:root{
  --ink:#15181C;
  --ink-soft:#23272D;
  --paper:#FBFBF8;
  --card:#FFFFFF;
  --line:#E4E4DE;
  --steel:#59616B;
  --marker:#FFE14D;
  --marker-tint:rgba(255,225,77,.16);
  --meta:#0866FF;
  --font-sans:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,system-ui,"Segoe UI","Malgun Gothic","Apple SD Gothic Neo",sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --wide:1180px;
  --measure:780px;
  --pad:clamp(20px,4vw,48px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font-sans);font-size:16px;line-height:1.75;
  letter-spacing:-.01em;word-break:keep-all;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
::selection{background:var(--marker);color:var(--ink)}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--meta);outline-offset:3px;border-radius:2px}
.wrap{max-width:var(--wide);margin-inline:auto;padding-inline:var(--pad)}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:var(--paper);padding:10px 18px;z-index:100;font-size:.9rem}
.skip-link:focus{left:0}
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(251,251,248,.9);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-top:4px solid var(--marker);border-bottom:1px solid var(--line)
}
.header-in{display:flex;align-items:center;justify-content:space-between;height:64px;gap:24px}
.logo{display:flex;align-items:center}.logo-img{height:26px;width:auto;display:block;filter:brightness(0)}
.main-nav{display:flex;gap:26px;font-size:.95rem;font-weight:600}
.main-nav a{text-decoration:none;color:var(--ink-soft)}
.main-nav a:hover{color:var(--ink);box-shadow:0 2px 0 var(--marker)}
.main-nav a[aria-current="page"]{box-shadow:inset 0 -9px 0 var(--marker)}
.header-cta{flex-shrink:0;text-decoration:none;font-weight:700;font-size:.9rem;background:var(--ink);color:var(--paper);padding:10px 18px;border-radius:8px}
.header-cta:hover{background:#000}
.crumbs{font-family:var(--font-mono);font-size:.76rem;color:var(--steel);padding-top:32px}
.crumbs ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}
.crumbs li+li::before{content:"/";margin-right:8px;color:#9AA09A}
.crumbs a{text-underline-offset:3px}
.page-hero{padding:48px 0 56px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(260px,.7fr);gap:clamp(36px,7vw,88px);align-items:end}
.eyebrow{margin:0 0 14px;font-family:var(--font-mono);font-size:.76rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--steel)}
h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.15;letter-spacing:-.035em;margin:0 0 22px;font-weight:850}
h1 mark,h2 mark{background:var(--marker);padding:.03em .13em;color:inherit}
.hero-lede{font-size:clamp(1.02rem,1.7vw,1.18rem);line-height:1.75;color:var(--ink-soft);margin:0;max-width:720px}
.hero-note{border-top:3px solid var(--ink);padding-top:16px;color:var(--steel);font-size:.92rem}
.hero-note strong{display:block;color:var(--ink);font-size:1rem;margin-bottom:6px}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;font-weight:750;padding:11px 18px;border-radius:8px;border:1px solid var(--ink)}
.button-primary{background:var(--ink);color:var(--paper)}
.button-primary:hover{background:#000}.button-secondary{background:transparent}.button-secondary:hover{background:var(--card)}
.section{padding:64px 0;border-bottom:1px solid var(--line)}
.section:last-of-type{border-bottom:0}
.section-grid{display:grid;grid-template-columns:250px minmax(0,1fr);gap:clamp(32px,7vw,88px)}
.section-label{margin:0;font-family:var(--font-mono);font-size:.75rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--steel)}
.content{max-width:var(--measure);min-width:0;width:100%}
.content h2{font-size:clamp(1.45rem,3vw,2rem);line-height:1.35;letter-spacing:-.025em;margin:0 0 18px}
.content h3{font-size:1.12rem;line-height:1.45;margin:34px 0 10px}
.content p{margin:0 0 18px;color:var(--ink-soft)}
.content strong{color:var(--ink)}
.content ul,.content ol{margin:0 0 20px;padding-left:22px;color:var(--ink-soft)}
.content li{margin-bottom:9px}
.content a{text-decoration-color:rgba(21,24,28,.35);text-underline-offset:3px}
.content a:hover{text-decoration-color:var(--ink)}
.answer-box{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--marker);padding:22px 24px;border-radius:10px;margin:0 0 30px}
.answer-box p:last-child{margin-bottom:0}
.answer-label{display:block;font-family:var(--font-mono);font-size:.72rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--steel);margin-bottom:8px}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:24px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:21px 22px}
.card .no{font-family:var(--font-mono);font-size:.72rem;color:var(--steel);letter-spacing:.06em}
.card h3{margin:8px 0 8px;font-size:1.05rem}.card p{font-size:.94rem;margin:0;color:var(--steel)}
.proof-list{display:grid;gap:0;margin:24px 0;border-top:1px solid var(--line)}
.proof-row{display:grid;grid-template-columns:minmax(150px,.45fr) minmax(0,1fr);gap:22px;padding:18px 0;border-bottom:1px solid var(--line)}
.proof-row strong{font-size:.96rem}.proof-row p{margin:0;color:var(--steel)}
.table-scroll{overflow-x:auto;max-width:100%;margin:24px 0;border:1px solid var(--line);border-radius:10px;background:var(--card);-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;min-width:680px;font-size:.92rem}
thead th{text-align:left;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.04em;color:var(--steel);background:var(--paper);padding:12px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
tbody td{padding:13px 14px;border-bottom:1px solid var(--line);vertical-align:top;color:var(--ink-soft)}
tbody tr:last-child td{border-bottom:0}tbody td:first-child{font-weight:700;color:var(--ink)}
.metric{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:15px 0;border-bottom:1px solid var(--line)}
.metric:last-child{border-bottom:0}.metric-name{font-weight:700}.metric-def{font-size:.9rem;color:var(--steel);text-align:right}
.callout{background:var(--marker-tint);border:1px solid rgba(171,145,0,.28);border-radius:10px;padding:20px 22px;margin:24px 0}
.callout strong{display:block;margin-bottom:5px}.callout p{margin:0}
.faq{display:grid;gap:12px}.faq details{background:var(--card);border:1px solid var(--line);border-radius:9px;padding:16px 18px}
.faq summary{cursor:pointer;font-weight:750}.faq details p{margin:12px 0 0;color:var(--steel)}
.link-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:28px}
.link-card{display:block;text-decoration:none;background:var(--card);border:1px solid var(--line);border-radius:9px;padding:18px;transition:transform .15s,border-color .15s}
.link-card:hover{transform:translateY(-2px);border-color:#BFC0B8}.link-card span{font-family:var(--font-mono);font-size:.7rem;color:var(--steel);text-transform:uppercase;letter-spacing:.05em}
.link-card strong{display:block;margin-top:6px;line-height:1.45}
.cta-band{background:var(--ink);color:var(--paper);padding:48px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px}.cta-inner h2{font-size:clamp(1.4rem,3vw,2rem);margin:0 0 8px}.cta-inner p{margin:0;color:rgba(251,251,248,.75)}
.cta-band .button{background:var(--marker);color:var(--ink);border-color:var(--marker);flex-shrink:0}
.site-footer{border-top:1px solid var(--line);padding:40px 0 48px;background:var(--card)}
.footer-logo{height:34px;width:auto;filter:brightness(0);margin-bottom:18px}
.footer-in{display:flex;flex-wrap:wrap;gap:20px 48px;justify-content:space-between;font-size:.85rem;color:var(--steel);line-height:1.8}
.footer-in p{margin:0}.footer-links{display:flex;flex-wrap:wrap;gap:10px 18px;max-width:460px}.footer-links a{text-underline-offset:3px}
.source-note{font-size:.83rem;color:var(--steel);border-top:1px solid var(--line);padding-top:16px;margin-top:28px}
@media (max-width:860px){
  .main-nav{display:none}.hero-grid,.section-grid{grid-template-columns:1fr}.hero-grid{gap:28px}.section-grid{gap:15px}.section{padding:48px 0}.link-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .header-cta{padding:9px 12px;font-size:.82rem}.page-hero{padding:38px 0 44px}.cards,.link-grid{grid-template-columns:1fr}.proof-row{grid-template-columns:1fr;gap:5px}.metric{display:block}.metric-def{text-align:left;margin-top:4px}.cta-inner{display:block}.cta-band .button{margin-top:22px;width:100%}.footer-links{display:grid;grid-template-columns:1fr 1fr}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.link-card{transition:none}}