/* 디자인: split(좌우 비대칭 분할 히어로 · 둥근 코너 · Pretendard 단일 폰트)
   팔레트: C46 Cloud Gray · 메인강조 #52525B / 포인트 #2563A8 · 제목/본문 모두 Pretendard */
:root{--font-display:'Pretendard','Apple SD Gothic Neo',sans-serif;--font-display-weight:800;--pri:#52525B;--acc:#2563A8;--acc-ondark:#4086D5;--ink:#18181B;--mute:#71717A;--line:#E9E9EB;--alt:#F4F4F5;--radius:14px;--radius-sm:8px}
*{word-break:keep-all;overflow-wrap:break-word;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Pretendard','Apple SD Gothic Neo',sans-serif;color:var(--ink);background:#fff;margin:0}
h1,h2,h3{font-family:var(--font-display);font-weight:var(--font-display-weight);line-height:1.25;letter-spacing:-0.01em}
h2{font-weight:700}
h3{font-weight:600}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{cursor:pointer;font-family:inherit}
table{width:100%;border-collapse:collapse}

/* 헤더 */
#hdr{position:fixed;top:0;left:0;right:0;z-index:200;background:rgba(255,255,255,.95);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
#hdr-inner{max-width:1200px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between}
.logo-wrap{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:var(--font-display-weight);font-size:1rem;color:var(--pri)}
.btn-cta{background:var(--acc);color:#fff;padding:10px 22px;border-radius:999px;font-weight:700;font-size:.875rem;letter-spacing:.01em;transition:opacity .15s;display:inline-flex;align-items:center;min-height:44px}
.btn-cta:hover{opacity:.85}
.btn-outline{border:1px solid var(--pri);color:var(--pri);padding:9px 20px;border-radius:999px;font-weight:700;font-size:.875rem;transition:all .15s;display:inline-flex;align-items:center;min-height:44px}
.btn-outline:hover{background:var(--pri);color:#fff}

main>:first-child{margin-top:64px}

/* split 히어로 — 좌측 컬러 패널(텍스트) + 우측 사진(오버레이 없음) */
.split-hero{display:grid;grid-template-columns:1fr 1fr;min-height:520px}
.split-hero-panel{background:var(--pri);color:#fff;display:flex;flex-direction:column;justify-content:center;padding:60px 56px}
.hero-eyebrow{font-size:.7rem;letter-spacing:.25em;text-transform:uppercase;color:rgba(255,255,255,.65);margin-bottom:16px}
.split-hero-h1{font-size:clamp(2rem,4vw,3.2rem);font-weight:800;color:#fff;line-height:1.2;margin:0 0 18px}
.split-hero-sub-text{color:rgba(255,255,255,.86);font-size:1rem;line-height:1.8;margin-bottom:30px;max-width:460px}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap}
.btn-cta-onpanel{background:#fff;color:var(--acc)}
.btn-outline-onpanel{border-color:rgba(255,255,255,.6);color:#fff}
.btn-outline-onpanel:hover{background:rgba(255,255,255,.15);border-color:#fff}
.split-hero-photo{overflow:hidden}
.split-hero-photo img{width:100%;height:100%;object-fit:cover;min-height:520px}
.split-hero-main{min-height:560px}
.split-hero-main .split-hero-photo img{min-height:560px}
.split-hero-sub{min-height:400px}
.split-hero-sub .split-hero-photo img{min-height:400px}
.split-hero-sub .split-hero-h1{font-size:clamp(1.7rem,3.5vw,2.6rem)}

/* 섹션 */
.section{padding:88px 24px;border-top:1px solid var(--line)}
.section-inner{max-width:1200px;margin:0 auto}
.section-inner-sm{max-width:860px;margin:0 auto}
.sec-num{font-size:.68rem;letter-spacing:.25em;color:var(--mute);margin-bottom:8px;display:block}
.section-title{font-size:clamp(1.5rem,3vw,2.15rem);color:var(--ink);margin:0 0 12px;line-height:1.25}
.section-lead{color:var(--mute);line-height:1.9;margin-bottom:48px;font-size:.95rem}

/* 시공사진 그리드 (단일사진 · 라이트박스) */
.photo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.photo-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.photo-slot{position:relative;aspect-ratio:4/3;overflow:hidden;cursor:pointer;background:var(--alt);margin:0;display:block;border-radius:var(--radius-sm)}
.photo-slot img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;display:block}
.photo-slot:hover img{transform:scale(1.04)}
.photo-caption{position:absolute;bottom:0;left:0;right:0;padding:18px 10px 7px;font-size:.7rem;line-height:1.35;color:#fff;background:linear-gradient(transparent,rgba(0,0,0,.68));pointer-events:none;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 서비스 그리드 */
.grid-6{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.svc-card{padding:32px 26px;background:var(--alt);border-radius:var(--radius)}
.svc-card:hover{background:var(--line)}
.svc-bar{width:36px;height:3px;background:var(--pri);border-radius:2px;margin-bottom:20px}
.svc-title{font-size:1.02rem;font-weight:700;margin-bottom:10px;color:var(--ink)}
.svc-desc{color:var(--mute);font-size:.875rem;line-height:1.8}

/* 페이지 카드 (관련 서비스 링크용) */
.page-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:border-color .2s,box-shadow .2s;background:#fff}
.page-card:hover{border-color:var(--acc);box-shadow:0 8px 24px rgba(82,82,91,.08)}
.page-card-img{aspect-ratio:16/9;overflow:hidden}
.page-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.page-card:hover .page-card-img img{transform:scale(1.04)}
.page-card-body{padding:16px 18px}
.page-card-badge{font-size:.68rem;letter-spacing:.15em;color:var(--mute);margin-bottom:6px}
.page-card-title{font-weight:700;font-size:.95rem;color:var(--ink);margin-bottom:4px}
.page-card-desc{color:var(--mute);font-size:.8rem;line-height:1.6;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* 진행 과정 */
.process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.proc-step{padding:30px 26px;background:var(--alt);border-radius:var(--radius)}
.proc-num{font-size:1.9rem;font-weight:800;color:var(--pri);line-height:1;margin-bottom:14px;opacity:.85}
.proc-title{font-weight:700;font-size:.95rem;margin-bottom:8px;color:var(--ink)}
.proc-desc{color:var(--mute);font-size:.85rem;line-height:1.7}

/* 표 (절차/체크리스트/비교) */
.data-table{width:100%;border-collapse:separate;border-spacing:0;font-size:.9rem;line-height:1.6;border-radius:var(--radius-sm);overflow:hidden}
.data-table thead tr{background:var(--pri);color:#fff}
.data-table th{padding:.7rem 1rem;text-align:left}
.data-table td{padding:.7rem 1rem}
.data-table tbody tr{border-bottom:1px solid var(--line)}
.data-table tbody tr:nth-child(even){background:var(--alt)}
.data-table td:first-child{font-weight:600}

/* FAQ */
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;text-align:left;padding:22px 0;font-weight:700;font-size:.95rem;display:flex;justify-content:space-between;align-items:center;background:none;border:none;color:var(--ink)}
.faq-q .arr{width:18px;height:18px;flex-shrink:0;transition:transform .25s;stroke:var(--mute)}
.faq-q.open .arr{transform:rotate(180deg)}
.faq-a{display:none;padding:0 32px 22px 0;color:var(--mute);font-size:.9rem;line-height:1.9}
.faq-a.open{display:block}

/* 본문 텍스트 */
.body-text p{margin-bottom:1.5em;color:var(--ink);line-height:1.9;font-size:.95rem}
.body-text p:last-child{margin-bottom:0}
.body-text h3{font-size:1.15rem;margin:2em 0 .8em}

/* CTA */
.cta-section{background:var(--pri);padding:76px 24px;margin:0}
.cta-inner{max-width:700px;margin:0 auto;text-align:center}
.cta-title{color:#fff;font-size:clamp(1.5rem,3vw,2.1rem);margin:0 0 12px}
.cta-sub{color:rgba(255,255,255,.78);margin-bottom:32px;font-size:.95rem;line-height:1.8}
.cta-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.cta-btn-main{background:#fff;color:var(--acc);padding:14px 36px;border-radius:999px;font-weight:700;font-size:1rem;transition:opacity .15s;display:inline-flex;align-items:center;min-height:48px}
.cta-btn-main:hover{opacity:.9}

/* 푸터 */
footer{background:var(--ink);color:#aaa;padding:56px 24px 32px;margin:0}
.foot-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px}
.foot-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.05rem;margin-bottom:12px}
.foot-tagline{font-size:.85rem;line-height:1.8;margin-bottom:16px}
.foot-biz{font-size:.78rem;color:#aaa;line-height:1.85}
.foot-head{color:#fff;font-weight:700;font-size:.88rem;margin-bottom:14px;letter-spacing:.03em}
.foot-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:9px}
.foot-links a{font-size:.85rem;color:#aaa;transition:color .15s}
.foot-links a:hover{color:#fff}
.foot-copy{max-width:1200px;margin:32px auto 0;padding-top:24px;border-top:1px solid #2A2F3A;font-size:.78rem;color:#8890A0}

/* 플로팅 */
.float-wrap{position:fixed;right:18px;bottom:18px;z-index:300;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.float-cta{background:var(--acc);color:#fff;padding:12px 14px;border-radius:999px;font-size:.72rem;font-weight:700;text-align:center;line-height:1.3;transition:opacity .15s}
.float-cta:hover{opacity:.85}
.float-top{background:var(--ink);color:#fff;width:44px;height:44px;border:none;border-radius:50%;display:none;align-items:center;justify-content:center;font-size:1rem;transition:opacity .15s}
.float-top:hover{opacity:.75}

/* 라이트박스 */
#lb{position:fixed;inset:0;background:rgba(0,0,0,.93);z-index:9999;display:none;align-items:center;justify-content:center}
#lb.on{display:flex}
#lb img{max-width:92vw;max-height:90vh;object-fit:contain}
#lb-close{position:absolute;top:18px;right:22px;color:#fff;font-size:2rem;background:none;border:none;line-height:1;opacity:.8}
#lb-close:hover{opacity:1}
#lb-prev,#lb-next{position:absolute;top:50%;transform:translateY(-50%);background:none;border:none;color:#fff;font-size:3rem;padding:0 20px;opacity:.55;transition:opacity .15s;user-select:none}
#lb-prev:hover,#lb-next:hover{opacity:1}
#lb-prev{left:0}
#lb-next{right:0}
#lb-cap{position:absolute;bottom:18px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.8);font-size:.76rem;background:rgba(0,0,0,.5);padding:4px 14px;white-space:nowrap;pointer-events:none}

/* 모바일 — split 히어로는 반드시 1열로 스택 */
@media(max-width:768px){
  .split-hero{grid-template-columns:1fr}
  .split-hero-panel{padding:44px 24px;order:2}
  .split-hero-photo{order:1}
  .split-hero-photo img{min-height:260px}
  .split-hero-main .split-hero-photo img,.split-hero-sub .split-hero-photo img{min-height:260px}
  .split-hero-h1{font-size:1.7rem}
  .split-hero-sub-text{font-size:.93rem;line-height:1.7;max-width:none}
  .section{padding:52px 18px}
  .section-lead{margin-bottom:26px;font-size:.92rem}
  .svc-card{padding:22px 18px}
  .proc-step{padding:22px 18px}
  .faq-q{font-size:.9rem;padding:18px 0}
  .faq-a{padding-right:12px;padding-bottom:16px}
  .photo-grid,.photo-grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-6{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .cta-section{padding:48px 20px}
  .cta-btns{flex-direction:column;align-items:center}
  .foot-inner{grid-template-columns:1fr;gap:28px}
  .foot-copy{text-align:center}
  .float-cta{padding:11px 13px;font-size:.7rem}
  .data-table{font-size:.83rem}
  .data-table th,.data-table td{padding:.6rem .7rem}
}
@media(max-width:480px){
  .split-hero-panel{padding:36px 18px}
  .split-hero-h1{font-size:1.4rem}
  .split-hero-sub-text{font-size:.86rem;margin-bottom:22px}
  .section{padding:40px 16px}
  .section-lead{font-size:.88rem}
  .faq-q{font-size:.87rem}
  .photo-grid,.photo-grid-4{grid-template-columns:1fr 1fr;gap:6px}
  .svc-card{padding:18px 14px}
  .proc-step{padding:18px 14px}
  .cta-section{padding:40px 16px}
  .cta-btn-main{padding:13px 28px}
  .float-wrap{right:14px;bottom:14px;gap:8px}
  .float-cta{padding:10px 12px;font-size:.68rem}
  .data-table{font-size:.78rem}
  .data-table th,.data-table td{padding:.5rem .55rem}
  #hdr-inner{padding:0 14px}
  .logo-wrap{font-size:.92rem;gap:7px}
  .logo-wrap img{width:28px;height:28px}
  .btn-cta{padding:9px 16px;font-size:.82rem;min-height:40px}
}