:root{--bg:#ffffff;--fg:#1f2328;--muted:#5b6470;--line:rgba(127,127,127,.22);--card:rgba(127,127,127,.06);--accent:#2563eb;--soft:rgba(37,99,235,.10);--code-bg:#f6f8fa;--warn:#b45309;--warn-soft:rgba(245,158,11,.12);--ok:#15803d;--ok-soft:rgba(34,197,94,.12)}
@media (prefers-color-scheme:dark){:root{--bg:#1c1c1e;--fg:#e6e8eb;--muted:#9aa3ad;--line:rgba(160,160,160,.2);--card:rgba(255,255,255,.04);--accent:#60a5fa;--soft:rgba(96,165,250,.14);--code-bg:#141416;--warn:#fbbf24;--warn-soft:rgba(251,191,36,.12);--ok:#4ade80;--ok-soft:rgba(74,222,128,.12)}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.8 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.top{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 24px;background:var(--bg);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--fg)}
.brand:hover{text-decoration:none}
.brand img{border-radius:7px}
.brand span{color:var(--muted);font-weight:500;margin-left:6px}
.top nav a{margin-left:18px;font-size:14px;color:var(--muted)}
.layout{display:grid;grid-template-columns:240px minmax(0,1fr);max-width:1180px;margin:0 auto}
.side{position:sticky;top:57px;align-self:start;height:calc(100vh - 57px);overflow:auto;padding:24px 12px 24px 24px;border-right:1px solid var(--line)}
.side h4{margin:18px 0 6px;font-size:12px;letter-spacing:1px;color:var(--muted);font-weight:700}
.side h4:first-child{margin-top:0}
.side a{display:block;padding:5px 10px;border-radius:8px;color:var(--fg);font-size:14px}
.side a:hover{background:var(--card);text-decoration:none}
main{padding:32px 40px 80px;min-width:0}
h1{font-size:32px;line-height:1.3;margin:0 0 8px}
h2{font-size:23px;margin:56px 0 12px;padding-top:8px;border-top:1px solid var(--line)}
h2:first-of-type{border-top:0}
h3{font-size:17px;margin:28px 0 8px}
.lead{color:var(--muted);font-size:16px;margin:0 0 24px}
.card{border:1px solid var(--line);background:var(--card);border-radius:12px;padding:16px 20px;margin:12px 0}
.note{border-left:3px solid var(--accent);background:var(--soft);border-radius:8px;padding:12px 16px;margin:14px 0}
.warn{border-left:3px solid var(--warn);background:var(--warn-soft);border-radius:8px;padding:12px 16px;margin:14px 0}
table{width:100%;border-collapse:collapse;margin:12px 0;font-size:14px}
th,td{border-bottom:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top}
th{color:var(--muted);font-weight:600}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;background:var(--card);border:1px solid var(--line);border-radius:5px;padding:1px 6px;white-space:nowrap}
pre{position:relative;background:var(--code-bg);border:1px solid var(--line);border-radius:10px;padding:14px 16px;overflow:auto;margin:10px 0 16px}
pre code{background:none;border:0;padding:0;white-space:pre;font-size:13px;line-height:1.65}
.copy{position:absolute;top:8px;right:8px;font-size:12px;padding:3px 10px;border-radius:6px;border:1px solid var(--line);background:var(--bg);color:var(--muted);cursor:pointer}
.copy:hover{color:var(--fg)}
.badge{display:inline-block;font-size:12px;font-weight:600;border-radius:999px;padding:1px 10px;margin-left:8px;vertical-align:middle}
.badge.test{color:var(--warn);background:var(--warn-soft)}
.badge.ok{color:var(--ok);background:var(--ok-soft)}
.tools{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px;margin:12px 0}
.tools a{border:1px solid var(--line);background:var(--card);border-radius:10px;padding:10px 14px;color:var(--fg);font-weight:600}
.tools a small{display:block;color:var(--muted);font-weight:400;font-size:12px}
ol,ul{padding-left:22px}
li{margin:4px 0}
.foot{margin-top:64px;color:var(--muted);font-size:13px;border-top:1px solid var(--line);padding-top:16px}
@media (max-width:860px){.layout{grid-template-columns:1fr}.side{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line);padding:16px 20px}.side h4{display:none}.side a{display:inline-block}main{padding:24px 18px 64px}.top nav a{margin-left:12px}}