.letter-stack{display:block;position:relative;width:400px;height:550px;padding:0;border:0;background:none;text-align:left;cursor:pointer;color:#424038;font-family:Songti SC,STSong,Georgia,serif;transform-style:preserve-3d}.letter-stack:disabled{pointer-events:none}.letter-stack:focus-visible{outline:3px solid #776d59;outline-offset:12px}.letter-top{position:relative;display:flex;flex-direction:column;box-sizing:border-box;min-height:100%;padding:35px 38px 26px;background:#faf7ee;border:1px solid #e9e3d6;box-shadow:0 1px 2px #665c4520}.letter-top:after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.1;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 150 150'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='.75' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Cpath filter='url(%23n)' opacity='.45' d='M0 0h150v150H0z'/%3E%3C/svg%3E");mix-blend-mode:multiply}.letter-stack:hover .letter-top{color:#25241f}.letter-heading{display:flex;justify-content:space-between;align-items:center;padding-bottom:19px;border-bottom:1px solid #c8bca3;color:#8e846e;font-size:10px;letter-spacing:.2em}.letter-quote{margin:34px 0 0;font-family:Georgia,Iowan Old Style,Palatino,serif;font-weight:500;letter-spacing:0}.letter-quote-lead{display:block;font-size:28px;line-height:1.45}.letter-quote-line{display:block;margin-top:22px;font-size:22px;line-height:1.55;white-space:pre-line}.letter-folio{font:10px Georgia,serif;letter-spacing:.15em;text-align:center;color:#aaa08d;margin-top:auto;padding-top:15px}.letter-stack.is-airborne .letter-top{box-shadow:none}html[lang=zh-Hant] .letter-stack{font-family:Songti TC,PMingLiU,Georgia,serif}html[lang=ja] .letter-stack{font-family:Hiragino Mincho ProN,Yu Mincho,Georgia,serif}html[lang=en] .letter-stack,html[lang=fr] .letter-stack{font-family:Georgia,Palatino,serif}.letter-blog{--ink:#3e3930;--muted:#766a59;--sage:#776044;--paper:#faf6ea;--scene:#e9dfc8;position:fixed;inset:0;margin:0;padding:0;width:100%;max-width:none;height:100dvh;max-height:none;border:0;background:transparent;overflow:hidden;color:var(--ink);font-family:Georgia,Songti SC,STSong,serif}html[lang=zh-Hant] .letter-blog{font-family:Georgia,Songti TC,PMingLiU,serif}html[lang=ja] .letter-blog{font-family:Georgia,Hiragino Mincho ProN,Yu Mincho,serif}html[lang=en] .letter-blog,html[lang=fr] .letter-blog{font-family:Georgia,Palatino,serif}.letter-blog::backdrop{background:transparent}.letter-blog-paper{position:absolute;inset:0;transform-origin:center;overflow:auto;overscroll-behavior:contain;background:var(--scene);box-shadow:0 0 80px #3d392629;scrollbar-color:#cbbda4 transparent;scrollbar-width:thin}.letter-blog-content{min-height:100%;opacity:0;transition:opacity .3s ease}.letter-blog-content.is-ready{opacity:1}.letter-blog button{color:inherit;font:inherit;cursor:pointer;background:none;border:0;padding:0}.letter-blog button:focus-visible,.letter-blog a:focus-visible,.letter-blog input:focus-visible,.letter-table-scroll:focus-visible{outline:2px solid var(--sage);outline-offset:5px;border-radius:2px}.letter-blog h1:focus{outline:none}.letter-blog a{color:var(--sage);text-underline-offset:4px;text-decoration-thickness:1px}.letter-blog a:hover{color:#493c2a}.letter-blog .letter-post-link,.letter-brand a,.letter-navigation a,.letter-blog .letter-signature,.letter-pagination a{color:inherit;text-decoration:none}.letter-scene{min-height:100%;padding-bottom:14px}.letter-scene.is-reading{padding-top:12px}.letter-scene.is-reading .letter-header{margin-bottom:clamp(28px,4vw,48px)}.letter-skip{position:fixed;top:12px;left:12px;z-index:100;transform:translateY(-200%);padding:12px 20px;background:#faf7ee;border-radius:4px;color:var(--ink)}.letter-skip:focus{transform:translateY(0)}.letter-print{position:relative;width:95.7%;margin:0 auto;padding:0 clamp(9px,1.5vw,26px);min-height:calc(100svh - 14px);border-radius:0 0 15px 15px;background-color:var(--paper);background-repeat:repeat;background-size:650px;box-shadow:0 3px 4px #52472f20,0 14px 22px #52472f12}.letter-scene.is-reading .letter-print{margin-top:0;min-height:calc(100svh - 26px);border-radius:15px}.letter-emulsion{padding:clamp(36px,5vw,72px) clamp(22px,5.5vw,100px) 0;background-color:#e9dfc810;border:1px solid #ddd2bd4d;border-top:0;border-radius:0 0 5px 5px}.letter-scene.is-reading .letter-emulsion{border-top:1px solid #ddd2bd4d;border-radius:5px}.letter-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:24px 32px;margin-bottom:clamp(44px,6.5vw,88px)}.letter-brand{margin:0;font-size:clamp(27px,4.5vw,46px);font-weight:600;letter-spacing:-.02em;line-height:1.2;color:#514737}.letter-brand a{display:inline-block;padding:4px 0}.letter-brand a:hover{color:var(--sage)}.letter-navigation{display:flex;align-items:center;flex-wrap:wrap;gap:10px clamp(16px,2.5vw,36px);font-size:clamp(14px,1.65vw,20px);color:#827563}.letter-navigation button,.letter-navigation a{padding:8px 0;text-underline-offset:6px}.letter-navigation button:hover,.letter-navigation button[aria-current=page],.letter-navigation a:hover,.letter-navigation a[aria-current=page]{color:var(--ink);text-decoration:underline}.letter-main{outline:none}.letter-visually-hidden{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.letter-posts{outline:none}.letter-post{border-bottom:1px solid #ddd2bd}.letter-post:last-child{border-bottom:0}.letter-post-link{display:block;width:100%;text-align:left;padding:clamp(32px,4.8vw,66px) 0;overflow-wrap:anywhere}.letter-post:first-child .letter-post-link{padding-top:0}.letter-post-meta{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 0;margin-bottom:15px;color:var(--sage);font-size:clamp(11px,1.8vw,16px);font-weight:500;letter-spacing:.12em;text-transform:uppercase;line-height:1.7}.letter-post-meta>*+*:before{content:"·";padding:0 .7em}.letter-post h2{margin:0;font-size:clamp(23px,4vw,36px);font-weight:600;line-height:1.4;letter-spacing:-.02em;transition:color .16s ease}.letter-post p{margin:10px 0 0;color:var(--muted);font-size:clamp(15px,3.2vw,24px);line-height:1.7;letter-spacing:-.012em}.letter-post-link:hover h2{color:var(--sage)}.letter-print-border{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:24px;padding:clamp(30px,4.5vw,64px) clamp(22px,3vw,48px);color:var(--muted)}.letter-signature{text-transform:uppercase;letter-spacing:.16em;font-size:clamp(11px,1.8vw,15px);padding:8px 0}.letter-signature:hover,.letter-pagination a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:6px}.letter-pagination{display:flex;gap:32px;font-size:clamp(15px,2vw,21px)}.letter-pagination a{padding:8px 0}.letter-pagination span{display:inline-block;margin:0 5px}.letter-colophon{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;padding:0 clamp(22px,3vw,48px) 24px;color:#827563}.letter-colophon a{color:#827563}.letter-colophon a:hover{color:var(--ink)}.letter-social{display:flex;flex-wrap:wrap;align-items:center;gap:16px}.letter-social svg{display:block;width:20px;height:20px}.letter-search-field{display:block;margin-bottom:28px}.letter-search-field input{width:100%;box-sizing:border-box;padding:12px 16px;border:1px solid #d4c7af;background:#faf7ee;color:var(--ink);font:inherit;font-size:clamp(15px,2vw,18px);border-radius:2px}.letter-search-field input::placeholder{color:#827563}.letter-tags{display:flex;align-items:center;gap:20px;margin-bottom:40px;flex-wrap:wrap}.letter-tags button{padding:4px 0;font-size:clamp(12px,1.6vw,15px);color:#827563;text-underline-offset:5px}.letter-tags button[aria-pressed=true]{color:var(--sage);text-decoration:underline}.letter-load-state{padding:36px 0 72px;color:#827563;font-size:15px;line-height:1.8}.letter-load-state p{margin:0 0 8px;color:#514839;font-size:18px}.letter-load-state>span{display:block;font-size:13px}.letter-load-state button{display:block;margin-top:20px;padding:3px 0;border-bottom:1px solid #b8a78c;font-size:13px}.letter-empty-body{color:#827563;line-height:1.8}.letter-article{box-sizing:border-box;width:min(752px,100%);max-width:752px;margin:0 auto;padding:0 0 48px}.letter-eyebrow{font-size:12px;color:var(--sage);letter-spacing:.12em;text-transform:uppercase}.letter-article-heading{padding-bottom:24px;margin-bottom:24px;border-bottom:1px solid #ddd2bd}.letter-article-heading h1{font-weight:600;font-size:clamp(28px,3.5vw,36px);line-height:1.4;margin:18px 0;letter-spacing:-.02em}.letter-article-heading p{color:#827563;font-size:13px}.letter-article-heading p span{margin:0 12px}.letter-article-body{font-size:17px;line-height:1.95;color:#514839;overflow-wrap:anywhere}.letter-article-body p{margin:0 0 26px}.letter-article-end{border-top:1px solid #ddd2bd;padding-top:28px;margin-top:48px;display:flex;justify-content:flex-end;gap:20px;font-size:12px;color:#827563}.letter-article-end a{color:var(--sage);text-decoration:none}.letter-article-end a:hover{color:#493c2a}.letter-article-body h2,.letter-article-body h3,.letter-article-body h4{font-weight:600;line-height:1.5;color:var(--ink);margin:42px 0 18px}.letter-article-body h2{font-size:27px}.letter-article-body h3{font-size:23px}.letter-article-body h4{font-size:19px}.letter-article-body ul,.letter-article-body ol{padding-left:1.55em;margin:0 0 26px}.letter-article-body li{padding-left:.15em;margin:6px 0}.letter-article-body li>ul,.letter-article-body li>ol{margin:6px 0 12px}.letter-article-body li>p:first-of-type{margin-top:12px}.letter-article-body li>p:last-child{margin-bottom:10px}.letter-article-body blockquote{border-left:2px solid #b8a78c;margin:28px 0;padding:3px 0 3px 22px;color:#76634c}.letter-article-body blockquote>p:last-child{margin-bottom:0}.letter-callout{display:flex;align-items:flex-start;gap:14px;padding:18px 20px;margin:26px 0;background:#d9ceb530;border:1px solid #d9ceb56b}.letter-callout>div{min-width:0;flex:1}.letter-callout>div>p:last-child{margin-bottom:0}.letter-callout-icon{flex:0 0 24px;font-size:21px;line-height:1.6}.letter-callout-icon img{display:block;width:24px;height:24px;object-fit:contain;margin-top:5px}.letter-article-body code{font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:.83em;padding:.1em .3em;background:#d9ceb540;border-radius:2px;color:#79604a}.letter-code{position:relative;margin:28px 0}.letter-code-language{font:10px SFMono-Regular,Consolas,monospace;letter-spacing:.03em;color:#85735d;padding:10px 16px 0;background:#e8dfce7d}.letter-code pre{margin:0;padding:14px 16px 18px;overflow-x:auto;tab-size:2;background:#e8dfce7d;line-height:1.65;scrollbar-width:thin}.letter-code pre code{font-size:13px;white-space:pre;padding:0;background:none;border-radius:0;color:#514839;overflow-wrap:normal}.letter-article-body hr{border:0;border-top:1px solid #d9ceb5;margin:40px 0}.letter-image{margin:32px 0}.letter-image img{display:block;max-width:100%;height:auto;margin:auto;background:#e8dfce50}.letter-article-body figcaption{font-size:12px;line-height:1.7;color:#827563;text-align:center;margin:10px 0 0}.letter-table-scroll{overflow:auto;max-width:100%;margin:28px 0;scrollbar-width:thin}.letter-table-scroll table{width:100%;border-collapse:collapse;font-size:14px;line-height:1.75}.letter-table-scroll td,.letter-table-scroll th{padding:10px 14px;border:1px solid #d4c7af;min-width:100px;text-align:left;vertical-align:top}.letter-table-scroll th{background:#ded3bc40;font-weight:600}.letter-toggle{margin:20px 0}.letter-toggle summary{cursor:pointer;font-weight:500;padding:3px 0}.letter-toggle>div{padding:14px 0 0 22px}.letter-toggle summary:focus-visible{outline:2px solid var(--sage);outline-offset:4px}.letter-toggle>div>p:last-child{margin-bottom:0}.letter-columns{display:flex;gap:28px;align-items:flex-start;margin:26px 0}.letter-column{flex:1;min-width:0}.letter-column>:first-child{margin-top:0}.letter-bookmark{border-bottom:1px solid #d9ceb5;padding:15px 0;margin:22px 0;line-height:1.7;font-size:14px}.letter-bookmark figcaption{text-align:left}.letter-block-note{font-size:13px;color:#827563;margin:24px 0;line-height:1.8}.letter-article-body .letter-todos{list-style:none;padding-left:0}.letter-todos label{display:flex;align-items:baseline;gap:10px}.letter-todos input{accent-color:#89745a;flex-shrink:0}.letter-todos input:checked+span{color:#93846e;text-decoration:line-through}.letter-todos li>ul,.letter-todos li>ol{margin-left:24px}.letter-equation{display:block;overflow-x:auto;overflow-y:hidden;margin:28px 0;padding:4px 0;font-size:1em;scrollbar-width:thin}.letter-equation .katex-display{margin:0}.letter-inline-equation{display:inline-block;max-width:100%;vertical-align:baseline;font-size:.96em}.letter-article-body .katex{font-size:1.1em}.letter-article-body .katex-error{color:#8f513d!important;font:13px SFMono-Regular,Consolas,monospace;white-space:pre-wrap}.letter-toc{margin:28px 0 40px;padding-bottom:24px;border-bottom:1px solid #d9ceb5}.letter-toc>span{font-size:12px;color:#827563}.letter-toc ol{list-style:none;padding:0;margin:10px 0 0}.letter-toc li{margin:4px 0;padding:0;line-height:1.5}.letter-toc a{display:inline-block;border:0;background:none;padding:3px 0;text-align:left;font-size:14px;color:var(--sage);text-decoration:none}.letter-toc .letter-toc-heading_2{padding-left:16px}.letter-toc .letter-toc-heading_3{padding-left:32px}.letter-article-body h2,.letter-article-body h3,.letter-article-body h4{scroll-margin-top:24px}.notion-gray{color:#817567}.notion-brown{color:#8d6049}.notion-orange{color:#a85f20}.notion-yellow{color:#897024}.notion-green{color:#456c4a}.notion-blue{color:#3c637f}.notion-purple{color:#725579}.notion-pink{color:#985773}.notion-red{color:#a64e43}.notion-gray_background{background:#d7d0c466}.notion-brown_background{background:#d8bfaa66}.notion-orange_background{background:#edc29366}.notion-yellow_background{background:#e6d29166}.notion-green_background{background:#b7ccb066}.notion-blue_background{background:#b9cddc66}.notion-purple_background{background:#cfbfd766}.notion-pink_background{background:#e0becd66}.notion-red_background{background:#e5b8ac66}@media(max-width:640px){.letter-scene{padding-bottom:6px}.letter-scene.is-reading{padding-top:6px}.letter-print{border-radius:0 0 9px 9px}.letter-scene.is-reading .letter-print{border-radius:9px}.letter-emulsion{padding:30px 19px 0}.letter-header{gap:14px;margin-bottom:38px}.letter-navigation{width:100%;justify-content:space-between;column-gap:10px}.letter-post-link{padding:30px 0}.letter-post-meta{margin-bottom:10px;letter-spacing:.075em}.letter-post h2{font-size:23px}.letter-post p{font-size:16px;margin-top:9px}.letter-print-border{padding:25px 19px;gap:12px}.letter-pagination{gap:16px}.letter-colophon{padding:0 19px 24px}.letter-article{padding-bottom:24px}.letter-article-end{flex-direction:column}.letter-article-end a{text-align:left}.letter-columns{flex-direction:column;gap:0}.letter-column{width:100%}.letter-article-body{font-size:16px}.letter-article-body h2{font-size:24px}.letter-article-body h3{font-size:21px}.letter-article-body h4{font-size:18px}.letter-callout{padding:14px}.letter-inline-equation{overflow-x:auto;vertical-align:middle}}@media(prefers-reduced-motion:reduce){.letter-top,.letter-blog-content,.letter-post h2{transition:none}}.desk-load-panel{position:absolute;inset:0;z-index:600;display:grid;place-items:center;padding:max(28px,env(safe-area-inset-top)) max(24px,env(safe-area-inset-right)) max(28px,env(safe-area-inset-bottom)) max(24px,env(safe-area-inset-left));overflow:auto;background:#fff;color:#414239;font-family:var(--desk-font-editorial, Georgia, "Songti SC", "STSong", serif);line-height:1.7;overflow-wrap:anywhere}.desk-load-content{width:min(100%,30rem);min-width:0;margin-block:auto}.desk-load-kicker{display:block;margin-block-end:24px;color:#797c6f;font:12px/1.5 Georgia,serif;letter-spacing:.22em}.desk-load-title{display:flex;align-items:baseline;gap:12px;margin:0;font-size:clamp(23px,4.5vw,30px);line-height:1.6;font-weight:400;letter-spacing:.025em}.desk-load-indicator{flex:0 0 5px;width:5px;height:5px;align-self:center;border-radius:50%;background:#747d66;animation:desk-load-breathe 1.8s ease-in-out infinite}.desk-load-detail{margin:12px 0 0;color:#717469;font-size:14px;line-height:1.9}.desk-load-actions{display:flex;align-items:center;flex-wrap:wrap;gap:8px 24px;margin-block-start:22px}.desk-load-actions button,.desk-load-actions a{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:44px;max-width:100%;padding:8px 0;border:0;border-radius:2px;color:#59654e;background:transparent;font:inherit;font-size:14px;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px;text-decoration-color:#acb29f;cursor:pointer}.desk-load-actions .desk-load-retry{color:#66695f}.desk-load-actions button:hover,.desk-load-actions a:hover{color:#34432b;text-decoration-color:currentColor}.desk-load-actions button:focus-visible,.desk-load-actions a:focus-visible{outline:2px solid #7b896e;outline-offset:5px}.desk-load-panel.is-compact{inset:auto max(24px,env(safe-area-inset-right)) max(76px,calc(env(safe-area-inset-bottom) + 64px)) max(24px,env(safe-area-inset-left));max-height:calc(100% - 100px);padding:0;overflow:auto;background:transparent;pointer-events:none}.desk-load-panel.is-compact .desk-load-content{display:flex;align-items:center;flex-wrap:wrap;gap:4px 24px;width:min(100%,40rem);padding:12px 18px;border-block-start:1px solid #dce0d4;background:#fcfcf9f5;pointer-events:auto}.desk-load-panel.is-compact .desk-load-status{flex:1 1 15rem;min-width:0}.desk-load-panel.is-compact .desk-load-title{gap:9px;font-size:16px}.desk-load-panel.is-compact .desk-load-detail{margin-block-start:3px;font-size:13px}.desk-load-panel.is-compact .desk-load-actions{margin:0;gap:4px 20px}@keyframes desk-load-breathe{0%,to{opacity:.35}50%{opacity:1}}@media(max-width:420px){.desk-load-panel.is-compact{inset-inline:max(16px,env(safe-area-inset-left)) max(16px,env(safe-area-inset-right))}.desk-load-panel.is-compact .desk-load-content{padding:10px 14px}}@media(prefers-reduced-motion:reduce){.desk-load-indicator{animation:none}}@media(forced-colors:active){.desk-load-indicator{background:CanvasText}.desk-load-panel,.desk-load-panel.is-compact .desk-load-content{background:Canvas;color:CanvasText}}.telemetry-privacy{position:fixed;right:16px;bottom:14px;z-index:180;color:#47433b;font:12px/1.6 system-ui,sans-serif}.telemetry-privacy>summary{cursor:pointer;list-style:none;width:max-content;margin-left:auto;padding:4px 9px;border:1px solid #b8b1a380;border-radius:4px;background:#faf8f1eb}.telemetry-privacy>summary::-webkit-details-marker{display:none}.telemetry-privacy>summary:focus-visible{outline:2px solid #52634f;outline-offset:3px}.telemetry-privacy-panel{position:absolute;right:0;bottom:38px;width:min(316px,calc(100vw - 32px));box-sizing:border-box;padding:18px;border:1px solid #b8b1a3;border-radius:6px;background:#faf8f1;box-shadow:0 8px 28px #302a2226}.telemetry-privacy-panel strong{font-size:14px;font-weight:600}.telemetry-privacy-panel p{margin:9px 0}.telemetry-privacy-panel label{display:flex;align-items:center;gap:7px;padding:7px 0;cursor:pointer}.telemetry-privacy-panel input{width:16px;height:16px;margin:0;accent-color:#52634f}.telemetry-privacy-note{font-size:11px;color:#6c675d}@media print{.telemetry-privacy{display:none}}*{box-sizing:border-box}html,body,#root{width:100%;height:100%;margin:0;background:#fff}main{width:100%;height:100svh;overflow:hidden}canvas{display:block;touch-action:none;cursor:grab}canvas:active{cursor:grabbing}.fallback{height:100%;display:flex;justify-content:center;align-items:center;gap:16px;padding:24px;color:#454545}.fallback button{font:inherit;background:#fff;border:1px solid #aaa;padding:10px 16px;cursor:pointer}.fallback button:focus-visible{outline:2px solid #555;outline-offset:4px}:root{--desk-font-editorial: Georgia, "Songti SC", "STSong", "Noto Serif CJK SC", serif;--desk-font-ui: Arial, "PingFang SC", "Microsoft YaHei", sans-serif;--desk-radius-paper: 8px;--desk-radius-control: 4px;font-family:Songti SC,STSong,"Noto Serif CJK SC",Georgia,serif;color:#36382f}.desk-scene{width:100%;height:100%;position:relative}.desk-renderer{width:100%;height:100%;isolation:isolate}.desk-renderer[inert]{pointer-events:none}.desk-quick-actions,.camera-actions{position:absolute;bottom:max(80px,calc(env(safe-area-inset-bottom) + 68px));left:50%;transform:translate(-50%);display:flex;align-items:center;justify-content:center;gap:12px;width:max-content;max-width:calc(100% - 32px);z-index:10;opacity:0;pointer-events:none;transition:opacity .16s ease-out}.desk-quick-actions:focus-within,.camera-actions:focus-within{opacity:1;pointer-events:auto}.desk-quick-actions a,.desk-quick-actions button,.camera-actions button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;min-width:44px;padding:10px 18px;border:1px solid #dedfd9;border-radius:var(--desk-radius-control);background:#faf9f4ed;color:#555d50;font:16px/1.5 var(--desk-font-editorial);text-decoration:none;cursor:pointer}.desk-quick-actions a:hover,.desk-quick-actions button:hover,.camera-actions button:hover:not(:disabled){background:#f2f0e8;border-color:#b6bba5}.desk-quick-actions a:focus-visible,.desk-quick-actions button:focus-visible,.camera-actions button:focus-visible{outline:2px solid #7b896e;outline-offset:3px}.desk-quick-actions a span{color:#858b7c;font:15px var(--desk-font-ui)}.camera-actions .camera-action-primary{background:#626e58;border-color:#626e58;color:#fffdf6}.camera-actions .camera-action-primary:hover:not(:disabled){background:#526049;border-color:#526049}.camera-actions button:disabled{opacity:.55;cursor:default}.camera-action-secondary{flex:none}.camera-touch-hint{display:none}@media(max-width:700px),(max-width:1000px)and (max-height:500px),(pointer:coarse){.desk-quick-actions,.camera-actions{opacity:1;pointer-events:auto}.camera-actions{width:max-content}.camera-action-primary{min-width:0!important}.camera-pointer-hint{display:none}.camera-touch-hint{display:inline}.camera-actions~.polaroid-caption{bottom:max(146px,calc(env(safe-area-inset-bottom) + 134px));font-size:14px;color:#797d72}.desk-renderer .account-entry{min-height:44px}.camera-actions~.account-layer .account-photo-hint{display:none}.camera-actions~.account-layer .account-notice{bottom:max(150px,calc(env(safe-area-inset-bottom) + 138px))}.desk-quick-actions~.account-layer :is(.account-photo-hint,.account-notice){bottom:max(144px,calc(env(safe-area-inset-bottom) + 132px))}.account-photo-hint .account-text-button{min-height:44px}}@media(max-height:500px)and (orientation:landscape){.desk-quick-actions,.camera-actions{bottom:max(18px,env(safe-area-inset-bottom));left:auto;right:max(18px,env(safe-area-inset-right));transform:none}.camera-actions~.polaroid-caption{bottom:82px}.desk-quick-actions~.account-layer :is(.account-photo-hint,.account-notice){bottom:max(86px,calc(env(safe-area-inset-bottom) + 74px))}}@media(prefers-reduced-motion:reduce){.desk-quick-actions,.camera-actions{transition:none}}html[lang=zh-Hant]{--desk-font-editorial: Georgia, "Songti TC", PMingLiU, "Noto Serif CJK TC", serif;--desk-font-ui: "PingFang TC", "Microsoft JhengHei", sans-serif}html[lang=ja]{--desk-font-editorial: Georgia, "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif CJK JP", serif;--desk-font-ui: "Hiragino Sans", "Yu Gothic", sans-serif}html[lang=en],html[lang=fr]{--desk-font-editorial: Georgia, "Iowan Old Style", Palatino, serif;--desk-font-ui: Arial, "Helvetica Neue", sans-serif}html[lang=en] .letter-stack,html[lang=fr] .letter-stack{letter-spacing:0}.locale-switcher{position:relative;width:max-content;max-width:calc(100% - 32px);color:#6a6e62;font:13px/1.4 var(--desk-font-ui)}.locale-switcher details{position:relative}.locale-switcher summary{display:inline-flex;align-items:center;gap:10px;min-height:36px;padding:6px 12px;list-style:none;cursor:pointer;border:1px solid #dedfd9;border-radius:4px;background:#faf9f4ed}.locale-switcher summary::-webkit-details-marker{display:none}.locale-switcher summary:after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-2px) rotate(45deg)}.locale-switcher details[open] summary:after{transform:translateY(2px) rotate(225deg)}.locale-switcher summary:focus-visible,.locale-switcher a:focus-visible{outline:2px solid #7b896e;outline-offset:3px}.locale-switcher-menu{position:absolute;z-index:20;top:calc(100% + 6px);left:0;min-width:100%;display:flex;flex-direction:column;padding:6px;background:#faf9f4;border:1px solid #dedfd9;border-radius:4px;box-shadow:0 8px 24px #3d39261f}.locale-switcher-menu a{padding:8px 12px;color:inherit;text-decoration:none;white-space:nowrap;border-radius:2px}.locale-switcher-menu a[aria-current=page],.locale-switcher-menu a:hover{background:#f2f0e8}.locale-switcher.is-floating{position:absolute;z-index:12;top:max(16px,env(safe-area-inset-top));right:max(16px,env(safe-area-inset-right))}.locale-switcher.is-floating .locale-switcher-menu{left:auto;right:0}.locale-switcher.is-inline{color:#827563}@media(pointer:coarse){.locale-switcher summary,.locale-switcher-menu a{min-height:44px}}.camera-detail-status{position:absolute;top:max(20px,env(safe-area-inset-top));left:50%;transform:translate(-50%);display:flex;align-items:center;flex-wrap:wrap;justify-content:center;gap:6px 16px;width:max-content;max-width:calc(100% - 32px);padding:6px 14px;background:#faf9f4ed;color:#606356;font:13px/1.7 var(--desk-font-editorial);text-align:center;z-index:600;border-radius:var(--desk-radius-control)}.camera-detail-status p{margin:0}.camera-detail-status button{min-height:44px;padding:6px 10px;border:0;background:transparent;color:#59654e;font:inherit;text-decoration:underline;text-underline-offset:4px;cursor:pointer}.camera-detail-status button:focus-visible{outline:2px solid #7b896e;outline-offset:2px}.desk-canvas{isolation:isolate}.desk-canvas canvas{position:absolute!important;z-index:500!important;pointer-events:none!important}.desk-surface-html{clip-path:var(--foreground-photo-clip, none)}.polaroid-caption{position:absolute;left:50%;bottom:6%;transform:translate(-50%);margin:0;width:max-content;max-width:calc(100% - 40px);text-align:center;line-height:1.7;font-size:13px;letter-spacing:.12em;color:#a3a39b;pointer-events:none;animation:polaroid-caption-in .6s ease both}@keyframes polaroid-caption-in{0%{opacity:0;transform:translate(-50%,6px)}to{opacity:1;transform:translate(-50%)}}.polaroid-flash{position:absolute;inset:0;background:#fff;pointer-events:none;animation:polaroid-flash .42s ease-out forwards}@keyframes polaroid-flash{0%{opacity:.92}to{opacity:0}}.floppy-action,.floppy-hint{white-space:nowrap;font:13px/1.5 var(--desk-font-editorial);color:#55554f;background:#faf9f4e6;border:0;border-radius:var(--desk-radius-control);padding:4px 8px;box-shadow:none}.floppy-action{opacity:0;pointer-events:none;transform:translateY(4px);transition:opacity .18s ease-out,transform .18s ease-out,background .18s}.floppy-action.is-visible,.floppy-action:focus-visible{opacity:1;pointer-events:auto;transform:translateY(0)}.floppy-action:hover{background:#f2f0e9}.floppy-action:focus-visible{outline:2px solid #86857b;outline-offset:4px}.floppy-action{cursor:pointer}@media(prefers-reduced-motion:reduce){.floppy-action{transition:none}.polaroid-caption{animation:none}.polaroid-flash{display:none}}.ssg-blog,.ssg-home{--ink:#3e3930;--muted:#766a59;--sage:#776044;--paper:#faf6ea;--scene:#e9dfc8;box-sizing:border-box;color:var(--ink);font-family:Georgia,Songti SC,STSong,serif}html[lang=zh-Hant] :is(.ssg-blog,.ssg-home){font-family:Georgia,Songti TC,PMingLiU,serif}html[lang=ja] :is(.ssg-blog,.ssg-home){font-family:Georgia,Hiragino Mincho ProN,Yu Mincho,serif}html[lang=en] :is(.ssg-blog,.ssg-home),html[lang=fr] :is(.ssg-blog,.ssg-home){font-family:Georgia,Palatino,Iowan Old Style,serif}.ssg-blog *,.ssg-home *{box-sizing:border-box}.ssg-blog{width:100%;min-height:100svh;background:var(--scene);padding-bottom:14px;overflow-wrap:anywhere}.ssg-main{width:100%;height:auto;min-height:0;overflow:visible}.ssg-blog a,.ssg-home a{color:var(--sage);text-underline-offset:4px;text-decoration-thickness:1px}.ssg-blog a:hover,.ssg-home a:hover{color:#493c2a}.ssg-blog a:focus-visible,.ssg-home a:focus-visible{outline:2px solid var(--sage);outline-offset:5px;border-radius:2px}.ssg-blog .letter-brand a,.ssg-blog .letter-post-link,.ssg-blog .letter-navigation a,.ssg-blog .letter-signature,.ssg-blog .letter-pagination a{text-decoration:none}.ssg-blog .letter-brand a,.ssg-blog .letter-post-link{color:inherit}.ssg-blog .letter-navigation a{padding:8px 0;text-underline-offset:6px}.ssg-blog .letter-navigation a:hover,.ssg-blog .letter-navigation a[aria-current=page],.ssg-blog .letter-pagination a:hover{text-decoration:underline}.ssg-blog .letter-pagination{align-items:center;flex-wrap:wrap}.ssg-blog .ssg-pagination>span{font-size:13px;color:var(--muted);margin:0}.ssg-blog .letter-article-end a{font-size:14px}.ssg-blog .letter-toc a{display:inline-block;padding:3px 0;font-size:14px;text-decoration:none}.ssg-blog .letter-toc a:hover{text-decoration:underline}.ssg-blog .letter-toc a:focus-visible{outline-offset:2px}.ssg-blog .letter-toggle>div{padding-bottom:4px}.ssg-blog .letter-load-state h1{font-size:clamp(24px,3vw,32px);font-weight:500;line-height:1.5}.ssg-home{min-height:100svh;padding:clamp(40px,9vw,120px) max(24px,calc((100vw - 760px)/2));background:var(--paper);line-height:1.9}.ssg-home h1{font-weight:500;font-size:clamp(38px,7vw,64px);line-height:1.3;margin:12px 0}.ssg-home p{color:var(--muted);font-size:18px;margin:0 0 24px}.ssg-home .ssg-home-eyebrow{font-size:12px;letter-spacing:.15em;text-transform:uppercase;margin-bottom:12px}.ssg-home-link{display:inline-block;margin:0 0 36px;font-size:17px}.ssg-home h2{font-size:16px;font-weight:500;margin:0 0 12px;color:var(--muted)}.ssg-home ul{padding:0;list-style:none;margin:0}.ssg-home li{margin:10px 0}@media(max-width:640px){.ssg-blog{padding-bottom:6px}.ssg-blog .letter-pagination{gap:16px}.ssg-blog .letter-article-end{text-align:left}}