:root{--paper:#f4f1e9;--ink:#303c32;--green:#647857;--muted:#727969;--line:#d8dacd;--serif:Baskerville,Georgia,'Songti SC',STSong,serif;--sans:'Avenir Next',-apple-system,BlinkMacSystemFont,'PingFang SC',sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:120px}body{margin:0;background:var(--paper);color:var(--ink);font:14px/1.8 var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a:hover{color:var(--green)}button{font:inherit;color:inherit;cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--green);outline-offset:5px}::selection{background:#d5dec7}img{max-width:100%}.academic-header{max-width:1180px;margin:auto;padding:27px 36px;display:flex;align-items:center;border-bottom:1px solid var(--line);gap:30px}.signature{font:italic 28px var(--serif);letter-spacing:-1px}.page-switch{display:flex;gap:4px;margin-left:auto;padding:4px;border:1px solid var(--line);border-radius:30px;font-size:11px}.page-switch a{padding:6px 17px;border-radius:24px}.eyebrow{font-size:9px;letter-spacing:2px;color:var(--green);margin:0 0 20px}.back-link{font-size:11px;display:inline-block;border-bottom:1px solid #aeb9a1;padding-bottom:3px}.reading-layout{display:grid;grid-template-columns:170px minmax(0,760px);gap:65px;max-width:1110px;margin:55px auto 75px;padding:0 25px}.reading-rail{position:sticky;top:130px;align-self:start;font-size:11px}.reading-rail .eyebrow{margin:36px 0 16px;font-size:8px}.reading-rail nav{display:flex;flex-direction:column;gap:12px;max-height:60vh;overflow:auto}.reading-rail nav a{color:var(--muted);border-left:1px solid var(--line);padding-left:12px;line-height:1.6}.reading-rail nav a[aria-current]{color:var(--green);border-color:var(--green)}.article-heading{border-bottom:1px solid var(--line);padding-bottom:30px;margin-bottom:35px}.article-heading h1{font:normal clamp(30px,3.4vw,46px)/1.4 var(--serif);letter-spacing:-.7px;margin:0 0 22px;text-wrap:balance}.article-meta{display:flex;gap:25px;color:var(--muted);font-size:10px}.article-tags{display:flex;flex-wrap:wrap;gap:12px;font-size:9px;color:var(--green);margin-top:15px}.article-deck{font-size:13px;color:var(--muted);max-width:670px;line-height:1.9}.prose{font:16px/2 var(--serif);overflow-wrap:anywhere}.prose p{margin:0 0 1.5em}.prose h1,.prose h2,.prose h3{font-family:var(--serif);line-height:1.5;font-weight:500;scroll-margin-top:115px}.prose h1{font-size:29px}.prose h2{font-size:26px;margin:2em 0 .8em}.prose h3{font-size:21px;margin:1.8em 0 .7em}.prose a{color:#526c47;border-bottom:1px solid #bac5ad}.prose a:hover{border-color:#526c47}.prose img{display:block;max-height:680px;object-fit:contain;margin:25px auto;height:auto;cursor:zoom-in}.prose blockquote{margin:30px 0;padding:17px 24px;border-left:2px solid #95a484;background:#e9ecdf80;color:#53624b}.prose blockquote p:last-child{margin:0}.prose ul,.prose ol{padding-left:24px}.prose li{margin-bottom:8px}.prose pre{background:#e9eade;border:1px solid var(--line);padding:20px;overflow:auto;font:12px/1.8 ui-monospace,monospace;border-radius:3px}.prose code{font:12px/1.8 ui-monospace,monospace;background:#e9eade;padding:2px 4px}.prose pre code{padding:0}.prose .highlight{overflow:auto;margin:25px 0;background:#e9eade}.prose .highlight table{margin:0;border:0;width:100%}.prose .highlight td{padding:0;border:0}.prose .highlight .gutter{width:35px;opacity:.45}.prose .highlight pre{border:0;margin:0}.prose table{display:block;overflow:auto;max-width:100%;border-collapse:collapse;font:13px/1.8 var(--sans);margin:25px 0}.prose td,.prose th{border-bottom:1px solid var(--line);padding:10px 15px;text-align:left}.prose iframe,.prose video{max-width:100%;border:0}.prose mjx-container{max-width:100%;overflow-x:auto;overflow-y:hidden;padding-block:5px}.prose hr{border:0;border-top:1px solid var(--line);margin:35px 0}.article-ending{border-top:1px solid var(--line);margin-top:45px;padding:25px 0;display:flex;justify-content:space-between;gap:25px;font-size:11px}.article-ending>span{font:italic 17px var(--serif);color:var(--muted)}.adjacent-notes{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:25px}.adjacent-notes a{padding:20px 0;border-top:1px solid var(--line)}.adjacent-notes small{display:block;color:var(--muted);font-size:9px;margin-bottom:10px}.adjacent-notes span{font:18px/1.7 var(--serif)}.reading-footer{max-width:1110px;margin:auto;border-top:1px solid var(--line);padding:28px 25px 65px;display:flex;align-items:center;gap:30px}.reading-footer>span{font-size:10px;color:var(--muted)}.reading-footer nav{display:flex;gap:22px;margin-left:auto;font-size:11px}.collection{max-width:1100px;margin:55px auto 70px;padding:0 30px}.collection-heading{max-width:750px;margin-bottom:50px}.collection-heading h1{font:normal 52px/1.2 var(--serif);letter-spacing:-1px;margin:0 0 20px}.collection-heading>p:not(.eyebrow){font-size:14px;color:var(--muted);line-height:1.9}.collection-heading .back-link{margin-top:10px}.note-entry{display:grid;grid-template-columns:105px 1fr 135px 25px;gap:28px;align-items:center;border-top:1px solid var(--line);padding:30px 0}.note-entry time{font-size:10px;color:var(--muted);align-self:start;margin-top:7px}.note-entry h2{font:25px/1.5 var(--serif);margin:0 0 10px}.note-entry p{font-size:12px;color:var(--muted);margin:0;line-height:1.9}.note-entry img{width:135px;height:100px;object-fit:cover;padding:5px;background:#fffdf8;transform:rotate(2deg);box-shadow:0 2px 8px #303c3212}.note-arrow{font-size:20px;color:var(--green)}.list-pagination{display:flex;justify-content:center;gap:35px;margin-top:35px;font-size:12px}.portfolio-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:35px}.portfolio-card{border:1px solid var(--line);background:#f8f6ef}.portfolio-card>a{display:block;overflow:hidden}.portfolio-card img{display:block;width:100%;height:230px;object-fit:cover;transition:transform .3s}.portfolio-card:hover img{transform:scale(1.025)}.portfolio-copy{padding:25px}.portfolio-copy .eyebrow{font-size:8px;line-height:1.8;margin-bottom:12px}.portfolio-copy h2{font:28px/1.3 var(--serif);margin:0 0 15px}.portfolio-copy>p:not(.eyebrow){font-size:12px;color:var(--muted);line-height:1.9}.portfolio-links{display:flex;gap:25px;font-size:11px;margin-top:22px;color:var(--green)}.album-entry{border-top:1px solid var(--line);padding:35px 0;margin-bottom:25px}.album-intro{display:grid;grid-template-columns:110px 1fr 1.5fr;gap:25px;align-items:baseline;margin-bottom:28px}.album-intro time{font-size:10px;color:var(--muted)}.album-intro h2{font:28px var(--serif);margin:0}.album-intro p{font-size:12px;color:var(--muted);margin:0}.album-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.album-photo{border:0;background:#fffdf8;padding:7px;box-shadow:0 3px 10px #303c3212;cursor:zoom-in}.album-photo img{display:block;width:100%;height:260px;object-fit:cover}.album-photo:first-child{grid-column:span 2}.friends-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px}.friend-entry{display:flex;gap:20px;align-items:center;border:1px solid var(--line);padding:25px}.friend-initial{font:32px var(--serif);color:var(--green);width:44px;flex-shrink:0}.friend-entry h2{font:23px var(--serif);margin:0 0 10px}.friend-entry p{font-size:11px;color:var(--muted);margin:0}.friend-entry>span:last-child{margin-left:auto}#image-viewer{width:min(1100px,94vw);max-height:92vh;padding:20px;background:var(--paper);color:var(--ink);border:1px solid var(--line)}#image-viewer::backdrop{background:#25312bd9;backdrop-filter:blur(5px)}#image-viewer img{display:block;width:100%;height:auto;max-height:72vh;object-fit:contain}.viewer-close{display:block;margin:0 0 15px auto;background:none;border:1px solid var(--line);padding:8px 15px;font-size:12px}.viewer-caption{font:italic 15px var(--serif);text-align:center}.skip-link{position:fixed;top:-100px;left:20px;background:var(--paper);padding:10px;z-index:60}.skip-link:focus{top:10px}
@media(max-width:1000px){.reading-layout{gap:30px;grid-template-columns:140px minmax(0,1fr)}.album-grid .album-photo img{height:200px}.reading-footer>span{display:none}}
@media(max-width:760px){.academic-header{padding:22px 0;margin:0 22px}.signature{font-size:25px}.page-switch{font-size:10px}.page-switch a{padding:5px 11px}.reading-layout{display:block;margin-top:25px;padding:0 25px}.reading-rail{position:static;margin-bottom:28px}.reading-rail .eyebrow{display:none}.reading-rail nav{margin-top:20px;flex-direction:row;gap:20px;white-space:nowrap;max-width:100%;padding-bottom:8px}.reading-rail nav a{border-left:0;padding:0;font-size:10px}.article-heading h1{font-size:31px}.prose{font-size:16px;line-height:1.95}.prose h2{font-size:24px}.collection{padding:0 24px;margin-top:35px}.collection-heading{margin-bottom:30px}.collection-heading h1{font-size:40px}.portfolio-grid,.friends-grid{grid-template-columns:1fr;gap:24px}.portfolio-card img{height:190px}.note-entry{grid-template-columns:1fr 80px;gap:12px;padding:24px 0}.note-entry time{grid-column:1/-1}.note-entry>div{grid-column:1}.note-entry img{width:80px;height:90px;grid-column:2;grid-row:2}.note-entry h2{font-size:22px}.note-arrow{display:none}.note-entry p{font-size:11px}.album-intro{display:block}.album-intro h2{margin:10px 0}.album-grid{grid-template-columns:1fr 1fr;gap:10px}.album-grid .album-photo img{height:180px}.album-grid .album-photo:first-child img{height:240px}.reading-footer{margin:0 24px;padding:25px 0 120px;display:block}.reading-footer nav{margin-top:20px;flex-wrap:wrap}.article-ending{flex-wrap:wrap}.adjacent-notes{gap:20px}.adjacent-notes span{font-size:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.travel-jump-nav { display:flex; flex-wrap:wrap; gap:10px; margin-top:24px; }
.travel-jump-nav a { border:1px solid var(--line); padding:9px 14px; border-radius:3px; font-size:12px; }
.travel-jump-nav a:hover { background:#e8eadf; }
.album-entry[id] { scroll-margin-top:110px; }

/* Article photographs form a quiet contact sheet, with no horizontal strip. */
.prose .article-gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;align-items:start;margin:32px 0 42px;padding:0;overflow:visible}
.prose .article-gallery img{display:block;width:100%;height:auto;max-height:none;margin:0;border:7px solid #fffdf8;box-shadow:0 3px 14px #303c3210;border-radius:2px;cursor:zoom-in}
.prose .article-gallery--diagrams{gap:18px;background:#fffdf8;padding:18px;border:1px solid var(--line)}
.prose .article-gallery--diagrams img{border:0;box-shadow:none}
.prose img[role=button]:focus-visible{outline:2px solid var(--green);outline-offset:5px}
.viewer-controls{display:flex;justify-content:center;align-items:center;gap:20px;margin-top:14px}
.viewer-controls button{background:transparent;border:1px solid var(--line);padding:8px 16px;min-height:44px}
.viewer-count{font:12px var(--sans);color:var(--muted)}
@media(max-width:600px){.prose .article-gallery{gap:12px;margin:24px 0 32px}.prose .article-gallery img{border-width:4px}.prose .article-gallery--diagrams{grid-template-columns:1fr;padding:10px;gap:20px}}

.viewer-controls[hidden]{display:none}

.not-found{max-width:960px;min-height:550px;padding:55px 30px;margin:auto;display:grid;grid-template-columns:1fr 360px;gap:45px;align-items:center}.not-found h1{font:400 clamp(36px,4vw,54px)/1.2 var(--serif);margin:0 0 23px;text-wrap:balance}.not-found-note{font-size:13px;line-height:1.9;color:var(--muted);max-width:340px}.not-found-home{display:inline-block;padding:10px 24px;margin-top:18px;border:1px solid var(--line);border-radius:28px;font-size:12px}.not-found-home:hover{background:#e5e7db}.not-found-illustration{width:100%;height:auto}.section-breadcrumb[hidden]{display:none}@media(max-width:650px){.not-found{grid-template-columns:1fr;gap:28px;padding:44px 28px;text-align:center}.not-found-note{margin-inline:auto}.not-found-illustration{width:250px;justify-self:center}}

/* A small marginal illustration keeps the error message foremost. */
.not-found{grid-template-columns:1fr 300px;gap:65px}.not-found-illustration{width:300px;max-width:100%;justify-self:center}@media(max-width:650px){.not-found{grid-template-columns:1fr;gap:12px}.not-found-illustration{width:250px}}

.blog-title-row{display:flex;align-items:center;gap:22px;margin-bottom:16px}
.collection-heading .blog-title-row h1{margin:0}
.blog-title-row .margin-character{width:76px;height:76px;margin-left:auto}
@media(max-width:600px){.blog-title-row{gap:18px}.blog-title-row .margin-character{width:64px;height:64px}}

/* Keep the title and its marginal portrait aligned with the full post list. */
.collection-heading.has-margin-reader{max-width:none}

/* Editorial reading scale: generous type, short lines, quiet paper. */
.reading-layout{grid-template-columns:190px minmax(0,700px);gap:64px;max-width:1040px;margin:64px auto 96px;padding-inline:28px}
.reading-layout>article{min-width:0}
.reading-rail{font-size:14px;top:130px}
.reading-rail .back-link{font-size:14px}
.reading-rail .eyebrow{font-size:11px;letter-spacing:1px}
.reading-rail nav{gap:16px}
.reading-rail nav a{color:#586052;line-height:1.5;padding-block:3px}
.reading-rail nav a[aria-current]{color:#28372b;font-weight:600;border-left-width:2px}
.article-heading{padding-bottom:36px;margin-bottom:40px}
.article-heading h1{font-size:clamp(36px,4.2vw,54px);line-height:1.12;letter-spacing:-1px;color:#252c26}
.article-deck{font-size:20px;line-height:1.6;color:#4c5549;max-width:38em}
.article-meta,.article-tags,.article-tags span{font-size:13px}
.prose{font-family:Georgia,'Songti SC',STSong,serif;font-size:21px;line-height:1.72;color:#292f29}
.prose p{margin-bottom:1.25em}
.prose h1,.prose h2,.prose h3{font-family:var(--sans);font-weight:600;line-height:1.3;letter-spacing:-.4px;color:#252c26;scroll-margin-top:140px}
.prose h1{font-size:36px}.prose h2{font-size:30px;margin:2em 0 .8em}.prose h3{font-size:24px;margin:1.7em 0 .7em}
.prose blockquote{padding:20px 26px;margin:32px 0;color:#354333;background:#e9ecdf80;border-left:3px solid #8b9d7b}
.prose a{color:#405c36;border-bottom-color:#91a383}
.prose code,.prose pre{font-size:15px;line-height:1.65}
.prose table{font-size:16px;line-height:1.6}
.article-ending,.reading-footer,.reading-footer>span{font-size:14px}
.adjacent-notes small{font-size:12px}.adjacent-notes span{font-size:21px}
.collection-heading>p:not(.eyebrow){font-size:18px;color:#4c5549}
.note-entry h2{font-size:30px}.note-entry p{font-size:16px;line-height:1.7;color:#50594c}.note-entry time{font-size:13px}.note-category{font-size:12px}
html[lang="zh-CN"] .prose{font-size:20px;line-height:1.9}
@media(max-width:1000px){.reading-layout{grid-template-columns:165px minmax(0,700px);gap:36px}}
@media(max-width:760px){
 .reading-layout{display:block;margin-top:32px;padding-inline:24px}
 .reading-rail{margin-bottom:32px}.reading-rail nav{gap:20px}.reading-rail nav a{font-size:13px;min-height:36px}
 .article-heading h1{font-size:36px;letter-spacing:-.5px}.article-deck{font-size:18px;line-height:1.6}
 .prose{font-size:18px;line-height:1.75}.prose h1{font-size:30px}.prose h2{font-size:26px}.prose h3{font-size:22px}
 .prose blockquote{padding:16px 20px}.prose code,.prose pre{font-size:14px}
 html[lang="zh-CN"] .prose{font-size:18px;line-height:1.85}
 .note-entry h2{font-size:25px}.note-entry p{font-size:15px}
}
@media(max-width:480px){.prose h1,.prose h2,.prose h3{scroll-margin-top:220px}}