.about .visual {
    position: relative;
    height: 690px;
    justify-content: center;
    box-sizing: border-box;
}
.about .visual .video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}
.about .visual .video video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.about .visual .box {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    width: 100%;
    text-align: center;
    gap: 30px;
    z-index: 5;
}


.about .company {
    position: relative;
}
.about .company .txt_box {
    position: relative;
    min-height: 580px;
    justify-content: center;
    background: url("../images/about_sec01_bg.png")no-repeat 50% 50% / cover;
    color: var(--white);
    font-size: 32px;
    line-height: 1.4;
    padding: 20px 0;
    box-sizing: border-box;
}


.about .strengths .sub_txt {
    font-size: 20px;
    line-height: 1.4;
}
.about .strengths .grid {
    gap: 30px;
}
.about .strengths .grid .item {
    width: calc(33.333% - 20px);
    min-height: 457px;
    background: #f9f9f9;
    padding: 20px 10px;
    font-size: 24px;
    font-weight: 500;
    line-height: 1.2;
    gap: 20px;
    justify-content: center;
    box-sizing: border-box;
}
.about .strengths .grid .item .icon {
    width: 200px;
    height: 200px;
    justify-content: center;
    margin: 0 auto;
}
.about .strengths .grid .item .icon svg {
    transform: scale(1);
    transition: all .3s;
}
.about .strengths .grid .item .icon svg path {
    transition: all .3s;
}
.about .strengths .grid .item:hover .icon svg {
    transform: scale(1.1);
}
.about .strengths .grid .item:hover .icon svg path {
    fill: var(--key-color);
}


.about .group {
    gap: 60px;
}
.about .group .sub_txt {
    font-size: 20px;
    line-height: 1.4;
    margin-top: 10px;
}
.about .group .tree .top {
    position: relative;
    padding-bottom: 120px;
    box-sizing: border-box;
}
.about .group .tree .top:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    display: block;
    width: 2px;
    height: 120px;
    border-right: 1px dashed #786F6F;
    box-sizing: border-box;
}
.about .group .tree .top .btn_color {
    width: max-content;
    padding: 16px 30px;
    box-sizing: border-box;
    gap: 10px;
    margin: 0 auto;
}
.about .group .tree .top .btn_color > strong {
    font-size: 48px;
    font-weight: 900;
}
.about .group .tree .top .btn_color p {
    font-size: 36px;
}
.about .group .tree .bottom {
    position: relative;
    gap: 40px;
}
.about .group .tree .bottom:before {
    content: '';
    position: absolute;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    display: block;
    width: calc(66.666% - -20px);
    border-bottom: 1px dashed #786F6F;
    box-sizing: border-box;
}
.about .group .tree .bottom > div {
    position: relative;
    width: calc(33.333% - 27px);
    background: #f9f9f9;
    gap: 30px;
    font-size: 20px;
    padding: 60px 30px;
    box-sizing: border-box;
}
.about .group .tree .bottom > div:before {
    content: '';
    position: absolute;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    display: block;
    width: 2px;
    height: 60px;
    border-right: 1px dashed #786F6F;
    box-sizing: border-box;
}
.about .group .tree .bottom > div:nth-child(2):before {
    display: none!important;
}
.about .group .tree .bottom > div:after {
    content: '';
    position: absolute;
    top: 50%;
    right: -40px;
    transform: translateY(-50%);
    display: block;
    width: 40px;
    height: 2px;
    border-bottom: 1px dashed #786F6F;
    box-sizing: border-box;
}
.about .group .tree .bottom > div:last-child:after {
    display: none!important;
}
.about .group .tree .bottom > div h4 {
    font-size: 36px;
    font-weight: 900;
    line-height: 1.2;
    text-transform: capitalize;
}
.about .group .list {
    gap: 30px;
}
.about .group .list .item {
    padding: 40px;
    background: #f9f9f9;
    gap: 40px;
    box-sizing: border-box;
}
.about .group .list .item .img {
    position: relative;
    width: 510px;
    min-height: 300px;
    overflow: hidden;
}
.about .group .list .item .img:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.2);
    z-index: 1;
    transition: all .3s;
}
.about .group .list .item .img img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1);
    transition: all .5s;    
}
.about .group .list .item .txt {
    flex: 1;
    width: 100%;
    gap: 30px;
    font-size: 20px;
    text-transform: uppercase;
}
.about .group .list .item .txt h3 {
    font-size: 36px;
    font-weight: 900;
    line-height: 1.2;
    text-transform: capitalize;
    transition: all .3s;
}
.about .group .list .item .txt ul {
    gap: 16px;
}
.about .group .list .item .txt ul li {
    position: relative;
    padding-left: 20px;
    box-sizing: border-box;
}
.about .group .list .item .txt ul li:before {
    content: '';
    position: absolute;
    top: 8px;
    left: 0;
    display: block;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--black);
}
.about .group .list .item:hover h3 {
    color: var(--key-color);
}
.about .group .list .item:hover .img:before {
    opacity: 0;
}
.about .group .list .item:hover .img img {
    transform: scale(1.1);
}



.about .history .roadmap-icon {
	display: block;
    width: 101px; 
    height: 48px; 
	line-height: 53px;
    position: relative;
	background: #FFFFFF;
	border: 1px solid #232323;
	border-radius: 3px;
	font-size: 24px;
	font-weight: 700;
	text-align: center;
}
.about .history .roadmap-slider:before {
    content: ""; 
    position: absolute; 
    top: 25px; 
    left: 0; 
    width: 100%; 
    border-bottom: 1px dashed #000;
}
.about .history .roadmap-content {
    padding-top: 50px; 
    padding-left: 75px; 
    position: relative;
}
.about .history .roadmap-content ul li {
    padding-bottom: 35px; 
    position: relative;
}
.about .history .roadmap-content ul li:last-child {
    padding-bottom: 0;
}
.about .history .phase-title {
    position: relative;
    font-size: 18px; 
    padding-bottom: 10px; 
    display: block; 
	padding-top: 4px;
	font-weight: 500;
}
.about .history .phase-title strong {
	margin-right: 3px;
}
.about .history .roadmap-content ul li:before {
    content: ""; 
    position: absolute; 
    top: 18px; 
    left: -23px; 
    width: 2px; 
    height: 100%; 
    border-left: 1px dashed;
}
.about .history .roadmap-content ul li p {
    font-size: 20px;
	line-height: 1.3;
}
.about .history .roadmap-content ul li p span {
	display: inline-block;
    font-size: 16px;
}
.about .history .roadmap-content ul li:last-child:before {
    content: unset;
}
.about .history .phase-title:before {
    content: ""; 
    position: absolute; 
    top: 1px; 
    left: -30px; 
    width: 15px; 
    height: 15px; 
    border: 1px solid; 
    background: #232323;
}
.about .history .roadmap-content:before {
    content: ""; 
    position: absolute; 
    top: 0px;
    left: 52px;
    width: 2px; 
    height: 50px; 
    border-left: 1px dashed;
}
.about .history .roadmap .patter {
    position: absolute; 
    top: 0; 
    left: 0; 
    opacity: 0.02;
}
.about .history .roadmap .patter-2 {
    top: unset; 
    left: unset; 
    right: 0; 
    bottom: 0;
}
.about .history .roadmap-icon:before {
    background: linear-gradient(135deg, #3329b2 0%, #0ac6d4 100%);
}
.about .history .roadmap-icon:after {
    background: #1c0252;
}
.about .history .phase-title:after {
    background: #fff;
}
.about .history .roadmap-content:before {
    border-color: #000;
}



.about .contact .sub_txt {
    font-size: 20px;
    line-height: 1.4;
}
.about .contact .location .root_daum_roughmap {
    width: 100%;
}
.about .contact .location .root_daum_roughmap .wrap_map {
    height: 500px;
}
.about .contact .location .cont {
    display: none;
}
.about .contact .info {
    gap: 16px;
    justify-content: center;
}
.about .contact .info p {
    font-size: 20px;
    line-height: 1.2;
    box-sizing: border-box;
}
  


@media screen and (max-width: 1500px) {
    .about .company {
        overflow: hidden;
    }
}
@media screen and (max-width: 1440px) {
    .about .visual {
        height: 580px;
    }

    .about .company .txt_box {
        min-height: 500px;
        font-size: 28px;
    }

    .about .strengths .grid {
        gap: 20px;
    }
    .about .strengths .grid .item {
        width: calc(33.333% - 14px);
        min-height: 230px;
        font-size: 20px;
        gap: 10px;
    }
    .about .strengths .grid .item .icon {
        width: 150px;
        height: 150px;
    }
    .about .strengths .grid .item:nth-child(2) .icon svg {
        width: 70%;
        margin: 0 auto;
    }

    .about .group .tree .top .btn_color > strong {
        font-size: 38px;
    }
    .about .group .tree .top .btn_color p {
        font-size: 30px;
    }
    .about .group .tree .bottom > div h4 {
        font-size: 30px;
    }
    .about .group .list .item {
        gap: 25px;
    }
    .about .group .list .item .txt h3 {
        font-size: 30px;
    }
    .about .group .list .item .img {
        width: 430px;
    }
}
@media screen and (max-width: 1024px) {
    .about .visual {
        height: 460px;
        margin-top: 35px;
    }

    .about .company .txt_box {
        min-height: 330px;
        font-size: 20px;
    }
    .about .strengths .sub_txt {
        font-size: 18px;
    }
    .about .strengths .grid .item {
        min-height: 270px;
        font-size: 16px;
    }
    .about .strengths .grid .item .icon {
        width: 100px;
        height: 100px;
    }


    .about .group .sub_txt {
        font-size: 18px;
    }
    .about .group .tree .top {
        padding-bottom: 80px;
    }
    .about .group .tree .top:after {
        height: 80px;
    }
    .about .group .tree .top .btn_color > strong {
        font-size: 30px;
    }
    .about .group .tree .top .btn_color p {
        font-size: 24px;
    }
    .about .group .tree .bottom {
        gap: 20px;
    }
    .about .group .tree .bottom:before {
        top: -40px;
        width: calc(66.666% - -12px);
    }
    .about .group .tree .bottom > div {
        width: calc(33.333% - 14px);
        padding: 30px 15px;
        gap: 15px;
    }
    .about .group .tree .bottom > div:before {
        top: -40px;
        height: 40px;
    }
    .about .group .tree .bottom > div h4 {
        font-size: 24px;
    }
    .about .group .tree .bottom > div {
        font-size: 16px;
    }

    
    .about .group .list .item .img {
        width: 100%;
    }


    .about .history .roadmap-icon {
		width: 90px;
		height: 43px;
		line-height: 48px;
		font-size: 20px;
	}
	.about .history .roadmap-content:before {
		left: 47px;
	}
	.about .history .phase-title:before {
		left: -26px;
	}
	.about .history .roadmap-content {
		padding-left: 65px;
	}
	.about .history .roadmap-content ul li:before {
		left: -18px;
	}
	.about .history .phase-title {
		font-size: 16px;
	}
	.about .history .roadmap-content ul li p {
		font-size: 16px;
	}
	.about .history .roadmap-content ul li p span {
		font-size: 13px;
	}

    .about .contact .location .root_daum_roughmap .wrap_map {
        height: 350px;
    }
    .about .contact .info p {
        font-size: 16px;
    }
}
@media screen and (max-width: 768px) {
    .about .visual {
        height: 300px;
    }


    .about .history .roadmap-icon {
		width: 70px;
	}
	.about .history .roadmap-content {
		padding-left: 55px;
	}
	.about .history .roadmap-content:before {
		left: 38px;
	}
	.about .history .roadmap-content ul li p {
		font-size: 14px;
	}
}
@media screen and (max-width: 480px) {
    .about .contact .location .root_daum_roughmap .wrap_map {
        height: 290px;
    }
}
@media screen and (max-width: 380px) {
    
}