:root { color-scheme: light; }
body { margin: 0; background: #fff; color: #1a1a1a; font: 17px/1.6 "Times New Roman", "Songti SC", serif; }
main { max-width: 600px; margin: 0 auto; padding: 48px 20px 64px; }
h1 { font-size: 17px; font-weight: 600; margin: 0 0 28px; }
h2 { font-size: 17px; font-weight: 600; margin: 36px 0 6px; }
p { margin: 0 0 12px; }
.dim { color: #8a8a8a; }
a { color: inherit; }