/* A small, self-contained academic layout. No scripts or external fonts required. */
:root {
  --paper: #ffffff;
  --ink: #252b33;
  --muted: #58616e;
  --accent: #205fa2;
  --rule: #dfe5ec;
  --soft: #f4f7fb;
  --width: 940px;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 24px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 15px/1.7 Arial, "Microsoft YaHei", sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 4px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; border-radius: 1px; }
img { max-width: 100%; }
p { margin: 0 0 12px; }
strong { font-weight: 600; }
h1, h2, h3 { color: var(--ink); line-height: 1.35; }
h1 { font-size: 40px; font-weight: 600; letter-spacing: -.03em; line-height: 1.12; margin: 0 0 13px; }
h2 { font-size: 24px; font-weight: 600; letter-spacing: -.025em; margin: 0; }
h3 { font-size: 16px; font-weight: 600; margin: 0 0 8px; }
.site-shell { width: min(var(--width), calc(100% - 80px)); margin: 0 auto; }
.skip-link { position: absolute; left: 20px; top: -80px; z-index: 10; background: var(--ink); color: white; padding: 10px 18px; }
.skip-link:focus { top: 12px; }
.site-header { display: flex; justify-content: space-between; align-items: center; gap: 24px; min-height: 80px; border-bottom: 1px solid var(--rule); }
.wordmark { color: var(--ink); font-size: 17px; font-weight: 600; text-decoration: none; }
.site-header nav { display: flex; gap: 28px; font-size: 14px; }
.site-header nav a { color: var(--muted); text-decoration: none; }
.site-header nav a:hover, .site-header nav a[aria-current="page"] { color: var(--accent); text-decoration: underline; }
.eyebrow { color: var(--accent); font-size: 11px; font-weight: 600; letter-spacing: .07em; text-transform: uppercase; margin: 0 0 12px; }
.hero { display: grid; grid-template-columns: minmax(0, 1fr) 180px; gap: 45px; padding: 38px 0 32px; }
.name-zh { display: inline-block; font-family: "Microsoft YaHei", sans-serif; color: var(--muted); font-size: 22px; font-weight: 400; letter-spacing: .08em; vertical-align: .16em; margin-left: 12px; }
.hero-role { color: var(--muted); font-size: 14px; margin-bottom: 20px; }
.hero-bio { color: var(--muted); margin-bottom: 15px; }
.hero-bio a { text-decoration: none; }
.hero-bio a:hover { text-decoration: underline; }
.contact-links { display: flex; gap: 9px 22px; flex-wrap: wrap; font-size: 13px; margin-top: 23px; }
.portrait { margin: 0; }
.portrait img { width: 180px; height: 207px; display: block; object-fit: cover; object-position: center 25%; border-radius: 3px; }
.home-section { border-top: 1px solid var(--rule); padding: 29px 0 34px; }
.section-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 24px; margin-bottom: 22px; }
.section-link { flex-shrink: 0; font-size: 13px; }
.research-list { margin: 0; padding-left: 19px; color: var(--muted); }
.research-list li { padding-left: 3px; }
.research-list li + li { margin-top: 13px; }
.research-list strong { color: var(--ink); }
.section-note { color: var(--muted); font-size: 12px; margin: -9px 0 20px; }
.paper-list { display: grid; gap: 30px; }
.paper { display: grid; grid-template-columns: minmax(0, 1fr); gap: 24px; align-items: start; }
.paper-with-image { grid-template-columns: 180px minmax(0, 1fr); }
.paper-image { display: block; width: 180px; padding-top: 3px; }
.paper-image img { display: block; width: 180px; height: 120px; object-fit: contain; background: #fff; }
.paper-meta { display: flex; flex-wrap: wrap; gap: 5px 13px; margin-bottom: 5px; font-size: 12px; line-height: 1.5; }
.paper-venue { color: var(--accent); font-weight: 600; }
.paper-distinction { color: var(--muted); font-size: 11px; }
.paper h3 { font-size: 16px; line-height: 1.5; margin-bottom: 6px; }
.paper h3 a { color: var(--ink); text-decoration: none; }
.paper h3 a:hover { color: var(--accent); text-decoration: underline; }
.paper-authors { font-size: 12px; line-height: 1.65; color: var(--muted); margin-bottom: 7px; }
.paper-authors strong { color: var(--ink); }
.paper-summary { color: var(--muted); font-size: 14px; line-height: 1.65; margin-bottom: 8px; }
.paper-links { display: flex; gap: 19px; font-size: 12px; }
.page-intro { padding: 43px 0 32px; }
.page-intro > p:not(.eyebrow):not(.section-note) { color: var(--muted); font-size: 16px; }
.page-intro .section-note { margin: 19px 0 0; }
.page-links { display: flex; gap: 12px 25px; flex-wrap: wrap; font-size: 13px; margin-top: 17px; }
.publication-year { border-top: 1px solid var(--rule); padding: 28px 0 32px; }
.publication-year > h2 { margin-bottom: 25px; }
.publication-year .paper-list { gap: 28px; }
.ongoing-section { border-top: 1px solid var(--rule); padding: 28px 0 35px; }
.ongoing-section h2 { margin-bottom: 24px; }
.ongoing-section article + article { margin-top: 24px; }
.ongoing-section article > p { color: var(--muted); font-size: 14px; }
.ongoing-section .paper-authors { font-size: 12px; }
.download-links { display: flex; gap: 13px; flex-wrap: wrap; margin-top: 22px; }
.download-links a { border: 1px solid var(--rule); padding: 9px 15px; background: var(--soft); font-size: 14px; text-decoration: none; }
.download-links a:hover { border-color: var(--accent); }
.download-links span { font-size: 11px; margin-left: 14px; }
.cv-section { display: grid; grid-template-columns: 175px minmax(0, 1fr); gap: 35px; border-top: 1px solid var(--rule); padding: 30px 0; }
.cv-section > h2 { font-size: 21px; }
.cv-entries { display: grid; gap: 24px; }
.entry-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; }
.entry-heading h3 { margin-bottom: 5px; }
.entry-date { flex-shrink: 0; color: var(--muted); font-size: 12px; line-height: 1.6; margin: 0 0 6px; }
.entry-role { color: var(--ink); font-size: 14px; margin-bottom: 6px; }
.cv-entry > p:last-child { color: var(--muted); font-size: 14px; margin-bottom: 0; }
.honors-list { margin: 0; font-size: 14px; }
.honors-list > div { display: flex; justify-content: space-between; gap: 25px; margin-bottom: 13px; }
.honors-list > div:last-child { margin-bottom: 0; }
.honors-list dt { color: var(--ink); }
.honors-list dd { flex-shrink: 0; font-size: 12px; color: var(--muted); margin: 0; }
.service-columns { display: grid; gap: 19px; }
.service-columns h3 { margin-bottom: 5px; }
.service-columns p { font-size: 14px; color: var(--muted); margin: 0; }
.cv-publications-link { font-size: 14px; margin: 0 0 35px; color: var(--muted); }
.paper-detail { max-width: 820px; padding: 35px 0 55px; }
.back-link { font-size: 13px; margin-bottom: 28px; }
.paper-detail > h1 { font-size: 34px; line-height: 1.3; margin: 0 0 22px; }
.paper-detail > .paper-authors { font-size: 14px; margin-bottom: 23px; }
.paper-detail > .paper-summary { font-size: 17px; line-height: 1.75; margin-bottom: 23px; }
.paper-detail > .paper-links { font-size: 14px; }
.citation { margin-top: 40px; padding-top: 25px; border-top: 1px solid var(--rule); }
.citation h2 { font-size: 21px; margin-bottom: 15px; }
.citation p { font-size: 14px; color: var(--muted); }
.site-footer { display: flex; justify-content: space-between; gap: 12px 25px; flex-wrap: wrap; border-top: 1px solid var(--rule); padding: 22px 0 32px; color: var(--muted); font-size: 11px; }
.site-footer a { text-decoration: none; overflow-wrap: anywhere; }
@media (max-width: 760px) {
  .site-shell { width: calc(100% - 48px); }
  .hero { gap: 30px; grid-template-columns: minmax(0, 1fr) 145px; }
  .portrait img { width: 145px; height: 173px; }
  .name-zh { display: block; margin: 10px 0 0; }
  .cv-section { grid-template-columns: 1fr; gap: 21px; }
  .entry-heading { flex-wrap: wrap; gap: 0 16px; }
}
@media (max-width: 560px) {
  .site-shell { width: calc(100% - 40px); }
  .site-header { min-height: 73px; gap: 12px; }
  .wordmark { font-size: 15px; }
  .site-header nav { gap: 16px; font-size: 12px; }
  .hero { grid-template-columns: minmax(0, 1fr) 86px; gap: 19px 20px; padding: 33px 0; }
  .hero-copy { display: contents; }
  .hero h1 { grid-column: 1; align-self: end; font-size: 34px; margin: 0; }
  .name-zh { font-size: 20px; margin-top: 8px; }
  .hero-role { grid-column: 1; font-size: 12px; margin: 0; }
  .portrait { grid-column: 2; grid-row: 1 / span 2; margin: 0; }
  .portrait img { width: 86px; height: 102px; }
  .hero-bio { grid-column: 1 / -1; font-size: 14px; margin: 0; }
  .contact-links { grid-column: 1 / -1; gap: 8px 17px; margin: 0; }
  .research-list { font-size: 14px; }
  .section-heading { gap: 13px; align-items: baseline; flex-wrap: wrap; margin-bottom: 20px; }
  h2 { font-size: 23px; }
  .section-link { font-size: 12px; }
  .paper, .paper-with-image { grid-template-columns: 1fr; gap: 13px; }
  .paper-image { width: 180px; padding-top: 0; }
  .paper-meta { gap: 5px 12px; align-items: baseline; }
  .paper h3 { font-size: 15px; }
  .paper-list, .publication-year .paper-list { gap: 28px; }
  .paper-summary { font-size: 13px; }
  .page-intro { padding: 33px 0 27px; }
  .page-intro h1 { font-size: 34px; }
  .page-intro > p:not(.eyebrow):not(.section-note) { font-size: 15px; }
  .page-links { flex-direction: column; gap: 10px; }
  .publication-year { padding: 25px 0 30px; }
  .publication-year h2 { font-size: 22px; }
  .cv-section { padding: 26px 0; }
  .entry-heading { display: block; }
  .entry-heading h3 { font-size: 15px; }
  .entry-date { font-size: 11px; }
  .honors-list > div { display: block; }
  .honors-list dd { margin-top: 3px; }
  .paper-detail > h1 { font-size: 27px; }
  .paper-detail > .paper-summary { font-size: 15px; }
  .site-footer { display: block; }
  .site-footer > span { display: block; margin-bottom: 5px; }
}
@media print {
  .site-header, .site-footer, .skip-link { display: none; }
  .site-shell { width: 100%; }
  .hero, .page-intro { padding-top: 0; }
  .paper, .cv-entry { break-inside: avoid; }
  a { color: inherit; }
}