:root{color-scheme:light;--content-max:890px;--nav-max:1000px;--page-gutter-desktop:28px;--page-gutter-mobile:16px;--nav-height:48px;--font-mono:"Sarasa Mono SC", "Maple Mono SC", "Cascadia Mono", "JetBrains Mono", "SFMono-Regular", "Menlo", "Consolas", "Liberation Mono", "Microsoft YaHei UI", "PingFang SC", "Noto Sans SC", monospace;--font-page-title:2rem;--font-article-title:1.875rem;--font-h2:1.3125rem;--font-h3:1.0625rem;--font-body:1rem;--font-intro:.9375rem;--font-list:.9375rem;--font-nav:.875rem;--font-meta:.8125rem;--font-caption:.8125rem;--font-code:.875rem;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.5rem;--space-6:2rem;--space-7:3rem;--space-8:4rem;--background:#fcfcfa;--text:#1f1f1f;--muted:#6b6b6b;--subtle:#8b8b8b;--rule-color:#dfdfda;--link:#064fb0;--link-hover:#003b86;--code-background:#f4f4f1;--inline-code-background:#eeeeea;--quote-rule:#9c9c96}:root[data-theme=dark]{color-scheme:dark;--background:#151515;--text:#e7e5df;--muted:#aaa7a0;--subtle:#85827c;--rule-color:#323232;--link:#86bfff;--link-hover:#afd7ff;--code-background:#1d1d1d;--inline-code-background:#252525;--quote-rule:#77756f}@media (width<=640px){:root{--font-page-title:1.625rem;--font-article-title:1.5625rem;--font-h2:1.25rem;--font-h3:1.0625rem;--font-code:.8125rem}}html{background:var(--background);color:var(--text);text-size-adjust:100%}body{background:var(--background);min-width:0;min-height:100vh;color:var(--text);font-family:var(--font-mono);font-size:var(--font-body);margin:0;font-weight:400;line-height:1.9}:where(button,input,select,textarea){font:inherit}:where(h1,h2,h3,h4,p,ul,ol,figure,blockquote,pre,table,hr){margin-top:0}h1,h2,h3{color:var(--text);font-family:var(--font-mono);letter-spacing:0;font-weight:600}h1{margin-bottom:var(--space-3);font-size:var(--font-page-title);line-height:1.3}h2{margin-top:2.75rem;margin-bottom:var(--space-2);font-size:var(--font-h2);line-height:1.45}h3{margin-top:2rem;margin-bottom:var(--space-2);font-size:var(--font-h3);line-height:1.55}p{margin-bottom:1.2em}a{color:var(--link);text-underline-offset:.18em;text-decoration:none}a:hover,a:focus-visible{color:var(--link-hover);text-decoration-line:underline}strong,b{font-weight:600}em,i{font-style:italic}u{text-underline-offset:.2em;text-decoration-line:underline;text-decoration-style:solid;text-decoration-thickness:1px}s,del{text-decoration-thickness:1px}:focus-visible{outline:2px solid var(--link);outline-offset:3px}.page-intro,.tagline,.empty-state{color:var(--muted);font-size:var(--font-intro);line-height:1.8}.writing-meta,.article-meta,.meta-muted{color:var(--muted);font-size:var(--font-meta);font-variant-numeric:tabular-nums;line-height:1.55}.article-prose{font-size:var(--font-body);overflow-wrap:anywhere;line-height:1.9}.article-prose>h2:first-child,.article-prose>h3:first-child{margin-top:0}.article-prose p{text-align:justify;text-align-last:left;text-justify:inter-ideograph;margin-bottom:1.2em}.article-prose :is(h2,h3,h4,ul,ol,li,pre,code,table,blockquote,figure,figcaption,hr){text-align:left}.article-prose h2{margin-top:2.75rem;margin-bottom:.8rem}.article-prose h3{margin-top:2rem;margin-bottom:.65rem}.article-prose ul,.article-prose ol{margin-bottom:1.25em;padding-left:1.45em}.article-prose li{margin:.28rem 0;line-height:1.75}.article-prose :not(pre)>code{background:var(--inline-code-background);color:inherit;font-family:var(--font-mono);border-radius:0;padding:.08em .28em;font-size:.92em}.article-prose pre{border:1px solid var(--rule-color);background:var(--code-background);font-family:var(--font-mono);font-size:var(--font-code);border-radius:0;margin:1.4rem 0;padding:1rem 1.1rem;line-height:1.7;position:relative;overflow-x:auto}.article-prose pre code{font-family:inherit;font-size:inherit;background:0 0}.article-prose blockquote{border-left:2px solid var(--quote-rule);color:var(--muted);margin:1.4rem 0;padding:.15rem 0 .15rem 1rem}.article-prose blockquote p:last-child{margin-bottom:0}.article-prose table{border-collapse:collapse;width:100%;margin:1.4rem 0;font-size:.9rem;line-height:1.6;display:block;overflow-x:auto}.article-prose th,.article-prose td{border:0;border-bottom:1px solid var(--rule-color);text-align:left;vertical-align:top;white-space:nowrap;padding:.5rem .65rem}.article-prose th{border-bottom-color:var(--text);font-weight:600}.article-prose figure{margin:1.6rem 0}.article-prose img{border-radius:0;max-width:100%;height:auto;display:block}.article-prose figure img[src$=\.png],.article-prose figure img[src$=\.jpg],.article-prose figure img[src$=\.jpeg],.article-prose figure img[src$=\.webp]{border:1px solid var(--rule-color)}.article-prose figcaption{color:var(--muted);font-size:var(--font-caption);margin-top:.55rem;line-height:1.6}.article-prose hr,.rule{border:0;border-top:1px solid var(--rule-color);margin:2rem 0}*{box-sizing:border-box}body,button,input,textarea,select{font-family:var(--font-mono)}.content-shell{width:min(calc(100% - 2 * var(--page-gutter-desktop)), var(--content-max));margin-inline:auto}.nav-shell{width:min(calc(100% - 2 * var(--page-gutter-desktop)), var(--nav-max));min-height:var(--nav-height);align-items:center;gap:1.5rem;margin-inline:auto;display:flex}.site-header{border-bottom:1px solid var(--rule-color)}.site-brand{color:var(--text);white-space:nowrap;flex:none;font-size:.9375rem;font-weight:600;line-height:1;text-decoration:none}.site-brand:hover,.site-brand:focus-visible{color:var(--text)}.site-nav{overscroll-behavior-inline:contain;scrollbar-width:none;white-space:nowrap;flex:auto;gap:1.15rem;min-width:0;display:flex;overflow-x:auto}.site-nav::-webkit-scrollbar{display:none}.site-nav a{color:var(--text);font-size:var(--font-nav);line-height:var(--nav-height);flex:none;text-decoration:none}.site-nav a[aria-current=page]{font-weight:600}.site-nav a:hover,.site-nav a:focus-visible{color:var(--link);text-decoration:none}.nav-actions{background:var(--background);flex:none;gap:.125rem;display:flex}.icon-button{width:2.25rem;height:2.25rem;color:var(--text);cursor:pointer;background:0 0;border:0;border-radius:0;place-items:center;padding:0;display:inline-grid}.icon-button:hover,.icon-button:focus-visible{background:var(--code-background);color:var(--text)}.icon-button svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8px;width:1.125rem}.moon,:root[data-theme=dark] .sun{display:none}:root[data-theme=dark] .moon{display:block}main.content-shell{min-height:calc(100vh - 118px);padding-block:2.5rem 4rem}.site-footer{border-top:1px solid var(--rule-color);color:var(--muted);font-size:var(--font-meta)}.footer-inner{justify-content:space-between;align-items:center;gap:1rem;min-height:4.4rem;display:flex}.footer-inner nav{flex-wrap:wrap;gap:.75rem;display:flex}.section-heading{justify-content:space-between;align-items:baseline;gap:1rem;display:flex}.section-heading h2{margin-bottom:var(--space-2)}.section-heading>a{font-size:var(--font-meta);flex:none}main>section+section{margin-top:2.75rem}.plain-list{font-size:var(--font-list);margin:0;padding-left:1.25em}.plain-list li{margin:.28rem 0;line-height:1.75}.feature-line{font-size:var(--font-list);margin:0;line-height:1.75}.feature-line>span{color:var(--text)}.feature-line>span:before{content:"："}.text-list-section+.text-list-section{margin-top:2rem}.text-list-heading{font-size:var(--font-h3);margin:0 0 .35rem;font-weight:600;line-height:1.55}.text-list{font-size:var(--font-list);margin:0;padding-left:1.25em}.text-list li{margin:.28rem 0;line-height:1.75}.text-list-title{color:var(--text);font-weight:500}.text-list-title:is(a){color:var(--link)}.text-list-description{color:var(--text)}.text-list-meta{color:var(--muted);font-size:var(--font-meta)}.dated-list{margin:0;padding:0;list-style:none}.dated-list-item{font-size:var(--font-list);grid-template-columns:1rem minmax(0,1fr) 6rem;align-items:start;column-gap:.5rem;margin:.32rem 0;line-height:1.75;display:grid}.dated-list-bullet{color:var(--text)}.dated-list-content{min-width:0}.dated-list-title{color:var(--link)}.dated-list-description{color:var(--text)}.dated-list-meta{color:var(--muted);font-size:var(--font-meta);margin-top:.05rem;line-height:1.55}.dated-list-date{color:var(--muted);font-size:var(--font-meta);text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums;line-height:1.75}.filters{border-block:1px solid var(--rule-color);font-size:var(--font-meta);margin:1.6rem 0 1.4rem;padding-block:.65rem}.filters>div{flex-wrap:wrap;align-items:center;gap:.2rem;display:flex}.filters>div+div{margin-top:.35rem}.filters button{color:var(--muted);cursor:pointer;background:0 0;border:0;padding:.12rem .25rem}.filters button[aria-pressed=true]{color:var(--text);font-weight:600}.aux-links{font-size:var(--font-meta);margin-top:1.75rem}.article-header{margin-bottom:2.5rem}.article-header h1{max-width:22em;font-size:var(--font-article-title);margin-bottom:.75rem;line-height:1.42}.article-meta{flex-wrap:wrap;gap:.25rem 1rem;margin-top:.75rem;display:flex}.copy-code{border:1px solid var(--rule-color);background:var(--code-background);color:var(--muted);cursor:pointer;font:inherit;opacity:0;border-radius:0;padding:.16rem .4rem;font-size:.75rem;position:absolute;top:.4rem;right:.4rem}.article-prose pre:hover .copy-code,.copy-code:focus-visible{opacity:1}.article-toc{border-block:1px solid var(--rule-color);font-size:var(--font-meta);margin:0 0 2rem;padding:.6rem 0}.article-toc summary{cursor:pointer}.article-toc ol{margin:.55rem 0 0;padding-left:1.4em}.article-toc .nested{margin-left:1em}.search-form{margin:1.6rem 0 .9rem}.search-form label{color:var(--muted);font-size:var(--font-meta);margin-bottom:.35rem;display:block}.search-form>div{gap:.5rem;display:flex}.search-form input{border:1px solid var(--rule-color);background:var(--background);min-width:0;color:var(--text);border-radius:0;flex:1;padding:.55rem .65rem}.search-form button{border:1px solid var(--rule-color);background:var(--code-background);color:var(--text);cursor:pointer;border-radius:0;padding-inline:.8rem}.search-results{margin:1.25rem 0 0;padding:0;list-style:none}.search-results li{border-top:1px solid var(--rule-color);grid-template-columns:minmax(0,1fr) 6rem;column-gap:.75rem;padding:.5rem 0;display:grid}.search-result-heading{font-size:var(--font-list);gap:.5rem;display:flex}.search-result-heading span,.search-results p,.search-results time{color:var(--muted);font-size:var(--font-meta)}.search-results p{grid-column:1;margin:.15rem 0 0}.search-results time{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums;grid-area:1/2}.section-links{font-size:var(--font-list);margin-top:1.5rem;padding-left:1.25em}.section-links a{color:var(--link);margin:.28rem 0;display:list-item}@media (width<=640px){.content-shell,.nav-shell{width:calc(100% - 2 * var(--page-gutter-mobile))}.nav-shell{gap:.75rem}.site-nav{gap:1rem}main.content-shell{padding-block:2rem 3.5rem}.footer-inner{flex-direction:column;justify-content:center;align-items:flex-start;padding-block:.85rem}.dated-list-item{grid-template-columns:1rem minmax(0,1fr);row-gap:.05rem}.dated-list-date{text-align:left;grid-area:auto/2;line-height:1.55}.search-results li{grid-template-columns:1fr;row-gap:.08rem}.search-results time{text-align:left;grid-area:auto/1}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important}}