:root { --bg: #fdfbf3; --fg: #2b2416; --muted: #6b6250; --paper: #fdec97; --line: #e9e2c8; --link: #8a5a00; }
@media (prefers-color-scheme: dark) { :root { --bg: #1d1b16; --fg: #f1ead6; --muted: #b9b099; --paper: #6b5d22; --line: #3a362b; --link: #f2c94c; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.75 -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Helvetica Neue", sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 48px 20px 80px; }
header { display: flex; align-items: center; gap: 14px; margin-bottom: 32px; }
.note { width: 44px; height: 44px; background: var(--paper); border-radius: 3px; box-shadow: 0 2px 4px rgba(0,0,0,.15); transform: rotate(-3deg); }
h1 { font-size: 28px; margin: 0; }
h2 { font-size: 20px; margin: 40px 0 8px; padding-top: 16px; border-top: 1px solid var(--line); }
h3 { font-size: 16px; margin: 24px 0 4px; }
p, li { color: var(--fg); }
small, .muted { color: var(--muted); }
a { color: var(--link); }
nav { display: flex; gap: 18px; margin-top: 8px; }
.lang { margin-top: 56px; }