.header {
    background-image: url("../img/NLU/S01/NLU01_BG.3197eb92e96e.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    padding-top: 0;
    padding-bottom: 0;
    background-position: bottom;
}

.section-head h2, .section-head p {
    margin-bottom: 0.5rem;
}

.section-head {
    display: flex;
    flex-flow: wrap;
}

.display-4 {
    padding-right: 8px;
}

@media (min-width: 768px) {
    .section-head h2, .section-head p {
        margin-bottom: 1rem;
    }
}

/*S02_section2*/
.BOXS {
    height: 1200px;

}

.mainbox, .childbox {
    position: relative;
    height: 500px;
}

.mainbox {
    margin-bottom: 150px;
}

.childbox {
    margin-top: -250px;
}

.mainbox img {
    position: absolute;
    width: 100%;
    height: auto;
    left: 0%;
}

@media (min-width: 768px) {
    .BOXS {
        height: 1700px;
    }

    .mainbox, .childbox {
        margin-top: 0;
        height: 400px;
    }

    .mainbox {
        margin-bottom: 100px;
    }


    .mainbox img {
        width: 400px;
        height: 400px;
        left: 50%;
        margin-left: -200px;
    }
}

#sec2_I01_02 {
    position: absolute;
    background-image: url("../img/NLU/S02/NLU02_I01_02.bbfc1779e417.png");
    background-size: contain;
    background-repeat: no-repeat;
    width: 35%;
    height: 45%;
    left: 0%;
    top: 0;
}

#sec2_I01_ele {
    position: absolute;
    background-image: url("../img/NLU/S02/NLU02_I01_ele.9401102e1b3f.png");
    background-size: contain;
    background-repeat: no-repeat;
    width: 120%;
    height: 100%;
    left: -10%;
    top: -2%;

}

@media (min-width: 768px) {
    #sec2_I01_02 {
        width: 27%;
        height: 45%;
        left: 18%;
        top: -5%;
    }

    #sec2_I01_ele {
        height: 82%;
        left: 14%;
        top: -2%;

    }
}

.textbox {
    position: absolute;
    color: #FFFFFF;
    width: 85%;
    height: 18%;
    left: 15%;
    top: 20%;

}

.textbox .display-4 {
    margin-bottom: 0;
    font-size: 1.4rem;
}

@media (min-width: 768px) {
    .textbox {
        position: absolute;
        color: #FFFFFF;
        width: 350px;
        height: 130px;
        left: 25%;
        top: 39%;

    }

    .textbox .display-4 {
        margin-bottom: 0;
        font-size: 2.2rem;
    }
}


.childbox img {
    position: absolute;
    width: 65%;
    height: auto;
    left: 0;
    top: 0;
}

.childbox-text {
    position: absolute;
    background-color: #FFFFFF;
    width: 85%;
    height: 100px;
    right: 0;
    top: 25%;
    padding: 10px;
}

.childbox-text h3 {
    padding-bottom: 0.3rem;
    font-size: 1.5rem;
}

.childbox-text p {
    padding-bottom: 10px;
    font-size: 0.75rem;
}

@media (min-width: 768px) {
    .childbox img {
        position: absolute;
        width: 45%;
        height: auto;
        left: 10%;
        top: 0;
    }

    .childbox-text {
        position: absolute;
        background-color: #FFFFFF;
        width: 73%;
        height: 150px;
        right: 0;
        top: 40%;
        padding: 10px;
    }

    .childbox-text h3 {
        padding-bottom: 0.3rem;
        font-size: 2rem;
    }

    .childbox-text p {
        padding-bottom: 10px;
        font-size: 1.2rem;
    }
}

@media (min-width: 992px) {
    .BOXS {
        position: relative;
        width: 750px;
        height: 750px;
        background-image: url("../img/NLU/S02/NLU02_Alll.8c5142e8f2f4.png");
        background-size: contain;
        background-repeat: no-repeat;
        margin-bottom: -400px;
    }

    .mainbox {
        position: absolute;
        width: 30%;
        height: 30%;
        left: 30%;
        top: 2%;
    }

    .mainbox img {
        width: 100%;
        height: 100%;
        left: 0;
        top: 0;
        margin-left: 0;
    }

    #sec2_I01_02 {
        width: 42%;
        height: 42%;
        left: 5%;
        top: -8%;
    }

    #sec2_I01_ele {
        width: 110%;
        height: 110%;
        left: -6%;
        top: -4.5%;

    }

    .textbox {
        width: 82%;
        height: 34%;
        left: 15%;
        top: 37%;
    }

    .textbox .display-4 {
        margin-bottom: 0;
        font-size: 1.15rem;
    }

    .childbox {
        position: absolute;
        width: 31%;
        height: 22%;
    }

    .childbox img {
        width: auto;
        height: 80%;
        left: 0;
        top: 0;
    }

    .childbox-text {
        width: 80%;
        height: 46%;
        right: 0;
        top: 50%;
        padding: 5%;
    }

    .childbox-text h3 {
        padding-bottom: 0.1rem;
        font-size: 1.17rem;
    }

    .childbox-text p {
        font-size: 0.7rem;
    }

    #childbox1 {
        left: -0.5%;
        top: 11%;
    }

    #childbox2 {
        top: 33%;
        left: 26.5%;
    }

    #childbox3 {
        right: 2%;
        top: 11%;
    }
}

@media (min-width: 1200px) {
    .BOXS {
        width: 1000px;
        height: 1000px;
    }

    .textbox {
        width: 85%;
        height: 35%;
        left: 15%;
        top: 35%;
    }

    .textbox .display-4 {
        margin-bottom: 0;
        font-size: 1.55rem;
    }

    .childbox-text h3 {
        padding-bottom: 5px;
        font-size: 1.7rem;
    }
}

/*S03 관련 _ section03*/
.list-group {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-direction: column;
    flex-direction: column;
    padding-left: 0;
    margin-bottom: 0
}

.list-group-item {
    position: relative;
    display: block;
    padding: .75rem 1.25rem;
    background-color: #fff;
    border: none;
}

.timeline .timeline-panel {
    padding-left: 10px;
}

.timeline-inverted .timeline-panel {
    padding-right: 10px;
}

.timeline-panel {
    position: relative;
    height: 410px;
    margin-bottom: 15px;
}

.timeline-image, .timeline-content {
    -ms-flex: 0 0 75%;
    flex: 0 0 75%;
    max-width: 75%;
}

.timeline-content {
    z-index: 1;
    position: absolute;
    padding-top: 40%;
    font-size: 0.8rem;
}

.timeline-content .timeline-heading, .timeline-content .timeline-body {
    background-color: white;
}

.timeline-content .timeline-heading h3 {
    font-size: 1.5rem;
}

.timeline-image img {
    width: 100%;
}

.timeline .timeline-panel .timeline-image {
    position: absolute;
    right: 0;
    padding-left: 20px;
}

.timeline-inverted .timeline-panel .timeline-image {
    position: absolute;
    left: 0;
    padding-right: 20px;
}

.timeline-inverted .timeline-panel .timeline-content {
    position: absolute;
    right: 0%;
}

@media (min-width: 768px) {
    .timeline-content .timeline-heading h3 {
        font-size: 1.76rem;
    }

    .timeline-image img {
        width: 80%;
    }

    .timeline-content {
        font-size: 1rem;
    }

    .timeline-image, .timeline-content {
        -ms-flex: 0 0 50%;
        flex: 0 0 50%;
        max-width: 50%;
    }

    .timeline .timeline-panel .timeline-content {
        position: absolute;
        right: 50%;
        padding: 50px 5px 0px 50px;
    }

    .timeline-inverted .timeline-panel .timeline-image {
        left: 12%;
    }

    .timeline-inverted .timeline-panel .timeline-image img {
        margin-left: 12.5%;
    }

    .timeline-inverted .timeline-panel .timeline-content {
        position: absolute;
        right: -10%;
        padding: 50px 50px 0px 10px;
    }
}

#I01_01 {
    position: absolute;
    background-image: url("../img/NLU/S03/NLU03_I01_01.33a639f7ea2f.png");
    background-repeat: no-repeat;
    background-size: contain;
    width: 70%;
    height: 70%;
    top: 21%;
    left: 23%;
}

#I01_02 {
    position: absolute;
    background-image: url("../img/NLU/S03/NLU03_I01_02.e164fe754ff9.png");
    background-repeat: no-repeat;
    background-size: contain;
    width: 45%;
    height: 45%;
    top: 10%;
    left: 15%;
}

#I01_ele {
    position: absolute;
    background-image: url("../img/NLU/S03/NLU03_I01_ele.f34c9e4f6894.png");
    background-repeat: no-repeat;
    background-size: contain;
    width: 110%;
    height: 110%;
    top: -5%;
    left: -1%;
}

@media (min-width: 768px) {
    #I01_01 {
        width: 70%;
        height: 70%;
        top: 20%;
        left: 14%;
    }

    #I01_02 {
        width: 50%;
        height: 50%;
        top: 1%;
        left: 6%;
    }

    #I01_ele {
        width: 112%;
        height: 112%;
        top: -9%;
        left: -7%;
    }
}

#I02 {
    position: absolute;
    background-image: url("../img/NLU/S03/NLU03_I02.70c2a9ed969b.png");
    background-repeat: no-repeat;
    background-size: contain;
    width: 85%;
    height: 85%;
    top: 12%;
    left: -5%;
}

#I02_Ball01 {
    position: absolute;
    background-image: url("../img/NLU/S03/NLU03_I02_Ball01.744b8e69375c.png");
    background-repeat: no-repeat;
    background-size: contain;
    width: 18%;
    height: 18%;
    top: 28%;
    left: 37%;
}

#I02_Ball02 {
    position: absolute;
    background-image: url("../img/NLU/S03/NLU03_I02_Ball02.b54e6efb19d5.png");
    background-repeat: no-repeat;
    background-size: contain;
    width: 12%;
    height: 12%;
    top: 15%;
    left: 30%;
}

#I02_ele {
    position: absolute;
    background-image: url("../img/NLU/S03/NLU03_I02_ele.954ac308049d.png");
    background-repeat: no-repeat;
    background-size: contain;
    width: 115%;
    height: 115%;
    top: 0;
    left: -8%;
}

@media (min-width: 768px) {
    #I02 {
        width: 80%;
        height: 80%;
        top: 15%;
        left: 8%;
    }

    #I02_Ball01 {
        width: 20%;
        height: 20%;
        top: 30%;
        left: 44%;
    }

    #I02_Ball02 {
        width: 12%;
        height: 12%;
        top: 18%;
        left: 38%;
    }

    #I02_ele {
        width: 115%;
        height: 115%;
        top: -1%;
        left: 5%;
    }
}

/*S04_section04*/

#sec04_BG {
    margin-top: 16%;
    margin-bottom: 47%;
    width: 100%;
    height: auto;
}

@media (min-width: 768px) {
    #sec04_BG {
        margin-top: 27px;
        margin-bottom: 135px;
        width: 101.5%;
        height: auto;
    }
}

@media (min-width: 992px) {
    #sec04_BG {
        margin-top: 10%;
        width: 101%;
        height: auto;
    }
}

#sec04_t01 {
    position: absolute;
    background-image: url("../img/NLU/S04/NLU04_t01.65a7ff700b9f.png");
    background-size: contain;
    background-repeat: no-repeat;
    width: 58.5%;
    height: 5%;
    top: 5%;
    left: 26%;
}

#sec04_01_Arrow {
    position: absolute;
    background-image: url("../img/NLU/S04/NLU04_01_Arrow.50ab67065ea4.png");
    width: 70%;
    height: 4.7%;
    background-size: contain;
    background-repeat: no-repeat;
    left: 24.9%;
    top: 9.5%;
}

#sec04_01 {
    position: absolute;
    background-image: url("../img/NLU/S04/NLU04_01.abff33db16b4.png");
    width: 100%;
    height: 11%;
    background-size: contain;
    background-repeat: no-repeat;
    left: 7%;
    top: 15%;
}

#sec04_02 {
    position: absolute;
    background-image: url("../img/NLU/S04/NLU04_02.f3d7f249679b.png");
    width: 100%;
    height: 11.5%;
    background-size: contain;
    background-repeat: no-repeat;
    left: 7%;
    top: 49%;
}

#sec04_03_Arrow {
    position: absolute;
    background-image: url("../img/NLU/S04/NLU04_03_Arrow.6f271c721da5.png");
    width: 80%;
    height: 4.7%;
    background-size: contain;
    background-repeat: no-repeat;
    left: 9.9%;
    top: 59.5%;
}

#sec04_03 {
    position: absolute;
    background-image: url("../img/NLU/S04/NLU04_03.9f794d5ce84f.png");
    width: 100%;
    height: 13.3%;
    background-size: contain;
    background-repeat: no-repeat;
    left: 7%;
    top: 65%;
}

#sec04_line {
    position: absolute;
    background-image: url("../img/NLU/S04/NLU04_line.49d435f99f79.png");
    width: 56%;
    height: 13.3%;
    background-size: contain;
    background-repeat: no-repeat;
    left: 28%;
    top: 77%;
}

#sec04_t02 {
    position: absolute;
    background-image: url("../img/NLU/S04/NLU04_t02.bb682f13d721.png");
    width: 38%;
    height: 5%;
    background-size: contain;
    background-repeat: no-repeat;
    left: 30%;
    top: 86%;
}

@media (min-width: 768px) {

    #sec04_imgbox {
        height: 442px;
    }

    #sec04_t01 {
        width: 63%;
        height: 100%;
        top: 0%;
        left: 24.8%;
    }

    #sec04_01_Arrow {
        width: 65%;
        height: 100%;
        left: 23.75%;
        top: 3.5%;
    }

    #sec04_01 {
        width: 91%;
        height: 100%;
        left: 6%;
        top: 9%;
    }

    #sec04_02 {
        width: 90%;
        height: 100%;
        left: 6%;
        top: 39%;
    }

    #sec04_03_Arrow {
        width: 78.8%;
        height: 100%;
        left: 8.75%;
        top: 48%;
    }

    #sec04_03 {
        width: 89%;
        height: 100%;
        left: 7%;
        top: 53%;
    }

    #sec04_line {
        width: 58%;
        height: 100%;
        left: 27%;
        top: 63%;
    }

    #sec04_t02 {
        width: 39%;
        height: 100%;
        left: 29%;
        top: 71%;
    }

}

@media (min-width: 992px){
    #sec04_imgbox {
        height: 600px;
    }
}

@media (min-width: 1200px){
    #sec04_imgbox {
        height: 710px;
    }
}

.sec04_box {
    margin-bottom: 100px;
}

table {
    border-collapse: collapse;
    width: 100%;
}

table, th, td {
    border: 3px solid #b4bcbd;
}

th, td {
    padding: 10px;
    font-size: 1rem;
}

th h3 {
    font-size: 1.5rem;
}

th {
    color: #FFFFFF;
    background-color: #001380;
    vertical-align: top;
}

.table-title {
    margin-bottom: 20px;
}

.table-title h3 {
    font-weight: 600 !important;
    color: #001380;
    font-size: 1.5rem;
}

@media (min-width: 768px) {
    .sec04_box {
        margin-top: 10%;
        margin-bottom: 25%;
    }

    #sec04_box_3 {
        margin-top: 10%;
    }

    #sec04_box_3 p {
        margin-bottom: 10%;
    }

    .sec04_box p, #sec04_box_3 p {
        font-size: 0.85rem;
    }

    td {
        padding: 3px;
        font-size: 0.7rem;
    }

    th h3 {
        font-size: 1rem;
    }

    .table-title h3 {
        font-weight: 600 !important;
        color: #001380;
        font-size: 1rem;
    }
}

/*S05_section5*/
.content5 {
    text-align: center;
}

.img-box {
    position: relative;
    width: 100%;
    height: 135px;
}

@media (min-width: 768px) {
    .img-box {
        height: 310px;
    }
}

@media (min-width: 992px) {
    .img-box {
        height: 405px;
    }
}

@media (min-width: 1200px) {
    .img-box {
        height: 500px;
    }
}

.img-box img {
    position: absolute;
    width: 80%;
    left: 10%;
    height: auto;
}