/* T4L — style-8 (clean corporate) */
:root{
  --black:#111;
  --text:#222;
  --gray:#666;
  --gray-2:#999;
  --line:#e5e5e5;
  --bg-gray:#f6f5f3;
  --point:#0a7a2f;
  --point-2:#0a7a2f;
  --header-h:80px;
  --panel-h:270px;
  --inner:1120px;
  --font:"Pretendard","Apple SD Gothic Neo","Malgun Gothic",sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-padding-top:var(--header-h)}
body{
  font-family:var(--font);color:var(--text);background:#fff;
  font-size:16px;line-height:1.7;letter-spacing:-.01em;
  word-break:keep-all;overflow-wrap:break-word;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.inner{width:100%;max-width:calc(var(--inner) + 48px);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:16px;top:-60px;z-index:100;padding:10px 16px;background:var(--point);color:#fff}
.skip:focus{top:12px}

/* ---------- Header ---------- */
.header{
  position:sticky;top:0;z-index:50;height:var(--header-h);
  border-bottom:1px solid transparent;transition:border-color .2s;
}
/* 현대차 홈페이지와 같은 반투명 흰색(90%) + 뒤 내용 흐림(5px).
   흐림은 가상 요소에 걸어야 모바일 전체 메뉴(position:fixed)가 헤더 안에 갇히지 않는다. */
.header::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:rgba(255,255,255,.9);-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);
  transition:background .2s;
}
.header.is-scrolled,.header.is-open{border-bottom-color:var(--line)}
.header.is-open::before{background:#fff}
.header-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:100%}
.logo{justify-self:start}
.logo img{height:38px;width:auto}
.gnb,.gnb > ul{height:100%}
.gnb > ul{display:flex}
.gnb > ul > li{position:relative;width:180px;height:100%;text-align:center}
.gnb-top{
  display:flex;align-items:center;justify-content:center;height:100%;
  font-size:18px;font-weight:600;color:var(--black);position:relative;transition:color .2s;
}
.gnb-top::after{
  content:"";position:absolute;left:24px;right:24px;bottom:0;height:3px;
  background:var(--point);transform:scaleX(0);transition:transform .25s;
}
.gnb > ul > li:hover .gnb-top,.gnb > ul > li.is-current .gnb-top{color:var(--point)}
.gnb > ul > li:hover .gnb-top::after,.gnb > ul > li.is-current .gnb-top::after{transform:scaleX(1)}
.depth2{
  position:absolute;top:100%;left:0;right:0;height:var(--panel-h);padding-top:26px;
  border-left:1px solid var(--line);
  opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s;
}
.gnb > ul > li:last-child .depth2{border-right:1px solid var(--line)}
.depth2 a{display:block;padding:8px 10px;font-size:16px;color:var(--text);transition:color .2s}
.depth2 a:hover,.depth2 a:focus-visible{color:var(--point);text-decoration:underline;text-underline-offset:4px}
.gnb-panel{
  position:absolute;top:100%;left:0;right:0;height:var(--panel-h);
  background:#fff;border-bottom:1px solid var(--line);
  opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s;z-index:-1;
}
.header.is-open .depth2,.header.is-open .gnb-panel{opacity:1;visibility:visible}

.menu-btn{display:none;width:40px;height:40px;position:relative;justify-self:end}
.menu-btn span{position:absolute;left:9px;right:9px;height:2px;background:var(--black);transition:transform .25s,top .25s}
.menu-btn span:first-child{top:15px}
.menu-btn span:last-child{top:23px}
.menu-btn[aria-expanded="true"] span:first-child{top:19px;transform:rotate(45deg)}
.menu-btn[aria-expanded="true"] span:last-child{top:19px;transform:rotate(-45deg)}

/* ---------- Visual (slider) ---------- */
.visual{padding:56px 0 0}
.slides{position:relative}
.slide{
  display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:center;
  position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .6s,visibility .6s;
}
.slide.is-active{position:relative;opacity:1;visibility:visible}
.slide-text h1,.slide-text h2{
  font-size:52px;font-weight:700;line-height:1.28;letter-spacing:-.03em;color:var(--black);
}
.slide-text p{margin-top:24px;font-size:18px;color:var(--gray);line-height:1.75}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:160px;height:52px;padding:0 28px;margin-top:40px;
  background:var(--point);color:#fff;font-size:16px;font-weight:500;transition:background .2s;
}
.btn:hover{background:#08652a}
.slide-img{aspect-ratio:3/2;overflow:hidden;background:var(--bg-gray)}
.slide-img img{width:100%;height:100%;object-fit:cover}

.slide-ctrl{display:flex;align-items:center;justify-content:space-between;margin-top:36px}
.arrow{display:flex;align-items:center;gap:14px;font-size:15px;color:var(--gray);min-width:200px;transition:color .2s}
.arrow.next{justify-content:flex-end}
.arrow:hover{color:var(--black)}
.arrow-ico{width:22px;height:22px;border-left:1.5px solid currentColor;border-bottom:1.5px solid currentColor}
.prev .arrow-ico{transform:rotate(45deg) translate(3px,-3px)}
.next .arrow-ico{transform:rotate(-135deg) translate(3px,-3px)}
.dots{display:flex;align-items:center;gap:10px}
.dot{width:8px;height:8px;border-radius:50%;background:#d6d6d6;transition:background .2s}
.dot.is-active{background:var(--black)}
.pause{width:22px;height:22px;border-radius:50%;background:var(--black);position:relative;margin-left:6px}
.pause::before,.pause::after{content:"";position:absolute;top:7px;width:2px;height:8px;background:#fff}
.pause::before{left:8px}
.pause::after{left:12px}
.pause.is-paused::before{left:9px;top:7px;width:0;height:0;background:none;border-left:6px solid #fff;border-top:4px solid transparent;border-bottom:4px solid transparent}
.pause.is-paused::after{display:none}

/* ---------- Quick menu ---------- */
.quick{
  display:grid;grid-template-columns:repeat(5,1fr);
  margin-top:64px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.quick a{
  display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:32px 8px;font-size:15px;color:var(--black);text-align:center;transition:color .2s;
}
.quick a + a{border-left:1px solid var(--line)}
.quick a:hover{color:var(--point)}
svg{fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.quick svg{width:40px;height:40px}

/* ---------- Sub top ---------- */
.sub-visual{
  position:relative;height:300px;display:flex;align-items:center;
  background-size:cover;background-position:center;color:#fff;text-align:center;
}
.sub-visual::before{content:"";position:absolute;inset:0;background:rgba(10,14,22,.55)}
.sub-visual .inner{position:relative}
.sub-visual h1{font-size:44px;font-weight:700;letter-spacing:-.03em;line-height:1.3}
.sub-visual p{margin-top:12px;font-size:17px;color:rgba(255,255,255,.85)}

.loc{border-bottom:1px solid var(--line);background:#fff;position:relative;z-index:20}
.loc-inner{display:flex;height:58px}
.loc-home{display:flex;align-items:center;justify-content:center;width:58px;border-left:1px solid var(--line);border-right:1px solid var(--line);color:var(--black)}
.loc-home svg{width:20px;height:20px;stroke-width:1.6}
.loc-item{position:relative;width:220px;border-right:1px solid var(--line)}
.loc-btn{display:flex;align-items:center;justify-content:space-between;width:100%;height:100%;padding:0 22px;font-size:15px;color:var(--text)}
.loc-btn svg{width:12px;height:8px;stroke-width:1.5;transition:transform .2s}
.loc-item.is-open .loc-btn svg{transform:rotate(180deg)}
.loc-list{
  position:absolute;top:100%;left:-1px;right:-1px;background:#fff;
  border:1px solid var(--line);border-top:0;padding:8px 0;display:none;
}
.loc-item.is-open .loc-list{display:block}
.loc-list a{display:block;padding:9px 22px;font-size:15px;color:var(--gray);transition:color .2s,background .2s}
.loc-list a:hover{color:var(--black);background:var(--bg-gray)}
.loc-list .is-current a{color:var(--point);font-weight:600}

/* ---------- Section ---------- */
.section{padding:140px 0}
.sub .section{padding:120px 0}
.sub .section-sm{padding:88px 0}
.section-gray{background:var(--bg-gray)}
.sec-head{text-align:center;margin-bottom:72px}
.sec-head h2{font-size:42px;font-weight:700;letter-spacing:-.03em;color:var(--black);line-height:1.3}
.sec-head p{margin-top:16px;font-size:16px;color:var(--gray)}
.sub-title{font-size:26px;font-weight:700;color:var(--black);letter-spacing:-.03em;margin-bottom:32px}

/* ---------- About ---------- */
.about{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.about-img{aspect-ratio:3/2;overflow:hidden}
.about-img img{width:100%;height:100%;object-fit:cover}
.about--text{grid-template-columns:5fr 7fr;align-items:start}
.about--text .about-text{display:contents}
.about--text .about-text > p{margin-top:0;font-size:17px;line-height:1.9;color:var(--text)}
.about-text h3{font-size:30px;font-weight:700;color:var(--black);letter-spacing:-.03em;line-height:1.4}
.about-text > p{margin-top:20px;color:var(--gray)}

.lead{text-align:center;font-size:26px;font-weight:500;line-height:1.65;color:var(--black);letter-spacing:-.03em}
.ov-facts{display:grid;grid-template-columns:repeat(4,1fr);margin-top:72px;border:1px solid var(--line)}
.ov-facts li{display:flex;flex-direction:column;align-items:center;padding:48px 20px;text-align:center}
.ov-facts li + li{border-left:1px solid var(--line)}
.ov-facts svg{width:48px;height:48px;color:var(--point)}
.ov-facts strong{margin-top:20px;font-size:18px;font-weight:600;color:var(--black)}
.ov-facts strong::after{content:"";display:block;width:20px;height:1px;margin:12px auto 0;background:var(--black)}
.ov-facts span{margin-top:12px;font-size:16px;color:var(--gray);line-height:1.6}

.values{display:grid;grid-template-columns:repeat(3,1fr);background:var(--bg-gray)}
.values li{padding:48px 40px}
.values li + li{border-left:1px solid #e3e1dd}
.values strong{display:block;font-size:22px;font-weight:700;color:var(--black)}
.values p{margin-top:10px;color:var(--gray);font-size:15px}

/* ---------- Services ---------- */
.feature{display:grid;grid-template-columns:7fr 5fr;gap:64px;align-items:center}
.feature-img{background:var(--bg-gray);padding:28px;aspect-ratio:4/3;display:flex;align-items:center}
.feature-img img{width:100%;height:100%;object-fit:contain}
.feature-img--text{padding:0 56px}
.feature-img--text span{font-size:56px;font-weight:700;color:var(--black);letter-spacing:-.02em}
.label{display:inline-block;font-size:14px;font-weight:600;color:var(--point-2)}
.feature-text h2{margin-top:8px;font-size:32px;font-weight:700;color:var(--black);letter-spacing:-.03em;line-height:1.4}
.feature-text > p{margin-top:16px;color:var(--gray)}
.points{margin-top:28px;border-top:1px solid var(--line)}
.points li{padding:14px 0 14px 22px;border-bottom:1px solid var(--line);position:relative;font-size:15px;color:var(--text)}
.points li::before{content:"";position:absolute;left:2px;top:23px;width:8px;height:2px;background:var(--black)}

.cards{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.card{display:block}
.card-img{aspect-ratio:3/2;background:var(--bg-gray);padding:12px;overflow:hidden;display:flex;align-items:center;justify-content:center;transition:box-shadow .2s}
.section-gray .card-img{background:#fff}
.card-img img{width:100%;height:100%;object-fit:contain;transition:transform .4s,opacity .2s}
.card:hover .card-img img{transform:scale(1.03)}
.card-img--text{justify-content:flex-start;padding:0 20px}
.card-img--text span{font-size:20px;font-weight:700;color:var(--black);letter-spacing:-.02em;transition:opacity .2s}
.card-name{display:block;margin-top:16px;font-size:17px;font-weight:600;color:var(--black);letter-spacing:-.02em;transition:color .2s}
.card-desc{display:block;margin-top:6px;font-size:14px;color:var(--gray);line-height:1.6}
.card:hover .card-name{color:var(--point)}
/* 서비스 상세 아래 목록: 현재 서비스 표시 */
.cards--nav .card-img > *{opacity:.55}
.cards--nav .card:hover .card-img > *{opacity:.9}
.cards--nav .card-name{font-size:16px;font-weight:500;color:var(--gray)}
.cards--nav .card.is-active .card-img{box-shadow:inset 0 0 0 2px var(--point)}
.cards--nav .card.is-active .card-img > *{opacity:1}
.cards--nav .card.is-active .card-name{color:var(--point);font-weight:700}

/* ---------- Tech ---------- */
.tech{display:grid;grid-template-columns:repeat(4,1fr);border-top:2px solid var(--black)}
.tech li{padding:36px 32px 40px;border-bottom:1px solid var(--line)}
.tech li:not(:nth-child(4n+1)){border-left:1px solid var(--line)}
.tech h3{font-size:19px;font-weight:700;color:var(--black);letter-spacing:-.02em}
.tech p{margin-top:8px;font-size:15px;color:var(--gray);line-height:1.65}

/* ---------- History ---------- */
.history{max-width:880px;margin:0 auto;border-top:2px solid var(--black)}
.history > div{display:grid;grid-template-columns:200px 1fr;padding:40px 0;border-bottom:1px solid var(--line)}
.history dt{font-size:34px;font-weight:700;color:var(--black);line-height:1.2;letter-spacing:-.02em}
.history li{font-size:17px;color:var(--text);line-height:1.6}
.history li + li{margin-top:10px}

/* ---------- Location ---------- */
.location{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:stretch}
.map{min-height:420px;background:#e9e7e3}
.map iframe{width:100%;height:100%;min-height:420px;border:0;display:block}
.contact{border-top:2px solid var(--black);align-self:start}
.contact div{display:grid;grid-template-columns:90px 1fr;padding:22px 0;border-bottom:1px solid var(--line)}
.contact dt{font-size:15px;color:var(--gray)}
.contact dd{font-size:17px;font-weight:500;color:var(--black)}
.contact a:hover{color:var(--point)}

/* ---------- Footer ---------- */
.footer{background:#1c1b1b;color:#999;padding:56px 0 64px}
.footer-inner{display:flex;gap:64px;align-items:flex-start}
.footer-logo{height:36px;width:auto;flex:none}
.footer-info p{font-size:14px;line-height:2}
.footer-info i{display:inline-block;width:1px;height:11px;background:#555;margin:0 12px;vertical-align:-1px}
.footer-info .copy{margin-top:12px;font-size:13px;color:#777}

/* ---------- Reveal ---------- */
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.is-in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .gnb > ul > li{width:150px}
}
@media (max-width:1024px){
  :root{--header-h:64px}
  .header-inner{grid-template-columns:1fr auto}
  .logo img{height:32px}
  .menu-btn{display:block}
  .gnb-panel{display:none}
  .gnb{
    position:fixed;top:var(--header-h);left:0;right:0;bottom:0;height:auto;
    background:#fff;padding:8px 24px 40px;overflow-y:auto;
    transform:translateX(100%);transition:transform .3s;visibility:hidden;
  }
  .gnb.is-open{transform:none;visibility:visible}
  .gnb > ul{display:block;height:auto}
  .gnb > ul > li{width:auto;height:auto;text-align:left;border-bottom:1px solid var(--line)}
  .gnb-top{justify-content:space-between;height:auto;padding:20px 0;font-size:20px;color:var(--black)}
  .gnb-top::after{
    position:static;width:10px;height:10px;background:none;transform:rotate(45deg);
    border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;margin:-6px 4px 0 0;
  }
  .gnb > ul > li:hover .gnb-top::after,.gnb > ul > li.is-current .gnb-top::after{transform:rotate(45deg)}
  .gnb > ul > li.is-expanded .gnb-top::after{transform:rotate(-135deg);margin-top:6px}
  .gnb > ul > li:hover .gnb-top{color:var(--black)}
  .gnb > ul > li.is-current .gnb-top{color:var(--point)}
  .depth2{
    position:static;height:auto;padding:0 0 16px;border:0 !important;
    opacity:1;visibility:visible;display:none;transition:none;
  }
  .gnb > ul > li.is-expanded .depth2{display:block}
  .depth2 a{padding:10px 4px;font-size:16px;color:var(--gray)}

  .slide{grid-template-columns:1fr;gap:32px}
  .slide-img{order:-1}
  .slide-text h1,.slide-text h2{font-size:40px}
  .pc{display:none}
  .section,.sub .section{padding:100px 0}
  .about,.feature,.location{grid-template-columns:1fr;gap:40px}
  .about--text{gap:20px}
  .ov-facts{grid-template-columns:repeat(2,1fr)}
  .ov-facts li:nth-child(3){border-left:0}
  .ov-facts li:nth-child(n+3){border-top:1px solid var(--line)}
  .cards{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:16px;padding-bottom:8px;scrollbar-width:none}
  .cards::-webkit-scrollbar{display:none}
  .card{flex:0 0 30%;scroll-snap-align:start}
  .tech{grid-template-columns:repeat(2,1fr)}
  .tech li:not(:nth-child(4n+1)){border-left:0}
  .tech li:nth-child(2n){border-left:1px solid var(--line)}
}
@media (max-width:640px){
  .visual{padding-top:24px}
  .slide-text h1,.slide-text h2{font-size:32px}
  .slide-text p{font-size:16px;margin-top:16px}
  .btn{margin-top:28px;height:48px}
  .arrow{min-width:0}
  .arrow-name{display:none}
  .quick{grid-template-columns:repeat(3,1fr);margin-top:48px}
  .quick a{padding:24px 4px;font-size:13px}
  .quick a + a{border-left:0}
  .quick a:not(:nth-child(3n+1)){border-left:1px solid var(--line)}
  .quick a:nth-child(n+4){border-top:1px solid var(--line)}
  .sub-visual{height:200px}
  .sub-visual h1{font-size:30px}
  .sub-visual p{font-size:15px}
  .loc-inner{height:50px;padding:0}
  .loc-home{width:50px;flex:none;border-left:0}
  .loc-item{flex:1;width:auto;min-width:0}
  .loc-item:last-child{border-right:0}
  .loc-btn{padding:0 14px;font-size:14px;gap:8px}
  .loc-btn svg{flex:none}
  .loc-list a{padding:9px 14px;font-size:14px}
  .section,.sub .section{padding:72px 0}
  .sub .section-sm{padding:64px 0}
  .sec-head{margin-bottom:44px}
  .sec-head h2{font-size:30px}
  .sub-title{font-size:22px;margin-bottom:24px}
  .about-text h3,.feature-text h2{font-size:24px}
  .lead{font-size:20px;text-align:left}
  .ov-facts{margin-top:48px}
  .ov-facts li{padding:32px 12px}
  .ov-facts svg{width:40px;height:40px}
  .ov-facts strong{font-size:16px}
  .ov-facts span{font-size:14px}
  .values{grid-template-columns:1fr}
  .values li{padding:32px 28px}
  .values li + li{border-left:0;border-top:1px solid #e3e1dd}
  .feature-img{padding:16px}
  .feature-img--text{padding:0 28px}
  .feature-img--text span{font-size:40px}
  .card{flex:0 0 46%}
  .cards--nav .card-name{font-size:14px}
  .card-name{font-size:15px}
  .card-desc{font-size:13px}
  .card-img--text{padding:0 14px}
  .card-img--text span{font-size:16px}
  .tech{grid-template-columns:1fr}
  .tech li:nth-child(2n){border-left:0}
  .tech li{padding:28px 4px}
  .history > div{grid-template-columns:1fr;gap:12px;padding:28px 0}
  .history dt{font-size:28px}
  .map,.map iframe{min-height:300px}
  .contact div{grid-template-columns:70px 1fr}
  .contact dd{font-size:16px}
  .footer-inner{flex-direction:column;gap:28px}
  .footer-info i{margin:0 8px}
}

@media (prefers-reduced-motion:reduce){
  .slide,.js .reveal,.card-img img,.gnb,.depth2,.gnb-panel{transition:none}
  .js .reveal{opacity:1;transform:none}
}