:root{--bg:#F5F7FC;--fg:#121829;--muted:#4A5370;--card:#FFFFFF;--line:#DCE2F0;--a1:#2F6FE0;--a2:#0E9BB5;--link:#1F5FD1;color-scheme:light dark}
@media (prefers-color-scheme:dark){:root{--bg:#0B1020;--fg:#E8ECF7;--muted:#9AA4BF;--card:#121A30;--line:#222C47;--a1:#4C8DFF;--a2:#22D3EE;--link:#7FB0FF}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
.wrap{max-width:760px;margin:0 auto;padding:24px 16px 48px}
header.top{display:flex;align-items:center;gap:10px;margin-bottom:28px}
header.top a{color:var(--fg);text-decoration:none;font-weight:700;font-size:1.15rem}
.mark{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--a1),var(--a2));display:inline-block;flex:none}
h1{font-size:1.9rem;line-height:1.25;margin:0 0 6px}
h2{font-size:1.2rem;margin:32px 0 8px}
h3{font-size:1.02rem;margin:20px 0 4px}
p,li{color:var(--fg)}
.muted,small{color:var(--muted)}
a{color:var(--link)}
.grad{background:linear-gradient(90deg,var(--a1),var(--a2));-webkit-background-clip:text;background-clip:text;color:transparent}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px;margin:16px 0}
.note{border-left:4px solid var(--a2)}
code,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em}
pre{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px;overflow-x:auto;white-space:pre-wrap;word-break:break-word}
table{width:100%;border-collapse:collapse;margin:12px 0;font-size:.95em;display:block;overflow-x:auto}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--muted);font-weight:600}
.err{scroll-margin-top:16px}
.err code{font-weight:700}
.party{font-size:.8rem;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:1px 8px;margin-left:6px;white-space:nowrap}
nav.links{display:flex;flex-wrap:wrap;gap:10px 18px;margin:20px 0}
footer{margin-top:40px;padding-top:16px;border-top:1px solid var(--line);font-size:.9rem;color:var(--muted)}
footer a{color:var(--muted)}