:root{color-scheme:light dark;--fg:#1a1a1a;--muted:#5f5f66;--bg:#fff;--rule:#e3e3e6;--code:#f3f3f5}
@media (prefers-color-scheme:dark){
  :root{--fg:#e8e8ea;--muted:#a0a0a8;--bg:#121215;--rule:#2a2a30;--code:#1e1e23}
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);line-height:1.9;
  font-family:system-ui,-apple-system,"Hiragino Sans","Noto Sans JP",sans-serif}
main{max-width:44rem;margin:0 auto;padding:3rem 1.25rem 5rem}
h1{font-size:1.5rem;margin:0 0 .35rem;line-height:1.4}
.updated{color:var(--muted);font-size:.85rem;margin:0 0 2.5rem}
h2{font-size:1.05rem;margin:2.5rem 0 .6rem;padding-top:1.5rem;border-top:1px solid var(--rule)}
p,li{font-size:.95rem}
ul{padding-left:1.3rem}
li{margin-bottom:.4rem}
code{background:var(--code);padding:.1rem .35rem;border-radius:.25rem;font-size:.85em}
.note{background:var(--code);border-radius:.5rem;padding:1rem 1.15rem;font-size:.9rem;color:var(--muted)}
a{color:inherit}