:root{--page:#f2f4f6;--card:#fff;--ink:#121417;--muted:#5b6470;--line:#e1e5ea;--accent:#1f5c4a;--sel:#e8f0ec}
@media (prefers-color-scheme:dark){:root{--page:#0f1114;--card:#1a1d22;--ink:#eceef1;--muted:#9aa3ae;--line:#2a2f36;--accent:#5fc29e;--sel:#1d2b26}}
*{box-sizing:border-box}
body{margin:0;background:var(--page);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Noto Sans JP",sans-serif;line-height:1.8;font-size:16px}
.wrap{max-width:720px;margin:0 auto;padding:32px 20px 64px}
header{display:flex;align-items:center;gap:14px;margin-bottom:28px}
header img{width:56px;height:56px;border-radius:13px}
header a{color:inherit;text-decoration:none}
header .name{font-size:20px;font-weight:700}
header .tag{font-size:13px;color:var(--muted)}
h1{font-size:26px;line-height:1.4;margin:0 0 6px}
.date{color:var(--muted);font-size:13px;margin-bottom:24px}
h2{font-size:18px;margin:32px 0 8px}
.card{background:var(--card);border-radius:16px;padding:20px 22px;margin:14px 0}
ul{padding-left:1.3em;margin:8px 0}
li{margin:4px 0}
a{color:var(--accent)}
.muted{color:var(--muted);font-size:14px}
.q{font-weight:700;margin:0 0 4px}
.q+p{margin:0}
.links{display:flex;gap:18px;flex-wrap:wrap;margin-top:8px}
footer{margin-top:48px;color:var(--muted);font-size:13px;border-top:1px solid var(--line);padding-top:16px}