:root{--ink:#17202a;--muted:#637083;--paper:#f5f6f2;--panel:#fff;--line:#d9ddd6;--blue:#155eef;--blue-soft:#e7efff;--green:#087a55;--orange:#b54708;--radius:14px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}a{color:inherit}nav{max-width:1180px;margin:auto;padding:22px 28px;display:flex;justify-content:space-between;align-items:center;font-size:.82rem;font-weight:750;letter-spacing:.08em}nav div{display:flex;gap:24px}nav a{text-decoration:none}.brand{color:var(--blue)}.hero{min-height:600px;border-bottom:1px solid var(--line);background:radial-gradient(circle at 82% 25%,#dbe7ff 0,transparent 26%),linear-gradient(180deg,#fff 0,var(--paper) 100%)}.hero-copy{max-width:1180px;margin:auto;padding:92px 28px 80px}.eyebrow,.section-heading p{color:var(--blue);font-size:.74rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.hero h1{font-size:clamp(3.4rem,8vw,7rem);line-height:.88;letter-spacing:-.075em;margin:22px 0 28px;max-width:900px}.hero h1 span{color:var(--blue)}.lede{font-size:clamp(1.08rem,2vw,1.35rem);color:var(--muted);max-width:680px}.chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:34px}.chips span{border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.75);padding:7px 13px;font-size:.8rem;font-weight:650}main{max-width:1180px;margin:auto;padding:0 28px}section{padding:88px 0;border-bottom:1px solid var(--line)}.section-heading{display:grid;grid-template-columns:180px 1fr;align-items:start;margin-bottom:38px}.section-heading p{margin:8px 0}.section-heading h2,.rrf-panel h2,.method-grid h2{font-size:clamp(2rem,4vw,3.6rem);line-height:1;letter-spacing:-.045em;margin:0;max-width:780px}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}.stat strong{display:block;font-size:2rem;letter-spacing:-.04em}.stat 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button[aria-pressed="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}.category-chart{display:grid;gap:18px}.system-bar{display:grid;grid-template-columns:150px 1fr 60px;gap:14px;align-items:center}.track{height:18px;background:#e5e8e1;border-radius:99px;overflow:hidden}.fill{height:100%;background:var(--blue);border-radius:99px}.system-bar:nth-child(2) .fill{background:var(--green)}.system-bar:nth-child(3) .fill{background:var(--orange)}.rrf-panel{display:grid;grid-template-columns:1fr 1fr;gap:60px;background:var(--ink);color:#fff;margin:70px -28px 0;padding:70px 56px;border:0;border-radius:24px}.rrf-panel p:not(.eyebrow){color:#b9c2ce}.fusion{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:center;text-align:center}.fusion span{background:#26313e;border:1px solid #3b4653;padding:18px;border-radius:10px}.fusion strong{grid-column:1/-1;color:#9cbaff;font-size:2rem}.fusion code{grid-column:1/-1;background:#0e151d;padding:16px;border-radius:8px;color:#dce7ff}.explorer-controls{display:flex;flex-direction:column;gap:8px;max-width:720px}.explorer-controls label{font-size:.78rem;color:var(--muted);font-weight:700}.explorer-controls select{font:inherit;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:13px}.failure-detail{margin-top:24px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px}.failure-detail h3{font-size:1.45rem;margin-top:0}.retriever-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.retriever-card{border:1px solid var(--line);border-radius:10px;padding:16px;min-width:0}.retriever-card ol{padding-left:22px;font-size:.83rem;color:var(--muted)}.retriever-card code{font-size:.72rem;overflow-wrap:anywhere}.decomposition{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:20px}.decomposition div{border-left:4px solid var(--blue);padding:12px 20px;background:var(--panel)}.decomposition p{margin:3px 0;color:var(--muted)}.pipeline{display:flex;align-items:center;gap:10px;overflow:auto;padding:26px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}.pipeline span{white-space:nowrap;border:1px solid var(--line);padding:11px 13px;border-radius:8px;font-size:.8rem;font-weight:700}.pipeline i{color:var(--blue);font-style:normal}.method-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px}.method-grid ul{margin:0;padding-left:20px;color:var(--muted)}.method-grid li{margin-bottom:12px}footer{max-width:1180px;margin:auto;padding:44px 28px 60px;display:flex;justify-content:space-between;color:var(--muted);font-size:.8rem}footer div{display:flex;gap:18px;flex-wrap:wrap;justify-content:flex-end}.error{color:#b42318;background:#fff0ee;border:1px solid #f5c2bd;padding:16px;border-radius:10px}
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