:root{
  --ink:#1c1a1f;
  --muted:#66606b;
  --line:#ded9e3;
  --soft:#f6f4f7;
  --paper:#ffffff;
  --purple:#5b2b7f;
  --purple-dark:#3f175e;
  --purple-soft:#eee8f3;
  --max:1180px;
  --hero-max:1360px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:var(--paper);
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
a:hover{color:var(--purple)}
img{max-width:100%;display:block}
button{font:inherit}
.shell{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.site-header{
  position:sticky;
  top:0;
  z-index:20;
  background:rgba(255,255,255,.97);
  border-top:5px solid var(--purple);
  border-bottom:1px solid var(--line);
}
.header-inner{
  min-height:78px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.identity{
  display:flex;
  align-items:baseline;
  gap:12px;
  white-space:nowrap;
}
.identity strong{
  font-family:Georgia,"Times New Roman",serif;
  font-size:24px;
  font-weight:600;
  letter-spacing:.01em;
}
.identity span{
  color:var(--muted);
  font-size:14px;
}
.nav{
  display:flex;
  align-items:center;
  gap:27px;
  font-size:14px;
  font-weight:600;
}
.nav a{
  padding:27px 0 24px;
  border-bottom:3px solid transparent;
}
.nav a:hover,.nav a[aria-current="page"]{
  color:var(--purple);
  border-bottom-color:var(--purple);
}
.menu-button{
  display:none;
  background:transparent;
  border:0;
  padding:10px 0;
  color:var(--ink);
  cursor:pointer;
}
.hero{
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,#fff 0%,#fbfafc 100%);
}
.hero .shell{
  width:min(var(--hero-max),calc(100% - 48px));
}
.hero-grid{
  min-height:610px;
  display:grid;
  grid-template-columns:minmax(340px,440px) minmax(0,1fr);
  align-items:center;
  gap:72px;
  padding:72px 0;
}
.portrait-wrap{
  position:relative;
}
.portrait-wrap:before{
  content:"";
  position:absolute;
  inset:-18px 18px 18px -18px;
  background:var(--purple);
  z-index:0;
}
.portrait{
  position:relative;
  z-index:1;
  width:100%;
  height:auto;
  aspect-ratio:auto;
  object-fit:contain;
  object-position:center;
  border:1px solid var(--line);
  background:#eee;
}
.eyebrow{
  margin:0 0 18px;
  color:var(--purple);
  font-size:13px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
}
.hero h1{
  margin:0;
  font-family:Georgia,"Times New Roman",serif;
  font-size:clamp(52px,6vw,82px);
  line-height:1.02;
  font-weight:500;
  letter-spacing:-.035em;
}
.hero h1 .cn{
  display:block;
  margin-top:13px;
  font-family:"Songti SC","STSong","Noto Serif CJK SC",serif;
  font-size:.39em;
  letter-spacing:.12em;
  color:var(--muted);
}
.role{
  margin:28px 0 0;
  font-family:Georgia,"Times New Roman",serif;
  font-size:25px;
  line-height:1.45;
}
.intro{
  max-width:720px;
  margin:22px 0 0;
  color:var(--muted);
  font-size:17px;
}
.hero-meta{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px 34px;
  margin:32px 0 0;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.meta-item{
  font-size:14px;
  color:var(--muted);
}
.meta-item strong{
  display:block;
  margin-bottom:3px;
  color:var(--ink);
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:.1em;
}
.hero-links{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:31px;
}
.text-button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:42px;
  padding:0 18px;
  border:1px solid var(--purple);
  color:var(--purple);
  font-size:14px;
  font-weight:700;
}
.text-button.primary{
  background:var(--purple);
  color:#fff;
}
.text-button:hover{
  background:var(--purple-dark);
  border-color:var(--purple-dark);
  color:#fff;
}
.section{
  padding:86px 0;
  border-bottom:1px solid var(--line);
}
.section.soft{background:var(--soft)}
.section-head{
  display:grid;
  grid-template-columns:260px 1fr;
  gap:48px;
  align-items:start;
  margin-bottom:46px;
}
.section-index{
  color:var(--purple);
  font-size:12px;
  font-weight:800;
  letter-spacing:.16em;
  text-transform:uppercase;
}
.section-title{
  margin:0;
  font-family:Georgia,"Times New Roman",serif;
  font-weight:500;
  font-size:clamp(34px,4vw,52px);
  letter-spacing:-.02em;
  line-height:1.15;
}
.section-lead{
  max-width:760px;
  margin:15px 0 0;
  color:var(--muted);
  font-size:16px;
}
.about-grid{
  display:grid;
  grid-template-columns:260px 1fr;
  gap:48px;
}
.about-label{
  font-size:13px;
  text-transform:uppercase;
  letter-spacing:.12em;
  color:var(--muted);
}
.about-copy{
  max-width:820px;
  font-size:18px;
}
.about-copy p{margin:0 0 18px}
.research-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.research-item{
  min-height:315px;
  padding:34px 32px 38px;
  border-right:1px solid var(--line);
  background:#fff;
}
.research-item:last-child{border-right:0}
.research-number{
  display:block;
  margin-bottom:42px;
  color:var(--purple);
  font-family:Georgia,"Times New Roman",serif;
  font-size:20px;
}
.research-item h3{
  margin:0 0 17px;
  font-family:Georgia,"Times New Roman",serif;
  font-size:28px;
  line-height:1.2;
  font-weight:500;
}
.research-item p{
  margin:0;
  color:var(--muted);
  font-size:15px;
}
.publication-tools{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:0 0 18px;
  border-bottom:2px solid var(--ink);
}
.filters{
  display:flex;
  flex-wrap:wrap;
  gap:7px;
}
.filter-button{
  border:1px solid var(--line);
  background:#fff;
  padding:7px 11px;
  color:var(--muted);
  cursor:pointer;
  font-size:13px;
}
.filter-button[aria-pressed="true"]{
  background:var(--purple);
  border-color:var(--purple);
  color:#fff;
}
.publication-count{
  color:var(--muted);
  font-size:13px;
  white-space:nowrap;
}
.publication{
  display:grid;
  grid-template-columns:82px minmax(0,1fr) 130px;
  gap:28px;
  padding:26px 0;
  border-bottom:1px solid var(--line);
}
.publication[hidden]{display:none}
.pub-year{
  color:var(--purple);
  font-family:Georgia,"Times New Roman",serif;
  font-size:19px;
}
.pub-content h3{
  margin:0 0 9px;
  font-family:Georgia,"Times New Roman",serif;
  font-size:20px;
  line-height:1.4;
  font-weight:500;
}
.pub-authors,.pub-venue{
  margin:3px 0;
  color:var(--muted);
  font-size:14px;
}
.pub-venue{
  color:var(--ink);
  font-weight:600;
}
.badge{
  display:inline-block;
  margin-left:7px;
  padding:2px 7px;
  background:var(--purple-soft);
  color:var(--purple);
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  font-size:10px;
  font-weight:800;
  letter-spacing:.04em;
  vertical-align:2px;
}
.pub-actions{
  display:flex;
  justify-content:flex-end;
  align-items:flex-start;
  gap:11px;
  font-size:13px;
  font-weight:700;
}
.pub-actions a{
  color:var(--purple);
  border-bottom:1px solid currentColor;
}
.pub-actions span{color:var(--muted)}
.software-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.software-card{
  padding:34px;
  border:1px solid var(--line);
  background:#fff;
}
.software-card .small{
  margin:0 0 18px;
  color:var(--purple);
  font-size:11px;
  font-weight:800;
  letter-spacing:.15em;
  text-transform:uppercase;
}
.software-card h3{
  margin:0 0 12px;
  font-family:Georgia,"Times New Roman",serif;
  font-size:30px;
  font-weight:500;
}
.software-card p{
  color:var(--muted);
  margin:0 0 20px;
}
.software-card img{
  height:20px;
  width:auto;
}
.service{
  display:grid;
  grid-template-columns:260px 1fr;
  gap:48px;
}
.venue-list{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.venue-list span{
  padding:9px 13px;
  border:1px solid var(--line);
  background:#fff;
  color:#49434c;
  font-size:13px;
}
.contact{
  background:var(--purple-dark);
  color:#fff;
  border-bottom:0;
}
.contact .section-index,.contact .section-lead{color:#d9cbe5}
.contact .section-title{max-width:780px}
.contact-links{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:34px;
}
.contact-links a{
  padding-bottom:3px;
  border-bottom:1px solid rgba(255,255,255,.55);
  font-weight:700;
}
.contact-links a:hover{color:#fff;border-bottom-color:#fff}
.footer{
  background:#24162e;
  color:#cfc3d7;
}
.footer-inner{
  min-height:88px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  font-size:12px;
}
.footer-links{display:flex;gap:20px}
.footer a:hover{color:#fff}
@media(max-width:900px){
  .shell{width:min(var(--max),calc(100% - 34px))}
  .menu-button{display:block}
  .nav{
    position:absolute;
    left:0;
    right:0;
    top:78px;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px 17px 18px;
    background:#fff;
    border-bottom:1px solid var(--line);
  }
  .nav.open{display:flex}
  .nav a{padding:13px 0;border-bottom:1px solid var(--line)}
  .hero .shell{width:min(var(--hero-max),calc(100% - 34px))}
  .hero-grid{grid-template-columns:310px minmax(0,1fr);gap:38px;min-height:auto}
  .section-head,.about-grid,.service{grid-template-columns:180px 1fr;gap:30px}
  .research-grid{grid-template-columns:1fr}
  .research-item{border-right:0;border-bottom:1px solid var(--line);min-height:0}
  .research-item:last-child{border-bottom:0}
}
@media(max-width:760px){
  .shell{width:min(var(--max),calc(100% - 28px))}
  .header-inner{min-height:68px}
  .identity strong{font-size:21px}
  .identity span{display:none}
  .nav{top:68px}
  .hero-grid{
    grid-template-columns:1fr;
    gap:42px;
    padding:46px 0 54px;
  }
  .portrait-wrap{max-width:340px;margin:0 auto 0 18px}
  .hero-meta{grid-template-columns:1fr}
  .section{padding:64px 0}
  .section-head,.about-grid,.service{grid-template-columns:1fr;gap:14px}
  .section-head{margin-bottom:34px}
  .research-item{padding:28px 22px 32px}
  .research-number{margin-bottom:24px}
  .publication-tools{align-items:flex-start;flex-direction:column}
  .publication{grid-template-columns:58px 1fr;gap:18px}
  .pub-actions{grid-column:2;justify-content:flex-start}
  .software-grid{grid-template-columns:1fr}
  .footer-inner{align-items:flex-start;flex-direction:column;padding:25px 0}
}