:root{
  --navy:#0b1f3a; --navy2:#12305a; --ink:#111827; --sub:#4b5563; --muted:#6b7280; --line:#e5e7eb;
  --bg:#f6f8fb; --accent:#0a84d6; --accent-l:#38bdf8; --tint:#eaf5fd;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Pretendard,-apple-system,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;color:var(--ink);line-height:1.7;word-break:keep-all;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
h1,h2,h3,h4{line-height:1.35;margin:0;letter-spacing:-.02em}
p{margin:0}

/* GNB */
.gnb{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.gnb-in{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;font-weight:800;font-size:22px;letter-spacing:.02em;color:var(--navy)}
.brand .lens,.ft-brand .lens{width:.95em;height:.95em;margin-right:.04em;flex:none}
.brand b,.ft-brand b{color:var(--accent);font-weight:800;margin-left:.3em}
.gnb nav{display:flex;align-items:center;gap:6px}
.gnb nav a{padding:10px 16px;font-size:15.5px;font-weight:600;color:#374151;border-radius:8px}
.gnb nav a:hover{color:var(--accent)}
.gnb nav a.on{color:var(--accent)}
.gnb nav a.nav-cta{background:var(--navy);color:#fff;margin-left:10px}
.gnb nav a.nav-cta:hover{background:var(--accent)}
.menu-btn{display:none;font-size:24px;cursor:pointer;color:var(--navy)}
@media(max-width:900px){
  .menu-btn{display:block}
  .gnb nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:10px 20px 20px;border-bottom:1px solid var(--line)}
  #menu-toggle:checked ~ nav{display:flex}
  .gnb nav a.nav-cta{margin:8px 0 0;text-align:center}
}

/* 공통 */
.sec{padding:100px 0}
.sec.gray{background:var(--bg)}
.sec-head{margin-bottom:48px}
.label{display:inline-block;font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.06em;margin-bottom:10px}
.sec-head h2{font-size:clamp(26px,3vw,36px);font-weight:800}
.sec-head p{color:var(--sub);font-size:17px;margin-top:14px;max-width:760px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:15px 26px;border-radius:8px;font-weight:700;font-size:15.5px;transition:.15s}
.btn-a{background:var(--accent);color:#fff}.btn-a:hover{background:#0870b6}
.btn-w{background:#fff;color:var(--navy)}.btn-w:hover{background:var(--tint)}
.btn-line{border:1px solid rgba(255,255,255,.4);color:#fff}.btn-line:hover{background:rgba(255,255,255,.08)}
.more{font-weight:700;color:var(--accent);font-size:15px}
.more:after{content:" →"}

/* 메인 비주얼 */
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#071a33 0%,var(--navy2) 100%);color:#fff;padding:130px 0 120px}
.hero:after{content:"";position:absolute;right:-120px;top:-80px;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.28),rgba(56,189,248,0) 65%)}
.hero .grid-bg{position:absolute;inset:0;opacity:.13;background-image:linear-gradient(rgba(255,255,255,.4) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.4) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(90deg,transparent,#000 70%)}
.hero .wrap{position:relative;z-index:1}
.hero .kicker{font-size:14px;font-weight:700;letter-spacing:.12em;color:var(--accent-l)}
.hero h1{font-size:clamp(34px,5vw,58px);font-weight:800;margin:18px 0 22px}
.hero h1 span{color:var(--accent-l)}
.hero p.desc{font-size:18.5px;color:#cbd5e1;max-width:640px}
.hero .cta{display:flex;gap:12px;margin-top:40px;flex-wrap:wrap}

/* 숫자 */
.figures{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.figures div{padding:38px 28px;border-right:1px solid var(--line)}
.figures div:last-child{border-right:0}
.figures strong{display:block;font-size:34px;font-weight:800;color:var(--navy)}
.figures strong small{font-size:18px;font-weight:700;margin-left:2px}
.figures span{color:var(--muted);font-size:14.5px}
@media(max-width:900px){.figures{grid-template-columns:1fr 1fr}.figures div:nth-child(2){border-right:0}}

/* 사업분야 카드 */
.biz{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
@media(max-width:1100px){.biz{grid-template-columns:repeat(3,1fr)}}
@media(max-width:800px){.biz{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.biz{grid-template-columns:1fr}}
.biz a{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:14px;padding:28px 22px;background:#fff;transition:.2s;min-height:290px}
.biz a:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:0 14px 34px rgba(10,30,60,.08)}
.biz .no{font-size:13px;font-weight:800;color:var(--accent)}
.biz h3{font-size:19.5px;margin:12px 0 12px}
.biz p{color:var(--sub);font-size:15px;flex:1}
.biz .tags{margin-top:18px;font-size:13px;color:var(--muted)}

/* 실적 카드 */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:1000px){.cases{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.cases{grid-template-columns:1fr}}
.case{border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden;display:flex;flex-direction:column}
.case .top{background:linear-gradient(135deg,var(--navy),var(--navy2));color:#fff;padding:22px 24px}
.case .cat{font-size:12.5px;color:var(--accent-l);font-weight:700}
.case h3{font-size:18.5px;margin-top:6px}
.case .body{padding:22px 24px;flex:1;display:flex;flex-direction:column;gap:10px}
.case dl{margin:0;display:grid;grid-template-columns:52px 1fr;gap:6px 10px;font-size:14.5px}
.case dt{color:var(--muted);font-weight:600}
.case dd{margin:0;color:#1f2937}
.case .result{margin-top:auto;background:var(--tint);border-radius:8px;padding:10px 14px;font-size:14.5px;color:#075985;font-weight:600}
.case .stack{font-size:12.5px;color:var(--muted)}

/* 서브 비주얼 */
.sub-hero{background:linear-gradient(135deg,#071a33,var(--navy2));color:#fff;padding:84px 0 70px;position:relative;overflow:hidden}
.sub-hero:after{content:"";position:absolute;right:-80px;bottom:-160px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(56,189,248,.25),rgba(56,189,248,0) 65%)}
.sub-hero .path{font-size:13.5px;color:#94a3b8}
.sub-hero h1{font-size:clamp(30px,4vw,44px);font-weight:800;margin:10px 0 12px}
.sub-hero p{color:#cbd5e1;font-size:17px;max-width:680px}
.tabs{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:72px;z-index:40}
.tabs .wrap{display:flex;gap:4px;overflow-x:auto}
.tabs a{padding:18px 18px;font-weight:600;color:var(--muted);border-bottom:2px solid transparent;white-space:nowrap}
.tabs a:hover{color:var(--accent);border-color:var(--accent)}

/* 사업분야 상세 */
.svc{display:grid;grid-template-columns:320px 1fr;gap:56px;padding:80px 0;border-bottom:1px solid var(--line)}
.svc:last-child{border-bottom:0}
@media(max-width:900px){.svc{grid-template-columns:1fr;gap:24px}}
.svc .head .no{font-size:14px;font-weight:800;color:var(--accent)}
.svc .head h2{font-size:28px;margin:8px 0 14px}
.svc .head p{color:var(--sub)}
.svc .detail{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:640px){.svc .detail{grid-template-columns:1fr}}
.box{background:var(--bg);border-radius:12px;padding:24px 26px}
.box h4{font-size:15.5px;margin-bottom:10px;color:var(--navy)}
.box ul{margin:0;padding-left:18px;color:#374151;font-size:15px}
.box li{margin:4px 0}
.box.wide{grid-column:1/-1;background:#fff;border:1px solid var(--line)}

/* 프로세스 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:f}
@media(max-width:900px){.flow{grid-template-columns:1fr 1fr;gap:16px}}
.flow div{padding:30px 26px;border:1px solid var(--line);background:#fff;margin-left:-1px}
.flow div:before{counter-increment:f;content:"STEP 0" counter(f);display:block;font-size:12.5px;font-weight:800;color:var(--accent);letter-spacing:.06em}
.flow h3{font-size:19px;margin:8px 0 8px}
.flow p{font-size:14.5px;color:var(--sub)}
.flow em{display:block;font-style:normal;margin-top:12px;font-size:13.5px;color:#075985}

/* 회사소개 */
.intro{display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:start}
@media(max-width:900px){.intro{grid-template-columns:1fr}}
.intro h2{font-size:30px;margin-bottom:20px}
.intro p{color:var(--sub);margin-bottom:14px;font-size:16.5px}
.values{display:grid;gap:14px}
.values div{border-left:3px solid var(--accent);background:var(--bg);padding:18px 22px;border-radius:0 10px 10px 0}
.values b{display:block;font-size:16.5px;margin-bottom:4px}
.values span{color:var(--sub);font-size:15px}
.ceo{display:grid;grid-template-columns:300px 1fr;gap:48px}
@media(max-width:900px){.ceo{grid-template-columns:1fr}}
.ceo .card{background:linear-gradient(160deg,var(--navy),var(--navy2));color:#fff;border-radius:16px;padding:34px 30px;align-self:start}
.ceo .card .role{color:var(--accent-l);font-size:13px;font-weight:700;letter-spacing:.06em}
.ceo .card h3{font-size:26px;margin:8px 0 18px}
.ceo .card li{color:#cbd5e1;font-size:14.5px;margin:6px 0}
.ceo .card ul{padding-left:16px;margin:0}
.timeline{list-style:none;margin:0;padding:0;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 26px 26px}
.timeline li:before{content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--accent)}
.timeline .org{font-weight:800;font-size:17px}
.timeline .role{color:var(--accent);font-weight:600;font-size:14.5px;margin-left:6px}
.timeline p{color:var(--sub);font-size:15px;margin-top:4px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.chips span{font-size:13px;background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:5px 10px;color:#374151}
.table{width:100%;border-collapse:collapse;font-size:15px}
.table th,.table td{border-bottom:1px solid var(--line);padding:14px 12px;text-align:left;vertical-align:top}
.table th{width:150px;color:var(--navy);background:var(--bg);font-weight:700}

/* 문의 */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr}}
.contact-card{background:linear-gradient(160deg,var(--navy),var(--navy2));color:#fff;border-radius:16px;padding:40px}
.contact-card h2{font-size:28px;margin-bottom:12px}
.contact-card p{color:#cbd5e1}
.contact-card .row{margin-top:26px;padding-top:20px;border-top:1px solid rgba(255,255,255,.15)}
.contact-card .row b{display:block;font-size:13px;color:var(--accent-l);letter-spacing:.05em}
.contact-card .row span{font-size:19px;font-weight:700}
.check{background:var(--bg);border-radius:16px;padding:36px}
.check h3{font-size:20px;margin-bottom:14px}
.check ol{margin:0;padding-left:20px;color:#374151}
.check li{margin:8px 0}
details{border-bottom:1px solid var(--line);padding:20px 4px}
summary{cursor:pointer;font-weight:700;font-size:16.5px;list-style:none}
summary::-webkit-details-marker{display:none}
summary:before{content:"Q.";color:var(--accent);margin-right:10px}
details p{color:var(--sub);margin-top:10px;padding-left:28px}

/* 하단 CTA */
.band{background:linear-gradient(135deg,#071a33,var(--navy2));color:#fff;padding:70px 0}
.band .wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.band h2{font-size:28px}
.band p{color:#cbd5e1;margin-top:8px}

/* 푸터 */
.ft{background:#061325;color:#8a97ab;font-size:13.5px;padding:44px 0}
.ft-in{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
.ft-brand{display:flex;align-items:center;color:#fff;font-weight:800;font-size:19px;letter-spacing:.02em}
.ft-brand b{color:var(--accent-l)}
.ft-info p{margin:3px 0}
.ft .copy{margin-top:10px;color:#5d6b80}

/* 히어로 2단 + 일러스트 */
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero-visual svg{width:100%;height:auto;filter:drop-shadow(0 30px 60px rgba(0,0,0,.35))}
@media(max-width:1000px){.hero-grid{grid-template-columns:1fr}.hero-visual{max-width:560px}}
.industries{border-bottom:1px solid var(--line);background:#fff}
.industries .wrap{display:flex;flex-wrap:wrap;gap:10px 28px;align-items:center;padding-top:22px;padding-bottom:22px;color:#64748b;font-weight:600;font-size:15px}
.industries .t{color:var(--navy);font-weight:800;margin-right:8px}
/* 회사소개: 수행 영역 / 기술 역량 */
.domains{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:900px){.domains{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.domains{grid-template-columns:1fr}}
.domains>div{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px}
.domains .ic{width:42px;height:42px;border-radius:10px;background:var(--tint);color:var(--accent);display:grid;place-items:center;font-size:20px;font-weight:800;margin-bottom:14px}
.domains h3{font-size:18.5px;margin-bottom:8px}
.domains p{color:var(--sub);font-size:15px}
.fine{color:var(--muted);font-size:13.5px;margin-top:22px}
.caps{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:700px){.caps{grid-template-columns:1fr}}
.caps>div{border-top:3px solid var(--navy);padding:22px 4px 4px}
.caps h3{font-size:19px;margin-bottom:8px}
.caps p{color:var(--sub)}

.vh{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.case .kind{display:inline-block;margin-top:8px;font-size:12px;font-weight:700;padding:3px 8px;border-radius:5px;background:rgba(255,255,255,.12);color:#e2e8f0}
.case .kind.self{background:rgba(56,189,248,.18);color:#bae6fd}
.case .kind.career{background:rgba(250,204,21,.16);color:#fde68a}
.principles{display:grid;grid-template-columns:1fr 1fr;gap:14px 40px;margin:0;padding:0;list-style:none}
@media(max-width:800px){.principles{grid-template-columns:1fr}}
.principles li{padding:16px 0 16px 34px;border-bottom:1px solid var(--line);position:relative;color:#374151}
.principles li:before{content:"✓";position:absolute;left:4px;top:15px;color:var(--accent);font-weight:800}