/* 早盘轮动回测页：由控制台 /backtest 加载，数据来自 /api/market/dataset */

:root{
  --bg:#f3f5f7; --surface:#ffffff; --surface-2:#eef1f4; --line:#dce1e7; --line-strong:#c3cad3;
  --text:#141a21; --text-2:#46505c; --muted:#6b7581; --accent:#24589e; --accent-soft:#e3ebf6;
  --up:#cf3434; --up-soft:rgba(207,52,52,.14); --down:#1d8653; --down-soft:rgba(29,134,83,.14);
  --s-a:#2a78d6; --s-b:#1baf7a; --s-c:#eda100; --s-d:#e87ba4; --s-e:#4a3aa7; --s-ew:#8d96a1;
  --i-50:#136f83; --i-300:#bd571f; --i-500:#687a20; --i-1000:#8b4e9d;
  --warn-bg:#fff6e6; --warn-line:#efd39c;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --serif:"Noto Serif SC","Songti SC","STSong",serif;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --bg:#0e1216; --surface:#151a20; --surface-2:#1b2129; --line:#252d37; --line-strong:#34404c;
    --text:#e5e9ee; --text-2:#b3bcc6; --muted:#87919c; --accent:#80a8e6; --accent-soft:#1c2a3d;
    --up:#f0605d; --up-soft:rgba(240,96,93,.18); --down:#3cbf7e; --down-soft:rgba(60,191,126,.16);
    --s-a:#3987e5; --s-b:#199e70; --s-c:#c98500; --s-d:#d55181; --s-e:#9085e9; --s-ew:#7b8591;
  --i-50:#50bfd4; --i-300:#f59d62; --i-500:#b8ca64; --i-1000:#cc98de;
    --warn-bg:#211b10; --warn-line:#4c3d1c;
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --bg:#0e1216; --surface:#151a20; --surface-2:#1b2129; --line:#252d37; --line-strong:#34404c;
  --text:#e5e9ee; --text-2:#b3bcc6; --muted:#87919c; --accent:#80a8e6; --accent-soft:#1c2a3d;
  --up:#f0605d; --up-soft:rgba(240,96,93,.18); --down:#3cbf7e; --down-soft:rgba(60,191,126,.16);
  --s-a:#3987e5; --s-b:#199e70; --s-c:#c98500; --s-d:#d55181; --s-e:#9085e9; --s-ew:#7b8591;
  --i-50:#50bfd4; --i-300:#f59d62; --i-500:#b8ca64; --i-1000:#cc98de;
  --warn-bg:#211b10; --warn-line:#4c3d1c;
}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--text);font:14px/1.65 var(--sans);margin:0}
.wrap{max-width:1240px;margin:0 auto;padding-inline:16px;padding-block:24px 64px}
header.top{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px 24px;padding-bottom:18px;border-bottom:1px solid var(--line)}
h1{font-family:var(--serif);font-size:26px;line-height:1.25;margin:0;letter-spacing:.01em;text-wrap:balance}
.meta{color:var(--muted);font-size:12.5px;display:flex;flex-wrap:wrap;gap:4px 14px}
.meta b{color:var(--text-2);font-weight:500;font-family:var(--mono)}
.layout{display:grid;grid-template-columns:272px minmax(0,1fr);gap:24px;margin-top:22px;align-items:start}
@media (max-width:900px){.layout{grid-template-columns:1fr}}
aside.panel{position:sticky;top:calc(env(safe-area-inset-top,0px) + 12px);background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:16px;display:flex;flex-direction:column;gap:14px}
@media (max-width:900px){aside.panel{position:static}}
.panel h2{font-size:12px;letter-spacing:.08em;color:var(--muted);font-weight:500;margin:0}
.field{display:flex;flex-direction:column;gap:5px}
.field label,.field .lab{font-size:12.5px;color:var(--text-2);display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.field label output{font-family:var(--mono);color:var(--text);font-size:13px}
.field .hint{font-size:11.5px;color:var(--muted);line-height:1.45}
select,input[type=number]{font:13px var(--sans);color:var(--text);background:var(--surface-2);border:1px solid var(--line);border-radius:6px;padding:6px 8px;width:100%}
input[type=range]{width:100%;accent-color:var(--accent)}
select:focus-visible,input:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.seg{display:flex;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.seg button{flex:1;font:12.5px var(--sans);padding:6px 4px;background:var(--surface-2);color:var(--text-2);border:0;border-right:1px solid var(--line);cursor:pointer}
.seg button:last-child{border-right:0}
.seg button[aria-pressed=true]{background:var(--accent-soft);color:var(--accent);font-weight:500}
.check{display:flex;gap:8px;align-items:flex-start;font-size:12.5px;color:var(--text-2);cursor:pointer}
.check input{margin-top:3px;accent-color:var(--accent)}
.divider{height:1px;background:var(--line);margin:2px 0}
main{display:flex;flex-direction:column;gap:22px;min-width:0}
section.block{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:18px}
section.block>h3{font-family:var(--serif);font-size:17px;margin:0 0 4px;text-wrap:balance}
.sub{color:var(--muted);font-size:12.5px;margin:0 0 12px}
.tw{overflow-x:auto}
table{border-collapse:collapse;width:100%;font-size:13px}
th,td{padding:7px 10px;border-bottom:1px solid var(--line);text-align:right;white-space:nowrap}
th{color:var(--muted);font-weight:500;font-size:12px}
td:first-child,th:first-child{text-align:left}
td.num,.num{font-family:var(--mono);font-variant-numeric:tabular-nums}
.p{color:var(--up)}.n{color:var(--down)}.mu{color:var(--muted)}
.sw{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:8px;vertical-align:-1px}
.strat-name{display:flex;align-items:center;white-space:nowrap}
.strat-name small{color:var(--muted);margin-left:6px;font-size:11.5px}
tr.best td{background:var(--accent-soft)}
.chart-box{position:relative;height:320px}
.chart-box.sm{height:170px}
@media (max-width:600px){.chart-box{height:260px}}
.legend{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:12.5px;color:var(--text-2);margin:0 0 8px}
.legend span{display:inline-flex;align-items:center}
.heat-ctrl{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:10px}
.heat-ctrl .seg{min-width:220px}
table.heat td{text-align:center;font-family:var(--mono);font-size:12px;padding:5px 4px;border:2px solid var(--surface);border-radius:3px;cursor:pointer;min-width:52px}
table.heat th{text-align:center;padding:4px}
table.heat td.rowh{text-align:left;color:var(--text-2);cursor:default;background:none}
table.heat td.cur{outline:2px solid var(--text);outline-offset:-2px}
table.heat td.aref{color:var(--text-2)}
.pill{display:inline-block;font-size:11.5px;padding:1px 8px;border-radius:10px;border:1px solid var(--line);color:var(--text-2);background:var(--surface-2)}
.pill.long{color:var(--up);border-color:var(--up);background:var(--up-soft)}
.pill.short{color:var(--down);border-color:var(--down);background:var(--down-soft)}
.pill.flat{color:var(--muted)}
.find{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin:6px 0 14px}
.find div{border:1px solid var(--line);border-radius:6px;padding:12px 14px;background:var(--surface-2)}
.find b{display:block;font-family:var(--mono);font-size:20px;font-weight:600;margin:2px 0}
.find span{font-size:12px;color:var(--muted)}
.prose{max-width:74ch;color:var(--text-2)}
.prose p{margin:8px 0}
.prose b{color:var(--text)}
ol.rec{padding-left:20px;margin:8px 0;max-width:80ch;color:var(--text-2)}
ol.rec li{margin:6px 0}
ol.rec b{color:var(--text)}
.cat{font-size:11.5px;color:var(--muted)}
tr.grp td{background:var(--surface-2);color:var(--muted);font-size:11.5px;letter-spacing:.04em;padding:4px 10px}
.warn{background:var(--warn-bg);border-color:var(--warn-line)}
.warn ul{margin:6px 0;padding-left:20px;color:var(--text-2);max-width:84ch}
.warn li{margin:4px 0}
.defs{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;margin-top:4px}
.defs div{font-size:12.5px;color:var(--text-2);border-left:3px solid var(--line-strong);padding:2px 0 2px 10px}
.defs b{color:var(--text);font-weight:500}
.bar-in{display:inline-block;height:6px;border-radius:3px;background:var(--line-strong);vertical-align:middle;margin-left:6px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.row2 .lab{font-size:11.5px;color:var(--muted)}
.arrow{color:var(--muted);margin:0 3px}
table.cmp td.delta{font-size:12px}
.note{font-size:12px;color:var(--muted);margin-top:8px;max-width:84ch}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

.load-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;margin-top:16px;padding:12px 14px;border:1px solid var(--line);border-radius:8px;background:var(--surface);font-size:13px;color:var(--text-2)}
.load-bar b{color:var(--text);font-family:var(--mono);font-weight:500}
.load-bar form{display:flex;gap:8px;flex-wrap:wrap}
.load-bar input[type=password]{font:13px var(--sans);color:var(--text);background:var(--surface-2);border:1px solid var(--line);border-radius:6px;padding:6px 8px;min-width:220px}
.load-bar button{font:13px var(--sans);padding:6px 12px;border-radius:6px;border:1px solid var(--accent);background:var(--accent-soft);color:var(--accent);cursor:pointer}
.load-bar a{color:var(--accent)}
.is-loading main, .is-loading aside.panel{opacity:.35;pointer-events:none}
.research-note{margin:0 0 10px;padding:8px 12px;border-left:3px solid var(--line-strong);color:var(--muted);font-size:12.5px}

/* Chart comparisons follow the same compact controls as the parameter panel. */
.chart-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
.chart-heading h3{margin:0}
.chart-period{min-width:174px;flex-shrink:0}
.chart-picker{border:1px solid var(--line);border-radius:6px;padding:12px;margin-bottom:10px;background:var(--surface-2)}
.chart-picker-top{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px 16px;margin-bottom:10px}
#chartSelectionStatus{font-size:12px;color:var(--text-2)}
.chart-presets{display:flex;flex-wrap:wrap;gap:6px}
.chart-presets button{font:12px var(--sans);color:var(--accent);background:var(--surface);border:1px solid var(--line-strong);border-radius:4px;padding:4px 8px;cursor:pointer}
.chart-presets button:hover{background:var(--accent-soft)}
.chart-picker fieldset{border:0;padding:0;margin:8px 0 0;min-width:0}
.chart-picker legend{font-size:11px;color:var(--muted);padding:0;margin-bottom:5px}
.chart-choices{display:flex;flex-wrap:wrap;gap:6px}
.chart-choice{display:flex;align-items:center;gap:6px;font-size:12px;line-height:1.5;padding:6px 9px;border:1px solid var(--line);border-radius:4px;background:var(--surface);cursor:pointer;user-select:none}
.chart-choice input{accent-color:var(--accent);margin:0;width:14px;height:14px}
.chart-choice .sw{width:12px;height:3px;margin:0;border-radius:0}
.chart-choice.is-selected{border-color:var(--line-strong);color:var(--text)}
.chart-choice.is-disabled{opacity:.5;cursor:not-allowed}
.chart-choice:focus-within{outline:2px solid var(--accent);outline-offset:1px}
.chart-period-note{margin:4px 0 12px;max-width:none}
.chart-empty{padding:56px 16px;text-align:center;color:var(--muted);border:1px dashed var(--line-strong);border-radius:6px}
[hidden]{display:none!important}
@media(max-width:600px){.chart-picker{padding:10px}.chart-choice{padding:7px 8px}.chart-picker-top{align-items:flex-start}.chart-period{min-width:153px}}