:root { --ink:#14283f; --muted:#526274; --blue:#174c85; --line:#dfe5eb; --surface:#f4f7fa; }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; scroll-padding-top:100px; }
body { margin:0; color:var(--ink); background:#f5f7fa; font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif; }
a { color:var(--blue); text-decoration:none; text-underline-offset:4px; }
a:hover { text-decoration:underline; }
a:focus-visible,summary:focus-visible { outline:3px solid #b38929; outline-offset:5px; }
img { display:block; max-width:100%; }
figure,p { margin:0; }
p + p { margin-top:0.75rem; }
h1,h2,h3,h4 { margin:0; line-height:1.2; }
h1,h2 { font-family:Georgia,"Times New Roman",serif; font-weight:400; letter-spacing:-0.035em; }
h1 { font-size:clamp(2.5rem,4.6vw,4rem); max-width:620px; }
h2 { font-size:clamp(2rem,3vw,2.8rem); }
h3 { font-size:1.2rem; font-weight:600; }
h4 { font-size:1rem; font-weight:650; }
.container { width:min(1160px,calc(100% - 64px)); margin-inline:auto; }
.muted { color:var(--muted); }
.accent { color:#b38929; }
.eyebrow { font-size:0.8rem; font-weight:700; text-transform:uppercase; letter-spacing:0.12em; color:var(--blue); margin-bottom:1rem; }
.text-link { display:inline-block; font-size:0.9rem; font-weight:600; }
.skip-link { position:fixed; top:-100px; left:12px; z-index:10; padding:10px; background:white; }
.skip-link:focus { top:8px; }
.site-header { position:sticky; top:0; z-index:5; background:rgba(255,255,255,.97); border-bottom:1px solid var(--line); }
.header-inner { display:flex; align-items:center; justify-content:space-between; gap:2rem; padding-block:18px; }
.brand { font-size:1.65rem; font-weight:800; letter-spacing:-.05em; color:var(--ink); line-height:1; }
.brand span { display:block; font-size:.7rem; font-weight:500; letter-spacing:.02em; margin-top:8px; }
nav { display:flex; flex-wrap:wrap; gap:10px 24px; }
nav a { color:var(--muted); font-size:.9rem; font-weight:550; }
.hero { display:grid; grid-template-columns:1.05fr 1fr; align-items:center; gap:56px; padding-block:76px; }
.intro { font-size:1.18rem; line-height:1.6; margin-top:24px; }
.hero-copy .text-link { margin-top:24px; }
.hero-photo img { width:100%; height:auto; border-radius:3px; }
.hero-photo figcaption { display:flex; justify-content:space-between; flex-wrap:wrap; gap:4px 12px; color:var(--muted); font-size:.8rem; padding-top:12px; }
.hero-photo figcaption span { color:var(--ink); font-weight:600; }
.section { padding:48px 32px; margin-bottom:24px; background:#fff; border:1px solid var(--line); border-radius:10px; }
#life { background:transparent; border:0; }
.section-heading { margin-bottom:34px; }
.heading-row { display:flex; justify-content:space-between; align-items:end; gap:20px; }
.research-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:36px; }
.research-grid article { border-top:2px solid var(--blue); padding-top:20px; }
.section-number { font-size:.8rem; color:var(--muted); }
.research-grid h3 { margin:14px 0; font-size:1.45rem; }
.research-grid .muted { font-size:.9rem; }
.research-grid .text-link { margin-top:18px; }
.pi { display:flex; align-items:center; gap:22px; padding:24px; background:var(--surface); }
.pi img { width:88px; height:88px; object-fit:cover; border-radius:50%; }
.pi p { margin:4px 0 0; font-size:.9rem; }
.subheading { margin-top:36px; margin-bottom:12px; }
.people-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:0 28px; }
.person { display:flex; align-items:center; gap:16px; padding:23px 0; border-bottom:1px solid var(--line); min-width:0; }
.person > div { min-width:0; }
.person h4 span { display:block; font-size:.8rem; font-weight:400; color:var(--muted); margin-top:5px; }
.person p { font-size:.85rem; color:var(--muted); margin:3px 0 0; line-height:1.5; }
.person .interest { color:var(--ink); }
.avatar { width:68px; height:68px; border-radius:50%; overflow:hidden; flex:none; position:relative; }
.avatar img { width:100%; height:100%; object-fit:cover; }
.avatar:is(.tianyu,.vaibhav,.junbo,.hongbo,.daiyang) img { position:absolute; width:var(--w); max-width:none; height:auto; left:var(--x); top:var(--y); }
.tianyu { --w:357%; --x:-129%; --y:-153%; }
.vaibhav { --w:294%; --x:-91%; --y:-22%; }
.junbo { --w:256%; --x:-114%; --y:-165%; }
.hongbo { --w:256%; --x:-41%; --y:-62%; }
.daiyang { --w:278%; --x:-83%; --y:-7%; }
.alumni-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:0 36px; }
.alumni-grid .avatar { width:48px; height:48px; }
.publication-list article { padding:22px 0; border-bottom:1px solid var(--line); }
.venue { display:block; font-size:.8rem; font-weight:650; color:var(--blue); margin-bottom:8px; }
.publication-list h3 { font-size:1.12rem; line-height:1.5; margin-bottom:8px; }
.publication-list p { font-size:.9rem; color:var(--muted); margin-bottom:8px; }
.publication-list a,.coming-soon { font-size:.85rem; font-weight:600; }
.coming-soon { color:var(--muted); }
.paper-actions { display:flex; align-items:center; gap:20px; flex-wrap:wrap; }
.award { color:#785d21; font-size:.8rem; font-weight:600; }
.archive { margin-top:24px; }
summary { cursor:pointer; color:var(--blue); font-weight:600; font-size:.9rem; width:fit-content; }
.archive-list { margin-top:20px; }
.archive-list p { margin:0; padding:14px 0; border-bottom:1px solid var(--line); color:var(--muted); }
.life-intro { display:flex; align-items:baseline; justify-content:space-between; gap:20px; margin-bottom:10px; }
.life-intro p { font-size:.85rem; color:var(--muted); }
.gallery { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:32px; margin-top:28px; }
.gallery img { width:100%; aspect-ratio:4/3; object-fit:contain; background:var(--surface); }
.gallery figcaption { padding-top:12px; font-size:.95rem; font-weight:550; }
.gallery figcaption span { display:block; font-size:.8rem; color:var(--muted); font-weight:400; margin-top:4px; }
.slideshow { max-width:780px; margin-inline:auto; border:1px solid #d8e1ea; border-radius:12px; overflow:hidden; background:#fff; }
.slides img { width:100%; height:auto; aspect-ratio:4/3; object-fit:contain; background:#e7edf3; }
.slides figure[hidden],.slideshow-footer[hidden],.is-enhanced .slides figcaption { display:none; }
.slideshow-footer { display:flex; align-items:center; justify-content:space-between; gap:16px; padding:16px 20px; border-top:1px solid var(--line); min-height:110px; }
.slideshow-caption { font-size:.95rem; font-weight:600; line-height:1.5; }
.slideshow-caption span { display:block; margin-top:4px; font-size:.875rem; font-weight:400; color:var(--muted); }
.slides figcaption { min-height:78px; padding:14px 0; font-weight:600; }
.slides figcaption span { display:block; font-size:.875rem; font-weight:400; color:var(--muted); }
.slideshow-controls { display:flex; align-items:center; justify-content:center; flex-shrink:0; gap:8px; }
.slideshow-controls button { min-width:44px; min-height:44px; padding:8px 15px; border:1px solid var(--line); border-radius:4px; color:var(--ink); background:white; font:inherit; cursor:pointer; }
.slideshow-controls button:hover { background:var(--surface); }
.slideshow-controls button:focus-visible { outline:3px solid #b38929; outline-offset:3px; }
.slide-count { color:var(--muted); font-variant-numeric:tabular-nums; }
.news-list p { display:grid; grid-template-columns:120px 1fr; gap:20px; padding:17px 0; border-bottom:1px solid var(--line); margin:0; }
.news-list time { color:var(--muted); font-size:.85rem; }
.supporters h2 { font-size:1.7rem; margin-bottom:12px; }
.funding-logos { display:flex; flex-wrap:wrap; gap:32px; align-items:center; justify-content:space-between; margin-top:32px; }
.funding-logos img { width:120px; height:60px; object-fit:contain; }
.contact { display:flex; justify-content:space-between; align-items:center; gap:32px; }
.contact h2 { margin-bottom:20px; }
.contact p:not(.eyebrow) { color:var(--muted); }
.contact-email { font-size:clamp(1.1rem,2.5vw,1.7rem); }
footer { display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; border-top:1px solid var(--line); padding-block:24px; font-size:.8rem; color:var(--muted); }
@media(max-width:1000px) { .hero { gap:32px; } .people-grid { grid-template-columns:repeat(2,minmax(0,1fr)); } nav { gap:10px 16px; } }
@media(max-width:760px) {
  .container { width:calc(100% - 36px); }
  .header-inner { flex-direction:column; align-items:start; gap:16px; }
  .brand span { display:inline; margin-left:12px; }
  nav { gap:8px 16px; }
  nav a { font-size:.85rem; }
  html { scroll-padding-top:150px; }
  .hero { grid-template-columns:1fr; padding-block:40px; }
  .hero-copy { max-width:620px; }
  .hero-photo { max-width:620px; }
  .section { padding:32px 20px; }
  .slideshow-footer { flex-direction:column; align-items:flex-start; min-height:156px; padding:16px; }
  .research-grid { grid-template-columns:1fr; gap:28px; }
  .heading-row,.life-intro,.contact { flex-direction:column; align-items:start; }
  .alumni-grid { grid-template-columns:1fr; }
  .gallery { gap:24px; }
}
@media(max-width:500px) { .people-grid,.gallery { grid-template-columns:1fr; } .news-list p { grid-template-columns:1fr; gap:4px; } .funding-logos { justify-content:flex-start; gap:24px; } }
@media(prefers-reduced-motion:reduce) { html { scroll-behavior:auto; } }