:root{
  --background:#f5f6f7;
  --surface:#fafbfc;
  --ink:#363c3f;
  --secondary:#555f63;
  --muted:#626b6f;
  --blue:#466777;
  --line:#e1e5e8;
  --line-strong:#b8c2c7;
  --wash:#eef1f3;
  --review:#79664b;
  --width:1040px
}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:85px}body{margin:0;background:var(--background);color:var(--ink);font-family:Arial,"Helvetica Neue",Helvetica,sans-serif;font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:var(--blue);text-decoration:none;text-underline-offset:4px}a:hover{text-decoration:underline}button{font:inherit;cursor:pointer}a:focus-visible,button:focus-visible{outline:2px solid var(--blue);outline-offset:5px}img,video{display:block;max-width:100%}h1,h2,h3,h4,p,figure{margin:0}strong{font-weight:600}.page,.header-inner{width:min(var(--width),calc(100% - 64px));margin-inline:auto}.site-header{border-bottom:1px solid var(--line);background:var(--background)}.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:73px}.wordmark{font-size:17px;font-weight:600;color:var(--ink);letter-spacing:-.4px}.wordmark span{color:var(--blue)}nav{display:flex;gap:27px;font-size:13px}nav a{color:var(--secondary)}.profile{display:grid;grid-template-columns:minmax(0,1fr) 190px;gap:65px;padding:59px 0 45px;align-items:start}h1{margin-bottom:22px;font-size:38px;line-height:1.25;font-weight:600;letter-spacing:-1.2px}h1 span{font-size:22px;letter-spacing:2px;color:var(--muted);font-weight:400;margin-left:12px;white-space:nowrap}.position{margin:10px 0 22px;color:var(--secondary);font-size:15px}.bio{max-width:78ch;margin:0 0 18px;font-size:16px;line-height:1.85;text-wrap:pretty}.profile .resource-links{margin-top:22px}.research-interests{margin-top:24px;color:var(--secondary);font-size:13px;line-height:1.9}.research-interests strong{color:var(--ink);font-size:12px}.portrait{padding-top:10px}.portrait-frame{position:relative;width:190px;aspect-ratio:1;overflow:hidden;border-radius:3px}.portrait-frame img{position:absolute;max-width:none;width:115.535714%;height:114.196429%;left:0;top:0;object-fit:fill}.portrait figcaption{margin-top:13px;color:var(--muted);font-size:11px;text-align:center}.portrait figcaption span{padding-left:3px}.resource-links{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:13px;font-weight:600;align-items:center}.resource-links a{white-space:nowrap}.section{margin-top:30px}.section-heading{display:flex;justify-content:space-between;align-items:baseline;gap:20px;margin-bottom:22px;border-bottom:1px solid var(--line);padding-bottom:12px}h2{font-size:23px;font-weight:600;letter-spacing:-.5px;line-height:1.35}.section-note,.section-link{font-size:12px;color:var(--muted);flex-shrink:0}.section-link{color:var(--blue)}.dated-list{list-style:none;margin:0;padding:0}.dated-list li{display:grid;grid-template-columns:112px 1fr;gap:15px;margin-bottom:12px}.dated-list time,.list-date{font-size:12px;color:var(--muted);padding-top:2px}.news{margin-top:0;margin-bottom:47px}.news-list{font-size:14px}.publication-group{margin-top:25px}.publication{display:grid;grid-template-columns:340px minmax(0,1fr);gap:32px;padding:24px 0 28px;border-bottom:1px solid var(--line);align-items:center}.publication-group:last-child .publication:last-child{border-bottom:0}.paper-preview{width:340px;min-width:0;border:1px solid var(--line);border-radius:3px;overflow:hidden}.image-preview{display:flex;flex-direction:column;background:var(--surface);padding:0;text-align:left;color:var(--muted)}.image-preview img{width:100%;height:auto;object-fit:contain;padding:7px}.preview-caption{display:flex;justify-content:space-between;align-items:center;width:100%;padding:6px 11px;font-size:10px;border-top:1px solid var(--line);background:var(--wash)}.image-preview:hover{border-color:var(--line-strong)}.preview-caption span{font-size:13px}.video-preview{position:relative;background:var(--wash)}.video-preview video{width:100%;height:auto;object-fit:contain;background:#30383a}.video-toolbar{display:flex;justify-content:space-between;align-items:center;padding:4px 10px;font-size:10px;color:var(--muted);gap:10px;background:var(--wash)}.video-toggle{font-size:10px;color:var(--blue);background:none;border:0;padding:3px 2px;min-width:38px;font-weight:600}.video-error{font-size:11px;color:var(--review);padding:0 8px;background:var(--surface);display:block}.video-error:empty{display:none}.pending-preview{height:204px;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--wash);color:var(--muted);gap:6px}.pending-preview svg{width:62px;stroke:var(--line-strong);stroke-width:1;margin-bottom:8px}.pending-preview>span{font-size:12px}.pending-preview small{font-size:10px;color:var(--muted)}.venue{font-size:11px;font-weight:600;color:var(--blue);margin-bottom:7px;line-height:1.6}.under-review{color:var(--review)}.paper-info h4{font-size:17px;font-weight:600;line-height:1.5;letter-spacing:-.15px}.authors{font-size:12px;margin-top:9px;color:var(--secondary);line-height:1.7}.authors strong{color:var(--ink)}.pending-copy{color:var(--muted);font-size:11px}.paper-summary{font-size:14px;color:var(--muted);margin-top:9px;line-height:1.7}.paper-info .resource-links{margin-top:13px;font-size:12px;gap:18px}.section#thesis{margin-top:51px}.thesis{display:grid;grid-template-columns:150px 1fr;gap:37px;align-items:center;padding:7px 0 10px}.thesis-cover{background:var(--surface);border:1px solid var(--line);padding:7px;display:block}.thesis-cover img{width:100%;height:auto}.thesis-info h3{font-size:20px;letter-spacing:-.3px;font-weight:600;line-height:1.4}.chinese-title{font-size:14px;color:var(--muted);margin-top:5px;letter-spacing:.8px}.thesis-meta{font-size:12px;color:var(--muted);margin-top:13px}.thesis-award{font-size:12px;color:var(--blue);font-weight:600;margin-top:8px}.thesis-info>p:last-of-type{font-size:13px;color:var(--muted);margin-top:11px;line-height:1.8}.thesis-info .resource-links{font-size:12px;margin-top:16px}.link-detail{font-size:10px;font-weight:400;color:var(--muted);padding-left:5px}.section#honors{margin-top:43px}.honors-list{font-size:14px}.site-footer{border-top:1px solid var(--line);margin-top:50px;padding-top:22px;padding-bottom:28px;display:flex;gap:24px;align-items:center;font-size:11px;color:var(--muted)}.site-footer a{margin-left:auto}.skip-link{position:fixed;left:15px;top:-90px;z-index:100;background:var(--surface);padding:9px 15px;box-shadow:0 0 0 1px var(--blue)}.skip-link:focus{top:10px}dialog{background:var(--surface);border:0;border-radius:6px;padding:20px;max-width:min(1300px,94vw);width:max-content;max-height:94vh;color:var(--ink);box-shadow:0 10px 70px #303b3d26}dialog::backdrop{background:#303b3d99}body.dialog-open{overflow:hidden}.dialog-toolbar{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted);gap:30px;margin-bottom:18px}.dialog-close{background:var(--wash);border:0;border-radius:3px;font-size:12px;padding:6px 12px;color:var(--ink)}dialog img{max-width:100%;max-height:65vh;object-fit:contain;margin:auto}dialog p{font-size:12px;max-width:800px;margin-top:18px}dialog>a{display:inline-block;font-size:11px;margin-top:8px}
@media(min-width:1300px){.profile{padding-top:65px}.page,.header-inner{width:1040px}}
@media(max-width:800px){.page,.header-inner{width:calc(100% - 40px)}.profile{grid-template-columns:minmax(0,1fr) 145px;gap:30px;padding-top:36px}.portrait-frame{width:145px}h1{font-size:32px}h1 span{display:block;margin:8px 0 0;font-size:18px}.publication{grid-template-columns:260px minmax(0,1fr);gap:23px}.paper-preview{width:260px}.paper-info h4{font-size:15px}.video-preview video{height:auto}.resource-links{gap:8px 15px}}
@media(max-width:600px){body{font-size:14px}.page,.header-inner{width:calc(100% - 36px)}.header-inner{min-height:61px}.wordmark{font-size:14px}nav{gap:14px;font-size:11px}.profile{grid-template-columns:minmax(0,1fr) 96px;gap:18px;padding:32px 0}.profile-copy{display:contents}.profile h1{grid-column:1;grid-row:1;font-size:28px;margin:0;align-self:center}.profile h1 span{font-size:16px;margin-top:6px}.position{grid-column:1 / -1;grid-row:2;font-size:12px;margin:0 0 3px}.profile .bio{grid-column:1 / -1;margin:0;font-size:15px}.portrait{grid-column:2;grid-row:1;padding:0;align-self:center}.portrait-frame{width:96px}.portrait figcaption{display:none}.profile .resource-links{grid-column:1 / -1;margin-top:2px;font-size:12px;gap:18px}.research-interests{grid-column:1 / -1;margin-top:0;font-size:12px}.section-heading{margin-bottom:18px;padding-bottom:10px;gap:10px}h2{font-size:21px}.section-note,.section-link{font-size:10px}.dated-list li{grid-template-columns:77px 1fr;gap:12px;margin-bottom:13px}.dated-list time,.list-date{font-size:11px}.news-list,.honors-list{font-size:13px}.news{margin-bottom:34px}.publication-group{margin-top:21px}.publication{grid-template-columns:1fr;gap:17px;padding:23px 0 27px}.paper-preview{width:100%}.image-preview img{padding:7px}.video-preview video{height:auto;max-height:360px}.paper-info h4{font-size:17px;line-height:1.5}.venue{font-size:11px;margin-bottom:5px}.authors{font-size:12px}.paper-summary{font-size:14px}.paper-info .resource-links{font-size:12px}.thesis{grid-template-columns:88px 1fr;gap:19px;align-items:start}.thesis-info h3{font-size:17px}.thesis-info .venue{font-size:9px}.chinese-title{font-size:12px;letter-spacing:0}.thesis-meta{font-size:11px}.thesis-award{font-size:11px}.thesis-info>p:last-of-type{font-size:12px}.thesis-info .resource-links{gap:10px;font-size:11px}.link-detail{display:none}.site-footer{flex-wrap:wrap;gap:7px 18px;margin-top:34px;font-size:10px}.site-footer a{margin-left:auto}dialog{padding:14px;max-width:96vw}dialog p{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Context for the earlier scene-understanding work. */
.group-description{font-size:12px;color:var(--muted);line-height:1.7;margin:5px 0 8px}.profile + #publications{margin-top:0}

/* A quiet, neutral reading palette; original research media retain their colors. */
::selection{background:#dfe7ec;color:var(--ink)}

/* Portrait: a gentle 1120px square at (0, 0) in the 1294x1279 original; both image layers share the same framing. */

/* Display only the repaired corner; the rest, including the face, is the original photograph. */
.portrait-frame .portrait-watermark-patch{pointer-events:none;clip-path:polygon(84% 85%,100% 85%,100% 100%,75% 100%,75% 90%,84% 90%);mask-image:linear-gradient(to right,transparent 75%,#000 76.8%),linear-gradient(to bottom,transparent 85%,#000 86.5%);mask-composite:intersect}

.section#academic-service{margin-top:43px}.service-list{font-size:14px;color:var(--secondary)}.service-list p+p{margin-top:8px}.service-list strong{color:var(--ink)}

.competition-awards{margin-top:20px}.competition-award{display:grid;grid-template-columns:160px minmax(0,1fr);gap:26px;align-items:center;padding:16px 0;border-top:1px solid var(--line)}.competition-photo{padding:0;border:1px solid var(--line);background:var(--wash);color:var(--muted);border-radius:3px;overflow:hidden;width:100%}.competition-photo img{width:100%;height:auto;aspect-ratio:1;object-fit:cover;object-position:50% 50%}.competition-photo span{display:block;padding:5px 10px;border-top:1px solid var(--line);font-size:10px;text-align:left}.competition-copy h3{font-size:17px;line-height:1.5;font-weight:600}.competition-achievement{margin-top:9px;color:var(--blue);font-size:13px;font-weight:600}.competition-watch{display:inline-block;margin-top:10px;font-size:12px;font-weight:600}#video-dialog{width:min(1000px,94vw)}#video-dialog video{display:block;width:100%;max-height:72vh;background:#16191b}.dialog-video-error{font-size:13px}@media(max-width:600px){.competition-award{grid-template-columns:1fr;gap:12px}.competition-photo{max-width:180px}}

.portrait .portrait-name{padding-left:0}.portrait-interests{margin-top:18px;line-height:1.9;font-size:12px;text-align:left}.portrait-interests strong{display:block;color:var(--ink);margin-bottom:3px}.portrait .portrait-interests span{display:block;padding-left:0}.competition-award:first-child .competition-photo img{object-position:50% 65%}@media(max-width:600px){.portrait figcaption{display:block;font-size:9px;margin-top:8px}.portrait-interests{font-size:10px;margin-top:12px;line-height:1.7}.portrait{align-self:start}.profile h1{align-self:start}.portrait .portrait-name span{display:block;padding-left:0}}


/* Research themes remain readable as text, with a restrained visual highlight. */
.publication-meta{display:flex;align-items:center;flex-wrap:wrap;gap:6px 10px;margin-bottom:8px}
.publication-meta .venue{margin:0}
.research-focus{display:inline-block;border:1px solid #d7e1e8;border-radius:3px;background:#e8eef2;color:var(--blue);font-size:11px;font-weight:600;line-height:1.5;padding:2px 8px}
.publication-group-heading{display:flex;flex-wrap:wrap;align-items:flex-end;gap:10px 26px;margin-bottom:8px}
.publication-group-heading>h3{margin:0;font-size:17px;font-weight:700;line-height:1.5;letter-spacing:0;color:var(--ink)}
.publication-group+.publication-group{margin-top:38px}
.research-path{display:inline-flex;align-items:flex-end;gap:9px;max-width:100%;margin:0;color:var(--secondary)}
.path-node{font-size:13px;font-weight:600;line-height:20px}
.path-transition{display:flex;flex-direction:column;align-items:center;width:78px;font-size:11px;font-weight:600;line-height:1.4;gap:2px}
.path-arrow{display:block;width:100%;height:20px;fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.path-transition:hover{text-decoration:none}.path-transition:hover>span{text-decoration:underline}
.path-cycle{display:block;width:180px;flex:none}
.cycle-diagram{display:block;width:100%;height:auto;overflow:visible}
.cycle-diagram path{fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}
.cycle-diagram text{fill:currentColor;text-anchor:middle;font-family:inherit;font-weight:600}
.cycle-node{font-size:13px}.cycle-paper{font-size:11px}
.path-cycle:hover .cycle-paper{text-decoration:underline}
.research-focus-cycle{padding:2px 5px}
.cycle-diagram-small{width:110px;height:36px}
.cycle-diagram-small .cycle-node{font-size:11px}
.honors-list{list-style:none;margin:0;padding:0}
.honors-list li{margin-bottom:10px}
@media(max-width:600px){.path-node{font-size:13px}.path-transition{font-size:10px;width:72px}.path-cycle{width:150px}.path-cycle .cycle-node{font-size:15.6px}.path-cycle .cycle-paper{font-size:12px}}

/* The inline teaser can omit its footer; the full original opens on demand. */
.video-enlarge{display:block;position:relative}.video-enlarge-hint{position:absolute;right:8px;top:8px;padding:3px 7px;border-radius:3px;background:#fafbfce8;color:var(--blue);font-size:10px;font-weight:600;pointer-events:none}.video-enlarge:hover .video-enlarge-hint{text-decoration:underline}#video-dialog video{object-fit:contain}
.video-only .video-toolbar{position:absolute;right:8px;bottom:8px;padding:0;background:#fafbfce8;border-radius:3px}.video-only .video-toolbar>span{display:none}.video-only .video-toggle{padding:3px 7px}

/* Labels stay attached to the two square-preview panels, including on mobile. */
.video-labeled{background:#30383a}
.video-panel-frame{position:relative;display:block;width:100%;margin-inline:auto}
.video-panel-label{position:absolute;left:0;padding:2px 6px;border-radius:2px;background:#193b50;color:#f5f8fa;font-size:8px;font-weight:400;line-height:1.5;white-space:nowrap;pointer-events:none}
.video-panel-label-top{top:0}
.video-panel-label-bottom{top:50%}
@media(max-width:600px){.video-panel-frame{max-width:360px}}

.misc-copy {
  font-size: 14px;
  line-height: 1.85;
  color: var(--secondary);
}