:root {
  --fg: #1f2328;
  --muted: #59636e;
  --bg: #ffffff;
  --code-bg: #f6f8fa;
  --border: #d0d7de;
  --link: #0969da;
  --max: 46rem;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC",
    "Microsoft YaHei", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.25rem 3.5rem;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: 1.85rem;
  font-weight: 650;
}

h2 {
  margin: 1.75rem 0 0.55rem;
  font-size: 1.15rem;
  font-weight: 650;
}

p {
  margin: 0.55rem 0;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.links {
  color: var(--muted);
  margin: 0.85rem 0 1.1rem;
}

code,
pre {
  font-family: ui-monospace, "Noto Sans Mono", "SF Mono", Menlo, Consolas,
    monospace;
  font-size: 0.88em;
}

code {
  background: var(--code-bg);
  border-radius: 4px;
  padding: 0.1em 0.35em;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.9rem 1rem;
  overflow-x: auto;
}

pre code {
  background: none;
  padding: 0;
}