:root{
  --bg:#F5F7F8;
  --surface:#FFFFFF;
  --surface-alt:#EEF2F4;
  --text:#17212B;
  --muted:#5B6773;
  --line:#D7DEE3;
  --navy:#102A43;
  --teal:#2E6F73;
  --shadow:0 18px 50px rgba(20,36,52,.08);
  --shadow-hover:0 24px 60px rgba(20,36,52,.14);
  --max:1180px;
  --radius:14px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
  margin:0;
  color:var(--text);
  background:linear-gradient(180deg,#F7F9FA 0%,#F2F5F6 100%);
  font-family:"Inter",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  line-height:1.65;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.container{width:min(calc(100% - 40px),var(--max));margin-inline:auto}
.pub-page{background:var(--bg)}

/* Header */
.site-header,.pub-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
}
.header-inner,.pub-header{
  min-height:72px;
  display:flex;
  align-items:center;
}
.header-inner{gap:24px}
.site-brand,.pub-brand{
  color:var(--navy);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:1.28rem;
  font-weight:700;
  letter-spacing:-.02em;
}
.site-brand{margin-right:auto}
.main-nav,.pub-header nav{
  display:flex;
  align-items:center;
  gap:24px;
  margin-left:auto;
  font-size:.82rem;
  font-weight:600;
}
.main-nav a,.pub-header nav a{
  color:#44515D;
  padding:25px 0 22px;
  border-bottom:2px solid transparent;
}
.main-nav a:hover,.main-nav a.active,
.pub-header nav a:hover,.pub-header nav a.active{
  color:var(--navy);
  border-bottom-color:var(--teal);
}
.theme-toggle{
  width:38px;
  height:38px;
  display:grid;
  place-items:center;
  border:1px solid var(--line);
  border-radius:50%;
  background:var(--surface);
  cursor:pointer;
  margin-left:8px;
}
.pub-theme-toggle{margin-left:18px;margin-right:20px}
.menu-button{
  display:none;
  width:42px;
  height:42px;
  padding:10px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--surface);
}
.menu-button span{display:block;height:2px;margin:5px 0;background:var(--navy)}

/* Homepage */
.hero{padding:60px 0 40px}
.hero-grid{
  display:grid;
  grid-template-columns:320px minmax(0,1fr);
  gap:60px;
  align-items:center;
  max-width:100%;
}
.portrait{
  width:260px;
  height:260px;
  margin:auto;
  object-fit:cover;
  border-radius:50%;
  box-shadow:var(--shadow);
}
.kicker,.section-label{
  margin:0 0 12px;
  color:var(--teal);
  font-size:.74rem;
  font-weight:700;
  letter-spacing:.13em;
  text-transform:uppercase;
}
.intro-column h1{
  margin:0 0 8px;
  color:var(--navy);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(3rem,6vw,5.2rem);
  line-height:1;
  letter-spacing:-.045em;
}
.role{
  margin:0 0 22px;
  color:#374551;
  font-size:1.04rem;
  font-weight:600;
}
.intro{
  max-width:680px;
  margin:0;
  color:var(--muted);
  font-size:1.02rem;
}
.contact-links{
  display:none;
}
.hero-actions{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:12px;
  margin-top:18px;
}
.action-card{
  display:flex;
  align-items:center;
  gap:10px;
  padding:14px 16px;
  border:1px solid rgba(46,111,115,.18);
  border-radius:12px;
  background:rgba(255,255,255,.92);
  color:var(--navy);
  font-size:.92rem;
  font-weight:700;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.action-card:hover{
  transform:translateY(-2px);
  border-color:var(--teal);
  box-shadow:0 18px 40px rgba(46,111,115,.1);
}
.action-icon{
  width:34px;
  height:34px;
  display:grid;
  place-items:center;
  border-radius:10px;
  background:var(--surface-alt);
  color:var(--teal);
  font-size:1rem;
}

.section{padding:18px 0 42px}
.panel{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(255,255,255,.86);
  box-shadow:var(--shadow);
}
.academic-panel{padding:34px 38px}
.section-heading{margin-bottom:26px}
.section-heading h2{
  margin:0;
  color:var(--navy);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(2rem,3vw,2.7rem);
  letter-spacing:-.03em;
}
.timeline{
  position:relative;
  display:grid;
  grid-template-columns:1fr;
  gap:0;
  padding-left:56px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:28px;
  top:0;
  bottom:0;
  width:2px;
  background:var(--line);
}
.timeline article{
  display:grid;
  grid-template-columns:54px 1fr;
  gap:14px;
  padding:14px 0;
  border-top:1px solid var(--line);
  position:relative;
}
.timeline article:first-child{border-top:0;padding-top:0}
.timeline article::before{
  content:"";
  position:absolute;
  left:27px;
  top:24px;
  width:10px;
  height:10px;
  border-radius:50%;
  background:var(--surface);
  border:2px solid var(--teal);
}
.timeline-icon{
  width:44px;
  height:44px;
  display:grid;
  place-items:center;
  border-radius:50%;
  background:var(--teal);
  color:#fff;
  font-size:1rem;
  box-shadow:var(--shadow);
}
.timeline-copy{
  display:grid;
  gap:4px;
}
.timeline time{
  color:var(--teal);
  font-size:.95rem;
  font-weight:700;
}
.timeline h3{
  margin:0 0 3px;
  font-size:1.04rem;
}
.timeline p{
  margin:1px 0;
  color:var(--muted);
  font-size:.92rem;
  line-height:1.35;
}


.section-links{padding-top:38px;padding-bottom:78px}
.feature-grid{
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  gap:18px;
}
.feature-card{
  position:relative;
  min-height:420px;
  height:420px;
  overflow:hidden;
  border-radius:20px;
  background-size:cover;
  background-position:center;
  box-shadow:0 18px 50px rgba(20,36,52,.08);
  transition:transform .24s ease,box-shadow .24s ease;
}
.feature-card::before{
  content:"";
  position:absolute;
  inset:0;
  background:inherit;
  background-size:cover;
  background-position:center;
  filter:blur(1px);
  transform:scale(1.02);
  z-index:0;
}
.feature-card.low-blur::before{
  filter:blur(.4px);
  transform:scale(1.01);
}
.feature-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-hover);
}
.feature-overlay{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding:28px;
  background:linear-gradient(180deg,rgba(7,18,28,0) 28%,rgba(7,18,28,.80) 100%);
  color:#fff;
  z-index:1;
}
.feature-number{
  margin:0 0 12px;
  color:rgba(164,224,228,.75);
  font-size:.95rem;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
}
.feature-overlay h3{
  margin:0 0 12px;
  color:#fff;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:1.75rem;
  line-height:1.05;
}
.feature-overlay p{
  margin:0;
  color:rgba(255,255,255,.9);
  font-size:1rem;
  line-height:1.45;
}
.feature-card:nth-child(4),
.feature-card:nth-child(5){
  grid-column:span 1;
}

.site-footer{
  border-top:1px solid var(--line);
  background:var(--navy);
  color:#DDE5EB;
}
.site-footer .container{
  min-height:82px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  font-size:.8rem;
}

/* Detail pages */
.pub-page{background:var(--bg)}
.pub-header{padding:0 28px}
.pub-layout{
  display:grid;
  grid-template-columns:270px minmax(0,1fr) 105px;
  gap:24px;
  max-width:1480px;
  margin:0 auto;
  padding:34px 26px 70px;
}
.profile-sidebar{
  position:sticky;
  top:100px;
  align-self:start;
  padding:24px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  box-shadow:var(--shadow);
  text-align:center;
}
.profile-sidebar img{
  width:100%;
  aspect-ratio:1;
  object-fit:cover;
  margin-bottom:18px;
  border-radius:8px;
}
.profile-sidebar h1{
  margin:0 0 6px;
  color:var(--navy);
  font-family:"Source Serif 4",Georgia,serif;
}
.profile-sidebar p{color:var(--muted);font-size:.88rem}
.profile-sidebar>a{color:var(--teal);font-size:.84rem}
.sidebar-links{display:flex;justify-content:center;gap:8px;margin-top:17px}
.sidebar-links a{
  padding:7px 10px;
  border:1px solid var(--line);
  border-radius:6px;
  color:var(--navy);
  font-size:.75rem;
}
.publication-main{
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  box-shadow:var(--shadow);
}
.publication-heading{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:20px;
  padding:24px 28px;
  border-bottom:1px solid var(--line);
}
.publication-heading span{
  display:block;
  margin-top:6px;
}
.publication-heading h2{
  margin:0;
  color:var(--navy);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:1.6rem;
}
.publication-heading a,.publication-heading span{color:var(--teal);font-size:.84rem}
.year-section{
  padding:6px 28px 6px;
}
.year-section>h2{
  margin:0 0 4px;
  color:var(--navy);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:1.75rem;
}
.paper-card{
  display:grid;
  grid-template-columns:minmax(160px,220px) minmax(0,1fr);
  align-items:start;
  gap:24px;
  padding:26px 28px;
  border-top:1px solid var(--line);
  transition:background .2s ease;
}
.paper-card:hover{background:#F8FAFB}
.paper-card img{
  width:100%;
  height:auto;
  object-fit:cover;
  border:1px solid var(--line);
  border-radius:6px;
}
.research-project-card{
  align-items:stretch;
  grid-template-columns:minmax(220px,280px) 1fr;
}
.research-project-card img{
  width:100%;
  height:auto;
  max-height:320px;
  object-fit:cover;
}
.hobby-gallery{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
  margin-top:18px;
}
.hobby-gallery img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:16px;
  box-shadow:var(--shadow);
  border:1px solid rgba(255,255,255,.4);
}
@media(max-width:980px){
  .hobby-gallery{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media(max-width:660px){
  .hobby-gallery{grid-template-columns:1fr;}
}
.paper-card h3{
  margin:0 0 8px;
  color:var(--navy);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:1.3rem;
  line-height:1.25;
}
.paper-card p{margin:4px 0;color:#374551;font-size:.9rem}
.paper-summary{color:var(--muted)!important}
.single-line{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.award-list{
  list-style:none;
  margin:0;
  padding:0;
}
.award-list li{
  display:grid;
  grid-template-columns:minmax(160px,220px) 1fr;
  gap:14px;
  padding:8px 0;
  border-top:1px solid var(--line);
}
.award-list li:first-child{border-top:0}
.award-list strong{
  color:var(--navy);
  display:block;
  font-size:1.02rem;
  font-weight:700;
}
.award-list li{
  color:var(--muted);
  font-size:1rem;
  line-height:1.4;
  padding-right:18px;
}
.year-nav{
  position:sticky;
  top:100px;
  align-self:start;
  display:grid;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:9px;
  background:var(--surface);
  padding:10px 0;
}
.year-nav a{
  padding:12px 14px;
  border-bottom:1px solid var(--line);
  color:var(--teal);
  font-size:.8rem;
  font-weight:600;
}
.year-nav a:last-child{border-bottom:0}
.year-nav a:hover{background:var(--surface-alt)}
.activity-card img{height:145px}
.project-tags{color:var(--teal)!important;font-weight:600}

/* Reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}
.reveal.visible{opacity:1;transform:none}

/* Dark mode */
html[data-theme="dark"]{
  --bg:#0F1720;
  --surface:#17212B;
  --surface-alt:#1D2A35;
  --text:#EEF3F6;
  --muted:#AAB7C2;
  --line:#31414E;
  --navy:#F3F6F8;
  --teal:#74B8BA;
  --shadow:0 18px 50px rgba(0,0,0,.28);
  --shadow-hover:0 26px 60px rgba(0,0,0,.38);
  color-scheme:dark;
}
html[data-theme="dark"] body{background:linear-gradient(180deg,#101820,#0D141B)}
html[data-theme="dark"] .site-header,
html[data-theme="dark"] .pub-header{background:rgba(15,23,32,.94)}
html[data-theme="dark"] .main-nav a,
html[data-theme="dark"] .pub-header nav a,
html[data-theme="dark"] .role,
html[data-theme="dark"] .paper-card p{color:#C7D1D9}
html[data-theme="dark"] .panel,
html[data-theme="dark"] .contact-links a{background:rgba(23,33,43,.88)}
html[data-theme="dark"] .paper-card:hover{background:#1B2833}

/* Responsive */
@media(max-width:1020px){
  .main-nav{gap:15px;font-size:.74rem}
  .hero-grid{grid-template-columns:320px minmax(0,1fr);gap:60px}
  .portrait{width:260px;height:260px}
  .feature-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
  .pub-layout{grid-template-columns:230px minmax(0,1fr)}
  .year-nav{display:none}
}
@media(max-width:920px){
  .feature-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media(max-width:820px){
  .header-inner{min-height:64px}
  .menu-button{display:none}
  .main-nav{
    position:static;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:flex-start;
    gap:12px;
    margin-left:auto;
    padding:12px 0 0;
    border:none;
    border-radius:0;
    background:transparent;
    box-shadow:none;
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:10px 8px;border-bottom:0}
  .hero{padding-top:54px}
  .hero-grid{grid-template-columns:minmax(160px,42%) minmax(0,1fr);text-align:left;gap:24px}
  .portrait{width:min(220px,42vw);height:min(220px,42vw)}
  .hero-actions{grid-template-columns:repeat(4,minmax(0,1fr));}
  .intro{margin:0}
  .timeline{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pub-layout{grid-template-columns:1fr;padding:20px 14px 50px}
  .profile-sidebar{position:static}
}
@media(max-width:560px){
  .container{width:min(calc(100% - 40px),var(--max))}
  .hero{padding:60px 0 40px}
  .hero-grid{grid-template-columns:1fr;gap:20px}
  .portrait{width:min(220px,72vw);height:min(220px,72vw)}
  .intro-column h1{font-size:clamp(2.4rem,7.5vw,3.4rem);line-height:1.04}
  .role{font-size:1.04rem}
  .intro{text-align:left;font-size:1.02rem}
  .hero-actions{grid-template-columns:1fr;gap:12px}
  .action-card{padding:16px 14px}
  .academic-panel{padding:24px 18px}
  .timeline article{grid-template-columns:1fr;gap:5px}
  .feature-grid{grid-template-columns:1fr}
  .site-footer .container{flex-direction:column;justify-content:center;gap:4px}
  .paper-card{grid-template-columns:1fr;padding:20px}
  .paper-card img{height:auto}
  .publication-heading{align-items:flex-start;flex-direction:column}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* Narrow-screen compromise: prevent horizontal overflow while keeping desktop-like sizes */
@media(max-width:420px){
  .hero-grid{
    grid-template-columns:minmax(120px,40%) 1fr;
    gap:12px;
    align-items:start;
  }
  .portrait{
    width:min(180px,40vw);
    height:min(180px,40vw);
    max-width:200px;
    max-height:200px;
  }
  .intro-column h1{
    font-size:clamp(2rem,6vw,2.8rem);
    line-height:1.02;
  }
  .container{width:calc(100% - 32px)}
  .feature-grid{grid-template-columns:1fr}
  html,body{overflow-x:hidden}
}