:root{--fg:#1a1a1a;--muted:#666;--line:#e5e5e5;--bg:#fff;--accent:#0b5fff;--code:#f6f6f6}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);
 font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}
.wrap{max-width:760px;margin:0 auto;padding:0 20px}
header.site{padding:28px 0 18px;border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap}
header.site a.brand{font-weight:600;color:var(--fg);text-decoration:none;font-size:17px;letter-spacing:.2px}
nav a{color:var(--muted);text-decoration:none;margin-left:18px;font-size:14px}
nav a:hover{color:var(--fg)}
main{padding:38px 0 60px}
h1{font-size:28px;line-height:1.35;margin:0 0 10px;letter-spacing:-.2px}
h2{font-size:20px;margin:36px 0 10px}
h3{font-size:17px;margin:26px 0 8px}
p{margin:12px 0}
.lead{color:var(--muted);font-size:15px;margin-bottom:28px}
ul,ol{padding-left:22px}
li{margin:6px 0}
a{color:var(--accent)}
code{background:var(--code);padding:1px 5px;border-radius:3px;font-size:14px;
 font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
pre{background:var(--code);padding:14px 16px;border-radius:6px;overflow:auto;font-size:13.5px;line-height:1.6}
pre code{background:none;padding:0}
table{border-collapse:collapse;width:100%;margin:16px 0;font-size:14.5px}
th,td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left}
th{font-weight:600;background:#fafafa}
.meta{color:var(--muted);font-size:13.5px;margin-bottom:26px}
.list{list-style:none;padding:0;margin:0}
.list li{padding:18px 0;border-bottom:1px solid var(--line)}
.list a{text-decoration:none;font-weight:600;font-size:17px;color:var(--fg)}
.list a:hover{color:var(--accent)}
.list .desc{color:var(--muted);font-size:14.5px;margin-top:4px}
.list .date{color:var(--muted);font-size:13px;margin-top:6px}
footer.site{border-top:1px solid var(--line);padding:22px 0;color:var(--muted);font-size:13px}
blockquote{margin:18px 0;padding:2px 16px;border-left:3px solid var(--line);color:var(--muted)}