:root {
  color-scheme: light;
  --bg: #f6f5f2;
  --surface-1: #fcfcfb;
  --border: #e4e2dc;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #7a7974;
  --grid: #ebe9e4;
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --series-3: #1baf7a;
  --series-4: #eda100;
  --neutral-mid: #f0efec;
  --div-pos: #2a78d6;
  --div-neg: #e34948;
  --good: #0ca30c;
  --warning: #fab219;
  --critical: #d03b3b;
  --rec-band: rgba(120, 118, 110, 0.14);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #111110;
    --surface-1: #1a1a19;
    --border: #2e2e2c;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted: #8f8e86;
    --grid: #2a2a28;
    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;
    --series-4: #c98500;
    --neutral-mid: #383835;
    --div-pos: #3987e5;
    --div-neg: #e66767;
    --rec-band: rgba(200, 198, 190, 0.10);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111110;
  --surface-1: #1a1a19;
  --border: #2e2e2c;
  --text-primary: #ffffff;
  --text-secondary: #c3c2b7;
  --text-muted: #8f8e86;
  --grid: #2a2a28;
  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --series-4: #c98500;
  --neutral-mid: #383835;
  --div-pos: #3987e5;
  --div-neg: #e66767;
  --rec-band: rgba(200, 198, 190, 0.10);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text-primary);
  font: 15px/1.6 system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
a { color: var(--series-1); }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.top { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; padding-top: 28px; }
h1 { font-size: 26px; margin: 0; letter-spacing: -0.01em; }
h1 .en { font-size: 15px; font-weight: 500; color: var(--text-muted); }
h2 { font-size: 19px; margin: 0 0 6px; }
h3 { font-size: 15px; margin: 22px 0 6px; color: var(--text-secondary); }
.sub { margin: 4px 0 0; color: var(--text-secondary); }
.tools { display: flex; gap: 8px; flex-shrink: 0; }
.btn.wide { width: auto; padding: 0 12px; font-size: 14px; }
.btn {
  background: var(--surface-1); color: var(--text-primary); border: 1px solid var(--border);
  border-radius: 8px; width: 36px; height: 36px; font-size: 17px; cursor: pointer;
}
.card {
  background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px;
  padding: 20px; margin: 16px 0;
}
.lede { color: var(--text-secondary); margin: 0 0 12px; }
.note { color: var(--text-muted); font-size: 13px; margin: 6px 0; }
.verdict { font-weight: 600; margin: 10px 0 0; }

.hero {
  margin-top: 20px; border-radius: 12px; padding: 20px; background: var(--surface-1);
  border: 1px solid var(--border); border-left: 6px solid var(--stance, var(--border));
  display: grid; grid-template-columns: auto 1fr; gap: 6px 20px; align-items: center;
}
.hero .badge { font-size: 34px; font-weight: 700; display: flex; align-items: center; gap: 10px; }
.hero .badge .ico {
  width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center;
  background: var(--stance); color: #fff; font-size: 20px;
}
.hero p { margin: 0; color: var(--text-secondary); }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; margin: 12px 0; }
.kpi { background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; }
.kpi .k { font-size: 13px; color: var(--text-muted); }
.kpi .v { font-size: 26px; font-weight: 650; font-variant-numeric: tabular-nums; }
.kpi .d { font-size: 12.5px; color: var(--text-secondary); overflow-wrap: anywhere; }

.toc { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 14px; margin: 6px 0 0; }
.toc a { text-decoration: none; }

.chart { width: 100%; height: 320px; }
.chart.tall { height: 640px; }
.chart.xtall { height: 560px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.tablewrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 13.5px; font-variant-numeric: tabular-nums; }
th, td { padding: 6px 8px; border-bottom: 1px solid var(--border); text-align: right; white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { color: var(--text-muted); font-weight: 600; }
td.wrapcell { white-space: normal; min-width: 180px; text-align: left; }
table.src th, table.src td { text-align: left; white-space: normal; vertical-align: top; }
table.src td.wrapcell { min-width: 140px; }
table.src td.nw, table.src th { white-space: nowrap; }
.pipe { margin: 0; padding-left: 20px; color: var(--text-secondary); }
.pipe li { margin: 4px 0; }
code { font-size: 0.92em; background: var(--neutral-mid); padding: 1px 5px; border-radius: 4px; }
table.heat td.cell { color: var(--text-primary); }
table.heat td.sig { font-weight: 700; }
.bar { display: inline-block; height: 8px; border-radius: 0 4px 4px 0; vertical-align: middle; }
.bar.neg { border-radius: 4px 0 0 4px; }

.steps { display: grid; gap: 4px; }
.step {
  display: grid; grid-template-columns: minmax(0, 1.6fr) 70px 90px minmax(0, 1.4fr); gap: 10px;
  align-items: center; padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 14px;
}
.step .st { font-size: 12px; font-weight: 600; padding: 1px 8px; border-radius: 10px; border: 1px solid var(--border); justify-self: start; }
.step .st.on { border-color: var(--critical); color: var(--critical); }
.step .lr { font-variant-numeric: tabular-nums; color: var(--text-secondary); }
.step .pbar { height: 10px; background: var(--neutral-mid); border-radius: 5px; position: relative; }
.step .pbar i { position: absolute; left: 0; top: 0; bottom: 0; background: var(--series-1); border-radius: 5px; }
.step .pv { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.step.head { color: var(--text-muted); font-size: 12.5px; font-weight: 600; }

.prose ul { padding-left: 20px; margin: 0; }
.prose li { margin: 6px 0; color: var(--text-secondary); }
.callout {
  border: 1px solid var(--border); border-left: 4px solid var(--series-1); border-radius: 8px;
  padding: 12px 14px; margin: 8px 0 4px; background: var(--bg);
}
.callout .big { font-size: 22px; font-weight: 650; font-variant-numeric: tabular-nums; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0; }
.chip { font-size: 12.5px; border: 1px solid var(--border); border-radius: 12px; padding: 2px 10px; color: var(--text-secondary); }
.chip.hit { border-color: var(--good); }
.chip.false { border-color: var(--critical); }
.prose-list { padding-left: 20px; margin: 0; color: var(--text-secondary); }
.prose-list li { margin: 5px 0; }
.guide .grid2 h3 { margin-top: 8px; }
table.guide-tbl th, table.guide-tbl td { text-align: left; white-space: normal; vertical-align: top; }
table.guide-tbl td:first-child { white-space: nowrap; font-weight: 600; }
details.faq { margin: 16px 0 6px; border-top: 1px solid var(--border); padding-top: 10px; }
details.faq summary { cursor: pointer; font-weight: 600; color: var(--text-secondary); }
details.faq dl { margin: 8px 0 0; }
details.faq dt { font-weight: 600; margin-top: 10px; }
details.faq dd { margin: 4px 0 0; color: var(--text-secondary); }
table.ol-tbl th, table.ol-tbl td { text-align: left; white-space: normal; vertical-align: top; }
table.ol-tbl td.res { white-space: nowrap; font-weight: 600; }
.pill { display: inline-block; font-size: 12px; font-weight: 600; padding: 1px 8px; border-radius: 10px; border: 1px solid var(--border); }
.pill.offensive { border-color: var(--good); }
.pill.balanced { border-color: var(--warning); }
.pill.defensive { border-color: var(--critical); }
.ok { color: var(--good); font-weight: 600; }
.no { color: var(--text-muted); font-weight: 600; }
.ol-notes h3 { margin-top: 14px; }
.foot { color: var(--text-muted); font-size: 13px; padding-bottom: 32px; }

@media (max-width: 760px) {
  .kpis { grid-template-columns: 1fr 1fr; }
  .grid2 { grid-template-columns: 1fr; }
  .hero { grid-template-columns: 1fr; }
  .hero .badge { font-size: 24px; }
  .step { grid-template-columns: 64px 56px minmax(0, 1fr); }
  .step > div:first-child { grid-column: 1 / -1; }
  .step.head { display: none; }
  .chart.tall { height: 720px; }
  h1 { font-size: 22px; }
}