:root{--bg:#fff;--fg:#1f2933;--muted:#52606d;--line:#d9e2ec;--accent:#243b53}
@media (prefers-color-scheme:dark){:root{--bg:#111820;--fg:#e4e7eb;--muted:#9aa5b1;--line:#2a3441;--accent:#9fb3c8}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,"Hiragino Sans","Yu Gothic UI","Meiryo",sans-serif;line-height:1.8}
.head,main,.foot{max-width:44rem;margin:0 auto;padding:0 16px}
.head{padding-top:48px;padding-bottom:16px;border-bottom:1px solid var(--line)}
h1{margin:0;font-size:1.6rem;color:var(--accent);letter-spacing:.04em}
h2{font-size:1.15rem;margin:32px 0 12px;color:var(--accent)}
.profile{margin:0}
.profile div{display:grid;grid-template-columns:7.5em 1fr;gap:8px;padding:12px 0;border-bottom:1px solid var(--line)}
.profile dt{color:var(--muted)}
.profile dd{margin:0;overflow-wrap:anywhere}
.foot{padding-top:32px;padding-bottom:48px;color:var(--muted);font-size:.85rem}
@media (max-width:420px){.profile div{grid-template-columns:1fr;gap:2px}}