@font-face{font-family:LatoB;src:url(Lato-Black.woff2) format('woff2');font-weight:900;font-display:swap}
:root{color-scheme:light;--bg:#ECEEF1;--top:#F2F3F6;--ink:#1C1F25;--sub:#5C626C;--faint:#8C929B;--rule:#CDD2D9;--panel:#F7F8FA;--accent:#D97757;--accent-tint:#F6E4DC;--cn:"PingFang SC","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;--num:LatoB,"PingFang SC",sans-serif;--gut:22px}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--cn);font-size:15.5px;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.wrap{width:min(100%,760px);margin:0 auto;padding:0 var(--gut)}
.top{position:sticky;top:0;z-index:5;background:rgba(242,243,246,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--rule)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:56px}
.brand{font-family:var(--num);font-weight:900;font-size:19px;text-decoration:none}
.brand i{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--accent);margin-left:2px;vertical-align:1px}
.home{font-size:14px;color:var(--sub);text-decoration:none}
.tabs{background:var(--top);border-bottom:1px solid var(--rule)}
.tabs .wrap{display:flex;gap:24px}
.tabs a{display:block;padding:12px 0 10px;font-size:14.5px;color:var(--sub);text-decoration:none;border-bottom:2px solid transparent}
.tabs a[aria-current]{color:var(--ink);font-weight:600;border-bottom-color:var(--ink)}
.doc{padding-top:36px;padding-bottom:64px}
.doc h1{font-size:30px;line-height:1.3;font-weight:600;letter-spacing:-.01em;margin:0}
.doc .meta{color:var(--faint);font-size:13px;margin:8px 0 0}
.doc h2{display:flex;align-items:center;gap:10px;font-size:20px;line-height:1.4;font-weight:600;margin:44px 0 12px}
.doc h2::before{content:"";width:7px;height:18px;background:var(--accent);border-radius:1px;flex:none}
.doc h3{font-size:16.5px;font-weight:600;margin:28px 0 8px}
.doc p{margin:10px 0}
.doc ul,.doc ol{padding-left:1.4em;margin:10px 0}
.doc li{margin:6px 0}
.doc li::marker{color:var(--faint)}
.doc strong{font-weight:600}
.doc hr{display:none}
.doc blockquote{margin:16px 0;padding:12px 16px;border-radius:12px;background:var(--accent-tint);color:#7A3E27}
.doc blockquote p{margin:0}
.tbl{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:14px 0}
.doc table{width:100%;border-collapse:collapse;font-size:14px;line-height:1.6;background:var(--panel);border-radius:12px;overflow:hidden}
.doc th{text-align:left;font-weight:600;background:#E4E7EB;padding:10px 12px;white-space:nowrap}
.doc td{padding:10px 12px;border-top:1px solid #E1E4E8;vertical-align:top}
.foot{border-top:1px solid var(--rule);padding:28px 0 40px;background:var(--top)}
.foot .contact{margin:0;font-size:14px}
.foot .legal{margin:10px 0 0;font-size:11.5px;line-height:1.7;color:var(--faint)}
@media (min-width:900px){
  .doc{padding-top:56px}
  .doc h1{font-size:38px}
}