:root{--text:#23272d;--muted:#5d6672;--link:#15549b;--line:#dee2e6;--surface:#fff;--highlight:#f3f7fc}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--surface);color:var(--text);font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Arial,"Noto Sans",sans-serif;-webkit-font-smoothing:antialiased}
.wrap{max-width:1030px;margin:0 auto;padding:0 28px}
a{color:var(--link);text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:2px}
a:focus-visible{outline:2px solid var(--link);outline-offset:3px}
.skip-link{position:absolute;top:-50px;left:20px;background:#fff;padding:8px;z-index:8}.skip-link:focus{top:8px}
.topbar{border-bottom:1px solid var(--line)}.topbar-inner{min-height:54px;display:flex;gap:25px;align-items:center;justify-content:space-between}
.wordmark{font-size:17px;font-weight:700;color:var(--text);white-space:nowrap}.wordmark span{font-size:13px;color:var(--muted);font-weight:400;margin-left:4px}
.topbar nav{display:flex;flex-wrap:wrap;gap:19px;font-size:13px}.topbar nav a{color:#3f4852}
.profile{display:flex;justify-content:space-between;align-items:center;gap:28px;padding:26px 0 22px;border-bottom:1px solid var(--line)}
h1{font-size:31px;letter-spacing:-.035em;line-height:1.18;margin:0 0 9px}h1 span{font-size:20px;letter-spacing:0;font-weight:400;color:#555;margin-left:8px}
.profile p{margin:5px 0}.profile .appointment{font-weight:650;font-size:15.5px}.profile-links{font-size:14px!important;margin-top:13px!important}.profile-links span{color:#9ca3af;margin:0 8px}
.profile-photo{flex:0 0 145px;width:145px;height:145px;position:relative;margin:0;border:1px solid #e5e7eb;border-radius:2px;overflow:hidden;background:#eef1f5}
.profile-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.section{padding-top:20px;scroll-margin-top:14px}.section h2{font-size:20px;letter-spacing:-.015em;line-height:1.3;margin:0 0 9px;font-weight:700}
.section p{margin:0 0 8px}.note{font-size:14px;color:#424b56;background:var(--highlight);border-left:3px solid #c5d9ed;padding:7px 11px;margin-top:12px!important}
.two-columns{display:grid;grid-template-columns:1.05fr .95fr;gap:36px}.two-columns .section{padding-top:19px}
.news-list,.research-list{padding:0;margin:0;list-style:none}.news-list li{display:grid;grid-template-columns:75px 1fr;gap:8px;margin:0 0 8px;font-size:14px;line-height:1.45}
.news-list time{font-size:12px;color:var(--muted);font-weight:650;padding-top:2px;white-space:nowrap}.research-list li{margin:0 0 10px;line-height:1.44;font-size:14px}.research-list strong{font-weight:650}
.publications{padding-top:26px}.heading-line{display:flex;align-items:baseline;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);padding-bottom:9px}.heading-line h2{margin:0}.heading-line>a{font-size:13px;white-space:nowrap}
.year-group{display:grid;grid-template-columns:72px 1fr;gap:8px;align-items:start;margin-top:13px}.year-group h3{font-size:16px;margin:0;padding-top:1px;color:#343b44}
.paper-list{padding-left:20px;margin:0}.paper-list>li{padding-left:3px;margin:0 0 11px;line-height:1.4}.paper-list>li::marker{font-size:12px;color:#8b919b}
.paper-title{font-weight:620;color:var(--link);font-size:14.6px}.authors{margin-top:2px;color:#414953;font-size:13.5px}.venue{margin-top:1px;color:#424b57;font-size:13px}.venue em{font-weight:550}.venue a{margin-left:3px}
.footer{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;border-top:1px solid var(--line);padding-top:17px;padding-bottom:35px;margin-top:30px;color:var(--muted);font-size:12px}
@media(max-width:680px){.wrap{padding:0 19px}.topbar-inner{padding-top:11px;padding-bottom:11px;display:block}.topbar nav{gap:14px;margin-top:7px}.profile{gap:12px;align-items:flex-start;padding:20px 0 18px}h1{font-size:26px}h1 span{font-size:16px;margin-left:4px}.profile p{font-size:13.5px}.profile-photo{flex:0 0 90px;width:90px;height:90px}.profile-links{line-height:1.8}.profile-links span{margin:0 4px}.two-columns{grid-template-columns:1fr;gap:0}.year-group{grid-template-columns:1fr;gap:1px;margin-top:17px}.year-group h3{font-size:15px;margin:0 0 5px}.paper-title{font-size:14px}.heading-line{align-items:center}.heading-line>a{font-size:12px}.news-list li{grid-template-columns:75px 1fr}}
@media(max-width:390px){.profile-photo{flex:0 0 75px;width:75px;height:75px}.profile-links{font-size:12.5px!important}.topbar nav{gap:12px;font-size:12.5px}.wrap{padding:0 15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}


/* Bilingual site: English is readable with JavaScript disabled. */
.i18n-zh{display:none}
html[lang="zh-CN"] .i18n-en{display:none!important}
html[lang="zh-CN"] .i18n-zh{display:revert}
.topbar-actions{display:flex;align-items:center;gap:20px;min-width:0}
.lang-switch{display:flex;align-items:center;gap:5px;white-space:nowrap;font-size:12px;color:#a1a9b2;flex-shrink:0}
.lang-switch button{padding:4px 5px;border:0;background:transparent;color:#657080;font:inherit;cursor:pointer}
.lang-switch button[aria-pressed="true"]{color:var(--link);font-weight:750}
.lang-switch button:focus-visible{outline:2px solid var(--link);outline-offset:2px}
.lang-switch button:hover{color:var(--link)}
.profile-photo{flex-basis:155px;width:155px;height:155px;background:#fff;border:1px solid #e3e6e9}
.profile-photo img{display:block;position:static;width:100%;height:100%;object-fit:cover;object-position:center top}
@media(max-width:780px){.topbar-inner{align-items:flex-start;flex-wrap:wrap;gap:8px}.topbar-actions{gap:12px}.topbar nav{gap:13px}}
@media(max-width:680px){.topbar-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;margin-top:7px}.topbar nav{margin-top:0;gap:12px}.lang-switch{margin-left:auto}.profile-photo{flex:0 0 96px;width:96px;height:112px}}
@media(max-width:390px){.profile-photo{flex-basis:80px;width:80px;height:98px}}



/* Compact academic author annotations */
.author-mark{font-size:10px;font-weight:650;vertical-align:super;line-height:0;color:inherit;margin-left:.02em}
.author-symbol-legend{margin:-4px 0 11px;color:#727b87;font-size:11.5px;line-height:1.5}
.authors .author-name{display:inline}