:root {
  color-scheme: dark;
  --bg: #0b0d10;
  --panel: #121821;
  --panel2: #19212c;
  --border: #273242;
  --text: #e9eef5;
  --muted: #a7b1be;
  --accent: #72c7ff;
  --gold: #ffd75e;
  --green: #78d7a1;
  --red: #ff9292;
  --radius: 14px;
  font-family: Arial, Helvetica, "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
}
* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; }
body {
  margin: 0; min-width: 320px; color: var(--text); background: var(--bg);
  font-size: 14px; line-height: 1.55; -webkit-text-size-adjust: 100%;
}
a { color: var(--accent); text-underline-offset: 3px; }
button, input, select { font: inherit; }
button, select, input { color: var(--text); }
button:focus-visible, input:focus-visible, select:focus-visible, a:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}
[hidden] { display: none !important; }
.skip-link { position: fixed; top: 8px; left: -100vw; z-index: 20; padding: 10px 14px; color: var(--text); background: var(--panel); border: 1px solid var(--border); border-radius: 8px; }
.skip-link:focus { left: 8px; }
.topbar {
  min-height: 58px; display: flex; gap: 18px; align-items: center; padding: 8px max(18px, calc((100vw - 1480px) / 2));
  border-bottom: 1px solid var(--border); background: rgba(11, 13, 16, .95);
  position: sticky; top: 0; z-index: 10; backdrop-filter: blur(12px);
}
.brand { display: inline-flex; gap: 10px; align-items: center; color: var(--text); text-decoration: none; font-size: 14px; font-weight: 700; white-space: nowrap; }
.brand img { display: block; object-fit: contain; }
.site-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.site-nav a { text-decoration: none; color: var(--muted); font-size: 13px; font-weight: 700; padding: 7px 11px; border-radius: 8px; white-space: nowrap; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--accent); background: var(--panel2); }
.page-shell { width: min(1480px, 100%); margin: 0 auto; padding: 34px 22px 56px; }
.page-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin: 0 0 24px; }
.eyebrow { margin: 0 0 3px; color: var(--accent); font-size: 10px; letter-spacing: .16em; line-height: 1.3; font-weight: 800; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 8px; font-size: clamp(24px, 3vw, 34px); line-height: 1.2; letter-spacing: -.025em; }
h2 { margin: 0; font-size: 17px; line-height: 1.3; }
.intro { max-width: 800px; margin-bottom: 0; color: var(--muted); }
.snapshot { color: var(--muted); font-size: 12px; text-align: right; white-space: nowrap; padding-bottom: 3px; }
.app-layout { display: grid; grid-template-columns: 300px minmax(0, 1fr); align-items: start; gap: 18px; }
.content-column { display: grid; gap: 16px; min-width: 0; }
.panel {
  min-width: 0; padding: 18px; border: 1px solid var(--border); border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(21, 29, 40, .98), rgba(16, 22, 30, .98));
  box-shadow: 0 12px 30px rgba(0,0,0,.12);
}
.selector-panel { position: sticky; top: 76px; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.range-heading { align-items: end; }
.quiet-button { border: 1px solid var(--border); border-radius: 8px; padding: 6px 9px; color: var(--muted); background: transparent; cursor: pointer; white-space: nowrap; }
.quiet-button:hover { color: var(--text); background: var(--panel2); }
.selector-panel > label, .lock-control > label, .search-label, .acquire-controls > label {
  display: block; margin: 13px 0 5px; color: var(--muted); font-size: 12px; font-weight: 700;
}
.selector-panel select, .selector-panel input, .search-label input, .positive-slot select,
.lock-control select, .acquire-controls select {
  width: 100%; min-height: 40px; border: 1px solid var(--border); border-radius: 8px;
  padding: 8px 10px; background: #0d1218;
}
.subtle, .field-hint { color: var(--muted); font-size: 11px; font-weight: 400; }
.search-label { min-width: 180px; margin: 0; }
.search-label input { display: block; margin-top: 5px; min-height: 36px; }
.disposition-box { display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; align-items: baseline; margin: 14px 0 4px; padding: 11px 12px; border: 1px solid var(--border); background: rgba(8,12,17,.5); border-radius: 10px; }
.disposition-box > span { color: var(--muted); font-size: 12px; }
.disposition-box strong { color: var(--gold); font-size: 20px; font-variant-numeric: tabular-nums; }
.disposition-box small { grid-column: 1 / -1; color: var(--muted); font-size: 11px; }
.field-hint { display: block; margin: 5px 0 0; line-height: 1.45; }
.side-note { margin-top: 18px; padding: 13px; background: rgba(114,199,255,.07); border: 1px solid rgba(114,199,255,.18); border-radius: 10px; }
.side-note strong { color: #cdeaff; font-size: 12px; }
.side-note p { margin: 6px 0 0; color: var(--muted); font-size: 11px; }
.section-intro { color: var(--muted); font-size: 12px; margin: -4px 0 13px; }
.table-scroll { overflow-x: auto; width: 100%; }
table { width: 100%; border-collapse: collapse; font-size: 12px; }
th, td { text-align: left; vertical-align: top; padding: 9px 10px; border-bottom: 1px solid rgba(39,50,66,.75); }
thead th { color: var(--muted); font-size: 11px; font-weight: 700; background: rgba(8,12,17,.4); white-space: nowrap; }
tbody tr:last-child td, tbody tr:last-child th { border-bottom: 0; }
.stat-table { min-width: 710px; }
.stat-table th:first-child { width: 30%; }
.stat-table td:not(:first-child) { font-variant-numeric: tabular-nums; }
.stat-name { font-weight: 700; color: var(--text); }
.stat-name small { display: block; color: var(--muted); font-size: 10px; font-weight: 400; }
.range-value { white-space: nowrap; }
.range-missing { color: #748090; }
.status-tags { display: flex; flex-wrap: wrap; gap: 4px; }
.tag, .pill { display: inline-flex; align-items: center; border: 1px solid var(--border); border-radius: 999px; padding: 2px 7px; color: var(--muted); font-size: 10px; white-space: nowrap; }
.tag.allowed { color: #a9ebc4; border-color: rgba(120,215,161,.35); background: rgba(120,215,161,.08); }
.tag.unresolved { color: #ffe09a; border-color: rgba(255,215,94,.35); background: rgba(255,215,94,.08); }
.tag.vintage { color: #d4c1ff; border-color: rgba(183,145,255,.35); background: rgba(183,145,255,.08); }
.tag.excluded { color: #818d9b; }
.pill { padding: 4px 9px; background: var(--panel2); color: var(--accent); font-weight: 700; }
.empty-state { margin: 12px 0 0; color: var(--muted); text-align: center; padding: 14px; }
.positive-slots { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 10px; }
.positive-slot { min-width: 0; padding: 10px; border: 1px solid var(--border); border-radius: 10px; background: rgba(8,12,17,.35); }
.positive-slot label { display: block; margin-bottom: 5px; color: var(--muted); font-size: 11px; font-weight: 700; }
.positive-slot select { min-height: 38px; }
.negative-fieldset { margin: 14px 0 0; padding: 10px 12px 12px; border: 1px solid var(--border); border-radius: 10px; min-width: 0; }
.negative-fieldset legend { padding: 0 6px; color: var(--muted); font-size: 12px; font-weight: 700; }
.negative-choices { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 6px 10px; }
.negative-choice { display: flex; align-items: flex-start; gap: 7px; padding: 6px; border-radius: 7px; background: rgba(8,12,17,.3); line-height: 1.35; }
.negative-choice input { margin: 2px 0 0; accent-color: var(--accent); }
.negative-choice span { font-size: 11px; }
.negative-choice small { display: block; color: var(--muted); font-size: 9px; }
.negative-choice.is-unresolved { outline: 1px dashed rgba(255,215,94,.4); }
.lock-control { display: grid; grid-template-columns: 1fr minmax(220px, 1.1fr); align-items: center; gap: 0 14px; margin-top: 13px; }
.lock-control > label { margin: 0; }
.lock-control .field-hint { grid-column: 2; }
.lock-control select { min-height: 38px; }
.notice { display: flex; flex-wrap: wrap; gap: 6px 10px; margin: 10px 0; padding: 10px 12px; border-radius: 9px; font-size: 12px; }
.notice.warning { color: #ffe3a7; border: 1px solid rgba(255,215,94,.3); background: rgba(255,215,94,.07); }
.notice.error { color: #ffd2d2; border: 1px solid rgba(255,120,120,.35); background: rgba(255,120,120,.08); }
.odds-summary { display: grid; grid-template-columns: 1.15fr repeat(3, minmax(0,1fr)); gap: 8px; margin: 10px 0 14px; }
.odds-lead, .metric { min-height: 99px; display: flex; flex-direction: column; justify-content: center; gap: 4px; padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: rgba(8,12,17,.42); }
.odds-lead { border-color: rgba(114,199,255,.32); }
.odds-lead span, .metric span { color: var(--muted); font-size: 11px; }
.odds-lead strong { color: var(--accent); font-size: 17px; }
.metric strong { font-size: 18px; font-variant-numeric: tabular-nums; }
.odds-lead small, .metric small { color: var(--muted); font-size: 10px; }
.strategy-table { min-width: 560px; }
.strategy-table tbody tr[data-active="true"] { background: rgba(114,199,255,.08); }
.strategy-name { color: var(--text); font-weight: 700; }
.strategy-caption { display: block; color: var(--muted); font-size: 10px; font-weight: 400; }
.strategy-prob, .num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.positive-color { color: var(--green); }
.negative-color { color: #ffbd87; }
.footnote { margin: 11px 0 0; color: var(--muted); font-size: 11px; }
.explain-box { padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: rgba(8,12,17,.35); color: var(--muted); font-size: 12px; }
.explain-box strong { color: var(--text); }
.explain-box .highlight { color: var(--gold); font-weight: 700; }
.acquire-controls { display: grid; grid-template-columns: 130px minmax(180px,1fr) 120px minmax(160px,.8fr); align-items: center; gap: 8px 10px; margin: 0 0 10px; }
.acquire-controls > label { margin: 0; }
.acquire-controls select { min-height: 36px; padding: 6px 8px; }
.grade-table { min-width: 700px; }
.grade-table tr[data-selected="true"] { background: rgba(255,215,94,.07); }
.grade-name { color: var(--gold); font-weight: 800; }
.splice-table { min-width: 620px; }
.splice-row-selected { background: rgba(114,199,255,.06); }
.splice-setup { margin: 16px 0 3px; padding-top: 14px; border-top: 1px solid var(--border); }
.splice-setup h3 { margin: 0 0 9px; font-size: 13px; }
.setup-result-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 8px; margin-top: 9px; }
.setup-result-grid .derivation-item { font-variant-numeric: tabular-nums; }
.math-panel { padding: 0; overflow: hidden; }
.math-panel > summary { display: flex; justify-content: space-between; align-items: center; padding: 16px 18px; cursor: pointer; list-style: none; }
.math-panel > summary::-webkit-details-marker { display: none; }
.math-panel > summary p { margin-bottom: 3px; }
.math-panel > summary strong { font-size: 15px; }
.math-panel[open] .chevron { transform: rotate(180deg); }
.chevron { color: var(--muted); font-size: 20px; transition: transform .15s ease; }
.math-body { padding: 0 18px 18px; color: var(--muted); font-size: 12px; }
.math-body ul { padding-left: 20px; }
.math-body li { margin: 5px 0; }
.derivation { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 8px; }
.derivation-item { padding: 10px; border: 1px solid var(--border); border-radius: 8px; background: rgba(8,12,17,.3); }
.derivation-item strong { display: block; color: var(--text); margin-bottom: 3px; }
.source-note { margin: 12px 0 0; font-size: 11px; }
.site-footer { width: min(1480px, 100%); margin: 0 auto; padding: 18px 22px 30px; border-top: 1px solid var(--border); color: var(--muted); font-size: 11px; }
.site-footer p { margin: 4px 0; }
.site-footer a { color: #9fd9ff; }
@media (max-width: 1050px) {
  .app-layout { grid-template-columns: 260px minmax(0,1fr); gap: 12px; }
  .panel { padding: 15px; }
  .odds-summary { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .positive-slots { grid-template-columns: 1fr; }
  .negative-choices { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .acquire-controls { grid-template-columns: 125px minmax(160px,1fr); }
  .setup-result-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 720px) {
  .topbar { padding: 7px 12px; gap: 8px; }
  .brand { gap: 7px; font-size: 12px; }
  .brand img { width: 32px; height: 32px; }
  .site-nav { gap: 0; }
  .site-nav a { padding: 7px 7px; font-size: 11px; }
  .page-shell { padding: 23px 12px 38px; }
  .page-heading { display: block; margin-bottom: 16px; }
  .snapshot { margin-top: 9px; text-align: left; }
  .app-layout { display: flex; flex-direction: column; }
  .selector-panel { position: static; width: 100%; }
  .content-column { width: 100%; }
  .panel { padding: 13px; border-radius: 12px; }
  .panel-heading { gap: 8px; }
  .range-heading { align-items: stretch; flex-direction: column; }
  .search-label { min-width: 0; }
  .positive-slots { grid-template-columns: 1fr; }
  .negative-choices { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .lock-control { grid-template-columns: 1fr; gap: 6px; }
  .lock-control .field-hint { grid-column: 1; }
  .odds-summary { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .odds-lead, .metric { min-height: 88px; padding: 10px; }
  .acquire-controls { grid-template-columns: 1fr; gap: 5px; }
  .acquire-controls > label:not(:first-child) { margin-top: 7px; }
  .derivation { grid-template-columns: 1fr; }
  .setup-result-grid { grid-template-columns: 1fr; }
  .site-footer { padding: 16px 12px 24px; }
}
@media (max-width: 390px) {
  .brand span { max-width: 100px; overflow: hidden; text-overflow: ellipsis; }
  .site-nav a { font-size: 10px; padding-inline: 5px; }
  .negative-choices { grid-template-columns: 1fr; }
  .odds-summary { grid-template-columns: 1fr 1fr; }
  .metric strong { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}