:root{color-scheme:light;--bg:#fbfaf7;--surface:#fffefa;--surface-strong:#fff;--text:#37312c;--text-soft:#625b55;--muted:#756d66;--line:#ebe5dc;--line-strong:#d9d0c5;--accent:#a85f45;--accent-deep:#8d4c37;--accent-soft:#f5e9e2;--selection:#f0ddd4;--code-bg:#f5f1eb;--shadow:0 14px 38px #4a3a2b0e;--radius-sm:10px;--radius-md:16px;--radius-lg:24px;--font-sans:"Microsoft YaHei", "Microsoft YaHei UI", "PingFang SC", "Noto Sans CJK SC", "Source Han Sans SC", "Hiragino Sans GB", "Segoe UI", Arial, sans-serif;--font-serif:var(--font-sans);--font-size-xs:.75rem;--font-size-sm:.875rem;--font-size-base:1rem;--font-size-reading:1.0625rem;--font-size-lg:1.125rem;--font-size-xl:1.375rem;--font-size-title-sm:clamp(1.375rem, 2vw, 1.75rem);--font-size-title-md:clamp(1.75rem, 3.2vw, 2.5rem);--font-size-title-lg:clamp(2rem, 4.2vw, 3.5rem)}:root[data-theme=dark]{color-scheme:dark;--bg:#292521;--surface:#322e29;--surface-strong:#3a3530;--text:#f6f2eb;--text-soft:#d8d0c7;--muted:#b4aaa0;--line:#4a443d;--line-strong:#625950;--accent:#e9a084;--accent-deep:#f3b69f;--accent-soft:#4a352d;--selection:#5b3d33;--code-bg:#302b27;--shadow:0 14px 38px #00000029}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--bg);scroll-padding-top:6rem}body{background:var(--bg);min-height:100vh;color:var(--text);font-family:var(--font-sans);font-size:var(--font-size-base);text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;margin:0;line-height:1.75}::selection{background:var(--selection)}img{max-width:100%;height:auto;display:block}button,input{font:inherit}a{color:inherit;text-underline-offset:.18em;text-decoration-thickness:.08em}a:hover{color:var(--accent)}.skip-link{z-index:100;background:var(--text);color:var(--bg);border-radius:999px;padding:.65rem 1rem;position:fixed;top:.75rem;left:.75rem;transform:translateY(-180%)}.skip-link:focus{transform:translateY(0)}:focus-visible{outline:3px solid color-mix(in srgb, var(--accent) 65%, transparent);outline-offset:3px}.container{width:min(100% - 2rem,1120px);margin-inline:auto}.narrow-container{width:min(100% - 2rem,760px);margin-inline:auto}.site-main{min-height:calc(100vh - 15rem)}.eyebrow{color:var(--accent);font-size:var(--font-size-xs);letter-spacing:.12em;text-transform:uppercase;align-items:center;gap:.65rem;margin:0 0 1rem;font-weight:760;display:flex}.eyebrow:before{content:"";background:currentColor;width:2.25rem;height:1px}.section-heading{justify-content:space-between;align-items:end;gap:1rem;margin-bottom:1.25rem;display:flex}.section-heading h2,.page-title{font-family:var(--font-serif);letter-spacing:-.02em;margin:0;font-weight:600;line-height:1.2}.section-heading h2{font-size:var(--font-size-title-md)}.page-title{font-size:var(--font-size-title-lg)}.text-link{min-height:44px;color:var(--accent-deep);font-size:var(--font-size-sm);align-items:center;gap:.45rem;font-weight:700;text-decoration:none;display:inline-flex}.text-link:hover .arrow{transform:translate(.2rem)}.arrow{transition:transform .18s}.site-header{z-index:20;border-bottom:1px solid color-mix(in srgb, var(--line) 80%, transparent);background:color-mix(in srgb, var(--bg) 88%, transparent);backdrop-filter:blur(18px);position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:1.5rem;min-height:72px;display:flex}.brand{font-family:var(--font-serif);font-size:var(--font-size-lg);align-items:center;gap:.72rem;font-weight:700;text-decoration:none;display:inline-flex}.brand-mark{border:1px solid var(--text);width:2.15rem;height:2.15rem;font-family:var(--font-sans);font-size:var(--font-size-xs);border-radius:50%;place-items:center;font-weight:850;display:grid}.desktop-nav,.header-actions{align-items:center;display:flex}.nav-link,.search-link,.theme-toggle,.mobile-menu summary{min-width:44px;min-height:44px;color:var(--text-soft);cursor:pointer;font-size:var(--font-size-sm);background:0 0;border:0;border-radius:999px;justify-content:center;align-items:center;text-decoration:none;display:inline-flex}.nav-link{padding-inline:.9rem}.nav-link[aria-current=page]{background:var(--surface);color:var(--text);box-shadow:inset 0 0 0 1px var(--line)}.header-actions{gap:.2rem}.search-link,.theme-toggle{font-size:1.05rem}.search-link:hover,.theme-toggle:hover,.mobile-menu summary:hover{background:var(--surface);color:var(--accent)}.mobile-menu{display:none;position:relative}.mobile-menu summary{list-style:none}.mobile-menu summary::-webkit-details-marker{display:none}.mobile-panel{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface-strong);width:180px;box-shadow:var(--shadow);padding:.45rem;display:grid;position:absolute;top:calc(100% + .55rem);right:0;overflow:hidden}.mobile-panel a{border-radius:var(--radius-sm);min-height:46px;padding:.55rem .8rem;text-decoration:none}.hero{grid-template-columns:minmax(0,1.5fr) minmax(250px,.65fr);align-items:center;gap:clamp(1.5rem,5vw,4rem);padding-block:clamp(2.25rem,5vw,3.75rem) clamp(2rem,4vw,3rem);display:grid}.hero h1{max-width:850px;font-family:var(--font-serif);font-size:var(--font-size-title-lg);letter-spacing:-.035em;margin:0;font-weight:600;line-height:1.05}.hero h1 em{color:var(--accent);font-style:normal}.hero-intro{max-width:38rem;color:var(--text-soft);font-size:var(--font-size-lg);margin:1rem 0 0}.hero-note{border:1px solid var(--line);border-radius:var(--radius-lg);background:color-mix(in srgb, var(--surface) 88%, 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var(--line);background:color-mix(in srgb, var(--surface) 90%, transparent);min-height:32px;color:var(--text-soft);font-size:var(--font-size-xs);border-radius:999px;align-items:center;padding:.28rem .7rem;font-weight:650;text-decoration:none;display:inline-flex}.tag:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-deep)}.topics-band{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);color:var(--text);margin-bottom:clamp(5rem,10vw,8rem);padding:clamp(2rem,6vw,4rem)}.topics-band .eyebrow{color:var(--accent)}.topics-band h2{max-width:650px;font-family:var(--font-serif);font-size:var(--font-size-title-md);letter-spacing:-.02em;margin:0 0 2rem;font-weight:600;line-height:1.2}.topics-band .tag{border-color:var(--line);background:var(--bg);color:var(--text-soft)}.topics-band .tag:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-deep)}.page-hero{padding-block:clamp(3.5rem,9vw,7rem) 3rem}.page-lede{max-width:42rem;color:var(--text-soft);font-size:var(--font-size-lg);margin:1.2rem 0 0}.archive-year{border-top:1px solid var(--line);grid-template-columns:130px minmax(0,1fr);gap:2rem;padding-block:2rem;display:grid}.archive-year h2{height:fit-content;color:var(--accent);font-family:var(--font-serif);font-size:var(--font-size-title-md);margin:0;position:sticky;top:6rem}.archive-items{display:grid}.archive-item{border-bottom:1px solid var(--line);grid-template-columns:6rem minmax(0,1fr) auto;align-items:center;gap:1rem;min-height:76px;display:grid}.archive-item time,.archive-item span{color:var(--muted);font-size:var(--font-size-sm)}.archive-item a{font-family:var(--font-serif);font-size:var(--font-size-lg);font-weight:600;text-decoration:none}.tag-cloud{grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:1rem;padding-bottom:7rem;display:grid}.tag-card{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface);justify-content:space-between;align-items:end;min-height:130px;padding:1.35rem;text-decoration:none;display:flex}.tag-card strong{font-family:var(--font-serif);font-size:var(--font-size-title-sm)}.tag-card span{color:var(--muted);font-size:var(--font-size-xs)}.about-grid{grid-template-columns:220px minmax(0,1fr);align-items:start;gap:clamp(2rem,7vw,6rem);padding-bottom:7rem;display:grid}.about-avatar{border:1px solid var(--line);border-radius:var(--radius-lg);width:100%;box-shadow:var(--shadow);overflow:hidden}.about-copy{max-width:650px}.about-copy h2{font-family:var(--font-serif);font-size:var(--font-size-title-md);margin:0 0 1.2rem;line-height:1.2}.about-copy p{color:var(--text-soft);font-size:var(--font-size-lg)}.social-links{flex-wrap:wrap;gap:.75rem;margin-top:2rem;display:flex}.button-link{border:1px solid var(--line-strong);background:var(--surface);min-height:46px;font-size:var(--font-size-sm);border-radius:999px;align-items:center;gap:.55rem;padding:.55rem 1rem;font-weight:700;text-decoration:none;display:inline-flex}.reading-progress{z-index:40;background:var(--accent);width:0;height:3px;position:fixed;top:0;left:0}.article-header{text-align:center;padding-block:clamp(3.5rem,10vw,7rem) 2.5rem}.article-header .tag-list{justify-content:center}.article-title{max-width:900px;font-family:var(--font-serif);font-size:var(--font-size-title-lg);letter-spacing:-.03em;margin:1.5rem auto;font-weight:600;line-height:1.12}.article-description{max-width:670px;color:var(--text-soft);font-size:var(--font-size-lg);margin:0 auto 1.5rem}.article-meta{color:var(--muted);font-size:var(--font-size-sm);flex-wrap:wrap;justify-content:center;gap:.55rem 1rem;display:flex}.article-shell{grid-template-columns:minmax(0,740px) 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img{border-radius:var(--radius-md);box-shadow:var(--shadow);background:#fff;margin:2.2rem auto}.prose code:not(pre code){border:1px solid var(--line);background:var(--code-bg);border-radius:6px;padding:.15em .42em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88em}.prose pre{border:1px solid var(--line);border-radius:var(--radius-md);font-size:var(--font-size-sm);box-shadow:var(--shadow);margin-block:1.8rem;padding:1.3rem 1.4rem;line-height:1.7;position:relative;overflow-x:auto}.astro-code,.astro-code span{color:var(--shiki-light);background-color:var(--shiki-light-bg)}:root[data-theme=dark] .astro-code,:root[data-theme=dark] .astro-code span{color:var(--shiki-dark);background-color:var(--shiki-dark-bg)}.copy-code{border:1px solid var(--line);background:color-mix(in srgb, var(--surface) 88%, transparent);min-width:44px;min-height:32px;color:var(--muted);cursor:pointer;font-size:var(--font-size-xs);opacity:0;border-radius:8px;transition:opacity 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a[data-depth="3"]{color:var(--muted);padding-left:.8rem}.article-actions{gap:.55rem;margin-top:1rem;display:grid}.article-actions button,.article-actions a{border:1px solid var(--line);min-height:44px;color:var(--text-soft);cursor:pointer;font-size:var(--font-size-sm);background:0 0;border-radius:999px;justify-content:center;align-items:center;text-decoration:none;display:inline-flex}.post-nav{border-top:1px solid var(--line);font-family:var(--font-sans);grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin-top:4rem;padding-top:2rem;display:grid}.post-nav a{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface);padding:1rem;text-decoration:none;display:block}.post-nav a:last-child{text-align:right}.post-nav small{color:var(--muted);font-size:var(--font-size-xs);margin-bottom:.25rem;display:block}.search-shell{padding-bottom:7rem}.search-box{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);min-height:260px;padding:clamp(1rem,4vw,2rem)}.search-components{gap:.9rem;display:grid}.search-fallback{color:var(--muted);font-size:var(--font-size-sm)}.search-box{--pagefind-ui-primary:var(--accent);--pagefind-ui-text:var(--text);--pagefind-ui-background:var(--surface);--pagefind-ui-border:var(--line-strong);--pagefind-ui-tag:var(--accent-soft);--pagefind-ui-border-width:1px;--pagefind-ui-border-radius:12px;--pagefind-ui-font:var(--font-sans)}.not-found{text-align:center;place-items:center;min-height:66vh;padding-block:4rem;display:grid}.not-found strong{color:var(--accent);font-family:var(--font-serif);font-size:clamp(5rem,18vw,11rem);line-height:1;display:block}.not-found h1{font-family:var(--font-serif);font-size:var(--font-size-title-md);margin:1rem 0 .5rem}.site-footer{border-top:1px solid var(--line);color:var(--muted);font-size:var(--font-size-sm);padding-block:2rem}.footer-inner{justify-content:space-between;align-items:center;gap:1rem;display:flex}.footer-links{flex-wrap:wrap;gap:1rem;display:flex}.footer-links a{align-items:center;min-height:40px;text-decoration:none;display:inline-flex}@media (width<=860px){.desktop-nav{display:none}.mobile-menu{display:block}.hero{grid-template-columns:1fr;align-items:start}.hero-note{display:none}.article-shell{grid-template-columns:minmax(0,740px)}.article-aside{grid-row:1;position:static}.toc{display:none}.article-actions{display:flex}.article-actions>*{flex:1}}@media (width<=680px){.container,.narrow-container{width:min(100% - 1.25rem,1120px)}.header-inner{min-height:64px}.brand-mark{width:2rem;height:2rem}.hero{padding-top:2.25rem}.post-grid{grid-template-columns:1fr}.post-card{min-height:270px}.section-heading{flex-direction:column;align-items:start}.archive-year{grid-template-columns:1fr;gap:.75rem}.archive-year h2{position:static}.archive-item{grid-template-columns:4.8rem minmax(0,1fr)}.archive-item>span{display:none}.about-grid{grid-template-columns:110px minmax(0,1fr);gap:1.25rem}.article-title{letter-spacing:-.02em}.article-shell{padding-bottom:5rem}.prose{line-height:1.86}.post-nav{grid-template-columns:1fr}.post-nav a:last-child{text-align:left}.footer-inner{flex-direction:column;align-items:flex-start}}@media (width<=480px){.brand-name{display:none}.about-grid{grid-template-columns:1fr}.about-avatar{width:120px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}:root{--bg:#fbfaf7;--surface:#fbfaf7;--surface-strong:#fffdf9;--text:#2d2a28;--text-soft:#5d5752;--muted:#8c847c;--line:#e5ded5;--line-strong:#cec4b8;--accent:#a85f45;--accent-deep:#824734;--accent-soft:#f4e7df;--selection:#35312e;--code-bg:#f3eee7;--brand-bg:#2d2a28;--brand-text:#fffdf9;--shadow:none;--radius-sm:2px;--radius-md:3px;--radius-lg:4px;--font-size-base:1.0625rem;--font-size-reading:1.125rem;--font-size-lg:1.125rem;--font-size-xl:1.375rem;--font-size-title-sm:clamp(1.35rem, 1.8vw, 1.6rem);--font-size-title-md:clamp(1.6rem, 2.6vw, 2.125rem);--font-size-title-lg:clamp(1.9rem, 4vw, 3rem)}:root[data-theme=dark]{--brand-bg:#f6f2eb;--brand-text:#292521}::selection{color:#fff}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.container{width:min(100% - 2rem,780px)}.narrow-container{width:min(100% - 2rem,720px)}body{line-height:1.8}.site-header{backdrop-filter:none;background:0 0;border-bottom:0;position:relative;top:auto}.site-header:before{background:var(--brand-bg);content:"";height:3px;display:block}.header-inner{flex-direction:column;gap:.9rem;min-height:0;padding-block:3.25rem 2rem;position:relative}.brand{background:var(--brand-bg);color:var(--brand-text);gap:0;padding:.42rem 2rem;font-size:1.25rem;font-weight:500;line-height:1.35}.brand:hover{color:var(--brand-text)}.brand-mark{display:none}.desktop-nav{gap:1.4rem}.nav-link{border-bottom:1px solid #0000;border-radius:0;min-width:0;min-height:30px;padding-inline:0}.nav-link[aria-current=page]{border-bottom-color:var(--text);box-shadow:none;background:0 0}.header-actions{position:absolute;top:3.25rem;right:0}.search-link,.theme-toggle,.mobile-menu summary{border-radius:2px;min-width:34px;min-height:34px}.search-link:hover,.theme-toggle:hover,.mobile-menu summary:hover{background:0 0}.mobile-panel{border-radius:2px}.eyebrow{display:none}.posts-section{padding-block:.75rem 4.5rem}.post-grid{display:block}.post-card{border:0;border-bottom:1px solid var(--line);min-height:0;box-shadow:none;text-align:center;background:0 0;border-radius:0;padding:3.25rem 0;transition:none;overflow:visible}.post-card:first-child{padding-top:1.5rem}.post-card:after,.post-number{display:none}.post-card:hover{border-color:var(--line);box-shadow:none;transform:none}.post-card-top,.post-card-footer{justify-content:center}.post-card h3{font-size:var(--font-size-title-md);margin:.65rem 0 1.2rem;font-weight:500;line-height:1.35}.post-card h3 a{border-bottom:1px solid #0000;padding-bottom:.16rem;display:inline}.post-card h3 a:after{display:none}.post-card h3 a:hover{border-bottom-color:var(--text);color:var(--text)}.post-description{max-width:680px;color:var(--text-soft);text-align:justify;margin-inline:auto;line-height:1.9}.post-card-footer{gap:1.5rem;margin-top:1rem;padding-top:0}.home-archive-link{text-align:center;margin:2.25rem 0 0}.home-archive-link a{color:var(--muted);font-size:var(--font-size-sm);text-decoration:none}.home-archive-link a:hover{color:var(--accent)}.page-hero{text-align:center;padding-block:2.5rem 1.75rem}.page-title{font-size:var(--font-size-title-lg);letter-spacing:-.01em;font-weight:500}.page-lede{font-size:var(--font-size-base);margin-inline:auto}.tag{min-height:28px;color:var(--muted);background:0 0;border:0;border-radius:0;padding:.12rem .3rem}.tag:hover{color:var(--accent);background:0 0;border-color:#0000}.archive-list{padding-bottom:5rem}.archive-year{border-top:0;padding-block:1.5rem;display:block}.archive-year h2{color:var(--text);font-size:var(--font-size-title-md);margin:0 0 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minmax(0,1fr);gap:2.5rem;padding-bottom:5rem}.about-avatar{box-shadow:none;border-radius:0;padding:3px}.about-copy h2{font-weight:500}.button-link{background:0 0;border-radius:2px}.article-header{padding-block:2.75rem 1.75rem}.article-title{font-size:var(--font-size-title-lg);letter-spacing:-.01em;margin:.9rem auto .7rem;font-weight:500;line-height:1.35}.article-description{font-size:var(--font-size-base)}.article-shell{grid-template-columns:minmax(0,740px);grid-template-areas:"article";gap:1.5rem;padding-bottom:5rem}.article-shell.has-toc{grid-template-areas:"aside""article"}.prose{text-align:justify;grid-area:article;line-height:1.9}.prose h2,.prose h3{font-weight:600}.prose h2{margin-top:3rem}.archived-notice{border:1px solid var(--line);background:0 0;border-left-width:1px;border-radius:0;padding:.85rem 1rem}.prose img{border:1px solid var(--line-strong);box-shadow:none;border-radius:0;padding:3px}.prose pre,.prose code:not(pre code){box-shadow:none;border-radius:2px}.article-aside{grid-area:aside;position:static}.toc{border:1px solid var(--line);background:0 0;border-width:1px 0;border-radius:0;padding:.8rem 0;display:block}.toc-header{min-height:40px}.toc-title{display:none}.toc-toggle{width:100%;min-height:40px;color:var(--text);cursor:pointer;font-size:var(--font-size-sm);background:0 0;border:0;justify-content:space-between;align-items:center;padding:0;display:flex}.toc-toggle-label{color:var(--muted);font-size:var(--font-size-xs)}.toc ol{gap:0;padding:.4rem 0 .2rem;display:none}.toc.is-open ol{display:grid}.toc li{min-width:0}.toc a{color:var(--muted);overflow-wrap:anywhere;padding:.36rem 0;font-size:.8125rem;line-height:1.5;position:relative}.toc a:hover,.toc a.is-active{color:var(--accent-deep)}.toc a.is-active{font-weight:600}.article-actions{justify-content:center;margin-top:0;display:flex}.article-actions button,.article-actions a{border-radius:2px;min-width:130px}.post-nav{border-top-style:dashed}.post-nav a{background:0 0;border:0;border-radius:0}.search-box{border:0;border-top:1px solid var(--line);background:0 0;border-radius:0;padding:1.5rem 0}.site-footer{border-top:1px solid var(--line);text-align:center;padding-block:2rem 2.5rem}.footer-inner{flex-direction:column;justify-content:center;gap:.35rem}@media (width>=1600px){.container{width:min(100% - 2rem,860px)}}@media (width<=860px){.header-inner{padding-block:2.5rem 1.75rem}.header-actions{top:2.5rem}.post-card{min-height:0;padding-block:2.5rem}.article-actions{display:flex}}@media (width<=680px){.container,.narrow-container{width:min(100% - 1.5rem,780px)}.header-inner{align-items:center;padding-top:2.25rem}.header-actions{top:2.25rem}.post-card{padding-block:2.25rem}.post-description,.prose{text-align:left}.archive-item{grid-template-columns:4.5rem minmax(0,1fr)}.about-grid{grid-template-columns:110px minmax(0,1fr);gap:1.25rem}}@media (width<=480px){.brand-name{display:inline}}@media (width>=1180px){.container.article-shell.has-toc{width:min(100% - 2rem,1200px)}.article-shell.has-toc{grid-template-columns:minmax(160px,180px) minmax(0,740px) minmax(112px,132px);grid-template-areas:"aside article empty";gap:clamp(3.5rem,5vw,4rem)}.article-aside{scrollbar-width:thin;justify-self:end;width:100%;max-width:180px;max-height:calc(100vh - 4rem);position:sticky;top:2rem;overflow-y:auto}.toc{border-width:0;padding:.15rem 0 .25rem}.toc-header{min-height:0}.toc-title{color:var(--text);font-size:var(--font-size-xs);letter-spacing:.08em;margin-bottom:.7rem;font-weight:600;display:block}.toc-toggle{display:none}.toc ol,.toc.is-open ol{display:grid}.toc a{padding:.32rem 0}.toc a.is-active:before{background:var(--accent);content:"";width:2px;position:absolute;top:.32rem;bottom:.32rem;left:-.75rem}}