:root {
  --mint: #1aa89a;
  --mint-dark: #127a71;
  --mint-soft: #d7f3ee;
  --mint-softer: #eef9f6;
  --bg: #f4faf8;
  --card: #ffffff;
  --text: #16302c;
  --muted: #4d6b66;
  --line: #d5ece7;
  --shadow: 0 10px 30px rgba(18, 72, 64, 0.06);
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC",
    "Noto Sans TC", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 420px at 10% -10%, #d8f6f0 0%, transparent 55%),
    radial-gradient(900px 380px at 100% 0%, #e8f7f3 0%, transparent 50%),
    var(--bg);
  line-height: 1.65;
  min-height: 100vh;
}

a {
  color: var(--mint-dark);
}

a:hover {
  color: var(--mint);
}

.skip {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--card);
  padding: 8px 12px;
  border-radius: 8px;
}

.skip:focus {
  left: 8px;
  z-index: 10;
}

.wrap {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
}

header.site {
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(14px);
  background: rgba(244, 250, 248, 0.86);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.logo {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--mint-soft);
  display: grid;
  place-items: center;
  color: var(--mint-dark);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a {
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 8px 10px;
  border-radius: 10px;
}

.nav-links a[aria-current="page"] {
  background: var(--mint-soft);
  color: var(--mint-dark);
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  padding: 3px;
}

.lang-switch button {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 700;
  font-size: 0.82rem;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
}

html[data-lang="en"] .lang-switch [data-set-lang="en"],
html[data-lang="zh-Hant"] .lang-switch [data-set-lang="zh-Hant"] {
  background: var(--mint);
  color: #fff;
}

.hero {
  padding: 36px 0 8px;
}

.kicker {
  display: inline-block;
  background: var(--mint-soft);
  color: var(--mint-dark);
  font-weight: 700;
  font-size: 0.82rem;
  padding: 6px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}

h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin: 0 0 10px;
}

.lede {
  font-size: 1.05rem;
  color: var(--muted);
  margin: 0 0 18px;
  max-width: 42rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 22px 20px;
  margin: 16px 0;
}

.card h2,
.policy h2 {
  margin: 0 0 10px;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.meta {
  color: var(--muted);
  font-size: 0.92rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  border-radius: 14px;
  padding: 12px 16px;
  font-weight: 700;
  min-height: 44px;
}

.btn-primary {
  background: var(--mint);
  color: #fff;
}

.btn-primary:hover {
  background: var(--mint-dark);
  color: #fff;
}

.btn-secondary {
  background: var(--card);
  color: var(--mint-dark);
  border: 1px solid var(--line);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.fact {
  background: var(--mint-softer);
  border-radius: 16px;
  padding: 14px 16px;
}

.fact strong {
  display: block;
  margin-bottom: 4px;
}

.policy h2 {
  margin-top: 28px;
}

.policy h2:first-child {
  margin-top: 0;
}

.policy p,
.policy li {
  color: #23423e;
}

.policy ul {
  padding-left: 1.2rem;
}

.quote {
  border-left: 4px solid var(--mint);
  background: var(--mint-softer);
  margin: 16px 0;
  padding: 12px 16px;
  border-radius: 0 14px 14px 0;
}

.quote p {
  margin: 0;
}

footer.site {
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 0.92rem;
}

footer.site nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 8px;
}

.lang-en,
.lang-zh {
  display: block;
}

html[data-lang="en"] .lang-zh,
html[data-lang="zh-Hant"] .lang-en {
  display: none;
}

.lang-label {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mint-dark);
  margin-bottom: 6px;
}

html[data-lang="en"] .lang-label,
html[data-lang="zh-Hant"] .lang-label {
  display: none;
}

@media (max-width: 640px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    width: 100%;
    justify-content: flex-start;
  }

  .card,
  .hero {
    padding-left: 0;
    padding-right: 0;
  }

  .card {
    padding: 18px 16px;
  }
}