:root{
  --bg:#0b0d12; --panel:#12151d; --panel2:#161a24; --line:#262c3a;
  --fg:#e6e9f0; --mut:#98a1b5; --acc:#6ea8ff; --ok:#7ee0b8; --warn:#ffb861; --bad:#ff7a7a;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);
  font:15px/1.55 -apple-system,"Segoe UI","Microsoft YaHei",Roboto,sans-serif}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
header{border-bottom:1px solid var(--line);background:linear-gradient(180deg,#141926,#0b0d12);
  padding:22px 0 20px;margin-bottom:22px}
h1{margin:0 0 6px;font-size:22px;letter-spacing:.2px}
h2{font-size:16px;margin:0 0 12px;color:#cfd6e6}
h3{margin:0 0 14px;font-size:17px}
.sub{margin:0;color:var(--mut);font-size:13px}
.muted,.hint{color:var(--mut);font-size:12px}
.hint{display:block;margin-top:4px;line-height:1.5}
a{color:var(--acc);text-decoration:none}
a:hover{text-decoration:underline}
.back{font-size:13px;color:var(--mut);display:inline-block;margin-bottom:10px}
.row{display:flex;gap:10px;align-items:center}
.between{justify-content:space-between}
.end{justify-content:flex-end;margin-top:16px}
.wrapline{flex-wrap:wrap}
button{background:var(--panel2);color:var(--fg);border:1px solid var(--line);
  border-radius:8px;padding:8px 14px;font-size:14px;cursor:pointer}
button:hover{border-color:#3d465c}
button.primary{background:#1d4ed8;border-color:#2b5bea}
button.primary:hover{background:#2559e6}
button.ghost{background:transparent}
button.danger{color:var(--bad)}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:18px;margin-bottom:20px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden;
  display:flex;flex-direction:column}
.card .thumb{height:150px;background:#0f1116;display:flex;align-items:center;justify-content:center}
.card .thumb img{max-height:100%;max-width:100%;object-fit:contain}
.card .body{padding:12px 14px;flex:1}
.card .title{font-weight:600;margin-bottom:4px}
.badge{display:inline-block;font-size:11px;padding:2px 8px;border-radius:20px;
  border:1px solid var(--line);color:var(--mut);margin-right:6px}
.badge.ok{color:var(--ok);border-color:#2b5c47}
.badge.warn{color:var(--warn);border-color:#5c4a2b}
.badge.bad{color:var(--bad);border-color:#5c2b2b}
.badge.demo{color:#c792ea;border-color:#4a2b5c}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--mut);font-weight:600;font-size:12px;white-space:nowrap}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
img.chart{width:100%;border-radius:10px;border:1px solid var(--line);margin-bottom:12px;
  background:#0f1116}
img.mini{height:110px;border-radius:6px;border:1px solid var(--line);background:#0f1116;
  cursor:zoom-in}
dialog{background:var(--panel);color:var(--fg);border:1px solid var(--line);border-radius:12px;
  padding:22px;width:min(520px,92vw)}
dialog::backdrop{background:#000a}
label{display:block;margin-bottom:14px;font-size:13px;color:#c6cde0}
input,select{width:100%;margin-top:5px;background:#0e1118;color:var(--fg);
  border:1px solid var(--line);border-radius:8px;padding:8px 10px;font-size:14px}
.kv{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:10px;
  margin-bottom:14px}
.kv div{background:var(--panel2);border:1px solid var(--line);border-radius:9px;padding:10px 12px}
.kv .k{font-size:11px;color:var(--mut);margin-bottom:3px}
.kv .v{font-size:17px;font-variant-numeric:tabular-nums}
.verdict{border-left:3px solid var(--acc);background:#111827;border-radius:0 9px 9px 0;
  padding:12px 16px;margin:14px 0;font-size:14px;line-height:1.65}
.verdict.warn{border-color:var(--warn)}
.verdict.ok{border-color:var(--ok)}
.verdict b{color:#fff}
code{background:#0e1118;border:1px solid var(--line);border-radius:5px;padding:1px 6px;
  font-size:12px}
.err{color:var(--bad)}
.hero{background:linear-gradient(180deg,#151a26,#12151d);border-color:#334059}
.hero h2{font-size:19px;color:#fff}
.dlrow{margin:6px 0 12px}
button.big{font-size:15px;padding:11px 20px}
.lead{font-size:14.5px;line-height:1.75;color:#d3dae8;margin:6px 0 10px;
  border-left:3px solid var(--acc);padding-left:14px}
.algolink{font-size:13px}
.gap{background:#241d12;border:1px solid #5c4a2b;border-radius:10px;padding:13px 16px;margin:6px 0 16px}
.gap .gaptitle{color:var(--warn);font-weight:600;margin-bottom:6px;font-size:14px}
.gap p{margin:6px 0;font-size:13.5px;line-height:1.75;color:#dbd2c2}
.opts{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:16px}
@media(max-width:820px){.opts{grid-template-columns:1fr}}
.opt{position:relative;background:var(--panel2);border:1px solid var(--line);border-radius:11px;
  padding:16px 18px 18px}
.opt.pick{border-color:#2b5bea;background:#141b2e}
.opt.view{box-shadow:0 0 0 1px var(--acc) inset}
.opt h3{font-size:16px;margin:0 0 8px}
.opt p{font-size:13.5px;line-height:1.75;margin:8px 0;color:#cbd3e2}
.opt .tag{position:absolute;top:-9px;right:14px;background:#2b5bea;color:#fff;font-size:11px;
  padding:2px 9px;border-radius:20px}
.opt .warnline{color:var(--warn)}
.opt .swap{display:inline-block;margin-left:12px;font-size:12.5px}
.doc h2{font-size:17px;margin-bottom:12px}
.doc h3.sub2{font-size:15px;margin:18px 0 6px;color:#dfe4ee}
.doc p,.doc li{font-size:14px;line-height:1.85;color:#c9d1e0}
.doc ul,.doc ol{padding-left:22px;margin:10px 0}
.doc li{margin:6px 0}
.doc b{color:#eef1f7}
.doc pre.eq{background:#0e1118;border:1px solid var(--line);border-radius:8px;padding:14px 16px;
  font-size:15px;color:#9fd0ff;overflow-x:auto;margin:12px 0}
.doc p.eq2{background:#0e1118;border-left:3px solid var(--acc);padding:11px 16px;font-size:15px;
  color:#fff;margin:12px 0}
.doc table{margin:12px 0}
details.details{padding:0}
details.details>summary{cursor:pointer;padding:16px 18px;font-size:15px;color:#cfd6e6;
  list-style:none;user-select:none}
details.details>summary::-webkit-details-marker{display:none}
details.details>summary::before{content:'▸ ';color:var(--mut)}
details.details[open]>summary::before{content:'▾ '}
details.details[open]>summary{border-bottom:1px solid var(--line)}
details.details>div{padding:16px 18px}
details.mini{margin:4px 0 10px;font-size:13.5px;color:#c3cbdb}
details.mini>summary{cursor:pointer;color:var(--acc);font-size:13px;margin-bottom:6px}
details.mini p{margin:8px 0;line-height:1.75}
.spin{display:inline-block;width:12px;height:12px;border:2px solid var(--line);
  border-top-color:var(--acc);border-radius:50%;animation:sp .8s linear infinite;
  vertical-align:-2px;margin-right:6px}
@keyframes sp{to{transform:rotate(360deg)}}