:root{--brand:#4F46E5;--brand2:#7C3AED;--ink:#0F172A;--muted:#475569;--bg:#F8FAFC;--card:#FFFFFF;--line:#E2E8F0}
@media (prefers-color-scheme:dark){:root{--ink:#E2E8F0;--muted:#94A3B8;--bg:#0B1020;--card:#121a2f;--line:#1E293B}}
*{box-sizing:border-box}body{margin:0;font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
header{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;padding:28px 16px}
header .w{max-width:760px;margin:auto;display:flex;gap:14px;align-items:center}header img{width:52px;height:52px;border-radius:14px}
header h1{margin:0;font-size:24px}header p{margin:2px 0 0;opacity:.85}
main{max-width:760px;margin:24px auto;padding:0 16px 48px}section{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px 22px;margin-bottom:16px}
h2{font-size:18px;margin:0 0 8px}a{color:var(--brand)}@media (prefers-color-scheme:dark){a{color:#A5B4FC}}li{margin:4px 0}.muted{color:var(--muted);font-size:14px}