:root{color-scheme:light;--bg:#faf9f6;--ink:#302f2b;--body:#514f49;--muted:#77736a;--rule:#dedbd3;--code-bg:#f0eee8;--measure:680px;--gutter:24px;--text-body:17px;--line-body:34px;--text-entry:17px;--line-entry:30px;--text-intro:18px;--line-intro:36px;--text-title:34px;--line-title:50px}html[lang=en]{--text-body:19px;--line-body:33px;--text-entry:20px;--text-intro:21px;--line-intro:35px;--text-title:38px;--line-title:49px}*{box-sizing:border-box}html{background:var(--bg);color:var(--ink);font-family:var(--font-reading);font-synthesis:none;-webkit-text-size-adjust:100%;text-size-adjust:100%}body{margin:0}::selection{background:var(--rule)}.page{width:min(calc(100% - 2 * var(--gutter)),var(--measure));margin-inline:auto;padding-block:48px 48px}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:4px}a:hover{text-decoration-color:var(--ink)}:focus-visible{outline:2px solid var(--ink);outline-offset:5px}.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:12px;padding:8px 12px;background:var(--bg);z-index:2}.masthead{display:flex;flex-direction:column;gap:24px}.identity{display:flex;align-items:center;justify-content:space-between;gap:24px}.wordmark{display:flex;flex-direction:column;text-decoration:none;flex:none}.wordmark-zh{font:500 28px/40px var(--font-ui)}.wordmark-en{font:14px/24px var(--font-auxiliary);color:var(--muted)}.languages{display:flex;align-items:center;gap:8px;font:14px/24px var(--font-auxiliary);color:var(--muted);white-space:nowrap}.languages a{text-decoration:none}.languages [aria-current]{color:var(--ink)}.languages a:hover{color:var(--ink);text-decoration:underline}.site-nav{display:flex;gap:24px;font:16px/28px var(--font-ui);color:var(--muted)}.site-nav a{text-decoration:none}.site-nav [aria-current],.site-nav a:hover{color:var(--ink)}main{margin-top:40px}.intro{margin:0 0 32px;font-size:var(--text-intro);line-height:var(--line-intro);font-weight:400;color:var(--body)}.entries-label{display:flex;align-items:baseline;justify-content:space-between;gap:24px;margin-bottom:12px;font:13px/24px var(--font-ui);color:var(--muted)}.entries-label h2{margin:0;font:inherit}.entries{border-top:1px solid var(--rule)}.entry{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:16px;text-decoration:none}.entry-title{min-width:0;font-size:var(--text-entry);line-height:var(--line-entry);overflow-wrap:break-word}.entry:hover .entry-title{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}.entry time{flex:none;width:104px;text-align:right;font:11px/20px var(--font-auxiliary);color:var(--muted);white-space:nowrap}h1{margin:0;font-size:var(--text-title);line-height:var(--line-title);font-weight:500;overflow-wrap:break-word}html[lang=en] h1{font-weight:600}.meta{display:flex;align-items:baseline;gap:16px;margin:16px 0 48px;font:11px/20px var(--font-auxiliary);color:var(--muted)}.prose{font-size:var(--text-body);line-height:var(--line-body);color:var(--body);overflow-wrap:break-word}.prose p,.prose ul,.prose ol,.prose pre,.prose table{margin:0 0 24px}.prose>:last-child{margin-bottom:0}.prose h2{margin:32px 0 16px;font-size:var(--text-entry);line-height:var(--line-entry);font-weight:400;color:var(--ink)}.prose h3{margin:32px 0 16px;font-size:var(--text-body);font-weight:500;color:var(--ink)}.prose strong{font-weight:600}.prose ul,.prose ol{padding-left:1.4em}.prose li{margin-bottom:8px}.prose blockquote{margin:32px 0;padding-left:24px;color:var(--muted)}.prose blockquote p:last-child{margin-bottom:0}.prose blockquote cite{display:block;margin-top:12px;font:11px/20px var(--font-auxiliary);font-style:normal}.prose hr{border:0;border-top:1px solid var(--rule);margin:40px 0}.prose img{display:block;max-width:100%;height:auto}.prose code{font-family:var(--font-auxiliary);font-size:.85em;font-variant-ligatures:none}.prose :not(pre)>code{background:var(--code-bg);padding:.1em .3em}.prose pre{padding:16px 24px;background:var(--code-bg);overflow-x:auto;max-width:100%;font-size:13px;line-height:24px}.prose pre code{font-size:inherit}.prose .chroma{color:var(--body)}.prose .chroma .c,.prose .chroma .c1,.prose .chroma .cm{color:var(--muted)}.prose .chroma .k,.prose .chroma .kd,.prose .chroma .kn{font-weight:700}.prose table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:.9em}.prose th,.prose td{border-bottom:1px solid var(--rule);padding:8px 12px;text-align:left}.prose .footnotes{border-top:1px solid var(--rule);margin-top:48px;padding-top:16px;font-size:13px;line-height:24px;color:var(--muted)}.prose .footnotes hr{display:none}.prose sup{line-height:0}.prose .footnote-ref a{color:var(--muted);font-family:var(--font-auxiliary)}.back{display:inline-block;margin-top:40px;font:13px/24px var(--font-ui);color:var(--muted);text-decoration:none}.back:hover{color:var(--ink);text-decoration:underline}.about h1{margin-bottom:32px}.site-footer{display:flex;align-items:baseline;justify-content:space-between;gap:24px;margin-top:80px;padding-top:24px;border-top:1px solid var(--rule);color:var(--muted);font:11px/20px var(--font-auxiliary)}.site-footer a{text-decoration:none}.site-footer a:hover{color:var(--ink);text-decoration:underline}.about .site-footer{margin-top:128px}@media(max-width:600px){:root{--text-body:16px;--line-body:31px;--text-entry:16px;--line-entry:29px;--text-intro:16px;--line-intro:32px;--text-title:27px;--line-title:42px}html[lang=en]{--text-body:18px;--line-body:30px;--text-entry:19px;--text-intro:19px;--line-intro:32px;--text-title:32px;--line-title:42px}.page{padding-block:32px 40px}.masthead{gap:24px}.wordmark-zh{font-size:25px;line-height:36px}main{margin-top:32px}.intro{margin-bottom:28px}.entry{flex-direction:column;align-items:flex-start;gap:4px}.entry time{width:auto;text-align:left}.meta{margin-bottom:32px}.site-footer{margin-top:56px}.about .site-footer{margin-top:80px}}