:root{--paper:#f2eee3;--panel:#fbf9f3;--ink:#2b343b;--muted:#59666c;--accent:#216451;--bad:#a32f3e;--line:color-mix(in srgb,var(--ink) 22%,transparent);--tint:color-mix(in srgb,var(--accent) 8%,var(--panel));--grid:color-mix(in srgb,var(--ink) 4%,transparent);--sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;--display:"Avenir Next",var(--sans);--mono:"SF Mono",Menlo,Consolas,monospace;--radius:8px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:16px}body{margin:0;background-color:var(--paper);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:28px 28px;color:var(--ink);font:14px/1.6 var(--sans)}button,input,select{font:inherit}button,select{cursor:pointer}a{color:var(--accent);text-underline-offset:4px}button:focus-visible,select:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}h1,h2,h3,p{margin:0}h1{font:600 24px/1.3 var(--display);letter-spacing:-.04em}h2{font-size:16px;font-weight:600}h3{font-size:14px;font-weight:600}.mono,strong,dd,td:not(:first-child){font-family:var(--mono);font-variant-numeric:tabular-nums}.shell{max-width:1536px;margin:auto;padding:0 32px}.subtle,.note,.label,.table-note{color:var(--muted)}.subtle{font-size:12px}.eyebrow{font:10px var(--mono);letter-spacing:.12em;margin-bottom:4px}.masthead{display:flex;align-items:center;justify-content:space-between;padding:28px 0 20px;gap:16px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:16px}.brand-mark{font:600 32px var(--display);letter-spacing:-.16em;width:52px;height:52px;display:grid;place-items:center;border:1px solid var(--accent);border-radius:8px;color:var(--accent);padding-right:4px}.head-meta{display:flex;align-items:center;gap:24px;font-size:12px}.badge{border:1px solid var(--accent);padding:4px 12px;border-radius:4px;color:var(--accent);background:var(--tint)}.tag{display:inline-block;font:10px/1.6 var(--mono);letter-spacing:.02em;border:1px solid var(--line);padding:0 4px;border-radius:4px;color:var(--muted);white-space:nowrap}.statusbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;font-size:12px;color:var(--muted)}#connection::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:currentColor;margin-right:8px}#connection.online{color:var(--accent)}#connection.offline{color:var(--bad)}.account-strip{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:8px 0 24px;background:color-mix(in srgb,var(--panel) 75%,transparent)}.account-strip>div{display:flex;flex-direction:column;padding:20px 24px;border-left:1px solid var(--line);gap:4px}.account-strip>div:first-child{border-left:0;padding-left:16px}.label{font-size:12px}.account-strip strong{font-size:28px;line-height:1.5;font-weight:500;letter-spacing:-.04em}.primary-stat{border-top:3px solid var(--accent)}.primary-stat strong{color:var(--accent)}.positive{color:var(--accent)!important}.negative{color:var(--bad)!important}.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;border-bottom:1px solid var(--line)}.table-scroll{max-width:100%;overflow:auto}table{width:100%;border-collapse:collapse;white-space:nowrap;text-align:right}th{font-size:11px;font-weight:500;color:var(--muted);background:color-mix(in srgb,var(--paper) 65%,var(--panel))}td,th{padding:12px 20px;border-bottom:1px solid color-mix(in srgb,var(--line) 55%,transparent)}td{font-size:12px}th:first-child,td:first-child{text-align:left}tbody tr:last-child td{border-bottom:0}tbody tr.selected{background:var(--tint)}.market-link{color:var(--ink);font:600 14px var(--mono);background:none;border:0;padding:0}.market-link:hover{color:var(--accent)}.table-note{font-size:11px;padding:12px 20px;border-top:1px solid var(--line)}.workbench{display:grid;grid-template-columns:minmax(0,1fr) 328px;gap:20px;margin:20px 0}.main-column,.side-column{min-width:0;display:flex;flex-direction:column;gap:20px}.asset-switch{display:flex;gap:4px}.asset-switch button{font:500 14px var(--mono);padding:8px 16px;border:1px solid transparent;border-radius:4px;background:transparent;color:var(--muted)}.asset-switch button[aria-pressed=true]{color:var(--panel);background:var(--accent)}.range-label{font-size:12px;color:var(--muted)}select{border:1px solid var(--line);background:var(--panel);color:var(--ink);padding:4px 8px;border-radius:4px}.chart-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:20px 20px 0}.chart-heading h2{font-size:14px}.chart-wrap{position:relative;margin:8px 8px 0;min-height:216px}#spread-chart{display:block;width:100%;height:280px;overflow:visible}.series-buy,.series-sell{fill:none;stroke-width:2;stroke-linejoin:round;stroke:var(--accent)}.series-sell{stroke:var(--ink);stroke-dasharray:5 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var(--line)}.book-title{display:flex;align-items:center;justify-content:space-between;padding:16px}.depth td,.depth th{padding:8px 12px;font-family:var(--mono);font-size:11px}.depth th:first-child,.depth td:first-child{text-align:right}.depth td:nth-child(1){color:var(--accent)}.depth td:nth-child(3){color:var(--bad)}.book-footer{font-size:11px;color:var(--muted);padding:12px 16px;border-top:1px solid var(--line)}.metrics{padding:12px 20px;margin:0}.metrics>div{display:flex;align-items:baseline;justify-content:space-between;gap:8px;margin:8px 0}.metrics dt{font-size:12px;color:var(--muted)}.metrics dd{margin:0;font-size:12px;font-weight:500}.note{font-size:11px;padding:0 20px 16px;line-height:1.8}.rule{border-top:1px solid var(--line);margin:0 20px}.side-heading{padding:16px 20px 8px}.position{margin:4px 20px 12px;padding:12px;border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:4px;display:flex;flex-direction:column;gap:4px}.position strong{font-size:12px}.position span{font-size:11px;color:var(--muted)}.rebate>label{display:block;font-size:11px;padding:16px 20px 8px;color:var(--muted)}.rebate>select{margin:0 20px;width:calc(100% - 40px)}.rebate-value{font:500 16px var(--mono);padding:16px 20px 8px}.ledger{margin-bottom:24px}.empty-line{padding:24px;color:var(--muted);font-size:12px;text-align:center}.strategy{margin:24px 0}.strategy>.section-head{padding:16px 0}.strategy>.section-head a{font-size:12px}.explain-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px;padding:20px 0}.explain-grid summary{font-weight:600;font-size:13px;cursor:pointer}.explain-grid p{font-size:12px;color:var(--muted);line-height:1.9;margin-top:12px}.explain-grid code{font-family:var(--mono);color:var(--ink)}footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:20px 0 32px;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}.skip{position:fixed;top:-80px;left:16px;background:var(--panel);padding:12px;z-index:10}.skip:focus{top:12px}[hidden]{display:none!important}.stale{opacity:.55}.notice{padding:16px;background:var(--panel);color:var(--bad)}
@media(min-width:1440px){.workbench{grid-template-columns:minmax(0,1fr) 360px}.depth td,.depth th{padding:8px 20px}#spread-chart{height:304px}}
.cross-markets{margin-bottom:20px}.cross-markets .section-head .subtle{margin-top:4px}
.report-panel{margin-bottom:20px}.report-conclusion{padding:16px 20px;color:var(--accent)}#report-download{font-size:13px;min-height:44px;display:inline-flex;align-items:center}
.cross-markets td{font-size:11px}.cross-markets td:first-child{font-weight:600}
@media(max-width:1024px){.shell{padding:0 20px}.workbench{grid-template-columns:minmax(0,1fr) 288px;gap:16px}.main-column,.side-column{gap:16px}.account-strip>div{padding:16px}.account-strip strong{font-size:24px}.books{grid-template-columns:1fr}.book+ .book{border-left:0;border-top:1px solid var(--line)}.chart-heading{align-items:flex-start;flex-direction:column}.chart-legend{gap:8px}.section-head{padding:12px 16px}.explain-grid{gap:16px}}
@media(max-width:768px){.shell{padding:0 16px}.masthead{padding:20px 0 16px;align-items:flex-start}.head-meta{flex-direction:column;align-items:flex-end;gap:8px}.head-meta>a{display:none}h1{font-size:20px}.eyebrow{font-size:8px}.brand{gap:12px}.brand-mark{width:44px;height:44px;font-size:28px}.badge{font-size:10px;padding:4px 8px}.account-strip{grid-template-columns:1fr 1fr;margin-bottom:16px}.account-strip>div:nth-child(3){border-left:0;border-top:1px solid var(--line)}.account-strip>div:nth-child(4){border-top:1px solid var(--line)}.workbench{grid-template-columns:1fr}.side-column{display:grid;grid-template-columns:1fr 1fr;align-items:start}.paper-panel{grid-row:span 2}.chart-heading{flex-direction:row}.chart-wrap{min-height:200px}#spread-chart{height:240px}.books{grid-template-columns:1fr 1fr}.book+ .book{border-top:0;border-left:1px solid var(--line)}.explain-grid{grid-template-columns:1fr;gap:20px}.markets>.section-head{align-items:flex-start;flex-direction:column;gap:4px}.statusbar{align-items:flex-start}.statusbar #clock{font-size:10px;text-align:right}.chart-footer{flex-wrap:wrap}}
@media(max-width:480px){.shell{padding:0 12px}.brand-mark{display:none}.head-meta .badge{font-size:9px}.account-strip strong{font-size:24px}.account-strip>div{padding:12px}.primary-stat .tag{display:none}.side-column{display:flex}.books{grid-template-columns:1fr}.book+ .book{border-top:1px solid var(--line);border-left:0}.chart-heading{flex-direction:column}.chart-legend{font-size:10px}.section-head{gap:8px}.chart-wrap{margin:4px 0 0}#spread-chart{height:208px}.statusbar{font-size:10px}.asset-switch button{padding:8px 12px}.account-strip .subtle{font-size:10px}footer{font-size:10px}}
@media(max-width:768px){
  button,select,summary{min-height:44px}select{font-size:16px}
  .asset-switch button{min-width:64px}.market-link{min-width:64px;text-align:left}
  .account-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .account-strip>div{min-width:0}.account-strip strong{overflow-wrap:anywhere}
  .statusbar{flex-wrap:wrap}.section-head{flex-wrap:wrap}
  .markets table,.markets tbody,.markets tr,.markets td,
  .ledger table,.ledger tbody,.ledger tr,.ledger td{display:block;white-space:normal}
  .markets thead,.ledger thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
  .markets tbody tr,.ledger tbody tr{padding:8px 16px;border-bottom:1px solid var(--line)}
  .markets tbody tr:last-child,.ledger tbody tr:last-child{border-bottom:0}
  .markets tbody td,.ledger tbody td{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 0;border:0;text-align:right;font-size:12px;overflow-wrap:anywhere}
  .markets td::before,.ledger td::before{content:attr(data-label);font:12px var(--sans);color:var(--muted);text-align:left;flex-shrink:0}
  .markets td:first-child{border-bottom:1px solid var(--line);margin-bottom:4px;padding:0}
  .markets td:first-child::before{display:none}
  .cross-markets td:first-child{padding:12px 0}
  .cross-markets td:last-child{font-family:var(--sans);font-size:11px}
  .ledger td:first-child{font-family:var(--mono)}
  .chart-legend,.note,.table-note,.book-footer{font-size:12px}
  .books{grid-template-columns:1fr}.book+ .book{border-left:0;border-top:1px solid var(--line)}
  .depth td,.depth th{padding:8px;font-size:12px}
  .metrics dd{text-align:right;overflow-wrap:anywhere}.metrics dt{flex-shrink:0}
  footer{padding-bottom:calc(24px + env(safe-area-inset-bottom))}
}
@media(max-width:360px){
  .chart-panel .section-head{align-items:stretch;flex-direction:column}
  .range-label{display:flex;align-items:center;justify-content:space-between}
  .markets tbody td{gap:8px;font-size:11px}.markets td::before{font-size:11px}
  .account-strip strong{font-size:22px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}