.toc-rail{--toc-rail-accent:#197ca8;--toc-rail-line:#181f2424;--toc-rail-muted:#181f249e;--toc-rail-faint:#181f2457;--toc-rail-text:#181f24;--toc-rail-title:#181f2461;--toc-rail-width:184px;--toc-rail-top:max(116px, 24vh);--toc-rail-right:2rem;--toc-rail-left:auto;--toc-rail-z-index:20;--toc-rail-font-family:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--toc-rail-title-size:.6875rem;--toc-rail-link-size:.6875rem;--toc-rail-link-weight:500;--toc-rail-link-line-height:1.3;--toc-rail-link-indent:.75rem;--toc-rail-link-nested-indent:1.25rem;--toc-rail-panel-bottom-gap:clamp(1.5rem, 5vh, 5rem);--toc-rail-list-bottom-gap:clamp(1.5rem, 5vh, 180px);--toc-rail-list-end-space:clamp(1rem, 4vh, 3.5rem);--toc-rail-duration-fast:.15s;--toc-rail-duration-normal:.25s;--toc-rail-fade-duration:.5s;--toc-rail-ease-out:cubic-bezier(0, 0, .58, 1);--toc-rail-fade-transition:var(--toc-rail-fade-duration) var(--toc-rail-ease-out);--toc-rail-base-opacity:.72;--toc-rail-edge-opacity:1;--toc-rail-edge-offset:0px;--toc-rail-edge-translate:8px;--toc-rail-visibility-delay:0s;--_toc-rail-progress-floor:.012;--_toc-rail-viewport-height:100dvh;--_toc-rail-panel-height:max(0px, calc(var(--_toc-rail-viewport-height) - var(--toc-rail-top) - var(--toc-rail-panel-bottom-gap)));--_toc-rail-list-height:max(0px, min(var(--_toc-rail-panel-height), calc(var(--_toc-rail-viewport-height) - var(--toc-rail-top) - var(--toc-rail-list-bottom-gap))));top:var(--toc-rail-top);right:var(--toc-rail-right);left:var(--toc-rail-left);z-index:var(--toc-rail-z-index);width:var(--toc-rail-width);color:var(--toc-rail-text);font-family:var(--toc-rail-font-family);opacity:calc(var(--toc-rail-base-opacity) * var(--toc-rail-edge-opacity));transform:translateY(var(--toc-rail-edge-offset));visibility:visible;transition:opacity var(--toc-rail-fade-transition), transform var(--toc-rail-fade-transition), visibility 0s linear var(--toc-rail-visibility-delay);position:fixed}.toc-rail[hidden]{display:none}.toc-rail.is-initializing{opacity:0;visibility:hidden;transition:none}.toc-rail:focus-within,.toc-rail:hover,.toc-rail.is-scrolling{--toc-rail-base-opacity:1}.toc-rail.is-before-content,.toc-rail[data-toc-rail-state=hidden-before]{--toc-rail-visibility-delay:var(--toc-rail-fade-duration);opacity:0;pointer-events:none;transform:translateY(var(--toc-rail-edge-translate));visibility:hidden}.toc-rail.is-after-content,.toc-rail[data-toc-rail-state=hidden-after]{--toc-rail-visibility-delay:var(--toc-rail-fade-duration);pointer-events:none;visibility:hidden}.toc-rail__panel{max-height:var(--_toc-rail-panel-height);flex-direction:column;gap:.75rem;display:flex;overflow:clip}.toc-rail__title{color:var(--toc-rail-title);font-size:var(--toc-rail-title-size);letter-spacing:.08em;text-transform:uppercase;margin:0 0 0 .75rem;font-weight:700;line-height:1}.toc-rail__wrap{min-height:0;max-height:var(--_toc-rail-list-height);flex-direction:column;display:flex;position:relative;overflow:hidden}.toc-rail[data-toc-rail-mode=progress] .toc-rail__wrap{height:var(--_toc-rail-list-height)}.toc-rail__progress{top:4px;bottom:calc(4px + var(--toc-rail-list-end-space));background:var(--toc-rail-line);pointer-events:none;width:1px;position:absolute;left:0}.toc-rail__progress-fill{background:var(--toc-rail-accent);opacity:.9;width:100%;transform:scaleY(max(var(--toc-rail-progress,0), var(--_toc-rail-progress-floor)));transform-origin:top;transition:transform var(--toc-rail-duration-fast) linear;position:absolute;inset:0}.toc-rail.is-scrolling .toc-rail__progress-fill{transition:none}.toc-rail__list{max-height:var(--_toc-rail-list-height);min-height:0;padding:0 0 var(--toc-rail-list-end-space);scrollbar-width:none;flex-direction:column;flex:auto;gap:2px;margin:0;list-style:none;display:flex;overflow:auto}.toc-rail__list::-webkit-scrollbar{width:0;height:0}.toc-rail__item{min-width:0}.toc-rail__link{padding:4px 0 4px var(--toc-rail-link-indent);-webkit-line-clamp:2;color:var(--toc-rail-muted);font-size:var(--toc-rail-link-size);font-weight:var(--toc-rail-link-weight);line-height:var(--toc-rail-link-line-height);word-break:keep-all;transition:border-color var(--toc-rail-duration-fast) var(--toc-rail-ease-out), color var(--toc-rail-duration-fast) var(--toc-rail-ease-out);border-left:1px solid #0000;-webkit-box-orient:vertical;text-decoration:none;display:-webkit-box;overflow:hidden}.toc-rail__item--h3 .toc-rail__link,.toc-rail__item--h4 .toc-rail__link,.toc-rail__item--h5 .toc-rail__link,.toc-rail__item--h6 .toc-rail__link{padding-left:var(--toc-rail-link-nested-indent);color:var(--toc-rail-faint)}.toc-rail__item.is-active .toc-rail__link,.toc-rail__item[data-toc-rail-active=true] .toc-rail__link{color:var(--toc-rail-accent)}.toc-rail__link:hover{color:var(--toc-rail-text);opacity:1}.toc-rail__link:focus-visible{outline:2px solid var(--toc-rail-accent);outline-offset:3px}@media (prefers-reduced-motion:reduce){.toc-rail,.toc-rail__link,.toc-rail__progress-fill{transition:none}}[data-theme=dark] .toc-rail{--toc-rail-accent:#60a5fa;--toc-rail-line:#ffffff1f;--toc-rail-muted:#ffffffa6;--toc-rail-faint:#ffffff59;--toc-rail-text:#e2e8f0;--toc-rail-title:#fff6}