/* Personal website: fact source = CV02; presentation = site-presentation.json.
   A small, shared type scale. No external fonts, animated cover, or card grid. */
:root{color-scheme:light;--paper:#fff;--ink:#272b30;--muted:#5f666e;--accent:#325b75;--line:#e4e7ea;--serif:Georgia,"Times New Roman","Songti SC",serif;--sans:-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",Arial,sans-serif}
*{box-sizing:border-box}html{scroll-padding-top:24px;scroll-behavior:auto}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.7 var(--sans);-webkit-font-smoothing:antialiased}p,h1,h2,h3,h4,figure,ol,ul{margin:0}img{max-width:100%;height:auto}a{color:var(--accent);text-decoration:none;text-underline-offset:4px}a:hover{text-decoration:underline}strong{font-weight:600}sup{font-size:.72em;line-height:0;vertical-align:super}button{font:inherit}::selection{background:#e3edf2}a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:5px}.wrap{width:min(1040px,100%);margin-inline:auto;padding-inline:40px}.skip-link{position:fixed;z-index:100;top:-90px;left:15px;padding:10px 15px;background:#fff}.skip-link:focus{top:12px}.anchor-alias{display:block;position:relative;scroll-margin-top:24px}h2{font:600 23px/1.35 var(--sans);letter-spacing:-.4px}h3{font:600 18px/1.45 var(--sans);letter-spacing:-.15px}
.site-topbar{border-bottom:1px solid var(--line)}.site-header{display:flex;align-items:center;justify-content:space-between;gap:26px;min-height:73px;padding-block:18px}.wordmark{font:20px/1.4 var(--serif);color:var(--ink)}.site-nav{display:flex;gap:27px;align-items:center;font-size:13px}.site-nav a{color:var(--muted);padding:6px 0}.site-nav a[aria-current=page]{color:var(--ink);text-decoration:underline;text-underline-offset:7px}.site-footer{display:flex;justify-content:space-between;gap:18px;position:relative;margin-top:45px;padding-block:24px 32px;color:var(--muted);font-size:12px}.site-footer:before{content:"";position:absolute;top:0;left:40px;right:40px;height:1px;background:var(--line)}.site-footer nav{display:flex;flex-wrap:wrap;gap:9px 22px}.site-footer a{color:var(--muted)}
/* Home is an introduction, not another resume. */
.profile{display:grid;grid-template-columns:minmax(0,1fr) 170px;grid-template-areas:'heading portrait' 'copy portrait';gap:16px 58px;align-items:start;padding:43px 0 36px}.profile-heading{grid-area:heading}.profile h1{font:39px/1.22 var(--serif);letter-spacing:-.85px}.profile h1 span{font:20px/1.4 "Songti SC",var(--serif);color:var(--muted);margin-left:12px;letter-spacing:1px;white-space:nowrap}.portrait{grid-area:portrait;margin-top:4px}.portrait img{display:block;width:170px;height:222px;object-fit:cover;object-position:center 55%;border-radius:2px}.profile-copy{grid-area:copy}.biography{font-size:14.5px;line-height:1.8;margin-bottom:13px}.research-lead{font-size:16px;line-height:1.75}.contact-links{display:flex;flex-wrap:wrap;gap:8px 25px;margin-top:18px;font-size:13px}.contact-links a{padding-block:4px}.section-heading{display:flex;align-items:baseline;justify-content:space-between;gap:10px 24px;flex-wrap:wrap}.section-heading>a{font-size:13px}.home-selected{border-top:1px solid var(--line);padding-top:27px}.selected-list{margin-top:3px}.selected-entry{display:grid;grid-template-columns:290px minmax(0,1fr);gap:34px;align-items:center;padding:29px 0;border-bottom:1px solid var(--line)}.selected-entry:last-child{border-bottom:0}.selected-entry h3{font-size:19px;margin-bottom:7px}.selected-entry h3 a{color:var(--ink)}.research-copy{min-width:0}.research-meta{display:flex;flex-wrap:wrap;gap:2px 13px;color:var(--muted);font-size:12px;line-height:1.65;margin-bottom:5px}.research-role{white-space:nowrap}.research-role:before{content:'·';margin-right:13px}.highlight{color:#9a4e36}.research-authors{color:var(--muted);font-size:12.5px;line-height:1.65;margin-bottom:9px}.research-authors strong{color:var(--ink)}.research-summary{font-size:14.5px;line-height:1.75}.research-evidence{color:#515c64;font-size:12.5px;line-height:1.7;margin-top:8px}.research-evidence strong{color:var(--accent)}.research-links{display:flex;flex-wrap:wrap;gap:5px 19px;margin-top:11px;font-size:12px}.research-links a{padding-block:2px;text-decoration:underline;text-decoration-color:#c2d0d9}.research-media{width:100%;min-width:0}.media-link{display:block}.media-frame{display:block;position:relative;overflow:hidden;isolation:isolate}.media-frame img{display:block;width:100%;height:auto}.research-media figcaption{font-size:10.5px;line-height:1.5;color:var(--muted);margin-top:9px}.news-section{border-top:1px solid var(--line);padding-top:27px;margin-top:6px}.news-section h2{margin-bottom:19px}.news{display:grid;grid-template-columns:40px minmax(0,1fr);gap:11px 23px;font-size:13px;line-height:1.85;margin:0}.news dt{color:var(--muted);font-variant-numeric:tabular-nums}.news dd{margin:0}
/* Research is one complete, always-visible record. */
.page-heading{padding:37px 0 0;margin-bottom:25px}.page-heading h1{font:35px/1.25 var(--serif);letter-spacing:-.55px}.page-heading>p{max-width:820px;font-size:15px;line-height:1.8;margin-top:17px;color:#505960}.section-links{display:flex;flex-wrap:wrap;gap:8px 25px;margin-bottom:34px;font-size:13px}.section-links a{text-decoration:underline;text-decoration-color:#c2d0d9}.publication-group{margin-top:28px}.publication-group+.publication-group{margin-top:44px;border-top:1px solid var(--line);padding-top:30px}.publication-group h2{font-size:22px}.section-note{font-size:12px;color:var(--muted);line-height:1.6;margin:11px 0 2px}.publication-list{list-style:none;padding:0}.publication-entry{padding:26px 0;border-bottom:1px solid var(--line);scroll-margin-top:27px}.publication-entry:last-child{border-bottom:0}.publication-layout{display:grid;grid-template-columns:218px minmax(0,1fr);gap:30px;align-items:center}.text-only .publication-layout{display:block}.pub-title{font-size:17px;line-height:1.5;margin-bottom:7px}.pub-title a{color:var(--ink)}.publication-entry .research-authors{font-size:12.5px}.publication-entry .research-summary{font-size:14px}.publication-entry .research-media figcaption{font-size:10px}.collaborative-papers .publication-entry{padding:21px 0}.collaborative-papers .research-authors{margin-bottom:0}.collaborative-papers .pub-title{font-size:16px}.collaborative-papers .research-links{margin-top:7px}.publication-entry:target{background:#f8fafb;outline:1px solid #d9e2e8;outline-offset:8px}
/* Resume separates appointments, degrees and awards. */
.resume-heading{display:flex;align-items:baseline;justify-content:space-between;gap:14px 30px;flex-wrap:wrap;margin-bottom:15px}.download-links{display:flex;gap:20px;font-size:13px}.download-links a{text-decoration:underline;text-decoration-color:#c2d0d9}.resume-intro{font-size:14px;color:var(--muted);margin-bottom:29px}.resume-intro a{white-space:nowrap}.resume-section{display:grid;grid-template-columns:184px minmax(0,1fr);gap:35px;border-top:1px solid var(--line);padding:29px 0}.resume-section>h2{font-size:19px}.experience-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px;margin-bottom:25px}.experience-row:last-child{margin-bottom:0}.experience-row h3{font-size:16px;line-height:1.5;margin-bottom:4px}.position{font-size:14px;line-height:1.7;margin-bottom:6px}.detail{font-size:12.5px;line-height:1.8;color:var(--muted)}.dates{font-size:12px;text-align:right;line-height:1.75;white-space:nowrap;color:var(--muted);font-variant-numeric:tabular-nums}.skill-line{font-size:14px;line-height:1.9}.skill-line+.skill-line{margin-top:7px}.awards{list-style:none;padding:0;display:grid;gap:11px;font-size:14px;line-height:1.75;color:var(--ink)}
/* About adds personal perspective rather than repeating the CV. */
.about-essay{max-width:748px;margin-inline:auto}.about-essay .page-heading{margin-bottom:29px}.about-essay .about-background-link{font-size:13px;margin-top:13px}.about-essay section{padding-top:25px;margin-top:27px;border-top:1px solid var(--line)}.about-essay h2{font-size:21px;margin-bottom:15px}.about-essay section>p{font-size:15px;line-height:1.9;color:#434b52}.about-essay section>p+p{margin-top:14px}.inspiration-figure{margin-top:23px;max-width:430px}.inspiration-figure img{display:block;width:100%;height:auto}.inspiration-figure figcaption{font-size:10.5px;line-height:1.7;color:var(--muted);margin-top:9px}
.figure-dialog{border:1px solid var(--line);padding:20px;border-radius:2px;max-width:calc(100vw - 30px);max-height:calc(100dvh - 30px);width:max-content;background:var(--paper);color:var(--ink)}.figure-dialog::backdrop{background:rgba(30,38,43,.65)}.dialog-bar{display:flex;align-items:center;justify-content:space-between;gap:30px;margin-bottom:15px}.dialog-bar p{font-size:15px}.figure-close{border:0;background:none;color:var(--accent);cursor:pointer;padding:8px}.figure-dialog-image{display:block;max-width:min(1120px,calc(100vw - 75px));max-height:calc(100dvh - 180px);object-fit:contain;width:auto;height:auto}.figure-dialog-caption{max-width:950px;font-size:12px;color:var(--muted);margin-top:12px}
@media(max-width:800px){.wrap{padding-inline:28px}.profile{column-gap:32px;grid-template-columns:minmax(0,1fr) 140px}.profile h1{font-size:35px}.profile h1 span{display:block;margin:7px 0 0;font-size:18px}.portrait img{width:140px;height:185px}.selected-entry{grid-template-columns:230px minmax(0,1fr);gap:26px}.publication-layout{grid-template-columns:178px minmax(0,1fr);gap:25px}.resume-section{grid-template-columns:145px minmax(0,1fr);gap:27px}.experience-row{grid-template-columns:1fr;gap:8px}.dates{text-align:left}.dates br{display:none}.dates span:before{content:' · '}.site-footer:before{left:28px;right:28px}}
@media(max-width:600px){body{font-size:15px}.wrap{padding-inline:23px}.site-header{gap:8px;flex-wrap:wrap;padding-block:17px 11px}.wordmark{font-size:19px}.site-nav{width:100%;gap:26px;font-size:12px}.site-nav a{padding-block:7px}.profile{grid-template-columns:minmax(0,1fr) 89px;grid-template-areas:'heading portrait' 'copy copy';gap:20px 20px;padding:29px 0 29px}.profile-heading{align-self:center}.profile h1{font-size:32px}.profile h1 span{font-size:18px;margin-top:10px}.portrait{margin:0}.portrait img{width:89px;height:119px}.biography{font-size:14px;line-height:1.8}.research-lead{font-size:15px;line-height:1.8}.contact-links{gap:8px 20px;font-size:12px;margin-top:15px}.home-selected{padding-top:24px}.section-heading{gap:7px 14px}h2{font-size:21px}.section-heading>a{font-size:12px}.selected-entry{grid-template-columns:minmax(0,1fr);gap:18px;padding-block:25px}.selected-entry .research-copy{grid-row:1}.selected-entry .research-media{grid-row:2;width:min(100%,345px)}.selected-entry h3{font-size:18px}.research-summary{font-size:14px}.research-evidence{font-size:12px}.research-authors,.research-meta{font-size:12px}.research-links{font-size:12px;gap:6px 19px}.research-links a{padding-block:4px}.research-media figcaption{font-size:10.5px}.news-section{padding-top:24px}.news{grid-template-columns:35px minmax(0,1fr);gap:11px 15px;font-size:12px}.page-heading{padding-top:29px;margin-bottom:23px}.page-heading h1{font-size:31px}.page-heading>p{font-size:14px;line-height:1.8}.section-links{font-size:12px;gap:8px 16px;margin-bottom:28px}.publication-group h2{font-size:20px}.section-note{font-size:11px}.publication-layout{display:block}.publication-layout .research-media{width:min(100%,315px);margin-bottom:18px}.publication-entry .pub-title{font-size:16px}.publication-entry .research-authors{font-size:12px}.publication-entry{padding-block:24px}.collaborative-papers .pub-title{font-size:15px}.resume-heading{margin-bottom:14px}.download-links{font-size:12px}.resume-intro{font-size:13px;line-height:1.9}.resume-intro a{white-space:normal}.resume-section{grid-template-columns:1fr;gap:18px;padding:25px 0}.resume-section>h2{font-size:19px}.position,.skill-line,.awards{font-size:13.5px}.experience-row h3{font-size:16px}.detail{font-size:12px}.about-essay section>p{font-size:14px}.about-essay h2{font-size:20px}.inspiration-figure{max-width:360px}.site-footer{margin-top:35px;flex-wrap:wrap;font-size:11px;gap:12px}.site-footer:before{left:23px;right:23px}.site-footer nav{gap:9px 19px}}
@media(max-width:360px){.wrap{padding-inline:19px}.site-nav{gap:22px}.profile h1{font-size:28px}.profile{column-gap:14px}.site-footer:before{left:19px;right:19px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important}}
@media print{body{font-size:11pt;color:#000}.wrap{width:100%;padding:0}.site-topbar,.site-footer,.skip-link,.contact-links,.section-links,.download-links,dialog{display:none}.profile,.page-heading{padding-top:0}.selected-entry,.publication-entry,.resume-section{break-inside:avoid}a{color:inherit}.publication-group{margin-top:20px}}

/* Combined Home/Research: two introduction paragraphs, one research record. */
.profile{grid-template-areas:'heading portrait' 'biography portrait' 'interests interests' 'contacts contacts';column-gap:48px;row-gap:16px;padding-bottom:32px}
.profile-copy{display:contents}
.biography{grid-area:biography;margin:0;font-size:15px;line-height:1.8}
.research-lead{grid-area:interests;font-size:15px;line-height:1.8}
.profile .contact-links{grid-area:contacts;margin-top:0}
.research-record{border-top:1px solid var(--line);padding-top:28px;scroll-margin-top:24px}
.research-heading{margin-bottom:13px}
.research-heading h2{font-size:24px}
.research-heading h1{font:35px/1.25 var(--serif);letter-spacing:-.55px}
.research-record .section-links{margin-bottom:22px}
.publication-group-title{font:600 20px/1.4 var(--sans);letter-spacing:-.25px}
.research-record .publication-group:first-child{margin-top:22px}
.legacy-notice{font-size:14px;margin:12px 0 18px;color:var(--muted)}
body[data-page=research] .research-record,body[data-page=publications] .research-record{border-top:0;padding-top:37px}
.news-section{margin-top:24px}
@media(max-width:800px){.profile{column-gap:32px}}
@media(max-width:600px){.profile{grid-template-areas:'heading portrait' 'biography biography' 'interests interests' 'contacts contacts';column-gap:20px;row-gap:18px;padding:29px 0}.biography,.research-lead{font-size:14px;line-height:1.8}.research-heading h2{font-size:22px}.publication-group-title{font-size:18px}.research-record{padding-top:24px}.research-record .section-links{gap:6px 18px}.publication-layout .research-media{width:min(100%,315px)}}

/* Resume lives below the homepage research record; navigation stays reachable. */
:root{--navigation-height:74px}
html{scroll-padding-top:calc(var(--navigation-height) + 16px)}
.site-topbar{position:sticky;top:0;z-index:20;background:var(--paper)}
.site-nav a[aria-current=location]{color:var(--ink);text-decoration:underline;text-underline-offset:7px}
.resume-record{margin-top:40px;padding-top:28px;border-top:1px solid var(--line);scroll-margin-top:16px}
.resume-record>.resume-heading{margin-bottom:18px}
.resume-record>.resume-heading h2{font-size:24px}
.resume-record>.resume-heading h1{font:35px/1.25 var(--serif);letter-spacing:-.55px}
.resume-record>.section-links{margin-bottom:4px}
.resume-section{scroll-margin-top:16px}
.resume-section>h2,.resume-section>h3{font-size:19px;font-weight:600;line-height:1.45;letter-spacing:-.15px}
.experience-row h3,.experience-row h4{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:4px}
.resume-record .resume-section:first-child{border-top:0}
body[data-page=resume] .resume-record{border-top:0;margin-top:0;padding-top:37px}
@media(max-width:600px){:root{--navigation-height:103px}.resume-record{margin-top:30px;padding-top:24px}.resume-record>.resume-heading h2{font-size:22px}.resume-record>.section-links{gap:7px 18px}}
@media print{html{scroll-padding-top:0}.resume-record{margin-top:25px}}

/* Research navigation and an inline, accessible original robot demo. */
.video-frame{aspect-ratio:16/9;background:#111;overflow:hidden}
.research-video{display:block;width:100%;height:100%;object-fit:contain}
.research-video:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
@media(max-width:360px){.site-nav{gap:19px}}