:root{
  --fg:#1f2328; --muted:#656d76; --bg:#fff; --line:#d8dee4; --link:#0969da;
}
@media (prefers-color-scheme:dark){
  :root{ --fg:#e6edf3; --muted:#8d96a0; --bg:#0d1117; --line:#30363d; --link:#4493f8; }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; padding:0 20px;
  background:var(--bg); color:var(--fg);
  font:16px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
header,main,footer{max-width:720px;margin:0 auto}
header{
  display:flex;align-items:baseline;justify-content:space-between;
  padding:28px 0 18px;border-bottom:1px solid var(--line);
}
.brand{font-weight:600;font-size:18px;color:var(--fg);text-decoration:none}
nav a{margin-left:18px;font-size:14px;color:var(--muted);text-decoration:none}
nav a:hover{color:var(--link)}
main{padding:34px 0 60px}
h1{font-size:26px;margin:0 0 10px;letter-spacing:-.01em}
h2{font-size:19px;margin:38px 0 12px}
h3{font-size:16px;margin:26px 0 8px}
.lead{color:var(--muted);margin:0 0 32px}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
code{
  font:.9em ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:rgba(127,127,127,.12);padding:.15em .35em;border-radius:4px;
}
pre{
  background:rgba(127,127,127,.1);padding:14px 16px;border-radius:6px;
  overflow:auto;font-size:13.5px;line-height:1.6;
}
pre code{background:none;padding:0}
ul.posts{list-style:none;padding:0;margin:0}
ul.posts li{padding:18px 0;border-bottom:1px solid var(--line)}
ul.posts li:last-child{border-bottom:none}
ul.posts time{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
ul.posts a{font-size:17px;font-weight:500}
ul.posts p{margin:6px 0 0;color:var(--muted);font-size:14.5px}
article p{margin:0 0 16px}
article ul,article ol{padding-left:22px}
article li{margin:6px 0}
blockquote{
  margin:20px 0;padding:2px 16px;border-left:3px solid var(--line);color:var(--muted);
}
footer{
  padding:22px 0 40px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
footer p{margin:0}
.nf{text-align:center;padding:60px 0}
.nf h1{font-size:64px;color:var(--muted);margin-bottom:8px}