/* heatchangeas.bosungworld.com — site 33, hero variant split-reverse, works two-col-stagger */
/* palette: clean-bluegray (direction C) */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;700;800&display=swap');
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css');

:root{
  --accent:#2E6B96;
  --accent-hover:#245A7E;
  --accent-soft:#E8F1F8;
  --accent-line:#B8D4E8;
  --ink:#1B2838;
  --sub:#4B5C6B;
  --muted:#7A8B9A;
  --line:#DDE5ED;
  --bg-soft:#EEF3F7;
  --footer-bg:#152535;
  --shadow-sm:0 1px 3px rgba(27,40,56,.06);
  --shadow-md:0 4px 20px rgba(27,40,56,.08);
  --shadow-lg:0 12px 40px rgba(27,40,56,.10);
  --ease:cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Noto Sans KR',-apple-system,BlinkMacSystemFont,'Malgun Gothic',sans-serif;color:var(--ink);line-height:1.65;background:#fff;font-size:16px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 28px}

.btn-fill,.btn-line{display:inline-flex;align-items:center;justify-content:center;padding:15px 28px;border-radius:8px;font-weight:700;font-size:17px;white-space:nowrap;transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease)}
.btn-fill{background:var(--accent);color:#fff}
.btn-fill:hover{background:var(--accent-hover)}
.btn-line{border:1px solid var(--line);color:var(--ink)}
.btn-line:hover{border-color:var(--accent);color:var(--accent)}

/* floating call button — click anywhere on it to dial, hover to reveal number */
.fab-call{position:fixed;right:20px;top:50%;transform:translateY(-50%);z-index:60;display:flex;align-items:center;background:#06CBFE;color:#fff;border-radius:999px;text-decoration:none;font-weight:700;white-space:nowrap;overflow:hidden}
.fab-icon{display:flex;align-items:center;justify-content:center;width:52px;height:52px;font-size:22px;flex-shrink:0}
.fab-label{padding-right:16px;font-size:15px}
.fab-number{max-width:0;opacity:0;font-size:15px;overflow:hidden;transition:max-width .3s var(--ease),opacity .2s var(--ease),padding .3s var(--ease)}
.fab-call:hover .fab-number{max-width:140px;opacity:1;padding-right:18px}
@media (max-width:640px){.fab-call{right:12px}.fab-label{display:none}.fab-call:hover .fab-number{padding-right:16px}}

/* header — solid white, Pretendard (tailorps.com top reference) */
.site-header{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);font-family:'Pretendard',-apple-system,sans-serif}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:80px;gap:20px}
.brand{display:flex;flex-direction:column;gap:1px;line-height:1.1}
.brand-sub{font-size:12px;font-weight:600;color:var(--muted)}
.brand-title{font-size:23px;font-weight:700;letter-spacing:-.02em;color:var(--ink)}
.nav{display:flex;gap:30px;font-size:18px;font-weight:700;letter-spacing:-.01em;color:#000}
.nav a{position:relative;padding:2px 0}
.nav a::after{content:'';position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.nav a:hover{color:var(--accent)}
.nav a:hover::after{transform:scaleX(1)}
.nav-cta{padding:12px 22px;font-size:16px;min-height:44px;background:#06CBFE}
.nav-cta:hover{background:#08879E}
@media (max-width:768px){.nav{display:none}}

/* hero — full-bleed image with gentle ken-burns drift, text as bare overlay (bottom scrim for legibility) */
.hero{position:relative;min-height:86vh;display:flex;align-items:flex-end;overflow:hidden}
.hero-media{position:absolute;inset:0;width:100%;height:100%}
.hero-media img{width:100%;height:100%;object-fit:cover;transform-origin:center;animation:heroDrift 22s ease-in-out infinite alternate}
@keyframes heroDrift{from{transform:scale(1.02) translate(0,0)}to{transform:scale(1.1) translate(-1%,-1%)}}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(10,22,35,.78) 0%,rgba(10,22,35,.4) 38%,transparent 68%);z-index:1}
.hero-overlay{position:relative;z-index:2;width:100%;padding:64px 0}
.hero-text{max-width:600px}
.hero-text::before{content:'';display:block;width:4px;height:48px;background:#fff;border-radius:2px;margin-bottom:18px}
.hero-eyebrow{font:700 15px/1 'Noto Sans KR';letter-spacing:.1em;color:#BFE0FF;margin:0 0 14px;text-shadow:0 1px 3px rgba(0,0,0,.35)}
.hero-text h1{font-size:clamp(34px,4.6vw,50px);line-height:1.2;letter-spacing:-.02em;margin:0 0 22px;text-align:left;color:#fff;text-shadow:0 1px 4px rgba(0,0,0,.35)}
.hero-lead{font-size:17px;line-height:1.8;color:rgba(255,255,255,.88);margin:0 0 22px;text-shadow:0 1px 3px rgba(0,0,0,.3)}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.hero-badges span{font-size:14px;font-weight:700;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.4);border-radius:999px;padding:8px 16px;color:#fff;backdrop-filter:blur(4px)}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-cta .btn-fill{background:#06CBFE}
.hero-cta .btn-fill:hover{background:#08879E}
.hero-cta .btn-line{border-color:rgba(255,255,255,.6);color:#fff}
.hero-cta .btn-line:hover{border-color:#fff;background:rgba(255,255,255,.1)}
@media (max-width:900px){
  .hero{min-height:78vh}
  .hero-text{max-width:none}
}
@media (prefers-reduced-motion:reduce){.hero-media img{animation:none}}

/* generic section head */
.sec-head{margin-bottom:32px}
.sec-label{font:700 13px/1 'Noto Sans KR';letter-spacing:.12em;color:var(--accent);text-transform:uppercase;margin:0 0 10px}
.sec-title{font:700 clamp(28px,3.4vw,38px)/1.25 'Noto Sans KR';letter-spacing:-.03em;margin:0;color:var(--ink)}
.sec-desc{font-size:17px;color:var(--sub);margin-top:12px}

/* service */
#service{padding:96px 0;background:#fff}
.svc-grid{counter-reset:svc;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:56px}
.svc-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px 24px;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.svc-card::before{counter-increment:svc;content:counter(svc,decimal-leading-zero);display:block;font:300 34px/1 'Noto Sans KR';color:var(--accent-line);margin-bottom:10px}
.svc-card:hover{border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.svc-card h3{font-size:20px;margin:0 0 10px;font-weight:700}
.svc-card p{font-size:16px;color:var(--sub);margin:0}
.process{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}
.process::before{content:'';position:absolute;top:37px;left:calc(12.5% + 15px);right:calc(12.5% + 15px);height:2px;background:var(--accent-line);z-index:0}
.process li{position:relative;z-index:1;list-style:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px}
.process li::before{counter-increment:step;content:counter(step);display:inline-flex;width:32px;height:32px;border-radius:50%;background:var(--accent);color:#fff;font-weight:700;align-items:center;justify-content:center;margin-bottom:12px;font-size:15px}
.process h4{margin:0 0 6px;font-size:17px}
.process p{margin:0;font-size:15px;color:var(--sub)}
@media (max-width:900px){.svc-grid,.process{grid-template-columns:repeat(2,1fr)}.process::before{display:none}}
@media (max-width:560px){.svc-grid,.process{grid-template-columns:1fr}}

/* works — two-col-stagger, forbidden: 3-col equal-height grid */
#works{padding:96px 0;background:var(--bg-soft)}
.works-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.works-grid figure{margin:0}
.works-grid figure:nth-child(even){transform:translateY(36px)}
.works-grid .frame{display:block;position:relative;aspect-ratio:4/3;border-radius:14px;overflow:hidden;box-shadow:var(--shadow-md)}
.works-grid .frame::after{content:'후기 보기';position:absolute;inset:auto 0 0 0;padding:10px 14px;font-size:13px;font-weight:700;color:#fff;background:linear-gradient(to top,rgba(10,22,35,.75),transparent);opacity:0;transition:opacity .2s var(--ease)}
.works-grid .frame:hover::after{opacity:1}
.works-grid .frame img{transition:transform .3s var(--ease)}
.works-grid .frame:hover img{transform:scale(1.04)}
.works-grid img{width:100%;height:100%;object-fit:cover}
.works-grid figcaption{display:inline-block;margin-top:10px;font-size:14px;font-weight:700;padding:6px 14px;border-radius:999px;background:var(--accent-soft);color:var(--accent-hover)}
@media (max-width:768px){.works-grid{grid-template-columns:1fr}.works-grid figure:nth-child(even){transform:none}}

/* faq — native details/summary, no JS needed */
#faq{padding:96px 0;background:#fff}
.faq-list{max-width:760px}
.faq-item{background:#fff;border:1px solid var(--line);border-left:3px solid transparent;border-radius:12px;margin-bottom:12px;padding:4px 22px;transition:background .2s var(--ease),border-color .2s var(--ease)}
.faq-item summary{cursor:pointer;padding:20px 0;font-weight:700;font-size:17px;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';float:right;color:var(--accent);font-weight:700}
.faq-item[open]{border-color:var(--accent);border-left-color:var(--accent);background:var(--accent-soft)}
.faq-item[open] summary::after{content:'–'}
.faq-item p{margin:0 0 18px;font-size:16px;color:var(--sub);line-height:1.8}

/* footer — compact single line, forbidden: 2-col grid CTA */
.site-footer{background:var(--footer-bg);color:#A8B8C8}
.foot-cta{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;padding:32px 28px;background:linear-gradient(135deg,#1B2838 0%,#2E4A62 100%)}
.foot-cta p{margin:0;font-size:18px;font-weight:700;color:#fff}
.foot-cta .btn-fill{background:#E5E9ED;color:var(--ink)}
.foot-cta .btn-fill:hover{background:#D3D9DF}
.foot-meta{padding:20px 28px;font-size:14px;color:#8394A3;line-height:1.9}
.foot-meta a{color:#8394A3}
.foot-meta a:hover{color:#fff}

/* regional pages — same full-bleed photo + ken-burns + white overlay as home hero, shorter */
.sub-hero{position:relative;overflow:hidden;min-height:42vh;display:flex;align-items:flex-end;text-align:left;padding:48px 0 40px;color:#fff}
.sub-hero::before{content:'';position:absolute;inset:0;background:url('/heatchangeas/img/case-02-after.jpg') center/cover;transform-origin:center;animation:heroDrift 22s ease-in-out infinite alternate;z-index:0}
.sub-hero::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(10,22,35,.8) 0%,rgba(10,22,35,.45) 40%,transparent 70%);z-index:1}
.sub-hero .wrap{position:relative;z-index:2;width:100%}
.breadcrumb{font-size:14px;color:rgba(255,255,255,.75);margin:0 0 14px}
.breadcrumb a{color:#fff;text-decoration:underline}
.sub-hero h1{font-size:clamp(30px,4.2vw,42px);margin:0 0 14px;letter-spacing:-.02em;color:#fff;text-align:left;text-shadow:0 1px 4px rgba(0,0,0,.35)}
.sub-hero .lead{font-size:17px;color:rgba(255,255,255,.88);max-width:640px;text-shadow:0 1px 3px rgba(0,0,0,.3)}
@media (prefers-reduced-motion:reduce){.sub-hero::before{animation:none}}

.dispatch-intro{padding:56px 0}
.dispatch-intro p{font-size:17px;line-height:1.9;color:var(--sub);margin:0 0 18px;max-width:760px}

#complexes{padding:56px 0;background:var(--bg-soft)}
.apt-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.apt-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 20px}
.apt-card .type{display:inline-block;font-size:12px;font-weight:700;color:var(--accent);background:var(--accent-soft);border-radius:999px;padding:4px 12px;margin-bottom:10px}
.apt-card h4{margin:0 0 6px;font-size:17px;color:var(--ink)}
.apt-card p{margin:0;font-size:15px;color:var(--sub)}
@media (max-width:900px){.apt-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.apt-grid{grid-template-columns:1fr}}

#dong-tags{padding:56px 0}
.dong-list{display:flex;flex-wrap:wrap;gap:10px}
.dong-list span{font-size:15px;background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:9px 18px}
.dong-list span.extra{border-color:var(--accent-line);background:var(--accent-soft);color:var(--accent-hover)}

#nearby-links{padding:56px 0 96px}
.nearby-list{display:flex;flex-wrap:wrap;gap:12px}
.nearby-list a{font-size:16px;font-weight:700;border:1px solid var(--line);border-radius:999px;padding:11px 20px;transition:border-color .2s var(--ease),color .2s var(--ease)}
.nearby-list a:hover{border-color:var(--accent);color:var(--accent)}

/* contact / reviews standalone page hero — same full-bleed photo + ken-burns + white overlay as home hero, shorter */
.page-hero{position:relative;overflow:hidden;min-height:42vh;display:flex;align-items:flex-end;text-align:left;padding:48px 0 40px;color:#fff}
.page-hero::before{content:'';position:absolute;inset:0;background:url('/heatchangeas/img/case-03-after.jpg') center/cover;transform-origin:center;animation:heroDrift 22s ease-in-out infinite alternate;z-index:0}
.page-hero::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(10,22,35,.8) 0%,rgba(10,22,35,.45) 40%,transparent 70%);z-index:1}
.page-hero .wrap{position:relative;z-index:2;width:100%}
.page-hero h1{font-size:clamp(32px,4.2vw,44px);margin:0 0 14px;color:#fff;text-align:left;text-shadow:0 1px 4px rgba(0,0,0,.35)}
.page-hero p{color:rgba(255,255,255,.88);font-size:17px;max-width:600px;text-shadow:0 1px 3px rgba(0,0,0,.3)}
@media (prefers-reduced-motion:reduce){.page-hero::before{animation:none}}
.contact-box{max-width:520px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:32px;margin:48px 0 80px;box-shadow:var(--shadow-sm)}
.contact-box .tel{display:block;font-size:clamp(34px,5vw,46px);font-weight:800;color:var(--accent);margin-bottom:16px}
.contact-box dl{margin:20px 0 0;font-size:16px;color:var(--sub)}
.contact-box dt{font-weight:700;color:var(--ink);margin-top:10px}
.about-body{max-width:640px;margin:0 0 80px;font-size:17px;line-height:1.9;color:var(--sub)}
.about-content{text-align:center}
.about-content .contact-box,.about-content .about-body{margin-left:auto;margin-right:auto}
.about-content .about-body{text-align:left}

/* reviews.html — static grid, no slide */
.rv-summary-static{margin-top:14px;font-size:16px;color:rgba(255,255,255,.88)}
.stars-big{color:#fff;letter-spacing:3px}
.reviews-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;padding:48px 0 80px}
.reviews-grid .rcard{background:#fff;border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:12px;padding:26px 24px;scroll-margin-top:96px;transition:box-shadow .3s var(--ease),background .3s var(--ease)}
.reviews-grid .rcard:target{background:var(--accent-soft);box-shadow:0 0 0 2px var(--accent)}
.reviews-grid .stars{color:var(--accent);letter-spacing:3px;margin:0 0 12px;font-size:15px}
.reviews-grid .text{font-size:16px;line-height:1.75;color:var(--sub);margin:0}
.reviews-grid .author{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-weight:700;font-size:15px;color:var(--ink)}
@media (max-width:700px){.reviews-grid{grid-template-columns:1fr}}

/* service-area / sitemap-page region blocks */
.area-block{margin-bottom:40px}
.area-block h2{font-size:20px;margin:0 0 14px;color:var(--ink)}
.area-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.area-card{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px 22px;box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.area-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--accent)}
.area-card h3{margin:0 0 8px;font-size:16px;font-weight:700;color:var(--ink)}
.area-card p{margin:0;font-size:14px;color:var(--sub);line-height:1.6}
@media (max-width:900px){.area-cards{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.area-cards{grid-template-columns:1fr}}

/* 시공사례 자동생성 페이지 — 실사진이 없을 때 쓰는 카테고리 배경 히어로 */
.case-hero{position:relative;overflow:hidden;min-height:42vh;display:flex;align-items:flex-end;text-align:left;padding:48px 0 40px;color:#fff}
.case-hero::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,var(--cat-a,#1B2838) 0%,var(--cat-b,#2E6B96) 100%);z-index:0}
.case-hero::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(10,22,35,.35) 0%,transparent 60%);z-index:1}
.case-hero .wrap{position:relative;z-index:2;width:100%}
.case-hero h1{font-size:clamp(28px,4vw,40px);margin:0 0 14px;letter-spacing:-.02em;color:#fff;text-align:left;text-shadow:0 1px 4px rgba(0,0,0,.35)}
.case-hero .lead{font-size:16px;color:rgba(255,255,255,.88);max-width:640px;text-shadow:0 1px 3px rgba(0,0,0,.3)}
.case-cat-badge{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.4);border-radius:999px;padding:8px 16px;color:#fff;margin-bottom:16px;backdrop-filter:blur(4px)}

.case-detail{padding:56px 0}
.case-detail h2.sec-title{margin-bottom:18px}
.case-detail p{font-size:16px;line-height:1.9;color:var(--sub);margin:0 0 16px;max-width:760px}
.case-points{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:28px 0 0;max-width:760px}
.case-points li{list-style:none;background:var(--bg-soft);border-left:3px solid var(--accent);border-radius:8px;padding:14px 16px;font-size:15px;color:var(--ink)}
@media (max-width:700px){.case-points{grid-template-columns:1fr}}