.reading-layout{--reader-paper:var(--paper);--reader-ink:var(--ink-2);--reader-muted:var(--ink-4);--reader-accent:var(--cinnabar);--reader-line:var(--line-2);--reader-nav-height:64px;--reader-top:calc(var(--reader-nav-height) + 24px);min-width:0}.reading-rail{display:none;min-width:0}.reading-layout :is([data-anchor],.prose [id]){scroll-margin-top:var(--reader-anchor-offset,96px)}.reading-layout .annotated-block{display:block}.reading-layout .annotated-copy{container-type:normal;min-width:0}.reading-layout .annotated-notes{margin-top:12px;border-left:0;border-top:0;padding:6px 0 0}.reading-layout .toc{font-family:var(--ui-font,inherit);margin:24px 0;border-top:1px solid var(--reader-line);padding:0;color:var(--reader-muted);font-size:14.5px;line-height:1.55;letter-spacing:0}.reading-layout .toc-inline{position:sticky;top:var(--reader-nav-height);z-index:20;background:var(--reader-paper)}.reading-layout .toc-inline>.toc-label::before{content:"";position:absolute;inset:0 calc((100% - 100vw)/2);z-index:-1;background:var(--reader-paper);pointer-events:none}.reading-layout .toc-label{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:44px;margin:0;padding:10px 0;list-style:none;cursor:pointer;font-family:inherit;font-size:14px;font-weight:400;font-style:normal;line-height:1.5;letter-spacing:.06em;text-transform:none;color:var(--reader-ink)}.reading-layout .toc[lang^=en]>.toc-label{font-family:eb garamond,serif;font-style:italic;letter-spacing:0}.reading-layout .toc[lang^=zh]>.toc-label{font-size:12px;letter-spacing:.16em}.reading-layout .toc-label::-webkit-details-marker{display:none}.reading-layout .toc-label::after{content:"＋";font-family:ui-monospace,monospace;font-size:12px;color:var(--reader-muted)}.reading-layout .toc[open]>.toc-label::after{content:"−"}.reading-layout .toc>nav{max-height:55dvh;overflow:auto;overscroll-behavior:contain;padding:0 4px 12px 0;scrollbar-width:thin;scrollbar-color:var(--line-strong)transparent}.reading-layout .toc :is(ul,ol){margin:0;padding:0;list-style:none}.reading-layout .toc :is(ul,ol) :is(ul,ol){margin:0;padding-left:14px;list-style:none}.reading-layout .toc li{margin:0;font-size:14.5px;line-height:1.55;letter-spacing:0}.reading-layout .toc a{display:block;min-height:44px;padding:8px 0 8px 12px;border:0;border-left:1px solid var(--reader-line);color:var(--reader-muted);overflow-wrap:anywhere}.reading-layout .toc a:hover{color:var(--reader-ink)}.reading-layout .toc a[aria-current=location]{border-left-color:var(--reader-accent);color:var(--reader-accent)}.reading-rail-sticky{position:sticky;top:var(--reader-top);display:flex;flex-direction:column;gap:24px;max-height:calc(100dvh - var(--reader-nav-height) - 72px);min-height:0}.reading-layout .toc-rail{flex:none;min-height:0;margin:0}.reading-layout .toc-rail>nav{max-height:calc(100dvh - var(--reader-nav-height) - 117px)}.reading-layout .reading-rail.has-notes .toc-rail>nav{max-height:max(40px,min(40dvh,calc((100dvh - var(--reader-nav-height) - 200px)/2)))}.reading-layout .toc-rail a{min-height:32px;padding-block:5px}.rail-notes{display:flex;flex-direction:column;min-height:0;flex:auto;border-top:1px solid var(--reader-line);padding-top:14px}.rail-notes[hidden]{display:none}.rail-notes-label{margin:0 0 10px;font-family:var(--ui-font,inherit);font-size:13px;font-weight:400;line-height:1.5;letter-spacing:.06em;color:var(--reader-muted)}.rail-notes-list{display:grid;gap:18px;min-height:0;overflow:auto;overscroll-behavior:contain;padding:3px 4px 4px;scrollbar-width:thin;scrollbar-color:var(--line-strong)transparent}.rail-note{display:block;min-width:0;margin:0;padding:0;border:0;color:var(--reader-muted);overflow-wrap:anywhere;scroll-margin-block:8px;transition:color .2s ease}.rail-note .sidenote-num::before{content:none}.rail-note[data-current]{color:var(--reader-ink)!important}.rail-note a,.sidenote-backref{color:var(--reader-accent);border:0}.rail-note a[role=doc-backlink],.sidenote-backref{margin-left:4px;font-size:12px}@media screen and (min-width:1280px){body:has(.reading-layout.has-rail) :is(main.wrap,footer.wrap,main.page-frame,footer.page-frame),html[data-reader-js] body:has(.reading-layout:not([data-rail-ready])>.reading-rail) :is(main.wrap,footer.wrap,main.page-frame,footer.page-frame){max-width:calc(1128px + clamp(36px,8vw,80px))}.reading-layout.has-rail,html[data-reader-js] .reading-layout:not([data-rail-ready]):has(>.reading-rail){display:grid;grid-template-columns:minmax(0,840px)240px;column-gap:48px;align-items:stretch}.reading-layout.has-rail>:is(.reading,[data-reading]),html[data-reader-js] .reading-layout:not([data-rail-ready]):has(>.reading-rail)>:is(.reading,[data-reading]){width:100%;max-width:840px;margin-inline:0;min-width:0}html[data-reader-js] .reading-layout:not([data-rail-ready]):has(>.reading-rail){position:relative}html[data-reader-js] .reading-layout:not([data-rail-ready]):has(>.reading-rail) .toc-inline{position:absolute;left:888px;top:clamp(28px,3.6vw,48px);width:240px;margin:0}html[data-reader-js] .reading-layout:not([data-rail-ready]):has(>.reading-rail) .toc-inline>.toc-label::before{content:none}.reading-layout.has-rail>.reading-rail{display:block;padding-top:clamp(28px,3.6vw,48px);padding-bottom:clamp(44px,6vw,80px)}.reading-layout.has-rail .toc-inline{display:none}.reading-layout.has-rail.has-margin-notes :is(.annotated-notes,.reading .sidenote){display:none}}@media(prefers-reduced-motion:reduce){.rail-note{transition:none}}@media print{.reading-layout.has-rail{display:block}.reading-layout .reading-rail,.reading-layout .toc{display:none!important}.reading-layout.has-rail.has-margin-notes .annotated-notes{display:block!important}.reading-layout.has-rail.has-margin-notes .reading .sidenote{display:block!important}.reading-layout.has-rail>:is(.reading,[data-reading]){max-width:none}}