@layer chaos.reset,chaos.tokens,chaos.base,chaos.syntax,chaos.components;@font-face{font-family:noto sans mono;src:url(/_3p/noto-sans-mono/2.014/noto-sans-mono-latin.woff2)format("woff2");font-weight:400 700;font-style:normal;font-display:swap;unicode-range:U+??,U+2010-2015,U+2018-201F,U+2026,U+2030,U+2032-2033,U+20AC,U+2190-2193,U+2212,U+2260,U+2264-2265}@layer chaos.tokens{:root{color-scheme:light;--bg:#FBFAF5;--surface:#FFFFFF;--text:#2B2B2B;--heading:#16160E;--muted:#595857;--primary:#9E3D3F;--primary-hover:#6C2C2F;--primary-fg:#FFFFFF;--accent:#165E83;--paper:#EDE4CD;--link:var(--accent);--link-hover:#223A70;--table-stripe:var(--ground);--blockquote-fg:var(--text);--table-head-bg:var(--text);--table-head-fg:var(--bg);--ground:#F5F2EB;--blockquote-bg:var(--ground);--border-color:rgba(0,0,0,0.1);--border:1px solid var(--border-color);--code-bg:#F0F0F0;--mark-bg:rgba(248, 181, 0, 0.25);--alert-note-bg:#EAF4FC;--alert-note-border:var(--accent);--alert-tip-bg:#EBF5ED;--alert-tip-border:#316745;--alert-important-bg:#FDF0E5;--alert-important-border:#954E2A;--alert-warning-bg:#FDEFF2;--alert-warning-border:var(--primary);--alert-caution-bg:#F4F1FC;--alert-caution-border:#674196;--syntax-text:var(--text);--syntax-comment:var(--muted);--syntax-keyword:#A73836;--syntax-string:#192F60;--syntax-constant:#1E50A2;--syntax-function:#674196;--syntax-variable:#783C1D;--syntax-tag:#316745;--syntax-line-hl:rgba(248, 181, 0, 0.25);--syntax-inserted-bg:var(--alert-tip-bg);--syntax-deleted-bg:var(--alert-warning-bg);--max-width:1280px;--content-width:780px;--gutter:24px;--nav-height:80px;--radius-card:8px;--radius:var(--radius-card);--radius-sm:4px;--radius-md:6px;--radius-lg:8px;--font-size-base:16px;--line-height:1.7;--h1-size:28px;--h2-size:22px;--h3-size:18px;--text-2xs:11px;--text-xs:12px;--text-sm:13px;--text-md:14px;--text-lg:15px;--small-size:var(--text-md);--font-mono:"Noto Sans Mono", ui-monospace, SFMono-Regular, Menlo, Consolas,
                 "Liberation Mono", monospace;--transition-fast:0.2s ease;--transition-normal:0.3s ease;--z-nav:40;--z-overlay:50;--z-modal:60;--z-top:100;--focus-outline:2px solid var(--link);--focus-offset:3px;--shadow-dialog:0 16px 36px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.04)}@media screen{html.dark{color-scheme:dark;--bg:#1F1E1D;--surface:#252422;--text:#DCDDDD;--heading:#F3F3F2;--muted:#A3A3A2;--primary:#D69090;--primary-hover:#D4ACAD;--primary-fg:#1F1E1D;--accent:#84B9CB;--paper:#2B2925;--link:var(--accent);--link-hover:#ABCED8;--ground:#282623;--table-head-bg:#34322D;--table-head-fg:var(--heading);--border-color:rgba(255,255,255,0.1);--border:1px solid var(--border-color);--code-bg:#262626;--mark-bg:rgba(248, 181, 0, 0.16);--shadow-dialog:0 16px 36px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.08);--alert-note-bg:#1F2730;--alert-note-border:var(--accent);--alert-tip-bg:#1F2823;--alert-tip-border:#93B69C;--alert-important-bg:#2C251C;--alert-important-border:#D8A373;--alert-warning-bg:#302326;--alert-warning-border:var(--primary);--alert-caution-bg:#2A2430;--alert-caution-border:#A59ACA;--syntax-keyword:#F2A0A1;--syntax-string:#A0D8EF;--syntax-constant:#89C3EB;--syntax-function:#C0A2C7;--syntax-variable:#F7B977;--syntax-tag:#A8C97F;--syntax-line-hl:rgba(248, 181, 0, 0.12)}}@media(max-width:768px){:root{--max-width:100%;--gutter:16px;--h1-size:24px;--h2-size:20px;--h3-size:17px}}}@layer chaos.reset{*,*::before,*::after{box-sizing:border-box}*{margin:0;padding:0}html{-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%}body{min-height:100vh;line-height:1.5}img,picture,video,canvas,svg{display:block;max-width:100%;height:auto}input,button,textarea,select{font:inherit}button{background:0 0;border:none;cursor:pointer}p,h1,h2,h3,h4,h5,h6{overflow-wrap:break-word}table{border-collapse:collapse;border-spacing:0}}@layer chaos.base{html{height:100%;scroll-behavior:smooth;scrollbar-gutter:stable;@media(prefers-reduced-motion:reduce){scroll-behavior: auto;}}body{height:100%;font-family:noto sans sc,-apple-system,BlinkMacSystemFont,segoe ui,Roboto,pingfang sc,hiragino sans gb,microsoft yahei,wenquanyi micro hei,sans-serif;background:var(--bg);color:var(--text);font-size:var(--font-size-base);line-height:var(--line-height);-moz-osx-font-smoothing:grayscale;-webkit-font-smoothing:antialiased;text-autospace:normal;hanging-punctuation:first allow-end last;word-break:normal;overflow-wrap:break-word}h1,h2,h3,h4,h5,h6{color:var(--heading);font-weight:700;line-height:1.35;text-wrap:balance}h1{font-size:var(--h1-size);margin:.6em 0 .4em;font-weight:700;letter-spacing:-.01em}h2{font-size:var(--h2-size);margin:2em 0 .5em}h3{font-size:var(--h3-size);margin:1.7em 0 .4em}h4,h5,h6{font-size:var(--font-size-base);margin:1.5em 0 .4em}p{margin:0 0 1.15em;orphans:2;widows:2}a{color:var(--link);text-decoration:none;border-bottom:1px dotted var(--link);transition:border-color var(--transition-fast),color var(--transition-fast),background var(--transition-fast);&:hover{color:var(--link-hover);border-bottom-style:solid;border-bottom-color:var(--link-hover)}}a:focus-visible,button:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline:var(--focus-outline);outline-offset:var(--focus-offset)}@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}}@media(forced-colors:active){a:focus-visible,button:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline:2px solid Highlight}blockquote{border:1px solid CanvasText}}[id]{scroll-margin-top:var(--nav-height)}blockquote{margin:1.5em 0;padding:1em 1.25em;background:var(--blockquote-bg);border-radius:var(--radius-card);color:var(--blockquote-fg);font-size:.95em;> :first-child{margin-top:0}> :last-child{margin-bottom:0}ol, ul{padding-left:1.5em}}ul,ol{margin:1em 0;font-variant-numeric:tabular-nums;padding-left:0;@media(max-width:768px){padding-left: 1.4em;}&::marker{color:var(--muted)}}ul ul,ul ol,ol ul,ol ol{padding-left:1.5em;margin:.3em 0;@media(max-width:768px){padding-left: 1.2em;}}table{width:100%;margin:1em 0;font-variant-numeric:tabular-nums;th, td{border-bottom:var(--border);padding:.75rem;text-align:left;vertical-align:top}thead th{border-bottom:2px solid var(--border-color);vertical-align:bottom;background-color:var(--table-head-bg);color:var(--table-head-fg);white-space:nowrap}tbody + tbody{border-top:2px solid var(--border-color)}tbody tr:nth-of-type(even){background-color:var(--table-stripe)}}pre,code,kbd,samp{font-family:var(--font-mono)}pre{margin:1.5em 0;padding:12px;background:var(--code-bg);border-radius:0;overflow-x:auto;font-size:var(--small-size);hanging-punctuation:none}code{font-size:.9em;overflow-wrap:break-word}pre code{font-size:inherit}ruby{ruby-position:over;font-variant-east-asian:ruby}rt{font-size:.65em;line-height:1;color:var(--muted);font-weight:400;letter-spacing:.05em;padding:0 .1em}mark{background:var(--mark-bg);color:var(--heading);padding:0 3px;border-radius:var(--radius-sm)}}@layer chaos.components{.alert{font-size:var(--font-size-base);contain:layout style;.alert-heading{display:flex;align-items:center;gap:.35em;margin-bottom:.4em;font-weight:600;color:var(--alert-accent,var(--heading))}}.alert-note,.alert-historical{--alert-accent:var(--alert-note-border);background:var(--alert-note-bg)}.alert-tip{--alert-accent:var(--alert-tip-border);background:var(--alert-tip-bg)}.alert-important{--alert-accent:var(--alert-important-border);background:var(--alert-important-bg)}.alert-warning,.alert-disclaimer{--alert-accent:var(--alert-warning-border);background:var(--alert-warning-bg)}.alert-caution{--alert-accent:var(--alert-caution-border);background:var(--alert-caution-bg)}.highlight{position:relative;margin:1.5em 0;pre{margin:0}}.chroma{.lnlinks{border-bottom:none;color:inherit}.lntd{vertical-align:top;padding:0;margin:0;border:0}.lntable{border-spacing:0;padding:0;margin:0;border:0;overflow-x:auto;display:block;max-width:100%;@media(min-width:769px){margin: 0 0 0 -3em;}}.lnt, .ln{white-space:pre;-webkit-user-select:none;user-select:none;padding:0 0 0 .4em}.lntd:first-child{@media(min-width:769px){pre{background:var(--bg)}}@media(max-width:768px){display: none;}}.line{display:flex}}}@view-transition{navigation: auto;
}@media(prefers-reduced-motion:reduce){@view-transition{navigation: none;
  }}@media print{@page{size:auto;margin:20mm 15mm}}@layer chaos.components{.brand,.post-entry .post-title a,.toc-content a,nav.main-links a,.skip-link,.sidebar-tag-item,.sidebar-more-link,.sidebar-nav-jump,.sidebar-az-item,.sidebar-year-item,.tag-flat-item,.taxo-link,.archive-post-title,.archive-cat-label,.search-item-link{border-bottom:none}.sidebar-tag-item,.sidebar-nav-jump,.sidebar-az-item,.sidebar-year-item,.tag-flat-item,.toc-content a{border-radius:var(--radius-sm);transition:color var(--transition-fast),background-color var(--transition-fast)}.sidebar-tag-item:hover,.sidebar-nav-jump:hover,.sidebar-az-item:hover,.sidebar-year-item:hover,.tag-flat-item:hover,.toc-content a:hover,nav.main-links a:hover,.btn-icon:hover{color:var(--primary);background:var(--paper)}.sidebar-nav-jump.active,.sidebar-az-item.active,.sidebar-year-item.active,.toc-content a.active{color:var(--primary);font-weight:600;background:var(--paper)}.sidebar-tag-item,.tag-flat-item{display:inline-flex;align-items:center}.container{max-width:var(--max-width);margin:28px auto;padding:0 var(--gutter);&:has(.content-layout){padding:0}}.post-list{width:100%;max-width:var(--content-width);margin:0 auto}.post-entry{margin-bottom:48px;&:last-child{margin-bottom:24px}}.post-title{font-size:var(--h1-size);margin:0 0 10px;letter-spacing:-.01em;@media(max-width:768px){font-size: 22px;}}.post-entry .post-title a{color:var(--heading);transition:color var(--transition-fast);&:hover{color:var(--primary)}}.post-summary-content{margin:14px 0}.post-more{margin-top:14px}.read-more{font-weight:600}.taxo-link{display:inline-block;font-size:var(--small-size);transition:color var(--transition-fast)}.cat-link{font-weight:600;color:var(--accent);&:hover, &:focus-visible{color:var(--primary)}}.tag-link{font-weight:400;color:var(--muted);&:hover, &:focus-visible{color:var(--primary)}}.meta-sep{user-select:none}.cat-sep{margin-right:4px}.site-nav{width:100%;background:var(--bg);position:sticky;top:0;z-index:var(--z-nav);border-bottom:var(--border)}.nav-inner{max-width:var(--max-width);margin:0 auto;padding:12px var(--gutter);display:flex;align-items:center;justify-content:space-between;gap:16px;@media(max-width:1359px){padding: 10px var(--gutter);}@media(max-width:768px){padding: 8px var(--gutter); gap: 8px; position: relative;}}.brand{font-weight:700;letter-spacing:.02em;color:var(--heading);display:flex;align-items:baseline;gap:10px;min-width:0;flex-shrink:1;&:hover{color:var(--link-hover)}@media(max-width:768px){font-size: var(--font-size-base); flex: 1; min-width: 0;}.subtitle{font-size:var(--small-size);color:var(--muted);margin-left:6px;font-weight:400;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:440px;@media(max-width:960px){max-width: 220px;}@media(max-width:768px){display: none;}}}.main-title{font-size:var(--h3-size);white-space:nowrap}nav.main-links{margin-left:auto;display:flex;gap:8px;align-items:center;flex-shrink:0;@media(max-width:768px){display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; gap: 4px; padding: 16px var(--gutter); background: var(--surface); border-top: var(--border); border-bottom: var(--border); box-shadow: 0 8px 24px rgba(0,0,0,0.15); z-index: var(--z-overlay); &.menu-open{display:flex}}a{color:var(--muted);font-weight:600;white-space:nowrap;padding:8px 12px;border-radius:var(--radius-md);transition:color var(--transition-fast),background var(--transition-fast);@media(max-width:768px){padding: 12px 16px; font-size: var(--font-size-base); width: 100%;}}}.btn-icon{border:0;cursor:pointer;font-weight:600;display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;padding:8px;border-radius:var(--radius-md);font-size:18px;color:var(--heading);background:0 0;transition:background var(--transition-fast),color var(--transition-fast)}.menu-toggle{display:none;font-size:20px;line-height:1;@media(max-width:768px){display: inline-flex;}}.content-layout{display:grid;grid-template-columns:var(--content-width)280px;gap:48px;align-items:start;justify-content:center;padding:0 var(--gutter);@media(max-width:1359px){display: block; max-width: var(--content-width); margin: 0 auto; padding: 0 var(--gutter);}}article.post{grid-column:1;max-width:var(--content-width);@media(max-width:1359px){max-width: 100%;}}.content-layout article.post>:first-child{margin-top:0}.toc-wrapper{grid-column:2;position:sticky;top:var(--nav-height);align-self:start;max-width:280px;max-height:calc(100dvh - 100px);@media(max-width:1359px){position: relative; top: 0; max-height: none; grid-column: auto;}}.toc,.sidebar-card{max-height:calc(100dvh - 100px);overflow-y:auto;padding:16px;background:var(--surface);border:var(--border);border-radius:var(--radius-card);contain:layout style}.toc{@media(max-width:1359px){display: none; position: fixed; top: var(--nav-height); left: 0; right: 0; bottom: 0; max-height: calc(100dvh - var(--nav-height)); z-index: var(--z-overlay); overflow-y: auto; padding: 24px; border: 0; border-top: var(--border); border-radius: 0; &.toc-open{display:block}}}.toc-title,.sidebar-widget-title,.tags-section-heading{text-transform:uppercase;letter-spacing:.5px}.toc-title{font-size:var(--text-md);margin:0 0 12px}.toc-content{nav{font-size:var(--text-md);line-height:1.6}ul{list-style:none;padding-left:0;margin:0;ul{padding-left:16px;margin-top:4px}}li{margin:4px 0}a{color:var(--muted);display:block;padding:6px 10px}}.toc-toggle{display:none;@media(max-width:1359px){display: inline-flex; align-items: center; justify-content: center; position: fixed; bottom: 24px; right: 24px; width: 48px; height: 48px; border-radius: 50%; background: var(--primary); color: var(--primary-fg); border: none; cursor: pointer; box-shadow: 0 4px 12px rgba(0,0,0,0.3); z-index: var(--z-modal); transition: box-shadow var(--transition-normal); &:hover{box-shadow:0 6px 16px rgba(0,0,0,.4)}}.toc-icon-close{display:none}&[aria-expanded=true]{.toc-icon-open{display:none}.toc-icon-close{display:block}}}.home-sidebar{@media(max-width:1359px){display: none;}}.sidebar-card{display:flex;flex-direction:column;gap:20px}.sidebar-widget{display:flex;flex-direction:column;gap:10px}.sidebar-widget-title{font-size:var(--text-sm);margin:0;padding-bottom:6px}.sidebar-tags-cloud{display:flex;flex-wrap:wrap;gap:4px 6px}.sidebar-tag-item{font-size:var(--text-xs);color:var(--muted);padding:2px 6px}.sidebar-widget-footer{text-align:right;margin-top:4px}.sidebar-more-link{font-size:var(--text-xs);color:var(--link);font-weight:500;transition:color var(--transition-fast);&:hover{color:var(--link-hover);text-decoration:underline}}.sidebar-tag-nav{display:flex;flex-direction:column;gap:6px}.sidebar-nav-jump{display:inline-flex;align-items:center;gap:4px;font-size:var(--text-xs);font-weight:600;color:var(--muted);padding:3px 6px}.sidebar-az-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:2px;text-align:center}.sidebar-az-item{font-size:var(--text-xs);font-weight:600;color:var(--muted);padding:3px 0}.sidebar-year-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px}.sidebar-year-item{display:flex;justify-content:space-between;align-items:center;padding:4px 8px;font-size:var(--text-sm);color:var(--text);font-variant-numeric:tabular-nums}.page-title-group{margin:0 0 28px}.page-title{margin:0 0 8px}.page-subtitle{font-size:var(--font-size-base);color:var(--muted);margin:0;line-height:1.5}.tags-section,.tag-letter-group,.archive-year-section{scroll-margin-top:calc(var(--nav-height) + 16px)}.tags-section{margin-bottom:32px}.tags-section-heading{font-size:var(--text-md);margin:0 0 14px}.tags-flat-wrap{display:flex;flex-wrap:wrap;gap:6px 10px}.tag-flat-item{font-size:var(--text-sm);padding:3px 6px;color:var(--text)}.tags-az-container{display:flex;flex-direction:column;gap:20px}.tag-letter-group{display:flex;gap:16px;align-items:flex-start;padding-top:4px}.tag-letter-heading{font-size:var(--font-size-base);color:var(--primary);margin:0;width:20px;line-height:1.5;flex-shrink:0;padding-top:2px}.archive-timeline{display:flex;flex-direction:column;gap:32px}.archive-year-title{font-size:var(--h3-size);margin:0 0 12px}.archive-post-list{display:flex;flex-direction:column;gap:1px}.archive-post-row{display:flex;align-items:baseline;gap:14px;padding:5px 8px;border-radius:var(--radius-sm);transition:background-color var(--transition-fast);&:hover{background-color:var(--paper);.archive-post-title{color:var(--primary)}}}.archive-date{font-family:var(--font-mono);font-size:var(--text-sm);font-variant-numeric:tabular-nums;color:var(--muted);flex-shrink:0;width:82px;@media(max-width:600px){width: 44px;}}.archive-date-full{@media(max-width:600px){display: none;}}.archive-date-short{display:none;@media(max-width:600px){display: inline;}}.archive-post-title{font-size:var(--text-md);color:var(--text);flex:1;line-height:1.45;transition:color var(--transition-fast)}.archive-cat-label{font-size:var(--text-xs);color:var(--muted);flex-shrink:0;transition:color var(--transition-fast);&:hover{color:var(--primary)}}footer.site-foot{max-width:var(--max-width);margin:40px auto 80px;padding:24px var(--gutter);color:var(--muted);font-size:var(--text-sm);text-align:center}article.post{text-align:start;text-wrap:pretty;text-spacing-trim:normal;text-spacing:auto-spaces normal;font-feature-settings:"chws" 1;line-break:strict;-webkit-hyphens:auto;hyphens:auto}.meta{color:var(--muted);font-size:var(--small-size);margin-bottom:8px;line-height:1.6}.post-footer{margin:4em 0 1.5em;display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:12px 24px;font-size:var(--small-size);color:var(--muted);@media(max-width:768px){flex-direction: column; align-items: stretch; gap: 8px;}.post-tags{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;flex:1 1 300px;@media(max-width:768px){flex: 0 1 auto;}}.post-modified{white-space:nowrap;flex-shrink:0;margin-left:auto;@media(max-width:768px){margin-left: 0;}}}.x-card{margin:1.5em auto;max-width:550px;width:100%;background:var(--surface);border:var(--border);border-radius:var(--radius-card);overflow:hidden;contain:layout style;@media(max-width:768px){margin: 1.5em 0; max-width: 100%;}}.x-card-header{display:flex;align-items:center;padding:8px 1.25em;background:var(--table-stripe);font-size:var(--small-size);@media(max-width:768px){padding: 8px 1em;}}.x-card-source{display:inline-flex;align-items:center;gap:8px;color:var(--heading);font-weight:600;font-size:var(--text-sm);letter-spacing:.2px;@media(max-width:768px){font-size: var(--text-xs); gap: 6px;}.x-logo{flex-shrink:0;width:15px;height:15px;@media(max-width:768px){width: 14px; height: 14px;}}}.x-card-body{padding:1em 1.25em;@media(max-width:768px){padding: 0.9em 1em;}}.x-card blockquote.twitter-tweet,article.post blockquote.twitter-tweet:not(.x-card blockquote){font-size:var(--text-sm);font-style:normal;line-height:1.5;color:var(--muted);text-align:right}.x-card blockquote.twitter-tweet{margin:0;padding:0;background:0 0;border:none}article.post blockquote.twitter-tweet:not(.x-card blockquote){margin:1.5em auto;max-width:550px;padding:1em 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