/* Adapted from Minimal Light by Yaoyao Liu, CC0-1.0.
   Academic typography and responsive layout customized for Meihao Fan. */
:root { color-scheme:dark; --bg:#0c141e; --ink:#dce6ed; --muted:#94a6b5; --accent:#71d7d0; --line:#253443; --tint:#122331; --panel:#101e2b; --glow:rgba(65,155,166,.10); }
:root[data-theme="light"] { color-scheme:light; --bg:#f8fafb; --ink:#203444; --muted:#526776; --accent:#126573; --line:#d7e3e9; --tint:#e9f3f5; --panel:#fff; --glow:rgba(60,154,169,.08); }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; scroll-padding-top:24px; }
body { margin:0; background:var(--bg); color:var(--ink); font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI",Arial,"Noto Sans CJK SC","PingFang SC","Microsoft YaHei",sans-serif; -webkit-font-smoothing:antialiased; background-image:radial-gradient(ellipse at 8% 0%,var(--glow),transparent 45%); }
a { color:var(--accent); text-decoration:none; text-underline-offset:3px; }
a:hover { text-decoration:underline; }
a:focus-visible { outline:2px solid var(--accent); outline-offset:5px; border-radius:2px; }
img { max-width:100%; height:auto; }
.wrapper { display:grid; grid-template-columns:224px minmax(0,1fr); gap:78px; max-width:1170px; margin:0 auto; padding:48px 40px 24px; }
.profile { align-self:start; position:sticky; top:48px; padding-top:14px; }
.portrait { display:block; width:160px; margin-bottom:23px; }
.portrait img { display:block; width:160px; height:160px; object-fit:cover; border-radius:50%; border:3px solid var(--line); box-shadow:0 0 0 7px var(--bg),0 0 0 8px var(--line); }
.profile-name { display:block; color:var(--ink); font:600 31px/1.2 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-.7px; }
.name-zh { margin:6px 0 22px; font-size:17px; letter-spacing:4px; color:var(--muted); }
.position { margin:0; font-weight:600; font-size:15px; }
.affiliation { margin:1px 0; font-size:14px; }
.location { margin:4px 0 15px; font-size:13px; color:var(--muted); }
.email { font-size:14px; }
.profile-links { display:flex; flex-wrap:wrap; gap:15px; margin:15px 0 22px; font-size:13px; font-weight:600; }
.cv-button { display:flex; justify-content:space-between; align-items:center; width:175px; border:1px solid var(--line); border-radius:4px; padding:8px 13px; font-size:13px; font-weight:600; }
.cv-button:hover { background:var(--tint); border-color:var(--accent); text-decoration:none; }
.profile-note { font-size:12px; line-height:1.9; color:var(--muted); margin-top:25px; }
.main-column { min-width:0; }
.site-nav { display:flex; gap:30px; align-items:center; border-bottom:1px solid var(--line); margin-bottom:40px; font-size:13px; font-weight:600; }
.site-nav a { color:var(--muted); padding:8px 0 15px; }
.site-nav a[aria-current] { color:var(--accent); border-bottom:2px solid var(--accent); margin-bottom:-1px; }
.eyebrow { color:var(--accent); font-size:10px; font-weight:700; letter-spacing:2px; margin:0 0 12px; }
h1,h2,h3 { color:var(--ink); line-height:1.25; }
h1 { font:650 40px/1.17 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-.8px; margin:0 0 26px; }
h2 { font:600 23px/1.3 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; margin:42px 0 19px; padding-bottom:10px; border-bottom:1px solid var(--line); }
h3 { font-size:17px; margin:25px 0 12px; }
p { margin:0 0 17px; }
strong { font-weight:600; }
.content { overflow-wrap:break-word; }
.content a { text-decoration:underline; text-decoration-color:var(--line); }
.content a:hover { text-decoration-color:var(--accent); }
.content ul,.content ol { padding-left:21px; margin:0 0 20px; }
.content li { margin-bottom:12px; padding-left:2px; }
.content li::marker { color:var(--accent); }
.content li ul { margin-top:8px; margin-bottom:0; font-size:14px; color:var(--muted); }
.content li p { margin:0; }
.home .content > h2:first-child { display:none; }
.home .content > p:nth-of-type(3) { background:var(--tint); border-left:3px solid var(--accent); padding:13px 17px; margin:24px 0; font-size:14px; }
.home .content > p:nth-of-type(4) { font-size:13px; }
#selected-research + ul { list-style:none; padding:0; display:grid; gap:12px; }
#selected-research + ul > li { border:1px solid var(--line); border-radius:8px; background:var(--panel); padding:18px 20px; margin:0; font-size:14px; transition:border-color .18s,transform .18s; }
#selected-research + ul > li strong { color:var(--accent); }
#selected-publications + ul,#manuscripts + ul { list-style:none; padding:0; }
#selected-publications + ul > li,#manuscripts + ul > li { font-size:14px; padding:0 0 17px; margin:0 0 17px; border-bottom:1px solid var(--line); }
.venue { font-size:13px; font-weight:600; color:var(--accent); }
.academic-list { display:grid; gap:24px; }
.academic-item { border:1px solid var(--line); border-radius:8px; background:var(--panel); padding:23px; }
.academic-item h2 { font-family:inherit; font-size:18px; font-weight:600; border:0; padding:0; margin:0 0 8px; letter-spacing:0; }
.academic-item h2 a { text-decoration:none; }
.academic-item p { font-size:14px; margin:8px 0 0; }
.academic-item .item-description { color:var(--muted); }
.academic-item .item-venue { font-size:12px; color:var(--accent); font-weight:600; margin-bottom:8px; }
.paper-link { display:inline-block; margin-top:10px; font-size:12px; font-weight:600; }
.site-footer { border-top:1px solid var(--line); margin-top:52px; padding-top:18px; display:flex; justify-content:space-between; gap:16px; font-size:11px; color:var(--muted); }
.skip-link { position:absolute; left:16px; top:-80px; background:var(--bg); padding:8px 12px; z-index:10; }
.skip-link:focus { top:8px; }
pre { overflow-x:auto; padding:16px; background:var(--tint); }
table { border-collapse:collapse; width:100%; font-size:14px; }
th,td { padding:8px; border-bottom:1px solid var(--line); text-align:left; }
@media (max-width:900px) {
 .wrapper { grid-template-columns:190px minmax(0,1fr); gap:40px; padding:32px 28px; }
 .profile { top:32px; }
 h1 { font-size:33px; }
 .site-nav { gap:23px; }
}
@media (max-width:680px) {
 body { font-size:15px; }
 .wrapper { display:block; padding:25px 22px; }
 .profile { position:static; display:flex; gap:22px; padding:0 0 26px; }
 .portrait { flex:0 0 88px; margin:4px 0 0; }
 .portrait img { width:88px; height:88px; }
 .profile-name { font-size:27px; }
 .name-zh { margin:4px 0 9px; font-size:14px; }
 .position,.affiliation,.email { font-size:12px; }
 .location { display:none; }
 .email { display:block; margin-top:7px; }
 .profile-links { gap:13px; margin:10px 0; font-size:12px; }
 .cv-button { width:146px; font-size:12px; padding:5px 10px; }
 .profile-note { display:none; }
 .site-nav { gap:0; justify-content:space-between; margin-bottom:29px; }
 h1 { font-size:31px; letter-spacing:-.5px; }
 h2 { font-size:24px; margin-top:33px; }
 .site-footer { flex-direction:column; gap:4px; }
}
@media (prefers-reduced-motion:reduce) { html { scroll-behavior:auto; } }
@media print { .profile,.site-nav,.site-footer,.skip-link { display:none; } .wrapper { display:block; padding:0; } a { color:inherit; } }

.intro-heading h1 span { color:var(--accent); }
.intro-heading { position:relative; padding-bottom:4px; }
.eyebrow { font-family:ui-monospace,SFMono-Regular,Consolas,monospace; }
.theme-toggle { margin-left:auto; margin-bottom:7px; flex-shrink:0; width:32px; height:32px; border:1px solid var(--line); border-radius:50%; background:var(--panel); color:var(--accent); cursor:pointer; font-size:18px; line-height:1; }
.theme-toggle:hover { border-color:var(--accent); }
.theme-toggle:focus-visible { outline:2px solid var(--accent); outline-offset:4px; }
#selected-research + ul > li:hover { border-color:var(--accent); transform:translateY(-2px); }
#selected-research + ul > li a { text-decoration:none; }
@media (max-width:680px) { .site-nav { gap:16px; } .theme-toggle { margin-left:0; } .intro-heading h1 { font-size:30px; } }
@media (prefers-reduced-motion:reduce) { #selected-research + ul > li { transition:none; } #selected-research + ul > li:hover { transform:none; } }
@media print { :root { --ink:#222; --accent:#174e67; --bg:#fff; --panel:#fff; --muted:#555; --line:#ddd; --tint:#fff; color-scheme:light; } body { background:#fff; } }

.project-detail .content > h2:first-child { display:none; }

.citation { margin-top:32px; padding:14px 18px; border:1px solid var(--line); border-radius:6px; font-size:13px; }
.citation summary { cursor:pointer; color:var(--accent); }
.citation p { margin:12px 0 0; }