/* 차르잼블픽스 — 디자인 시스템 (구조·형태·타이포 참고: sidewalkblock.kjipsuri.com, 컬러는 별도 선정) */
:root{
  --bg:#fff; --bg-mist:#f2f4f6; --ink:#1d2730; --ink-soft:#4d5a66; --ink-mute:#7b8691; --heading:#16202a;
  --line:#dfe4e9; --brand:#2c4a63; --brand-dark:#1f3548; --brand-soft:#e8eef3; --accent:#a8642f;
  --maxw:1180px; --gutter:24px; --section-py:88px; --radius:10px; --radius-sm:6px; --header-h:72px;
  --serif:"Noto Serif KR","Nanum Myeongjo","Apple SD Gothic Neo",serif;
  --sans:"Pretendard","Apple SD Gothic Neo","Malgun Gothic",ui-sans-serif,system-ui,sans-serif;
  --fs-h1:clamp(30px,4.2vw,48px); --fs-h2:clamp(25px,2.6vw,38px); --fs-h3:clamp(19px,1.5vw,24px);
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden;word-break:keep-all}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--serif);color:var(--heading);font-weight:500;line-height:1.35;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:var(--fs-h1)} h2{font-size:var(--fs-h2)} h3{font-size:var(--fs-h3)}
p{margin:0 0 1em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
.skip-link{position:absolute;left:-999px;top:0;background:#000;color:#fff;padding:10px 14px;z-index:100}
.skip-link:focus{left:8px;top:8px}

/* header */
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site-header__inner{height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px}
.brand__name{font-family:var(--serif);font-weight:600;font-size:19px;color:var(--heading)}
.site-nav{display:flex;gap:30px;font-size:15px;color:var(--ink-soft)}
.site-nav a:hover{color:var(--brand)}
@media(max-width:820px){.site-nav{display:none}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;height:52px;padding:0 28px;border-radius:4px;font-weight:600;font-size:16px;border:1px solid transparent;cursor:pointer;font-family:var(--sans);transition:background .15s,color .15s}
.btn--sm{height:44px;padding:0 18px;font-size:14.5px}
.btn--primary{background:var(--brand);color:#fff}.btn--primary:hover{background:var(--brand-dark)}
.btn--ghost{background:#fff;color:var(--brand);border-color:var(--brand)}.btn--ghost:hover{background:var(--brand-soft)}
.btn--lg{height:56px;padding:0 36px}
.link-arrow{font-weight:600;color:var(--brand);border-bottom:1px solid currentColor;padding-bottom:2px}
.float-cta{position:fixed;right:20px;bottom:20px;z-index:50;background:var(--accent);color:#fff;font-weight:600;font-size:15px;padding:14px 22px;border-radius:999px;box-shadow:0 6px 20px rgba(0,0,0,.18)}
@media(max-width:820px){.float-cta{left:0;right:0;bottom:0;border-radius:0;text-align:center;padding:16px;background:var(--brand)}body{padding-bottom:56px}}

/* sections */
.section{padding:var(--section-py) 0}.section--alt{background:var(--bg-mist)}
.section__head{max-width:760px;margin:0 0 40px}
.section__label{display:block;font-family:var(--sans);font-size:13px;letter-spacing:.14em;color:var(--accent);font-weight:600;margin-bottom:10px}
.section__title{font-size:var(--fs-h2)}.section__desc{color:var(--ink-soft)}
.grid{display:grid;gap:28px}.grid--3{grid-template-columns:repeat(3,1fr)}.grid--2{grid-template-columns:repeat(2,1fr)}
@media(max-width:900px){.grid--3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid--3,.grid--2{grid-template-columns:1fr}.section{padding:56px 0}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.card--link:hover{border-color:var(--brand)}
.card__media{aspect-ratio:4/3;overflow:hidden;background:var(--bg-mist)}.card__media img{width:100%;height:100%;object-fit:cover}
.card__body{padding:22px}.card__eyebrow{font-size:12px;letter-spacing:.12em;color:var(--accent);font-weight:600}
.card__title{font-size:20px;margin:6px 0 8px}.card__desc{font-size:15px;color:var(--ink-soft);margin:0}.card__link{display:inline-block;margin-top:12px;color:var(--brand);font-weight:600;font-size:15px}

/* top: page head + case grid */
.page-head{padding:56px 0 36px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,var(--brand-soft),#fff)}
.page-head .section__label{margin-bottom:12px}
.page-head__answer{max-width:820px;font-size:18px;color:var(--ink-soft)}
.page-head__cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.cases{padding:48px 0 var(--section-py)}
.cases__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
@media(max-width:900px){.cases__grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.cases__grid{grid-template-columns:1fr}}
.cmp-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.cmp-card:hover{border-color:var(--brand)}
.cmp-card__pair{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--line)}
.cmp-card__pair figure{margin:0;position:relative;aspect-ratio:3/4;overflow:hidden}
.cmp-card__pair img{width:100%;height:100%;object-fit:cover}
.cmp-card__pair figcaption{position:absolute;left:8px;top:8px;background:rgba(22,32,42,.78);color:#fff;font-size:12px;padding:2px 9px;border-radius:3px}
.cmp-card__body{padding:20px 22px 22px}.cmp-card__body h3{font-size:19px;margin-bottom:12px}
.cmp-card dl{margin:0;font-size:14.5px}.cmp-card dl div{display:flex;gap:12px;padding:5px 0;border-top:1px solid var(--line)}
.cmp-card dt{flex:0 0 64px;color:var(--ink-mute)}.cmp-card dd{margin:0;color:var(--ink-soft)}
.cases__more{text-align:center;margin-top:40px}

/* intro statement */
.intro-statement{padding:var(--section-py) 0;text-align:center}
.intro-statement__text{font-family:var(--serif);font-size:clamp(22px,3vw,34px);line-height:1.6;color:var(--heading);max-width:860px;margin:0 auto}
.intro-statement__line{display:block}

/* feature split */
.feature-split{display:grid;grid-template-columns:1fr 1fr}
.feature-split__panel{position:relative;aspect-ratio:4/3;overflow:hidden;color:#fff;display:block}
.feature-split__panel img{width:100%;height:100%;object-fit:cover}
.feature-split__overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(22,32,42,.1),rgba(22,32,42,.65))}
.feature-split__label{position:absolute;left:32px;bottom:28px;right:32px}
.feature-split__title{display:block;font-family:var(--serif);font-size:clamp(22px,2.4vw,32px)}
.feature-split__sub{display:block;font-size:15px;opacity:.9;margin-top:4px}
@media(max-width:700px){.feature-split{grid-template-columns:1fr}}

/* gallery mosaic (E-1) */
.gallery-mosaic{padding:var(--section-py) 0}
.gallery-mosaic__grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gallery-mosaic__link{position:relative;display:block;aspect-ratio:3/4;overflow:hidden;border-radius:var(--radius-sm)}
.gallery-mosaic__link img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.gallery-mosaic__link:hover img{transform:scale(1.04)}
.gallery-mosaic__scrim{position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(22,32,42,.78))}
.gallery-mosaic__tag{position:absolute;left:14px;bottom:38px;font-size:12px;letter-spacing:.08em;color:#e7c9ae}
.gallery-mosaic__keyword{position:absolute;left:14px;right:14px;bottom:12px;color:#fff;font-family:var(--serif);font-size:17px;line-height:1.3}
@media(max-width:900px){.gallery-mosaic__grid{grid-template-columns:repeat(2,1fr)}}

/* definition (G-6) */
.def__lead{font-family:var(--serif);font-size:clamp(20px,2vw,26px);line-height:1.6;color:var(--heading);max-width:860px}
.def__text{max-width:820px;color:var(--ink-soft)}
.def__cards{margin-top:36px}
.def-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.def-card h3{font-size:19px;margin-bottom:8px}.def-card p{font-size:15px;color:var(--ink-soft);margin:0}
.def__grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:900px){.def__grid4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.def__grid4{grid-template-columns:1fr}}

/* split / process */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split__media img{width:100%;border-radius:var(--radius);max-height:560px;object-fit:cover}
.steps{list-style:none;margin:20px 0 0;padding:0;counter-reset:s}
.steps li{counter-increment:s;position:relative;padding:12px 0 12px 48px;border-top:1px solid var(--line)}
.steps li::before{content:counter(s);position:absolute;left:0;top:12px;width:32px;height:32px;border-radius:50%;background:var(--brand);color:#fff;font-size:14px;display:flex;align-items:center;justify-content:center}
.steps strong{display:block;color:var(--heading)}
@media(max-width:820px){.split{grid-template-columns:1fr;gap:28px}}

/* check list */
.check-list{list-style:none;margin:0;padding:0;max-width:820px}
.check-list li{display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--line)}
.check-list__dot{flex:0 0 10px;height:10px;border-radius:50%;background:var(--accent);margin-top:11px}

/* faq */
.faq-list{max-width:860px}
.faq-item{border-top:1px solid var(--line)}.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-item__q{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 0}
.faq-item__q::-webkit-details-marker{display:none}
.faq-item__q h3{font-family:var(--sans);font-size:17.5px;font-weight:600;margin:0;color:var(--heading)}
.faq-item__icon{flex:0 0 14px;height:14px;position:relative}
.faq-item__icon::before,.faq-item__icon::after{content:"";position:absolute;background:var(--brand);left:0;right:0;top:6px;height:2px}
.faq-item__icon::after{transform:rotate(90deg);transition:transform .2s}
.faq-item[open] .faq-item__icon::after{transform:rotate(0)}
.faq-item__a{padding:0 0 22px;color:var(--ink-soft)}.faq-item__a p{margin:0}

/* CTA band */
.cta{background:var(--brand-dark);color:#fff;padding:56px 0}
.cta__inner{display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap}
.cta__heading{font-family:var(--serif);font-size:clamp(21px,2.4vw,30px);margin:0 0 6px}.cta__sub{margin:0;color:#c8d4de;max-width:640px}
.cta .btn--primary{background:#fff;color:var(--brand-dark)}.cta .btn--primary:hover{background:var(--brand-soft)}

/* article (case / nseo) */
.crumbs{font-size:14px;color:var(--ink-mute);padding:22px 0 0}.crumbs a:hover{color:var(--brand)}
.article{padding:28px 0 var(--section-py)}
.article__inner{max-width:820px}
.article__answer{font-size:19px;color:var(--ink-soft);border-left:3px solid var(--accent);padding-left:18px;margin:18px 0 28px}
.article h2{margin-top:2em;font-size:clamp(22px,2.2vw,30px)}
.article__figure{margin:28px 0}.article__figure img{width:100%;max-width:520px;border-radius:var(--radius)}
.article__figure figcaption{font-size:14px;color:var(--ink-mute);margin-top:8px}
.article ul{padding-left:1.2em}.article li{margin-bottom:.4em}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin:0 0 28px}
.facts div{background:#fff;padding:14px 16px}.facts dt{font-size:13px;color:var(--ink-mute)}.facts dd{margin:2px 0 0;font-weight:600;color:var(--heading)}
@media(max-width:640px){.facts{grid-template-columns:1fr}}
.quote{background:var(--brand-soft);border-radius:var(--radius);padding:24px 26px;margin:32px 0}
.quote p{font-family:var(--serif);font-size:18px;margin:0 0 8px}.quote cite{font-size:14px;color:var(--ink-soft);font-style:normal}
.table-wrap{overflow-x:auto;margin:20px 0;border:1px solid var(--line);border-radius:var(--radius)}
.table-wrap table{border-collapse:collapse;width:100%;min-width:520px;font-size:15.5px}
.table-wrap caption{caption-side:top;text-align:left;padding:12px 16px;font-weight:600;color:var(--heading)}
.table-wrap th,.table-wrap td{padding:12px 16px;border-top:1px solid var(--line);text-align:left;vertical-align:top}
.table-wrap th{background:var(--bg-mist);color:var(--heading)}
.updated{font-size:14px;color:var(--ink-mute);margin-top:32px}
.photo-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:24px 0}
.photo-pair img{border-radius:var(--radius);width:100%}
.photo-pair figcaption{font-size:14px;color:var(--ink-mute);margin-top:6px}

/* footer */
.site-footer{background:var(--brand-dark);color:#c8d4de;font-size:14.5px}
.site-footer__inner{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-top:48px;padding-bottom:36px}
.site-footer p{margin:0 0 4px}.brand--footer{color:#fff;margin-bottom:12px}.brand--footer strong{font-family:var(--serif);font-size:18px}
.site-footer__nav ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}.site-footer__nav a:hover{color:#fff}
.site-footer__bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:13px;color:#9fb0bf}.site-footer__bottom p{margin:0}

/* consultation */
.consult-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:c}
.consult-steps li{counter-increment:c;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.consult-steps li::before{content:"STEP " counter(c);display:block;font-size:12px;letter-spacing:.12em;color:var(--accent);font-weight:600;margin-bottom:8px}
@media(max-width:700px){.consult-steps{grid-template-columns:1fr}}
.consult-cta{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0}

/* ===== v2: 섹션 구분 · 제목 위계 · 인터랙션 개선 ===== */
:root{--shadow:0 1px 2px rgba(22,32,42,.05),0 8px 24px rgba(22,32,42,.07);--shadow-lg:0 2px 4px rgba(22,32,42,.06),0 16px 40px rgba(22,32,42,.12)}
body{font-size:16.5px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:3px}
.site-header{box-shadow:0 1px 0 var(--line),0 4px 16px rgba(22,32,42,.04)}
.site-nav a{position:relative;padding:6px 0}
.site-nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--accent);transition:right .25s}
.site-nav a:hover::after{right:0}
.btn{transition:background .2s,color .2s,transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(44,74,99,.25)}

/* 섹션 구분: 교차 배경 + 상단 구분선 + 라벨 장식 */
.section,.gallery-mosaic,.intro-statement,.cases{position:relative}
.section+.section:not(.section--alt):not(.cta){border-top:1px solid var(--line)}
.section--alt{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cases{background:#fff;border-bottom:1px solid var(--line)}
.intro-statement{background:var(--brand-dark);color:#fff}
.intro-statement__text{color:#fff}
.intro-statement .container::before{content:"";display:block;width:48px;height:3px;background:var(--accent);margin:0 auto 28px}
.gallery-mosaic{background:var(--bg-mist);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section__label{display:inline-flex;align-items:center;gap:10px}
.section__label::before{content:"";width:28px;height:2px;background:var(--accent)}
.page-head .section__label::before{background:var(--accent)}

/* 제목 위계: H1 > H2 > H3 */
h1{font-weight:600;letter-spacing:-.02em;line-height:1.25}
.section__head{padding-bottom:20px;margin-bottom:44px;border-bottom:1px solid var(--line);max-width:none}
.section__head .section__desc{max-width:760px;margin:0}
.section__title{font-weight:600}
h3{font-weight:600}
.card__title,.def-card h3,.cmp-card__body h3{font-weight:600}
.def-card h3{padding-bottom:10px;margin-bottom:12px;border-bottom:2px solid var(--brand-soft)}
.def__lead{padding-left:20px;border-left:4px solid var(--accent)}

/* 카드 */
.card,.cmp-card,.def-card{box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s,border-color .25s}
.card--link:hover,.cmp-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card__media img,.cmp-card__pair img{transition:transform .5s}
.card--link:hover .card__media img,.cmp-card:hover .cmp-card__pair img{transform:scale(1.04)}
.cmp-card__body{border-top:3px solid var(--brand)}
.cmp-card__pair figcaption{background:var(--brand-dark)}
.cmp-card__pair figure:last-child figcaption{background:var(--accent)}
.page-head{padding:64px 0 44px}
.page-head h1{max-width:820px}
.cases{padding:56px 0 var(--section-py)}

/* 상세 글: H2 구분 */
.article h2{margin-top:2.6em;padding-top:1.3em;border-top:1px solid var(--line);position:relative}
.article h2::before{content:"";position:absolute;top:-1px;left:0;width:56px;height:3px;background:var(--accent)}
.article .table-wrap+section h2,.article>.container>section:first-of-type h2{margin-top:2em}
.article h3{margin-top:1.6em}
.article__figure img{box-shadow:var(--shadow)}
.article p,.article li{line-height:1.85}
.article section{margin-bottom:.5em}
.table-wrap{box-shadow:var(--shadow)}
.table-wrap th[scope=row]{background:var(--bg-mist);white-space:nowrap}
.table-wrap tbody tr:nth-child(even) td{background:#fafbfc}
.quote{border-left:4px solid var(--accent);background:var(--brand-soft)}
.facts{box-shadow:var(--shadow)}

/* FAQ */
.faq-item{transition:background .2s}
.faq-item[open]{background:var(--brand-soft);margin:0 -16px;padding:0 16px;border-radius:6px}
.faq-item__q:hover h3{color:var(--brand)}
.section--alt .faq-item[open]{background:#fff}

/* CTA / footer / 기타 */
.cta{border-top:4px solid var(--accent)}
.site-footer{border-top:1px solid rgba(255,255,255,.06)}
.check-list li{transition:background .2s}
.steps li:last-child{border-bottom:1px solid var(--line)}
.related .section__head{margin-bottom:32px}
.float-cta{transition:transform .2s}.float-cta:hover{transform:translateY(-2px)}
@media(max-width:820px){
  .section__head{margin-bottom:32px}
  .page-head{padding:40px 0 32px}
  .intro-statement{padding:56px 0}
  .faq-item[open]{margin:0 -10px;padding:0 10px}
  .article h2{margin-top:2.2em}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* v3: 버튼 위아래 여백 + 모바일 배치 */
.btn-row{margin:40px 0 8px}
.page-head__cta,.consult-cta{margin:28px 0 8px;gap:12px}
.cases__more{margin:40px 0 8px}
.cta .btn{margin:4px 0}
.consult-steps{margin-top:32px}
@media(max-width:820px){
  .btn{width:100%;height:54px;text-align:center}
  .btn--sm{width:auto;height:44px}
  .page-head__cta,.consult-cta{flex-direction:column;align-items:stretch;margin:24px 0 8px}
  .btn-row{margin:32px 0 8px}
  .cta__inner{flex-direction:column;align-items:stretch;text-align:left}
  .cta{padding:44px 0}
  .cases__more{margin:32px 0 8px}
  .cases__more .btn{width:100%}
  .float-cta{padding:16px 16px calc(16px + env(safe-area-inset-bottom))}
  body{padding-bottom:calc(56px + env(safe-area-inset-bottom))}
}

/* v4: 키워드 세부페이지 블록 */
.cmp-card--inline{margin:28px 0;max-width:560px}
.cmp-card--inline .cmp-card__body p{margin:0;font-size:15px;color:var(--ink-soft)}
.article .steps{margin:24px 0}
.callout{background:var(--brand-soft);border-left:4px solid var(--brand);border-radius:var(--radius);padding:20px 24px;margin:28px 0}
.callout strong{display:block;font-family:var(--serif);font-size:18px;color:var(--heading);margin-bottom:6px}
.callout p{margin:0;color:var(--ink-soft)}