.guide-body{gap:var(--space-layout);padding-block:var(--space-panel) var(--space-section);border-top:var(--border-subtle);grid-template-columns:minmax(0,1fr) minmax(0,1.45fr);align-items:start;display:grid}.guide-prose{max-width:var(--measure-reading)}.guide-prose section+section{margin-top:var(--space-section)}.guide-prose h2{font-size:var(--size-heading);line-height:1.25}.guide-rail{--rail-inset:var(--space-inline);top:var(--rail-inset);block-size:calc(100svh - 2 * var(--rail-inset));flex-direction:column;justify-content:center;display:flex;position:sticky}.guide-contents{margin-top:var(--space-panel);font-size:var(--size-small)}.guide-contents ol{border-left:1px solid var(--line-accent);position:relative}.guide-contents a{gap:var(--space-inline);padding:var(--space-inline) var(--space-control);font-size:var(--size-small);color:var(--ink-muted);border-left:2px solid #0000;grid-template-columns:1.8rem 1fr;margin-left:-1px;display:grid}.guide-contents a>span{font-size:var(--size-label)}.guide-contents a:hover{color:var(--accent)}.guide-contents a[aria-current=location]{color:var(--accent);background:linear-gradient(90deg, var(--surface-tint), transparent);border-left-color:var(--accent)}.chapter-next[data-empty]{visibility:hidden}.guide-body:not([data-enhanced]) .guide-stage{display:none}.guide-stage{max-width:28rem}.chapter-graphic{margin:0}.chapter-diagram{background:var(--illustration-glow);place-items:center;min-height:12rem;display:grid;position:relative}.chapter-emblem{border:1px solid var(--line-accent);width:5rem;height:5rem;box-shadow:0 0 0 1rem var(--surface-halo), 0 0 0 calc(1rem + 1px) var(--line-accent);color:var(--accent);background:var(--surface-panel);border-radius:50%;place-items:center;display:grid}.chapter-emblem .service-symbol{width:3rem;height:3rem}.chapter-next{align-items:center;gap:var(--space-control);margin-top:var(--space-content);color:var(--ink-muted);font-size:var(--size-label);min-height:2.5rem;display:flex}.chapter-next-symbol{color:var(--accent);display:flex}.chapter-next-label{font-size:var(--size-label);margin-bottom:.2rem;display:block}.chapter-graphic figcaption{min-block-size:2.7em;margin-top:var(--space-content);letter-spacing:-.03em;max-width:23rem;font-size:1.35rem;line-height:1.35}.chapter-inline{margin-bottom:var(--space-panel)}.chapter-label{font-size:var(--size-label);color:var(--accent);margin-bottom:var(--space-control)}@media (width>=851px){.guide-prose>.reference-section:first-child{border-top:0}.guide-body[data-enhanced] .chapter-inline{display:none}.guide-stage .chapter-diagram{min-height:clamp(8rem,18svh,12rem)}.guide-contents ol{max-height:38svh;overflow-y:auto}}@media (width<=850px),(height<=600px){.guide-body{grid-template-columns:1fr}.guide-rail{block-size:auto;display:block;position:static}.guide-stage{display:none}.guide-body[data-enhanced] .chapter-inline{display:block}.guide-contents ol{max-height:none}.guide-prose{max-width:none}.chapter-graphic{max-width:32rem}}@media print{.guide-rail{display:none}.guide-body,.guide-body[data-enhanced] .chapter-inline{display:block}}