:root{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;--font-serif:"Iowan Old Style", "Songti SC", "Noto Serif CJK SC", "Noto Serif SC", "Source Han Serif SC", "Source Han Serif CN", STSong, "Microsoft YaHei", serif;--font-mono:ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;--measure:44rem;--bg:#fbfaf7;--surface:#f3f0ea;--code-bg:#f5f2ec;--text:#23211d;--text-2:#57524a;--text-3:#736c62;--border:#e5e0d6;--accent:#bc3a28;--accent-soft:#f8e6e1;color-scheme:light}:root[data-theme=dark]{--bg:#151413;--surface:#1f1d1b;--code-bg:#1b1a18;--text:#ebe7df;--text-2:#bab3a8;--text-3:#8e877c;--border:#2f2c28;--accent:#f0846b;--accent-soft:#3a2420;color-scheme:dark}@media (prefers-color-scheme:dark){:root:not([data-theme]){--bg:#151413;--surface:#1f1d1b;--code-bg:#1b1a18;--text:#ebe7df;--text-2:#bab3a8;--text-3:#8e877c;--border:#2f2c28;--accent:#f0846b;--accent-soft:#3a2420;color-scheme:dark}}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:1.5rem}body{background:var(--bg);min-height:100dvh;color:var(--text);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-autospace:normal;flex-direction:column;margin:0;font-size:1rem;line-height:1.75;display:flex}main{flex:1 0 auto}.container{width:min(100% - 2.5rem, var(--measure));margin-inline:auto}a{color:inherit}::selection{background:color-mix(in srgb, var(--accent) 24%, transparent)}:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}.skip-link{z-index:10;background:var(--text);color:var(--bg);border-radius:6px;padding:.5rem 1rem;text-decoration:none;position:absolute;top:-100px;left:1rem}.skip-link:focus{top:1rem}@media (prefers-reduced-motion:no-preference){@view-transition{navigation:auto}}.site-header{padding-block:1.5rem}.header-inner{justify-content:space-between;align-items:center;gap:1rem;display:flex}.brand{color:var(--text);font-family:var(--font-serif);letter-spacing:.01em;white-space:nowrap;align-items:center;gap:.65rem;font-size:1.2rem;font-weight:600;text-decoration:none;display:inline-flex}.brand-mark{flex:none;width:1.75rem;height:1.75rem}.brand-mark rect{fill:var(--accent)}.site-nav{align-items:center;gap:.25rem;display:flex}.site-nav ul{gap:.125rem;margin:0;padding:0;list-style:none;display:flex}.site-nav a{color:var(--text-2);border-radius:999px;padding:.3rem .75rem;font-size:.95rem;text-decoration:none;transition:color .15s,background-color .15s;display:block}.site-nav a:hover{background:var(--surface);color:var(--text)}.site-nav a[aria-current]{color:var(--accent)}.theme-toggle{width:2.25rem;height:2.25rem;color:var(--text-2);cursor:pointer;background:0 0;border:0;border-radius:999px;place-items:center;padding:0;transition:color .15s,background-color .15s;display:grid}.theme-toggle:hover{background:var(--surface);color:var(--text)}.theme-toggle svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;width:1.15rem;height:1.15rem}.icon-sun,[data-theme=dark] .icon-moon{display:none}[data-theme=dark] .icon-sun{display:block}@media (width<=26rem){.brand{font-size:1.1rem}.site-nav a{padding-inline:.55rem}}.hero{padding:3.5rem 0 3.25rem}.hero:before{content:"";background:var(--accent);border-radius:2px;width:2.5rem;height:3px;margin-bottom:1.75rem;display:block}.hero h1{font-family:var(--font-serif);letter-spacing:.01em;margin:0 0 1rem;font-size:clamp(2rem,1.4rem + 2.6vw,2.75rem);font-weight:600;line-height:1.25}.hero-intro{max-width:34em;color:var(--text-2);margin:0;font-size:1.125rem}.hero-links{flex-wrap:wrap;gap:.5rem 1.5rem;margin:1.5rem 0 0;display:flex}.hero-links a{color:var(--text);text-decoration:underline;text-decoration-color:var(--border);text-underline-offset:.35em;text-decoration-thickness:2px;transition:text-decoration-color .15s}.hero-links a:hover{text-decoration-color:var(--accent)}.section-head{border-bottom:1px solid var(--border);justify-content:space-between;align-items:baseline;gap:1rem;padding-bottom:.75rem;display:flex}.section-head h2{color:var(--text-3);letter-spacing:.12em;margin:0;font-size:.875rem;font-weight:600}.section-head a{color:var(--text-3);font-size:.875rem;text-decoration:none}.section-head a:hover{color:var(--accent)}.empty{color:var(--text-3);padding:2rem 0}.post-list{margin:0;padding:0;list-style:none}.post-item{border-bottom:1px solid var(--border);grid-template-columns:6.5rem 1fr;gap:1.25rem;padding:1.15rem 0;display:grid;position:relative}.post-item time{color:var(--text-3);font-family:var(--font-mono);font-variant-numeric:tabular-nums;padding-top:.15rem;font-size:.85rem}.post-item-title{color:var(--text);font-size:1.125rem;font-weight:600;line-height:1.5;text-decoration:none;transition:color .15s}.post-item-title:after{content:"";position:absolute;inset:0}.post-item:hover .post-item-title{color:var(--accent)}.post-item p{color:var(--text-2);margin:.3rem 0 0;font-size:.95rem;line-height:1.65}.post-list.compact .post-item{border-bottom-style:dashed;grid-template-columns:3.5rem 1fr;padding:.75rem 0}.post-list.compact .post-item-title{font-size:1.05rem;font-weight:500}.badge{background:var(--accent-soft);color:var(--accent);vertical-align:.15em;border-radius:4px;margin-left:.5rem;padding:0 .5rem;font-size:.75rem;font-weight:500;line-height:1.6;display:inline-block}@media (width<=36rem){.post-item{grid-template-columns:1fr;gap:.15rem}}.page-header{padding:2.5rem 0 1.5rem}.page-header h1{font-family:var(--font-serif);margin:0 0 .5rem;font-size:clamp(1.9rem,1.5rem + 1.6vw,2.4rem);font-weight:600;line-height:1.3}.page-header p{color:var(--text-2);margin:0}.page-header .eyebrow{margin-bottom:.5rem;font-size:.875rem}.page-header .eyebrow a{color:var(--text-3);text-decoration:none}.page-header .eyebrow a:before{content:"← "}.page-header .eyebrow a:hover{color:var(--accent)}.year-group{margin-top:1.5rem}.year{font-family:var(--font-serif);align-items:baseline;gap:.75rem;margin:0 0 .25rem;font-size:1.5rem;font-weight:600;display:flex}.year span{color:var(--text-3);font-family:var(--font-sans);font-size:.85rem;font-weight:400}.tag-cloud{flex-wrap:wrap;gap:.75rem;margin:.5rem 0 0;padding:0;list-style:none;display:flex}.tag-cloud a{border:1px solid var(--border);color:var(--text);border-radius:999px;align-items:baseline;gap:.5rem;padding:.4rem 1rem;text-decoration:none;transition:color .15s,border-color .15s;display:inline-flex}.tag-cloud a:hover{border-color:var(--accent);color:var(--accent)}.tag-cloud .count{color:var(--text-3);font-size:.8rem}.tag-list{flex-wrap:wrap;gap:.5rem;margin:1rem 0 0;padding:0;list-style:none;display:flex}.tag{background:var(--surface);color:var(--text-2);border-radius:999px;padding:.1rem .7rem;font-size:.85rem;text-decoration:none;transition:color .15s,background-color .15s;display:inline-block}.tag:hover{background:var(--accent-soft);color:var(--accent)}.post-header{padding:2.5rem 0 2rem}.post-header .badge{margin:0 0 1rem}.post-header h1{font-family:var(--font-serif);letter-spacing:.01em;margin:0 0 1rem;font-size:clamp(1.75rem,1.3rem + 2vw,2.4rem);font-weight:600;line-height:1.35}.post-meta{color:var(--text-3);flex-wrap:wrap;gap:.25rem .5rem;margin:0;font-size:.9rem;display:flex}.post-cover{border-radius:12px;width:100%;height:auto;margin-bottom:2.5rem;display:block}.post-body{position:relative}.toc ol{margin:0;padding:0;font-size:.9rem;line-height:1.55;list-style:none}.toc li{margin:.45rem 0}.toc li.sub{padding-left:1rem}.toc a{color:var(--text-3);text-decoration:none;transition:color .15s}.toc a:hover,.toc a.active{color:var(--accent)}.toc-inline{border:1px solid var(--border);border-radius:10px;margin:0 0 2rem;padding:.75rem 1.1rem}.toc-inline summary{color:var(--text-2);cursor:pointer;font-weight:600}.toc-inline ol{margin-top:.5rem}.toc-side{display:none}.toc-title{color:var(--text-3);letter-spacing:.12em;margin:0 0 .5rem;font-size:.8rem;font-weight:600}@media (width>=82rem){.toc-inline{display:none}.toc-side{width:13rem;height:100%;display:block;position:absolute;top:0;left:calc(100% + 3.5rem)}.toc-sticky{border-left:1px solid var(--border);max-height:calc(100vh - 4rem);padding-left:1rem;position:sticky;top:2rem;overflow-y:auto}}.post-nav{border-top:1px solid var(--border);grid-template-columns:1fr 1fr;gap:1rem;margin-top:4rem;padding-top:2rem;display:grid}.post-nav a{border:1px solid var(--border);color:var(--text);border-radius:10px;padding:1rem 1.15rem;line-height:1.5;text-decoration:none;transition:border-color .15s;display:block}.post-nav a:hover{border-color:var(--accent)}.post-nav small{color:var(--text-3);margin-bottom:.25rem;font-size:.8rem;display:block}.post-nav .newer{text-align:right;grid-column:2}@media (width<=36rem){.post-nav{grid-template-columns:1fr}.post-nav .newer{grid-column:auto}}.prose{overflow-wrap:break-word;font-size:1.0625rem;line-height:1.85}.prose>:first-child{margin-top:0}.prose p{margin:0 0 1.25em}.prose h2,.prose h3,.prose h4{font-family:var(--font-serif);margin:2.2em 0 .8em;font-weight:600;line-height:1.4}.prose h2{font-size:1.5rem}.prose h3{font-size:1.25rem}.prose h4{font-size:1.05rem}.prose a{color:var(--accent);text-decoration:underline;text-decoration-color:color-mix(in srgb, var(--accent) 35%, transparent);text-underline-offset:.25em;text-decoration-thickness:1px;transition:text-decoration-color .15s}.prose a:hover{text-decoration-color:currentColor}.prose strong{font-weight:650}.prose ul,.prose ol{margin:0 0 1.25em;padding-left:1.5em}.prose li{margin:.35em 0}.prose li::marker{color:var(--text-3)}.prose li>ul,.prose li>ol{margin-bottom:0}.prose li:has(>input[type=checkbox]){list-style:none}.prose input[type=checkbox]{accent-color:var(--accent);margin:0 .5em 0 -1.4em}.prose blockquote{border-left:3px solid var(--accent);color:var(--text-2);margin:1.75em 0;padding:.1em 0 .1em 1.25em}.prose blockquote p:last-child{margin-bottom:0}.prose hr{text-align:center;border:0;margin:3em 0}.prose hr:after{content:"· · ·";color:var(--text-3);letter-spacing:.6em}.prose img{border-radius:10px;max-width:100%;height:auto;margin:2em auto;display:block}.prose mark{background:var(--accent-soft);color:inherit;border-radius:3px;padding:0 .15em}.prose kbd{border:1px solid var(--border);font-family:var(--font-mono);border-bottom-width:2px;border-radius:5px;padding:.1em .45em;font-size:.85em}.prose :not(pre)>code{border:1px solid var(--border);background:var(--surface);font-family:var(--font-mono);border-radius:5px;padding:.12em .4em;font-size:.875em}.prose pre{border:1px solid var(--border);font-family:var(--font-mono);border-radius:10px;margin:1.75em 0;padding:1rem 1.25rem;font-size:.875rem;line-height:1.7;overflow-x:auto}.prose table{border-collapse:collapse;width:max-content;max-width:100%;margin:1.75em 0;font-size:.95rem;display:block;overflow-x:auto}.prose th,.prose td{border-bottom:1px solid var(--border);text-align:left;padding:.55em 1em}.prose th{color:var(--text-2);border-bottom-width:2px;font-weight:600}.prose .footnotes{border-top:1px solid var(--border);color:var(--text-2);margin-top:3em;padding-top:1em;font-size:.9rem}.prose sup a{text-decoration:none}.astro-code{background-color:var(--code-bg)!important}:root[data-theme=dark] .astro-code,:root[data-theme=dark] .astro-code span{color:var(--shiki-dark)!important}@media (prefers-color-scheme:dark){:root:not([data-theme]) .astro-code,:root:not([data-theme]) .astro-code span{color:var(--shiki-dark)!important}}.code-block{margin:1.75em 0;position:relative}.code-block pre{margin:0}.copy-button{border:1px solid var(--border);background:var(--bg);color:var(--text-3);font:inherit;cursor:pointer;opacity:0;border-radius:6px;padding:.15rem .6rem;font-size:.75rem;transition:opacity .15s;position:absolute;top:.5rem;right:.5rem}.code-block:hover .copy-button,.copy-button:focus-visible{opacity:1}@media (hover:none){.copy-button{opacity:1}}.not-found{text-align:center;padding:4rem 0 2rem}.not-found-code{color:var(--accent);font-family:var(--font-serif);margin:0;font-size:5rem;font-weight:600;line-height:1}.not-found h1{font-family:var(--font-serif);margin:1.25rem 0 .5rem;font-size:1.6rem;font-weight:600}.not-found p{color:var(--text-2)}.not-found a{color:var(--accent)}.site-footer{color:var(--text-3);margin-top:5rem;padding-bottom:2.5rem;font-size:.875rem}.footer-inner{border-top:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;gap:.5rem 1.5rem;padding-top:1.5rem;display:flex}.site-footer p{margin:0}.footer-links{gap:.5rem;display:flex}.site-footer a{color:var(--text-3);text-decoration:none}.site-footer a:hover{color:var(--text)}