:root{
  --bg:#0b1020; --panel:#131a2e; --panel2:#1a2238; --line:#263150;
  --text:#e8edf7; --muted:#93a0bd; --brand:#5b8cff; --brand2:#38d39f;
  --danger:#ff6b6b; --warn:#ffb454; --radius:14px;
  --auth-glow:#1b2748;
  --notice-bg:rgba(255,180,84,.08); --notice-line:#5b471f; --notice-text:#ffd9a6;
  --noticeErr-bg:rgba(255,84,104,.08); --noticeErr-line:#5b2330; --noticeErr-text:#ffc0c8;
}
html[data-theme="light"]{
  --bg:#f4f6fb; --panel:#ffffff; --panel2:#eef2f9; --line:#dbe2ee;
  --text:#1b2440; --muted:#5d6b88; --brand:#3a6ae0; --brand2:#11a578;
  --danger:#d83a3a; --warn:#b9760f;
  --auth-glow:#d7e2ff;
  --notice-bg:rgba(185,118,15,.08); --notice-line:#e4d4ad; --notice-text:#8a5a06;
  --noticeErr-bg:rgba(216,58,58,.07); --noticeErr-line:#f0c8c8; --noticeErr-text:#b32525;
}
html,body{height:100%;}
*{box-sizing:border-box;}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--text);}
a{color:var(--brand);}
.muted{color:var(--muted);}
.sm{font-size:12.5px;}
.hidden{display:none!important;}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;}
.btn{background:var(--brand);color:#fff;border:0;border-radius:10px;padding:10px 16px;font-weight:600;cursor:pointer;font-size:14px;}
.btn:hover{filter:brightness(1.08);}
.btn.green{background:var(--brand2);color:#05281d;}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--text);}
.btn.danger{background:var(--danger);color:#fff;}
.btn.warn{background:var(--warn);color:#3a2400;}
.btn.sm{padding:6px 11px;font-size:13px;}
.btn.block{width:100%;display:block;margin-top:14px;}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:18px;}
input,select{width:100%;padding:11px 12px;border-radius:10px;border:1px solid var(--line);background:var(--panel2);color:var(--text);font-size:14px;}
label{display:block;font-size:13px;color:var(--muted);margin:12px 0 6px;}
h1{font-size:24px;margin:0 0 6px;}
h2{font-size:18px;margin:0 0 14px;}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--panel2);padding:8px 10px;border-radius:8px;font-size:13px;word-break:break-all;border:1px solid var(--line);}
.grid{display:grid;gap:16px;}
.cols2{grid-template-columns:1fr 1fr;}
.cols3{grid-template-columns:repeat(3,1fr);}
.cols4{grid-template-columns:repeat(4,1fr);}
@media(max-width:900px){.cols2,.cols3,.cols4{grid-template-columns:1fr;}}
.stat{text-align:center;padding:20px;}
.stat .num{font-size:28px;font-weight:800;}
.stat .num.green{color:var(--brand2);} .stat .num.blue{color:var(--brand);} .stat .num.warn{color:var(--warn);}
.stat .lbl{color:var(--muted);font-size:13px;margin-top:6px;}
.kv{display:flex;justify-content:space-between;gap:10px;padding:10px 0;border-bottom:1px dashed var(--line);}
.kv:last-child{border-bottom:0;}
table{width:100%;border-collapse:collapse;font-size:13.5px;}
th,td{text-align:left;padding:9px 8px;border-bottom:1px solid var(--line);white-space:nowrap;}
th{color:var(--muted);font-weight:600;}
.tag{display:inline-block;background:var(--panel2);border:1px solid var(--line);border-radius:999px;padding:3px 10px;font-size:12px;}
.tag.on{color:var(--brand2);border-color:#1f5b46;} .tag.off{color:var(--danger);border-color:#5b2330;}
.notice{background:var(--notice-bg);border:1px solid var(--notice-line);border-radius:10px;padding:12px 14px;color:var(--notice-text);font-size:13px;line-height:1.6;}
.notice.err{background:var(--noticeErr-bg);border-color:var(--noticeErr-line);color:var(--noticeErr-text);}
.codeblock{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:12px 14px;white-space:pre-wrap;word-break:break-all;font-size:12.5px;line-height:1.6;cursor:pointer;margin:4px 0 12px;}
.codeblock:hover{border-color:var(--brand);}
.plan{text-align:center;} .plan .gb{font-size:26px;font-weight:800;color:var(--brand2);} .plan .price{font-size:18px;font-weight:700;margin:6px 0;}

/* layout */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;
  background:radial-gradient(1000px 600px at 80% -10%,var(--auth-glow) 0,transparent 60%),var(--bg);}
.auth-card{width:380px;max-width:100%;}
.tabs{display:flex;gap:8px;margin:16px 0 4px;}
.tab{flex:1;background:var(--panel2);border:1px solid var(--line);color:var(--muted);padding:9px;border-radius:9px;cursor:pointer;}
.tab.active{color:var(--text);border-color:var(--brand);}
.logo{font-weight:800;font-size:20px;} .logo span{color:var(--brand2);}
#appView{display:flex;min-height:100vh;}
.sidebar{width:230px;background:var(--panel);border-right:1px solid var(--line);padding:18px 14px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow:hidden;transition:width .22s ease,padding .22s ease;}
.side-head{display:flex;align-items:center;justify-content:space-between;gap:8px;}
.logo.side{margin:4px 8px 18px;}
.side-head .logo.side{margin:4px 0 18px 8px;}
.side-toggle{flex:0 0 auto;width:30px;height:30px;margin-bottom:14px;background:var(--panel2);border:1px solid var(--line);color:var(--muted);border-radius:8px;cursor:pointer;font-size:18px;line-height:1;display:flex;align-items:center;justify-content:center;}
.side-toggle:hover{color:var(--text);border-color:var(--brand);}
.sidebar-open{position:fixed;top:14px;left:14px;z-index:35;width:38px;height:38px;display:flex;align-items:center;justify-content:center;background:var(--panel);border:1px solid var(--line);color:var(--text);border-radius:10px;cursor:pointer;font-size:18px;box-shadow:0 4px 14px rgba(0,0,0,.18);}
.sidebar-open:hover{border-color:var(--brand);}
body.nav-collapsed .sidebar{width:0;padding-left:0;padding-right:0;border-right-color:transparent;}
body.nav-collapsed .content{padding-left:64px;}
#nav{flex:1;overflow:auto;}
.nav-group{margin-bottom:14px;}
.nav-group .gtitle{color:var(--muted);font-size:12px;padding:6px 10px;letter-spacing:.5px;}
.nav-item{display:block;padding:9px 12px;border-radius:9px;color:var(--text);cursor:pointer;font-size:14px;margin:2px 0;text-decoration:none;}
.nav-item:hover{background:var(--panel2);}
.nav-item.active{background:var(--brand);color:#fff;}
.side-foot{border-top:1px solid var(--line);padding-top:12px;}
.content{flex:1;padding:26px 30px;overflow:auto;}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--panel2);border:1px solid var(--line);padding:12px 18px;border-radius:10px;opacity:0;transition:.25s;pointer-events:none;z-index:50;}
.toast.show{opacity:1;}
.modal-bg{position:fixed;inset:0;background:rgba(0,0,0,.55);display:flex;align-items:center;justify-content:center;z-index:40;}
.modal{width:420px;max-width:92vw;}

/* spinner / loading */
.spinner{display:inline-block;width:14px;height:14px;border:2px solid var(--line);border-top-color:var(--brand);border-radius:50%;animation:spin .7s linear infinite;vertical-align:-2px;}
.spinner.big{width:22px;height:22px;border-width:3px;vertical-align:-4px;}
.loading{color:var(--muted);padding:40px 0;text-align:center;font-size:15px;}
@keyframes spin{to{transform:rotate(360deg);}}
.mono{cursor:pointer;}
.mono:hover{border-color:var(--brand);}

/* ---------- language / theme switch ---------- */
.switcher{display:flex;gap:8px;align-items:center;}
.seg{display:inline-flex;background:var(--panel2);border:1px solid var(--line);border-radius:999px;padding:2px;}
.seg button{border:0;background:transparent;color:var(--muted);cursor:pointer;font-size:12.5px;font-weight:600;padding:4px 10px;border-radius:999px;line-height:1.4;}
.seg button.active{background:var(--brand);color:#fff;}
.seg.icononly button{padding:4px 9px;font-size:14px;}
.auth-switch{position:fixed;top:16px;right:18px;z-index:30;}
.side-switch{margin:10px 0;}

/* ---------- API docs ---------- */
.doc-card{max-width:920px;padding:0;overflow:hidden;}
.doc{padding:34px 40px 40px;line-height:1.7;font-size:14.5px;color:var(--text);}
@media(max-width:760px){.doc{padding:24px 18px 30px;}}
.doc-h1{font-size:27px;font-weight:800;margin:0 0 6px;letter-spacing:.2px;}
.doc-h2{font-size:20px;font-weight:700;margin:38px 0 14px;padding-bottom:9px;border-bottom:1px solid var(--line);scroll-margin-top:20px;}
.doc-h3{font-size:16px;font-weight:700;margin:26px 0 10px;color:var(--text);}
.doc-h4{font-size:14px;font-weight:700;margin:18px 0 8px;color:var(--muted);text-transform:uppercase;letter-spacing:.6px;}
.doc-p{margin:10px 0;}
.doc .doc-p+.doc-p{margin-top:6px;}
.doc-quote{margin:14px 0;padding:10px 16px;border-left:3px solid var(--brand);background:var(--panel2);border-radius:0 8px 8px 0;color:var(--muted);font-size:13.5px;}
.doc-hr{border:0;border-top:1px solid var(--line);margin:30px 0;}
.doc-ul,.doc-ol{margin:10px 0;padding-left:22px;}
.doc-ul li,.doc-ol li{margin:5px 0;}
.doc-ul{list-style:none;padding-left:4px;}
.doc-ul li{position:relative;padding-left:18px;}
.doc-ul li::before{content:"";position:absolute;left:2px;top:10px;width:6px;height:6px;border-radius:50%;background:var(--brand);}
.doc code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--panel2);border:1px solid var(--line);border-radius:6px;padding:1.5px 6px;font-size:12.5px;color:var(--brand);white-space:nowrap;}
.doc a{color:var(--brand);text-decoration:none;border-bottom:1px solid transparent;}
.doc a:hover{border-bottom-color:var(--brand);}
.doc strong{color:var(--text);font-weight:700;}
.doc-pre{background:#0c1326;border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin:14px 0;overflow:auto;}
.doc-pre code{background:none;border:0;padding:0;white-space:pre;color:#d6e2ff;font-size:12.8px;line-height:1.65;}
.doc-table{width:100%;border-collapse:collapse;margin:14px 0;font-size:13.5px;border:1px solid var(--line);border-radius:10px;overflow:hidden;}
.doc-table th{background:var(--panel2);color:var(--muted);font-weight:600;text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);white-space:nowrap;}
.doc-table td{padding:10px 12px;border-bottom:1px solid var(--line);white-space:normal;vertical-align:top;}
.doc-table tr:last-child td{border-bottom:0;}
.doc-table code{white-space:nowrap;}
/* method badges + endpoint pill */
.doc-ep{display:inline-flex;align-items:center;gap:8px;background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:4px 10px 4px 4px;font-size:13px;color:var(--text);white-space:nowrap;}
.doc-ep .m{display:inline-block;font-weight:800;font-size:11px;letter-spacing:.5px;padding:3px 8px;border-radius:5px;color:#fff;}
.m-get{background:#2f7d62;} .m-post{background:#3a6abf;} .m-put{background:#9a6a1e;} .m-delete{background:#a23a45;} .m-patch{background:#7a4fb0;}
/* table of contents */
.doc-toc{background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin:18px 0 8px;}
.doc-toc-t{font-size:12px;color:var(--muted);letter-spacing:.6px;text-transform:uppercase;margin-bottom:10px;}
.doc-toc a{display:inline-block;color:var(--text);font-size:13.5px;text-decoration:none;cursor:pointer;padding:5px 12px;margin:3px 6px 3px 0;background:var(--panel);border:1px solid var(--line);border-radius:999px;}
.doc-toc a:hover{border-color:var(--brand);color:var(--brand);}

/* bar chart */
.barchart{display:flex;align-items:flex-end;gap:8px;height:210px;padding-top:8px;}
.barchart .bar{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%;min-width:0;}
.barchart .bval{font-size:9.5px;color:var(--muted);margin-bottom:4px;white-space:nowrap;line-height:1;}
.barchart .bwrap{width:100%;flex:1;display:flex;align-items:flex-end;justify-content:center;}
.barchart .bfill{width:62%;max-width:30px;min-height:0;background:linear-gradient(180deg,var(--brand),var(--brand2));border-radius:5px 5px 0 0;transition:height .3s;}
.barchart .bar:hover .bfill{filter:brightness(1.15);}
.barchart .blbl{font-size:10px;color:var(--muted);margin-top:8px;white-space:nowrap;}