line-height: 1.71;
        word-break: keep-all;
    }

    
#section6{
    padding: 0;
}
    #section6 p.four_p{
        padding: 0 40px;
        margin: 20px 20px 50px 20px;
        font-size: 21px;
    }
    #section6 img{
        width: 42%;
        margin: 10px;
    }
    #section6 .list{
        height: auto;
        margin: 0 auto;
    }
    #section6 #yt_player {
        width:100%;
        display: block;
        min-width: 360px;
    }
    #section6 #yt_player:first-child{
        margin-right: 0;
    }

    
    
#section7 .container {
    width: 100%;
    }

    #section7 .container .horizontal_title {
        font-size: 24px;
    }
    
    
#section8 {
    padding: 100px 10px 120px;
}

    #section8 .container{
        width: 100%;
    }
    #section8 .teachers{
        width: 44%;
        max-width: 240px;
        height: auto;
        margin: 10px 10px 20px;
    }
    #section8 .teacher_img img{
        width: 100%;
        max-width: 240px;
    }   
    #section8 .teacher_introduce{
        font-size: 15px;
        height: 100px;
    }

    
#section9 .process_info p{
    font-size: 23px;
    margin: 100px 60px 50px 60px;
}
    #section9 .process_info img.hotdog{
        width:90%;
    }
    #section9 .process_info img.process{
        width:94%;
    }
    #section9 .process_info .curi_detail img{
        width: 50%;
    }
    

#section10{ 
    padding: 120px 0 0 0 ;
}
#section10 .column_list {
    width: 316.5px;
    margin-top: 74px;
}

    #section10 .item.opened .content {
        width: 100%;
    }
    
    
    
#section11{
    padding: 120px 0 0 0 ;
}
    #section11 .container{
        padding: 0;
        margin: 0;
        width:100%;
    }
    #section11 .portfolio{
        padding: 0;
    }
    #section11 .portfolio p{
        font-size: 23px;
        margin: 80px 80px 0;
    }
    #section11 .portfolio img{
        width: 94%;
        margin: 30px auto 0;
    }
    #section11 .student_portfolio{
        margin: -50px 0 120px;
    }
    #section11 .student_portfolio .student_portfolio_card{
        display: inline-block;
        width: 80%;
        max-width: 380px;
        margin: 30px 0;
    }
    #section11 .student_portfolio a{
        padding: 13px;
    }
    
#section12 {
    padding: 62px 24px 274px;
    background-image: url('https://www.hakdokman.com/courses/asset/nano_da/webbg_mobile.svg');
    background-position: calc(50%) bottom;
    background-size: 378px;
}

    #section12 .container {
        max-width: 400px; 
    }

    #section12 .desc {
        margin-top: 36px;
        padding-left: 20px;
        font-size: 17px;
    }
    #section12 .desc .emphasize_large{
        font-size: 17px;
    }
    


#section15 {
    padding: 144px 0;
}

    #section15 .dashed_box {
        width: calc(100% - 44px);
        max-width: 400px; /* 모바일 레이아웃 호환을 위한 조치*/
        margin: 42px auto 78px;
        padding: 31px;
    }

    #section15 .isa_example_condition {
        width: 76%; max-width: 340px;
        margin: 29px auto 32px;
        text-align: left;
    }

    #section15 .isa_example_condition .column.left {
        width: 30%; height: 100%; 
        left: 0;
        padding: 35px 30px;
        text-align: center;
    }

    #section15 .isa_example_condition .column.right {
        width: 70%; height: 100%;
        padding: 12px 22px 12px 17px;
    }
    
    #section15 .isa_example_condition ul li {
        display: block;
        text-align: left;
    }

    #section15 .isa_example_condition ul li::after {
        content: '';
        display: none;
    }

    #section15 .isa_example_container {
        min-height: 740px;
        background-image: url('https://www.hakdokman.com/courses/asset/nano_da/isa_mobile.svg');
        background-size: 86%;
        max-width: 340px;
        margin: 0 auto;
        border: solid 1.4px #000000;
    }

    #section15 .isa_detail_btn {
        margin: 42px auto 82px;
    }

    #section15 .isa_detail_desc {
        font-size: 18px;
        line-height: 1.6;
    }

#section16 {
    background-size: 100% 530px;
}

    #section16 .isa_loan {
        width: 310px;
        margin: 84px auto 0;
    }

    #section16 .content_box_1, #section16 .content_box_2 {
        width: 100%;
        margin: auto;
        padding: 28px 22px;
    }
    
    #section16 .content_box .content {
        font-size: 17px; 
        
    }

    #section16 .content_box .title {
        font-size: 20px;
        margin-bottom: 18px;
    }

    #section16 .content_box_2 {
        float: none;
        margin-top: 30px;
    }

    #section16 .isa_condition {
        text-align: center;
        margin: 88px auto 0;
    }

    #section16 .isa_condition .column {
        display: block;
    }

    #section16 .isa_condition .column.right {
        margin-top: 26px;
        margin-left: 0;
    }
    #section16 .isa_condition .column .content {
        font-size: 18px;
        line-height: 1.5em;
    }
    
#section17 {
    padding: 144px 0 42px;
}

#section18 {
    padding: 48px 20px 260px;
    background-image: url('https://www.hakdokman.com/courses/asset/nano_da/deco_tablet.svg'), #efefef;
    background-position: right bottom;
    background-size: 64%;
}

    #section18 .container {
        width:86%;
        max-width: 400px; /* 모바일 레이아웃 호환을 위한 조치*/
    }

    #section18 .content {
        font-size: 17px;
    }


#section20 {
    padding: 98px 20px 84px;
}

    #section20 .container {
        max-width: 400px; /* 모바일 레이아웃 호환을 위한 조치*/
    }

    #section20 .content_box {
        margin: 8px auto 38px;
        padding: 58px 28px 58px 31px;
        border-radius: 20px;
        font-size: 18px;
        line-height: 1.5em;
    }

    #section20 .content_box .apply_btn_row,
    #section20 .content_box ul li {
        margin-bottom: 46px;
    }
    #section20 .content_box ul li .content {
        font-size: 16.2px;
        margin-top: 14px;
        line-height: 1.5em;
    }

    #section20 .content_box .apply_btn_row .btn_apply {
        font-size: 16px;
    }
    #section20 .content_box .apply_btn_row {
        width: 246px;
        background-position: left top;
    }

    #section20 .content_box .apply_btn_row .arrow {
        display: block;
        width: 18px;
        margin: 10px auto;
        line-height: 1em;
    }

    #section20 .content_box .apply_btn_row .arrow::after {
        content: '↓';
        display: block;
    }

    #section20 .content_box .apply_btn_row .btn_apply {
        display: block;
        margin: 10px auto;
        line-height: 1.3em;
    }

    #section20 .go_with {
        margin-top: 36px;
    }

#section21 {
    padding: 68px 0;
}
    #section21 .container{
        font-size: 18px;
    }

#section22 {
    padding: 74px 12px;
}

    #section22 .container {
        max-width: 400px; /* 모바일 레이아웃 호환을 위한 조치*/
    }

    #section22 .faq_content {
        margin-top: 32px;
    }

    #section22 .faq_content .faq_item {
        margin: 10px 0;
    }
    #section22 .faq_content .faq_item .title h4 {
        font-size: 15px;
    }
    #section22 .faq_content .faq_item .content {
        font-size: 15px;
    }

    
    .footer_float .footer_content {
        display: none;
    }

    .footer_float a, .footer_float .btn_apply {
        width: 100%;
    }

    .footer_float .btn_apply {
        padding: 17.3px 0 22.7px;
        opacity: 0.9;
        font-size: 19px;
        font-weight: bold;
    }
}


@media only screen and (min-width: 540px) and (max-width: 768px) {
    #section1 .container {
        letter-spacing: -0.06em;
    }

#headline {
    height: 560px;
}
    
#section1 {

}
    
#section7 #yt_player {
    width:100%;
    max-width: 540px;
    display: block;
}

#section7 .container_2 {
    width: 100%;
    max-width: 540px;
}
    
    
#section9 .container_1 {
    max-width: 500px;
}

    #section9 .container_1 .list {
        margin-top: 46px;
    }

    #section9 .container_1 .item {
        width: 100%;
        max-width: 530px;
        margin: 0 auto;
        height: auto;
        margin-bottom: 20px;
    }
    
    #section9 .container_1 .item::after {
        content: '';
        display: block;
        clear: both;
    }

    #section9 .container_1 .item .column.left {
        width: 30%;
        padding: 28px 22px;
    }

    #section9 .container_1 .item .column.right {
        width: 70%;
        padding: 20px 24px 20px 0;
    }

    #section9 .container_1 .item .content {
        font-size: 16px;
        font-weight: 300;
        line-height: 1.63;
    }


#section18 {
    padding: 48px 20px 300px;
    background-image: url('https://www.hakdokman.com/courses/asset/nano_da/deco_tablet.svg'), #efefef;
    background-position: right bottom;
    background-size: 50%;
}


    #section18 .container {
        max-width: 540px;
    }
}


@media only screen and (max-width:540px) {
    .narrow_mobile_br{
        display: inline;
    }
    
#headline {
    height: 600px;
}
    #headline .title h1 {
        font-size: 40px;
    }
    
    #headline .title p {
        font-size: 18px;
        font-weight: 300;
    }
#section1 .container {
    font-size: 19px;
    font-weight: 300;
    line-height: 1.5em;
}
    
#section3{
    padding: 80px 0 56px;
}    

    #section3 .main_title_desc{
        padding: 30px;
    }
    #section3 .container p .wide_mobile_br{
        display: none;
    }
    
#section4 .degree{
    height: 490px;
    max-width: 380px;
    min-width: 300px;
}
    #section4 .degree h4{
        padding-top: 320px;
    }
    
#section6 p.four_p{
    font-size: 20px;
}
#section6 p.four_p br.wide_mobile_br{
    display: none;
}
    #section6 img{
        display: block;
        margin: 20px auto;
        width: 72%;
        max-width: 300px;
    }

    
    
#section8 {
    padding: 100px 0px 120px;
}

    #section8 .teachers{
        width: 88%;
        max-width: 300px;
    }
    #section8 .teacher_img img{
        width: 100%;
        max-width: 300px;
    }   
    #section8 .teacher_introduce{
        font-size: 17px;
        height: 110px;
    }


#section9 .process_info .curi_detail img{
    width: 80%;
}
    
    
#section11 .portfolio p{
    font-size: 20px;
    margin: 80px 30px 0;
}
    #section11 .portfolio img{
        width: 94%;
        margin: 30px auto 0;
    }
    #section11 .student_portfolio .student_portfolio_card{
        width: 100%;
    }
    #section11 .student_portfolio .student_portfolio_card a{
        width: 80%;
        margin: 20px auto;
    }
    
}