:root{color-scheme:light;--bg:#f6f5f2;--panel:#fff;--panel-2:#f4f3f0;--ink:#262722;--muted:#646760;--line:#dedfd7;--accent:#b65324;--accent-2:#97431c;--green:#267457;--amber:#946312;--red:#a3352a;--chart-grid:#e5e6de;--chart-text:#646760;--chart-bar:#b65324;--chart-bar-hi:#d38052;--focus:#6748ad}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.6}a{color:var(--accent);text-underline-offset:4px}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--focus);outline-offset:3px}
.site-nav{display:flex;justify-content:space-between;gap:20px;align-items:center;max-width:1280px;margin:auto;padding:17px 30px;border-bottom:1px solid var(--line)}.site-nav a{text-decoration:none}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700}.brand b{background:var(--accent);color:white;border-radius:5px;padding:3px 9px;font-size:20px}.brand span{font-weight:400;color:var(--muted)}.site-nav>div{display:flex;gap:22px;font-size:13px}
.shell{width:min(1180px,calc(100% - 48px));margin:0 auto;padding:36px 0 60px}.intro{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:25px}.intro>div:first-child{max-width:780px}.eyebrow{color:var(--accent);letter-spacing:.1em;font-size:11px;font-weight:650;margin:0 0 12px}h1{font-size:clamp(28px,3.2vw,42px);line-height:1.3;margin:0;font-weight:700}.intro p:last-child{color:var(--muted);margin:13px 0 0;line-height:1.8}.run-stamp{font-size:11px;color:var(--muted);white-space:nowrap}.workspace{display:grid;grid-template-columns:350px minmax(0,1fr);gap:24px;align-items:start}.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px}.inputs{padding:24px}.panel-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;gap:14px}h2{margin:0;font-size:18px;line-height:1.4}.step{color:var(--muted);font-size:11px}.field-grid{display:grid;gap:16px}.field-grid label{min-width:0}.field-title{display:flex;justify-content:space-between;align-items:baseline;gap:8px;font-size:13px;font-weight:600;margin-bottom:7px}.hint{font-size:10px;color:var(--muted);font-weight:400}.input-wrap{display:flex;align-items:center;min-height:44px;border:1px solid var(--line);border-radius:5px;background:#fff}.prefix,.suffix{font-size:11px;color:var(--muted);padding:0 10px;white-space:nowrap;flex-shrink:0}.input-wrap input{width:100%;min-width:0;padding:10px 3px;background:transparent;border:0;font-size:16px;color:var(--ink);font-variant-numeric:tabular-nums}.scenario{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.scenario-name{display:block;margin-bottom:5px;font-size:11px;color:var(--muted)}.scenario input{padding-left:9px}.scenario .suffix{padding-left:3px;padding-right:8px}.seed-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:7px}.seed-row button{border:1px solid var(--line);border-radius:5px;background:var(--panel-2);color:var(--ink);font-size:11px;padding:0 10px;min-height:44px}select{width:100%;height:44px;padding:0 10px;border:1px solid var(--line);border-radius:5px;background:#fff;color:var(--ink)}.primary{width:100%;min-height:48px;color:#fff;background:var(--accent);border:0;border-radius:5px;font-weight:600;margin-top:4px}.primary:hover:not(:disabled){background:var(--accent-2)}.error{display:none;color:var(--red);background:#fdf1ed;padding:12px;border-radius:5px;font-size:13px}.error.show{display:block}
.results{display:grid;gap:20px;min-width:0}.result-status{color:var(--muted);font-size:12px;padding:10px 14px;border-left:3px solid var(--accent);background:#fff}.result-status.stale{background:#fff7e8;color:#754e16}.result-status.error-state{background:#fdf1ed;color:var(--red)}.results[data-stale="true"] .metrics,.results[data-stale="true"] .chart-panel{opacity:.55}.verdict{padding:25px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:22px;align-items:center;border-left:4px solid var(--amber)}.verdict.good{border-left-color:var(--green)}.verdict.stop{border-left-color:var(--red)}.verdict-label{color:var(--muted);font-size:11px;margin:0 0 12px}.verdict h2{font-size:clamp(21px,2.2vw,28px);margin:0 0 12px}.verdict p:last-child{font-size:13px;color:var(--muted);line-height:1.8;margin:0}.confidence{min-width:104px;text-align:center;border-left:1px solid var(--line);padding-left:20px}.confidence strong{display:block;font-size:37px;line-height:1.2;font-weight:650;font-variant-numeric:tabular-nums;color:var(--accent)}.confidence span{font-size:11px;display:block;margin-top:6px;color:var(--muted)}.metrics{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:1px;border:1px solid var(--line);background:var(--line);border-radius:7px;overflow:hidden}.metric{background:#fff;grid-column:span 2;padding:19px 18px;min-width:0}.metric.wide{grid-column:span 3}.metric-label{color:var(--muted);font-size:12px;margin-bottom:10px}.metric-value{font-size:30px;line-height:1.2;font-weight:650;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.metric-sub{font-size:11px;color:var(--muted);margin-top:8px}.chart-panel{padding:24px}.chart-head{display:flex;justify-content:space-between;gap:18px;align-items:center;margin-bottom:15px}.legend{display:flex;gap:12px;color:var(--muted);font-size:11px}.legend span{display:flex;gap:5px;align-items:center}.dot{width:8px;height:8px;background:var(--accent)}.line-dot{height:2px;width:12px;background:var(--ink)}.chart-wrap{height:270px;width:100%;min-width:0}canvas{display:block;width:100%;height:100%}.chart-caption{font-size:11px;color:var(--muted);margin-bottom:0}.method{border:1px solid var(--line);border-radius:8px;background:#fff;padding:24px;display:grid;gap:24px}.method h2{margin-bottom:12px}.formula{display:grid;gap:8px}.formula code{display:block;background:var(--panel-2);border-radius:4px;padding:11px 13px;font-size:12px;line-height:1.7;overflow-wrap:anywhere;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.method ul{padding-left:18px;margin:0;color:var(--muted);font-size:12px;line-height:1.9}.method li+li{margin-top:7px}.method strong{color:var(--ink)}.actions{display:flex;flex-wrap:wrap;gap:10px}.copy{border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:5px;padding:10px 13px;min-height:44px;font-size:12px}.copy:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.toast{color:var(--green);font-size:12px;min-height:20px;flex-basis:100%}footer{color:var(--muted);font-size:12px;border-top:1px solid var(--line);padding-top:18px;margin-top:26px;line-height:1.9}footer p{margin:0 0 12px}
@media(max-width:900px){.workspace{grid-template-columns:1fr}.shell{max-width:730px}.intro{display:block}.run-stamp{margin-top:15px}.site-nav{padding:14px 24px}.brand span{display:none}.site-nav>div{gap:14px}.inputs{position:static}}
@media(max-width:560px){.shell{width:calc(100% - 32px);padding-top:26px}.site-nav{padding:13px 16px;gap:12px}.site-nav>div{gap:12px;font-size:11px}.site-nav>div a:first-child{display:none}.brand{gap:7px;font-size:14px}h1{font-size:28px}.intro p:last-child{font-size:13px}.inputs,.chart-panel,.method{padding:18px}.verdict{padding:20px;grid-template-columns:1fr;gap:18px}.confidence{border-left:0;border-top:1px solid var(--line);padding:16px 0 0;text-align:left}.confidence strong{display:inline-block;font-size:31px}.confidence span{display:inline-block;margin-left:10px}.metric{padding:16px 13px}.metric-value{font-size:24px}.metric-sub{font-size:10px}.chart-head{align-items:flex-start;flex-direction:column;gap:10px}.chart-wrap{height:230px}.hint{font-size:10px}.field-title{gap:6px}.metrics{grid-template-columns:repeat(6,minmax(0,1fr))}.actions .copy{flex:1 1 140px}.run-stamp{white-space:normal}.prefix,.suffix{padding:0 8px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}