:root {
  --bg: #f7f5f0;
  --surface: #ffffff;
  --text: #24211d;
  --muted: #625b52;
  --line: #e2ddd3;
  --accent: #2f6f62;
  --accent-soft: #e3efeb;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #181614;
    --surface: #221f1c;
    --text: #ece7df;
    --muted: #b0a79b;
    --line: #3a352f;
    --accent: #7cc5b4;
    --accent-soft: #23332f;
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.75;
}

a {
  color: var(--accent);
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 16px;
}

.top {
  border-bottom: 1px solid var(--line);
}

.top .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 56px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.brand img {
  width: 32px;
  height: 32px;
}

.lang {
  font-size: 15px;
}

main {
  padding: 40px 0 56px;
}

.hero {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 40px;
}

.hero img {
  flex: none;
  width: 128px;
  height: 128px;
}

h1 {
  margin: 0 0 8px;
  font-size: 40px;
  line-height: 1.2;
}

.tagline {
  margin: 0;
  color: var(--muted);
  font-size: 19px;
}

h2 {
  margin: 40px 0 12px;
  font-size: 23px;
  line-height: 1.4;
}

h3 {
  margin: 24px 0 8px;
  font-size: 18px;
}

ul {
  padding-left: 1.3em;
}

li + li {
  margin-top: 6px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin: 16px 0;
  padding: 0;
  list-style: none;
}

.cards li {
  margin: 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

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

.note {
  padding: 16px;
  border-radius: 8px;
  background: var(--accent-soft);
}

.statement {
  margin: 16px 0;
  padding: 16px;
  border-left: 4px solid var(--accent);
  background: var(--surface);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 16px;
}

th,
td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  white-space: nowrap;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
  overflow-wrap: anywhere;
}

.meta {
  color: var(--muted);
}

footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 15px;
}

footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  padding-top: 20px;
  padding-bottom: 32px;
}

@media (max-width: 560px) {
  body {
    font-size: 16px;
  }

  .hero {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .hero img {
    width: 96px;
    height: 96px;
  }

  h1 {
    font-size: 32px;
  }

  th {
    white-space: normal;
  }
}