:root{--bg:#fff;--fg:#16181d;--title:#000;--muted:#6b7280;--line:#e5e7eb;--card:#fafafa;--accent:#b7791f}
@media(prefers-color-scheme:dark){:root{--bg:#0f1115;--fg:#e8eaed;--title:#fff;
  --muted:#9aa2ad;--line:#272b33;--card:#161920;--accent:#e0a94a}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);line-height:1.75;
     font-family:system-ui,-apple-system,"PingFang SC","Noto Sans CJK SC",Roboto,sans-serif;
     font-variant-numeric:tabular-nums lining-nums;-webkit-text-size-adjust:100%}
a{color:inherit}
h1{font-size:25px;margin:22px 0 10px;color:var(--title)}
h2{font-size:17px;margin:26px 0 8px;color:var(--title)}
p,li{font-size:15px;margin:0 0 10px}
ul{padding-left:20px}
/* 桌面档跟 SITE_CSS 同一个断点，理由见那边那段注释 */
@media(min-width:900px){
  h1{font-size:32px;margin:30px 0 12px}
  h2{font-size:20px;margin:34px 0 10px}
  p,li{font-size:16.5px}
}