:root { color-scheme: light; }
body { margin: 0; background: #fff; color: #222; font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif; line-height: 1.8; }
main { max-width: 680px; margin: 0 auto; padding: 40px 16px 64px; }
h1 { font-size: 1.5rem; line-height: 1.4; margin: 0 0 8px; }
h2 { font-size: 1.1rem; margin: 32px 0 8px; }
p, ul { margin: 8px 0; }
ul { padding-left: 1.4em; }
a { color: #0b57d0; }
.meta { color: #666; font-size: .875rem; }