:root{
  --bg:#F4F5F3; --surface:#FFFFFF; --surface-2:#EEF1EF; --line:#D9DEDB;
  --text:#141816; --muted:#5B635F; --faint:#8A928D;
  --accent:#2A5D7C; --accent-2:#1B3F55; --accent-soft:rgba(42,93,124,.09);
  --gold:#C48A12; --gold-soft:rgba(214,158,32,.14);
  --radius:18px; --max:1080px;
  --shadow:0 1px 2px rgba(20,24,22,.04),0 8px 28px rgba(20,24,22,.06);
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0E1110; --surface:#151917; --surface-2:#1B201E; --line:#2A302D;
    --text:#ECEAE3; --muted:#9BA29D; --faint:#6E7671;
    --accent:#8EB9D2; --accent-2:#5E93B3; --accent-soft:rgba(142,185,210,.10);
    --gold:#FFD36B; --gold-soft:rgba(255,196,64,.10);
    --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 28px rgba(0,0,0,.25);
  }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);
  font:16px/1.7 system-ui,-apple-system,"Apple SD Gothic Neo","Pretendard","Malgun Gothic","Noto Sans KR",sans-serif;
  word-break:keep-all;overflow-wrap:break-word}
a{color:var(--accent)}
img{max-width:100%;height:auto}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:var(--surface);padding:8px 12px;border-radius:8px;z-index:10}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* Header */
.site-header{position:sticky;top:0;z-index:5;background:color-mix(in srgb,var(--bg) 86%,transparent);
  backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);
  border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:700;font-size:18px;letter-spacing:-.01em}
.brand img{width:30px;height:30px}
.nav{display:flex;gap:22px}
.nav a{color:var(--muted);text-decoration:none;font-size:15px}
.nav a:hover{color:var(--text)}

/* Hero */
.hero{padding:96px 0 72px}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--accent);
  background:var(--accent-soft);padding:5px 12px;border-radius:999px;margin:0 0 20px}
.hero h1{font-size:clamp(34px,6vw,56px);line-height:1.15;letter-spacing:-.025em;margin:0 0 18px}
.hero .lead{font-size:clamp(17px,2.2vw,20px);color:var(--muted);max-width:640px;margin:0 0 32px}
.btns{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:12px;font-weight:600;font-size:15px;text-decoration:none;border:1px solid transparent}
.btn-primary{background:var(--accent);color:#fff}
@media (prefers-color-scheme: dark){.btn-primary{color:#0E1110}}
.btn-primary:hover{filter:brightness(1.08)}
.btn-ghost{border-color:var(--line);color:var(--text);background:var(--surface)}
.btn-ghost:hover{border-color:var(--muted)}

/* Sections */
section.block{padding:64px 0;border-top:1px solid var(--line)}
.block h2{font-size:clamp(24px,3.4vw,32px);letter-spacing:-.02em;line-height:1.25;margin:0 0 8px}
.block .sub{color:var(--muted);margin:0 0 32px}

/* App card */
.app-card{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.app-main{padding:36px}
.app-head{display:flex;align-items:center;gap:16px;margin:0 0 18px}
.app-head img{width:72px;height:72px;flex:none}
.app-head h3{font-size:22px;line-height:1.3;margin:0}
.app-head .platform{margin:4px 0 0;color:var(--muted);font-size:14px}
.app-tagline{font-size:17px;font-weight:600;margin:0 0 12px}
.app-desc{color:var(--muted);margin:0 0 20px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 24px;padding:0;list-style:none}
.chips li{font-size:13px;font-weight:600;padding:5px 11px;border-radius:999px;background:var(--gold-soft);color:var(--text)}
.app-links{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.status{font-size:13px;color:var(--muted);border:1px dashed var(--line);border-radius:10px;padding:8px 12px}
.app-side{background:var(--surface-2);padding:36px;border-left:1px solid var(--line)}
.app-side h4{font-size:15px;margin:0 0 14px}
.features{list-style:none;margin:0 0 24px;padding:0}
.features li{position:relative;padding-left:22px;margin:0 0 10px;font-size:15px}
.features li::before{content:"";position:absolute;left:2px;top:.62em;width:8px;height:8px;border-radius:50%;background:var(--accent)}
.notes{margin:0;padding:16px 18px;border-radius:12px;background:var(--surface);border:1px solid var(--line);font-size:14px;color:var(--muted)}
.notes p{margin:0 0 6px}
.notes p:last-child{margin:0}

/* Contact */
.contact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.contact-item{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px}
.contact-item dt{font-size:13px;color:var(--muted);margin:0 0 6px}
.contact-item dd{margin:0;font-weight:600;font-size:16px}

/* Footer */
.site-footer{border-top:1px solid var(--line);padding:36px 0 48px;color:var(--muted);font-size:14px}
.site-footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:20px}
.biz{margin:0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:4px 18px}
.biz b{font-weight:600;color:var(--text);margin-right:6px}
.footer-links{display:flex;gap:18px;align-items:flex-start}
.footer-links a{color:var(--text);font-weight:600;text-decoration:none}
.footer-links a:hover{text-decoration:underline}
.copy{flex-basis:100%;margin:6px 0 0;color:var(--faint)}

/* Policy page */
.policy{max-width:760px;margin:0 auto;padding:56px 20px 72px}
.policy-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:44px 44px 36px}
.policy h1{font-size:clamp(24px,3.6vw,30px);line-height:1.3;letter-spacing:-.015em;margin:0 0 8px}
.policy .meta{color:var(--muted);font-size:14px;margin:0 0 28px}
.policy h2{font-size:17px;margin:30px 0 8px;padding-top:22px;border-top:1px solid var(--line)}
.policy p,.policy li{margin:0 0 8px}
.policy ul{padding-left:20px;margin:0}
.policy .en{margin-top:40px;padding-top:22px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
.back{display:inline-flex;align-items:center;gap:6px;margin:0 0 20px;font-size:14px;color:var(--muted);text-decoration:none}
.back:hover{color:var(--text)}

@media (max-width:860px){
  .app-card{grid-template-columns:1fr}
  .app-side{border-left:0;border-top:1px solid var(--line)}
  .contact-grid{grid-template-columns:1fr}
}
@media (max-width:560px){
  .nav{gap:14px}
  .nav a{font-size:14px}
  .nav .hide-sm{display:none}
  .hero{padding:64px 0 52px}
  section.block{padding:52px 0}
  .app-main,.app-side{padding:26px 22px}
  .app-head img{width:60px;height:60px}
  .policy{padding:28px 14px 56px}
  .policy-card{padding:28px 20px 24px;border-radius:14px}
  .brand{font-size:17px}
}