:root{
  --blue:#1772d0;
  --blue-dark:#0e5aa6;
  --text:#222;
  --muted:#666;
  --soft:#8b8b8b;
  --line:#e8e8e8;
  --line-strong:#d9d9d9;
  --bg:#fff;
  --chip:#f7f8fa;
  --code:#f7f7f8;
  --max:1100px;
  --page-pad:50px;
  --radius:5px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{
  margin:0;
  color:var(--text);
  background:var(--bg);
  font-family:Arial, Helvetica, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size:15px;
  line-height:1.58;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--blue-dark);text-decoration:underline}
button,input{font:inherit}
button{color:inherit}
img{max-width:100%;display:block}
::selection{background:#dceeff;color:#123a61}

.site-shell{
  width:min(calc(100% - (var(--page-pad) * 2)),var(--max));
  margin:0 auto;
  padding:45px 0 70px;
}
.profile-header{
  display:grid;
  grid-template-columns:150px minmax(0,1fr);
  gap:28px;
  align-items:start;
  padding-bottom:28px;
  border-bottom:1px solid var(--line);
  margin-bottom:33px;
}
.profile-photo-wrap{
  width:150px;
  aspect-ratio:1;
  overflow:hidden;
  border-radius:50%;
  background:#f1f3f5;
  border:1px solid #ececec;
  position:relative;
}
.profile-photo{
  width:100%;height:100%;object-fit:cover;object-position:center 24%;
  transition:opacity .2s ease;
}
.profile-photo-wrap.is-fallback::after{
  content:"JC";position:absolute;inset:0;display:grid;place-items:center;
  color:#b8c2cc;font-size:52px;font-weight:700;letter-spacing:-3px;background:#f4f6f8;
}
.profile{min-width:0}
.profile-name{margin:0;font-size:28px;line-height:1.16;font-weight:700;letter-spacing:-.25px}
.profile-name-cn{display:inline-block;margin-left:10px;color:#4a4a4a;font-size:20px;font-weight:500}
.profile-title{margin:10px 0 0;color:#444;font-size:14px;line-height:1.45}
.profile-affiliation{margin:5px 0 0;color:#666;font-size:13.5px;line-height:1.5}
.profile-meta{margin-top:13px;display:flex;flex-wrap:wrap;gap:5px 22px;color:#555;font-size:13.5px}
.meta-row{display:flex;gap:8px;align-items:flex-start}
.meta-row svg{flex:0 0 15px;width:15px;height:15px;margin-top:3px;color:#6d7782}
.meta-row a{word-break:break-word}
.profile-actions{display:flex;flex-wrap:wrap;gap:7px 16px;margin-top:14px}
.icon-link,.utility-btn{
  appearance:none;border:0;background:transparent;border-radius:0;
  display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:25px;
  padding:2px 0;color:#3d4852;cursor:pointer;font-size:12.5px;line-height:1;
  transition:border-color .15s ease, color .15s ease, background .15s ease, transform .15s ease;
}
.icon-link svg,.utility-btn svg{width:14px;height:14px;flex:0 0 14px}
.icon-link:hover,.utility-btn:hover{background:transparent;color:var(--blue);text-decoration:none}
.icon-link:active,.utility-btn:active{transform:translateY(1px)}
.profile-note{display:none}

.main{min-width:0;padding-top:1px}
.intro{font-size:15.5px;line-height:1.68}
.intro p{margin:0 0 13px}
.intro strong{font-weight:700}
.section{margin-top:33px;scroll-margin-top:20px}
.section-title{
  font-family:Georgia, "Times New Roman", serif;
  font-size:25px;line-height:1.2;font-weight:700;letter-spacing:0;
  margin:0 0 15px;color:#1c1c1c;
}
.section-title-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:15px}
.section-title-row .section-title{margin:0}
.section-subaction{color:#777;font-size:12.5px;white-space:nowrap}
.section-subaction:hover{color:var(--blue)}

.openings{
  margin-top:13px;padding:10px 13px 11px;border-left:3px solid #a9c8e8;background:#fafcff;
  color:#404040;font-size:14px;
}
.openings strong{color:#222}
.openings p{margin:0}

.news-list{display:grid;gap:6px}
.news-item{display:grid;grid-template-columns:72px 1fr;gap:12px;align-items:start;font-size:14.2px;line-height:1.48}
.news-date{color:#777;font-variant-numeric:tabular-nums;white-space:nowrap}
.news-text{min-width:0}
.news-tag{display:inline-block;margin-right:5px;color:#777;font-size:11.5px;border:1px solid #ddd;border-radius:3px;padding:0 4px;line-height:17px;vertical-align:1px}
.news-item.is-extra{display:none}
.news-list.expanded .news-item.is-extra{display:grid}
.inline-toggle{
  margin-top:9px;appearance:none;border:0;background:transparent;padding:0;color:var(--blue);
  cursor:pointer;font-size:13px;display:inline-flex;align-items:center;gap:4px;
}
.inline-toggle svg{width:13px;height:13px}
.inline-toggle:hover{text-decoration:underline}

.pub-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;margin:0 0 20px;padding-bottom:12px;border-bottom:1px solid #f0f0f0}
.pub-modes{display:flex;flex-wrap:wrap;gap:7px}
.pub-toolbar .search-wrap{margin-left:auto;position:relative;width:min(290px,100%)}
.pub-toolbar input{
  width:100%;height:32px;border:1px solid #ddd;border-radius:4px;padding:5px 29px 5px 10px;
  color:#333;background:#fff;outline:none;font-size:12.5px;
}
.pub-toolbar input:focus{border-color:#9cbde0;box-shadow:0 0 0 2px rgba(23,114,208,.09)}
.pub-toolbar .search-wrap svg{position:absolute;right:8px;top:8px;width:14px;height:14px;color:#929292;pointer-events:none}
.pill-btn{
  appearance:none;border:1px solid #dcdfe3;background:#fff;border-radius:999px;padding:5px 9px;
  color:#555;cursor:pointer;font-size:12px;line-height:1.2;display:inline-flex;align-items:center;gap:5px;
}
.pill-btn svg{width:12px;height:12px}
.pill-btn:hover{border-color:#b9c5d0;color:var(--blue)}
.pill-btn.is-active{background:#eef6ff;border-color:#b6d4f2;color:#0f63b6}
.text-btn{
  appearance:none;border:0;background:transparent;padding:4px 2px;color:#777;cursor:pointer;
  font-size:12px;line-height:1.2;text-decoration:underline;text-underline-offset:2px;
}
.text-btn:hover{color:var(--blue)}
.text-btn:disabled{color:#b5b5b5;cursor:default;text-decoration:none}
.pub-status{flex:1 1 100%;color:#777;font-size:12.5px;line-height:1.35}

.pub-year{font-family:Georgia, "Times New Roman", serif;font-size:19px;font-weight:700;margin:27px 0 13px;color:#333;line-height:1.25}
.pub-year:first-child{margin-top:0}
.pub-list{display:grid;gap:25px}
.pub-item{
  display:grid;grid-template-columns:220px minmax(0,1fr);gap:25px;align-items:start;
  padding:0 0 25px;border-bottom:1px solid #f0f0f0;
}
.pub-item.no-pub-image{grid-template-columns:minmax(0,1fr)}
.pub-item:last-child{border-bottom:0}
.pub-thumb{
  width:220px;aspect-ratio:1.58/1;position:relative;border-radius:3px;overflow:hidden;
  border:1px solid #e7e7e7;background:#f6f6f6;
}
.pub-thumb img{width:100%;height:100%;object-fit:cover;object-position:center}
.pub-thumb.paper-framework img{object-fit:contain;background:#fff;padding:3px}
.pub-thumb-placeholder{
  position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;
  padding:11px;background:linear-gradient(145deg,#eef3f7,#fafafa);color:#61707e;
}
.pub-thumb-placeholder .venue-mini{font-size:10px;text-transform:uppercase;letter-spacing:.08em;color:#8a98a6}
.pub-thumb-placeholder .year-mini{font-size:23px;line-height:1;font-weight:700;color:#8194a6;margin-top:4px}
.pub-thumb-placeholder .title-mini{font-size:10.5px;line-height:1.25;margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pub-thumb.has-image .pub-thumb-placeholder{display:none}
.figure-badge{
  position:absolute;left:5px;bottom:5px;background:rgba(255,255,255,.92);border:1px solid rgba(0,0,0,.09);
  border-radius:3px;padding:2px 4px;font-size:9.5px;color:#666;line-height:1.2;display:none
}
.pub-thumb.is-representative .figure-badge{display:block}
.pub-thumb.is-missing .missing-badge{display:block;color:#8a4b00;background:#fff8ed;border-color:#ead5b4}
.pub-title{font-size:16.5px;line-height:1.38;font-weight:700;margin:0 0 5px;letter-spacing:0}
.pub-title a{color:#222}
.pub-title a:hover{color:var(--blue);text-decoration:none}
.pub-title-cn{margin:0 0 5px;color:#555;font-size:13.5px;line-height:1.45}
.pub-authors{font-size:13.8px;color:#505050;line-height:1.45;margin-bottom:4px}
.pub-authors .me{font-weight:700;color:#222}
.pub-venue{font-size:13.6px;color:#555;line-height:1.42;font-style:italic;margin-bottom:4px}
.pub-venue strong{font-style:normal;color:#333}
.pub-identifiers{display:flex;flex-wrap:wrap;gap:4px 14px;color:#777;font-size:12.3px;line-height:1.45}
.pub-identifiers a{overflow-wrap:anywhere}
.pub-tags{display:flex;flex-wrap:wrap;gap:5px;margin-top:8px}
.tag-chip{display:inline-flex;align-items:center;border:1px solid #e1e4e7;border-radius:999px;padding:2px 7px;color:#66727d;background:#fbfbfc;font-size:11px;line-height:1.25}
.pub-actions{display:flex;flex-wrap:wrap;gap:5px;margin-top:5px}
.action-btn{
  appearance:none;border:1px solid #d8dce0;background:#fff;border-radius:4px;min-height:27px;padding:4px 7px;
  display:inline-flex;align-items:center;gap:4px;color:#4d5964;font-size:11.8px;line-height:1;cursor:pointer;
  transition:background .15s,border-color .15s,color .15s;
}
a.action-btn:hover,.action-btn:hover{background:#f8fbff;border-color:#b7cce2;color:var(--blue);text-decoration:none}
.action-btn svg{width:12px;height:12px}
.action-btn.primary{border-color:#bed7ef;color:#1267b4;background:#fbfdff}
.bibtex-box{display:none;margin-top:9px;background:var(--code);border:1px solid #e5e5e5;border-radius:4px;padding:10px 11px;position:relative}
.bibtex-box.open{display:block}
.bibtex-box pre{margin:0;padding-right:30px;white-space:pre-wrap;overflow-wrap:anywhere;font-family:Consolas,"SFMono-Regular",monospace;font-size:11.2px;line-height:1.45;color:#444}
.copy-bib{position:absolute;right:6px;top:6px;width:26px;height:26px;padding:0}
.pub-empty{padding:24px 0;color:#777;font-size:14px}

.simple-list{display:grid;gap:8px;margin:0;padding:0;list-style:none}
.simple-list li{display:grid;grid-template-columns:91px 1fr;gap:13px;align-items:start;font-size:14px;line-height:1.47}
.simple-list .key{color:#777;font-variant-numeric:tabular-nums}
.simple-list .value{min-width:0}
.simple-list .value strong{font-weight:600}
.simple-list .sub{color:#707070;font-size:12.8px;margin-top:1px}
.compact-bullets{margin:0;padding-left:18px;color:#333}
.compact-bullets li{padding-left:1px;margin:0 0 6px;font-size:14px;line-height:1.48}

.footer{margin-top:40px;padding-top:16px;border-top:1px solid var(--line);color:#8a8a8a;font-size:11.8px;line-height:1.6}
.footer-row{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer a{color:#6f8ca8}

.back-top{
  position:fixed;right:20px;bottom:20px;width:35px;height:35px;border-radius:50%;border:1px solid #d9d9d9;
  background:rgba(255,255,255,.94);display:grid;place-items:center;color:#667;cursor:pointer;opacity:0;pointer-events:none;
  transform:translateY(5px);transition:opacity .18s,transform .18s,background .18s;
  box-shadow:0 2px 8px rgba(0,0,0,.05)
}
.back-top.visible{opacity:1;pointer-events:auto;transform:none}
.back-top:hover{background:#f8fbff;color:var(--blue)}
.back-top svg{width:15px;height:15px}

.toast{position:fixed;left:50%;bottom:23px;transform:translate(-50%,10px);background:#222;color:#fff;border-radius:4px;padding:7px 11px;font-size:12px;opacity:0;pointer-events:none;transition:.18s;z-index:20}
.toast.show{opacity:.93;transform:translate(-50%,0)}

:focus-visible{outline:2px solid rgba(23,114,208,.45);outline-offset:2px}

@media(max-width:850px){
  :root{--page-pad:34px}
  .site-shell{padding-top:32px}
  .profile-header{grid-template-columns:132px minmax(0,1fr);gap:22px}
  .profile-photo-wrap{width:132px}
  .profile-name{font-size:25px}
  .pub-item{grid-template-columns:190px minmax(0,1fr);gap:20px}
  .pub-thumb{width:190px}
}
@media(max-width:680px){
  :root{--page-pad:16px}
  .site-shell{width:min(calc(100% - 32px),640px);padding:22px 0 48px}
  .profile-header{grid-template-columns:104px minmax(0,1fr);gap:16px;padding-bottom:24px;margin-bottom:27px}
  .profile-photo-wrap{width:104px}
  .profile-name{margin-top:1px;font-size:23px}
  .profile-name-cn{margin-left:7px;font-size:17px}
  .profile-title{margin-top:8px}
  .profile-affiliation{font-size:13px}
  .profile-meta{margin-top:10px;gap:4px}
  .section{margin-top:29px}
  .section-title{font-size:22px}
  .pub-toolbar .search-wrap{margin-left:0;flex:1 1 190px}
  .pub-item{grid-template-columns:1fr;gap:12px;padding-bottom:22px}
  .pub-thumb{width:100%;max-width:320px;aspect-ratio:1.65/1}
  .pub-title{font-size:16px}
  .pub-authors,.pub-venue{font-size:12.9px}
  .simple-list li{grid-template-columns:78px 1fr;gap:10px}
}
@media(max-width:500px){
  body{font-size:14.5px}
  .site-shell{width:calc(100% - 26px)}
  .profile-header{grid-template-columns:90px minmax(0,1fr);gap:13px}
  .profile-photo-wrap{width:90px}
  .profile-name{font-size:21px}
  .profile-name-cn{font-size:16px}
  .profile-meta .office-row{display:none}
  .intro{font-size:14.7px}
  .news-item{grid-template-columns:64px 1fr;gap:8px;font-size:13.3px}
  .pub-item{gap:10px}
  .pub-thumb{width:100%;max-width:235px;aspect-ratio:1.72/1}
  .pub-title{font-size:15.5px}
  .action-btn{font-size:11.5px}
  .simple-list li{display:block;margin-bottom:10px}
  .simple-list .key{display:block;margin-bottom:1px;font-size:12px}
  .back-top{right:13px;bottom:13px}
}
@media print{
  .profile-actions,.pub-toolbar,.action-btn,.inline-toggle,.back-top,.toast{display:none!important}
  .site-shell{width:100%;max-width:none;padding:0}
  a{color:inherit;text-decoration:none}
  .pub-item{break-inside:avoid}
  .section{break-inside:auto}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.year-menu-wrap{position:relative}
.year-menu{
  position:absolute;top:34px;left:0;z-index:10;min-width:116px;max-height:230px;overflow:auto;
  display:none;background:#fff;border:1px solid #dcdfe3;border-radius:6px;padding:4px;box-shadow:0 7px 20px rgba(0,0,0,.09)
}
.year-menu.open{display:block}
.year-menu button{appearance:none;border:0;background:transparent;width:100%;text-align:left;border-radius:4px;padding:6px 8px;font-size:12px;cursor:pointer;color:#444}
.year-menu button:hover,.year-menu button.active{background:#f2f7fc;color:var(--blue)}

/* Kai Han-style masthead: navigation, campus backdrop and centered profile panel. */
.site-nav{
  position:sticky;top:0;z-index:30;background:rgba(255,255,255,.98);
  border-bottom:1px solid #e5e8eb;box-shadow:0 1px 8px rgba(19,39,59,.04)
}
.nav-inner{
  width:min(calc(100% - 40px),1040px);min-height:72px;margin:0 auto;
  display:flex;align-items:center;justify-content:center;gap:34px;overflow-x:auto
}
.nav-link{
  flex:0 0 auto;color:#10202b;font-size:17px;font-weight:700;line-height:1;
  padding:27px 0 24px;white-space:nowrap;border-bottom:3px solid transparent;
  transition:color .15s ease,border-color .15s ease;text-decoration:none
}
.nav-link:hover,.nav-link:focus-visible{color:#1b6fae;border-bottom-color:#1b6fae;text-decoration:none}
.nav-link-external::after{content:"↗";font-size:12px;margin-left:4px;vertical-align:3px;color:#6a7b87}
.hero{
  --hero-image:url("assets/images/local/hero-campus.svg");position:relative;isolation:isolate;
  min-height:437px;padding:66px 20px 70px;display:grid;place-items:center;overflow:hidden;
  background-color:#6b9ab1;background-image:linear-gradient(rgba(20,61,86,.08),rgba(15,49,71,.2)),var(--hero-image);
  background-position:center 46%;background-size:cover
}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(10,50,71,.06),transparent 38%,rgba(11,46,63,.12))}
.hero-inner{width:100%;max-width:860px;margin:0 auto}
.hero .profile-header{
  grid-template-columns:205px minmax(0,1fr);gap:38px;align-items:center;
  width:100%;margin:0;padding:36px 43px;border:0;border-radius:24px;
  background:rgba(255,255,255,.87);box-shadow:0 16px 42px rgba(14,45,62,.2);backdrop-filter:blur(5px)
}
.hero .profile-photo-wrap{width:205px;border:4px solid #25323b;box-shadow:0 3px 8px rgba(0,0,0,.1)}
.hero .profile-name{font-size:42px;line-height:1.1;letter-spacing:0;color:#1a2228}
.hero .profile-name-cn{margin-left:12px;font-size:24px;color:#39454d;font-weight:500}
.hero .profile-title{margin-top:13px;font-size:19px;color:#27363f;line-height:1.4}
.hero .profile-affiliation{margin-top:6px;font-size:16px;color:#52616b;line-height:1.45}
.hero .profile-meta{margin-top:10px;color:#394951;font-size:14px}
.hero .office-row{display:none}
.hero .profile-actions{margin-top:21px;gap:11px}
.hero .icon-link,.hero .utility-btn{
  position:relative;width:50px;height:50px;min-height:50px;padding:0;border-radius:50%;
  background:#fff;box-shadow:0 3px 10px rgba(23,62,83,.13);color:#1e6e9c;
  transition:transform .15s ease,background .15s ease,color .15s ease
}
.hero .icon-link:hover,.hero .utility-btn:hover{background:#eaf6ff;color:#0f5f91;transform:translateY(-2px)}
.hero .icon-link svg,.hero .utility-btn svg{width:25px;height:25px}
.hero .icon-link span,.hero .utility-btn span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.hero-no-image{background-image:linear-gradient(135deg,#5e8da4,#b3d1d8 55%,#668e7d)}
.main{padding-top:39px}
.intro{max-width:900px}

@media(max-width:850px){
  .nav-inner{gap:25px}
  .nav-link{font-size:15px}
  .hero .profile-header{grid-template-columns:170px minmax(0,1fr);gap:28px;padding:31px 32px}
  .hero .profile-photo-wrap{width:170px}
  .hero .profile-name{font-size:34px}
  .hero .profile-name-cn{font-size:20px}
  .hero .profile-title{font-size:17px}
}
@media(max-width:680px){
  .site-nav{position:relative}
  .nav-inner{justify-content:flex-start;width:100%;padding:0 16px;gap:25px;min-height:60px}
  .nav-link{font-size:14px;padding:22px 0 19px}
  .hero{min-height:500px;padding:30px 16px 36px;background-position:center}
  .hero .profile-header{grid-template-columns:1fr;gap:18px;padding:28px 21px 30px;text-align:center;border-radius:20px}
  .hero .profile-photo-wrap{width:142px;margin:0 auto}
  .hero .profile-name{font-size:31px}
  .hero .profile-name-cn{font-size:19px;margin-left:7px}
  .hero .profile-title{font-size:16px;margin-top:10px}
  .hero .profile-affiliation{font-size:14px}
  .hero .profile-meta{justify-content:center;font-size:13px}
  .hero .profile-actions{justify-content:center;margin-top:17px}
  .hero .icon-link,.hero .utility-btn{width:46px;height:46px;min-height:46px}
  .hero .icon-link svg,.hero .utility-btn svg{width:22px;height:22px}
  .main{padding-top:30px}
}

@media print{
  .site-nav,.hero{display:none!important}
  .main{padding-top:1px}
}