html {font-size: 16px;}
/* 애니메이션 */
.fade_up {opacity: 0; transform: translateY(20px);  }
.fade_up.show {animation: fadeUp 0.5s ease-out forwards;}
@keyframes fadeUp {
    to {opacity: 1;transform: translateY(0);}
}

.slide_down {  opacity: 0; transform: translateY(-140px);}
.slide_down.show { animation: slideDown 0.5s ease-out forwards;}
@keyframes slideDown {
    to {opacity: 1;transform: translateY(0);}
}

.fade_in {opacity: 0;}
.fade_in.show {animation: fadeIn 1s ease-out forwards;}
@keyframes fadeIn {
    to {opacity: 1;}
}

.pop_in { opacity: 0;transform: scale(0.5);}
.pop_in.show {animation: popIn 0.6s ease-out forwards;}
@keyframes popIn {
80% {opacity: 1;transform: scale(1.05);}
100% {opacity: 1; transform: scale(1);}
}

.inner { max-width: 1680px; margin: 0 auto; padding: 0 40px;}
.m_title h2 { color: #fff;  font-size: 3.7rem;}

/* 헤더 */
#header_mo {display: none;}
#header {position: fixed;top: -90px;left: 0;width: 100%;  padding: 40px 0 0 0;z-index: 21; display: block;animation: slideDown2 1s ease-out forwards;}
@keyframes slideDown2 { 0% {top: -90px;} 100% {top: 0;}}

#header .inner { justify-content: space-between; position: relative; }
#header .logo a{ color: #fff; font-size: 28px; font-family: pre_SB;}
#header .btn { display: flex; align-items: center; gap: 8px; }
#header .btn a { color: #fff; padding: 10px 25px; border-radius: 60px; }
#header .btn a:nth-of-type(1) { background: #0649FF; background: linear-gradient(90deg, rgba(6, 73, 255, 1) 0%, rgba(110, 13, 255, 1) 100%); }
#header .btn a:nth-of-type(2) { background: #06C1B5; background: linear-gradient(90deg, rgba(6, 193, 181, 1) 0%, rgba(0, 156, 103, 1) 100%); }
#header .btn a img { width: 9px; margin: 0 0 0 20px; }
#header .menu {position: absolute;top: 11px;left: 50%;transform: translateX(-50%);display: flex;align-items: center;gap: 2.4vw;}
#header .menu li a {  color: #fff; position: relative; perspective: 600px; overflow: hidden;}
#header .menu li a .text { display: block; transform-origin: bottom; transition: transform 0.5s ease, opacity 0.5s ease; font-size: 16px;}
#header .menu li a img { margin: 0 0 0 15px; }
#header .menu li a::after { content: attr(data-text); position: absolute; top: 100%; left: 0; width: 100%;  transform-origin: top; transform: rotateX(-90deg); opacity: 0; transition: transform 0.5s ease, opacity 0.5s ease; color: #fff; }
#header .menu li a:hover .text { transform: rotateX(90deg); opacity: 0;}
#header .menu li a:hover::after { transform: rotateX(0deg) translateY(-100%);  opacity: 1;}
#header .menu li {position: relative;}
#header .menu li .sub { position: absolute; top: 67px; text-align: center; background: #ffffff2e; padding: 10px 30px;  border-radius: 19px; width: 100%; border: 1px solid #ffffff6e; display: none;}
#header .menu li .sub li a { font-size: 14px; margin: 10px 0;  display: block;}


/* 헤더-on */
#header.on {
    padding: 20px 0;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(13px);
    -webkit-backdrop-filter: blur(13px);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.5),
        inset 0 -1px 0 rgba(255, 255, 255, 0.1),
        inset 0 0 0px 0px rgba(255, 255, 255, 0);
}

#header.on::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.8),
        transparent
    );
}

#header.on::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(255, 255, 255, 0.8),
        transparent,
        rgba(255, 255, 255, 0.3)
    );
}


/* 서브페이지 헤더 */
#header.black .menu li a {color: #333;}
#header.black .logo a {color: #333;}
#header.black .menu li a::after {color: #333;}
#header.black .menu li .sub {background-color: #fff;  box-shadow: rgba(149, 157, 165, 0.2) 0px 8px 24px;}

.mo_menu {display: none;}

#intro {position: fixed; top: 0; left: 0; width: 100%; height:100vh; z-index: 22; background-color: #000}
#intro.fade-out { opacity: 0; pointer-events: none;}
#intro > div {display: flex; width: 100%; height: 100%; align-items: center; justify-content: center;}
#intro  p {
    position: relative;
    text-transform: uppercase;
    font-size: 2em;
    letter-spacing: 4px;
    overflow: hidden;
    background: linear-gradient(90deg, #000, #fff, #000);
    background-repeat: no-repeat;
    background-size: 80%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: rgba(255, 255, 255, 0);
    opacity: 0;
    animation:
    fadeIn 0.6s ease-in 0.5s forwards,
    animate 3s 0.5s linear forwards;
}

@keyframes animate {  0% { background-position: -1000%; }  100% { background-position: 500%; }}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; }}

#footer {position: fixed; bottom: 0; left: 0; width: 100%; z-index: -2; background-color: #111111; padding: 140px 0 80px 0; color: #fff;}
#footer .wrap {display: flex; align-items: flex-start; justify-content: space-between;}
#footer .left .top {margin: 0 0 100px 0;}
#footer .left .top .logo {font-size: 2.3rem;}
#footer .left .top p {font-family: 'pre_L'; margin: 20px 0 0 0; font-size: 1.2rem;}
#footer .left .sns .wrap {justify-content: flex-start; gap: 7px; margin: 0 0 20px 0;}
#footer .left .sns .copyright {font-size: 0.8rem; font-family: 'pre_L'; color: #9f9f9f;}
#footer .right .info {margin: 0 0 50px 0;}
#footer .right .box .title {font-family: 'pre_SB'; font-size: 1.5rem; margin: 0 0 20px 0;}
#footer .right .box p {font-size: 1.05rem; font-family: 'pre_T';}
#footer .right .box p span {margin: 0 10px 0 0;}
#footer .inqu {margin: 70px 0 0 0; width: 100%; display: flex; align-items: center; justify-content: space-between; height: 90px; border-radius: 20px; background: linear-gradient(90deg, #0058dc, #00FDD3); padding: 0 50px; color: #fff;}
#footer .inqu .text {display: flex; align-items: center;}
#footer .inqu .logo {font-size: 1.5rem; margin: 0 30px 0 0;}
#footer .inqu p {font-family: 'pre_L'; font-size: 1.1rem;}
#footer .inqu span {display: inline-block; background: #111; padding: 10px 20px; border-radius: 60px; font-size: 1.2rem;}


#top_btn {position: fixed; z-index: 4; bottom: 50px; right: 50px; display: block; width: 80px; height: 80px; cursor: pointer; box-shadow: 1px 1px 28px #000; border-radius: 100%}
#top_btn img {width: 100%;}


#main_visual {opacity: 0; animation: fade_in2 1s 0.5s ease-out forwards; width: 100%; position: relative;}
@keyframes fade_in2 { 0% {opacity: 0;} 100% {opacity: 1;}}
#main_visual .back {position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-color: #000; opacity: 0.4; z-index: 2;}
#main_visual video { position: absolute; top: 0; left: 0; display: block; z-index: 1; width: 100%; height: 94vh; object-fit: cover; pointer-events: none; }
#main_visual .inner { position: relative; height: 100%; }

#main_visual .text {width: max-content; position: absolute;top: 50%;left: 50%;transform: translate(-50%, -50%);text-align: center; z-index: 3;}
#main_visual .text h2 {
    background: linear-gradient(90deg, #00FDD3, #0676FF); -webkit-background-clip: text; -webkit-text-fill-color: transparent;font-size: 3.5rem;font-family: pre_B;line-height: 1.1; animation: fadeUp3 0.5s ease-out forwards;
    opacity: 0; transform: translateY(20px); 
}
#main_visual .text h3 {color: #c7c7c7;font-size: 1.7rem;font-family: pre_L;margin: 30px 0 0 0; animation: fadeUp3 0.5s ease-out forwards; opacity: 0; transform: translateY(20px); }
@keyframes fadeUp3 {
    to {opacity: 1;transform: translateY(0);}
}


#main_visual .text2 {top: 50%; left: 40px; transform: translateY(-50%); text-align: left;}

#main_visual .scroll {position: absolute;bottom: 0;left: 50%;transform: translateX(-50%);z-index: 2;display: flex;align-items: center;justify-content: center;flex-direction: column;}
#main_visual .scroll p { color: #fff;  margin: 0 0 20px 0;  font-family: pre_L; text-shadow: 1px 1px 10px #000;}
#main_visual .scroll .bar-wrap {position: relative;width: 4px;height: 60px;background: transparent;overflow: hidden;}
#main_visual .scroll .bar-bg {position: absolute;width: 100%;height: 100%;background: #ffffff6b;}
#main_visual .scroll .bar-fg { position: absolute; width: 100%; height: 50%; background: #fff; animation: slideDown 2s cubic-bezier(0.8, 0, 1, 1) infinite;}
@keyframes slideDown { 0% { top: -50%; } 80% { top: 100%; } 100% { top: 100%; }}


#telecom { width: 100%; position: relative;  padding:100px 0 410px 0; background: linear-gradient(180deg,rgba(0, 2, 1, 1) 0%, rgba(0, 15, 32, 1) 51%, rgba(0, 29, 65, 1) 100%); margin: -1px 0 0 0;}
#telecom .text {color: #fff;}
#telecom .text span {padding: 14px 29px;border-radius: 60px;font-size: 2rem;background: linear-gradient(90deg, #00FDD3, #0676FF);-webkit-background-clip: text;-webkit-text-fill-color: transparent;display: block;width: max-content;position: relative;z-index: 0;margin: 0 0 30px 0;}
#telecom .text span::before { content: ""; position: absolute; inset: 0; padding: 2px; background: linear-gradient(90deg, #00FDD3, #0676FF); -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); -webkit-mask-composite: xor; mask-composite: exclude; z-index: -1; border-radius: 60px; }
#telecom .text .title {font-size: 2.5rem;margin: 0 0 20px 0;font-family: 'pre_SB';}
#telecom .text p {font-size: 1.6rem;font-family: 'pre_L'; text-shadow: 1px 1px 0px #000;}
#telecom .top_text {  margin: 0 0 220px 0;}
#telecom .top_text .m_title {  margin: 0 0 150px 0;}
#telecom .top_text .text_1 {   display: flex;  justify-content: space-between;  margin: 0 0 90px 0;}
#telecom .top_text .image {width: 100%; height: 300px; background:url(../images/top_back.png) center center; background-attachment: fixed; border-radius: 30px; background-size: cover;}

#telecom .text_2 span {margin: 0 auto 30px;}
#telecom #textbox {position: sticky;width: 100%;top: 37%;left: 50%;text-align: center;}
#telecom #imgbox { height: auto; }
#telecom #imgbox img {width: 90%; margin: 0 auto; display: block;}

#telecom #imgbox .tab {display: none;}
#telecom #imgbox .mo {display: none;}


#circle {background:url(../images/circle_back.png); background-size: cover; display: block;}
#circle .inner{ padding: 120px 40px 260px 40px;}
#circle .wrap {justify-content: space-between; align-items: flex-end;}
#circle .text {color: #fff;}
#circle .text span {padding: 14px 29px;border-radius: 60px;font-size: 2rem;background: linear-gradient(90deg, #00FDD3, #0676FF);-webkit-background-clip: text;-webkit-text-fill-color: transparent;display: block;width: max-content;position: relative;z-index: 0;margin: 0 0 30px 0;}
#circle .text span::before { content: ""; position: absolute; inset: 0; padding: 2px; background: linear-gradient(90deg, #00FDD3, #0676FF); -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0); -webkit-mask-composite: xor; mask-composite: exclude; z-index: -1; border-radius: 60px; }
#circle .text .title {font-size: 2.5rem;margin: 0 0 20px 0;font-family: 'pre_SB';}
#circle .text p {font-size: 1.6rem;font-family: 'pre_T';opacity: 0.9;}
#circle .image {position: relative;height: 28rem;}
#circle .image img {width: 36rem;  position: absolute;  top: 0; right: 0; }
#circle .image .img1 {  opacity: 0.5; animation: spin2 30s linear infinite;transform-origin: center center; }
#circle .image .img3 { opacity: 0.8; animation: spin 15s linear infinite;transform-origin: center center; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); }}
@keyframes spin2 { 0% { transform: rotate(0deg); } 100% { transform: rotate(-360deg); }}



#challenge {  padding: 100px 0;  background: #232323; position: relative; }
#challenge .inner {  display: flex;  justify-content: space-between;  color: #fff;  align-items: center;}
#challenge .inner .left { font-size: 3.5rem;  line-height: normal; }
#challenge .inner .right {  font-size: 1.6rem;  font-family: 'pre_L';}
#challenge br {display:none}


#area { background: #0649FF; padding: 100px 0; }
#area .m_title { margin: 0 0 90px 0; }
#area .wrap { display: flex; align-items: center; justify-content: right; }
#area .box { display: flex; align-items: center; justify-content: center; flex-direction: column;  width: 22rem; height: 22rem; }
#area .box_1 { background: url(../images/area_1.svg); background-size: cover; }
#area .box_2 { background: url(../images/area_2.svg); background-size: cover; }
#area .box_3 { background: url(../images/area_3.svg); background-size: cover; }
#area .box .title { font-size: 1.5rem; margin: 0 0 13px 0; font-family: pre_SB; }
#area .box p { color: #fff; font-family: pre_L; }
#area .wrap .move_1 {transform: translateX(66rem); opacity: 0; position: relative; z-index: 2;}
#area .wrap .move_2 {transform: translateX(44rem); opacity: 0;}
#area .wrap .move_3 {transform: translateX(22rem); opacity: 0;}
#area .wrap .move_4 {opacity: 0;}
#area .wrap.show .move_1 {animation: move_left1 0.8s 0.8s ease-out forwards;}
#area .wrap.show .move_2 {animation: move_left2 0.8s 0.6s ease-out forwards;}
#area .wrap.show .move_3 {animation: move_left3 0.5s 0.4s ease-out forwards;}
#area .wrap.show .move_4 {opacity: 1; transition: 0.3s 0.2s}
@keyframes move_left1 { 100% { transform: translateX(105px); opacity: 1;}}
@keyframes move_left2 { 100% { transform: translateX(70px); opacity: 1;}}
@keyframes move_left3 { 100% { transform: translateX(35px); opacity: 1;}}


#figure {padding: 130px 0; background: linear-gradient(180deg, rgba(1, 9, 17, 1) 0%, rgba(0, 20, 78, 1) 100%); }
#figure .m_title {   margin: 0 0 50px 0;}
#figure .stats .top {  display: flex;  gap: 20px;  margin: 0 0 30px 0;}
#figure .stats .bottom {  display: flex;  justify-content: right;}
#figure .stat-box {background: #ffffff1f;border-radius: 16px;padding: 33px 40px;}
#figure .stat-box .label {font-size: 1.4rem;color: #ffffff;margin-bottom: 26px;font-family: 'pre_SB';}
#figure .stat-box .sub-label { font-size: 14px; color: #555; }
#figure .stat-box span {font-size: 2rem;color: #fff;margin-left: 4px;}
#figure .stat-box .number {display: flex; align-items: center}
#figure .stat-box .counter {font-size: 4.5rem;color: #ffffff;margin: 0 0 0 200px;display: block;font-family: 'one_title';}
#figure .stat-box:nth-of-type(1) .counter {width: 96px;}
#figure .stat-box:nth-of-type(2) .counter {width: 240px;}
#figure .bottom .stat-box:nth-of-type(1) .counter {width: 430px;}


#history { padding: 140px 0; background: linear-gradient(180deg, rgba(1, 9, 17, 1) 60%, rgba(0, 20, 78, 1) 100%); position: relative; z-index: -1;}
#history .m_title { text-align: center; }
#history .m_title p { margin: 50px 0 80px 0; font-size: 1.7rem; color: #fff; font-family: 'pre_L'; }
#history .wrap { position: relative; width: 1000px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; }
#history .box {color: #fff;position: relative;margin: 0 0 39px 0; width: 50%;}
#history .box.right {transform: translateX(62.5%);}
#history .box.left {transform: translateX(-63.1%);text-align: right; }
#history .box .ball { position: absolute; width: 23px; height: 24px; background: #4b4b4b; border-radius: 100%; top: 13px; }
#history .box.left .ball { right: -77px; }
#history .box.right .ball { left: -74px; }
#history .box.left .text span {padding: 0 10px 0 0}
#history .box.right .text span { padding: 0 10px 0 0}
#history .box .year { color: #777; font-size: 1.7rem; }
#history .box .text { color: #777; font-size: 1.4rem; font-family:'pre_L'}
#history .box .image {  width: 10vw;  position: absolute;  top: 0;  right: -23%;}
#history .box.right .image { right: -23%;}
#history .box.left .image { left: -23%;}
#history .box .image img{  width: 100%;}

#history .box.active .ball {background-color: #00FDD3;}
#history .box.active .year {color: #00FDD3;}
#history .box.active .text {color: #fff;}

#history .line { position: absolute; top: 18px; left: 50%; transform: translateX(-50%); width: 2px; height: calc(100% - 99px); z-index: -1; overflow: hidden;}
#history .line .timeline-line-bg {width: 100%; height: 100%; background-color: #4b4b4b;position: absolute; top: 0; left: 0; z-index: 1}
#history .line .timeline-line-progress {width: 100%; position: absolute; top: 0; left: 0; z-index: 2; height: 200px; height: 0; background-color: #00FDD3; transition: 0.2s;}



#struc { padding: 140px 0; background-color: #000;}
#struc .m_title { text-align: center;  margin: 0 0 90px 0;}
#struc img{ width:80%; margin: 0 auto;  display: block;}
#struc img.mo {display: none;}

#location {   background: #232323;  padding: 150px 0;}
#location .inner {display: flex;justify-content: space-between;align-items: center;max-width: max-content;}
#location .map_wrap {width: 49vw;border-radius: 20px;overflow: hidden;}
#location .map_wrap * {transition: none;}
#location .root_daum_roughmap {width: 100% !important;height: 470px;}
#location .cont {display: none;}
#location .root_daum_roughmap .wrap_map {
    height: 100% !important;
}

#location .inner > .text { width: 50%; padding: 0 0 0 4vw; color: #fff; }
#location .text .top { margin: 0 0 80px 0; }
#location .text .top .title { font-size: 3rem; margin: 0 0 20px 0; }
#location .text .top .address { font-size: 1.3rem; font-family: pre_L; }
#location .text .bottom { display: flex; gap: 3vw; }
#location .text .bottom .box .title { color: #5A86FF; font-size: 1.4rem; font-family: pre_SB; margin: 0 0 20px 0; }
#location .text .bottom .box .text { font-size: 1.2rem; font-family: pre_T;  color: #fff !important}
#location .text .bottom .box .text a {color: #fff !important;}
#location .text .bottom .box .text span { margin: 0 10px 0 0; }
#location  .root_daum_roughmap .wrap_btn_zoom {z-index: 5 !important;}


.sub_head {width: 100%;height: 90vh; position: relative;}
.sub_head .white {position: absolute; top: 0; right: 0; width: 100%; height: 100%; z-index: 2; background-color: #fff; animation:rightmove 0.5s 0.2s ease-out forwards}
@keyframes rightmove {  0% {right: 0}  100% {right: -100%;}}
.sub_head .inner {  position: relative;  height: 100%; max-width: 1400px;}
.sub_head .text { position: absolute; top: 50%; left: 40px; color: #fff; transform: translateY(-50%); }
.sub_head .text h3 { font-size: 5.3rem; margin: 0 0 40px 0; }
.sub_head .text p { font-size: 1.5rem; margin: 0 0 60px 0; }
.sub_head .text .load { display: flex; align-items: center; }
.sub_head .text .load img:nth-of-type(1) { width: 20px; }
.sub_head .text .load img:nth-of-type(2) { width: 9px; margin: 0 20px; }
.sub_head .text .load p { margin: 0; font-size: 1.1rem; line-height: normal; }


.sub_title { padding: 130px 0;  display: flex;  justify-content: space-between;  border-bottom: 2px solid #333;}
.sub_title .left p { font-size: 3rem; font-family: 'pre_SB';}
.sub_title .right { margin: 121px 0 0 0;}
.sub_title .right p { font-size: 1.9rem; color: #333;}

.subwrap {background-color: #fff;padding: 0 0 100px 0;margin: 0 0 693px 0;}

#custom-cursor {
    position: fixed; top: 0; left: 0; width: 100px; height: 100px;
    background: url('../images/mouse_view.cur') no-repeat center center;
    background-size: contain; pointer-events: none; z-index: 9999; transition: none; display: none;
}


#solution .content .box {padding: 80px 20px;display: flex;align-items: flex-start;position: relative;border-bottom: 1px solid #afafaf;}
#solution .content .box .left {display: flex;width: 500px;align-items: center;transform: translateY(-12px);}
#solution .content .box .left .image img {display: block;width: 70px;}
#solution .content .box .left p {font-size:2rem;margin: 0 0 0 20px;}
#solution .content .box .right .bold { font-family: 'pre_SB'; margin: 0 0 40px 0; }
#solution .content .box .right p {font-size: 1.3rem;font-family: 'pre_L';}
#solution .content .box .go {position: absolute;bottom: 80px;right: 20px;width: 60px;height: 60px; overflow: hidden;}
#solution .content .box .go img {display:block;width:100%;position: absolute;top: 0;left: 0; transition: none;}
#solution .content .box .go img:nth-of-type(1) {left: -200%;}
#solution .content .box {cursor: none;}
#solution .content .box:hover .go img {left: 200%; transition: 0.5s;}
#solution .content .box:hover .go img:nth-of-type(1) {left: 0; transition: 0.5s;}



#security .box { padding: 70px 5vw; border-bottom: 1px solid #afafaf; display: flex; justify-content: space-between; }
#security .box .left { width: 24vw; }
#security .box .left p { font-size: 2rem; }
#security .box .right { font-size: 1.2rem; max-width: calc(100vw - 24vw); min-width: 40vw; }
#security .box .right p { font-family: 'pre_L'; margin: 0 0 16px 0; }



#media .content {padding: 50px 0 0 0;display: grid;grid-template-columns: 1fr 1fr 1fr;gap: 80px 3vw; cursor: none;}
#media .content .box {display: block;  cursor: none;}
#media .content .box:hover  {transform: translateY(-10px)}
#media .content .image {margin: 0 0 20px 0;border: 1px solid #ddd;border-radius: 30px;overflow: hidden;}
#media .content .image img {display: block;width: 100%;}
#media .content .title {font-size: 1.4rem;margin: 0 0 30px 0; word-break: keep-all;}
#media .content .date {color: #777;}


#client .wrap {padding: 50px 0;}
#client .wrap h3 {font-size: 3rem;margin: 0 0 50px 0;}
#client .box_wrap { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr 1fr; gap: 30px 1.4vw;}
#client .box_wrap .box {border: 1px solid #d2d2d2;border-radius: 20px;overflow: hidden;height: 200px;}
#client .box_wrap .box .image {padding: 20px 20px 10px 20px;text-align: center;height: 50%;display: flex;align-items: center;justify-content: center;}
#client .box_wrap .box .image img {width: 134px;}
#client .box_wrap .box .text {background: #fafafa;text-align: center;padding: 20px;height: 50%;display: flex;align-items: center;justify-content: center;}
#client .box_wrap .box .text p {font-family: pre_L;}