:root {
  color-scheme: light;
  --ink: #17243b;
  --muted: #64748b;
  --line: #d7e1ea;
  --soft: #f4f8fb;
  --teal: #0e756f;
  --teal-dark: #0b5f5b;
  --teal-soft: #e7f5f3;
  --danger: #c9362b;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(23, 36, 59, 0.09);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); line-height: 1.65; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid rgba(14, 117, 111, 0.3); outline-offset: 3px; }
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.94); backdrop-filter: blur(16px); border-bottom: 1px solid var(--line); }
.nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 800; letter-spacing: -.02em; }
.logo { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; background: linear-gradient(145deg, #0c5060, #0e756f); color: white; box-shadow: 0 8px 20px rgba(14,117,111,.2); }
.logo svg { width: 26px; height: 26px; }
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a { text-decoration: none; color: var(--muted); font-size: 14px; font-weight: 700; }
.nav-links a:hover { color: var(--ink); }
.button { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; padding: 0 18px; border-radius: 12px; text-decoration: none; font-weight: 800; border: 1px solid transparent; cursor: pointer; }
.button.primary { background: var(--teal); color: white; box-shadow: 0 12px 30px rgba(14,117,111,.22); }
.button.primary:hover { background: var(--teal-dark); }
.button.secondary { border-color: var(--line); background: white; color: var(--ink); }
.hero { padding: 96px 0 78px; background: radial-gradient(circle at 82% 22%, #e6f6f3 0, transparent 32%), linear-gradient(#fff, #f8fbfd); border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: 1.03fr .97fr; align-items: center; gap: 72px; }
.eyebrow { color: var(--teal); font-size: 12px; font-weight: 900; letter-spacing: .13em; text-transform: uppercase; }
h1 { margin: 14px 0 20px; font-size: clamp(44px, 5.5vw, 72px); line-height: 1.08; letter-spacing: -.055em; }
.lead { max-width: 650px; margin: 0; color: var(--muted); font-size: clamp(18px, 2vw, 21px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.trust-note { margin-top: 24px; color: var(--muted); font-size: 13px; }
.product-frame { position: relative; border: 1px solid #cfdde6; background: white; border-radius: 24px; padding: 18px; box-shadow: var(--shadow); }
.product-frame::before { content: ""; position: absolute; inset: -16px 32px auto; height: 30px; border-radius: 50%; background: rgba(14,117,111,.08); filter: blur(20px); z-index: -1; }
.panel-head { display: flex; align-items: center; justify-content: space-between; padding: 2px 2px 15px; border-bottom: 1px solid var(--line); }
.panel-brand { display: flex; align-items: center; gap: 10px; font-weight: 850; }
.pill { font-size: 11px; font-weight: 800; color: var(--teal-dark); background: var(--teal-soft); padding: 5px 9px; border-radius: 999px; }
.step-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; padding: 16px 0; }
.step { min-height: 58px; border-radius: 12px; padding: 10px; background: var(--soft); color: #8b98a9; font-size: 12px; font-weight: 800; }
.step strong { display: block; color: inherit; font-size: 18px; line-height: 1; margin-bottom: 5px; }
.step.active { background: var(--teal-soft); color: var(--teal-dark); }
.scan-card { padding: 18px; border: 1px solid var(--line); border-radius: 16px; }
.scan-card h2 { margin: 0 0 8px; font-size: 23px; letter-spacing: -.03em; }
.scan-card p { margin: 0; color: var(--muted); font-size: 14px; }
.result-row { display: flex; align-items: center; gap: 12px; padding: 13px 0; border-bottom: 1px solid #edf1f5; }
.result-row:last-child { border-bottom: 0; }
.status-dot { width: 28px; height: 28px; border-radius: 9px; flex: 0 0 auto; display: grid; place-items: center; background: var(--teal-soft); color: var(--teal-dark); font-weight: 900; }
.status-dot.warn { background: #fff0ed; color: var(--danger); }
.result-copy strong { display: block; font-size: 14px; }
.result-copy span { color: var(--muted); font-size: 12px; }
section { padding: 88px 0; }
.section-heading { max-width: 720px; margin-bottom: 44px; }
.section-heading h2 { margin: 8px 0 14px; font-size: clamp(34px, 4vw, 52px); line-height: 1.12; letter-spacing: -.045em; }
.section-heading p { margin: 0; color: var(--muted); font-size: 18px; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.feature { padding: 34px 30px; border-right: 1px solid var(--line); }
.feature:last-child { border-right: 0; }
.feature-index { color: var(--teal); font-size: 12px; font-weight: 900; letter-spacing: .12em; }
.feature h3 { margin: 18px 0 10px; font-size: 23px; letter-spacing: -.03em; }
.feature p { margin: 0; color: var(--muted); }
.band { background: var(--ink); color: white; }
.band .section-heading p, .band .muted { color: #bdc9d8; }
.boundaries { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.boundary { padding: 28px 0; border-top: 1px solid rgba(255,255,255,.2); }
.boundary h3 { margin: 0 0 14px; font-size: 20px; }
.boundary ul { margin: 0; padding-left: 20px; color: #cfdae6; }
.workflow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.workflow article { position: relative; padding-top: 24px; border-top: 3px solid var(--teal); }
.workflow span { color: var(--teal); font-size: 12px; font-weight: 900; letter-spacing: .1em; }
.workflow h3 { margin: 14px 0 8px; font-size: 22px; }
.workflow p { margin: 0; color: var(--muted); }
.cta { padding: 64px 0 80px; }
.cta-box { padding: 46px; border-radius: 24px; background: var(--teal-soft); display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.cta-box h2 { margin: 0 0 8px; font-size: 34px; letter-spacing: -.04em; }
.cta-box p { margin: 0; color: var(--muted); }
.site-footer { border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--muted); font-size: 13px; }
.footer-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; }
.footer-links { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); }
.legal-main { padding: 72px 0 96px; }
.legal { max-width: 840px; }
.legal h1 { font-size: clamp(38px, 5vw, 58px); }
.legal h2 { margin-top: 48px; font-size: 25px; letter-spacing: -.03em; }
.legal h3 { margin-top: 30px; font-size: 18px; }
.legal p, .legal li { color: #435168; }
.notice { padding: 18px 20px; border: 1px solid #bddbd7; background: var(--teal-soft); border-radius: 14px; color: var(--teal-dark); }
.support-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 38px; align-items: start; }
.support-card { border: 1px solid var(--line); border-radius: 18px; padding: 26px; box-shadow: 0 10px 30px rgba(23,36,59,.05); }
.support-card h2 { margin-top: 0; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: #eef3f7; border-radius: 6px; padding: 2px 5px; font-size: .92em; }
@media (max-width: 860px) {
  .nav-links a:not(.button) { display: none; }
  .hero { padding-top: 68px; }
  .hero-grid, .support-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 44px; }
  .features, .workflow { grid-template-columns: 1fr; }
  .feature { border-right: 0; border-bottom: 1px solid var(--line); }
  .feature:last-child { border-bottom: 0; }
  .boundaries { grid-template-columns: 1fr; }
  .cta-box { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 560px) {
  .container { width: min(100% - 28px, 1120px); }
  .nav { min-height: 64px; }
  .brand span:last-child { display: none; }
  h1 { font-size: 43px; }
  .hero { padding: 54px 0 56px; }
  section { padding: 64px 0; }
  .product-frame { padding: 13px; border-radius: 19px; }
  .cta-box { padding: 30px 24px; }
  .footer-row { flex-direction: column; }
}