:root{color-scheme:light;--bg:#fff;--text:#222;--link:#1772d0;--link-hover:#d57b13;--muted:#777;--subtle:#666;--year:#333;--border:#eee;--featured:#ffffe5;--award:#b25414;--footer:#888;--contact-separator:#999;--button-bg:#f6f8fa;--button-border:#d0d7de}
:root[data-theme="dark"]{color-scheme:dark;--bg:#0d1117;--text:#c9d1d9;--link:#58a6ff;--link-hover:#ffa657;--muted:#8b949e;--subtle:#9da7b3;--year:#e6edf3;--border:#30363d;--featured:#262514;--award:#ffa657;--footer:#8b949e;--contact-separator:#8b949e;--button-bg:#161b22;--button-border:#30363d}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px}
body{margin:0;background:var(--bg);color:var(--text);font-family:Lato,Arial,Helvetica,sans-serif;font-size:14px;line-height:1.65;transition:background-color .25s ease,color .25s ease}
main{max-width:840px;margin:auto;padding:52px 26px 20px}
a{color:var(--link);text-decoration:none}
a:hover,a:focus{color:var(--link-hover)}
a:focus-visible{outline:2px solid var(--link);outline-offset:5px}
h1{font-size:34px;font-weight:400;text-align:center;margin:0 0 17px;line-height:1.2}
h2{font-size:23px;font-weight:400;margin:0 0 18px;line-height:1.3}
h3{font-size:14px;line-height:1.5;margin:0 0 4px;font-weight:700}
h4{font-size:14px;font-weight:400;color:var(--subtle);margin:26px 0 16px}
p{margin:0 0 13px}
.intro{display:grid;grid-template-columns:1fr 230px;gap:42px;align-items:center}
.position{text-align:center;margin-bottom:20px}
.portrait{display:block;width:230px;height:230px;border-radius:50%;object-fit:cover;object-position:center}
.contact{display:flex;justify-content:center;gap:12px;margin:20px 0 0}
.contact span{color:var(--contact-separator)}
nav{display:flex;justify-content:center;gap:25px;padding:27px 0 21px;border-bottom:1px solid var(--border);margin-bottom:32px}
section{margin-bottom:37px}
.news{padding:0;list-style:none;margin:0}
.news li{display:grid;grid-template-columns:76px 1fr;gap:12px;margin:8px 0}
.news time{font-variant-numeric:tabular-nums;color:var(--muted)}
.section-note{margin-bottom:18px}
.paper{display:grid;grid-template-columns:105px 1fr;gap:20px;padding:19px 15px;margin:0 -15px}
.paper.featured{background:var(--featured)}
.paper-index{color:var(--muted);font-size:12px;padding-top:3px}
.paper-index span{display:block;color:var(--year);font-size:21px;font-weight:400;line-height:1.5}
.paper p{margin:0 0 4px}
.venue{font-style:italic}
.award{color:var(--award);font-weight:700}
.domestic p{margin-bottom:21px}
.muted{color:var(--muted);font-size:12px}
.education{margin:0}
.education div{display:grid;grid-template-columns:125px 1fr;margin-bottom:15px}
.education dt{color:var(--muted)}
.education dd{margin:0}
footer{border-top:1px solid var(--border);display:flex;justify-content:space-between;color:var(--footer);font-size:12px;padding-top:18px;margin-top:43px}
footer p{margin-bottom:8px}
.skip{position:absolute;top:-80px;background:var(--bg);padding:8px;z-index:1100}
.skip:focus{top:8px}
.theme-toggle{position:fixed;top:20px;right:24px;z-index:1000;display:flex;align-items:center;justify-content:center;width:42px;height:42px;padding:0;border:1px solid var(--button-border);border-radius:50%;background:var(--button-bg);color:var(--text);font-family:inherit;font-size:23px;line-height:1;cursor:pointer;transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .2s ease}
.theme-toggle:hover{transform:scale(1.08)}
.theme-toggle:focus-visible{outline:2px solid var(--link);outline-offset:3px}
@media(max-width:620px){main{padding:30px 23px 16px}.intro{display:flex;flex-direction:column-reverse;gap:25px}.portrait{width:175px;height:175px}h1{font-size:31px}nav{gap:18px;font-size:13px}.paper{grid-template-columns:72px 1fr;gap:14px;padding:16px 10px;margin:0 -10px}.education div{grid-template-columns:105px 1fr}footer{display:block}.news li{grid-template-columns:64px 1fr;gap:9px}.theme-toggle{top:12px;right:12px;width:38px;height:38px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}body,.theme-toggle{transition:none}}