/* 대용건설 공개 홈페이지
   색: 철근 남색 / 안전 주황 / 콘크리트 회색   글꼴: Black Han Sans(제목) + IBM Plex Sans KR(본문) */
:root{
  --navy:#14306b; --navy-2:#0e2350; --navy-3:#1d3f86;
  --orange:#f08a00; --orange-2:#d97a00;
  --concrete:#e9ebee; --concrete-2:#f5f6f7;
  --ink:#18202c; --sub:#5a6573; --steel:#8e98a6; --line:#d5d9df;
  --display:"Black Han Sans","Malgun Gothic",sans-serif;
  --body:"IBM Plex Sans KR","Malgun Gothic","맑은 고딕","Apple SD Gothic Neo",sans-serif;
  --w:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font:16px/1.7 var(--body);word-break:keep-all}
a{color:inherit}
img{max-width:100%}
:focus-visible{outline:3px solid var(--orange);outline-offset:2px}
.in{max-width:var(--w);margin:0 auto;padding:0 28px}
h1,h2,h3{font-family:var(--display);font-weight:400;letter-spacing:-.01em;line-height:1.25;margin:0}

/* ── 머리 ── */
.hd{position:sticky;top:0;z-index:30;background:#fff;border-bottom:1px solid var(--line)}
.hd .in{display:flex;align-items:center;height:78px;gap:40px}
.hd-logo{display:flex;align-items:center;gap:12px;text-decoration:none;flex:none}
.hd-logo img{height:44px;width:auto}
.hd-logo .wm{font-family:var(--display);font-size:24px;color:var(--navy)}
.hd-logo .mk{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;background:var(--navy);color:#fff;font-family:var(--display);font-size:22px;border-radius:4px}
.gnb{display:flex;height:100%;margin-left:auto}
.gnb>li{list-style:none;position:relative;height:100%}
.gnb>li>a{display:flex;align-items:center;height:100%;padding:0 22px;font-weight:600;font-size:16.5px;text-decoration:none;color:var(--ink);border-bottom:3px solid transparent}
.gnb>li:hover>a,.gnb>li.on>a{color:var(--navy);border-bottom-color:var(--orange)}
.gnb ul{display:none;position:absolute;left:0;top:100%;min-width:190px;background:#fff;border:1px solid var(--line);border-top:0;padding:10px 0;margin:0;box-shadow:0 12px 24px rgba(20,48,107,.08)}
.gnb>li:hover ul,.gnb>li:focus-within ul{display:block}
.gnb ul li{list-style:none}
.gnb ul a{display:block;padding:7px 22px;text-decoration:none;color:var(--sub);font-size:15px}
.gnb ul a:hover{color:var(--navy);background:var(--concrete-2)}
.gnb{padding:0;margin-top:0;margin-bottom:0}
.staff{flex:none;display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border:1.5px solid var(--navy);color:var(--navy);text-decoration:none;font-weight:600;font-size:14.5px;border-radius:3px}
.staff:hover{background:var(--navy);color:#fff}
.burger{display:none;margin-left:auto;background:none;border:0;padding:8px;cursor:pointer}
.burger span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0}

/* ── 히어로: 골조 단면 ── */
.hero{background:var(--navy);color:#fff;overflow:hidden;position:relative}
.hero .in{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:end;min-height:560px}
.hero-txt{padding:84px 0 96px}
.hero h1{font-size:clamp(46px,6.2vw,84px);line-height:1.08;color:#fff}
.hero p{max-width:30em;margin:26px 0 34px;color:#c9d3e6;font-size:17px}
.hero .what{display:block;color:var(--orange);font-weight:600;font-size:15px;margin-bottom:18px}
.btns{display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 24px;font:600 15.5px var(--body);text-decoration:none;border-radius:3px;border:1.5px solid transparent;cursor:pointer}
.btn.o{background:var(--orange);color:#fff;border-color:var(--orange)}
.btn.o:hover{background:var(--orange-2);border-color:var(--orange-2)}
.btn.w{color:#fff;border-color:rgba(255,255,255,.55)}
.btn.w:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn.n{background:var(--navy);color:#fff}
.btn.n:hover{background:var(--navy-2)}
.btn.line{color:var(--navy);border-color:var(--navy)}
.tower{align-self:stretch;display:flex;align-items:flex-end;justify-content:center}
.tower svg{width:100%;max-width:470px;height:auto;display:block}
.tower .slab{fill:#fff}
.tower .col{fill:#3e5ea3}
.tower .rebar{fill:#6f8bc6}
.tower .lbl{fill:#8fa4cf;font:500 12px var(--body)}
.tower .now{fill:var(--orange)}
.tower .now-t{fill:var(--orange);font:600 13px var(--body)}
.tower .ground{fill:#0b1d44}
@media (prefers-reduced-motion:no-preference){
  .tower .fl{opacity:0;transform:translateY(14px);animation:rise .5s cubic-bezier(.2,.7,.2,1) forwards;animation-delay:calc(var(--i) * 70ms + 200ms)}
  .tower .now-g{opacity:0;animation:rise .5s ease forwards;animation-delay:calc(var(--n) * 70ms + 450ms)}
}
@keyframes rise{to{opacity:1;transform:none}}

/* ── 공통 섹션 ── */
.sec{padding:96px 0}
.sec.gray{background:var(--concrete-2)}
.sec-h{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.sec-h h2{font-size:clamp(30px,3.4vw,42px);color:var(--navy)}
.sec-h p{margin:8px 0 0;color:var(--sub)}
.more{color:var(--navy);font-weight:600;text-decoration:none;border-bottom:1.5px solid var(--orange);padding-bottom:2px;white-space:nowrap}

/* 주요사업: 줄 단위 */
.biz{border-top:2px solid var(--navy)}
.biz-row{display:grid;grid-template-columns:minmax(220px,380px) 1fr;gap:32px;padding:30px 0;border-bottom:1px solid var(--line)}
.biz-row h3{font-size:27px;color:var(--ink)}
.biz-row p{margin:0;color:var(--sub);max-width:42em}
.biz-row .tags{margin-top:10px;display:flex;flex-wrap:wrap;gap:6px}
.biz-row .tags span{font-size:13.5px;padding:3px 10px;background:var(--concrete);color:var(--ink);border-radius:2px}

/* 안전 기록 장부 */
.ledger{display:grid;grid-template-columns:1fr 1.2fr;gap:56px;align-items:start}
.ledger-intro h2{font-size:clamp(30px,3.4vw,42px);color:var(--navy)}
.ledger-intro p{color:var(--sub);margin:14px 0 24px}
.ledger table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line)}
.ledger caption{caption-side:top;text-align:left;font-size:14px;color:var(--sub);padding-bottom:10px}
.ledger th,.ledger td{padding:17px 22px;border-bottom:1px solid var(--line);text-align:left}
.ledger th{font-weight:500}
.ledger td{text-align:right;font-family:var(--display);font-size:28px;color:var(--navy);white-space:nowrap}
.ledger td small{font:500 14px var(--body);color:var(--sub);margin-left:4px}
.ledger tr:first-child td{color:var(--orange)}

/* 시공실적 목록 */
.proj{width:100%;border-collapse:collapse;border-top:2px solid var(--navy)}
.proj th{font-size:14px;color:var(--sub);font-weight:500;text-align:left;padding:12px 14px;border-bottom:1px solid var(--line)}
.proj td{padding:18px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.proj td.nm{font-weight:600;font-size:17px}
.st{display:inline-block;font-size:13px;font-weight:600;padding:2px 9px;border-radius:2px;white-space:nowrap}
.st.ing{background:#fff1de;color:var(--orange-2)}
.st.done{background:var(--concrete);color:var(--sub)}
.empty{padding:40px 0;color:var(--sub)}

/* 소식 */
.news2{display:grid;grid-template-columns:1.3fr 1fr;gap:56px}
.news-h{display:flex;justify-content:space-between;align-items:baseline;border-bottom:2px solid var(--navy);padding-bottom:10px;margin-bottom:6px}
.news-h h3{font-size:22px;color:var(--navy)}
.nlist{list-style:none;margin:0;padding:0}
.nlist li{border-bottom:1px solid var(--line)}
.nlist a{display:flex;gap:18px;justify-content:space-between;padding:15px 0;text-decoration:none}
.nlist a:hover .t{color:var(--navy);text-decoration:underline}
.nlist .d{color:var(--steel);font-size:14px;white-space:nowrap}
.newsimg{display:grid;grid-template-columns:120px 1fr;gap:18px;padding:16px 0;border-bottom:1px solid var(--line);text-decoration:none}
.newsimg .ph-img{width:120px;height:84px;background:var(--concrete);display:flex;align-items:center;justify-content:center;color:var(--steel);font-size:13px;overflow:hidden}
.newsimg .ph-img img{width:100%;height:100%;object-fit:cover}
.newsimg b{display:block;font-weight:600}
.newsimg span{color:var(--steel);font-size:14px}

/* 하단 안내 */
.cta{background:var(--navy-2);color:#fff}
.cta .in{display:grid;grid-template-columns:1fr 1fr;gap:0}
.cta a{display:block;padding:46px 40px 46px 0;text-decoration:none;color:#fff}
.cta a+a{padding-left:40px;border-left:1px solid rgba(255,255,255,.15)}
.cta h3{font-size:28px}
.cta p{margin:8px 0 0;color:#aebbd6}
.cta a:hover h3{color:var(--orange)}

/* 바닥글 */
.ft{background:#0a1938;color:#93a2c0;font-size:14px;padding:44px 0 50px}
.ft .in{display:grid;grid-template-columns:1fr auto;gap:30px}
.ft b{color:#fff;font-weight:600;font-size:16px}
.ft p{margin:8px 0 0}
.ft nav{display:flex;gap:18px;flex-wrap:wrap;align-items:flex-start}
.ft nav a{text-decoration:none;color:#c3cde0}
.ft nav a:hover{color:#fff}

/* 채워 넣을 자리 표시 */
.ph{border-bottom:1.5px dashed var(--orange);color:var(--orange-2);background:#fff7ec;padding:0 3px}

/* ── 하위 페이지 ── */
.ph-band{background:var(--navy);color:#fff;padding:54px 0 46px}
.ph-band .crumb{font-size:14px;color:#9fb0d4;margin-bottom:10px}
.ph-band .crumb a{text-decoration:none;color:#c9d3e6}
.ph-band h1{font-size:clamp(34px,4vw,50px)}
.sub-wrap{display:grid;grid-template-columns:220px 1fr;gap:60px;padding-top:56px;padding-bottom:110px}
.lnb{position:sticky;top:100px;align-self:start}
.lnb strong{display:block;font-family:var(--display);font-weight:400;font-size:22px;color:var(--navy);padding-bottom:12px;border-bottom:2px solid var(--navy)}
.lnb ul{list-style:none;padding:0;margin:0}
.lnb a{display:block;padding:12px 4px;border-bottom:1px solid var(--line);text-decoration:none;color:var(--sub)}
.lnb a:hover{color:var(--navy)}
.lnb a.on{color:var(--navy);font-weight:700;border-left:3px solid var(--orange);padding-left:12px}
.content{min-width:0;max-width:820px}
.content h2{font-size:28px;color:var(--navy);margin:44px 0 16px}
.content h2:first-child{margin-top:0}
.content p{margin:0 0 14px}
.lead{font-size:20px;line-height:1.65;color:var(--ink);font-weight:500}
.dl{width:100%;border-collapse:collapse;border-top:2px solid var(--navy)}
.dl th{width:180px;text-align:left;font-weight:600;background:var(--concrete-2);padding:15px 18px;border-bottom:1px solid var(--line);vertical-align:top}
.dl td{padding:15px 18px;border-bottom:1px solid var(--line)}
.tl{list-style:none;margin:0;padding:0;border-left:2px solid var(--navy)}
.tl li{position:relative;padding:0 0 22px 28px}
.tl li::before{content:"";position:absolute;left:-7px;top:9px;width:12px;height:12px;background:#fff;border:2px solid var(--navy)}
.tl li:first-child::before{background:var(--orange);border-color:var(--orange)}
.tl b{font-family:var(--display);font-weight:400;font-size:20px;color:var(--navy);margin-right:14px}
.sign{margin-top:36px;text-align:right;font-size:18px}
.sign b{font-family:var(--display);font-weight:400;font-size:24px;margin-left:10px}
.note{background:var(--concrete-2);border-left:3px solid var(--steel);padding:14px 18px;color:var(--sub);font-size:15px;margin:18px 0}

/* 조직도 */
.org{display:flex;flex-direction:column;align-items:center}
.org .box{background:var(--navy);color:#fff;padding:12px 26px;font-weight:600;border-radius:2px;text-align:center}
.org .box.lt{background:#fff;color:var(--navy);border:1.5px solid var(--navy)}
.org .box.or{background:var(--orange)}
.org .v{width:2px;height:26px;background:var(--navy)}
.org .row{display:flex;gap:0;position:relative;margin-top:26px;justify-content:center}
.org .row>div{position:relative;display:flex;flex-direction:column;align-items:center;gap:8px;padding:0 8px}
.org .row>div::before{content:"";position:absolute;top:-26px;left:calc(50% - 1px);width:2px;height:26px;background:var(--navy)}
.org .row>div::after{content:"";position:absolute;top:-26px;left:0;right:0;height:2px;background:var(--navy)}
.org .row>div:first-child::after{left:50%}
.org .row>div:last-child::after{right:50%}
.org .row small{color:var(--sub);font-size:13.5px;text-align:center}

/* 게시판(공개) */
.blist{list-style:none;padding:0;margin:0;border-top:2px solid var(--navy)}
.blist li a{display:grid;grid-template-columns:1fr auto;gap:16px;padding:18px 6px;border-bottom:1px solid var(--line);text-decoration:none}
.blist li a:hover .t{color:var(--navy);text-decoration:underline}
.blist .d{color:var(--steel);font-size:14.5px}
.blist .pin{color:var(--orange-2);font-weight:700;margin-right:6px}
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:28px 22px}
.gal a{text-decoration:none}
.gal .ph-img{aspect-ratio:4/3;background:var(--concrete);display:flex;align-items:center;justify-content:center;color:var(--steel);overflow:hidden;margin-bottom:12px}
.gal .ph-img img{width:100%;height:100%;object-fit:cover}
.gal b{display:block;font-weight:600;line-height:1.45}
.gal span{color:var(--steel);font-size:14px}
.pager{display:flex;gap:6px;justify-content:center;margin-top:30px}
.pager a,.pager span{min-width:36px;text-align:center;padding:5px 10px;border:1px solid var(--line);text-decoration:none}
.pager span{background:var(--navy);border-color:var(--navy);color:#fff}
.post-h{border-top:2px solid var(--navy);border-bottom:1px solid var(--line);padding:22px 4px}
.post-h h2{margin:0!important;font-size:26px}
.post-h .d{color:var(--steel);font-size:14.5px;margin-top:6px}
.post-b{padding:28px 4px;white-space:pre-wrap;line-height:1.85}
.post-b img{display:block;margin:0 0 16px;max-height:560px}
.att{background:var(--concrete-2);padding:16px 20px;margin-bottom:24px}
.att a{color:var(--navy)}

/* 문의 */
.form{display:grid;grid-template-columns:1fr 1fr;gap:16px 18px}
.form .full{grid-column:1/-1}
.form label{display:block;font-weight:600;font-size:15px;margin-bottom:6px}
.form input[type=text],.form input[type=email],.form select,.form textarea{width:100%;font:16px var(--body);padding:11px 13px;border:1px solid #b8c0cb;border-radius:2px;background:#fff}
.form textarea{min-height:170px;resize:vertical}
.form .req{color:var(--orange-2)}
.agree{background:var(--concrete-2);padding:16px 18px;font-size:14.5px;color:var(--sub)}
.agree label{font-weight:600;color:var(--ink);margin-top:8px}
.hp{position:absolute;left:-9999px}
.flash{padding:14px 18px;margin-bottom:20px;background:#fff1de;color:#8a4b00;border-left:3px solid var(--orange)}
.flash.ok{background:#e8f3ec;color:#1d6b42;border-color:#2e9b62}

/* ── 반응형 ── */
@media (max-width:1060px){
  .gnb>li>a{padding:0 13px;font-size:15.5px}
  .hd .in{gap:20px}
}
@media (max-width:900px){
  .gnb,.hd .staff{display:none}
  .burger{display:block}
  body.nav-open .gnb{display:block;position:fixed;inset:78px 0 0 0;background:#fff;overflow:auto;padding:10px 28px 40px;margin:0}
  body.nav-open .gnb>li{height:auto}
  body.nav-open .gnb>li>a{height:auto;padding:16px 0 8px;border:0;font-size:18px;color:var(--navy)}
  body.nav-open .gnb ul{display:block;position:static;border:0;box-shadow:none;padding:0 0 10px}
  body.nav-open .gnb ul a{padding:7px 0}
  body.nav-open .gnb .m-staff{display:block}
  .hero .in{grid-template-columns:1fr;min-height:0}
  .hero-txt{padding:60px 0 10px}
  .tower svg{max-width:340px}
  .biz-row,.ledger,.news2,.cta .in,.sub-wrap,.ft .in{grid-template-columns:1fr}
  .biz-row{gap:8px}
  .ledger{gap:28px}
  .cta a,.cta a+a{padding:34px 0;border-left:0}
  .cta a+a{border-top:1px solid rgba(255,255,255,.15)}
  .sub-wrap{gap:24px;padding-top:24px}
  .lnb{position:static}
  .lnb ul{display:flex;gap:6px;overflow-x:auto;padding:12px 0 0}
  .lnb li{flex:none}
  .lnb a,.lnb a.on{border:1px solid var(--line);padding:7px 14px;border-radius:2px;font-size:14.5px}
  .lnb a.on{border-color:var(--navy);background:var(--navy);color:#fff;padding-left:14px}
  .gal{grid-template-columns:1fr 1fr}
  .form{grid-template-columns:1fr}
  .sec{padding:64px 0}
  .proj th:nth-child(3),.proj td:nth-child(3){display:none}
  .dl th{width:110px}
  .org .row{flex-direction:column;gap:14px;margin-top:14px}
  .org .row>div::before,.org .row>div::after{display:none}
}
.m-staff{display:none}