:root{
  --bg:#0A1412; --bg2:#0E1B17; --panel:#12231D; --panel2:#162B23;
  --line:rgba(143,227,192,.16); --line2:rgba(200,245,96,.22);
  --mint:#8FE3C0; --lime:#C8F560; --teal:#1F8A70; --amber:#F2B880;
  --txt:#EAF6F0; --txt2:#9DC0B2; --txt3:#5F8A7A;
  --mono:ui-monospace,'Cascadia Mono','JetBrains Mono',Consolas,monospace;
  --sans:-apple-system,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:var(--sans);background:var(--bg);color:var(--txt);line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:var(--mint);text-decoration:none}
a:hover{color:var(--lime)}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}
.dn{position:sticky;top:0;z-index:20;background:rgba(10,20,18,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.dn-in{max-width:1160px;margin:0 auto;padding:0 24px;height:58px;display:flex;align-items:center;gap:12px;font-size:14px;color:var(--txt2);min-width:0}
.dn-logo{display:flex;align-items:center;gap:8px;font-weight:900;font-size:16px;color:var(--txt);flex:none}
.dn-logo svg{width:22px;height:22px}
.dn-sep{color:var(--txt3)}
.dn-crumb{color:var(--txt2);white-space:nowrap}
.dn-cur{color:var(--txt);white-space:nowrap}
.dn-links{margin-left:auto;display:flex;gap:18px;font-size:13.5px;overflow-x:auto;white-space:nowrap;scrollbar-width:none}
.dn-links a{color:var(--txt2)}
.dn-links a.on{color:var(--lime)}
.dn-links a:hover{color:var(--lime)}
.doc{max-width:900px;margin:0 auto;padding:40px 24px 80px}
.dh{padding:8px 0 26px;margin-bottom:8px;border-bottom:1px solid var(--line2)}
.dh-k{font-family:var(--mono);font-size:12px;letter-spacing:3px;color:var(--mint);text-transform:uppercase;display:block;margin-bottom:12px}
.dh h1{font-size:clamp(26px,4vw,38px);font-weight:900;line-height:1.25}
.dh p{margin-top:12px;color:var(--txt2);font-size:14.5px}
article{font-size:15px}
article h1{font-size:clamp(24px,3.4vw,32px);font-weight:900;line-height:1.3;margin:0 0 18px}
article h2{font-size:22px;font-weight:800;margin:44px 0 14px;padding-top:18px;border-top:1px solid var(--line);scroll-margin-top:76px}
article h3{font-size:17px;font-weight:700;margin:28px 0 10px;color:var(--mint);scroll-margin-top:76px}
article h4{font-size:15px;font-weight:700;margin:20px 0 8px}
article p{margin:12px 0;color:#D8EBE3}
article strong{color:var(--txt)}
article ul,article ol{margin:12px 0 12px 22px}
article li{margin:6px 0;color:#D8EBE3}
article li>ul,article li>ol{margin:4px 0 4px 18px}
article blockquote{margin:16px 0;padding:12px 16px;border-left:3px solid var(--teal);background:var(--bg2);border-radius:0 8px 8px 0;color:var(--txt2)}
article blockquote p{margin:4px 0;color:var(--txt2)}
article code{font-family:var(--mono);font-size:.9em;background:rgba(143,227,192,.09);border:1px solid var(--line);border-radius:5px;padding:1px 5px;color:var(--mint-soft,#BDEAD6);word-break:break-word}
article pre{background:#0B1A15;border:1px solid var(--line);border-radius:10px;padding:14px 16px;overflow-x:auto;margin:14px 0}
article pre code{background:none;border:0;padding:0;font-size:13px;line-height:1.65;color:#CFE9DE;white-space:pre}
.tw{overflow-x:auto;margin:16px 0;border:1px solid var(--line);border-radius:10px;background:var(--bg2)}
table{border-collapse:collapse;width:100%;font-size:13.5px;min-width:560px}
th,td{text-align:left;vertical-align:top;padding:9px 12px;border-bottom:1px solid var(--line)}
th{background:rgba(31,138,112,.14);color:var(--mint);font-weight:700;white-space:nowrap}
tbody tr:last-child td{border-bottom:0}
tbody tr:nth-child(even){background:rgba(143,227,192,.03)}
td code{white-space:nowrap}
.toc{margin:24px 0 8px;border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:16px 20px}
.toc b{display:block;font-size:12px;letter-spacing:2px;color:var(--mint);text-transform:uppercase;margin-bottom:8px}
.toc ol{list-style:none;margin:0;columns:2;column-gap:28px}
.toc li{font-size:13.5px;margin:4px 0;break-inside:avoid}
.toc li.lv3{margin-left:14px;font-size:13px;opacity:.9}
.toc a{color:var(--txt2)}
.toc a:hover{color:var(--lime)}
.df{border-top:1px solid var(--line);background:var(--bg2)}
.df .wrap{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;padding-top:22px;padding-bottom:22px;font-size:13px;color:var(--txt3)}
@media (max-width:820px){
  .dn-in{height:auto;padding:10px 16px;flex-wrap:wrap}
  .dn-links{margin-left:0;width:100%;padding-bottom:2px}
  .doc{padding:28px 18px 60px}
  .toc ol{columns:1}
  .doc table{min-width:520px}
}
@media print{
  .dn,.toc,.df{display:none}
  body{background:#fff;color:#111}
  article pre,.tw{border-color:#ccc;background:#f7f7f7}
  article code{color:#0a5}
}