:root{--fg:#24292f;--muted:#656d76;--accent:#0969da;--border:#d8dee4;--bg:#fff;--code:#f6f8fa}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;color:var(--fg);background:var(--bg);line-height:1.75;font-size:16px}
.wrap{max-width:744px;margin:0 auto;padding:0 20px}
.site-header{border-bottom:1px solid var(--border);background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(6px);position:sticky;top:0;z-index:10}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:58px}
.brand{font-weight:700;font-size:18px;color:var(--fg);text-decoration:none;letter-spacing:.2px}
nav a{color:var(--muted);text-decoration:none;margin-left:20px;font-size:15px}
nav a:hover,nav a.active{color:var(--accent)}
main.wrap{padding-top:34px;padding-bottom:40px;min-height:62vh}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1{font-size:29px;line-height:1.3;margin:.1em 0 .25em}
h2{font-size:21px;margin-top:1.7em;border-bottom:1px solid var(--border);padding-bottom:.25em}
h3{font-size:18px}
.lead{color:var(--muted);font-size:16px;margin:.2em 0 1.6em}
.post-list{list-style:none;padding:0;margin:0}
.post-list li{padding:20px 0;border-bottom:1px solid var(--border)}
.post-list li:first-child{padding-top:4px}
.post-list h3{margin:0 0 5px;font-size:20px}
.post-list h3 a{color:var(--fg)}
.post-list h3 a:hover{color:var(--accent);text-decoration:none}
.meta{color:var(--muted);font-size:13px}
.summary{color:#3d444d;margin:7px 0 0}
.tag{display:inline-block;background:var(--code);color:var(--muted);border-radius:5px;padding:1px 9px;font-size:12px;margin-left:6px;border:1px solid var(--border)}
.post-header{margin-bottom:18px}
.post-body p{margin:1.05em 0}
.post-body ul,.post-body ol{padding-left:1.4em}
.post-body li{margin:.35em 0}
pre{background:var(--code);border:1px solid var(--border);border-radius:8px;padding:14px 16px;overflow:auto;font-size:13.5px;line-height:1.55}
code{background:var(--code);border-radius:5px;padding:1px 6px;font-size:.9em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
pre code{background:none;padding:0;font-size:inherit}
blockquote{margin:1.2em 0;padding:.5em 1em;color:var(--muted);border-left:3px solid var(--accent);background:#f6f8fa55}
.site-footer{border-top:1px solid var(--border);color:var(--muted);font-size:13px;padding:26px 0 40px;margin-top:20px}
.back{display:inline-block;margin-top:30px;font-size:14px}
.archive-year{margin-top:1.4em;color:var(--muted);font-size:15px;font-weight:600}
.archive-list{list-style:none;padding:0;margin:.4em 0}
.archive-list li{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px dashed var(--border)}
.archive-list .d{color:var(--muted);font-size:13px;white-space:nowrap;margin-left:14px}
hr{border:none;border-top:1px solid var(--border);margin:2em 0}