:root{--bg:#F6F8FC;--card:#fff;--ink:#0B1533;--soft:#3A4A74;--line:#DCE2EF;--acc:#4A33C9}
@media (prefers-color-scheme:dark){:root{--bg:#0A1024;--card:#111A36;--ink:#EEF2FF;--soft:#B9C2E0;--line:#243056;--acc:#A78BFA}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 Onest,-apple-system,"Segoe UI",Roboto,sans-serif;padding:0 16px}
main{max-width:760px;margin:0 auto;padding:24px 0 64px}a{color:var(--acc)}header.top{max-width:760px;margin:0 auto;padding:16px 0;display:flex;align-items:center;gap:10px}
header.top img{width:36px;height:36px}header.top a{font-weight:800;text-decoration:none;color:var(--ink)}
nav.crumbs{font-size:14px;color:var(--soft)}h1{font-size:clamp(1.6rem,4vw,2.3rem);line-height:1.2;margin:.4em 0}
.lead{font-size:1.1rem;color:var(--soft)}section{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px 20px;margin:16px 0}
h2{font-size:1.2rem;margin:0 0 8px}ol,ul{padding-left:1.2em}li{margin:6px 0}.cta{display:inline-block;background:#4A33C9;color:#fff;border-radius:999px;padding:12px 22px;font-weight:700;text-decoration:none;margin-top:6px}
.pn{display:flex;gap:12px;flex-wrap:wrap;justify-content:space-between;font-size:15px}.grid{columns:2 260px;column-gap:24px}.grid li{break-inside:avoid}
footer{max-width:760px;margin:0 auto;padding:24px 0;font-size:13px;color:var(--soft);border-top:1px solid var(--line)}
h3{font-size:1.05rem;margin:1.2em 0 .4em}.dl-table{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:15px}th,td{border:1px solid var(--line);padding:7px 10px;text-align:left;vertical-align:top}
blockquote{margin:0 0 1em;padding:10px 14px;border-left:4px solid var(--acc);background:rgba(74,51,201,.06)}details{border:1px solid var(--line);border-radius:10px;padding:8px 12px;margin:8px 0}summary{cursor:pointer;font-weight:700}
.dl-fig{margin:0 0 1em}.dl-fig svg{width:100%;height:auto;max-height:340px}.dv-grid{stroke:var(--line)}.dv-axis{stroke:var(--soft);stroke-width:1.6}.dv-tick{fill:var(--soft);font-size:12px}
.dv-curve{fill:none;stroke-width:3}.dv-curve--1{stroke:#6A48DE}.dv-curve--2{stroke:#0B7FB5}.dv-curve--3{stroke:#C0266E}.dv-pt{fill:#E0A100}.dv-pt-label{fill:var(--ink);font-size:13px;font-weight:700}
.dv-row{fill:none;stroke:var(--line)}.dv-dot{fill:#6A48DE}.dv-jump{fill:none;stroke:#0B7FB5;stroke-width:2.5}.dv-legend,.dv-cap{font-size:14px;color:var(--soft);text-align:center}.dv-legend__item{margin:0 8px}
.dl-self__n{font-weight:800;margin-right:6px}