:root{
    --ink:#0F172A;
    --ink-2:#334155;
    --ink-3:#64748B;
    --line:#E2E8F0;
    --bg:#FFFFFF;
    --bg-2:#F8FAFC;
    --accent:#2563EB;
    --max:1080px;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Pretendard","Noto Sans KR",
      "Malgun Gothic",system-ui,sans-serif;
    color:var(--ink);background:var(--bg);
    line-height:1.7;-webkit-font-smoothing:antialiased;
  }
  .wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

  /* header */
  header{
    position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);
    backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line);
  }
  .nav{display:flex;align-items:center;justify-content:space-between;height:64px}
  .logo{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.02em;font-size:17px;text-decoration:none;color:var(--ink)}
  .logo .mark{width:28px;height:28px;border-radius:8px;background:var(--ink);color:#fff;display:grid;place-items:center;font-family:Georgia,serif;font-size:16px}
  .nav ul{display:flex;gap:26px;list-style:none}
  .nav a.link{color:var(--ink-2);text-decoration:none;font-size:14.5px}
  .nav a.link:hover{color:var(--accent)}
  @media(max-width:640px){.nav ul{display:none}}

  /* hero */
  .hero{padding:96px 0 72px;border-bottom:1px solid var(--line)}
  .eyebrow{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);font-weight:600}
  h1{font-size:clamp(32px,5.2vw,52px);line-height:1.25;letter-spacing:-.03em;margin:16px 0 20px;font-weight:800}
  .lede{font-size:clamp(16px,2vw,19px);color:var(--ink-2);max-width:640px}
  .cta{margin-top:32px;display:flex;gap:12px;flex-wrap:wrap}
  .btn{display:inline-block;padding:12px 22px;border-radius:10px;font-size:15px;font-weight:600;text-decoration:none;transition:.15s}
  .btn-primary{background:var(--ink);color:#fff}
  .btn-primary:hover{background:var(--accent)}
  .btn-ghost{border:1px solid var(--line);color:var(--ink-2)}
  .btn-ghost:hover{border-color:var(--ink-3)}

  /* sections */
  section{padding:80px 0}
  section + section{border-top:1px solid var(--line)}
  h2{font-size:clamp(24px,3.4vw,32px);letter-spacing:-.02em;font-weight:700;margin-bottom:14px}
  .sub{color:var(--ink-3);margin-bottom:40px;max-width:620px}

  .grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
  .card{border:1px solid var(--line);border-radius:16px;padding:28px;background:var(--bg-2)}
  .card h3{font-size:19px;font-weight:700;letter-spacing:-.01em;margin-bottom:8px}
  .card .tag{display:inline-block;font-size:12px;font-weight:600;color:var(--ink-3);
    border:1px solid var(--line);background:#fff;border-radius:999px;padding:3px 10px;margin-bottom:14px}
  .card p{color:var(--ink-2);font-size:15px}
  .card .pkg{margin-top:16px;font-size:13px;color:var(--ink-3);font-family:ui-monospace,SFMono-Regular,Menlo,monospace}

  .values{display:grid;gap:28px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
  .values h3{font-size:17px;font-weight:700;margin-bottom:6px}
  .values p{color:var(--ink-2);font-size:15px}
  .num{font-family:Georgia,serif;font-size:14px;color:var(--accent);font-weight:700;letter-spacing:.08em}

  /* contact */
  .contact-box{border:1px solid var(--line);border-radius:16px;padding:32px;display:grid;gap:18px;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
  .contact-box .label{font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);font-weight:600;margin-bottom:4px}
  .contact-box a{color:var(--accent);text-decoration:none}
  .contact-box a:hover{text-decoration:underline}

  /* footer */
  footer{border-top:1px solid var(--line);background:var(--bg-2);padding:44px 0;font-size:13.5px;color:var(--ink-3)}
  footer .biz{display:grid;gap:4px 24px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));margin-bottom:22px}
  footer .legal{display:flex;gap:18px;flex-wrap:wrap;padding-top:18px;border-top:1px solid var(--line)}
  footer a{color:var(--ink-2);text-decoration:none}
  footer a:hover{color:var(--accent)}

.card .cta{margin-top:20px}.card a{color:var(--accent)}.card .btn-primary{color:#fff}.detail{max-width:820px}.detail ul,.detail ol{padding-left:24px}.detail li{margin:12px 0}.detail h3{margin:22px 0 6px}.detail p{margin:12px 0}.breadcrumb{padding-top:24px;font-size:14px}.breadcrumb a{color:var(--accent)}.note{color:var(--ink-2);background:var(--bg-2);padding:20px;border-radius:12px}.related{display:flex;flex-wrap:wrap;gap:16px}.related a{color:var(--accent)}a:focus-visible{outline:3px solid var(--accent);outline-offset:4px}section[id]{scroll-margin-top:80px}@media(max-width:360px){.grid{grid-template-columns:1fr}.wrap{padding:0 16px}.card{padding:20px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}