/* 구조·디자인 참고: sidewalkblock.kjipsuri.com (구조·타이포 위계만, 컬러·문구·이미지 미사용) */
:root{--ink:#1b2a30;--mute:#5b6b72;--brand:#1f4e5f;--accent:#c9661a;--accent-bg:#f4a259;--bg:#f7f5f1;--line:#e3dfd6;--white:#fff;--r:18px;--sec:88px;--hdr:64px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:'Pretendard',-apple-system,'Apple SD Gothic Neo',sans-serif;color:var(--ink);background:var(--white);line-height:1.7;letter-spacing:-.01em;word-break:keep-all}
img{max-width:100%;height:auto;display:block}a{color:inherit}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
h1,h2,h3{line-height:1.3;letter-spacing:-.03em;margin:0}
h1{font-size:clamp(2.4rem,4.6vw,3.6rem);font-weight:800;color:var(--brand)}
h2{font-size:clamp(1.55rem,2.8vw,2.1rem);font-weight:800;margin-bottom:14px}
h3{font-size:1.1rem;font-weight:700}
p{margin:0 0 14px}
section{padding:var(--sec) 0}
.alt{background:var(--bg)}
.eyebrow{font-size:.8rem;font-weight:700;letter-spacing:.1em;color:var(--accent);margin-bottom:10px}
.lead{font-size:1.1rem;color:var(--mute);max-width:760px}
/* header */
#site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:24px;height:var(--hdr)}
.logo{font-weight:800;font-size:1.25rem;color:var(--brand);text-decoration:none}
.site-nav{display:flex;gap:22px;margin-left:auto;font-size:.95rem;font-weight:600}
.site-nav a{text-decoration:none;color:var(--mute)}.site-nav a:hover{color:var(--brand)}
.btn{display:inline-block;background:var(--brand);color:#fff;text-decoration:none;font-weight:700;padding:14px 26px;border-radius:999px;border:0}
.btn:hover{background:#163a48}.btn-sm{padding:9px 18px;font-size:.88rem}
.btn-line{background:transparent;color:var(--brand);border:2px solid var(--brand)}.btn-line:hover{background:var(--brand);color:#fff}
.btn-acc{background:var(--accent-bg);color:#2a1a08}.btn-acc:hover{background:#f0903a}
/* top (사례 우선형) */
.top{padding:calc(var(--hdr) - 8px) 0 var(--sec)}
.top h1{margin:6px 0 18px}
.answer{font-size:1.15rem;max-width:820px;margin-bottom:34px}
.cases{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.case{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff;text-decoration:none;display:flex;flex-direction:column}
.case:hover{box-shadow:0 10px 30px rgba(27,42,48,.12)}
.cmp{display:grid;grid-template-columns:1fr 1fr;position:relative}
.cmp div{position:relative}.cmp img{aspect-ratio:4/5;object-fit:cover;width:100%}
.cmp span{position:absolute;left:10px;top:10px;background:rgba(27,42,48,.78);color:#fff;font-size:.72rem;font-weight:700;padding:3px 10px;border-radius:999px}
.cb{padding:18px 20px 22px}.cb h3{margin-bottom:8px}
.meta{margin:0;padding:0;list-style:none;font-size:.88rem;color:var(--mute)}.meta li+li{margin-top:2px}
/* grids */
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cards2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px}
.card h3{margin-bottom:8px;color:var(--brand)}
.card p{margin:0;color:var(--mute);font-size:.95rem}
.svc{border-radius:var(--r);overflow:hidden;border:1px solid var(--line);background:#fff;text-decoration:none;display:flex;flex-direction:column}
.svc img{aspect-ratio:4/3;object-fit:cover;width:100%}.svc div{padding:18px 20px}.svc h3{margin-bottom:4px}.svc p{margin:0;font-size:.9rem;color:var(--mute)}
.svc:hover{box-shadow:0 10px 30px rgba(27,42,48,.12)}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:0;padding:0;list-style:none}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px}
.steps li:before{content:"0" counter(s);display:block;font-weight:800;color:var(--accent);margin-bottom:8px}
.steps b{display:block;margin-bottom:6px}.steps span{font-size:.92rem;color:var(--mute)}
/* table */
.tbl-wrap{overflow-x:auto;margin:18px 0;border:1px solid var(--line);border-radius:12px}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:.95rem;background:#fff}
caption{text-align:left;padding:12px 16px;font-weight:700;color:var(--brand)}
th,td{padding:12px 16px;text-align:left;border-top:1px solid var(--line);vertical-align:top}
thead th{background:var(--bg);font-size:.85rem}
tbody th{white-space:nowrap}
/* faq */
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:18px 36px 18px 0;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary h3{font-size:1.05rem}
.faq summary:after{content:"+";position:absolute;right:6px;top:14px;font-size:1.5rem;color:var(--accent)}
.faq details[open] summary:after{content:"\2212"}
.faq p{padding:0 0 18px;color:var(--mute);margin:0}
/* cta */
.cta{background:var(--brand);color:#fff;padding:72px 0;text-align:center}
.cta h2{color:#fff}.cta p{opacity:.85;margin-bottom:26px}
/* page article */
.page-hd{padding:56px 0 24px}.page-hd h1{margin:6px 0 16px}
.crumb{font-size:.85rem;color:var(--mute)}.crumb a{text-decoration:none}
.prose{max-width:820px}.prose h2{margin-top:44px}.prose ul{padding-left:20px}.prose li{margin-bottom:6px}
.fig{margin:24px 0}.fig img{border-radius:14px;max-height:520px;width:auto;margin:0 auto}
.fig figcaption{text-align:center;font-size:.85rem;color:var(--mute);margin-top:8px}
.figrow{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:24px 0}.figrow img{border-radius:14px;aspect-ratio:4/5;object-fit:cover;width:100%}
.updated{font-size:.85rem;color:var(--mute);margin-top:30px}
.caselink{display:block;background:var(--bg);border-radius:var(--r);padding:20px 24px;text-decoration:none;font-weight:700;color:var(--brand);margin:28px 0}
.quote{border-left:4px solid var(--accent-bg);padding:6px 0 6px 18px;margin:26px 0;font-size:1.05rem}
.quote cite{display:block;font-size:.85rem;color:var(--mute);font-style:normal;margin-top:6px}
.related{background:var(--bg)}
.rcard{background:#fff;border-radius:var(--r);overflow:hidden;text-decoration:none;border:1px solid var(--line);display:flex;flex-direction:column}
.rcard img{aspect-ratio:4/3;object-fit:cover;width:100%}.rt{font-weight:700;padding:14px 18px 2px}.rs{font-size:.88rem;color:var(--mute);padding:0 18px 16px}
.rcard:hover{box-shadow:0 10px 30px rgba(27,42,48,.12)}
/* footer / floating */
#site-footer{background:#12202a;color:#b9c4ca;padding:44px 0 90px;font-size:.88rem}
.f-links{display:flex;flex-wrap:wrap;gap:8px 20px;margin-bottom:18px}.f-links a{color:#fff;text-decoration:none;font-weight:600}
.biz{margin:0 0 8px}
.floating{position:fixed;right:18px;bottom:18px;z-index:30;background:var(--accent-bg);color:#2a1a08;font-weight:800;text-decoration:none;padding:14px 22px;border-radius:999px;box-shadow:0 8px 24px rgba(0,0,0,.25)}
@media(max-width:860px){
 :root{--sec:60px}
 .cases,.cards3,.cards2,.steps{grid-template-columns:1fr}
 .site-nav{display:none}.bar{justify-content:space-between}
 .figrow{grid-template-columns:1fr 1fr}
}
/* 세부 주제 페이지(topic) */
.cases.one{grid-template-columns:minmax(0,620px)}
.in{max-width:820px}
.in .fig{margin:24px 0}
.steps.auto{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
ul.check{list-style:none;padding:0;margin:0 0 14px}
ul.check li{position:relative;padding-left:32px;margin-bottom:10px}
ul.check li:before{content:"";position:absolute;left:0;top:.35em;width:16px;height:16px;border:2px solid var(--brand);border-radius:4px}
.sec-sub{margin:26px 0 8px}