@font-face{font-family:DMSans;src:url('../assets/dm-sans-400.ttf') format('truetype');font-weight:400;font-display:swap}
@font-face{font-family:DMSans;src:url('../assets/dm-sans-500.ttf') format('truetype');font-weight:500;font-display:swap}
@font-face{font-family:DMSans;src:url('../assets/dm-sans-600.ttf') format('truetype');font-weight:600;font-display:swap}
@font-face{font-family:NotoSC;src:url('../assets/fonts/noto-sc.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:NotoTC;src:url('../assets/fonts/noto-tc.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:EssayWenKai;src:url('../assets/wenkai-essay.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:IBMPlexMono;src:url('../assets/ibm-plex-mono-400.woff2') format('woff2');font-weight:400;font-display:swap}
:root{--bg:#f7f7f5;--ink:#232427;--muted:#66686c;--accent:#3151c5;--line:#d8d9d6;--soft:#eeefeb;--paper:#fbfbf9;--ui:DMSans,NotoSC,sans-serif;--prose:EssayWenKai,NotoSC,sans-serif;--mono:IBMPlexMono,DMSans,NotoSC,monospace;--gutter:40px;--columns:12;--body-size:14px;--space:24px;font-size:var(--body-size);scrollbar-gutter:stable;color-scheme:light}
html[lang=zh-Hant]{--ui:DMSans,NotoTC,sans-serif;--prose:EssayWenKai,NotoTC,sans-serif;--mono:IBMPlexMono,DMSans,NotoTC,monospace}
html[lang=en]{--prose:var(--ui)}
[lang=zh-Hant]:not(html){font-family:DMSans,NotoTC,sans-serif}
[lang=zh-Hans]:not(html){font-family:DMSans,NotoSC,sans-serif}
html[data-theme=dark]{--bg:#202124;--ink:#eeefec;--muted:#b0b3b8;--accent:#9cb4ff;--line:#45484d;--soft:#292c30;--paper:#25272b;color-scheme:dark}
html[data-size=large]{--body-size:17px}
*{box-sizing:border-box}
body{margin:0;color:var(--ink);background:var(--bg);font:400 1rem/1.8 var(--ui);text-rendering:optimizeLegibility;-webkit-text-size-adjust:100%}
[hidden]{display:none!important}
::selection{background:var(--accent);color:var(--bg)}
a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:4px}
a:hover{text-decoration-thickness:2px}
button,input,select,textarea{font:inherit;color:inherit}
button{border:1px solid var(--line);background:transparent;border-radius:0;cursor:pointer;min-height:44px;padding:8px 12px;line-height:1.5}
button:hover{border-color:var(--ink)}
button[aria-disabled=true]{opacity:.45;cursor:default}
button:disabled{opacity:.45;cursor:not-allowed}
:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
img,svg,iframe{max-width:100%}
img{vertical-align:middle}
button svg{width:20px;height:20px}
h1,h2,h3,h4{font-weight:500;text-wrap:pretty}
p{margin-block:0 16px}
time{font-variant-numeric:tabular-nums}
ul,ol{padding-inline-start:1.5em}
.page-frame{width:min(calc(100% - var(--gutter)*2),1440px);margin-inline:auto;min-width:0}
.site-header{display:grid;grid-template-columns:minmax(100px,1fr) auto minmax(220px,1fr);align-items:center;gap:24px;min-height:88px;border-bottom:1px solid var(--line);position:relative;z-index:10}
.site-brand{display:inline-flex;align-items:center;gap:12px;min-height:44px;color:var(--ink);font-weight:500;text-decoration:none;white-space:nowrap;font-size:.928571rem}
.desktop-navigation{display:flex;justify-content:center;align-items:center;gap:clamp(12px,1.5vw,24px);min-width:0}
.desktop-navigation a{display:inline-flex;align-items:center;min-height:44px;position:relative;font-size:.928571rem;text-decoration:none;color:var(--muted);white-space:nowrap}
.desktop-navigation a[aria-current=page]{color:var(--ink)}
.desktop-navigation a[aria-current=page]:after{content:'';position:absolute;bottom:4px;left:0;right:0;border-bottom:1px solid var(--ink)}
.header-tools{position:relative;justify-self:end;grid-column:2;grid-row:1;display:none}
.display-options{display:grid;gap:20px}
.display-options fieldset{min-inline-size:0;padding:0;margin:0;border:0;display:block}
.display-options legend{font-size:.928571rem;color:var(--muted);padding:0;margin-bottom:8px;width:100%;line-height:1.6}
.setting-choices{display:flex;flex-wrap:wrap;gap:4px 12px}
.setting-choices :is(a,button){min-height:44px;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;background:transparent;color:var(--ink);border:1px solid transparent;padding:8px 12px;font-size:.928571rem;line-height:1.5;white-space:normal;min-width:44px}
.setting-choices [aria-pressed=true],.setting-choices [aria-current=true]{background:var(--soft);border-bottom-color:var(--accent);color:var(--accent)}
.desktop-display-settings{display:flex;align-items:center;justify-self:end;gap:4px;min-width:0}
.header-languages{display:flex;align-items:center;margin-right:8px}
.header-languages a{position:relative;display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;color:var(--muted);text-decoration:none;font-size:.857143rem}
.header-languages a[aria-current=true]{color:var(--ink)}
.header-languages a[aria-current=true]:after{content:'';position:absolute;bottom:5px;left:14px;right:14px;border-bottom:1px solid var(--ink)}
.header-icon{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;min-width:44px;padding:0;border:0;color:var(--muted)}
.header-icon:hover{background:var(--soft);color:var(--ink)}
.header-icon[aria-pressed=true]{color:var(--accent);background:var(--soft)}
.header-type>span{font:500 18px/1 DMSans,sans-serif;letter-spacing:-1px}.header-type>span>span{font-size:14px;letter-spacing:0}
.theme-sun{display:none}html[data-theme=dark] .theme-sun{display:block}html[data-theme=dark] .theme-moon{display:none}
.mobile-menu-trigger,.menu-fallback{display:none}
main.page-frame{padding-top:32px;min-height:50vh}
main>.home-page,main>.about-page{margin-top:-32px}
.site-footer{display:flex;align-items:baseline;justify-content:space-between;gap:24px;padding-block:24px 40px;margin-top:48px;border-top:1px solid var(--line);font-size:.928571rem;color:var(--muted)}
.site-footer>div{display:flex;flex-wrap:wrap;gap:8px 24px}
.site-footer a{color:var(--ink);display:inline-flex;align-items:center;min-height:44px;text-decoration:none}
.skip-link{position:fixed;left:20px;top:12px;transform:translateY(-200%);background:var(--bg);border:2px solid var(--accent);padding:8px 16px;z-index:2000}
.skip-link:focus{transform:none}
.sr-only{position:absolute;inline-size:1px;block-size:1px;clip-path:inset(50%);overflow:hidden;white-space:nowrap}
:target{scroll-margin-top:24px}
dialog{color:var(--ink);background:var(--bg);border:1px solid var(--line);padding:0;max-height:calc(100dvh - 48px);max-width:calc(100vw - 40px)}
dialog::backdrop{background:rgba(15,17,22,.55)}
.object-dialog[open]{display:grid;grid-template-rows:auto minmax(0,1fr) auto;width:800px;height:auto;max-height:calc(100dvh - 48px);overflow:hidden}
.photo-dialog[open]{width:1080px}
.photo-original{display:inline-flex;align-items:center;min-height:44px;font-size:.928571rem;margin-top:8px}
.dialog-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 20px;border-bottom:1px solid var(--line);min-height:68px}
.dialog-head h2,.dialog-head>span{font-size:1.142857rem;line-height:1.5;margin:0;font-weight:500}
.dialog-close{width:44px;min-width:44px;height:44px;padding:0;border:0;font-size:1.714286rem;line-height:1}
.dialog-body{overflow-y:auto;overscroll-behavior-y:contain;min-height:0;padding:24px;scrollbar-gutter:stable}
.dialog-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:68px;padding:12px 20px;border-top:1px solid var(--line);font-size:.928571rem}
.dialog-foot>span{font:400 .857143rem/1.5 var(--mono);white-space:nowrap}
.photo-dialog .dialog-foot button{width:44px;padding:0}
.site-menu[open]{display:flex;flex-direction:column;position:fixed;inset:0;width:100%;height:100dvh;max-width:none;max-height:none;margin:0;border:0;overflow-y:auto;overscroll-behavior:contain;padding:env(safe-area-inset-top) max(20px,env(safe-area-inset-right)) env(safe-area-inset-bottom) max(20px,env(safe-area-inset-left))}
.site-menu>.dialog-head{padding:12px 0;border-bottom:0;flex:none}
.menu-content{padding-block:12px 32px;flex:none}
.menu-content>nav{display:flex;flex-direction:column;align-items:stretch}
.menu-content>nav a{min-height:48px;display:flex;align-items:center;color:var(--ink);text-decoration:none;font-size:1.142857rem;line-height:1.5}
.menu-content>nav a[aria-current=page]{color:var(--accent)}
.menu-settings{margin-top:24px;padding-top:24px;border-top:1px solid var(--line)}
/* A short ordered entrance, keeping links readable and usable from the first frame. */
@media(prefers-reduced-motion:no-preference){
 .site-menu[open] .menu-content>nav a{animation:menu-item-enter 180ms cubic-bezier(.22,.7,.3,1) both}
 .site-menu[open] .menu-content>nav a:nth-child(2){animation-delay:10ms}
 .site-menu[open] .menu-content>nav a:nth-child(3){animation-delay:20ms}
 .site-menu[open] .menu-content>nav a:nth-child(4){animation-delay:30ms}
 .site-menu[open] .menu-content>nav a:nth-child(5){animation-delay:40ms}
 .site-menu[open] .menu-content>nav a:nth-child(6){animation-delay:50ms}
 .site-menu[open] .menu-content>nav a:nth-child(7){animation-delay:60ms}
 .site-menu[open] .menu-content>nav a:focus-visible{animation:none}
}
@keyframes menu-item-enter{from{opacity:.78;transform:translateX(8px)}to{opacity:1;transform:none}}
.image-reveal{display:block;position:relative;isolation:isolate;max-width:100%;overflow:hidden}
.image-reveal>img:not(.image-preview){width:100%;height:auto;transition:filter .75s ease,opacity .5s ease}
.image-preview{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1;pointer-events:none;opacity:1;transition:opacity .5s ease}
.image-reveal[data-loading=true]>img:not(.image-preview){filter:blur(8px);opacity:.25}
.image-reveal.is-ready>.image-preview{opacity:0}
.image-reveal.is-failed{background:var(--soft)}
.image-reveal.is-failed>img:not(.image-preview){opacity:0}
.image-reveal.is-failed>.image-preview{opacity:.65;position:absolute;object-fit:contain}
.image-error{display:block;font:400 .928571rem/1.7 var(--ui);padding:12px;color:var(--muted);background:var(--soft)}
.image-reveal>.image-error{position:absolute;bottom:0;left:0;right:0;z-index:2}
@media(max-width:1100px){.header-tools{display:block}.desktop-navigation,.desktop-display-settings{display:none}.site-header{grid-template-columns:minmax(0,1fr) auto;min-height:76px;gap:12px;padding-top:0}.mobile-menu-trigger:not([hidden]){display:inline-flex;align-items:center;gap:8px;border:0;padding-inline:8px}.menu-fallback{display:block;grid-column:1/-1}.menu-fallback>summary{min-height:44px;display:flex;align-items:center;justify-content:flex-end;cursor:pointer;list-style:none}.menu-fallback>summary::-webkit-details-marker{display:none}.menu-fallback nav{display:flex;flex-direction:column}.menu-fallback nav a{min-height:44px;display:flex;align-items:center;color:var(--ink)}.menu-fallback>.display-options{padding-block:20px}.menu-fallback:not([open]){grid-column:2;grid-row:1}.menu-fallback[open]{padding-bottom:24px}}
@media(max-width:1023px){:root{--gutter:28px;--columns:8}.site-footer{padding-bottom:32px}}
@media(max-width:700px){:root{--gutter:20px;--columns:6;--body-size:13px}html[data-size=large]{--body-size:17px}.site-header{min-height:68px}.site-brand{gap:8px}main.page-frame{padding-top:24px}main>.home-page,main>.about-page{margin-top:-24px}.site-footer{margin-top:32px;padding-block:20px 28px;gap:12px;font-size:.923077rem}.site-footer>div{gap:0 12px}.dialog-head{padding:12px 16px;min-height:64px}.dialog-body{padding:20px 16px}.dialog-foot{padding:12px 16px;gap:8px;min-height:68px}.object-dialog[open]{width:calc(100vw - 24px);max-width:calc(100vw - 24px);max-height:calc(100dvh - 24px)}.dialog-foot button{padding:8px;font-size:.923077rem}.photo-dialog-figure img{max-height:65vh}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}.image-reveal[data-loading=true]>img:not(.image-preview){filter:none;opacity:1}.image-preview{display:none!important}}
@media print{@page{margin:16mm}html{font-size:10pt!important;color-scheme:light;--ink:#111;--muted:#444;--bg:white;--soft:white;--line:#bbb;--accent:#111}body{background:white;color:#111}.page-frame{width:100%;margin:0}.site-header,.site-footer,dialog,.skip-link,.menu-fallback{display:none!important}main.page-frame{padding:0}a{color:inherit;text-decoration:none}button{display:none!important}.image-preview,.image-error{display:none!important}.image-reveal>img{opacity:1!important;filter:none!important}h1,h2,h3,h4{break-after:avoid}img,figure{break-inside:avoid}}