section {
    text-align: center;
}

/*top*********************************/
section.top {
    width: 100%;
    position: relative;
    padding-top: 100px;
}

/*section.about*********************************/
section.center {
    width: 1200px;
}

section.intro {
    position: relative;
    overflow: hidden;
    margin-top: 40px;
}

section.intro > .center {
    width: 1200px;
    margin: 0 auto;
}

section.intro > img {
    width: 546px;
    height: 400px;
}

section.intro .txt {
    width: 1200px;
    float: left;
    overflow: hidden;
}

section.intro .txt > h2 {
    text-align: left;
    margin-bottom: 20px;
    font-family: 'NanumSquareEB';
    font-size:55px;
}

section.intro .txt > h2 > img {
    height: 44px;
}

section.intro .txt > p {
    color: #1a1a1a;
    font-size: 16px;
    line-height: 26px;
    text-align: left;
    /*margin-bottom: 50px;*/
}

section.intro .txt > p > img {
    width:
        /*204*/
        px;
    height: 10.92px;
    margin-top: 6px;
}

section.intro .intro_img {
    width: 100%;
    overflow: hidden;
    margin-bottom: 150px;
}

.intro_img > img {
    float: left;
}

.intro_img > img:first-child {
    margin-bottom: 18px;
}

.intro_img > img:nth-child(2) {
    float: left;
}

.intro_img > img:nth-child(3) {
    float: right;
}

/*section.security*********************************/
section.security {
    width: 100%;
    background-color: #ffffff;
}

section.security > .center {
    width: 1200px;
    margin: 0 auto;
    overflow: hidden;
    margin-bottom: 100px;
}

section.security > .center > .introduce {
    width: 1200px;
    height: 280px;
}

section.security > .center > .introduce > img {
    float: left;
    width: 580px;
}

section > .center > .introduce > .txt {
    float: right;
    width: 570px;
}

section.security > .center > .introduce > .txt > h3 {
    font-size: 35px;
    text-align: left;
    position: relative;
    margin-bottom: 20px;
    font-family: 'NanumSquareEB';
}

section > .center > .introduce > .txt > p {
    margin-top: 20px;
    color: #1a1a1a;
    font-size: 16px;
    line-height: 26px;
    text-align: left;
}

div.component {
    margin-top: 100px;
    width: 1200px;
    height:
        /*450*/
        px;
}

div.component > .center {
    width: 1200px;
    margin: 0 auto;
    overflow: hidden;
    margin-bottom: 100px;
}

div.component > .center > img {
    margin-top: 70px;
}

/*h 태그 폰트 스타일*/
h3,
h4,
h5,
h6 {
    font-size: 35px;
    position: relative;
    margin-bottom: 20px;
    font-family: 'NanumSquareEB';
}

div.component > .center > h3 > div.bar {
    margin-top: 20px;
    width: 50px;
    border-bottom: 3px solid #3783b6;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

div.video {}

div.video > .center {}

div.video > .center > iframe:first-of-type {
    float: left;
}

div.video > .center > iframe:last-of-type {
    float: right;
}

div.video > .center > button {
    margin: 100px 0;
    width: 260px;
    height: 66px;
    border: 5px solid #3783B6;
    border-radius: 40px;
    font-size: 20px;
    color: #3783B6;
    line-height: 56px;
    font-family: 'NanumSquareB';
    background-color: #fff;
}


/*delivery robot 배달로봇 추가사항*/
section.delivery > .center > .introduce {
    width: 1200px;
    height: 280px;
}

section.delivery > .center > .introduce > .txt > h4 {
    font-size: 35px;
    text-align: left;
    position: relative;
    margin-bottom: 20px;
    font-family: 'NanumSquareEB';
}

section.delivery > .center > .introduce > .txt {
    float: left;
}

section.delivery > .center > .introduce > img {
    float: right;
}

div.component > .center > img {
    margin-top: 70px;
}

div.component > .center > h4 > div.bar {
    margin-top: 20px;
    width: 50px;
    border-bottom: 3px solid #3783b6;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

/*uConnect*********************************/
section.uconnect {margin-top:px !important;}

section.uconnect > .center h5 > div.bar {
    margin-top: 20px;
    width: 50px;
    border-bottom: 3px solid #3783b6;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

section.uconnect > .center > img {
    margin-top: 70px;
}

section.uconnect > .center > .introduce > p {
    margin: 70px 0;
}
ul.function2 {
    display: none;
}

ul.function {
    overflow: hidden;
    margin-bottom: 150px;
}

ul.function > p {
    font-size: 25px;
    font-family: 'NanumSquareEB';
    margin: 70px 50px;
}

ul.function > li {
    width: 110px;
    height: 110px;
    margin-left: 105px;
    border: 6px solid #2e85cf;
    border-radius: 100%;
    /*float: left;*/
    display: inline-block;
}

ul.function > li > a {
    display: block;
    width: 100px;
    height: 100px;
    border: 5px solid #96c2e7;
    border-radius: 100%;
    position: relative;
}

ul.function > li > a > p {
    width: 100px;
    height: 100px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -15%);
}

/*scenario*********************************/
./*timeline{display: none;}
.timeline2{margin:70px 0 150px 0;}
.timeline2>img{width:70%;}*/
section.scenario h6 > div.bar {
    margin-top: 20px;
    width: 50px;
    border-bottom: 3px solid #3783b6;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

/*
section.scenario .timeline{margin:70px 0 50px 0;}
*/
.timeline {
    display: none;
}

.timeline2 {
    display: block !important;
}

.timeline2 {
    width: 90%;
    margin: 0 auto;
}

.timeline2 > img {
    width: 60%;
    margin-top: 70px;
    margin-bottom: 150px;
}
/********************************timeline animation START*/
.fade {
    padding: 20px 30px;
    background-color: #FFFFFF;
    position: relative;
    border-radius: 6px;
    opacity: 1;
}

/*
* {
    box-sizing: border-box;
}
*/

/* The actual timeline (the vertical ruler) */
.timeline {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}

/* The actual timeline (the vertical ruler) */
.timeline::after {
    content: '';
    position: absolute;
    width: 6px;
    background-color: #2e85cf;
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -3px;
}

.container {
    padding: 10px 40px;
    position: relative;
    background-color: inherit;
    width: 100%;
    height: 235px;
}
.container>.fade{text-align: center;position:relative; height:203px;}
.container>.fade>.txt{position:absolute; left:50%;top:50%; transform: translate(-50%,-50%);}
.container>.fade>.txt>p{line-height: 26px;}
.container>.fade>.txt>p>strong{font-size:20px; font-family: 'NanumSquareB'; color:#184bb4;}

.container>span.step{position:absolute; left:50%;top:50%; transform: translate(-50%,-50%); z-index: 1;width:;height:100px; text-align: center; font-size:22px; font-family: 'NanumSquareEB'; color:#2e85cf;}
.container>span.step>strong{font-size:42px; line-height: 28px;}

.left::after {
    content: '';
    position: absolute;
   /* width: 25px;
    height: 25px;
    right: -17px;
    background-color: white;
    border: 4px solid #2e85cf;
    top: 15px;
    top:50%;
    transform: translateY(-50%);
    border-radius: 50%;*/
    z-index: 1;
}

/* Place the container to the left */
.left, .right {
    left: 0;
    float: left;
    width: 50%;
}

/* Place the container to the right */
.right {
    /*left: 0%;*/
    
}

.right::after {
    left: -16px;
}
.left{line-height: 243px;}


/* Media queries - Responsive timeline on screens less than 600px wide */
@media screen and (max-width: 600px) {

    /* Place the timelime to the left */
    .timeline::after {
        left: 31px;
    }

    /* Full-width containers */
    .container {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }

    /* Make sure that all arrows are pointing leftwards */
    .container::before {
        /*left: 60px;
    border: medium solid white;
    border-width: 10px 10px 10px 0;
    border-color: transparent white transparent transparent;*/
    }

    /* Make sure all circles are at the same spot */
    .left::after,
    .right::after {
        left: 15px;
    }

    /* Make all right containers behave like the left ones */
    .right {
        left: 0%;
    }
}

/********************************timeline animation END*/




/*tablet&mobile*/
@media screen and (max-width:959px) {
    section {
        width: 100%;
        overflow: hidden;
        text-align: center;
    }

    section.top {
        width: 90%;
    }

    section.top > img {
        width: 100%;
    }

    section.intro {
        width: 90%;
        margin-top: 30px;
    }

    section.intro .txt {
        width: 100%;
    }

    section.intro .txt > h2 {
        width: 100%;
        height: 100%;
        margin-bottom: 10px;
    }

    section.intro .txt > h2 > img {
        width: auto !important;
        height: 17px !important;
    }

    section.intro .txt > p {
        text-align: justify;
        margin-bottom: 30px;
    }

    section.intro > img {
        width: 70%;
        height: 100%;
    }

    section.intro_img {
        overflow: hidden;
        width: 100%;
    }

    section.intro .intro_img {
        margin-bottom: 50px;
    }

    .intro_img > img:first-child {
        margin-bottom: 13px;
    }

    .intro_img > img:nth-child(1) {
        width: 100%;
    }

    .intro_img > img:nth-child(2) {
        width: 48%;
    }

    .intro_img > img:nth-child(3) {
        width: 48%;
    }
    
    
    div.component {width: 100%;}

    div.component > .center {width: 100%;}

    div.component > .center > img {width:100%;}

    section.security {
        width: 90%;
    }

    section.security > .center {
        width: 100%;
        text-align: center;
        margin-bottom: 50px;
    }

    section.security > .center > p {
        text-align: justify;
    }



    section.detail > .center > div.logi {
        width: 100%;
    }

    section.detail > .center > div.logi > img {
        width: 70%;
        height: 100%;
    }
    
    section.uconnect>.center>img{width:100%;}
    
    .timeline2>img {width: 100%;}
    section.detail {
        width: 90%;
        text-align: center;
        margin-top: 50px;
    }

    section.detail > .center {
        width: 100%;
    }

    section.detail > .center > ul {
        width: 100%;
        margin-left: 0;
    }

    section.detail > .center > ul:first-of-type {
        border-right: 0;
    }

    section.detail p {
        border-bottom: 1px solid rgba(196, 196, 196, 0.2);
    }

    section.detail p > img {
        display: block;
        float: right;
        width: 26px;
        margin-bottom: 2px;
    }

    section.detail ul > li > p > span:first-of-type {
        font-size: 20px;
    }

    section.detail ul > li > p > span:last-of-type {
        font-size: 25px;
    }

    section.detail ul ul {
        display: none;
    }

    section.detail ul:hover {
        cursor: pointer;
    }

    section.detail > .center > ul {
        margin-top: 0;
    }

    section.detail ul > li.energy > ul {
        width: 50%;
    }


    .open {
        transform: rotate(180deg);
        transition: all .25s ease;
    }

    section.detail > .center {
        padding-bottom: 100px;
    }

    section.security > .center > h3 {
        font-size: 25px;
        line-height: 35px;
    }

    section.detail > .center > h4 {
        font-size: 25px;
    }
}

 

/*tablet*/
@media screen and (min-width:768px) and (max-width:959px) {
    section {
        width: 100%;
        overflow: hidden;
    }

    .security ul.process_pic > li {
        float: left;
        width: 310px;
        height: 303px;
    }

    section.detail > .center > div.logi > img {
        width: 478px;
        height: 350px;
    }
    section.security .video>.center{width:100% !important;}
    ul.function {
        margin-bottom: 100px;
    }

    ul.function > p {
        font-size: 16px;
        font-family: 'NanumSquareEB';
        margin: 30px 50px;
    }

    ul.function > li {
        width: 80px;
        height: 80px;
        border-radius: 100%;
        font-size: 12px;
        margin: 0 auto;
        border:3px solid #2e85cf;
        margin:10px;
    }

    ul.function > li > a {
        display: block;
        width: 74px;
        height: 74px;
        border-radius: 100%;
        position: relative;
        margin: 0 auto;
        border:3px solid #96c2e7;
    }

    ul.function > li > a > p {
        width: 100px;
        height: 100px;
        position: absolute;
        left: 50%;
        top: 50%;
        width: 18% transform: translate(-50%, -15%);
    }
}

/*mobile*/
@media screen and (max-width:767px) {
    br.pc{display: none;}
    ul.function {margin-bottom: 100px;}
    h2, h3, h4, h5, h6{font-size:25px !important;}
    
    section.security > .center > .introduce > .txt > h3{font-size:25px;}
    section.security > .center > .introduce > .txt > h4{font-size:25px !important;}
    
    section.intro .txt > h2 > img {
        width: 100%;
        height: 100%;
    }

    section.security > .center > ul.mobile_txt {display: block;}
    
    
    section.security{width:90%;}
    section.security >.center{width:100%;}
    section.security >.introduce{width:100% !important; border:1px solid red;}
    section.security > .center > .introduce {width:100%;
    }
    section.security > .center > .introduce>img {width:100%
    }
    section.security .introduce .txt{width: 100%; margin-top:30px; float:left;}
    
    

    section.security .video>.center>button{
    margin: 50px 0;
    width: 150px;
    height: 44px;
    border: 3px solid #3783B6;
    border-radius: 40px;
    font-size: 16px;
    color: #3783B6;
    line-height: 40px;
    font-family: 'NanumSquareB';
    background-color: #fff;
    }
    
    section.security .component{width:90%; margin:0 auto; margin-top:30px;}
    section.security .component>.center{width:100%;margin-bottom:50px;}
    section.security .component>.center img{width:100%;}
    section.security .component h3{font-size:25px;}
    .mobile_txt {
        margin-top: 10px;
        text-align: left;
    }

    section.uconnect{}
    section.uconnect>.center{width:90%;}
    section.uconnect>.center>img{width:100%; margin-top:0;}
    ul.function2{display: none;}
    ul.function{display: block;}

    section.uconnect > .center > .introduce > p{
        margin-bottom:50px;
        text-align: left;
    }
ul.function > p {
    font-size: 16px;
    font-family: 'NanumSquareEB';
    margin: 30px 50px;
}

ul.function > li {
        width: 58px;
        height: 58px;
        border-radius: 100%;
        font-size: 12px;
        margin: 0 auto;
        border:2px solid #2e85cf;
        margin:1px;
    }

    ul.function > li > a {
        display: block;
        width: 54px;
        height: 54px;
        border-radius: 100%;
        position: relative;
        margin: 0 auto;
        border:2px solid #96c2e7;
    }

ul.function > li > a > p {
    width: 100px;
    height: 100px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -15%);
}
    
    .container>span.step{left:8%;height:50px;font-size:14px;padding:20px 20px 60px 20px;}
    .container>span.step>strong{font-size:24px;line-height:22px;}
    .left{
    left: 0;
    float: left;
    width:50%;
    padding:0;
    }
    .left>img{
        width:100%;
    }
    .right {
    left: 0;
    float: left;
   width: 50%;
}
    .right>.txt{width: 70%;}
    .left>img{vertical-align: middle;}
    
    .timeline{display: none;}
.timeline2{display: block !important;}
.timeline2{width:90%; margin:0 auto;}
.timeline2>img{/*width:70%; */margin-top:70px; margin-bottom:100px;}
    div.video > .center>div{height:190px !important;}
    div.video > .center iframe{width:100% !important; height:190px !important;}
    .mobile_txt > div {
        width: 8px;
        height: 8px;
        border-radius: 100%;
        background-color: #888888;
        float: left;
        margin:
            /*4*/
            9px 5px 0 0;
    }

    .mobile_txt > p {
        margin-top: 5px;
    }

    /* .security ul.process_pic>li>p{float:left;width: 50%; top:50%; transform:translateY(-50%);margin-top:56px;}*/

    section.security > .center > h3 > img {
        /*width: 324px;height: 19px;*/
        display: none;
    }

    section.detail br.mobile {
        display: block;
    }

}