.landing-page {
  --landing-ink: #14251c;
  --landing-muted: #506158;
  --landing-green: #16834e;
  --landing-line: #d8e5dc;
  margin: 0;
  min-height: 100vh;
  background: #f4f8f5;
  color: var(--landing-ink);
  font-family: Arial, sans-serif;
  line-height: 1.65;
}

.landing-page *,
.landing-page *::before,
.landing-page *::after {
  box-sizing: border-box;
}

.landing-page .landing-header,
.landing-page main,
.landing-page .landing-footer {
  width: min(68rem, calc(100% - 2.5rem));
  margin-inline: auto;
}

.landing-page .landing-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.25rem;
}

.landing-page .landing-brand {
  color: var(--landing-green);
  font-size: 1.05rem;
  font-weight: 800;
  text-decoration: none;
}

.landing-page .landing-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: 0;
  padding: 0;
  color: var(--landing-muted);
  font-size: .875rem;
  list-style: none;
}

.landing-page .landing-breadcrumb li + li::before {
  content: "/";
  margin-right: .45rem;
  color: #849188;
}

.landing-page a {
  color: #08643a;
  text-underline-offset: .2em;
}

.landing-page .landing-hero {
  padding: clamp(3.5rem, 9vw, 7rem) clamp(1.25rem, 5vw, 4rem);
  border: 1px solid var(--landing-line);
  border-radius: 1.5rem;
  background: #e7f3eb;
}

.landing-page .landing-hero h1 {
  max-width: 16ch;
  margin: 0;
  font-size: clamp(2.35rem, 6vw, 4.8rem);
  line-height: 1.02;
  letter-spacing: -.045em;
}

html[lang="ko"] .landing-page .landing-hero h1 {
  word-break: keep-all;
}

.landing-page .landing-hero p {
  max-width: 44rem;
  margin: 1.5rem 0 0;
  color: var(--landing-muted);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
}

.landing-page .landing-section {
  padding-block: clamp(3rem, 7vw, 5.5rem);
  border-bottom: 1px solid var(--landing-line);
}

.landing-page .landing-section > h2 {
  max-width: 24ch;
  margin: 0 0 1.75rem;
  font-size: clamp(1.65rem, 3.5vw, 2.45rem);
  line-height: 1.15;
}

.landing-page .landing-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.landing-page .landing-card {
  padding: 1.5rem;
  border: 1px solid var(--landing-line);
  border-radius: 1rem;
  background: #fff;
}

.landing-page .landing-card h3,
.landing-page .landing-card p {
  margin-top: 0;
}

.landing-page .landing-card p {
  margin-bottom: 0;
  color: var(--landing-muted);
}

.landing-page .landing-limitations {
  padding-inline: clamp(1rem, 4vw, 2rem);
  background: #fffbea;
}

.landing-page .landing-faq-item {
  border-top: 1px solid var(--landing-line);
  background: #fff;
}

.landing-page .landing-faq-item:last-child {
  border-bottom: 1px solid var(--landing-line);
}

.landing-page .landing-faq-item summary {
  padding: 1.15rem .25rem;
  font-weight: 700;
  cursor: pointer;
}

.landing-page .landing-faq-item p {
  max-width: 50rem;
  margin: 0;
  padding: 0 .25rem 1.25rem;
  color: var(--landing-muted);
}

.landing-page .landing-download {
  text-align: center;
}

.landing-page .landing-download > h2 {
  margin-inline: auto;
}

.landing-page .landing-store-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .75rem;
}

.landing-page .landing-store-links a {
  display: inline-block;
  min-width: 12rem;
  padding: .85rem 1.2rem;
  border: 2px solid var(--landing-green);
  border-radius: .75rem;
  background: var(--landing-green);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
}

.landing-page .landing-disclosures {
  margin-block: 2rem;
  padding: 1.25rem;
  border: 1px solid var(--landing-line);
  border-radius: .75rem;
  background: #fff;
  font-size: .9rem;
}

.landing-page .landing-disclosures dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: .35rem 1rem;
  margin: 0;
}

.landing-page .landing-disclosures dt {
  color: var(--landing-muted);
  font-weight: 700;
}

.landing-page .landing-disclosures dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.landing-page .landing-footer {
  padding-block: 2rem;
  color: var(--landing-muted);
  font-size: .875rem;
}

.landing-page :focus-visible {
  outline: 3px solid #ffbf47;
  outline-offset: 3px;
}

@media (max-width: 720px) {
  .landing-page .landing-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .landing-page .landing-card-grid {
    grid-template-columns: 1fr;
  }

  .landing-page .landing-store-links,
  .landing-page .landing-store-links a {
    width: 100%;
  }

  .landing-page .landing-disclosures dl {
    grid-template-columns: 1fr;
  }

  .landing-page .landing-disclosures dd + dt {
    margin-top: .55rem;
  }
}

@media (max-width: 420px) {
  html[lang="ko"] .landing-page .landing-hero h1 {
    font-size: clamp(1.8rem, 8vw, 2.1rem);
    line-height: 1.12;
  }
}