:root{
  --maroon:#500000;
  --maroon-dark:#351010;
  --maroon-light:#7b1f28;
  --ink:#222;
  --muted:#666;
  --line:#ded8d4;
  --paper:#fff;
  --soft:#f7f3f1;
  --soft2:#fbfaf8;
  --max:1180px;
}

*{box-sizing:border-box}
html{
  scroll-behavior:smooth;
  scroll-padding-top:110px;
}
body{
  margin:0;
  background:var(--soft2);
  color:var(--ink);
  font-family:Georgia,'Times New Roman','Noto Serif SC',serif;
  line-height:1.65;
}

a{color:var(--maroon);text-decoration:none}
a:hover{text-decoration:underline}

.topbar{
  position:sticky;
  top:0;
  z-index:20;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  max-width:var(--max);
  margin:auto;
  padding:12px 22px;
  display:flex;
  align-items:center;
  gap:24px;
}
.site-title{
  font-weight:700;
  letter-spacing:.03em;
  color:var(--maroon-dark);
  font-size:18px;
  white-space:nowrap;
}
.nav{
  display:flex;
  gap:18px;
  flex:1;
  justify-content:flex-end;
  font-family:Arial,'Noto Sans SC',sans-serif;
  font-size:14px;
}
.nav a{color:#333}
.nav a:hover{color:var(--maroon)}

.lang-toggle{
  border:1px solid var(--maroon);
  background:#fff;
  color:var(--maroon);
  padding:6px 12px;
  border-radius:3px;
  cursor:pointer;
  font-weight:700;
}

.banner{
  max-width:var(--max);
  margin:22px auto 0;
  padding:0 22px;
}
.banner img{
  width:100%;
  height:210px;
  display:block;
  object-fit:cover;
  border:1px solid var(--line);
  background:#eee;
}

.layout{
  max-width:var(--max);
  margin:22px auto 48px;
  padding:0 22px;
  display:grid;
  grid-template-columns:280px minmax(0,1fr);
  gap:26px;
  align-items:start;
}

.profile-card{
  position:sticky;
  top:72px;
  background:var(--paper);
  border:1px solid var(--line);
  padding:20px;
  text-align:left;
  box-shadow:0 1px 2px rgba(0,0,0,.03);
}
.portrait{
  width:160px;
  height:200px;
  display:block;
  margin:0 auto 14px;
  object-fit:cover;
  border:1px solid var(--line);
  background:#eee;
}
.profile-name{
  text-align:center;
  margin:4px 0 0;
  font-size:22px;
  color:var(--maroon-dark);
}
.profile-sub{
  text-align:center;
  color:var(--muted);
  margin:0 0 12px;
  font-family:Arial,'Noto Sans SC',sans-serif;
}
.profile-meta{
  border-top:3px solid var(--maroon);
  padding-top:14px;
  font-family:Arial,'Noto Sans SC',sans-serif;
  font-size:14px;
}
.profile-meta p{margin:8px 0}
.keyword-list{
  margin:8px 0;
  padding-left:20px;
}
.keyword-list li{
  margin:3px 0;
}
.profile-links{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:8px;
  margin-top:15px;
}
.profile-links a{
  font-family:Arial,'Noto Sans SC',sans-serif;
  text-align:center;
  border:1px solid var(--line);
  padding:6px 8px;
  background:var(--soft);
  font-size:13px;
}
.profile-links a:hover{
  background:var(--maroon);
  color:#fff;
  text-decoration:none;
}

.panel{
  background:var(--paper);
  border:1px solid var(--line);
  margin-bottom:18px;
  padding:24px 28px;
  box-shadow:0 1px 2px rgba(0,0,0,.02);
}
.panel h2{
  margin:0 0 14px;
  color:var(--maroon);
  font-size:24px;
  border-bottom:2px solid var(--maroon);
  padding-bottom:8px;
}
.panel h3{
  color:#333;
  margin:0 0 6px;
  font-size:18px;
}
.section-note{
  color:var(--muted);
  font-family:Arial,'Noto Sans SC',sans-serif;
  font-size:14px;
  margin-top:-6px;
}

.intro-block{
  display:grid;
  grid-template-columns:1fr 190px;
  gap:22px;
  align-items:center;
}
.module-img{
  width:100%;
  border:1px solid var(--line);
  background:#f3eeee;
  align-self:center; 
}

.research-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.research-item{
  display:grid;
  grid-template-columns:140px 1fr;
  gap:22px;
  align-items:center;
  border:1px solid var(--line);
  padding:18px;
  background:var(--soft2);
}

.research-item img{
  width:140px;
  aspect-ratio:9/16;
  object-fit:contain;
  object-position:center;
  border:1px solid var(--line);
  background:white;
  display:block;
  align-self:center; 
  transition:.25s;
}

.research-item:hover img{
  transform:scale(1.03);
}

.pub-list{
  padding-left:22px;
  margin:0;
}
.pub-list li{
  margin:0 0 12px;
}

.list-block{
  display:grid;
  grid-template-columns:180px 1fr;
  gap:22px;
  align-items:start;
}
.list-block ul{
  margin:0;
  padding-left:20px;
}
.list-block li{
  margin-bottom:8px;
}
.simple-list{
  margin:0;
  padding-left:22px;
}
.simple-list li{
  margin-bottom:8px;
}

.group-list{
  display:grid;
  gap:16px;
}
.subsection{
  border-left:4px solid var(--maroon);
  padding:0 0 0 14px;
}
.subsection h3{
  font-family:Arial,'Noto Sans SC',sans-serif;
  font-size:16px;
  color:var(--maroon-dark);
  margin:0 0 8px;
}
.subsection .simple-list{
  margin-bottom:0;
}
.subsection .simple-list li{
  margin-bottom:7px;
}

/* Publication links and status */
.pub-link{
  color:#0056b3;
  font-weight:600;
  text-decoration:none;
  margin-left:6px;
}
.pub-link:hover{
  color:#003d80;
  text-decoration:underline;
}
.pub-status{
  color:#777;
  font-style:italic;
  font-size:0.92em;
}

/* Project cards: PI projects only */
.project-card-list{
  display:grid;
  gap:16px;
  margin:0;
}

.project-card{
  display:grid;
  grid-template-columns:minmax(0,1fr) 360px;
  gap:22px;
  align-items:start;
  padding:10px 0 4px;
}

.project-card-text{
  line-height:1.7;
}

.project-card-image{
  border:1px solid var(--line);
  background:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:8px;
}

.project-card-image img{
  max-width:100%;
  max-height:260px;
  width:auto;
  height:auto;
  object-fit:contain;
  display:block;
}

.project-placeholder{
  width:100%;
  height:150px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--muted);
  font-family:Arial,'Noto Sans SC',sans-serif;
  font-size:14px;
  border:1px dashed var(--line);
  background:#faf7f5;
}

.footer{
  max-width:var(--max);
  margin:0 auto 35px;
  padding:18px 22px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  color:var(--muted);
  font-family:Arial,'Noto Sans SC',sans-serif;
  font-size:13px;
}

[data-lang="en"] [data-zh],
[data-lang="zh"] [data-en]{
  display:none!important;
}

@media(max-width:900px){
  .topbar-inner{flex-wrap:wrap}
  .nav{
    order:3;
    width:100%;
    justify-content:flex-start;
    overflow:auto;
  }
  .layout{grid-template-columns:1fr}
  .profile-card{position:static}
  .intro-block,
  .list-block{grid-template-columns:1fr}
  .research-grid{grid-template-columns:1fr}
  .banner img{height:150px}
}

@media(max-width:800px){
  .project-card{
    grid-template-columns:1fr;
  }
}

@media(max-width:520px){

  .panel{
    padding:18px;
  }

  .research-item{
    grid-template-columns:100px 1fr;   /* 图片左，文字右 */
    gap:14px;
    align-items:center;
  }

  .research-item img{
    width:100px;
    aspect-ratio:9/16;
    height:auto;
    object-fit:contain;      /* 完整显示图片 */
    object-position:center;
  }

  .footer{
    display:block;
  }

  .profile-links{
    grid-template-columns:1fr;
  }
}

.student-list{
  display:grid;
  gap:4px;
}

.student-card{
  display:flex;
  align-items:flex-start;
  gap:20px;
  padding:6px 0;
}

.student-photo{
  width:100px;
  height:130px;
  object-fit:cover;
  object-position:center;
  border:1px solid var(--line);
  background:#f7f7f7;
  flex-shrink:0;
}

.student-info{
  flex:1;
  font-family:Arial,'Noto Sans SC',sans-serif;
}

.student-name{
  font-size:20px;
  font-weight:700;
  color:var(--maroon-dark);
  margin-bottom:8px;
}

.student-degree{
  color:#555;
  font-size:15px;
  margin-bottom:4px;
}

.student-period{
  color:#777;
  font-size:14px;
}
/* =========================
   HUGE Lab
========================= */

.lab-header{
  display:grid;
  grid-template-columns:260px minmax(0, 1fr);
  gap:28px;
  align-items:center;
  margin:4px 0 28px;
  padding:20px;
  background:var(--soft2);
  border:1px solid var(--line);
}

.lab-logo-wrap{
  display:flex;
  align-items:center;
  justify-content:center;
}

.lab-logo{
  display:block;
  width:100%;
  max-width:250px;
  height:auto;
  object-fit:contain;
}

.lab-description{
  font-size:16px;
  line-height:1.8;
  color:#333;
}

.undergraduate-item{
  position:relative;
  padding:0 0 0 18px;
  margin:0;
  font-family:Arial,'Noto Sans SC',sans-serif;
  font-size:15px;
  line-height:1.3;
  color:#444;
}

.undergraduate-item::before{
  content:"";
  position:absolute;
  left:2px;
  top:8px;
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--maroon);
}

@media(max-width:700px){
  .lab-header{
    grid-template-columns:1fr;
    gap:18px;
    padding:16px;
  }

  .lab-logo{
    max-width:280px;
  }

  .lab-description{
    font-size:15px;
  }
}