/* 한백하우징 — Zip Water 레이아웃 원칙(투명 헤더+로고 탭, 풀블리드 히어로, 배경색이 바뀌는 좌우 교차 섹션, 직각 버튼)을
   스카이블루·그린 팔레트로 구현. 검정 배경 없음. */
:root{--sky:#69C9ED;--sky-d:#4DB8E0;--green:#49B887;--bg-sky:#F0FAFF;--mint:#EAF8F1;--ink:#344A57;--mute:#5F7684;--line:#D3E6EE;--hd:80px;--max:1200px}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--hd) + 12px)}
body{font-family:Pretendard,-apple-system,BlinkMacSystemFont,"Noto Sans KR","Malgun Gothic",sans-serif;font-size:16px;line-height:1.75;color:var(--ink);background:#fff;overflow-x:hidden;word-break:keep-all}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
ul{list-style:none}
.skip{position:absolute;left:-999px;top:0;background:#fff;color:var(--ink);padding:8px 12px;z-index:100}
.skip:focus{left:0}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px}

/* 버튼 — Zip: 직각, 14px/500 */
.btn{display:inline-block;font-size:14px;font-weight:500;line-height:1.2;font-family:inherit;padding:14px 26px;border:1px solid var(--sky);background:var(--sky);color:var(--ink);text-decoration:none;text-align:center;cursor:pointer;transition:background-color .3s,border-color .3s,color .3s}
.btn:hover{background:var(--sky-d);border-color:var(--sky-d)}
.btn-line{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-line:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.btn-light{background:#fff;border-color:#fff;color:var(--ink)}
.btn-light:hover{background:var(--bg-sky);border-color:var(--bg-sky)}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.more{display:inline-block;padding-top:6px;font-size:14px;font-weight:500;text-decoration:none;border-bottom:1px solid var(--ink);padding-bottom:4px}
.more:hover{color:#2F9FCB;border-color:#2F9FCB}

/* 헤더 — 홈: 히어로 위 투명, 스크롤하면 흰색. 서브: 처음부터 흰색. 왼쪽 상단에 걸린 로고 탭 */
.hd{position:fixed;top:0;left:0;right:0;z-index:50;height:var(--hd);transition:background-color .3s,box-shadow .3s}
.hd:not(.solid){background:linear-gradient(rgba(240,250,255,.92),rgba(240,250,255,0))}
.hd.solid{background:#fff;box-shadow:0 1px 0 var(--line)}
.hd-in{max-width:calc(var(--max) + 48px);margin:0 auto;height:100%;padding:0 24px;display:flex;align-items:center;gap:40px}
.logo{align-self:flex-start;width:88px;height:88px;background:var(--sky);border-bottom:4px solid var(--green);color:var(--ink);text-decoration:none;display:flex;align-items:center;justify-content:center;text-align:center;font-weight:800;font-size:17px;line-height:1.25;letter-spacing:-.02em;flex:none}
.gnb{display:flex;align-items:center;gap:30px;flex:1}
.gnb a{color:var(--ink);text-decoration:none;font-size:15px;font-weight:500;padding:6px 0;border-bottom:1px solid transparent}
.gnb a:hover,.gnb a[aria-current]{border-bottom-color:var(--ink)}
.gnb .gnb-cta{margin-left:auto;padding:12px 22px;border:1px solid var(--sky)}
.gnb .gnb-cta:hover{border-color:var(--sky-d)}
.burger{display:none;width:44px;height:44px;background:none;border:0;cursor:pointer;position:relative;margin-left:auto}
.burger span{position:absolute;left:11px;right:11px;height:2px;background:var(--ink);transition:transform .25s,top .25s}
.burger span:first-child{top:17px}.burger span:last-child{top:25px}
.burger[aria-expanded=true] span:first-child{top:21px;transform:rotate(45deg)}
.burger[aria-expanded=true] span:last-child{top:21px;transform:rotate(-45deg)}
.has-solid main{padding-top:var(--hd)}

/* 홈 히어로 — 화면의 약 88% 높이 풀블리드 사진, 텍스트는 왼쪽 */
.hero-full{position:relative;height:min(88vh,780px);min-height:580px;background:var(--bg-sky);overflow:hidden}
.hero-full picture,.hero-full img{position:absolute;inset:0;width:100%;height:100%}
.hero-full img{object-fit:cover;object-position:60% 50%}
.hero-full:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(240,250,255,.96) 0%,rgba(240,250,255,.9) 28%,rgba(240,250,255,0) 55%)}
.hero-txt{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;max-width:var(--max);margin:0 auto;padding:var(--hd) 24px 0}
.hero-txt>*{max-width:430px}
.eyebrow{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.eyebrow:before{content:"";width:8px;height:8px;background:var(--green);flex:none}
h1{font-size:clamp(34px,4.4vw,56px);line-height:1.18;font-weight:500;letter-spacing:-.03em}
.hero-txt h1{margin-bottom:18px}
.lead{font-size:17px;line-height:1.7;margin-bottom:26px}
.scroll{position:absolute;z-index:3;left:50%;bottom:28px;width:34px;height:52px;margin-left:-17px;border:1px solid var(--ink);border-radius:20px;display:flex;align-items:center;justify-content:center}
.scroll:after{content:"";width:9px;height:9px;border-right:2px solid var(--ink);border-bottom:2px solid var(--ink);transform:rotate(45deg) translate(-2px,-2px)}

/* 서브페이지 상단 — 연한 블루 밴드 + 오른쪽 사진 */
.hero-sub{background:var(--bg-sky);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);min-height:460px}
.hero-sub .hero-copy{padding:56px 48px 56px max(24px,calc((100vw - var(--max))/2 + 24px));display:flex;flex-direction:column;justify-content:center;align-items:flex-start}
.hero-img{position:relative;overflow:hidden;background:var(--mint)}
.hero-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-sub h1{font-size:clamp(28px,3.4vw,42px);margin-bottom:16px}
.hero-sub .lead{margin-bottom:0;font-size:16px}
.crumb{font-size:14px;color:var(--mute);margin-bottom:18px}
.crumb a{display:inline-block;padding:4px 0;color:var(--mute);text-decoration:none}.crumb a:hover{color:var(--ink);text-decoration:underline}

/* 섹션 */
.sec{padding:88px 0}
.sec:not(.band-soft):not(.band-mint)+.sec:not(.band-soft):not(.band-mint){padding-top:0}
.band-soft{background:var(--bg-sky)}
.band-mint{background:var(--mint)}
h2{font-size:clamp(19px,1.7vw,22px);line-height:1.45;font-weight:600;letter-spacing:-.02em}
h3{font-size:17px;line-height:1.5;font-weight:600}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.sec-head p,.sec-lead{color:var(--mute);font-size:15px;margin-top:6px}
.note{font-size:14px;color:var(--mute);margin-top:28px}

/* 시공사례 모자이크 — 히어로 바로 아래, 좌우 끝까지 */
.mosaic-head{padding-top:56px;padding-bottom:24px}
.mosaic{display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(2,minmax(0,1fr));gap:6px;height:min(66vw,760px)}
.mi{position:relative;display:block;overflow:hidden;background:var(--mint)}
.mi:first-child{grid-column:span 2;grid-row:span 2}
.mi img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 35%;transition:transform .6s}
.mi:hover img{transform:scale(1.03)}
.mi span{position:absolute;left:14px;bottom:14px;background:rgba(255,255,255,.94);color:var(--ink);font-size:14px;font-weight:500;line-height:1.4;padding:8px 14px}

/* 주요 서비스 — 배경색이 바뀌는 좌우 교차 */
.feature{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:64px;max-width:calc(var(--max) + 48px);margin:0 auto;padding:72px 24px}
.feature img{width:100%;aspect-ratio:4/3;object-fit:cover}
.feature.rev>div{order:-1}
.feature h2{margin-bottom:12px}
.feature p{font-size:16px;margin-bottom:24px;max-width:30em}
.mini{display:grid;grid-template-columns:repeat(3,1fr);gap:0 40px}
.mini a{display:block;text-decoration:none;padding:20px 0;border-top:1px solid var(--line)}
.mini b{display:block;font-size:16px;font-weight:600}
.mini span{display:block;font-size:14px;color:var(--mute);line-height:1.6;margin-top:2px}
.mini a:hover b{color:#2F9FCB}

/* 상황 / 확인 사항 / 과정 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split img{width:100%;aspect-ratio:4/3;object-fit:cover}
.check li{padding:14px 0 14px 28px;border-top:1px solid var(--line);position:relative;font-size:16px}
.check li:last-child{border-bottom:1px solid var(--line)}
.check li:before{content:"";position:absolute;left:4px;top:23px;width:10px;height:6px;border-left:2px solid var(--green);border-bottom:2px solid var(--green);transform:rotate(-45deg)}
.check b{font-weight:600}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:0 48px}
.facts div{border-top:2px solid var(--green);padding:16px 0 28px}
.facts h3{margin-bottom:6px}
.facts p{font-size:15px;color:var(--ink)}
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:28px}
.flow li{position:relative;padding-top:28px;border-top:1px solid var(--line)}
.flow li:before{content:"";position:absolute;left:0;top:-6px;width:11px;height:11px;background:var(--green)}
.flow h3{font-size:16px;margin-bottom:4px}
.flow p{font-size:14px;color:var(--mute);line-height:1.65}

/* FAQ */
.faq{border-top:1px solid var(--ink)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 0}
.faq summary::-webkit-details-marker{display:none}
.faq summary h3{font-size:16.5px;font-weight:600}
.faq summary:after{content:"+";font-size:22px;font-weight:300;line-height:1;flex:none}
.faq details[open] summary:after{content:"−"}
.faq p{padding:0 40px 22px 0;font-size:16px}

/* 상담 밴드 — 스카이블루 + 그린 포인트, 중앙 정렬 */
.cta{background:var(--sky);border-top:4px solid var(--green);padding:72px 0;text-align:center}
.cta h2{font-size:clamp(19px,1.9vw,24px);margin-bottom:10px}
.cta p{font-size:16px;max-width:34em;margin:0 auto 26px}
.cta .btns{justify-content:center}

/* 시공사례 카드 (목록·상세 하단) */
.case{display:block;text-decoration:none;color:inherit}
.case img{width:100%;aspect-ratio:4/5;object-fit:cover;background:var(--mint);transition:opacity .3s}
.case:hover img{opacity:.9}
.case-t{display:block;margin-top:10px;font-size:16px;font-weight:600;line-height:1.5}
.case-m{display:block;font-size:14px;color:var(--mute);line-height:1.5}
.case:hover .case-m{color:#2F9FCB}
.gal,.rel{display:grid;grid-template-columns:repeat(3,1fr);gap:28px 20px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.two .check{margin-top:14px}
figure img.xph{width:100%;aspect-ratio:4/5;object-fit:cover;max-height:560px}
figcaption{font-size:14px;color:var(--mute);margin-top:8px;line-height:1.5}

/* 서비스·유형 페이지 */
.svc{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:56px 0;border-top:1px solid var(--line)}
.svc:first-of-type{border-top:0}
.svc:nth-of-type(even) .svc-img{order:2}
.svc-img img{width:100%;aspect-ratio:4/3;object-fit:cover}
.svc h2{margin-bottom:12px}
.svc p{font-size:16px;margin-bottom:12px}
.svc ul{font-size:15px;margin:6px 0 4px}
.svc li{padding-left:16px;position:relative;margin-bottom:4px}
.svc li:before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;background:var(--green)}
.svc-text{grid-template-columns:1fr;background:var(--mint);padding:40px;margin-top:24px;border:0}
.tbl{width:100%;border-collapse:collapse;font-size:15px}
.tbl th,.tbl td{text-align:left;padding:14px 16px 14px 0;border-bottom:1px solid var(--line);vertical-align:top}
.tbl thead th{border-bottom:1px solid var(--ink);font-size:14px;color:var(--mute);font-weight:600}
.tbl td:first-child{font-weight:600;white-space:nowrap}
.type{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:48px 0;border-top:1px solid var(--line)}
.type img{object-position:50% 25%;width:100%;aspect-ratio:4/5;max-height:520px;object-fit:cover}
.type:nth-of-type(even) img{order:2}
.type p{margin:10px 0 14px}

/* 상담 */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.ways div{display:flex;justify-content:space-between;gap:16px;padding:18px 0;border-top:1px solid var(--line)}
.ways>:last-child{border-bottom:1px solid var(--line)}
.ways b{font-weight:600}
.send li{padding:12px 0 12px 20px;position:relative;border-top:1px solid var(--line);font-size:16px}
.send li:before{content:"";position:absolute;left:0;top:23px;width:7px;height:7px;background:var(--green)}
.send li:last-child{border-bottom:1px solid var(--line)}
.prose p{margin-bottom:14px;max-width:40em}
.prose h2{margin:36px 0 12px}

/* 푸터 — 밝은 배경, 업체정보 | 바로가기 */
.ft{background:var(--bg-sky);color:var(--ink);font-size:13px;line-height:1.9;padding-top:48px;border-top:4px solid var(--green)}
.ft-in{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.ft strong{display:block;font-size:14px;font-weight:700;margin-bottom:8px}
.ft-brand{display:flex!important;align-items:center;gap:8px}
.ft-brand i{width:12px;height:12px;background:var(--sky);border-bottom:3px solid var(--green);display:block}
.ft a{text-decoration:none}
.ft a:hover{text-decoration:underline}
.ft-nav a{display:block}
.ft-copy{margin-top:32px;padding-top:18px;padding-bottom:28px;border-top:1px solid var(--line);color:var(--mute);font-size:12px}

/* ── 태블릿 ── */
@media(max-width:1000px){
  .gnb{gap:20px}
  .feature,.split,.contact-grid{grid-template-columns:1fr;gap:32px}
  .feature{padding:56px 24px}
  .feature.rev>div{order:0}
  .feature img,.split img{aspect-ratio:16/10;max-height:420px}
  .mini{grid-template-columns:repeat(2,1fr)}
  .facts{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(3,1fr);gap:32px 24px}
}
/* ── 모바일 ── */
@media(max-width:820px){
  :root{--hd:60px}
  .wrap{padding:0 20px}
  .hd-in{padding:0 8px 0 20px;gap:0}
  .logo{width:60px;height:64px;font-size:13px}
  .burger{display:block}
  .gnb{position:fixed;top:var(--hd);left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 24px;border-top:1px solid var(--line);box-shadow:0 8px 16px rgba(52,74,87,.08);transform:translateY(-120%);visibility:hidden;transition:transform .25s,visibility .25s;max-height:calc(100vh - var(--hd));overflow:auto}
  .gnb.open{transform:none;visibility:visible}
  .gnb a{font-size:17px;padding:16px 0;border-bottom:1px solid var(--line)}
  .gnb .gnb-cta{margin:20px 0 0;text-align:center;padding:15px}
  /* 모바일 히어로: 사진 위, 텍스트 아래 — 첫 화면에 사진·H1·버튼 */
  .hero-full{height:auto;min-height:0;background:#fff}
  .hero-full picture{position:relative;display:block;height:min(46vh,380px)}
  .hero-full:after{display:none}
  .hero-full img{object-position:50% 38%}
  .hero-txt{height:auto;padding:26px 20px 34px}
  .hero-txt>*{max-width:none}
  .hero-txt .btns{width:100%}
  .hero-txt .btns .btn{flex:1 1 0;white-space:nowrap;padding:14px 8px}
  h1{font-size:34px}
  .lead{font-size:16px;margin-bottom:22px}
  .scroll{display:none}
  .hero-sub{grid-template-columns:1fr;min-height:0}
  .hero-sub .hero-copy{padding:26px 20px 34px}
  .hero-sub .hero-img{order:-1;height:auto;aspect-ratio:5/4;max-height:380px}
  .hero-sub h1{font-size:28px}
  .sec{padding:56px 0}
  .mosaic-head{padding-top:40px;padding-bottom:18px}
  .mosaic{grid-template-columns:repeat(2,1fr);grid-template-rows:none;height:auto;gap:4px}
  .mi{aspect-ratio:4/5}
  .mi:first-child{grid-column:span 2;grid-row:auto;aspect-ratio:4/3}
  .mi span{left:10px;bottom:10px;padding:6px 10px}
  .feature{padding:44px 20px;gap:24px}
  .feature img,.split img{aspect-ratio:4/3;max-height:none}
  .mini{grid-template-columns:1fr}
  .facts{grid-template-columns:1fr}
  .facts div{padding-bottom:20px}
  .flow{grid-template-columns:1fr;gap:0;border-left:1px solid var(--line);margin-left:5px}
  .flow li{border-top:0;padding:0 0 24px 26px}
  .flow li:before{left:-6px;top:6px}
  .svc,.type{grid-template-columns:1fr;gap:20px;padding:36px 0}
  .svc:nth-of-type(even) .svc-img,.type:nth-of-type(even) img{order:0}
  .svc-text{padding:24px 20px}
  .type img{aspect-ratio:4/3;max-height:none}
  .gal,.rel{grid-template-columns:repeat(2,1fr);gap:20px 14px}
  .rel .case:nth-child(3){display:none}
  .two{grid-template-columns:1fr;gap:32px}
  .cta{padding:52px 0}
  .cta .btns .btn{flex:1 1 100%}
  .ft-in{grid-template-columns:1fr;gap:20px}
  .ft-nav{display:flex;flex-wrap:wrap;gap:4px 16px}
  .ft-nav strong{flex:0 0 100%;margin-bottom:2px}
  .tbl{font-size:14px}.tbl td:first-child{white-space:normal}
  .faq p{padding-right:0}
}