:root{
  --primary:#1B4B66;
  --accent:#FF7A00;
  --ink:#1a2027;
  --gray-600:#5b6572;
  --gray-200:#e4e8ec;
  --bg:#f7f8fa;
  color-scheme: light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Pretendard","Apple SD Gothic Neo","Malgun Gothic",sans-serif;color:var(--ink);line-height:1.6;background:#fff}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.35;margin:0 0 12px}
h2{font-size:clamp(1.5rem,3vw,2.1rem)}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(6px);border-bottom:1px solid var(--gray-200)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.logo{font-weight:800;font-size:1.25rem;color:var(--primary);margin-right:auto}
.site-nav{display:flex;align-items:center;gap:20px;font-weight:600}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border-radius:10px;font-weight:700;white-space:nowrap}
.btn-accent{background:var(--accent);color:#fff}
.btn-lg{padding:16px 32px;font-size:1.05rem;border-radius:14px}
.menu-toggle{display:none;background:none;border:0;font-size:1.4rem;cursor:pointer}
.mobile-nav{display:none;flex-direction:column;padding:12px 20px 20px;gap:4px;border-top:1px solid var(--gray-200)}
.mobile-nav a{padding:10px 4px;font-weight:600}

.breadcrumb-bar{background:var(--bg);font-size:.85rem;color:var(--gray-600)}
.breadcrumb-bar .wrap{display:flex;gap:8px;padding-top:10px;padding-bottom:10px;flex-wrap:wrap}
.breadcrumb-bar a:hover{color:var(--primary)}
.breadcrumb-bar .sep{color:var(--gray-200)}

/* Hero */
.hero{position:relative;padding:140px 0 150px;min-height:640px;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 25%;z-index:0}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(160deg,rgba(19,54,74,.86) 0%,rgba(10,28,39,.82) 60%,rgba(10,28,39,.55) 100%);opacity:0;z-index:1}
.hero-inner{position:relative;z-index:2}
.hero-content{max-width:600px}
.hero-badge{display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);padding:6px 14px;border-radius:999px;font-size:.85rem;font-weight:600;margin-bottom:16px}
.hero h1{font-size:clamp(2rem,4.4vw,3.1rem);font-weight:800;margin-bottom:16px;text-shadow:0 2px 16px rgba(0,0,0,.3)}
.hero p{font-size:1.05rem;color:rgba(255,255,255,.9);margin-bottom:28px;max-width:520px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.4)}

/* 시공사례 사진 카드 — 파생 페이지 전후사진 단락에서 사용 */
.section{padding:64px 0}
.section-head{max-width:640px;margin-bottom:32px}
.section-head p{color:var(--gray-600)}
.case-card{border:1px solid var(--gray-200);border-radius:14px;overflow:hidden;background:#fff;transition:transform .25s,box-shadow .25s}
.case-card:hover{transform:translateY(-6px);box-shadow:0 16px 32px rgba(0,0,0,.1)}
.case-card img{aspect-ratio:1/1;object-fit:cover}
.case-body{padding:10px 12px}
.case-tag{display:inline-block;font-size:.7rem;font-weight:700;color:var(--primary);background:#eaf1f5;padding:2px 8px;border-radius:999px;margin-bottom:6px}
.case-card h3{font-size:.9rem;margin-bottom:3px}
.case-card p{color:var(--gray-600);font-size:.78rem;margin:0}

/* 지역서비스 갤러리 (가운데 정렬 3장) — 서울: gallery 레이아웃 */
.region-gallery{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin:0 0 32px}
.region-gallery img{width:200px;border-radius:14px;object-fit:cover;box-shadow:0 8px 20px rgba(0,0,0,.08)}

/* 인천: alternating 레이아웃 (지그재그) */
.region-alt-row{display:flex;align-items:center;gap:32px;margin-bottom:32px}
.region-alt-row.reverse{flex-direction:row-reverse}
.region-alt-row img{width:240px;flex:0 0 240px;aspect-ratio:3/4;object-fit:cover;border-radius:16px;box-shadow:0 12px 28px rgba(0,0,0,.1)}
.region-alt-row p{color:var(--gray-600);margin:0}

/* 수원: timeline 레이아웃 */
.region-timeline{border-left:3px solid var(--gray-200);padding-left:24px;margin:24px 0}
.region-timeline-item{position:relative;margin-bottom:24px}
.region-timeline-item:last-child{margin-bottom:0}
.region-timeline-n{position:absolute;left:-35px;top:0;width:26px;height:26px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:700}
.region-timeline-item p{margin:0}

/* 성남: sidebar 레이아웃 */
.region-sidebar-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:40px;align-items:start}
.region-sidebar-aside{position:sticky;top:88px}
.region-sidebar-box{background:var(--bg);border:1px solid var(--gray-200);border-radius:16px;padding:20px;text-align:center}
.region-sidebar-box strong{color:var(--primary);font-size:1.05rem}
.region-sidebar-box p{color:var(--gray-600);font-size:.9rem;margin:8px 0 0}

/* 고양: 한 줄 카드 레이아웃 */
.region-line-list{display:flex;flex-direction:column;gap:12px;margin:20px 0}
.region-line-card{display:flex;align-items:flex-start;gap:14px;border:1px solid var(--gray-200);border-radius:12px;padding:16px 18px}
.region-line-n{flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--primary);color:#fff;font-size:.8rem;font-weight:700;display:flex;align-items:center;justify-content:center}
.region-line-card p{margin:0;color:var(--gray-600)}

/* Service intro (B) — 5개 한 줄 배열 */
.service-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.service-card{border:1px solid var(--gray-200);border-radius:14px;padding:22px 18px;text-align:center}
.service-card .ic{font-size:2rem;margin-bottom:10px}
.service-card h3{font-size:1rem}
.service-card p{color:var(--gray-600);font-size:.85rem;margin:0}
.intro-grid{grid-template-columns:repeat(3,1fr)}
.intro-card{text-align:left}

/* Process (D) */
.process-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{position:relative;padding:22px 18px;border:1px solid var(--gray-200);border-radius:14px}
.step .n{width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;margin-bottom:12px}
.step h3{font-size:.98rem}
.step p{color:var(--gray-600);font-size:.85rem;margin:0}

/* CTA section */
.cta-section{padding:72px 0;text-align:center;color:#fff;background:radial-gradient(circle at 30% 20%,#2a6a8c 0%,var(--primary) 55%,#0e2c3d 100%)}
.cta-inner h2{color:#fff}
.cta-inner p{color:rgba(255,255,255,.85);margin-bottom:26px}
.trust-badges{list-style:none;display:flex;justify-content:center;gap:12px;flex-wrap:wrap;padding:0;margin:26px 0 0;font-size:.85rem}
.trust-badges li{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.3);padding:6px 14px;border-radius:999px}

/* Sitemap section (visible, in footer area) */
.sitemap-section{padding:48px 0;background:var(--bg)}
.sitemap-grid{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:0;margin:0}
.sitemap-grid a{display:block;padding:10px 14px;background:#fff;border:1px solid var(--gray-200);border-radius:10px;font-size:.9rem}
.sitemap-grid a:hover{border-color:var(--primary);color:var(--primary)}

/* Footer */
.site-footer{background:#12222c;color:#c9d3d8;padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:28px;padding-bottom:32px}
.footer-grid h3{color:#fff;font-size:1rem}
.footer-grid ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px;font-size:.88rem}
.footer-grid p{font-size:.88rem;margin:0 0 6px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:16px 0;font-size:.8rem;color:#8b98a1}

/* Floating */
.floating-buttons{position:fixed;right:20px;bottom:20px;z-index:60;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.fab{width:auto;height:56px;padding:0 20px;border-radius:999px;display:flex;align-items:center;gap:8px;font-weight:700;box-shadow:0 10px 24px rgba(0,0,0,.25);border:0;cursor:pointer}
.fab-consult{background:var(--accent);color:#fff;position:relative}
.pulse-ring{position:absolute;inset:-6px;border-radius:999px;border:2px solid var(--accent);animation:pulse 3s infinite}
@keyframes pulse{0%{transform:scale(.9);opacity:.8}70%{transform:scale(1.35);opacity:0}100%{opacity:0}}
.fab-top{width:44px;height:44px;padding:0;border-radius:50%;background:#fff;color:var(--primary);border:1px solid var(--gray-200)}

/* Consult page */
.consult-card{max-width:520px;margin:0 auto;text-align:center;padding:48px 32px;border:1px solid var(--gray-200);border-radius:20px}
.consult-phone{font-size:2rem;font-weight:800;color:var(--primary);margin:18px 0}
.consult-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:18px}

/* Sitemap page */
.sm-hero{background:linear-gradient(160deg,var(--primary),#0e2c3d);color:#fff;padding:56px 0;text-align:center}
.sm-filters{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin:24px 0}
.sm-filters button{padding:8px 16px;border-radius:999px;border:1px solid var(--gray-200);background:#fff;cursor:pointer;font-weight:600}
.sm-filters button.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.sm-search{display:block;max-width:420px;margin:0 auto 28px;padding:12px 16px;border-radius:12px;border:1px solid var(--gray-200);width:100%}
.sm-count{text-align:center;color:var(--gray-600);margin-bottom:20px;font-size:.9rem}
.sm-card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.sm-card{border:1px solid var(--gray-200);border-radius:14px;padding:20px;transition:all .25s}
.sm-card:hover{transform:translateY(-4px);box-shadow:0 12px 24px rgba(0,0,0,.08);border-color:var(--primary)}
.sm-card .ic{font-size:1.8rem}
.sm-card h3{font-size:1rem;margin:8px 0 4px}
.sm-card p{color:var(--gray-600);font-size:.85rem;margin:0}
.sm-empty{text-align:center;color:var(--gray-600);padding:40px 0}

/* 404 */
.notfound{padding:96px 0;text-align:center}
.notfound .code{font-size:5rem;font-weight:800;color:var(--primary)}

@media (max-width:900px){
  .hero{padding:100px 0 110px;min-height:520px}
  .service-grid{grid-template-columns:repeat(3,1fr)}
  .process-steps,.footer-grid,.sitemap-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .region-sidebar-grid{grid-template-columns:1fr}
  .region-sidebar-aside{position:static;margin-top:24px}
}
@media (max-width:768px){
  .site-nav,.header-cta{display:none}
  .menu-toggle{display:block}
  .mobile-nav.open{display:flex}
  /* 안내 카드 / 진행 과정 카드: 모바일에서 한 줄(=한 카드씩 세로로), 카드 사이 여백 없이 */
  .intro-grid{grid-template-columns:1fr;gap:0}
  .intro-card{border-radius:0;margin-top:-1px}
  .intro-card:first-child{margin-top:0}
  .process-steps{grid-template-columns:1fr;gap:0}
  .step{border-radius:0;margin-top:-1px}
  .step:first-child{margin-top:0}

  /* 지역서비스 사진: 모바일에서 항상 작은 썸네일 한 줄로 표시 (레이아웃 상관없이 통일) */
  .region-gallery{gap:8px;margin-bottom:24px}
  .region-gallery img{width:calc(33.33% - 6px);max-width:none}

  .region-alt-row,.region-alt-row.reverse{flex-direction:row;flex-wrap:nowrap;gap:14px;margin-bottom:20px;align-items:flex-start}
  .region-alt-row img{width:88px;flex:0 0 88px;aspect-ratio:1/1}
  .region-alt-row p{flex:1;min-width:0}

  .region-sidebar-aside{display:flex;flex-wrap:wrap;gap:8px}
  .region-sidebar-box{width:100%}
  .region-sidebar-aside img{margin-top:0 !important;width:calc(33.33% - 6px) !important}
}
@media (max-width:560px){
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .intro-grid{grid-template-columns:1fr}
  .process-steps,.footer-grid,.sitemap-grid{grid-template-columns:1fr}
  .footer-grid{gap:0}
  .footer-grid > div{padding:16px 0;border-bottom:1px solid rgba(255,255,255,.08)}
  .footer-grid > div:first-child{padding-top:0}
  .footer-grid > div:last-child{border-bottom:0}
  .region-timeline{padding-left:18px}
  .region-timeline-n{left:-27px;width:22px;height:22px;font-size:.72rem}
}