:root{--bg:#ffffff;--fg:#20242c;--muted:#5b6473;--line:#dcdfe4;--link:#1659a6}
@media (prefers-color-scheme:dark){:root{--bg:#111418;--fg:#e9eef3;--muted:#a9b4c0;--line:#2b323a;--link:#7db4ff}}
*{box-sizing:border-box}
body{max-width:800px;margin:0 auto;padding:40px 24px 80px;background:var(--bg);color:var(--fg);
 font:19px/1.8 -apple-system,"Apple SD Gothic Neo",system-ui,sans-serif}
nav{border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:28px;font-size:17px}
nav a{margin-right:6px}
a{color:var(--link)}
h1{line-height:1.35;font-size:30px;margin:0 0 6px}
h2{font-size:22px;margin:34px 0 8px}
p{margin:12px 0}
.meta{color:var(--muted);font-size:17px;border-bottom:1px solid var(--line);padding-bottom:16px}
footer{margin-top:44px;padding-top:16px;border-top:1px solid var(--line);color:var(--muted);font-size:16px}