:root {
  color-scheme: light;
  --background: #fbf5e9;
  --surface: #fffaf1;
  --text: #4a3728;
  --muted: #8a7868;
  --accent: #df7828;
  --line: #eadac6;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", sans-serif;
  line-height: 1.75;
}
main { width: min(760px, calc(100% - 32px)); margin: 0 auto; padding: 48px 0 80px; }
header, section {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 24px;
  margin-bottom: 16px;
}
h1 { margin: 0 0 4px; font-size: clamp(28px, 7vw, 42px); }
h2 { margin: 0 0 12px; font-size: 20px; }
p, li { font-size: 16px; }
.meta { color: var(--muted); margin: 0; }
a { color: var(--accent); }
nav { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 18px; }
ul { padding-left: 22px; }
code { background: #f2e8da; padding: 2px 6px; border-radius: 6px; }