@charset "UTF-8";
/* 에디토리얼 모노크롬 구조(참고 사이트 레이아웃) + 자체 팔레트. 그림자 없음, 카드·이미지 radius 0, 버튼만 20px */
body,p,h1,h2,h3,li,td,th,a,span,div,button,summary{word-break:keep-all;overflow-wrap:break-word}
:root{
  --ink:#12303a;--paper:#fff;--mist:#eef3f2;--line:#d4dfdd;--accent:#2a7a6e;
  --muted:#4b6168;--muted-dk:#c3d3d0;
  --font-display:'Instrument Serif','Chosunilbo','Noto Serif KR','Times New Roman',serif;
  --font-ui:'Archivo','Wanted Sans Variable','Wanted Sans',-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
  --font-mono:'DM Mono','Wanted Sans Variable',ui-monospace,SFMono-Regular,Menlo,monospace;
  --wrap:1360px;--sec:132px;--pad:48px;--gap:20px;
}
@font-face{font-family:'Chosunilbo';src:url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_one@1.0/Chosunilbo_myungjo.woff') format('woff');font-weight:400 500;font-display:swap}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-ui);font-size:17px;line-height:1.75}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--pad)}
.narrow{max-width:900px}
section{padding:var(--sec) 0}
.alt{background:var(--mist)}
.kicker{font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin:0 0 18px}
h1,h2,h3{font-family:var(--font-display);font-weight:400;letter-spacing:-.02em;line-height:1.2;margin:0}
.h-lg{font-size:clamp(31px,5.2vw,54px);margin-bottom:28px}
.h-md{font-size:clamp(23px,3vw,34px);margin:56px 0 18px}
p{margin:0 0 18px}
.lead{font-size:clamp(18px,1.6vw,21px);line-height:1.75;max-width:62ch}
.muted{color:var(--muted)}
/* buttons */
.btn{display:inline-block;font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;text-decoration:none;padding:15px 28px;border:1px solid var(--ink);border-radius:20px;background:var(--ink);color:#fff;cursor:pointer}
.btn:hover{background:#fff;color:var(--ink)}
.btn-ghost{background:transparent;color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-sm{padding:9px 20px;font-size:12px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px}
/* header */
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;justify-content:space-between;height:68px}
.hdr-logo{text-decoration:none;display:flex;flex-direction:column;line-height:1.15}
.hdr-logo-1{font-family:var(--font-display);font-size:24px}
.hdr-logo-2{font-family:var(--font-mono);font-size:9px;letter-spacing:1px;color:var(--muted)}
.main-nav{display:flex;align-items:center;gap:30px;font-family:var(--font-mono);font-size:13px}
.main-nav a{text-decoration:none}
.main-nav a:not(.btn):hover{text-decoration:underline}
/* hero */
.hero{position:relative;min-height:86vh;padding:0;display:flex;align-items:flex-end;color:#fff;background:var(--ink)}
.hero-media{position:absolute;inset:0;overflow:hidden}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,48,58,.35),rgba(18,48,58,.78))}
.hero-in{position:relative;z-index:1;width:100%;display:grid;grid-template-columns:1fr auto;gap:40px;align-items:end;padding-top:140px;padding-bottom:60px}
.hero .kicker{color:rgba(255,255,255,.8)}
.hero h1{font-size:clamp(44px,11vw,168px);line-height:1;letter-spacing:-.045em}
.hero-meta{max-width:30ch;text-align:right}
.hero-sub{font-size:16px;line-height:1.7;margin:0 0 18px;color:rgba(255,255,255,.92)}
.hero .btn{background:#fff;color:var(--ink);border-color:#fff}
.hero .btn:hover{background:transparent;color:#fff}
.hero .btn-ghost{background:transparent;color:#fff}
.hero-note{font-family:var(--font-mono);font-size:12px;color:rgba(255,255,255,.7);margin:16px 0 0}
/* grids / cards */
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:40px}
.g2{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.card{border:1px solid var(--line);padding:28px;background:#fff}
.card h3{font-size:24px;margin-bottom:10px}
.card p{margin:0;font-size:15.5px;color:var(--muted)}
.split{display:grid;grid-template-columns:35fr 65fr;gap:96px;align-items:start}
/* table */
.tbl{overflow-x:auto;margin:28px 0}
table{border-collapse:collapse;width:100%;font-size:15.5px;min-width:560px}
th,td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{font-family:var(--font-mono);font-size:12px;letter-spacing:.3px;white-space:nowrap;background:var(--mist)}
/* case cards (before / after 50:50) */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:40px}
.case-card{display:block;text-decoration:none;border:1px solid var(--line);background:#fff}
.case-card.is-hidden{display:none}
.cmp{display:grid;grid-template-columns:1fr 1fr;position:relative}
.cmp img{width:100%;aspect-ratio:3/4;object-fit:cover}
.cmp span{position:absolute;top:8px;left:8px;font-family:var(--font-mono);font-size:11px;background:var(--ink);color:#fff;padding:2px 8px}
.cmp .b2{left:calc(50% + 8px)}
.case-b{padding:18px 20px 22px}
.case-b h3{font-size:22px;margin-bottom:6px}
.case-b p{margin:0;font-size:14.5px;color:var(--muted)}
.more-row{text-align:center;margin-top:48px}
/* rel cards */
.rel{background:var(--mist)}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.rel-card{display:block;text-decoration:none;background:#fff;border:1px solid var(--line)}
.rel-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.rel-t{display:block;font-family:var(--font-display);font-size:24px;line-height:1.25;padding:18px 20px 4px}
.rel-s{display:block;font-size:14.5px;color:var(--muted);padding:0 20px 22px}
/* steps */
.steps{list-style:none;padding:0;margin:40px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.steps li{border:1px solid var(--line);background:#fff;padding:24px 22px}
.steps li::before{content:'';display:block;width:28px;height:3px;background:var(--accent);margin-bottom:14px}
.steps b{display:block;font-family:var(--font-display);font-size:24px;font-weight:400;margin-bottom:6px}
.steps span{font-size:15px;color:var(--muted)}
/* faq */
.faq{border-top:1px solid var(--ink);margin-top:32px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:22px 40px 22px 0;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';position:absolute;right:6px;top:18px;font-family:var(--font-mono);font-size:24px}
.faq details[open] summary::after{content:'−'}
.faq summary h3{font-family:var(--font-ui);font-size:18px;font-weight:500;letter-spacing:-.01em;display:inline}
.faq p{margin:0 0 24px;max-width:70ch;color:var(--muted)}
/* article pages */
.crumb{font-family:var(--font-mono);font-size:12px;color:var(--muted);padding:28px 0 0}
.crumb a{text-decoration:none}
.page-h{padding:48px 0 var(--sec)}
.page-h h1{font-size:clamp(38px,7vw,88px);line-height:1.05;margin-bottom:28px;letter-spacing:-.035em}
.art{padding:0 0 var(--sec)}
.art h2{font-size:clamp(26px,3.2vw,38px);margin:64px 0 16px}
.art ul.ck{padding-left:20px}
.art ul.ck li{margin-bottom:6px}
.fig{margin:36px 0}
.fig img{width:100%;max-width:540px}
.fig figcaption{font-family:var(--font-mono);font-size:12px;color:var(--muted);margin-top:8px}
.cmp-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:32px 0}
.cmp-pair img{width:100%;aspect-ratio:3/4;object-fit:cover}
.upd{font-family:var(--font-mono);font-size:12px;color:var(--muted);margin-top:56px}
.note{border-left:3px solid var(--accent);padding:4px 0 4px 20px;color:var(--muted)}
/* footer */
.site-footer{background:var(--ink);color:#fff;padding:96px 0 40px}
.ft-in{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px}
.ft-brand{font-family:var(--font-display);font-size:32px;margin-bottom:18px}
.ft-line{font-size:14px;color:var(--muted-dk);margin:0 0 6px}
.ft-h{font-family:var(--font-mono);font-size:11px;letter-spacing:1px;color:var(--muted-dk);margin:0 0 18px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:8px;font-size:14.5px}
.site-footer a{text-decoration:none}
.site-footer a:hover{text-decoration:underline}
.ft-copy{font-family:var(--font-mono);font-size:11px;color:var(--muted-dk);margin-top:56px;padding-top:20px;border-top:1px solid rgba(255,255,255,.18)}
.floating{position:fixed;right:20px;bottom:20px;z-index:30;font-family:var(--font-mono);font-size:13px;text-decoration:none;background:var(--ink);color:#fff;padding:14px 22px;border-radius:20px;border:1px solid #fff}
.final-cta{background:var(--ink);color:#fff;text-align:center}
.final-cta .kicker{color:var(--muted-dk)}
.final-cta .btn{background:#fff;color:var(--ink);border-color:#fff}
.final-cta .btn:hover{background:transparent;color:#fff}
.final-cta p{max-width:56ch;margin:0 auto 12px;color:var(--muted-dk)}
.biz-tbl th{width:30%}
@media (max-width:900px){
  :root{--sec:84px;--pad:22px}
  .g3,.g2,.rel-grid,.steps,.split,.ft-in{grid-template-columns:1fr;gap:24px}
  .case-grid{grid-template-columns:1fr;gap:24px}
  .hero-in{grid-template-columns:1fr}
  .hero-meta{text-align:left}
  .main-nav a:not(.btn){display:none}
  .hero{min-height:78vh}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* ── 디자인 개선: 섹션·헤딩 구분, 카드 인터랙션, 모바일 버튼 ── */
.sec-head{margin-bottom:8px}
.kicker{display:flex;align-items:center;gap:14px}
.kicker::before{content:'';width:36px;height:1px;background:currentColor}
.hero .kicker::before{background:rgba(255,255,255,.6)}
section:not(.hero):not(.alt):not(.final-cta):not(.rel)+section:not(.alt):not(.final-cta){border-top:1px solid var(--line)}
.h-lg{margin-bottom:24px}
.lead{margin-bottom:28px}
.card,.case-card,.rel-card{transition:border-color .2s,transform .2s}
.card:hover,.case-card:hover,.rel-card:hover{border-color:var(--ink)}
.case-card:hover,.rel-card:hover{transform:translateY(-3px)}
.card{border-top:3px solid var(--ink)}
.card h3{padding-bottom:10px;margin-bottom:12px;border-bottom:1px solid var(--line)}
.who{list-style:none;padding:0;margin:36px 0 0;display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.who li{display:flex;gap:16px;align-items:flex-start;padding:22px 24px;background:#fff;border:1px solid var(--line);font-size:16.5px;line-height:1.6}
.who li::before{content:'';flex:0 0 10px;height:10px;margin-top:9px;background:var(--accent)}
.who b{display:block;font-family:var(--font-display);font-weight:400;font-size:22px;margin-bottom:4px}
.who span{color:var(--muted);font-size:15.5px}
.sub-def{margin-top:40px;padding:20px 24px;border-left:3px solid var(--accent);background:var(--mist);font-size:15.5px;color:var(--muted)}
.alt .who li{background:#fff}
/* 본문(article) 헤딩 구분 */
.art section{margin:0}
.art section+section,.art figure+section{margin-top:72px;padding-top:36px;border-top:1px solid var(--line)}
.art h2{margin:0 0 18px;padding-left:16px;border-left:4px solid var(--accent);font-size:clamp(24px,3vw,34px)}
.art p{max-width:68ch}
.art ul.ck,.art ol.ck{padding-left:0;list-style:none}
.art ul.ck li,.art ol.ck li{position:relative;padding:12px 0 12px 26px;border-bottom:1px solid var(--line);margin:0}
.art ul.ck li::before,.art ol.ck li::before{content:'';position:absolute;left:4px;top:23px;width:8px;height:8px;background:var(--accent)}
ul.ck{list-style:none;padding-left:0}
ul.ck li{position:relative;padding:10px 0 10px 24px;border-bottom:1px solid var(--line)}
ul.ck li::before{content:'';position:absolute;left:2px;top:21px;width:8px;height:8px;background:var(--accent)}
tbody tr:nth-child(even) td{background:#f7faf9}
.tbl{border:1px solid var(--line)}
.page-h{border-bottom:1px solid var(--line);margin-bottom:56px}
.faq summary:hover h3{color:var(--accent)}
.faq summary h3{font-size:18px;line-height:1.5}
.faq details[open]{background:var(--mist);padding:0 20px;border-bottom-color:var(--ink)}
.faq details[open] summary{padding-left:0}
.btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;transition:background .2s,color .2s}
.btn:focus-visible,.floating:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
@media (max-width:900px){
  body{font-size:16px;padding-bottom:76px}
  .btn-row{flex-direction:column;gap:10px;margin-top:28px}
  .btn-row .btn,.hero .btn,.more-row .btn,.final-cta .btn{width:100%;min-height:54px;font-size:15px}
  .btn-sm{width:auto;min-height:40px;padding:8px 18px}
  .hero-meta .btn{display:flex}
  .floating{left:12px;right:12px;bottom:max(12px,env(safe-area-inset-bottom));text-align:center;padding:0;min-height:54px;display:flex;align-items:center;justify-content:center;font-size:15px;border-radius:28px}
  .who{grid-template-columns:1fr}
  .art section+section,.art figure+section{margin-top:52px;padding-top:28px}
  .art h2{padding-left:14px}
  .case-b h3{font-size:20px}
  .page-h{margin-bottom:36px;padding-bottom:var(--sec)}
  .faq details[open]{padding:0 14px}
  .steps li{padding:20px 18px}
}
/* hero: 좌측 정렬 단일 컬럼 */
.hero-in{grid-template-columns:1fr;gap:28px;align-items:end;padding-top:160px;padding-bottom:72px}
.hero h1{font-size:clamp(40px,8.5vw,128px);line-height:1.02}
.hero-meta{text-align:left;max-width:52ch}
.hero-sub{font-size:clamp(16px,1.5vw,19px);margin-bottom:24px}
.hero-note{margin-top:14px}
@media (max-width:900px){.hero-in{padding-top:110px;padding-bottom:40px;gap:20px}.hero h1{font-size:clamp(36px,12vw,64px)}}
/* 세부페이지 인용구·2열 사례·세로 단계 */
.pull{margin:56px 0;padding:8px 0 8px 28px;border-left:4px solid var(--accent);font-family:var(--font-display);font-size:clamp(24px,3vw,34px);line-height:1.35;letter-spacing:-.02em}
.case-grid.two{grid-template-columns:repeat(2,1fr);margin-top:24px}
.steps.st-col{grid-template-columns:1fr;gap:12px;margin-top:20px}
.art .fig{margin:48px 0}
@media (max-width:900px){.case-grid.two{grid-template-columns:1fr}.pull{margin:40px 0;padding-left:18px}}