:root { --ink: #172b36; --muted: #6b777d; --bg: #f8faf7; --link: #136fbf; --line: #e4e4e4; color-scheme: light dark; }
@media (prefers-color-scheme: dark) { :root { --ink: #e8ece9; --muted: #9aa5a0; --bg: #101512; --link: #6cb4f0; --line: #2a332d; } }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.7 -apple-system, "PingFang TC", "Noto Sans TC", sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 24px 16px 64px; }
h1 { font-size: 26px; line-height: 1.3; margin: 8px 0 4px; }
h2 { font-size: 18px; margin: 28px 0 8px; padding-top: 16px; border-top: 1px solid var(--line); }
.meta { color: var(--muted); font-size: 14px; }
a { color: var(--link); }
ul, ol { padding-left: 22px; }
li { margin: 4px 0; }