/* 15 씽크대막힘 공동배관 — 도면형 그리드 (층·계통 카드 배치) */
:root{
  --bg:#F0F3F7;
  --ink:#1B2C42;
  --blue:#4F6D93;
  --sky:#B7C7DA;
  --deep:#0B1725;
  --font-display:"Freesentation","Noto Sans KR",system-ui,-apple-system,"Malgun Gothic",sans-serif;
  --font-body:"Noto Sans KR",system-ui,-apple-system,"Malgun Gothic",sans-serif;
}

body{background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:16px;line-height:1.8}

.site-header{background:#fff;border-bottom:1px solid var(--sky)}
.site-header .wrap{padding-block:16px}
.logo{font-family:var(--font-display);font-weight:700;font-size:18px;color:var(--deep)}
.site-header nav ul{font-size:13.5px}
.site-header nav a{color:var(--ink)}
.site-header nav a:hover,.site-header nav a:focus-visible{color:var(--blue)}
.related-nav{font-size:12.5px;color:var(--blue)}

.hero{background:var(--deep);color:#fff;padding-block:52px}
.hero .wrap{max-width:780px}
.hero .eyebrow{font-size:12.5px;letter-spacing:.1em;color:var(--sky);font-weight:700}
.hero h1{font-family:var(--font-display);font-weight:700;font-size:clamp(28px,5vw,38px);margin-top:14px}
.hero .lead{margin-top:16px;font-size:16.5px;color:#C6D2DF;max-width:56ch}
.hero .cta-inline{margin-top:22px;display:inline-block;background:var(--blue);color:#fff;font-weight:700;padding:12px 26px}

/* 도면형 그리드 */
.blueprint{padding-block:52px}
.blueprint .wrap{max-width:900px}
.blueprint h2{font-family:var(--font-display);font-weight:700;font-size:22px}
.blueprint > .wrap > p{margin-top:14px;max-width:66ch}

.floor-grid{margin-top:24px;border:1px solid var(--sky);background:#fff}
.floor-row{display:grid;grid-template-columns:80px 1fr;border-bottom:1px solid var(--sky)}
.floor-row:last-child{border-bottom:none}
.floor-row .floor-label{background:var(--bg);display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-weight:700;font-size:13px;border-right:1px solid var(--sky)}
.floor-row .unit-cell{padding:14px 18px;font-size:13.5px}
.floor-row.common .floor-label{background:var(--ink);color:#fff}
.floor-row.common .unit-cell{background:var(--sky);font-weight:700}

.main-body{padding-block:8px}
.main-body .wrap{max-width:820px}
.main-body section{margin-top:44px}
.main-body h2{font-family:var(--font-display);font-weight:700;font-size:22px}
.main-body p{margin-top:14px;max-width:66ch}
.main-body p + p{margin-top:12px}

.safety-box{margin-top:20px;background:#fff;border-left:4px solid var(--blue);padding:18px 20px}
.safety-box h3{font-family:var(--font-display);font-weight:700;font-size:15.5px;margin-bottom:8px}

figure{margin-top:26px}
figcaption{margin-top:10px;color:#4A5C6E;text-align:center}

.review-section{background:#fff;padding-block:52px;border-top:1px solid var(--sky)}
.review-section h2{font-family:var(--font-display);font-weight:700;font-size:21px;text-align:center}
.review-list{margin-top:24px;grid-template-columns:repeat(2,1fr)}
@media (max-width:640px){.review-list{grid-template-columns:1fr}}
.review-list blockquote{background:var(--bg);padding:16px;font-size:14.5px}
.review-list cite{display:block;margin-top:8px;font-style:normal;font-size:12.5px;color:var(--blue);font-weight:700}

.related-links{padding-block:36px}
.related-links .wrap{max-width:820px}
.related-links p{font-weight:700;font-size:13.5px;color:var(--blue);margin-bottom:12px}
.related-links a{background:#fff;border:1px solid var(--sky);padding:8px 14px;font-size:14px}

.cta-block{background:var(--deep);color:#fff;padding-block:46px}
.cta-block .cta-heading{font-family:var(--font-display);font-weight:700;font-size:22px}
.cta-block a[href^="tel:"]{margin-top:18px;background:var(--blue);color:#fff;font-weight:700;padding:14px 30px;display:inline-block}

.site-footer{background:#060E17;color:#8FA0B4;padding-block:14px;font-size:13px}

@media (max-width:600px){
  .floor-row{grid-template-columns:60px 1fr}
}

.photo-row-section h2{font-family:var(--font-display);font-size:22px;font-weight:800;text-align:center;margin-bottom:24px}
.photo-row{display:flex;flex-wrap:wrap;justify-content:center;gap:16px;max-width:1000px;margin-inline:auto}
.photo-row figure{flex:1 1 200px;max-width:260px;margin:0}
.photo-row img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block;border-radius:8px}
@media (max-width:640px){.photo-row{flex-direction:column;align-items:center}.photo-row figure{max-width:400px;width:100%}}