:root{--ink:#12262d;--teal:#1f6f7c;--teal-d:#154f59;--teal-l:#e6f1f3;--sand:#f5f2ec;--line:#dcd6ca;--mute:#566569;--w:1180px;--serif:"Noto Serif KR",serif}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"Pretendard","Apple SD Gothic Neo","Malgun Gothic",sans-serif;color:var(--ink);background:#fff;line-height:1.8;letter-spacing:-.005em;font-size:16px;word-break:keep-all;padding-bottom:0}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
.wrap{max-width:var(--w);margin:0 auto;padding:0 24px}
.label{font-size:12px;letter-spacing:.16em;color:var(--teal);font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.label:before{content:"";width:28px;height:2px;background:var(--teal)}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.4;letter-spacing:-.01em}
h1{font-size:clamp(34px,6vw,60px)}
h2{font-size:clamp(24px,3.4vw,34px);margin-bottom:20px}
h3{font-size:19px;margin-bottom:8px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:14px 30px;border:1px solid var(--teal);background:var(--teal);color:#fff;font-weight:600;font-size:15px;letter-spacing:.02em;border-radius:0;cursor:pointer;transition:background .2s,color .2s}
.btn:hover{background:var(--teal-d)}
.btn--ghost{background:#fff;color:var(--teal)}
.btn--ghost:hover{background:var(--teal);color:#fff}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(6px)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{font-family:var(--serif);font-size:18px;display:flex;align-items:center;gap:10px}
.brand img{width:26px;height:26px}
.site-nav ul{display:flex;gap:28px;font-size:14px;letter-spacing:.03em;align-items:center}
.site-nav a:hover{color:var(--teal)}
.site-nav .btn{min-height:40px;padding:8px 18px;color:#fff;font-size:13px}
.nav-toggle{display:none}
/* hero */
.hero-intro{padding:96px 0 56px;background:linear-gradient(180deg,var(--teal-l),#fff 85%)}
.hero-intro p.lead{max-width:660px;margin:26px 0 34px;font-size:18px;color:var(--mute)}
.hero-intro .cta-row{display:flex;gap:12px;flex-wrap:wrap}
.hero-image img{width:100%;max-height:560px;object-fit:cover;object-position:center 72%}
.hero-image figcaption{font-size:13px;color:var(--mute);padding:10px 24px;max-width:var(--w);margin:0 auto}
.facts{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);margin-top:52px}
.facts li{padding:22px 0;font-size:14px;color:var(--mute)}
.facts b{display:block;font-family:var(--serif);font-size:22px;color:var(--ink);font-weight:500}
/* sections */
.section{padding:92px 0;border-top:1px solid var(--line)}
.section--alt{background:var(--sand)}
.sec-head{margin-bottom:46px}
.sec-head h2{margin-bottom:14px}
.sec-head p{color:var(--mute);max-width:640px}
/* symptoms + photo cards */
.sym-grid,.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.sym-card,.rel-card,.inline-card{border:1px solid var(--line);background:#fff;display:block;transition:border-color .2s,transform .2s,box-shadow .2s}
.sym-card:hover,.rel-card:hover,.inline-card:hover{border-color:var(--teal);transform:translateY(-3px);box-shadow:0 10px 24px rgba(18,38,45,.09)}
.sym-card img,.rel-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.sym-card div,.rel-card div{padding:18px 20px 22px}
.sym-card b,.rel-card b{font-family:var(--serif);font-weight:500;font-size:18px;line-height:1.45;display:block;margin-bottom:6px}
.sym-card span,.rel-card span{font-size:14px;color:var(--mute);display:block}
.sym-card em,.rel-card em{font-style:normal;font-size:13px;font-weight:700;color:var(--teal);display:inline-block;margin-top:10px}
/* service split */
.feature-split .wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.feature-split ul li{padding:16px 0;border-bottom:1px solid var(--line)}
.feature-split ul li b{display:block;font-family:var(--serif);font-weight:500;font-size:18px;margin-bottom:2px}
/* cases */
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.case-card{border:1px solid var(--line);background:#fff;transition:border-color .2s,box-shadow .2s}
.case-card:hover{border-color:var(--teal);box-shadow:0 10px 24px rgba(18,38,45,.09)}
.case-card.is-hidden{display:none}
.case-card a{display:flex;flex-direction:column;height:100%}
.cmp{display:grid;grid-template-columns:1fr 1fr}
.cmp figure{position:relative}
.cmp img{width:100%;aspect-ratio:4/3;object-fit:cover}
.cmp span{position:absolute;left:0;top:0;background:var(--ink);color:#fff;font-size:11px;letter-spacing:.12em;padding:3px 9px}
.cmp figure+figure span{background:var(--teal)}
.case-body{padding:20px 22px 24px}
.case-body .meta{font-size:12px;letter-spacing:.1em;color:var(--teal);font-weight:700}
.case-body h3{font-size:18px;margin:6px 0 8px}
.case-body p{font-size:14px;color:var(--mute)}
.more-row{text-align:center;margin-top:44px}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gallery figure{position:relative;overflow:hidden}
.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:28px 14px 12px;color:#fff;font-size:14px;background:linear-gradient(transparent,rgba(10,25,30,.8))}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.steps li{border-top:3px solid var(--teal);padding:18px 4px 0}
.steps p{font-size:14px;color:var(--mute)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;padding:22px 44px 22px 0;font-family:var(--serif);font-size:18px;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";position:absolute;right:6px;top:18px;font-size:26px;color:var(--teal)}
.faq details[open] summary:after{content:"\2212"}
.faq details p{padding:0 0 24px;color:var(--mute);max-width:780px}
.cta{background:var(--teal-d);color:#fff;text-align:center;padding:84px 0;border-top:0}
.cta h2{color:#fff}
.cta p{opacity:.88;margin-bottom:30px}
.cta .btn{background:#fff;color:var(--teal-d);border-color:#fff}
.site-footer{background:#0c1c21;color:#a9b8bc;padding:56px 0 100px;font-size:13px;line-height:1.95}
.site-footer__nav{display:flex;gap:10px 24px;flex-wrap:wrap;margin-bottom:24px;font-size:14px;color:#fff}
.site-footer__nav a:hover{color:#7fd0dc}
.floating{position:fixed;right:18px;bottom:18px;z-index:30}
.floating .btn{box-shadow:0 8px 22px rgba(0,0,0,.22)}
/* sub pages */
.page-hero{padding:68px 0 34px;background:linear-gradient(180deg,var(--teal-l),#fff);border-bottom:1px solid var(--line)}
.crumbs{font-size:12px;color:var(--mute);margin-bottom:18px;letter-spacing:.04em}
.crumbs a:hover{color:var(--teal)}
.answer{font-size:18px;max-width:780px;margin-top:22px;color:#2c3f45}
.article{max-width:820px;margin:0 auto;padding:44px 24px 24px}
.article h2{margin-top:60px;padding-top:30px;border-top:1px solid var(--line);position:relative}
.article h2:before{content:"";position:absolute;left:0;top:-1px;width:56px;height:3px;background:var(--teal)}
.article h2:first-child{margin-top:0;padding-top:0;border:0}
.article h2:first-child:before{display:none}
.article h3{margin-top:22px}
.article p{margin-bottom:18px}
.article ul.list{margin:0 0 20px;padding:0}
.article ul.list li{position:relative;padding:3px 0 3px 22px;margin-bottom:4px}
.article ul.list li:before{content:"";position:absolute;left:4px;top:15px;width:7px;height:7px;background:var(--teal)}
.article p a:not(.btn),.article li a:not(.btn){color:var(--teal);text-decoration:underline;text-underline-offset:3px}
.tbl{margin:20px 0 28px}
.tbl table{border-collapse:collapse;width:100%;font-size:15px}
.tbl th,.tbl td{border:1px solid var(--line);padding:13px 15px;text-align:left;vertical-align:top}
.tbl th{background:var(--sand);font-weight:600}
.photo{margin:28px 0}
.photo img{width:100%;border:1px solid var(--line)}
.photo figcaption{font-size:13px;color:var(--mute);margin-top:8px}
.summary{background:var(--sand);padding:24px 28px;margin:28px 0;border-left:4px solid var(--teal)}
.summary h2{border:0!important;padding:0!important;margin:0 0 10px!important}
.summary h2:before{display:none!important}
.quote{border-left:3px solid var(--teal);padding:6px 0 6px 20px;margin:30px 0;font-family:var(--serif)}
.quote small{display:block;font-family:inherit;color:var(--mute);margin-top:6px}
.inline-card{display:flex;margin:22px 0 26px;text-decoration:none!important;color:var(--ink)!important}
.inline-card img{width:38%;object-fit:cover;aspect-ratio:4/3}
.inline-card div{padding:18px 22px;align-self:center}
.inline-card b{font-family:var(--serif);font-weight:500;font-size:18px;display:block;margin-bottom:4px}
.inline-card span{font-size:14px;color:var(--mute)}
.inline-card em{font-style:normal;font-size:13px;font-weight:700;color:var(--teal);display:block;margin-top:8px}
.related{max-width:var(--w);margin:0 auto;padding:36px 24px 80px}
.related h2{margin-bottom:24px}
.consult{max-width:820px;margin:0 auto;padding:44px 24px}
.consult .cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 10px}
@media(max-width:1023px){
.sym-grid,.rel-grid,.cases-grid{grid-template-columns:repeat(2,1fr)}
.feature-split .wrap{grid-template-columns:1fr;gap:30px}
.steps{grid-template-columns:1fr}
}
@media(max-width:700px){
.wrap{padding:0 18px}
.nav-toggle{display:block;background:#fff;border:1px solid var(--line);padding:9px 14px;font-size:13px;cursor:pointer;min-height:40px}
.site-nav ul{display:none;position:absolute;left:0;right:0;top:66px;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:6px 18px 18px;border-bottom:1px solid var(--line)}
.site-nav.open ul{display:flex}
.site-nav li{width:100%;padding:13px 0;border-bottom:1px solid var(--line)}
.site-nav li:last-child{border:0;padding-bottom:0}
.site-nav .btn{width:100%;min-height:50px}
.sym-grid,.rel-grid,.cases-grid,.gallery{grid-template-columns:1fr}
.facts{grid-template-columns:1fr}
.facts li{padding:14px 0;border-bottom:1px solid var(--line)}
.hero-intro{padding:52px 0 32px}
.hero-intro .cta-row,.consult .cta-row{flex-direction:column}
.hero-intro .btn,.consult .btn,.cta .btn,.more-row .btn,.article>p>.btn{width:100%;min-height:54px;font-size:16px}
.more-row{margin-top:32px}
.section{padding:60px 0}
.sec-head{margin-bottom:30px}
.article{padding:32px 18px 16px}
.article h2{margin-top:46px;padding-top:24px}
.page-hero{padding:44px 0 26px}
.answer{font-size:16.5px}
.related{padding:24px 18px 70px}
.inline-card{flex-direction:column}
.inline-card img{width:100%}
.summary{padding:20px}
/* 표: 모바일에서는 행을 카드로 재배치 */
.tbl table{min-width:0}
.tbl thead{display:none}
.tbl tr{display:block;border:1px solid var(--line);margin-bottom:12px;background:#fff}
.tbl td{display:block;border:0;border-bottom:1px solid var(--line);padding:10px 14px}
.tbl td:last-child{border-bottom:0}
.tbl td:before{content:attr(data-label);display:block;font-size:12px;font-weight:700;color:var(--teal);letter-spacing:.06em;margin-bottom:2px}
.floating{left:0;right:0;bottom:0;padding:10px 14px;background:rgba(255,255,255,.97);border-top:1px solid var(--line)}
.floating .btn{width:100%;min-height:50px;box-shadow:none}
.site-footer{padding-bottom:110px}
}
.photo img{max-height:540px;object-fit:cover}
.article .cases-grid{grid-template-columns:repeat(2,1fr);gap:20px;margin:22px 0 10px}
@media(max-width:700px){.article .cases-grid{grid-template-columns:1fr}.photo img{max-height:420px}}

/* ===== v2 디자인 보강 ===== */
a,.case-card a *,.sym-card *,.rel-card *,.inline-card *{text-decoration:none}
body{color:#1d3239}
.article{font-size:16.5px;line-height:1.9}
.article>p:first-of-type,.article>.tbl+p{color:#2c4249}
.article h2{font-size:clamp(23px,3vw,30px);margin-top:64px;padding-top:32px}
.article h2+p{margin-top:2px}
.article strong,.article b{color:var(--ink);font-weight:700}
.answer{border-left:4px solid var(--teal);padding:4px 0 4px 18px;font-size:18px;line-height:1.85}
.page-hero h1{letter-spacing:-.02em}
/* 사진 */
.photo{margin:30px -40px}
.photo img{border:0;box-shadow:0 10px 28px rgba(18,38,45,.12)}
.photo figcaption{padding:10px 4px 0 14px;border-left:3px solid var(--teal);margin-top:12px;font-size:13.5px;line-height:1.5}
/* 인용구 */
.quote{position:relative;background:var(--sand);border:0;padding:30px 32px 26px 32px;margin:40px 0;font-size:19px;line-height:1.75}
.quote:before{content:"\201C";position:absolute;left:16px;top:-4px;font-size:64px;line-height:1;color:var(--teal);font-family:var(--serif)}
.quote{padding-left:56px}
.quote small{font-size:13px;letter-spacing:.04em;margin-top:12px}
/* 표 */
.tbl{box-shadow:0 0 0 1px var(--line)}
.tbl th{background:var(--teal-l);color:var(--teal-d);font-size:14px;letter-spacing:.02em}
.tbl td,.tbl th{border-color:var(--line)}
.tbl tr:nth-child(even) td{background:#fafaf8}
/* 목록 */
.article ul.list li{padding-left:24px}
.article ul.list li:before{top:14px;width:8px;height:8px;background:var(--teal);transform:rotate(45deg)}
/* 카드(본문 안 전후 카드) */
.article .cases-grid{gap:22px}
.article .case-card{border:1px solid var(--line);box-shadow:0 2px 10px rgba(18,38,45,.05)}
.article .case-card:hover{box-shadow:0 14px 30px rgba(18,38,45,.12);transform:translateY(-3px)}
.case-card{transition:border-color .2s,box-shadow .2s,transform .2s}
.case-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.case-body .meta{display:inline-block;align-self:flex-start;background:var(--teal-l);color:var(--teal-d);padding:3px 9px;font-size:11.5px;letter-spacing:.06em}
.case-body h3{font-size:18px;line-height:1.45;margin:10px 0 8px;color:var(--ink)}
.case-body p{color:var(--mute);font-size:14px;line-height:1.65}
.case-body:after{content:"사례 자세히 보기";margin-top:auto;padding-top:16px;font-size:13px;font-weight:700;color:var(--teal)}
.case-card a{color:var(--ink)}
.cmp span{font-size:11px;padding:4px 10px}
/* FAQ */
.faq details{border:1px solid var(--line);margin-bottom:10px;background:#fff;transition:background .2s}
.faq details[open]{background:var(--teal-l);border-color:var(--teal)}
.faq summary{padding:18px 48px 18px 20px;font-size:17px}
.faq summary:after{right:18px;top:14px}
.faq details p{padding:0 20px 20px}
.article .faq{margin-top:12px}
/* 요약 박스 / 인라인 카드 */
.summary{background:var(--teal-l);border-left-color:var(--teal-d)}
.inline-card{box-shadow:0 2px 10px rgba(18,38,45,.05)}
.inline-card b{color:var(--ink)}
/* 관련 카드 */
.rel-card,.sym-card{box-shadow:0 2px 10px rgba(18,38,45,.05)}
.rel-card b,.sym-card b{color:var(--ink)}
.related h2{position:relative;padding-top:26px}
.related h2:before{content:"";position:absolute;left:0;top:0;width:56px;height:3px;background:var(--teal)}
@media(max-width:700px){
.photo{margin:24px 0}
.quote{padding:26px 20px 22px 44px;font-size:17px}
.quote:before{left:10px;font-size:54px}
.article{font-size:16px;line-height:1.85}
.answer{font-size:16.5px;padding-left:14px}
.faq summary{padding:16px 44px 16px 16px;font-size:16px}
}

/* ===== v3: 섹션 여백 + FAQ 모바일 최적화 ===== */
.article{padding-top:56px;padding-bottom:40px}
.article h2{margin-top:88px;padding-top:40px;margin-bottom:24px}
.article h2:first-child{margin-top:0}
.article .tbl,.article .photo,.article .summary,.article .quote,.article .inline-card,.article .cases-grid{margin-top:30px;margin-bottom:34px}
.article p{margin-bottom:20px}
.article ul.list{margin-bottom:26px}
.article .btn{margin-top:12px}
.related{padding-top:64px}
.section{padding:108px 0}
.sec-head{margin-bottom:56px}
.cta{padding:96px 0}
/* FAQ */
.faq summary{display:flex;align-items:center;gap:14px;min-height:56px;line-height:1.5;-webkit-tap-highlight-color:transparent}
.faq summary h3{flex:1;min-width:0;font:inherit;line-height:1.5;margin:0}
.faq summary:after{position:static;flex:0 0 28px;width:28px;height:28px;line-height:26px;text-align:center;border:1px solid var(--teal);color:var(--teal);font-size:20px;transition:background .2s,color .2s}
.faq details[open] summary:after{background:var(--teal);color:#fff}
.faq summary:focus-visible{outline:2px solid var(--teal);outline-offset:-2px}
.faq details p{line-height:1.85;font-size:15.5px}
@media(max-width:700px){
.article{padding-top:40px}
.article h2{margin-top:64px;padding-top:30px;margin-bottom:18px}
.article .tbl,.article .photo,.article .summary,.article .quote,.article .inline-card,.article .cases-grid{margin-top:24px;margin-bottom:28px}
.section{padding:72px 0}
.sec-head{margin-bottom:34px}
.cta{padding:72px 0}
.related{padding-top:44px}
.faq details{margin-bottom:8px}
.faq summary{padding:14px 14px 14px 16px;font-size:15.5px;gap:12px;min-height:60px}
.faq summary:after{flex-basis:26px;width:26px;height:26px;line-height:24px;font-size:18px}
.faq details p{padding:2px 16px 18px 16px;font-size:15px;line-height:1.8}
}

/* ===== v4: 2차 세부페이지(메인형) 보조 스타일 ===== */
.prose{max-width:820px;font-size:16.5px;line-height:1.9}
.prose p{margin-bottom:20px}
.prose p:last-child{margin-bottom:0}
.prose .tbl{margin:0}
.prose ul.list{padding:0;margin:0 0 20px}
.prose ul.list li{position:relative;padding:4px 0 4px 24px;margin-bottom:4px}
.prose ul.list li:before{content:"";position:absolute;left:4px;top:15px;width:8px;height:8px;background:var(--teal);transform:rotate(45deg)}
.sec-intro{color:var(--mute);margin:-18px 0 30px;max-width:680px}
.cases-grid.two{grid-template-columns:repeat(2,1fr);max-width:900px}
.gallery.g2{grid-template-columns:repeat(2,1fr)}
.gallery.g1{grid-template-columns:1fr;max-width:720px}
.gallery figcaption{font-size:13.5px;line-height:1.5}
.section .quote{max-width:820px;margin:0}
.steps li h3{font-size:19px}
.hero-intro .crumbs{margin-bottom:22px}
@media(max-width:1023px){.cases-grid.two{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.cases-grid.two,.gallery.g2{grid-template-columns:1fr}.prose{font-size:16px;line-height:1.85}.sec-intro{margin:-10px 0 22px}}