.prose .callout{--callout-accent: var(--muted);--callout-line: var(--border);position:relative;padding:4px 0 4px 16px;margin:1rem 0;background:transparent;border:0;border-radius:0;box-shadow:none;font-family:LXGW WenKai,Kaiti SC,STKaiti,serif}.prose .callout:before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--callout-line)}.prose .callout>:last-child{margin-bottom:0}.prose .callout .callout-title{display:flex;align-items:center;gap:.5rem;margin:0 0 .35rem;font-weight:600;font-style:italic;letter-spacing:.02em;line-height:1.2}.prose .callout .callout-icon{display:none}.prose .callout .callout-title:before{content:"";display:inline-flex;align-items:center;justify-content:center;width:1rem;height:1rem;flex:0 0 1rem;border-radius:999px;box-shadow:inset 0 0 0 2px var(--callout-accent);background:transparent;color:var(--callout-accent)}.prose .callout strong{font-weight:650}.prose .callout.note{--callout-accent: var(--muted);--callout-icon: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0%200%2024%2024' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M12%2020h9'/><path d='M16.5%203.5a2.1%202.1%200%200%201%203%203L7%2019l-4%201%201-4%2012.5-12.5z'/></svg>")}.prose .callout.tip{--callout-accent: #7a9b87;--callout-icon: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0%200%2024%2024' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M15%2014c.2-1%20.7-1.7%201.5-2.5%201-.9%201.5-2.2%201.5-3.5A6%206%200%200%200%206%208c0%201%20.2%202.2%201.5%203.5.7.7%201.3%201.5%201.5%202.5'/><path d='M9%2018h6'/><path d='M10%2022h4'/></svg>")}.prose .callout.info{--callout-accent: var(--faint);--callout-icon: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0%200%2024%2024' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><circle cx='12' cy='12' r='9'/><path d='M12%2010v6'/><path d='M12%207h.01'/></svg>")}.prose .callout.warning{--callout-accent: var(--accent);--callout-icon: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0%200%2024%2024' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M10.3%203.9l-8.4%2014.5a1.6%201.6%200%200%200%201.4%202.4h16.4a1.6%201.6%200%200%200%201.4-2.4L13.7%203.9a1.6%201.6%200%200%200-3.4%200z'/><path d='M12%209v5'/><path d='M12%2016h.01'/></svg>")}@supports ((-webkit-mask-image: url()) or (mask-image: url())){.prose .callout .callout-title:before{border-radius:0;box-shadow:none;background:var(--callout-accent);-webkit-mask:var(--callout-icon) no-repeat center / contain;mask:var(--callout-icon) no-repeat center / contain}}.prose .callout .callout-title[data-icon]:before{content:attr(data-icon);width:auto;height:auto;min-width:1rem;line-height:1;border-radius:0;box-shadow:none;background:transparent;-webkit-mask:none;mask:none}.prose .callout .callout-title[data-icon=none]:before{display:none}@supports (background: color-mix(in oklch,#000 10%,#fff)){.prose .callout{--callout-line: color-mix(in oklch, var(--border) 70%, var(--bg))}.prose .callout.note{--callout-accent: color-mix(in oklch, var(--text) 65%, var(--border))}.prose .callout.info{--callout-accent: color-mix(in oklch, var(--accent) 35%, var(--text))}.prose .callout.warning{--callout-accent: color-mix(in oklch, var(--accent) 65%, black)}}.prose figure{margin:18px 0}.prose figure>:is(img,picture){display:block;max-width:100%;height:auto;margin:0 auto}.prose figure>picture>img{display:block;max-width:100%;height:auto;margin:0 auto}.prose figure>figcaption{margin-top:6px;text-align:center;font-size:.9em;font-family:LXGW WenKai,Kaiti SC,STKaiti,serif;color:var(--muted)}pre:is(.astro-code,.shiki){background-color:var(--code-content-bg)!important}pre:is(.astro-code,.shiki) span{background-color:transparent!important}pre:is(.astro-code,.shiki) span[style*=--shiki-light]{color:var(--shiki-light)!important}:root[data-theme=dark] pre:is(.astro-code,.shiki) span[style*=--shiki-dark]{color:var(--shiki-dark)!important}:root[data-theme=dark] pre:is(.astro-code,.shiki){color:var(--shiki-dark, var(--text))!important}.prose .code-block{position:relative;margin:1.5em 0;border:1px solid var(--code-border);border-radius:8px;overflow:hidden;background:var(--code-content-bg)}.prose .code-block pre{margin:0;border:none;border-radius:0;background:var(--code-content-bg)}.prose pre:is(.astro-code,.shiki):not([data-line-numbers=off]){counter-reset:line;--ln-width: 2.5ch;--ln-gap: 3ch;--code-pad-x: 16px}.prose pre:is(.astro-code,.shiki):has(.line):not([data-line-numbers=off]){padding-left:0}.prose pre:is(.astro-code,.shiki):not([data-line-numbers=off]) .line{display:inline-block;width:100%;vertical-align:top;position:relative;padding-left:var(--code-pad-x)}.prose pre:is(.astro-code,.shiki):not([data-line-numbers=off]) .line:before{counter-increment:line;content:counter(line);position:static;display:inline-block;width:var(--ln-width);min-width:var(--ln-width);text-align:right;margin-right:var(--ln-gap);box-sizing:border-box;line-height:inherit;color:var(--muted);opacity:.7;font-size:.85em;font-variant-numeric:tabular-nums;user-select:none;pointer-events:none}.prose pre:is(.astro-code,.shiki)[data-line-numbers=off] .line:before{content:none}.prose pre:is(.astro-code,.shiki)[data-line-numbers=off] .line{padding-left:0}@supports (color: color-mix(in oklab,black,white)){.prose pre:is(.astro-code,.shiki):not([data-line-numbers=off]) .line:before{color:color-mix(in oklab,var(--muted) 70%,var(--code-content-bg));opacity:1}}.code-block .code-toolbar{display:flex;align-items:center;justify-content:space-between;padding:0 16px;height:38px;background:var(--code-header-bg);border-bottom:1px solid var(--code-border);font-family:var(--font-mono);font-size:13px;color:var(--muted)}.code-block .code-lang{display:inline-flex;align-items:center;gap:8px;font-weight:600;text-transform:uppercase;letter-spacing:.02em;color:var(--code-text)}.code-block .code-meta{display:flex;align-items:center;gap:8px}.code-block .code-info{color:var(--faint)}.code-block .code-separator{color:var(--faint);user-select:none}.code-block .code-copy{width:24px;height:24px;padding:0;border:none;border-radius:4px;background:transparent;color:var(--muted);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:color .2s ease,background-color .2s ease}.code-block .code-copy:disabled{cursor:default;opacity:.6}.code-block .code-copy:hover:not(:disabled){color:var(--text);background:var(--code-action-hover-bg)}.code-block .code-copy:focus-visible{outline:2px solid currentColor;outline-offset:2px}.code-block .code-copy svg{width:14px;height:14px;display:block}.code-block .code-copy .icon-check,.code-block .code-copy[data-state=copied] .icon-copy{display:none}.code-block .code-copy[data-state=copied] .icon-check{display:block}.code-block .code-lang-icon{width:16px;height:16px;flex:0 0 auto;display:inline-block;color:var(--muted);opacity:.8;transition:color .2s ease,opacity .2s ease,filter .2s ease}.code-block .code-lang-icon.is-colored{color:inherit;filter:grayscale(100%);opacity:.65}.code-block .code-toolbar:hover .code-lang-icon:not(.is-colored){color:var(--code-text);opacity:1}.code-block .code-toolbar:hover .code-lang-icon.is-colored{filter:grayscale(0%);opacity:1}@media(prefers-reduced-motion:reduce){.code-block .code-lang-icon{transition:none}}.prose{font-size:15px;color:var(--text)}.prose img{max-width:75%;height:auto;display:block;margin:0 auto}.prose h1{font-size:26px;margin:0 0 12px}.prose h2{font-size:18px;margin:42px 0 12px}.prose h3{font-size:16px;margin:28px 0 10px}.prose p{margin:12px 0}.prose blockquote{margin:1.2rem 0;padding:.75rem 1rem;& p{margin:0}background-color:var(--code-content-bg);border-left:3px solid var(--border);color:var(--muted);font-size:.95em}.prose blockquote.pullquote{position:relative;border-left:0;border-right:0;overflow:visible;background-color:var(--code-content-bg);color:var(--text);font-size:1.1em;font-weight:500;font-style:normal;padding:1rem 1.6rem .5rem 1.8rem;box-shadow:0 1px 2px var(--border)}@supports (background: color-mix(in oklab,black,white)){.prose blockquote.pullquote{background-color:color-mix(in oklab,var(--code-content-bg) 88%,var(--border));box-shadow:0 2px 6px color-mix(in oklab,var(--border) 70%,transparent)}}.prose blockquote.pullquote:before{content:"“";position:absolute;left:0;top:-1.1rem;font-family:Georgia,Times New Roman,"Noto Serif SC",serif;font-size:6.6rem;line-height:1;color:var(--border);opacity:.35;pointer-events:none;z-index:0;transform:translate(-.6rem)}.prose blockquote.pullquote>*{position:relative;z-index:1}.prose blockquote.pullquote cite{display:block;margin-top:.1rem;font-size:.9em;font-style:normal;color:var(--muted);text-align:right}.prose code{font-size:.9em;background:var(--code-content-bg);padding:2px 6px;border-radius:4px;border:1px solid var(--code-border);-webkit-box-decoration-break:clone;box-decoration-break:clone}.prose pre{overflow-x:auto;overflow-y:hidden;padding:14px 16px;border-radius:10px;border:1px solid var(--border);background:var(--code-content-bg)}.prose pre code{font-size:.92em;background:transparent;padding:0;border:none}.prose ul.gallery{margin:1.2rem 0;padding:0;list-style:none;display:grid;gap:12px;grid-template-columns:repeat(1,minmax(0,1fr))}@media(min-width:900px){.prose ul.gallery{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(min-width:1200px){.prose ul.gallery.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.prose ul.gallery.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}}.prose ul.gallery>li{margin:0}.prose ul.gallery figure{margin:0}.prose ul.gallery figcaption{line-height:1.4}.prose ul,.prose ol{padding-left:22px}.prose li{margin:6px 0}.prose a{border-bottom-color:currentColor}@font-face{font-family:LXGW WenKai;src:url(/fonts/LXGWWenKaiLite-Regular.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}:root{color-scheme:light;--bg: #fffefc;--text: #292524;--muted: #57534e;--faint: #a8a29e;--border: #e7e5e4;--accent: #b91c1c;--code-header-bg: #f2f2f0;--code-content-bg: #fcfcfb;--code-border: #e6e6e4;--code-text: #333333;--code-bg: var(--code-content-bg);--code-action-hover-bg: #e8e8e6;--panel: var(--code-header-bg);--font-mono: "Sarasa Mono SC", "Noto Sans Mono CJK SC", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--max: 900px;--sidebar: 320px}:root[data-theme=dark]{color-scheme:dark;--bg: #1a1a1a;--text: #e5e5e5;--muted: #a3a3a3;--faint: #737373;--border: #333333;--accent: #f87171;--code-header-bg: #2a2a2a;--code-content-bg: #222222;--code-border: #333333;--code-text: #e1e1e1;--code-bg: var(--code-content-bg);--code-action-hover-bg: #3a3a3a}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:"Noto Serif SC",ui-serif,Georgia,Times New Roman,Songti SC,serif;line-height:1.75;font-size:16px}time,.page-meta,.list-item__meta,.archive-date,.bit-meta,.meta-line{font-family:LXGW WenKai,Kaiti SC,STKaiti,serif}.page-subtitle,.intro,.narration,.aside,.note,.prose blockquote,.prose blockquote p,cite,q{font-family:LXGW WenKai,Kaiti SC,STKaiti,serif}pre,code,kbd,samp{font-family:var(--font-mono)}img{max-width:100%;height:auto}a{color:var(--text);text-decoration:none;border-bottom:1px solid transparent}a:hover{border-bottom-color:currentColor}hr{border:0;border-top:1px solid var(--border);margin:28px 0}.shell{min-height:100vh;display:grid;grid-template-columns:var(--sidebar) 1px 1fr;max-width:1100px;margin:0 auto}.divider{background:var(--border);margin:50px 0}.sidebar{padding:55px 24px;display:flex;flex-direction:column;align-items:flex-end;gap:24px;position:sticky;top:0;height:100vh}.sidebar__title{font-family:Georgia,serif;font-size:28px;letter-spacing:.5px;transition:transform .2s ease}.sidebar__title:hover{transform:scale(1.05);border-bottom-color:transparent}.sidebar__quote{max-width:220px;text-align:right;font-family:Georgia,serif;font-style:italic;font-size:16px;color:var(--muted)}.nav{list-style:none;padding:0;margin:12px 0 0;width:100%;display:flex;flex-direction:column;gap:6px}.nav a{display:flex;align-items:center;justify-content:flex-end;gap:10px;padding:2px 0;font-size:16px;transform-origin:right center;transition:transform .2s ease}.nav a:hover{transform:scale(1.05);border-bottom-color:transparent}.nav a[aria-current=page]{text-decoration:underline;text-underline-offset:5px}.nav .dot{width:4px;height:4px;border-radius:999px;background:var(--text);opacity:.55}.content{padding:56px 48px;min-height:100vh;min-height:100dvh;display:flex}.content__inner{max-width:var(--max);display:flex;flex-direction:column;flex:1}.site-footer{padding:40px 0 10px;text-align:center;font-size:12px;color:var(--faint);margin-top:auto}.page-title{font-size:26px;margin:0}.page-header{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}.page-header .page-title{margin:0}.page-header .page-actions{margin-left:auto;display:inline-flex;align-items:center;gap:8px;align-self:baseline}.page-header .icon-link{width:30px;height:30px;border-radius:8px;background:transparent;color:var(--muted);border-bottom:0;display:inline-flex;align-items:center;justify-content:center;transition:color .2s ease,background .2s ease}.page-header .icon-link:hover{color:var(--text);background:var(--panel);border-bottom:0}.page-header .icon-link:focus-visible{outline:2px solid currentColor;outline-offset:2px}.page-header .icon-link .icon{width:16px;height:16px;display:block}.page-header.page-header--about{align-items:flex-end}.page-header.page-header--about .page-actions{align-self:flex-end;margin-right:18px}.page-header.page-header--about .icon-link .icon{width:18px;height:18px}.page-header.page-header--essay{padding-left:14px}.page-header .page-subtitle{margin:0;color:var(--muted);font-size:14px;font-weight:400}.page-header .page-subtitle a{color:var(--accent)}.page-subtitle{margin:6px 0 0;color:var(--muted);font-size:13px}.page-meta{margin-top:8px;color:var(--faint);font-size:13px}.page-meta a{color:var(--accent);border-bottom-color:transparent}.page-meta a:hover{border-bottom-color:var(--accent)}.hero{width:100%;border-radius:6px;overflow:hidden;border:1px solid var(--border)}.hero img{display:block;width:100%;height:260px;object-fit:cover}.intro{margin:28px 0 32px;color:var(--text);font-size:16px;letter-spacing:.02em}.intro__lead{display:block;font-size:15px}.intro__more{display:block;margin-top:10px}.intro--serif{font-family:"Noto Serif SC",ui-serif,Georgia,Times New Roman,Songti SC,serif}.intro--serif a{font-family:LXGW WenKai,Kaiti SC,STKaiti,serif}.section-title{font-size:20px;margin:52px 0 2px;position:relative}.section-title--index{margin-left:14px;margin-top:4px}.section-title:after{content:"";display:block;width:32px;height:1px;background:var(--border);margin-top:6px}.list{display:flex;flex-direction:column;gap:0;margin-top:16px}.list-item{padding:18px 0}.list-item--link{display:block;color:inherit;text-decoration:none;border-radius:14px;padding:12px 14px}.list-item--link:hover,.list-item--link:focus-visible{background:var(--code-header-bg);border-bottom-color:transparent;outline:2px solid transparent}.list-item--link:focus-visible{outline-color:var(--accent);outline-offset:2px}.list-item__row{display:flex;align-items:baseline;justify-content:space-between;gap:16px}.list-item__title{margin:0;font-size:18px;font-weight:600;transition:color .2s ease}.list-item__title:hover{color:#b88f8f}.list-item__meta{white-space:nowrap;color:var(--faint);font-size:12px}.list-item__excerpt{margin:10px 0 0;color:#666;font-size:15px;line-height:1.6;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;line-clamp:3;overflow:hidden;font-family:LXGW WenKai,Kaiti SC,STKaiti,serif}.badge{display:inline-flex;align-items:center;padding:0 7px;border:1px solid var(--border);border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.6px;color:var(--muted);background:#fafafa;position:relative;top:1px}:root[data-theme=dark] .badge{background:#1f1f1f;border-color:#3f3f3f;color:var(--muted)}.archive-year{margin:28px 0 6px;font-size:20px}.archive-list{display:flex;flex-direction:column;gap:14px;padding:0 0 10px}.archive-row{display:grid;grid-template-columns:56px 1fr auto;gap:14px;align-items:baseline;font-size:15px}.archive-date{color:var(--faint);font-variant-numeric:tabular-nums}.archive-tag{color:var(--faint);font-size:13px}.focus-list{list-style:none;padding:0;margin:10px 0 30px;display:grid;gap:8px}.focus-list li{display:flex;align-items:baseline;gap:8px;font-size:14px;color:var(--muted)}.focus-list li:before{content:"•";color:var(--faint)}.tech-stack{margin-top:12px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 28px}.tech-group-title{font-size:12px;color:var(--faint);letter-spacing:.6px}.tech-list{list-style:none;padding:0;margin:8px 0 0;display:grid;gap:10px}.tech-item{display:grid;gap:4px}.tech-item-head{display:inline-flex;align-items:baseline;gap:8px}.tech-item-title{font-size:15px;font-weight:600}.tech-item-desc{font-size:13px;color:var(--muted)}.site-guide{margin-top:12px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 40px}.site-guide-item{padding:14px 16px;border:1px solid var(--border);border-radius:12px;background:var(--panel);transition:background .2s ease,border-color .2s ease}.site-guide-item:hover{background:#f7f7f5;border-color:#e0dedc}:root[data-theme=dark] .site-guide-item:hover{background:#2f2f2f;border-color:#3b3b3b}.site-guide-head{display:inline-flex;align-items:baseline;gap:8px}.site-guide-link{font-size:12px;color:var(--faint);font-family:var(--font-mono)}.site-guide-title{margin:0;font-size:16px;font-weight:600}.site-guide-desc{margin:6px 0 0;font-size:13px;color:var(--muted)}.bits-toolbar{display:flex;flex-direction:column;align-items:flex-end;justify-content:flex-end;gap:8px;padding-bottom:12px;margin:35px 0}.bits-controls{display:flex;align-items:center;gap:8px}.bits-controls input{width:220px;padding:7px 10px;border:1px solid var(--border);border-radius:6px;font-size:13px;outline:none}.bits-controls button{padding:7px 10px;border-radius:6px;border:1px solid var(--border);background:#fff;font-size:13px;cursor:pointer}:root[data-theme=dark] .bits-controls button{background:#222;border-color:#4b4b4b;color:#f0f0f0}.bits-controls .new{border-color:#111;background:#111;color:#fff}.bits-status{min-height:16px;font-size:12px;color:var(--muted)}.bit-card{padding:18px 18px 14px;border:1px solid var(--border);border-radius:10px;margin:16px 0}.bit-author{display:flex;align-items:center;gap:10px;margin-bottom:10px}.avatar{width:28px;height:28px;border-radius:999px;background:#111;color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:12px}.bit-author .name{font-size:13px;color:var(--muted)}.bit-body{font-size:14px}.bit-media{margin:12px 0;border-radius:8px;overflow:hidden;border:1px solid var(--border);max-width:320px}.bit-meta{display:flex;justify-content:space-between;align-items:baseline;gap:16px;margin-top:10px;font-size:12px;color:var(--faint)}.bit-tags{color:#d34}.kids-toc{margin:18px 0 46px}.kids-toc details{margin:20px 0}.kids-toc summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:8px;color:var(--text);font-size:15px}.kids-toc summary::-webkit-details-marker{display:none}.kids-toc summary:after{content:"▶";font-size:10px;color:var(--muted);transition:transform .2s ease;margin-left:4px}.kids-toc details[open] summary:after{transform:rotate(90deg)}.kids-toc summary:before{content:"";width:4px;height:4px;border-radius:999px;background:var(--text);opacity:.55}.kids-toc .toc-items{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;padding:12px 0 0 18px;margin:0;list-style:none}.kids-toc .toc-items a{display:inline-flex;gap:8px;align-items:center;color:var(--muted);font-size:13px;border-bottom:none}.toc-num{width:18px;height:18px;border-radius:999px;border:1px solid var(--border);display:inline-flex;align-items:center;justify-content:center;color:var(--muted);font-variant-numeric:tabular-nums}:root[data-theme=dark] .toc-num{background:#242424;border-color:#3a3a3a;color:var(--muted)}.kids-content{counter-reset:kidItem}.kids-content h2{text-align:center;font-size:16px;font-weight:600;margin:56px 0 18px;color:var(--muted)}.kids-content h2:before,.kids-content h2:after{content:"-";margin:0 10px;color:var(--border)}.kids-content h3{counter-increment:kidItem;margin:28px 0 10px;font-size:16px;position:relative;padding-left:38px}.kids-content h3:before{content:counter(kidItem);position:absolute;left:0;top:2px;width:24px;height:24px;border-radius:999px;background:#f7f7f7;border:1px solid var(--border);display:inline-flex;align-items:center;justify-content:center;font-size:12px;color:var(--muted)}:root[data-theme=dark] .kids-content h3:before{background:#242424;border-color:#3a3a3a;color:var(--muted)}.kids-content h2{counter-reset:kidItem}@media(max-width:900px){:root{color-scheme:light;--sidebar: 1fr}:root[data-theme=dark]{color-scheme:dark;--bg: #1a1a1a;--text: #e5e5e5;--muted: #a3a3a3;--faint: #737373;--border: #333333;--accent: #f87171;--code-content-bg: #222222}.shell{grid-template-columns:1fr}.divider{display:none}.sidebar{position:static;height:auto;padding:32px 20px}.content{padding:24px 20px 48px}.bits-controls input{width:160px}.site-guide{grid-template-columns:1fr;gap:16px}.tech-stack{grid-template-columns:1fr}}.meta-line{margin-top:10px;margin-bottom:24px;font-size:13px;color:var(--faint)}.list-item .meta-line{margin-top:12px;margin-bottom:8px;padding-top:0}.meta-line .tag{color:var(--accent)}.sidebar-actions{margin-top:auto;display:inline-flex;gap:10px;align-items:center;align-self:flex-end}.icon-button{width:34px;height:34px;padding:0;border:0;border-radius:999px;background:transparent;color:var(--muted);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;font-family:inherit;transition:color .2s ease}.icon-button[aria-disabled=true],.icon-button:disabled{opacity:.6;cursor:not-allowed}.icon-button[aria-disabled=true] .icon,.icon-button:disabled .icon{transform:none}.sidebar-actions .icon-button[title]{position:relative}.sidebar-actions .icon-button[title]:after{content:attr(title);position:absolute;left:50%;bottom:calc(100% + 8px);transform:translate(-50%,4px);padding:6px 10px;border-radius:8px;background:var(--panel);color:var(--text);border:1px solid var(--border);font-family:LXGW WenKai,Kaiti SC,STKaiti,serif;font-size:12px;line-height:1;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .15s ease,transform .15s ease;z-index:5}.sidebar-actions .icon-button[title]:before{content:"";position:absolute;left:50%;bottom:100%;transform:translate(-50%,2px);border:6px solid transparent;border-top-color:var(--panel);opacity:0;pointer-events:none;transition:opacity .15s ease,transform .15s ease;z-index:4}.sidebar-actions .icon-button[title]:hover:after,.sidebar-actions .icon-button[title]:focus-visible:after,.sidebar-actions .icon-button[title]:hover:before,.sidebar-actions .icon-button[title]:focus-visible:before{opacity:1;transform:translate(-50%)}.icon-button:hover{color:var(--text)}.icon-button:hover .icon{transform:scale(1.06)}.theme-toggle{align-self:center}.theme-toggle:hover .icon{transform:rotate(20deg)}.theme-toggle:active .icon{transform:rotate(90deg)}.icon-button:focus-visible{outline:2px solid currentColor;outline-offset:2px}.icon-button .icon{width:18px;height:18px;display:block;transition:transform .25s ease}.theme-toggle .icon-sun{display:none}:root[data-theme=dark] .theme-toggle .icon-sun{display:block}:root[data-theme=dark] .theme-toggle .icon-moon{display:none}.reader-toggle .icon-book-closed{display:none}body[data-reading=immersive] .reader-toggle .icon-book-closed{display:block}body[data-reading=immersive] .reader-toggle .icon-book-open{display:none}@media(hover:none){.icon-button:hover{color:var(--muted);transform:none}.sidebar-actions .icon-button[title]:before,.sidebar-actions .icon-button[title]:after{display:none}}.reader-exit-anchor{position:relative;padding-right:44px}.reader-exit{position:absolute;right:0;top:2px;opacity:0;pointer-events:none;width:38px;height:38px}.reader-exit .icon{width:20px;height:20px}@media(max-width:900px){.reader-exit-anchor{padding-right:44px}}body.immersive-page[data-reading=immersive] .reader-exit{opacity:1;pointer-events:auto}body.immersive-page[data-reading=immersive] .sidebar,body.immersive-page[data-reading=immersive] .divider,body.immersive-page[data-reading=immersive] .site-footer{display:none}body.immersive-page[data-reading=immersive] .shell{grid-template-columns:1fr;max-width:960px}body.immersive-page[data-reading=immersive] .content{padding:64px 40px}body.immersive-page[data-reading=immersive] .content__inner{max-width:860px;margin:0 auto}body.immersive-page[data-reading=immersive] .prose{font-size:17px;line-height:1.9}body.immersive-page[data-reading=immersive] .prose p{margin:16px 0}body.kids-page[data-reading=immersive] .prose{font-size:16px;line-height:1.85}body.kids-page[data-reading=immersive] .prose p{margin:14px 0}