:root {
  color-scheme: light dark;
  --background: #f3f7f8;
  --surface: rgba(255, 255, 255, 0.86);
  --surface-strong: #ffffff;
  --text: #102a32;
  --secondary: #526a72;
  --accent: #087d8d;
  --accent-strong: #006474;
  --border: rgba(16, 42, 50, 0.12);
  --shadow: 0 18px 50px rgba(7, 53, 63, 0.09);
  --content-width: 760px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--background);
  font-family:
    -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", sans-serif;
  line-height: 1.65;
  text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 0%, rgba(22, 151, 164, 0.13), transparent 34rem),
    var(--background);
}

a {
  color: var(--accent-strong);
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 0.12em;
}

a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
  border-radius: 4px;
}

.site-header,
.site-footer,
main {
  width: min(calc(100% - 40px), var(--content-width));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.01em;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: white;
  background: var(--accent);
  border-radius: 11px;
  font-size: 19px;
  line-height: 1;
}

.language-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding-inline: 14px;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}

main {
  padding-block: 44px 72px;
}

.hero {
  padding-block: 28px 38px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-strong);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

h1,
h2 {
  line-height: 1.2;
  letter-spacing: -0.025em;
}

h1 {
  max-width: 18ch;
  margin: 0;
  font-size: clamp(2.15rem, 6vw, 3.7rem);
}

h2 {
  margin: 0 0 12px;
  font-size: 1.2rem;
}

p {
  margin: 0;
}

.lede {
  max-width: 58ch;
  margin-top: 20px;
  color: var(--secondary);
  font-size: 1.08rem;
}

.meta {
  margin-top: 16px;
  color: var(--secondary);
  font-size: 0.9rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.card,
.policy-section,
.notice {
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.card {
  min-height: 196px;
  display: flex;
  flex-direction: column;
  padding: 24px;
  border-radius: 22px;
}

.card p {
  color: var(--secondary);
}

.card-link {
  margin-top: auto;
  padding-top: 24px;
  font-weight: 700;
}

.policy-list {
  display: grid;
  gap: 14px;
}

.policy-section {
  padding: 24px;
  border-radius: 20px;
}

.policy-section p + p,
.policy-section ul + p {
  margin-top: 12px;
}

.policy-section ul,
.policy-section ol {
  margin: 12px 0 0;
  padding-left: 1.3em;
}

.policy-section li + li {
  margin-top: 8px;
}

.notice {
  margin-bottom: 18px;
  padding: 18px 20px;
  border-radius: 16px;
  color: var(--secondary);
}

.notice strong {
  color: var(--text);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-block: 28px 38px;
  border-top: 1px solid var(--border);
  color: var(--secondary);
  font-size: 0.86rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

@media (max-width: 620px) {
  .site-header,
  .site-footer,
  main {
    width: min(calc(100% - 28px), var(--content-width));
  }

  main {
    padding-block: 24px 54px;
  }

  .hero {
    padding-block: 20px 30px;
  }

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

  .site-footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-transparency: reduce) {
  .card,
  .policy-section,
  .notice,
  .language-link {
    background: var(--surface-strong);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #071b21;
    --surface: rgba(14, 42, 49, 0.82);
    --surface-strong: #0e2a31;
    --text: #e7f2f4;
    --secondary: #a5bbc0;
    --accent: #35a9b7;
    --accent-strong: #72d5df;
    --border: rgba(210, 236, 240, 0.13);
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.2);
  }

  body {
    background:
      radial-gradient(circle at 12% 0%, rgba(41, 154, 168, 0.18), transparent 34rem),
      var(--background);
  }
}

@media print {
  :root {
    color-scheme: light;
  }

  body {
    background: white;
  }

  .language-link,
  .site-footer {
    display: none;
  }

  main {
    width: 100%;
    padding: 0;
  }

  .card,
  .policy-section,
  .notice {
    box-shadow: none;
    background: white;
  }
}