:root {
    --blue_100: #237CFF;
    --blue_200: #0067FF;
    --black_33: #333333;
    --Neutral: #F9FAFB;
    --Neutral_200: #F0F0F0;
    --Neutral_300: #CCD4E0;
    --Neutral_500: #66768E;
    --Neutral_800: #1C2636;
    --Neutral_33: #CCCCCC;
    --white: #ffffff;
    --black: #000000;
    --Greys-Blue-Grey-700: #737791;
    --dark_grey: #282828;
    --yellow: #ffc043;
}

html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: 'Pretendard';
    font-size: 16px;
    color: var(--white);
}

body {
    margin: 0;
    padding: 0;
    color: var(--white);
    background-color: var(--black);
}

main {
    display: flex;
    flex-direction: column;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}

.section {
    max-width: 113.5rem;
    margin: 0 auto;
    position: relative;
    padding: 4.2rem 3rem;
    width: 100%;
}

.bg_white {
    background-color: var(--white);
    color: var(--black);
}


.card_items {
    margin-top: 50px;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 30px;
}

.card {
    /*border: 1px solid #F9FAFB;*/
    flex: 1 1 20%;
    /*width: 25%;*/
}


header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 0;
    z-index: 100;
    /*border: 1px solid #ffd800;*/
    /*padding:17px;*/
}

    header h1 {
        top: 20px;
        left: 40px;
        z-index: 101;
    }

    header h1 {
        position: fixed;
    }

/*@media (min-width: 1280px) {
    body:not(.scroll-has) nav {*/
/*padding-top: 12px;*/
/*}
}

@media (min-width: 1280px) {
    nav {
        bottom: auto;
        right: 0;
        left: 0;
        background: transparent;
    }
}*/

nav {
    top: 0;
    bottom: 0;
    /*right: -100vw;*/
    /*background: black;*/
    z-index: 100;
    display: flex;
    width: 100%;
    justify-content: center;
    padding-top: 17px;
}




    /*@media (min-width: 1280px) {
    nav > ul {*/
    /*width: 816px;*/
    /*}
}

@media (min-width: 1280px) {
    nav > ul {
        display: inline-flex;
    }
}*/

    nav ul {
        text-align: center;
    }

    nav > ul {
        display: inline-flex;
    }

        nav > ul li {
            font-size: 30px;
            padding: 20px;
            font-weight: 700;
        }

/*.under-fixed {
    position: fixed;
    left: 0;
    right: 0;
    z-index: -1;
}
*/


.main_vod {
    position: relative;
    overflow: hidden;
    height: 100vh;
    height: calc(var(--vh, 1vh)* 100);
}

.main_vod video {
    min-width: 100%;
    min-height: 100%;
    width: auto;
}

.main_vod video {
    position: absolute;
    top: 50%;
    left: 50%;
    -moz-transform: translateX(-50%) translateY(-50%);
    -webkit-transform: translateX(-50%) translateY(-50%);
    -o-transform: translateX(-50%) translateY(-50%);
    -ms-transform: translateX(-50%) translateY(-50%);
    transform: translateX(-50%) translateY(-50%);
}

video {
    display: block;
}

video {
    object-fit: contain;
    overflow-clip-margin: content-box;
    overflow: clip;
}

.simply-scroll .simply-scroll-clip {
    width: 100% !important;
    height: 120px !important;
}

.simply-scroll {
    width: 100% !important;
    overflow: hidden;
    height: 120px !important;
}

    .simply-scroll .simply-scroll-list li {
        float: left;
        width: 290px;
        height: 120px !important;
    }

}

/*.simply-scroll {
    width: 576px;
    height: 200px;
    margin-bottom: 1em;
}*/

.simply-scroll-container {
    position: relative;
}

h3 {
    font-size: 38px;
}


h4 {
    font-size: 28px;
    font-weight: 500;
}

h3.title {
    /*color: #333;*/
    font-weight: 600;
    line-height: 120%;
}

.partner {
    margin-top: 50px;
}

.bg_grey {
    /*background-color: #f5f7fa;*/
    background-color: var(--dark_grey);
}

.menu.active {
    color:var(--yellow);
}

h2 {
    font-size: 48px;
    font-weight: 700;
    letter-spacing: -.5px;
    /*color: #fff;*/
    line-height: 120%;
    margin-top: 10px;
}

.ces {
    display: flex;
    align-items: center;
    gap: 30px;
    justify-content: center;
}

p.title_desc {
    font-size: 20px;
    font-weight: 500;
    margin-top: 10px;
}

.product {
    margin-top: 50px;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 30px;
}

.product .item {
    /*border: 1px solid #F9FAFB;*/
    flex: 1 1 30%;
    /*width: 25%;*/
    /*border: 2px solid #e1e1e1;*/
    border: 2px solid #787878;
    border-radius: 20px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    cursor: pointer;
    position: relative;
}

    .product h4 {
        font-weight: 600;
        color: #ffc043;
    }



.yellow {
    color: #ffc043;
}

/*
.product .ico {
    padding: 0;
    color: #fff;
    margin: 20px 0;
    font-size: 40px;
    text-align: center;
    position: relative;
    background-color: #333;
    display: inline-block;
    width: 100px;
    height: 100px;
    line-height: 100px;
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    border-radius: 50%;
    background-color: #dd5828;
}*/


.product img {
    width: 100%;
    height: auto;
    display: block;
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
    transition: transform 0.3s ease;
}

.product .img {
    width: 100%;
    /*height: auto;
    display: block;
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
    transition: transform 0.3s ease;*/
}


img, object {
    vertical-align: top;
}

img, fieldset {
    border: none;
}

img {
    overflow-clip-margin: content-box;
    overflow: clip;
}

footer {
    /*margin: 20px;*/

    line-height: 30px;
}

.info {
    display: flex;
    gap: 70px;
}

    .info .title {
        color: #86CDD3;
        font-size: 16px;
        font-weight: 600;
        margin-right: 12px;
    }

.sub_main {
    margin-top: 120px;
}

.contact, .about {
    display: flex;
    flex-direction: column;
    gap: 50px;
    margin-top: 20px;
    margin-bottom:20px;
    line-height: 32px;
    font-size: 22px;
}

.contact .item, .about .item {
        
    border: 2px solid #787878;
    border-radius: 20px;
    padding: 20px 30px 30px 30px;
    line-height: 40px;
}


.about .item {
    font-size: 19px;
}


.contact h3, .about h3 {
    line-height: 70px;
    color: #ffc043;
    margin-bottom: 30px;
}

.contact .title, .about .title {
    color: #86CDD3;
    /*font-size: 16px;*/
    font-weight: 600;
    width: 80px;
    display: inline-block;
}

.contact img, .about img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 20px;
    transition: transform 0.3s ease;
}

.about img {
    width: 95%;
}

.contact small {
    color: var(--white);
}


.primary {
    color: #06a9b7;
}

.nav_up {
    background-color: var(--black);
}

.year {
    /*width:200px;*/
    margin-right: 40px;
}



.history {
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    justify-content: flex-start;
    /*gap: 30px;*/
    width: 100%;
}

    .history p {
        flex: 1 1 50%;
        /*width:50%;*/
        /*border-radius: 20px;*/
        /*padding: 10px;*/
        display: flex;
        flex-direction: column;
        /*align-items: center;*/
        /*gap: 20px;*/
    }
.instar {
    width: 50px;
}

.instar_wrap {
    display: flex;
    /*justify-content: center;*/
    align-items: center;
    font-size: 1.3rem;
    margin-bottom: 70px;
    padding-top: 40px;
    border-top: 2px solid #282828;
    gap: 50px;
}

    .instar_wrap .item {
        display: flex;
        align-items: center;
    }

    .instar_wrap a {
        padding: 0 5px;
    }

.vod_wrap {
    margin-top: 50px;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 30px;
}

.vod_item {
    flex: 1 1 20%;
    /*border: 2px solid #787878;*/
  
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    cursor: pointer;
}



.vod_item {
    position: relative;
    padding-bottom: 56.25%;
    /*padding-top: 30px;*/
    height: 0;
    overflow: hidden;
}

.vod_item iframe,
.vod_item object,
.vod_item embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/*
.vod_item {
    flex: 1 1 20%;
    border: 2px solid #787878;
    border-radius: 20px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    cursor: pointer;
}
*/
.item_wrap {
    position: relative;
    padding-bottom: 56.25%;
    padding-top: 30px;
    height: 0;
    overflow: hidden;
}

item_wrap iframe,
item_wrap object,
item_wrap embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}



.media_items {
    margin-top: 70px;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    /*justify-content: flex-start;*/
    gap: 30px;
}

.media {
    /*border: 1px solid #F9FAFB;*/
    flex: 1 1 20%;
    max-width: 408px;
    /*margin: 0px auto;*/
    overflow: hidden;
}

    .media img {
        width: 100%;
        height: auto;
        display: block;
        transition: transform 0.3s ease;
        /*transition: all 0.3s linear;*/
    }

    .media .desc {
        padding: 30px 20px 20px;
        line-height: 24px;
        /*border:1px solid #ffc043;*/
    }

    .media:hover {
        background-color: var(--white);
        color: var(--black);
    }

        .media:hover img {
            transform: scale(1.1);
        }

    .media .title {
        font-size: 18px;
    }

    .media .sub {
        color: #86CDD3;
    }

.tab_area {
    margin-left: auto;
}

.sub_tab {
    display: flex;
    color: var(--Bblue_main, #0067FF);
    text-align: center;
    /*font-size: 12px;*/
    font-weight: 600;
}

.sub_tab a {
    display: flex;
    color: var(--yellow);
    padding: 12px 30px;
    justify-content: center;
    align-items: center;
    border: solid var(--yellow);
    border-width: 1px 1px 1px 0;
    font-weight: 400;
    /*background: var(--Bblue_pale, #F0F9FF);*/
}

    .sub_tab a.active {
        color: var(--white);
        background: var(--yellow);
        border: solid var(--yellow);
        border-width: 1px 1px 1px 0;
    }

    .sub_tab a:first-child {
        border-radius: 24px 0px 0px 24px;
        border: solid var(--yellow);
        border-width: 1px 1px 1px 1px;
    }

    .sub_tab a:last-child {
        border-radius: 0px 24px 24px 0px;
    }

.media_items.main {
    margin-top: 50px;
}


.mo_only {
    display: none;
}

.copyright {
    margin:20px 0;
    
    text-align: center;
}

.more {
    border:1px solid var(--yellow);
    margin-top:40px;
    text-align:center;
    border-radius:20px;
}

.more a {
    color: #ffc043;
    display: flex;
    justify-content: center;
    padding: 12px;
    width: 100%;
}


.ceo p {
    font-size: 22px;
}


.experience {
    font-size: 22px;
   /* border: 2px solid #787878;
    border-radius: 20px;
    padding: 20px 30px 30px 30px;*/
    line-height: 26px;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 30px;
    margin: 50px 0 100px;
}

    .experience .item {
        flex: 1 1 30%;
        border: 2px solid #787878;
        border-radius: 20px;
        padding: 20px;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }


    .experience img, .xrunner img {
        width: 50%;
        height: auto;
        display: block;
    }

.xrunner img {
    border-radius:20px;
}

.metaverse img {
    margin: 50px 0 100px;
    width: 100%;
    height: auto;
    display: block;
}


.xrunner {
    font-size: 22px;
    /* border: 2px solid #787878;
    border-radius: 20px;
    padding: 20px 30px 30px 30px;*/
    line-height: 26px;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 30px;
    margin: 50px 0;
}

.xrunner .item {
    flex: 1 1 20%;
    border: 2px solid #787878;
    border-radius: 20px;
    padding: 20px 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}


/*.xrunner img {
    width: 50%;
    height: auto;
    display: block;
}*/

.xrunner .item p {
    color:var(--yellow);
    text-align:center;
}

.xrunner .item span {
    font-size:16px;
    text-align:center;
}

header h2 {
    position: fixed;
}

header h2 {
    top: 20px;
    right: 40px;
    z-index: 101;
}

@media screen and (max-width: 1200px) {

    header {
        display:flex;
        flex-direction:column;
    }

    header h1 {
        top:30px;
        left:15px;
    }

    header h1 img {
        width:100px;
    }

    header h2 {
        top:5px;
        right:10px;
        margin: 0;
    }

    header h2 img {
        width:80px;
    }

    nav {
        padding-top:70px;
    }
    
    nav > ul li {
        font-size: 16px;
        padding: 16px 9px;
        font-weight: 700;
    }
    
    .sub_main {
        margin-top: 80px;
    }

    .section {
        padding: 2.2rem 1rem !important;
    }

    .section.ces {
        display:flex;
        flex-direction:column;
    }
    
    .section.ces h3 {
        font-size: 26px;
        text-align:center;
    }

    .section.ces h4 {
        font-size: 20px;
        text-align:center;
    }

    .section h3.title {
        font-size: 32px;
    }

    .product .item {
        gap: 15px;
        flex: 1 1 100%;
    }

    .product p, .product h4 {
        text-align: center;
    }

    .main_vod video {
        width: 100%;
    }

    .pc_only {
        display: none;
    }

    .product {
        margin-top: 30px;
    }

    .media_items.main {
        margin-top: 30px;
    }

    .mo_only {
        display: block !important;
    }

    .info p {
        line-height:26px;
    }

    .copyright {
        text-align:center;
        font-size:14px;
    }

    .instar_wrap {
        flex-direction: column;
        align-items: start;
        gap: 20px;
        font-size: 1rem;
        margin-bottom:40px;
    }

    .instar {
        width: 30px;
    }

    .info .logo {
        color:var(--yellow);
        font-size:20px;
        font-weight:700;
    }

    .ref_sub {
        align-items:center;
    }

    .media {
        flex: 1 1 100%;
    }

    .media .title {
        font-size: 16px;
    }

    .media .desc {
        padding: 6px 3px;
        line-height: 22px;
     
    }


    .contact .item .dflex, .about .item .dflex {
        flex-direction: column;
        font-size: 15px;
        line-height: 22px;
        gap:10px;
    }

    .about .item .dflex .w50p {
        flex-direction: column;
        width:100%;
    }

    .contact, .about {
         gap: 20px;         
    }

    .contact .item, .about .item {
        border: 2px solid #787878;
        border-radius: 20px;
        padding: 20px 10px;
        line-height: 20px;
    }
    .contact h3, .about h3 {
        line-height: 40px;
        margin-bottom: 5px;
        font-size:26px;
    }

    .history p {
        flex: 1 1 100%;     
    }

    .contact .item .dflex .w60p, .contact .item .dflex .w40p {
        flex-direction: column;
        width: 100%;
    }

    .reference .section .dflex {
        flex-direction:column;
    }



    .tab_area {
        margin-left: 0;
        text-align:center;
    }

    .sub_tab {
        display: flex;
        color: var(--Bblue_main, #0067FF);
        text-align: center;
        /*font-size: 12px;*/
        font-weight: 600;
    }

    .sub_tab a {
        font-size:14px;
        padding: 8px 10px;
    }

    .about .item {
        font-size: 11px;
    }


    .ceo p {
        font-size: 19px;
    }

    .experience .item, .xrunner .item {
        gap: 15px;
        flex: 1 1 100%;
    }


  /*  .experience img, .xrunner img {
        width: 50%;
        height: auto;
        display: block;
    }*/
}

@media screen and (max-width: 768px) {
    
}



@media (min-width: 751px) {
    .main_vod video {
        height: auto;
    }
}


/*
iframe .ytp-title {
 display:none !important;
}*/

.go_site {
    position: absolute;
    top: 20px;
    right: 30px;
    background-color: #86CDD3;
    padding: 6px 10px;
    border-radius: 6px;
    color: var(--black);
    opacity: .8;
    font-weight:500;
}