:root{--bg:#fdfcf9;--fg:#24292f;--muted:#6a737d;--accent:#b5482a;--side:#f4f1ea;--border:#e3ddd0;--code:#f2efe8;--w:270px}
@media (prefers-color-scheme:dark){:root{--bg:#1b1c1f;--fg:#dcdcdc;--muted:#9aa0a6;--accent:#f08a5d;--side:#232428;--border:#3a3b40;--code:#2a2b30}}
*{box-sizing:border-box}
html{scroll-padding-top:64px}
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","Noto Sans CJK SC",sans-serif}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--w);overflow-y:auto;background:var(--side);border-right:1px solid var(--border);padding:16px 12px 40px;font-size:14px;line-height:1.5;z-index:20}
.brand{font-weight:700;color:var(--fg)}
.side-brand{display:block;font-size:16px;margin:0 4px 10px}
.filter{width:100%;padding:6px 8px;margin-bottom:10px;border:1px solid var(--border);border-radius:6px;background:var(--bg);color:var(--fg)}
.navgroup>summary{cursor:pointer;font-weight:600;padding:6px 4px;color:var(--muted)}
.sidebar ul{list-style:none;margin:0 0 6px;padding:0}
.sidebar li a{display:block;padding:3px 8px 3px 14px;border-radius:5px;color:var(--fg)}
.sidebar li a:hover{background:var(--border);text-decoration:none}
.sidebar li a.current{background:var(--accent);color:#fff}
.content{margin-left:var(--w);padding:28px 40px 60px;max-width:calc(var(--w) + 1000px)}
.markdown-body{max-width:960px}
.markdown-body h1,.markdown-body h2,.markdown-body h3,.markdown-body h4{line-height:1.35;margin:1.6em 0 .6em}
.markdown-body h1{font-size:1.9em;margin-top:.2em;padding-bottom:.3em;border-bottom:2px solid var(--border)}
.markdown-body h2{font-size:1.45em;padding-bottom:.25em;border-bottom:1px solid var(--border)}
.markdown-body h3{font-size:1.2em}
.header-anchor{opacity:0;margin-left:.3em;font-weight:400;color:var(--muted)}
h1:hover .header-anchor,h2:hover .header-anchor,h3:hover .header-anchor,h4:hover .header-anchor,h5:hover .header-anchor,h6:hover .header-anchor{opacity:1}
img{max-width:100%;height:auto;border-radius:6px;border:1px solid var(--border)}
code{background:var(--code);padding:.1em .35em;border-radius:4px;font-size:.9em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
pre{background:var(--code);padding:12px 14px;border-radius:6px;overflow-x:auto}pre code{padding:0;background:none}
blockquote{margin:1em 0;padding:.4em 1em;border-left:4px solid var(--accent);background:var(--code);color:var(--muted)}
blockquote p{margin:.3em 0}
hr{border:0;border-top:1px solid var(--border);margin:2em 0}
.table-wrap{overflow-x:auto;margin:1em 0}
table{border-collapse:collapse;font-size:.94em;min-width:50%}
th,td{border:1px solid var(--border);padding:6px 10px;vertical-align:top}
th{background:var(--side);text-align:left}
tr:nth-child(even) td{background:rgba(127,127,127,.05)}
.markdown-body details{border:1px solid var(--border);border-radius:6px;padding:.4em 1em;margin:1em 0;background:rgba(181,72,42,.04)}
.markdown-body details>summary{cursor:pointer;font-weight:600;color:var(--accent)}
.markdown-body details[open]>summary{margin-bottom:.5em}
footer{margin-top:4em;color:var(--muted);font-size:13px}
.topbar{display:none}
.scrim{display:none}
@media (max-width:860px){
 .topbar{display:flex;align-items:center;gap:12px;position:sticky;top:0;z-index:15;background:var(--side);border-bottom:1px solid var(--border);padding:10px 14px}
 .burger{font-size:22px;cursor:pointer;line-height:1}
 .sidebar{transform:translateX(-100%);transition:transform .2s;width:82vw;max-width:320px}
 #navtoggle:checked~.sidebar{transform:none}
 #navtoggle:checked~.scrim{display:block;position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:19}
 .content{margin-left:0;padding:16px 16px 50px}
 body{font-size:15.5px}
 th,td{padding:5px 7px;min-width:4.5em}
}