/* ===== 디자인 토큰 ===== */
:root{
  --green:#1A472A;
  --green-dark:#0f2e1a;
  --green-light:#eaf2ec;
  --orange:#FF6B35;
  --orange-dark:#e2551f;
  --bg:#faf9f6;
  --text:#222;
  --muted:#666;
  --border:#e5e1da;
  --white:#fff;
  --radius:14px;
  --shadow:0 8px 24px rgba(0,0,0,.08);
  --maxw:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans KR","Roboto",-apple-system,BlinkMacSystemFont,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.3}
p{margin:0 0 1em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.badge{display:inline-block;background:var(--orange);color:#fff;font-size:.78rem;font-weight:700;padding:4px 12px;border-radius:999px;margin-bottom:12px}

/* ===== 버튼 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:10px;font-weight:700;font-size:1rem;cursor:pointer;border:2px solid transparent;transition:.2s}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-dark)}
.btn-outline{background:transparent;border-color:#fff;color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.15)}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{background:var(--green-dark)}
.btn-block{width:100%}

/* ===== 헤더 ===== */
.site-header{position:sticky;top:0;z-index:100;background:var(--white);border-bottom:1px solid var(--border)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:76px}
.logo{font-size:1.3rem;font-weight:900;color:var(--green)}
.logo span{color:var(--orange)}
.main-nav ul{display:flex;gap:28px}
.main-nav a{font-weight:600;font-size:.95rem;padding:8px 0;border-bottom:2px solid transparent}
.main-nav a:hover,.main-nav a.is-active{color:var(--green);border-color:var(--orange)}
.header-cta{display:flex;align-items:center;gap:14px}
.header-phone{font-weight:800;color:var(--green)}
.nav-toggle{display:none;background:none;border:0;font-size:1.6rem;cursor:pointer;color:var(--green)}
@media(max-width:900px){
  .main-nav{position:fixed;inset:76px 0 0 0;background:#fff;transform:translateX(100%);transition:.25s;overflow-y:auto}
  .main-nav.is-open{transform:translateX(0)}
  .main-nav ul{flex-direction:column;padding:24px 20px;gap:0}
  .main-nav a{display:block;padding:14px 0;border-bottom:1px solid var(--border)}
  .nav-toggle{display:block}
  .header-phone{display:none}
}

/* ===== 히어로(L1) ===== */
.hero{display:grid;grid-template-columns:1.4fr 1fr;min-height:600px;background:var(--green)}
.hero-visual{position:relative;overflow:hidden}
.hero-info{background:var(--green-dark);color:#fff;display:flex;flex-direction:column;justify-content:center;padding:60px 48px}
.hero-info h1{font-size:2.2rem;font-weight:900}
.hero-info p{color:#d7e4da;font-size:1.05rem}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}
@media(max-width:900px){.hero{grid-template-columns:1fr}.hero-visual{min-height:280px}.hero-info{padding:36px 24px}}

/* ===== 자리표시 이미지(실사진 교체 전 임시) ===== */
.placeholder-img{
  background:linear-gradient(135deg,var(--green) 0%,var(--green-dark) 100%);
  color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:8px;min-height:220px;border-radius:var(--radius);text-align:center;padding:20px;
}
.placeholder-img .icon{font-size:2.2rem}
.placeholder-img span{font-size:.85rem;opacity:.85}
.hero-visual .placeholder-img{border-radius:0;min-height:100%;position:absolute;inset:0}

/* ===== 실사진 박스 ===== */
.img-box{position:relative;overflow:hidden;border-radius:var(--radius);background:var(--green-light)}
.img-box img{width:100%;height:100%;object-fit:cover;display:block}
.img-box.ratio-4-3{aspect-ratio:4/3}
.img-box.ratio-3-4{aspect-ratio:3/4}
.hero-visual .img-box{position:absolute;inset:0;border-radius:0}
.photo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}
.photo-cap{margin-top:8px;font-size:.82rem;color:var(--muted);text-align:center}

/* ===== 섹션 공통 ===== */
.section{padding:72px 0}
.section-alt{background:var(--white)}
.section-head{text-align:center;max-width:640px;margin:0 auto 44px}
.section-head h2{font-size:1.9rem;font-weight:900;color:var(--green)}
.section-head p{color:var(--muted)}

/* ===== 카드 그리드 ===== */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.card-grid.card-grid-row{grid-template-columns:repeat(5,1fr)}
@media(max-width:900px){.card-grid.card-grid-row{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.card-grid.card-grid-row{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.card h3{color:var(--green);font-size:1.2rem}
.card .price{color:var(--orange);font-weight:900;font-size:1.4rem;margin:8px 0}

/* 캐러셀 */
.carousel{overflow:hidden;position:relative}
.carousel + .carousel{margin-top:20px}
.carousel-track{display:flex;gap:20px;animation:scroll 30s linear infinite}
.carousel-track.reverse{animation-direction:reverse}
.carousel:hover .carousel-track{animation-play-state:paused}
.carousel-item{flex:0 0 220px}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ===== 비교 테이블(L2) ===== */
.compare-wrap{overflow-x:auto;border-radius:var(--radius);box-shadow:var(--shadow)}
table.compare{width:100%;border-collapse:collapse;background:#fff;min-width:640px}
table.compare th,table.compare td{padding:16px 18px;border-bottom:1px solid var(--border);text-align:center}
table.compare thead th{background:var(--green);color:#fff;font-size:1.05rem}
table.compare td:first-child,table.compare th:first-child{text-align:left;font-weight:700;background:var(--green-light)}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare .rec{position:relative}
table.compare .rec::before{content:"추천";position:absolute;top:-1px;left:50%;transform:translate(-50%,-100%);background:var(--orange);color:#fff;font-size:.7rem;font-weight:700;padding:2px 10px;border-radius:6px 6px 0 0}

/* ===== 3분류 컬러 카드(L6) ===== */
.compare-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.ccard{border-radius:var(--radius);padding:32px 26px;color:#fff;box-shadow:var(--shadow);transition:.25s}
.ccard:hover{transform:translateY(-6px)}
.ccard.steel{background:linear-gradient(160deg,#2b5876,#1a3a52)}
.ccard.alu{background:linear-gradient(160deg,#3a7d5c,#1A472A)}
.ccard.pvc{background:linear-gradient(160deg,#d9822b,#b25a12)}
.ccard h3{color:#fff;font-size:1.3rem}
.ccard ul{margin:16px 0;display:flex;flex-direction:column;gap:8px}
.ccard ul li::before{content:"✓ ";font-weight:900}

/* ===== 타임라인(L3) ===== */
.timeline{position:relative;max-width:760px;margin:0 auto}
.timeline::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:3px;background:var(--border);transform:translateX(-50%)}
.tl-step{display:grid;grid-template-columns:1fr 40px 1fr;gap:0;margin-bottom:36px;align-items:start}
.tl-step .tl-num{grid-column:2;width:40px;height:40px;border-radius:50%;background:var(--orange);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900;z-index:1}
.tl-step .tl-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow)}
.tl-step:nth-child(odd) .tl-card{grid-column:1}
.tl-step:nth-child(even) .tl-card{grid-column:3}
@media(max-width:700px){
  .timeline::before{left:20px}
  .tl-step{grid-template-columns:40px 1fr;gap:16px}
  .tl-step .tl-num{grid-column:1}
  .tl-step:nth-child(odd) .tl-card,.tl-step:nth-child(even) .tl-card{grid-column:2}
}

/* ===== 갤러리 / Before-After(L5) ===== */
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.ba-slider{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/3;cursor:ew-resize;user-select:none}
.ba-slider .ba-after{position:absolute;inset:0}
.ba-slider .ba-before{position:absolute;inset:0;overflow:hidden;width:50%}
.ba-slider .ba-before .placeholder-img,.ba-slider .ba-after .placeholder-img{position:absolute;inset:0;border-radius:0;width:auto}
.ba-slider .ba-before .placeholder-img{width:200%}
.ba-handle{position:absolute;top:0;bottom:0;left:50%;width:4px;background:#fff;transform:translateX(-2px);box-shadow:0 0 8px rgba(0,0,0,.4)}
.ba-handle::after{content:"◀▶";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#fff;color:var(--green);width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.7rem}
.ba-label{position:absolute;top:10px;background:rgba(0,0,0,.55);color:#fff;font-size:.75rem;font-weight:700;padding:3px 10px;border-radius:6px}
.ba-label.before-l{left:10px}.ba-label.after-l{right:10px}
.ba-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ba-grid-photos{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.ba-pair{display:grid;grid-template-columns:1fr 1fr;gap:6px}
@media(max-width:900px){.ba-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.ba-grid{grid-template-columns:1fr}.ba-grid-photos{grid-template-columns:1fr}}

/* ===== 이미지/텍스트 교대(L9) ===== */
.alt-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:64px}
.alt-row:nth-child(even){direction:rtl}
.alt-row:nth-child(even) > *{direction:ltr}
@media(max-width:800px){.alt-row{grid-template-columns:1fr}.alt-row:nth-child(even){direction:ltr}}

/* ===== 후기 ===== */
.testimonial-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.testimonial{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.testimonial .stars{color:var(--orange);margin-bottom:8px}
.testimonial .who{margin-top:12px;font-weight:700;color:var(--green);font-size:.85rem}

/* ===== FAQ ===== */
.faq-item{border-bottom:1px solid var(--border)}
.faq-q{width:100%;text-align:left;background:none;border:0;padding:20px 4px;font-weight:700;font-size:1.02rem;cursor:pointer;display:flex;justify-content:space-between;color:var(--green)}
.faq-a{max-height:0;overflow:hidden;transition:.25s;color:var(--muted);padding:0 4px}
.faq-item.is-open .faq-a{max-height:300px;padding-bottom:18px}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg)}
.faq-q .plus{transition:.2s;font-size:1.3rem;color:var(--orange)}

/* ===== 상담/비용 폼(L10) ===== */
.consult-layout{display:grid;grid-template-columns:1fr 1fr;gap:0;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.consult-form-panel{background:#fff;padding:44px}
.consult-info-panel{background:var(--green);color:#fff;padding:44px}
.consult-info-panel h3{color:#fff}
.consult-info-panel .ci-item{display:flex;gap:12px;margin-bottom:20px}
.consult-info-panel .ci-item .icon{font-size:1.3rem}
@media(max-width:860px){.consult-layout{grid-template-columns:1fr}}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-weight:700;margin-bottom:6px;font-size:.9rem}
.form-row input,.form-row select,.form-row textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:8px;font-size:.95rem;font-family:inherit}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{outline:2px solid var(--orange);border-color:var(--orange)}
.form-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.hp-field{position:absolute;left:-9999px}
.form-msg{padding:12px 16px;border-radius:8px;margin-bottom:16px;font-weight:600}
.form-msg.success{background:#e6f4ea;color:#1A472A}
.form-msg.error{background:#fdeaea;color:#a12626}

/* ===== 비용 계산기 ===== */
.calc-box{background:var(--green-light);border-radius:var(--radius);padding:28px;margin-top:24px}
.calc-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:12px}
.calc-total{display:flex;justify-content:space-between;font-size:1.3rem;font-weight:900;color:var(--green);border-top:2px dashed var(--border);padding-top:14px;margin-top:6px}

/* ===== 통계 바 ===== */
.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:24px;text-align:center}
.stat-row .num{font-size:2.1rem;font-weight:900;color:var(--orange)}
.stat-row .lab{color:var(--muted);font-size:.9rem}

/* ===== 사이트맵 페이지 ===== */
.sitemap-cats{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px}
.sitemap-cats .card h3{border-bottom:2px solid var(--orange);padding-bottom:10px}
.sitemap-cats .card li{padding:8px 0;border-bottom:1px solid var(--border)}
.sitemap-cats .card li a:hover{color:var(--orange)}

/* ===== 푸터 ===== */
.site-footer{background:var(--green-dark);color:#cfe0d5;padding:48px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr;gap:32px;margin-bottom:32px}
.site-footer h4{color:#fff;font-size:1rem}
.site-footer a:hover{color:var(--orange)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.15);padding-top:20px;font-size:.82rem;color:#9fb5a8;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
@media(max-width:700px){
	.site-footer{padding:32px 0 16px}
	.footer-grid{grid-template-columns:1fr;gap:20px;margin-bottom:20px}
	.footer-grid ul{display:flex;flex-wrap:wrap;gap:4px 16px}
	.footer-bottom{padding-top:14px}
	.footer-bottom span:last-child{display:none}
}

/* ===== 플로팅 전화 버튼 ===== */
.float-call{position:fixed;right:20px;bottom:20px;z-index:200;background:var(--orange);color:#fff;width:60px;height:60px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;box-shadow:0 6px 20px rgba(0,0,0,.25)}

/* 반응형 공통 */
@media(max-width:700px){
  .section{padding:48px 0}
  .section-head h2{font-size:1.5rem}
  .consult-form-panel,.consult-info-panel{padding:28px 22px}
  .form-grid-2{grid-template-columns:1fr}
}