:root{
  --bg:#f0f4f8;
  --paper:#ffffff;
  --panel:#ffffff;
  --ink:#0f172a;
  --ink-soft:#475569;
  --ink-faint:#94a3b8;
  --line:#e2e8f0;
  --line-strong:#cbd5e1;
  --radar:#2563eb;
  --radar-deep:#1d4ed8;
  --radar-wash:#dbeafe;
  --amber:#f59e0b;
  --amber-wash:#fef3c7;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
  --sans:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}

:root[data-theme="warm"]{
  --bg:#f3efe6;
  --paper:#fbf9f3;
  --panel:#ffffff;
  --ink:#1b2230;
  --ink-soft:#4a5365;
  --ink-faint:#8b93a3;
  --line:#ddd6c7;
  --line-strong:#c4bba8;
  --radar:#0d7c74;
  --radar-deep:#0a5f59;
  --radar-wash:#e3f0ee;
  --amber:#bd6a0c;
  --amber-wash:#f8ecd9;
}