:root{--ink:#1d2a2f;--accent:#a8552f;--paper:#f5f2ec;--white:#fff;--line:#d9d3c7;--muted:#5d6a6e;--serif:"Noto Serif KR",serif;--sans:"Pretendard","Apple SD Gothic Neo","Malgun Gothic",sans-serif;--w:1160px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--white);line-height:1.75;letter-spacing:-.005em;font-size:16px;-webkit-text-size-adjust:100%}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
.wrap{max-width:var(--w);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:99}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.35;letter-spacing:-.01em;margin:0}
.label{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 12px;font-weight:600}
/* header */
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line)}
.site-header__in{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--serif);font-size:20px;font-weight:600}
.site-nav{display:flex;align-items:center;gap:26px;font-size:15px}
.site-nav a{text-decoration:none}.site-nav a:not(.btn):hover{color:var(--accent)}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:14px 28px;text-decoration:none;font-weight:600;border:1px solid var(--accent);border-radius:0;transition:background .2s}
.btn:hover{background:var(--ink);border-color:var(--ink)}
.btn--sm{padding:8px 16px;font-size:14px}
.btn--line{background:transparent;color:var(--ink);border-color:var(--ink)}.btn--line:hover{color:#fff}
/* hero */
.hero{background:var(--paper)}
.hero__in{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:72px 24px}
.hero h1{font-size:clamp(38px,5vw,60px);margin-bottom:22px}
.hero__lead{font-size:18px;margin:0}
.hero__img img{width:100%;height:520px;object-fit:cover}
.hero__meta{display:flex;gap:28px;flex-wrap:wrap;margin:26px 0 0;padding:0;list-style:none;font-size:14px;color:var(--muted)}
.hero__meta li{border-top:2px solid var(--ink);padding-top:8px}
.hero__meta b{display:block;font-size:20px;color:var(--ink);font-family:var(--serif)}
/* sections */
.section{padding:88px 0}.section--alt{background:var(--paper)}
.section__title{font-size:clamp(26px,3.2vw,38px);margin-bottom:20px}
.section__lead{max-width:780px;color:var(--muted);margin:0 0 36px}
.statement{padding:88px 0;text-align:center}
.statement p.big{font-family:var(--serif);font-size:clamp(22px,2.8vw,32px);line-height:1.6;max-width:880px;margin:0 auto 20px}
.statement p{max-width:760px;margin:0 auto 14px;color:var(--muted)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split img{width:100%;height:480px;object-fit:cover}
.split ul{padding-left:20px;margin:0 0 24px}.split li{margin-bottom:8px}
.grid{display:grid;gap:28px}.grid--3{grid-template-columns:repeat(3,1fr)}.grid--2{grid-template-columns:repeat(2,1fr)}
.more{text-align:center;margin-top:36px}
/* gallery mosaic */
.mosaic{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.mosaic figure{margin:0;position:relative;overflow:hidden}
.mosaic img{width:100%;height:300px;object-fit:cover}
.mosaic figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 16px 12px;background:linear-gradient(transparent,rgba(29,42,47,.82));color:#fff;font-size:15px}
/* cards */
.card{display:block;text-decoration:none;background:#fff;border:1px solid var(--line);transition:box-shadow .2s}
.card:hover{box-shadow:0 8px 24px rgba(29,42,47,.12)}
.card__img img{width:100%;aspect-ratio:4/3;object-fit:cover}
.card__body{display:block;padding:18px 20px 22px}.card__body strong{display:block;font-family:var(--serif);font-size:18px;margin-bottom:6px}
.card__body span{color:var(--muted);font-size:14px}
/* table */
.table-wrap{overflow-x:auto;margin:20px 0 28px;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;font-size:15px}
table:has(thead th:nth-child(3)){min-width:560px}
th,td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
th{background:var(--paper);font-weight:600}
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.steps li{border-top:2px solid var(--ink);padding-top:14px}
.steps li:before{content:"";display:block;width:28px;height:4px;background:var(--accent);margin-bottom:12px}
.steps b{display:block;margin-bottom:4px}
/* faq */
.faq{max-width:860px}
.faq__item{border-bottom:1px solid var(--line)}
.faq__item summary{cursor:pointer;list-style:none;padding:20px 40px 20px 0;position:relative}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary h3{font-size:18px;font-family:var(--sans);font-weight:600;display:inline}
.faq__item summary:after{content:"+";position:absolute;right:6px;top:16px;font-size:26px;color:var(--accent)}
.faq__item[open] summary:after{content:"\2212"}
.faq__a{padding:0 0 22px;color:#38464b}.faq__a p{margin:0}
/* cta */
.cta{background:var(--ink);color:#fff;text-align:center;padding:80px 0}
.cta h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px}.cta p{max-width:640px;margin:0 auto 28px;color:#cdd5d7}
.cta .btn{background:#fff;color:var(--ink);border-color:#fff}.cta .btn:hover{background:var(--accent);border-color:var(--accent);color:#fff}
/* article pages */
.page-head{background:var(--paper);padding:56px 0 48px}
.page-head h1{font-size:clamp(30px,4vw,46px);margin-bottom:18px}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:18px}.crumbs a{text-decoration:none}.crumbs a:hover{color:var(--accent)}
.answer{font-size:18px;max-width:820px;margin:0}
.article{max-width:820px;margin:0 auto;padding:56px 24px 24px}
.article h2{font-size:clamp(22px,2.6vw,30px);margin:48px 0 16px}
.article h2:first-child{margin-top:0}
.article p{margin:0 0 18px}
.article ul,.article ol{padding-left:22px;margin:0 0 20px}.article li{margin-bottom:6px}
.article figure{margin:28px 0}
.article figure img{width:100%;height:auto;max-height:640px;object-fit:contain;background:var(--paper)}
.article figcaption{font-size:14px;color:var(--muted);margin-top:8px}
.quote{border-left:3px solid var(--accent);background:var(--paper);padding:20px 24px;margin:32px 0;font-family:var(--serif)}
.quote cite{display:block;font-family:var(--sans);font-size:14px;color:var(--muted);margin-top:8px;font-style:normal}
.updated{font-size:14px;color:var(--muted);margin:32px 0 0}
.inline-link{display:block;border:1px solid var(--line);padding:16px 20px;margin:28px 0;text-decoration:none;font-weight:600}
.inline-link:hover{border-color:var(--accent);color:var(--accent)}
/* consultation */
.step-box{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:24px 0}
.step-box div{border-top:2px solid var(--ink);padding-top:14px}.step-box b{font-family:var(--serif);display:block;margin-bottom:4px}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0}
/* footer */
.site-footer{background:#141d21;color:#aeb8bb;padding:56px 0 100px;font-size:14px}
.site-footer__nav{display:flex;gap:10px 22px;flex-wrap:wrap;margin-bottom:24px}.site-footer__nav a{color:#fff;text-decoration:none}
.site-footer address{font-style:normal}.site-footer address p{margin:0 0 4px}
.site-footer__copy{margin:20px 0 0}
.floating{position:fixed;right:20px;bottom:20px;z-index:30;background:var(--accent);color:#fff;text-decoration:none;font-weight:600;padding:14px 22px;box-shadow:0 6px 20px rgba(0,0,0,.25)}
.floating:hover{background:var(--ink)}
@media (max-width:900px){
  .hero__in,.split{grid-template-columns:1fr;gap:32px;padding-top:40px}
  .hero__img img,.split img{height:320px}
  .grid--3,.mosaic{grid-template-columns:1fr}.grid--2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}.step-box{grid-template-columns:1fr}
  .site-nav a:not(.btn){display:none}
  .section{padding:60px 0}.statement{padding:60px 0}
  .mosaic img{height:240px}
}


/* ---- 디자인 개선 ---- */
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.btn{text-align:center;line-height:1.3;min-height:48px;display:inline-flex;align-items:center;justify-content:center}
.btn--sm{min-height:40px}
.hero{border-bottom:1px solid var(--line)}
.hero__img{position:relative}.hero__img:before{content:"";position:absolute;left:-14px;bottom:-14px;width:60%;height:60%;border:2px solid var(--accent);z-index:0}
.hero__img img{position:relative;z-index:1}
/* 섹션 구분: 제목 머리 + 구분선 */
.section{border-top:1px solid var(--line)}
.section--alt{border-bottom:1px solid var(--line)}
.section__head{margin-bottom:40px}
.section__head .section__lead{margin-bottom:0}
.section__title{position:relative;padding-bottom:18px}
.section__title:after{content:"";position:absolute;left:0;bottom:0;width:48px;height:3px;background:var(--accent)}
.cta .section__title:after,.statement .section__title:after{left:50%;transform:translateX(-50%)}
/* h3 구분 */
h3{font-size:19px}
.subhead{margin:44px 0 20px;padding-left:14px;border-left:4px solid var(--accent);font-family:var(--sans);font-weight:700}
.article h3{margin:28px 0 12px;padding-left:12px;border-left:3px solid var(--accent);font-family:var(--sans);font-weight:700;font-size:18px}
.article h2{margin:64px 0 18px;padding-top:36px;border-top:1px solid var(--line);position:relative}
.article h2:before{content:"";position:absolute;left:0;top:-2px;width:56px;height:3px;background:var(--accent)}
.article h2:first-child{margin-top:0;padding-top:0;border-top:0}.article h2:first-child:before{display:none}
.faq__item summary h3{padding:0;border:0;margin:0;font-size:17px;font-family:var(--sans)}
.faq__item summary{padding:20px 44px 20px 0}.faq__item summary:hover h3{color:var(--accent)}
.faq__item:first-child{border-top:1px solid var(--line)}
/* 증상 섹션 */
.symptoms{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.symptoms li{background:var(--paper);border-top:3px solid var(--accent);padding:24px 22px 26px}
.symptoms h3{font-family:var(--sans);font-weight:700;font-size:18px;line-height:1.45;margin-bottom:8px}
.symptoms p{margin:0;color:var(--muted);font-size:15px}
.who{margin:32px 0 8px;padding:18px 22px;border:1px solid var(--line);border-left:4px solid var(--ink)}
.note{margin:8px 0 0;color:var(--muted);font-size:15px}
/* 카드 */
.card{height:100%}
.card__img{overflow:hidden;display:block}
.card__img img{transition:transform .4s}.card:hover .card__img img{transform:scale(1.04)}
.card:hover{transform:translateY(-3px)}
.card{transition:box-shadow .2s,transform .2s}
.card__body:after{content:"자세히 보기 \2192";display:block;margin-top:12px;font-size:13px;font-weight:600;color:var(--accent)}
.card__body em{display:block;font-style:normal;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--accent);margin-bottom:6px}
.card--row{display:grid;grid-template-columns:260px 1fr;margin:36px 0;height:auto}
.card--row .card__img img{height:100%;aspect-ratio:4/3}
.card--row .card__body{align-self:center}
ol{list-style:none}
.article ol,ol.steps{padding-left:0}
.article ol li{position:relative;padding-left:22px}
.article ol li:before{content:"";position:absolute;left:0;top:.7em;width:8px;height:8px;background:var(--accent)}
.article ul li::marker{color:var(--accent)}
.related-sec{border-top:1px solid var(--line)}
.step-box div{background:var(--paper);border-top:3px solid var(--accent);padding:20px}
.cta-row .btn{flex:0 1 auto}
.cta{border-top:4px solid var(--accent)}
/* 모바일 */
@media (max-width:900px){
  .symptoms{grid-template-columns:1fr 1fr}
  .card--row{grid-template-columns:1fr}.card--row .card__img img{height:auto}
  .hero__img:before{display:none}
  .section__head{margin-bottom:28px}
  .article h2{margin-top:48px;padding-top:28px}
}
@media (max-width:600px){
  body{font-size:15.5px}
  .site-header__in{height:56px}.brand{font-size:18px}
  .hero__in{padding:32px 18px 40px;gap:24px}
  .hero__lead{font-size:16px}
  .hero .btn,.cta .btn,.more .btn,.split .btn,.cta-row .btn,.page-head .btn,.btn--block{display:flex;width:100%;min-height:52px;font-size:16px}
  .cta-row{flex-direction:column;gap:10px}
  .hero__meta{gap:14px}.hero__meta li{flex:1 1 30%}
  .symptoms{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .section{padding:48px 0}
  .cta{padding:56px 0}
  .table-wrap{margin-right:-18px;padding-right:18px}
  .floating{left:0;right:0;bottom:0;padding:16px 18px calc(16px + env(safe-area-inset-bottom));text-align:center;box-shadow:0 -4px 16px rgba(0,0,0,.18);font-size:16px}
  .wrap{padding:0 18px}.article{padding:40px 18px 16px}
  .site-footer{padding-bottom:110px}
}

@media (max-width:600px){
  table{font-size:14px}th,td{padding:10px 12px}
  tbody th[scope=row]{min-width:96px}
  .table-wrap:has(thead th:nth-child(3)):before{content:"\2194  좌우로 밀어서 확인";display:block;font-size:12px;color:var(--accent);margin-bottom:6px;position:sticky;left:0}
}
/* 모바일 가독성 */
body{word-break:keep-all;overflow-wrap:break-word}
th,td{overflow-wrap:anywhere}
@media (max-width:600px){
  .hero__meta{display:grid;grid-template-columns:1fr;gap:12px;margin-top:22px}
  .hero__meta li{flex:none}
}

/* 시공사례 카드: 이전|이후 좌우 비교 */
.case-card{display:block;text-decoration:none;background:#fff;border:1px solid var(--line);transition:box-shadow .2s,transform .2s}
.case-card:hover{box-shadow:0 8px 24px rgba(29,42,47,.12);transform:translateY(-3px)}
.cmp{display:grid;grid-template-columns:1fr 1fr;gap:3px;background:#fff;position:relative}
.cmp figure{margin:0;position:relative;overflow:hidden}
.cmp img{width:100%;aspect-ratio:4/3;object-fit:cover;object-position:center 40%;transition:transform .4s}
.case-card:hover .cmp img{transform:scale(1.04)}
.cmp figcaption{position:absolute;left:0;top:0;background:var(--ink);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;letter-spacing:.1em}
.cmp figure+figure figcaption{left:auto;right:0;background:var(--accent)}
.cmp:after{content:"\2192";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:36px;height:36px;border-radius:50%;background:#fff;color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:18px;box-shadow:0 2px 8px rgba(0,0,0,.25)}
.case-body{padding:20px 22px 24px;border-top:3px solid var(--accent)}
.case-tag{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--accent);margin-bottom:8px}
.case-body h3{font-size:19px;margin:0 0 6px}
.case-body p{margin:0;color:var(--muted);font-size:14.5px}
.case-card.is-hidden{display:none}
@media (min-width:901px){[data-cases]{grid-template-columns:repeat(2,1fr);gap:32px}.case-body h3{font-size:21px}}