:root { --blue:#2f7fba; --text:#494e52; --muted:#7a8288; --border:#f2f3f3; }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { margin:0; color:var(--text); background:#fff; font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif; font-size:16px; line-height:1.55; }
a { color:var(--blue); text-decoration:none; }
a:hover { text-decoration:underline; }
.masthead { position:sticky; top:0; z-index:20; background:#fff; border-bottom:1px solid #f2f3f3; box-shadow:0 1px 1px rgba(0,0,0,.03); }
.masthead-inner { max-width:1280px; min-height:64px; margin:0 auto; padding:0 28px; display:flex; align-items:center; }
.site-title { display:none; color:#111; font-weight:700; }
.top-nav { width:100%; display:flex; justify-content:center; align-items:center; column-gap:32px; }
.top-nav a { padding:19px 8px 16px; color:#3d4144; font-size:14px; font-weight:600; border-bottom:3px solid transparent; }
.top-nav > a { flex:0 0 auto; width:auto; text-align:center; }
.top-nav a:hover { color:var(--blue); text-decoration:none; }
.top-nav a.active { color:var(--blue); text-decoration:none; border-color:var(--blue); }
.top-nav:has(> a:hover) a.active,
.top-nav:has(> .nav-dropdown:hover) a.active { border-color:transparent; }
.top-nav > a:hover,
.nav-dropdown:hover > .nav-parent > a { border-color:var(--blue); }
.nav-toggle { display:none; border:0; background:none; font-size:23px; }
.nav-dropdown { position:relative; align-self:stretch; flex:0 0 auto; width:auto; display:flex; align-items:stretch; }
.nav-parent { position:relative; display:flex; align-items:stretch; }
.nav-parent > a { width:auto; display:flex; align-items:center; justify-content:center; padding-right:27px; }
.dropdown-toggle { position:absolute; right:7px; top:0; bottom:3px; width:20px; padding:0; color:#6f777d; background:none; border:0; cursor:pointer; font-size:12px; }
.dropdown-menu { position:absolute; top:100%; left:0; width:100%; min-width:0; display:none; padding:8px 0; background:#fff; border:0; box-shadow:0 5px 12px rgba(0,0,0,.13); }
.dropdown-menu a { display:block; padding:9px 12px; color:#3d4144; border:0; font-size:13px; font-weight:500; white-space:nowrap; }
.dropdown-menu a:hover,.dropdown-menu a.active { color:var(--blue); background:#f5f7f8; text-decoration:none; border:0; }
.nav-dropdown:hover .dropdown-menu,.nav-dropdown:focus-within .dropdown-menu,.nav-dropdown.open .dropdown-menu { display:block; }
.nav-dropdown.active > .nav-parent > a { color:var(--blue); border-color:var(--blue); }
.layout { max-width:1280px; margin:0 auto; padding:42px 28px 80px; display:grid; grid-template-columns:250px minmax(0,1fr); gap:56px; }
.author-profile { position:sticky; top:105px; align-self:start; }
.author-avatar { display:block; width:190px; height:190px; object-fit:cover; border-radius:50%; }
.author-content h2 { margin:18px 0 3px; color:#3d4144; font-size:22px; line-height:1.2; }
.author-bio { margin:0 0 18px; font-size:14px; }
.author-links { margin:0; padding:0; list-style:none; font-size:13px; }
.author-links li { margin:8px 0; }
.author-links a { color:var(--text); }
.icon { display:inline-grid; width:20px; color:var(--muted); font-size:12px; font-weight:700; text-align:center; }
.brand-icon { height:16px; background-color:currentColor; vertical-align:-2px; -webkit-mask-position:center; mask-position:center; -webkit-mask-repeat:no-repeat; mask-repeat:no-repeat; -webkit-mask-size:16px 16px; mask-size:16px 16px; }
.github-icon { -webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 .5C5.73.5.75 5.65.75 12.08c0 5.15 3.22 9.5 7.69 11.04.56.11.77-.25.77-.56v-2.17c-3.13.7-3.79-1.37-3.79-1.37-.51-1.34-1.25-1.7-1.25-1.7-1.02-.72.08-.7.08-.7 1.13.08 1.72 1.19 1.72 1.19 1 1.76 2.63 1.25 3.27.96.1-.75.39-1.25.71-1.54-2.5-.29-5.13-1.28-5.13-5.71 0-1.26.44-2.29 1.16-3.1-.12-.29-.5-1.47.11-3.06 0 0 .95-.31 3.09 1.18A10.5 10.5 0 0 1 12 6.15c.96 0 1.92.13 2.82.39 2.14-1.49 3.08-1.18 3.08-1.18.62 1.59.23 2.77.12 3.06.72.81 1.16 1.84 1.16 3.1 0 4.44-2.64 5.41-5.15 5.7.4.36.76 1.08.76 2.18v3.16c0 .31.2.68.78.56 4.46-1.54 7.68-5.89 7.68-11.04C23.25 5.65 18.27.5 12 .5Z'/%3E%3C/svg%3E"); mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 .5C5.73.5.75 5.65.75 12.08c0 5.15 3.22 9.5 7.69 11.04.56.11.77-.25.77-.56v-2.17c-3.13.7-3.79-1.37-3.79-1.37-.51-1.34-1.25-1.7-1.25-1.7-1.02-.72.08-.7.08-.7 1.13.08 1.72 1.19 1.72 1.19 1 1.76 2.63 1.25 3.27.96.1-.75.39-1.25.71-1.54-2.5-.29-5.13-1.28-5.13-5.71 0-1.26.44-2.29 1.16-3.1-.12-.29-.5-1.47.11-3.06 0 0 .95-.31 3.09 1.18A10.5 10.5 0 0 1 12 6.15c.96 0 1.92.13 2.82.39 2.14-1.49 3.08-1.18 3.08-1.18.62 1.59.23 2.77.12 3.06.72.81 1.16 1.84 1.16 3.1 0 4.44-2.64 5.41-5.15 5.7.4.36.76 1.08.76 2.18v3.16c0 .31.2.68.78.56 4.46-1.54 7.68-5.89 7.68-11.04C23.25 5.65 18.27.5 12 .5Z'/%3E%3C/svg%3E"); }
.scholar-icon { -webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 3 1 9l4 2.18v6L12 21l7-3.82v-6L21 10.09V17h2V9L12 3Zm6.91 6L12 12.77 5.09 9 12 5.23 18.91 9ZM17 15.97l-5 2.73-5-2.73v-3.7L12 15l5-2.73v3.7Z'/%3E%3C/svg%3E"); mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M12 3 1 9l4 2.18v6L12 21l7-3.82v-6L21 10.09V17h2V9L12 3Zm6.91 6L12 12.77 5.09 9 12 5.23 18.91 9ZM17 15.97l-5 2.73-5-2.73v-3.7L12 15l5-2.73v3.7Z'/%3E%3C/svg%3E"); }
.follow-toggle { display:none; }
.page-content { min-width:0; max-width:900px; }
.anchor-section { padding:18px 0 24px; scroll-margin-top:78px; }
.about { padding-top:0; }
.about h1,.section-title { margin:0 0 22px; padding-bottom:10px; color:#222831; border-bottom:1px solid var(--border); font-size:32px; line-height:1.3; font-weight:600; }
.about p { margin:0 0 12px; text-align:left; }
.section-title { margin-top:24px; font-size:30px; }
.section-title span { display:inline-block; margin-right:8px; font-size:27px; vertical-align:1px; }
.anchor-section h2 { margin:28px 0 12px; color:#31363b; font-size:22px; }
.plain-list,.publication-list,.project-list { margin:0; padding-left:22px; }
.plain-list li,.publication-list li,.project-list li { margin:8px 0; padding-left:3px; }
.news-list { overflow-y:auto; scrollbar-gutter:stable; }
.news-list li { margin:6px 0; }
.news-list b { color:#444; }
.publication-list { font-family:Arial,sans-serif; font-size:15px; }
.publication-list li { margin:10px 0; text-align:left; }
.pub-tag { color:#e51919; font-weight:700; white-space:nowrap; }
.notice { color:var(--muted); font-style:italic; }
.research-placeholder { min-height:220px; display:flex; align-items:center; justify-content:center; margin-top:12px; color:#9ba1a5; background:#fafafa; border:1px dashed #d9dddf; }
.research-placeholder p { margin:0; }
.empty-page { min-height:220px; display:flex; align-items:center; justify-content:center; color:#9ba1a5; }
.empty-page p { margin:0; }
.breadcrumb { margin:0 0 12px; color:#8b9398; font-size:12px; }
.collaborations-intro { color:var(--muted); }
.collaborators-list { display:grid; gap:24px; margin-top:30px; }
.collaborator-card { display:grid; grid-template-columns:76px minmax(0,1fr); gap:22px; padding:24px 0; border-top:1px solid var(--border); }
.collaborator-card:last-child { border-bottom:1px solid var(--border); }
.collaborator-avatar { display:grid; place-items:center; width:72px; height:72px; color:#fff; background:#2f7fba; border-radius:50%; font-size:20px; font-weight:700; letter-spacing:.5px; }
.collaborator-heading { display:flex; justify-content:space-between; gap:20px; align-items:flex-start; }
.collaborator-heading h2 { margin:0 0 3px; font-size:22px; }
.collaborator-heading p { margin:0; color:var(--muted); font-size:14px; }
.collaborator-heading > a { flex:0 0 auto; font-size:14px; }
.collaborator-details h3 { margin:20px 0 6px; color:#31363b; font-size:15px; }
.research-keywords { margin:0; color:var(--muted); font-size:14px; }
.collaboration-publications { margin:0; padding-left:20px; font-size:14px; }
.collaboration-publications li { margin:8px 0; padding-left:2px; }
.publications-page h2 { margin:30px 0 12px; color:#31363b; font-size:22px; }
.service-section { margin-top:34px; }
.service-section h2 { display:inline-block; margin:0 0 16px; padding-bottom:7px; color:#174b91; border-bottom:2px solid #174b91; font-size:18px; }
.service-table { border-top:1px solid #e5e8ea; }
.service-row { padding:13px 0; border-bottom:1px solid #e5e8ea; }
.conference-service .service-row { display:grid; grid-template-columns:minmax(0,1fr) 110px 60px; gap:24px; align-items:start; }
.conference-service .service-header { color:#31363b; }
.research-toc { display:flex; flex-wrap:wrap; gap:8px 18px; margin:4px 0 30px; padding:14px 18px; background:#f7f8f8; border-left:3px solid var(--blue); }
.research-toc a { font-size:13px; font-weight:600; }
.research-block { padding:18px 0 26px; scroll-margin-top:82px; }
.research-block + .research-block { border-top:1px solid var(--border); }
.research-block h2 { margin:0 0 15px; color:#31363b; font-size:22px; }
.research-block-placeholder { min-height:105px; background:#fafafa; border:1px dashed #d9dddf; }
.school-box { display:grid; grid-template-columns:92px 1fr; gap:22px; align-items:center; margin:12px 0 25px; }
.school-logo { width:80px; height:80px; display:grid; place-items:center; color:#fff; background:#1b5195; border-radius:50%; font-weight:700; font-size:14px; }
.school-box p { margin:4px 0; }
footer { margin-top:32px; padding:24px 0; color:#9ba1a5; border-top:1px solid var(--border); font-size:12px; }
@media (min-width:1100px) { .layout { grid-template-columns:270px minmax(0,1fr); gap:70px; } .page-content { max-width:930px; } }
@media (max-width:850px) {
  .masthead-inner { justify-content:space-between; }
  .site-title,.nav-toggle { display:block; }
  .top-nav { position:absolute; top:64px; left:0; right:0; display:none; padding:8px 22px 15px; background:#fff; border-bottom:1px solid var(--border); box-shadow:0 5px 10px rgba(0,0,0,.05); }
  .top-nav.open { display:flex; flex-direction:column; align-items:stretch; gap:0; }
  .top-nav a { padding:9px 4px; border:0; }
  .top-nav > a,.nav-dropdown { width:100%; flex-basis:auto; text-align:left; }
  .nav-dropdown { display:block; }
  .nav-parent { justify-content:space-between; }
  .nav-parent > a { flex:1; }
  .dropdown-toggle { position:static; width:42px; font-size:16px; }
  .dropdown-menu { position:static; min-width:0; display:none; padding:3px 0 7px 17px; border:0; box-shadow:none; }
  .conference-service .service-row { grid-template-columns:minmax(0,1fr) 90px 45px; gap:12px; }
  .collaborator-card { grid-template-columns:58px minmax(0,1fr); gap:14px; }
  .collaborator-avatar { width:54px; height:54px; font-size:16px; }
  .nav-dropdown:hover .dropdown-menu { display:none; }
  .nav-dropdown.open .dropdown-menu { display:block; }
  .layout { grid-template-columns:1fr; gap:25px; padding-top:28px; }
  .author-profile { position:static; display:grid; grid-template-columns:110px 1fr auto; gap:18px; align-items:center; }
  .author-avatar { width:110px; height:110px; }
  .author-content h2 { margin-top:0; }
  .author-links { display:none; grid-column:1/-1; }
  .author-links.open { display:block; }
  .follow-toggle { display:block; padding:7px 12px; color:#fff; background:var(--blue); border:0; border-radius:4px; }
}
@media (max-width:520px) {
  body { font-size:15px; }
  .masthead-inner,.layout { padding-left:18px; padding-right:18px; }
  .author-profile { grid-template-columns:82px 1fr auto; gap:12px; }
  .author-avatar { width:82px; height:82px; }
  .author-content h2 { font-size:19px; }
  .author-bio { margin-bottom:0; }
  .about h1,.section-title { font-size:27px; }
  .section-title span { font-size:23px; }
  .school-box { grid-template-columns:1fr; }
  .publication-list li { text-align:left; }
}