#top_background_main {

    position: absolute;
    top:0px;
    left:0px;

    width: 100%;
    height: 100vh;
    /*background-image: url(/images/back_main_1.jpg);*/
    background-size: cover;
    transition: background-image 2s ease-in-out;
    
    padding: 0px;
    margin: 0px;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    z-index: 1;
}


#top_background_video {
	position: absolute;
    top:0px;
    left:0px;

    width: 100%;
    height: 100vh;
    
    padding: 0px;
    margin: 0px;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    z-index: 1;
}

#bg_video{
  position: absolute;
  left: 0;
  top: 0;
  
  width: 100%;
  height: 100vh;
  
  object-fit: cover; 
  
  padding:0px;
  margin:0px;
  
  z-index: -1000;
}

.background_dark{
	position: absolute;
  	left: 0;
  	top: 0;
  	
  	width : 100%;
  	height: 100vh;
  	
  	background-color:#000;
  	opacity : 0.3;
  	
  	z-index : 2;
}


#top_blank {
    position: relative;
    float: left;
    width: 100%;
    height: calc(100vh - 260px);
    /**footer 높이 만큼 blank 설정 */
}

.main_text_1 {

    font-size: 24px;
    font-weight: 500;
    font-stretch: normal;
    font-style: normal;
    line-height: normal;
    letter-spacing: normal;
    text-align: center;
    color: #fff;

    animation: fadein 3s;
    -moz-animation: fadein 3s;
    /* Firefox */
    -webkit-animation: fadein 3s;
    /* Safari and Chrome */
    -o-animation: fadein 3s;
    /* Opera */
    
    z-index:99;
}

@keyframes fadein {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@-moz-keyframes fadein {

    /* Firefox */
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@-webkit-keyframes fadein {

    /* Safari and Chrome */
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@-o-keyframes fadein {

    /* Opera */
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}


.main_text_2 {

    font-family: Poppins;
    font-size: 55px;
    font-weight: 500;
    font-stretch: normal;
    font-style: normal;
    line-height: 1.4;
    letter-spacing: normal;
    text-align: center;
    color: #fff;

    animation: fadein 5s;
    -moz-animation: fadein 5s;
    /* Firefox */
    -webkit-animation: fadein 5s;
    /* Safari and Chrome */
    -o-animation: fadein 5s;
    /* Opera */

 	z-index:99;
}


.main_menu_banner {
    position: relative;
    float: left;
    margin-top: 70px;

    width: 100%;
    height: 680px;

    background-color: #000033;

    z-index: 1;
}

.main_menu_banner .banner {
    position: relative;
    float: left;
    width: calc(20% - 5px);
    height: 100%;

    transition: width 0.5s;
}

.main_menu_banner .banner_last {
    position: relative;
    float: right;
    width: 20%;
    height: 100%;
}

.main_menu_banner .banner_blank {
    position: relative;
    float: left;
    width: 5px;
    height: 100%;
    background-color: #fff;

    z-index: 2;
}

#tech_banner_1 {
    background-image: url(/images/main_its.jpg);
    background-size: cover;
}

#tech_banner_2 {
    background-image: url(/images/main_banner_bis.jpg);
    background-size: cover;
}

#tech_banner_3 {
    background-image: url(/images/main_banner_bms.jpg);
    background-size: cover;
}

#tech_banner_4 {
    background-image: url(/images/main_afc.jpg);
    background-size: cover;
}

#tech_banner_5 {
    background-image: url(/images/main_ai.jpg);
    background-size: cover;
}

.banner_info {
    position: absolute;
    bottom: 80px;
    left: 80px;
    color: #fff;
    display: none;
}

.banner_title {
    font-family: Pretendard;
    font-size: 40px;
    font-weight: bold;
    font-stretch: normal;
    font-style: normal;
    line-height: normal;
    letter-spacing: normal;
    text-align: left;
}

.banner_title_text {

    font-family: Pretendard;
    font-size: 20px;
    font-weight: 500;
    font-stretch: normal;
    font-style: normal;
    line-height: 1.5;
    letter-spacing: normal;
    text-align: left;

}

.main_part {
    position: relative;
    float: left;
    width: 100%;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.main_part:nth-child(even) {
    background-color: #f1f2f3;
}

.main_part .title {

    margin-top: 120px;

    font-family: Poppins;
    font-size: 24px;
    font-weight: bold;
    font-stretch: normal;
    font-style: normal;
    line-height: normal;
    letter-spacing: normal;

    text-align: center;
    color: #0079b9;
}

.main_part .title_text {

    margin-top: 20px;
    font-family: Pretendard;
    font-size: 50px;
    font-weight: 800;
    font-stretch: normal;
    font-style: normal;
    line-height: normal;
    letter-spacing: normal;
    text-align: center;
    color: #000;
}


.main_part .solution_part {
    position: relative;
    float: left;
    width: 1400px;
    height: 300px;

    margin: 70px 0px 120px 0px;
}

.main_part .solution_part .solu_part {
    position: relative;
    float: left;
    width: 684px;
    height: 100%;
}

.solu_title {

    position: absolute;
    top: 156px;
    left: 50px;

    font-family: Poppins;
    font-size: 40px;
    font-weight: bold;
    font-stretch: normal;
    font-style: normal;
    line-height: 1.5;
    letter-spacing: normal;
    text-align: left;
    color: #fff;
}

.solu_detail {
    position: absolute;
    bottom: 50px;
    left: 50px;
    font-family: Poppins;
    font-size: 20px;
    font-weight: 500;
    font-stretch: normal;
    font-style: normal;
    line-height: normal;
    letter-spacing: normal;
    text-align: left;
    color: #fff;
}

.brand_area {
    width: 100%;
    overflow: hidden;    
}

.brand_item_list {
    margin: 140px 0px 100px 0px;

    display: flex;
    position: relative;
    
    animation: scroll-animation 30s linear infinite;
}

.brand_item {
    height:100px;
    margin-right:70px;
    font-size: 36px;
}

@keyframes scroll-animation {
    0% {
        left: 0;
    }

    100% {
        left: -4500px;
        /* 텍스트 width와 동일 */
    }
}



/*** 지도 부분 ***/

.map_img {
    position: relative;
    float: left;
    width: 420px;
    height: 500px;
}

#img_seoul {
    position: absolute;
    top: 0px;
    left: 0px;
    width: 380px;
}

#img_jeju {
    position: absolute;
    top: 400px;
    left: 100px;
    width: 150px;
}

.map_marker{
    width:17px;
    height:25px;
    text-align: center;
    color:#fff;
    font-size:14px;
    font-weight: bold;
    background-image: url(/images/map/Market.svg);

    position:absolute;
}




.map_text {
    position: relative;
    float: left;
    width: 560px;
    height: 500px;
}

.map_text table {
    width: 560px;
    padding: 0px;
    margin: 0px;
    
    border-collapse: collapse;
}

.map_text table td {
    height: 50px;
    border-bottom: 1px solid #ebeef1;

    padding: 0px;
    margin: 0px;
    
    border-collapse: collapse;
}


.map_part_world{
    position:relative;
    float:left;
    width : 1200px;
    margin-top:40px;
}

#img_world{
    width:903px;
    height:660.5px;
}

.map_text_world{
    position:absolute;
    right:0px;
    top:150px;
    background-color:#fff;
}

.map_text_world table {
    width : 440px;
    padding: 0px;
    margin: 0px;
    border-collapse: collapse;
}

.map_text_world table td {
    height: 50px;
    border-bottom: 1px solid #ebeef1;
    border-collapse: collapse;

    padding: 0px;
    margin: 0px;
}

.circle-number {
    width: 23px;
    height: 23px;
    background-color: #0079b9;
    color: white;
    border-radius: 50%;
    /* 원형 모양으로 만듦 */
    display: inline-flex;
    justify-content: center;
    align-items: center;
    font-family: Arial, sans-serif;
    font-size: 16px;
    font-weight: bold;
    margin-right: 10px;
    /* 숫자 사이의 간격을 조절 */
}

.map_text_1 {

    font-size: 16px;
    font-weight: bold;
    font-stretch: normal;
    font-style: normal;
    line-height: normal;
    letter-spacing: normal;
    text-align: left;

}

.map_text_2 {

    font-size: 14px;
    font-weight: 600;
    font-stretch: normal;
    font-style: normal;
    line-height: normal;
    letter-spacing: normal;
    text-align: center;


}

.map_text_3 {
    font-size: 13px;
    font-weight: normal;
    font-stretch: normal;
    font-style: normal;
    line-height: normal;
    letter-spacing: normal;
    text-align: left;
    color: #0b0b0b;

}






.contact {
    position: relative;
    float: left;
    width: 100%;
    height: 390px;
    background-image: url(/images/main_back_ask.jpg);
    background-size: cover;


    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

}

.contact_title{
   
        opacity: 0.5;
        font-family: Poppins;
        font-size: 24px;
        font-weight: bold;
        font-stretch: normal;
        font-style: normal;
        line-height: normal;
        letter-spacing: normal;
   
        color: #fff;
   
}

.contact_text{
   
        font-family: Pretendard;
        font-size: 50px;
        font-weight: bold;
        font-stretch: normal;
        font-style: normal;
        line-height: 1.2;
        letter-spacing: normal;
   
        color: #fff;
   
}

.btn_white_border {

    width: 160px;
    height: 48px;
    flex-grow: 0;
    margin: 34px 332px 0;
    padding: 13px 48px 13px 49px;
    border-radius: 5px;
    border: solid 1px #fff;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    font-family: Pretendard;
    font-size: 18px;
    font-weight: 500;
    font-stretch: normal;
    font-style: normal;
    line-height: normal;
    letter-spacing: normal;

    color: #fff;
}
.btn_white_border:hover{
	cursor:pointer;
}