:root{color-scheme:light;--ink:#172033;--muted:#697386;--line:#dde2ea;--panel:#fff;--soft:#f4f6f8;--strategy:#176b5b;--benchmark:#8a94a6;--negative:#b24a4a;--warn:#8a5d14}
*{box-sizing:border-box}body{margin:0;background:#f7f8fa;color:var(--ink);font-family:Inter,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}
.topbar{height:62px;padding:0 max(24px,calc((100vw - 1180px)/2));display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:rgba(255,255,255,.96)}
.brand{display:flex;align-items:center;gap:10px;font-weight:700}.brand span{display:grid;width:30px;height:30px;place-items:center;border-radius:8px;color:#fff;background:var(--ink)}.back-link{color:var(--muted);font-size:14px}
.page-shell{width:min(1180px,calc(100% - 32px));margin:0 auto;padding:50px 0 70px}.intro{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:end}
.eyebrow{margin:0 0 8px;color:var(--strategy);font-size:12px;font-weight:750;letter-spacing:.12em}h1,h2,p{margin-top:0}h1{margin-bottom:15px;font-size:clamp(34px,5vw,52px);letter-spacing:-.035em;line-height:1.05}h2{margin-bottom:0;font-size:22px;letter-spacing:-.02em}.lede{max-width:760px;margin-bottom:0;color:var(--muted);font-size:16px;line-height:1.75}
.date-block{min-width:245px;padding:18px 20px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}.date-block span,.date-block small{display:block;color:var(--muted);font-size:12px}.date-block strong{display:block;margin:5px 0 7px;font-size:21px}.date-block small.stale{color:var(--warn)}
.control-panel{margin:34px 0 48px;padding:24px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}.control-head,.section-title,.panel-head{display:flex;align-items:end;justify-content:space-between;gap:28px}.mode-note,.section-title>p,.panel-caption{max-width:560px;margin-bottom:0;color:var(--muted);font-size:13px;line-height:1.6;text-align:right}.mode-note.warning{color:var(--warn)}
.controls{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px;margin-top:20px}.controls label{display:flex;flex-direction:column;gap:7px;color:var(--muted);font-size:12px}.controls select,.controls input{width:100%;height:40px;padding:0 11px;border:1px solid #cfd6df;border-radius:8px;outline:none;background:#fff;color:var(--ink);font:inherit}.controls select:focus,.controls input:focus{border-color:var(--strategy);box-shadow:0 0 0 3px rgba(23,107,91,.1)}.controls select:disabled{background:#f0f2f5;color:#8a94a6}.selection-line{display:flex;justify-content:space-between;gap:20px;margin-top:19px;padding-top:16px;border-top:1px solid var(--line);font-size:13px}.selection-line span{color:var(--muted)}
.metric-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}.metric-card{padding:20px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}.metric-card small{display:block;color:var(--muted);font-size:12px}.metric-card b{display:block;margin:6px 0 9px;font-size:27px;letter-spacing:-.03em}.metric-card span{color:var(--muted);font-size:12px;line-height:1.5}.positive{color:var(--strategy)}.negative{color:var(--negative)}
.panel{margin-top:22px;padding:24px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}.panel-head{margin-bottom:18px}.legend{display:flex;gap:17px;color:var(--muted);font-size:12px}.legend span::before{content:"";display:inline-block;width:9px;height:9px;margin-right:6px;border-radius:2px}.strategy-key::before{background:var(--strategy)}.benchmark-key::before{background:var(--benchmark)}
.chart{min-height:280px;overflow:hidden}.chart svg{display:block;width:100%;height:100%;overflow:visible}.chart-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:30px}.chart-label{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;color:var(--muted);font-size:12px}.line-chart{min-height:255px}
.notes{display:grid;grid-template-columns:220px 1fr;gap:40px;margin-top:22px;padding:25px;border:1px solid #ded9cb;border-radius:12px;background:#fbfaf6}.notes ul{margin:0;padding-left:20px;color:#5f6470;font-size:13px;line-height:1.75}footer{padding:25px;border-top:1px solid var(--line);color:var(--muted);text-align:center;font-size:12px;background:#fff}.error{margin:20px 0;padding:14px 16px;border:1px solid #e0c4c4;border-radius:10px;background:#fff7f7;color:#8b3434;font-size:13px}
@media(max-width:900px){.controls{grid-template-columns:repeat(2,minmax(0,1fr))}.metric-cards{grid-template-columns:repeat(2,1fr)}.intro,.chart-grid,.notes{grid-template-columns:1fr}.date-block{min-width:0}.section-title,.panel-head,.control-head{align-items:flex-start;flex-direction:column;gap:11px}.section-title>p,.mode-note,.panel-caption{text-align:left}}
@media(max-width:520px){.page-shell{width:min(100% - 22px,1180px);padding-top:34px}.controls,.metric-cards{grid-template-columns:1fr}.selection-line{flex-direction:column;gap:7px}.control-panel,.panel{padding:18px}}