:root{--reader-max-width: 720px;--reader-side-width: 220px;--reader-gap: 32px;--reader-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--reader-sidebar-collapsed: 52px;--reader-header-h: 60px;--reader-row-h: 44px;--reader-nav-row-h: 49px;--reader-sticky-h: var(--reader-header-h)}.collapsed-sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--reader-sidebar-collapsed);background:var(--bg);border-right:1px solid var(--border);z-index:200;display:flex;flex-direction:column;align-items:center;padding:16px 0;transition:width .3s cubic-bezier(.4,0,.2,1),box-shadow .3s ease;overflow:hidden}.collapsed-sidebar .sidebar-avatar{width:32px;height:32px;border-radius:50%;object-fit:cover;border:1px solid var(--border);flex-shrink:0;transition:width .3s,height .3s}.collapsed-sidebar .sidebar-expanded-content{opacity:0;transition:opacity .2s ease 0s;display:flex;flex-direction:column;align-items:center;padding:12px 16px 0;width:260px;pointer-events:none}@media(min-width:769px)and (hover:hover){.collapsed-sidebar:hover{width:260px;box-shadow:4px 0 24px #00000026}.collapsed-sidebar:hover .sidebar-avatar{width:150px;height:150px}.collapsed-sidebar:hover .sidebar-expanded-content{opacity:1;transition-delay:.15s;pointer-events:auto}.collapsed-sidebar:has(:focus-visible){width:260px;box-shadow:4px 0 24px #00000026}.collapsed-sidebar:has(:focus-visible) .sidebar-avatar{width:150px;height:150px}.collapsed-sidebar:has(:focus-visible) .sidebar-expanded-content{opacity:1;transition-delay:.15s;pointer-events:auto}}.collapsed-sidebar.is-expanded{width:260px;box-shadow:4px 0 24px #00000026}.collapsed-sidebar.is-expanded .sidebar-avatar{width:150px;height:150px}.collapsed-sidebar.is-expanded .sidebar-expanded-content{opacity:1;transition-delay:.15s;pointer-events:auto}.collapsed-sidebar .sidebar-hint{display:none;margin-top:6px;color:var(--text-muted);flex-shrink:0}@media(hover:none){.collapsed-sidebar{cursor:pointer;-webkit-tap-highlight-color:transparent}.collapsed-sidebar:not(.is-expanded) .sidebar-hint{display:block}.collapsed-sidebar .sidebar-links a{padding:6px 4px}}.collapsed-sidebar .sidebar-name{font-family:var(--font-heading);font-size:1.2rem;font-weight:var(--font-heading-weight);margin:8px 0 2px;text-align:center}.collapsed-sidebar .sidebar-role{font-size:.9rem;color:var(--text-muted);text-align:center;margin:0 0 12px}.collapsed-sidebar .sidebar-links{list-style:none;padding:0;margin:0;text-align:center}.collapsed-sidebar .sidebar-links li{margin-bottom:4px}.collapsed-sidebar .sidebar-links a{color:var(--link);font-size:.85rem;text-decoration:none;display:inline-flex;align-items:center;gap:6px}.collapsed-sidebar .sidebar-links a:hover{color:var(--link-hover)}.collapsed-sidebar .sidebar-theme-toggle{margin-top:auto;padding:12px 0;display:flex;justify-content:center}.reader-nav{display:flex;gap:1.25rem;align-items:center;width:100%;justify-content:space-between}.reader-nav-links{display:flex;gap:1.25rem;align-items:center;height:100%}.reader-header>.reader-nav-links{margin-left:auto}.reader-nav-item{color:var(--text);text-decoration:none;font-weight:500;font-size:.9rem;position:relative;display:flex;align-items:center;height:100%;padding:0 .25rem;transition:color .15s}.reader-nav-item:hover{color:var(--link)}.reader-nav-item:hover:after,.reader-nav-item.active:after{content:"";position:absolute;bottom:-2px;left:0;width:100%;height:2px;background-color:var(--link)}.reader-nav-item.active{color:var(--link)}.reader-search-btn{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:1px solid var(--border);border-radius:6px;background:none;color:var(--text-muted);cursor:pointer;transition:all .15s;padding:0}.reader-search-btn:hover{color:var(--link);border-color:var(--link)}.reader-search-btn:focus-visible,.reader-nav-item:focus-visible{outline:2px solid var(--link);outline-offset:2px}.reader-tools{display:flex;align-items:center;gap:4px;min-width:0;margin-left:-8px}.reader-tool{position:relative;display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 8px;border:none;border-radius:6px;background:none;color:var(--text-muted);font-family:inherit;font-size:13px;font-weight:500;line-height:1;cursor:pointer;white-space:nowrap;transition:color .15s,background-color .15s;-webkit-tap-highlight-color:transparent}.reader-tool:hover{color:var(--link)}.reader-tool .reader-tool-icon{transition:color .15s}.reader-tool[aria-expanded=true] .reader-tool-icon{color:var(--link)}.reader-tool:focus-visible{outline:2px solid var(--link);outline-offset:2px}.reader-tool-icon{flex-shrink:0}.reader-tool-count{font-size:11px;font-weight:600;padding:2px 6px;border-radius:99px;background:color-mix(in srgb,currentColor 12%,transparent)}.reader-tool-section{display:none}.share-panel{position:fixed;z-index:60;width:min(340px,calc(100vw - 16px));box-sizing:border-box;padding:12px;border:1px solid var(--border);border-radius:10px;background:var(--bg);color:var(--text);box-shadow:0 10px 30px #0000001f,0 2px 6px #0000000f;font-family:var(--font-body);font-size:13px;line-height:1.4}.share-panel[hidden],.share-panel [hidden]{display:none}.share-panel:focus{outline:none}.share-status{margin:0 0 8px;font-weight:600}.share-copied .share-status:before{content:"✓";margin-right:6px;color:var(--link)}.share-link{display:flex;gap:6px}.share-url{flex:1 1 auto;min-width:0;padding:6px 8px;border:1px solid var(--border);border-radius:6px;background:var(--bg-surface);color:var(--text-muted);font:inherit;font-size:12.5px}.share-url:focus{outline:none;border-color:var(--link)}.share-copy,.share-action{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:30px;padding:0 10px;border:1px solid var(--border);border-radius:6px;background:none;color:var(--text);font:inherit;font-weight:500;text-decoration:none;white-space:nowrap;cursor:pointer;transition:color .15s,border-color .15s}.share-copy{min-width:64px;font-weight:600}.share-copy:hover,.share-action:hover{color:var(--link);border-color:var(--link)}.share-panel :focus-visible{outline:2px solid var(--link);outline-offset:2px}.share-actions{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}@media(pointer:coarse){.share-url{font-size:16px}.share-copy,.share-action{min-height:38px}}.reader-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--link);opacity:.75;transform-origin:0 50%;transform:scaleX(var(--reader-progress, 0));pointer-events:none}.reader-layout{display:grid;grid-template-columns:var(--reader-side-width) minmax(0,var(--reader-max-width)) var(--reader-side-width);gap:var(--reader-gap);justify-content:center;margin-left:var(--reader-sidebar-collapsed);min-height:100vh;padding:0 24px}.reader-layout.graph-hidden{grid-template-columns:var(--reader-side-width) minmax(0,var(--reader-max-width))}.reader-layout[data-panels]{display:flex;flex-direction:column;gap:0;margin-left:0;padding:0}.reader-body{flex:1 0 auto;display:grid;grid-template-columns:var(--reader-side-width) minmax(0,var(--reader-max-width)) var(--reader-side-width);column-gap:var(--reader-gap);justify-content:center;padding:var(--reader-gap) 2rem 0}.reader-body>.reader-left{grid-column:1;grid-row:1}.reader-body>.reader-article{grid-column:2;grid-row:1}.reader-body>.reader-right{grid-column:3;grid-row:1}.reader-header>.reader-tools{margin-right:auto}.reader-layout:not([data-panels]) .reader-header{grid-column:1 / -1;display:flex;justify-content:flex-end;align-items:center;gap:1rem;padding:1rem 0;border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--bg);z-index:50}.reader-left{padding-top:2rem}.reader-left-sticky{position:sticky;top:calc(var(--reader-header-h) + 12px);max-height:calc(100vh - var(--reader-header-h) - 24px);max-height:calc(100dvh - var(--reader-header-h) - 24px);overflow-y:auto;padding-right:8px;scrollbar-width:thin;scrollbar-color:var(--border) transparent}.reader-panel-head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding-bottom:10px;margin-bottom:6px;border-bottom:1px solid var(--border)}.reader-panel-title{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted)}.reader-panel-note{font-size:12px;color:var(--text-muted);margin:2px 0 8px}.reader-panel-close{display:none;align-items:center;justify-content:center;width:36px;height:36px;margin:-6px -8px -6px 0;border:none;border-radius:8px;background:none;color:var(--text-muted);cursor:pointer;-webkit-tap-highlight-color:transparent}.reader-panel-close:hover{color:var(--text);background:var(--bg-surface)}.reader-panel-close:focus-visible{outline:2px solid var(--link);outline-offset:1px}.toc-container{font-size:13px;line-height:1.45}.toc-toggle{display:flex;align-items:center;justify-content:space-between;width:100%;background:none;border:none;cursor:pointer;padding:0 0 10px;margin:0 0 6px;border-bottom:1px solid var(--border);color:var(--text-muted)}.toc-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em}.toc-list{list-style:none;padding:0;margin:0}.toc-item{margin:0}.toc-level-3{padding-left:14px}.toc-link{display:block;padding:3px 10px;color:var(--text-muted);text-decoration:none;border-left:2px solid transparent;transition:color .15s ease,border-color .15s ease;overflow-wrap:break-word}.toc-link:hover{color:var(--text);border-left-color:var(--border-hover);text-decoration:none}.toc-link:focus-visible{outline:2px solid var(--link);outline-offset:-2px}.toc-active .toc-link{color:var(--link);border-left-color:var(--link);font-weight:500}.toc-link .katex,.reader-tool-section .katex{font-size:1em}.reader-article{padding:2rem 0 6rem;font-family:var(--font-body);font-size:15px;line-height:1.6;color:var(--text);min-width:0;overflow-wrap:break-word}.reader-article iframe,.reader-article video,.reader-article canvas{max-width:100%}.reader-article h1{font-family:var(--font-heading);font-size:2rem;font-weight:var(--font-heading-weight);line-height:1.2;margin:0 0 .25rem;letter-spacing:-.02em}.reader-article .reader-meta{color:var(--text-muted);font-family:var(--font-body);font-size:.9rem;margin-bottom:2rem;padding-bottom:1.25rem;border-bottom:1px solid var(--border)}.reader-article .reader-meta .reader-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}.reader-article .reader-meta .reader-tag{display:inline-block;padding:3px 12px;border-radius:99px;font-size:.78rem;font-weight:500;background:var(--bg-surface);color:var(--text-muted);border:1px solid var(--border);cursor:pointer;transition:all .15s;text-decoration:none}.reader-article .reader-meta .reader-tag:hover{color:var(--link);border-color:var(--link);background:var(--bg-card)}.reader-article .reader-meta .reader-meta-badges{display:flex;align-items:center;gap:8px;margin-top:8px}.reader-article .reader-meta .reader-diff-badge{font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;padding:2px 8px;border-radius:4px;border:1px solid}.reader-article .reader-meta .reader-read-time{font-size:.8rem;color:var(--text-muted)}.reader-article h2{font-family:var(--font-heading);font-size:1.45rem;font-weight:var(--font-heading-weight);margin:2.5rem 0 .8rem;letter-spacing:-.015em;scroll-margin-top:calc(var(--reader-sticky-h) + 16px)}.reader-article h3{font-family:var(--font-heading);font-size:1.15rem;font-weight:var(--font-heading-weight);margin:2rem 0 .6rem;scroll-margin-top:calc(var(--reader-sticky-h) + 16px)}.reader-article h4{font-family:var(--font-body);font-size:1rem;font-weight:600;margin:1.5rem 0 .5rem;scroll-margin-top:calc(var(--reader-sticky-h) + 16px)}.reader-article p{margin:0 0 .9rem}.reader-article a{color:var(--link);text-decoration:none;transition:color .15s}.reader-article a:hover{color:var(--link-hover);text-decoration:underline}.reader-article h2 a,.reader-article h3 a,.reader-article h4 a,.reader-article h2 a:hover,.reader-article h3 a:hover,.reader-article h4 a:hover{color:inherit;text-decoration:none}.reader-article a.wiki-link{text-decoration:none;border-bottom:none;color:var(--link)}.reader-article a.wiki-link:hover{text-decoration:underline;color:var(--link-hover)}.reader-article a.wiki-link-missing{color:var(--text-muted);text-decoration:underline dotted 1px;text-underline-offset:3px;cursor:help}.reader-article a.wiki-link-missing:after{content:"🚧";font-size:.75em;margin-left:.2em;opacity:.7;display:inline-block;vertical-align:baseline;text-decoration:none}.reader-article a.wiki-link-missing:hover{color:var(--text);text-decoration:underline dotted 1px}.reader-article .citation-group{white-space:nowrap}.reader-article a.citation-link,.reader-article a.cite-ref,.reader-article sup a[href^="#ref-"]{color:var(--text);font-size:.88em;text-decoration:none;border:none;font-weight:500;vertical-align:baseline;transition:color .15s}.reader-article a.citation-link:hover,.reader-article a.cite-ref:hover,.reader-article sup a[href^="#ref-"]:hover{color:var(--link)}.reader-article blockquote{margin:1.5rem 0;padding:1rem 1.25rem;border-left:3px solid var(--border-hover);background:var(--bg-surface);border-radius:0 6px 6px 0;font-style:italic}.reader-article blockquote p:last-child{margin-bottom:0}.reader-article .references-section{margin-top:2.5rem;padding-top:1.25rem;border-top:1px solid var(--border)}.reader-article .references-section>h2{margin-top:0}.reader-article .references-list{list-style:none;margin:0;padding:0}.reader-article .citation-item{display:flex;gap:8px;margin-bottom:10px;font-size:.9em;line-height:1.55;scroll-margin-top:calc(var(--reader-sticky-h) + 16px)}.reader-article .citation-item:target{margin-left:-8px;padding:4px 8px;border-radius:4px;background:color-mix(in srgb,var(--link) 8%,transparent)}.reader-article .citation-number{flex-shrink:0;min-width:24px;font-weight:600;color:var(--text-muted)}.reader-article .ref-title{color:var(--link)}.reader-article .callout{margin:1.5rem 0;padding:0;border-radius:8px;overflow:hidden}.reader-article .callout-title{font-family:var(--font-body);font-size:.95em;font-weight:700;line-height:1.45;padding:12px 18px 4px}.reader-article .callout-label{font-style:italic;font-weight:400;margin-right:.15em}.reader-article .callout-name{font-weight:700}.reader-article .callout-content{padding:2px 18px 14px;font-size:.95em}.reader-article .callout-untitled>.callout-content{padding-top:14px}.reader-article .callout-content p:last-child{margin-bottom:0}.reader-article .callout[data-callout-color=blue]{border-color:#378add;background:#378add0a}.reader-article .callout[data-callout-color=blue] .callout-title{color:#185fa5}.reader-article .callout[data-callout-color=teal]{border-color:#1d9e75;background:#1d9e750a}.reader-article .callout[data-callout-color=teal] .callout-title{color:#0f6e56}.reader-article .callout[data-callout-color=green]{border-color:#639922;background:#6399220a}.reader-article .callout[data-callout-color=green] .callout-title{color:#3b6d11}.reader-article .callout[data-callout-color=amber]{border-color:#ba7517;background:#ba75170a}.reader-article .callout[data-callout-color=amber] .callout-title{color:#854f0b}.reader-article .callout[data-callout-color=red]{border-color:#e24b4a;background:#e24b4a0a}.reader-article .callout[data-callout-color=red] .callout-title{color:#a32d2d}.reader-article .callout[data-callout-color=coral]{border-color:#d85a30;background:#d85a300a}.reader-article .callout[data-callout-color=coral] .callout-title{color:#993c1d}.reader-article .callout[data-callout-color=purple]{border-color:#7f77dd;background:#7f77dd0a}.reader-article .callout[data-callout-color=purple] .callout-title{color:#534ab7}.reader-article .callout[data-callout-color=gray]{border-color:#888780;background:#8887800a}.reader-article .callout[data-callout-color=gray] .callout-title{color:#5f5e5a}:root:not(.light-theme) .reader-article .callout[data-callout-color=blue]{background:#378add14}:root:not(.light-theme) .reader-article .callout[data-callout-color=blue] .callout-title{color:#85b7eb}:root:not(.light-theme) .reader-article .callout[data-callout-color=teal]{background:#1d9e7514}:root:not(.light-theme) .reader-article .callout[data-callout-color=teal] .callout-title{color:#5dcaa5}:root:not(.light-theme) .reader-article .callout[data-callout-color=green]{background:#63992214}:root:not(.light-theme) .reader-article .callout[data-callout-color=green] .callout-title{color:#97c459}:root:not(.light-theme) .reader-article .callout[data-callout-color=amber]{background:#ba751714}:root:not(.light-theme) .reader-article .callout[data-callout-color=amber] .callout-title{color:#ef9f27}:root:not(.light-theme) .reader-article .callout[data-callout-color=red]{background:#e24b4a14}:root:not(.light-theme) .reader-article .callout[data-callout-color=red] .callout-title{color:#f09595}:root:not(.light-theme) .reader-article .callout[data-callout-color=coral]{background:#d85a3014}:root:not(.light-theme) .reader-article .callout[data-callout-color=coral] .callout-title{color:#f0997b}:root:not(.light-theme) .reader-article .callout[data-callout-color=purple]{background:#7f77dd14}:root:not(.light-theme) .reader-article .callout[data-callout-color=purple] .callout-title{color:#afa9ec}:root:not(.light-theme) .reader-article .callout[data-callout-color=gray]{background:#88878014}:root:not(.light-theme) .reader-article .callout[data-callout-color=gray] .callout-title{color:#b4b2a9}.reader-article .callout-note{border-color:#378add;background:#378add0a}.reader-article .callout-warning{border-color:#ba7517;background:#ba75170a}.reader-article .callout-tip{border-color:#1d9e75;background:#1d9e750a}.reader-article .callout-important{border-color:#d85a30;background:#d85a300a}.reader-article .callout-danger{border-color:#e24b4a;background:#e24b4a0a}:root:not(.light-theme) .reader-article .callout-note{background:#378add14}:root:not(.light-theme) .reader-article .callout-warning{background:#ba751714}:root:not(.light-theme) .reader-article .callout-tip{background:#1d9e7514}:root:not(.light-theme) .reader-article .callout-important{background:#d85a3014}:root:not(.light-theme) .reader-article .callout-danger{background:#e24b4a14}.reader-article .callout[data-callout-color=custom]{background:color-mix(in srgb,var(--callout-color) 5%,transparent)}.reader-article .callout[data-callout-color=custom] .callout-title{color:var(--callout-color)}:root:not(.light-theme) .reader-article .callout[data-callout-color=custom]{background:color-mix(in srgb,var(--callout-color) 8%,transparent)}.reader-article .callout-foldable .callout-title{padding-bottom:12px;cursor:pointer;user-select:none;-webkit-tap-highlight-color:transparent}.reader-article .callout-title .disclosure-arrow{margin-left:.4em}.reader-article .callout-foldable .callout-title:focus-visible{outline:2px solid var(--link);outline-offset:-2px}.reader-article .callout-foldable .callout-content.fold{padding:0}.reader-article .callout-foldable .callout-content>.fold-inner{padding:0 18px}.reader-article .callout-foldable .callout-content>.fold-inner:after{content:"";display:block;height:14px}.reader-article .callout-foldable .callout-visible{padding:0 18px 8px;font-size:.95em}.reader-article .callout-foldable .callout-visible p:last-child{margin-bottom:0}.reader-article img{max-width:100%;height:auto;border-radius:6px;margin:1.5rem 0}.reader-article figure{margin:2rem 0}.reader-article figure:not([data-rehype-pretty-code-figure]){text-align:center}.reader-article figcaption{font-family:var(--font-body);font-size:.85rem;color:var(--text-muted);margin-top:8px;font-style:italic}.reader-article ul,.reader-article ol{padding-left:1.5rem;margin:0 0 1.1rem}.reader-article li{margin-bottom:.4rem}.reader-article li>ul,.reader-article li>ol{margin:.3rem 0 0}.reader-article table{width:100%;border-collapse:collapse;margin:1.5rem 0;font-size:.9rem}.reader-article .table-scroll{margin:1.5rem 0;overflow-x:auto;-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain;scrollbar-width:thin;scrollbar-color:var(--border) transparent}.reader-article .table-scroll>table{margin:0}.reader-article .table-scroll:focus-visible{outline:2px solid var(--link);outline-offset:2px}.reader-article th,.reader-article td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--border)}.reader-article th{font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted)}.reader-article hr{border:none;border-top:1px solid var(--border);margin:2.5rem 0}.reader-article code{font-family:var(--reader-mono);font-size:.85em}.reader-article :not(pre)>code{padding:2px 6px;border-radius:4px;background:var(--bg-surface);border:1px solid var(--border);font-size:.82em}.reader-article figure[data-rehype-pretty-code-figure]{margin:1.5rem 0;position:relative}.reader-article pre{padding:1.25rem 1.5rem;border-radius:8px;border:1px solid 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