:root{
  --blue:#1B3FA6; --blue-deep:#102A73; --steel:#5C6B7E; --ice:#F1F5FA; --line:#D9E1EB;
  --ink:#141E30; --ink-2:#465266; --call:#FFC61A; --white:#fff;
  --font:"IBM Plex Sans KR",-apple-system,system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:#fff;font-size:17px;line-height:1.7;word-break:keep-all;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
.wrap{max-width:1200px;margin:0 auto;padding:0 40px}
section{padding:104px 0}
h1,h2,h3{font-weight:700;letter-spacing:-.025em;line-height:1.28}
h2{font-size:clamp(30px,3.4vw,44px)}
h3{font-size:22px}
.lead{font-size:19px;color:var(--ink-2);max-width:36em}
.ice{background:var(--ice)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--call);outline-offset:2px}

/* 버튼: 노란색은 전화 걸기에만 쓴다 */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:56px;padding:0 28px;font-weight:700;border-radius:6px;border:0;cursor:pointer}
.btn-call{background:var(--call);color:var(--ink);font-size:20px}
.btn-call:hover{background:#FFD24D}
.btn-line{border:2px solid #fff;color:#fff}
.btn-line:hover{background:#fff;color:var(--blue-deep)}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-deep)}

/* 헤더 */
header.site{position:sticky;top:0;z-index:30;background:#fff;border-bottom:1px solid var(--line)}
.hd{display:flex;align-items:center;gap:44px;height:84px}
.logo img{height:46px;width:auto}
.gnb{display:flex;gap:34px;list-style:none;flex:1}
.gnb a{font-weight:600;color:var(--ink-2);padding:6px 0;border-bottom:3px solid transparent}
.gnb a:hover{color:var(--blue)}
.gnb a.on{color:var(--blue);border-color:var(--blue)}
.hd-tel{font-size:23px;font-weight:700;color:var(--blue);letter-spacing:-.01em;white-space:nowrap}
.hd-call{display:flex;align-items:center;gap:14px}
.hd-btn{min-height:42px;padding:0 16px;font-size:16px;white-space:nowrap}

/* 홈 첫 화면 */
.hero{padding:72px 0 0}
.hero-tx{display:grid;gap:24px}
.story{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:56px;align-items:start}
.since{justify-self:start;display:flex;align-items:flex-end;gap:14px}
.since b{display:block;font-size:clamp(72px,9vw,128px);line-height:1;letter-spacing:-.04em;color:var(--blue)}
.since span{font-size:clamp(20px,2vw,28px);line-height:1.3;font-weight:700;color:var(--blue);padding-bottom:.35em}
.story-tx p{font-size:19px;line-height:1.85;color:var(--ink-2)}
.story-tx p+p{margin-top:18px}
.story-tx .sign{margin-top:28px;font-weight:700;color:var(--ink)}
.hero .motto{justify-self:start;margin-bottom:-6px;padding:4px 18px 6px;background:#C30D22;color:#fff;border-radius:8px;font-family:"Nanum Pen Script",cursive;font-size:clamp(28px,2.6vw,38px);line-height:1.1;letter-spacing:.02em}
.hero h1{font-size:clamp(36px,4.8vw,64px);letter-spacing:-.035em;line-height:1.2}
.hero p{font-size:19px;color:var(--ink-2)}
.work-lead{margin-top:14px;max-width:640px}
.btn-quiet{border:1px solid #B9C5D4;color:var(--ink)}
.btn-quiet:hover{border-color:var(--blue);color:var(--blue)}
.hero-ph{margin-top:56px}
.hero-ph img{width:100%;aspect-ratio:1400/535;object-fit:cover;object-position:center;border-radius:6px}

/* 온도 눈금 */
.temp-head{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:end}
.ruler{display:grid;grid-template-columns:minmax(300px,420px) 1fr;gap:56px;margin-top:56px}
.scale{align-self:start;list-style:none;border-left:6px solid;border-image:linear-gradient(180deg,#7FB2E8,var(--blue),var(--blue-deep)) 1}
.scale button{display:grid;grid-template-columns:128px 1fr;gap:12px;align-items:baseline;width:100%;padding:21px 0 21px 22px;text-align:left;background:none;border:0;border-bottom:1px solid var(--line);cursor:pointer;position:relative}
.scale li:last-child button{border-bottom:0}
.scale b{font-size:21px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.02em;color:var(--ink)}
.scale span{font-weight:600;color:var(--ink-2)}
.scale button:hover span{color:var(--blue)}
.scale button[aria-pressed="true"]{background:#fff}
.scale button[aria-pressed="true"] b,.scale button[aria-pressed="true"] span{color:var(--blue)}
.view img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:4px}
.view h3{margin-top:22px;font-size:26px}
.view p{margin-top:8px;color:var(--ink-2);max-width:36em}
.note{margin-top:18px;font-size:14px;color:var(--steel)}

/* 어디에 들어가나 */
.places{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-top:48px}
.places img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:4px}
.places h3{margin-top:18px}
.places p{margin-top:6px;color:var(--ink-2)}

/* 시공 사례 */
.head-row{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap}
.more{font-weight:700;color:var(--blue);border-bottom:2px solid currentColor}
.cases{display:grid;grid-auto-flow:dense;grid-template-columns:repeat(12,1fr);gap:20px;margin-top:44px}
.case{grid-column:span 4}
.case.big{grid-column:span 8}
.case img{width:100%;height:280px;object-fit:cover;border-radius:4px}
.case b{display:block;margin-top:12px;font-size:19px}
.case span{color:var(--ink-2);font-size:16px}

/* 진행 순서 */
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:48px;counter-reset:s}
.steps li{counter-increment:s;padding:0 28px 0 0;border-top:3px solid var(--blue);padding-top:20px}
.steps li::before{content:counter(s);display:block;font-size:30px;font-weight:700;color:var(--blue);line-height:1;margin-bottom:12px}
.steps p{color:var(--ink-2);margin-top:6px}

/* 사옥 띠 */
.base{display:grid;grid-template-columns:1.2fr 1fr;gap:64px;align-items:center}
.base img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:4px}
.base p{margin-top:16px;color:var(--ink-2)}

/* 서브페이지 머리 */
.page-head{padding:72px 0 56px;background:var(--ice)}
#rent{scroll-margin-top:96px}
.page-head h1{font-size:clamp(34px,4.4vw,54px)}
.page-head p{margin-top:16px}

/* 서비스 */
.biz-nav{background:var(--ice);padding:0 0 56px}
.biz-nav ul{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;list-style:none;padding:0;margin:0}
.biz-nav a{display:block;height:100%;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:8px;color:var(--ink);text-decoration:none;transition:border-color .15s}
.biz-nav a:hover,.biz-nav a:focus-visible{border-color:var(--blue)}
.biz-nav b{display:block;font-size:17px}
.biz-nav span{display:block;margin-top:4px;font-size:14px;color:var(--steel)}
.svc{scroll-margin-top:96px;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:56px 0;border-bottom:1px solid var(--line)}
.svc:last-child{border-bottom:0}
.svc img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:4px}
.svc ul{margin-top:14px;padding-left:20px;color:var(--ink-2)}
.svc p{margin-top:10px;color:var(--ink-2)}
.svc .t{font-size:17px;font-weight:700;color:var(--blue);font-variant-numeric:tabular-nums}

/* 회사 */
.info{display:grid;grid-template-columns:150px 1fr;gap:14px 24px;margin-top:28px}
.info dt{font-weight:700}
.info dd{color:var(--ink-2)}
.clients{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:36px;border-top:1px solid var(--line);list-style:none}
.rent-head{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:end}
.rent-head .t{color:var(--blue);font-weight:700;font-size:15px}
.rent-head h2{margin-top:6px}
.rent-ph{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:32px}
.rent-ph img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:6px}
.ask{display:grid;gap:12px;margin-top:24px}
.ask div{padding:16px 18px;background:var(--ice);border-radius:8px}
.ask b{display:block;font-size:17px;color:var(--ink)}
.ask p{margin-top:4px;font-size:15px;color:var(--ink-2);line-height:1.6}
.where{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px;list-style:none;padding:0}
.where li{background:#fff;border-radius:8px;padding:20px;color:var(--ink-2);font-size:15px;line-height:1.5}
.where li b{display:block;font-size:18px;color:var(--ink);margin-bottom:6px}
.clients-more{margin-top:14px;color:var(--steel)}
.org{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px;list-style:none;padding:0}
.org li{background:#fff;border-radius:8px;padding:20px;color:var(--ink-2);font-size:15px}
.org li b{display:block;font-size:18px;color:var(--ink);margin-bottom:4px}
.equip{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px}
.equip img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:6px}
.equip figcaption{margin-top:12px;color:var(--ink-2);font-size:15px}
.equip figcaption b{display:block;font-size:19px;color:var(--ink)}
.clients li{padding:20px 8px;border-bottom:1px solid var(--line);font-weight:600}

/* 문의 */
.ct{display:grid;grid-template-columns:1fr 1.2fr;gap:64px}
.big-tel{display:block;font-size:clamp(34px,4vw,48px);font-weight:700;color:var(--blue);margin-top:8px}
form{display:grid;grid-template-columns:1fr 1fr;gap:18px}
label{display:block;font-weight:600;font-size:15px}
.full{grid-column:1/-1}
input,select,textarea{display:block;width:100%;margin-top:6px;padding:13px 14px;border:1px solid #B9C5D4;border-radius:4px;background:#fff;font-weight:400;font-size:17px}
textarea{min-height:150px;resize:vertical}
.agree{display:flex;gap:8px;align-items:center;font-weight:400}
.agree input{width:auto;margin:0}
#msg{font-weight:600;color:var(--blue)}
.map{width:100%;height:320px;border:0;border-radius:4px;margin-top:24px}

/* 하단 */
.cta-band{background:var(--blue-deep);color:#fff;padding:72px 0}
.cta-in{display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap}
.cta-in h2{font-size:clamp(26px,3vw,38px)}
.cta-in p{color:#D5DFF5;margin-top:8px}
footer.site{background:#fff;padding:52px 0 36px;font-size:15px;color:var(--ink-2)}
.ft{display:flex;justify-content:space-between;gap:36px;flex-wrap:wrap}
.ft img{height:40px;width:auto;margin-bottom:12px}
.ft ul{list-style:none;display:flex;gap:22px;flex-wrap:wrap;font-weight:600}
.ft a:hover{color:var(--blue)}
.copy{margin-top:28px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--steel)}
.callbar{display:none}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media (max-width:960px){
  body{font-size:16px;padding-bottom:68px}
  .wrap{padding:0 20px}
  section{padding:68px 0}
  .hd{height:auto;flex-wrap:wrap;gap:0;padding-top:10px}
  .logo img{height:38px}
  .hd-call{margin-left:auto}
  .hd-tel{font-size:18px}
  .hd-btn{display:none}
  .gnb{order:3;flex:0 0 100%;gap:20px;overflow-x:auto;padding:10px 0 8px;scrollbar-width:none}
  .gnb a{white-space:nowrap;font-size:15px}
  .hero{padding-top:44px}
  .story{grid-template-columns:1fr;gap:28px}
  .org{grid-template-columns:1fr 1fr}
  .where{grid-template-columns:1fr 1fr}
  .biz-nav ul{grid-template-columns:1fr 1fr}
  .biz-nav a{padding:14px}
  .biz-nav b{font-size:15px}
  .rent-head{grid-template-columns:1fr;gap:14px}
  .rent-ph{grid-template-columns:1fr 1fr}
  .equip{grid-template-columns:1fr}
  .equip img{aspect-ratio:4/3}
  .story-tx p{font-size:17px}
  .hero-tx{gap:20px}
  .hero p{font-size:17px}
  .hero-ph{margin-top:32px}
  .temp-head,.ruler,.base,.svc,.ct{grid-template-columns:1fr;gap:28px}
  .ruler{margin-top:32px}
  .scale button{grid-template-columns:112px 1fr;padding:16px 0 16px 16px}
  .scale b{font-size:18px}
  .places{grid-template-columns:1fr;gap:28px}
  .cases{grid-template-columns:1fr}
  .case,.case.big{grid-column:auto}
  .case img{height:56vw}
  .steps{grid-template-columns:1fr;gap:24px}
  .clients{grid-template-columns:1fr 1fr}
  form{grid-template-columns:1fr}
  .callbar{display:grid;grid-template-columns:1.4fr 1fr;position:fixed;left:0;right:0;bottom:0;z-index:40;height:60px;font-weight:700;box-shadow:0 -2px 10px rgba(16,42,115,.18)}
  .callbar.wait{display:none}
  .callbar a{display:flex;align-items:center;justify-content:center}
  .callbar .c{background:var(--call);color:var(--ink);font-size:18px}
  .callbar .q{background:var(--blue);color:#fff}
}

/* 사례 필터 */
.filter{display:flex;flex-wrap:wrap;gap:8px}
.filter button{padding:9px 18px;border:1px solid #B9C5D4;border-radius:4px;background:#fff;font-weight:600;cursor:pointer}
.filter button.on{background:var(--blue);border-color:var(--blue);color:#fff}
.case[hidden]{display:none}
.case.flat{grid-column:span 4}

/* 고장 수리 */
.rp-top{background:var(--ice);padding:72px 0}
.rp-in{display:grid;grid-template-columns:1.2fr 1fr;gap:64px;align-items:center}
.rp-top h1{font-size:clamp(34px,4.4vw,54px)}
.rp-top .lead{margin-top:16px}
.hours{margin-top:14px;font-size:15px;color:var(--steel)}
.rp-ph{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:6px}
.rp-now{margin-top:48px;padding-top:28px;border-top:2px solid var(--ink)}
.rp-now h2{font-size:22px}
.rp-now ol{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px;padding:0;list-style:none;counter-reset:st}
.rp-now li{counter-increment:st;display:grid;grid-template-columns:44px 1fr;column-gap:14px;align-items:start;padding:22px 22px 24px;background:#fff;border-radius:8px;font-size:17px;line-height:1.55;color:var(--ink-2)}
.rp-now li::before{content:counter(st);grid-row:span 2;width:44px;height:44px;border-radius:50%;background:var(--blue,#1B3FA6);color:#fff;font-weight:700;font-size:20px;display:grid;place-items:center}
.rp-now li b{display:block;font-size:19px;color:var(--ink);margin-bottom:4px}
.sym{margin-top:32px;border-top:1px solid var(--line)}
.sym div{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:6px 40px;align-items:baseline;padding:22px 0;border-bottom:1px solid var(--line)}
.sym dt{font-weight:700;font-size:20px}
.sym dd{color:var(--ink-2)}
.sym .todo{color:#B4540A}
@media (max-width:960px){
  .case.flat{grid-column:auto}
  .rp-top{padding:44px 0}
  .rp-now{margin-top:32px;padding-top:20px}
  .rp-now ol{grid-template-columns:1fr;gap:10px}
  .rp-now li{padding:18px;font-size:16px}
  .rp-in{grid-template-columns:1fr;gap:28px}
  .sym div{grid-template-columns:1fr}
}