:root {
  --bg: #f7f4ee;
  --paper: #fffdf8;
  --ink: #1f1b16;
  --muted: #6d6258;
  --line: #ded4c7;
  --accent: #8a4b20;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, "Noto Sans TC", sans-serif;
  line-height: 1.65;
}

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

.site-header,
.site-footer {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px;
}

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

.brand {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
}

.tagline {
  margin: 4px 0 0;
  color: var(--muted);
}

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 32px 24px 56px;
}

.page {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
}

h1 {
  max-width: 780px;
  margin: 0 0 16px;
  font-size: 40px;
  line-height: 1.1;
}

h2 {
  margin-top: 32px;
  font-size: 22px;
}

.short-answer {
  max-width: 780px;
  font-size: 19px;
}

.zh-summary,
.notice,
.definition {
  border-left: 4px solid var(--line);
  padding-left: 16px;
}

.notice {
  color: #4a3225;
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  padding: 0;
  list-style: none;
}

.link-grid a {
  display: block;
  min-height: 100%;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffaf1;
  text-decoration: none;
}

.small {
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 640px) {
  h1 {
    font-size: 31px;
  }

  .page {
    padding: 20px;
  }
}