@font-face {
  font-family: "Outfit";
  src: url("assets/fonts/outfit-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --text-primary: #20252d;
  --text-secondary: #454d59;
  --text-tertiary: #657080;
  --bg-primary: #ffffff;
  --highlight-blue: #f0f7ff;
  --accent-blue: #2563eb;
  --accent-orange: #b76b20;
  --line: #e5eaf0;
  --link-color: #235caf;
  --font-heading: Palatino, "Palatino Linotype", "Book Antiqua", Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: "Outfit", "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}
::selection { background: #dceafa; color: #182d49; }
a { color: var(--link-color); text-decoration: none; transition: color .18s ease; }
a:hover { color: var(--accent-orange); }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 4px;
  border-radius: 2px;
}
img { display: block; max-width: 100%; }
figure, blockquote, p { margin: 0; }
button, summary { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
strong { font-weight: 600; }
.muted, .muted a { color: var(--text-secondary); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: -100px; left: 16px; z-index: 100; padding: 8px 16px; background: white; border: 1px solid var(--accent-blue); }
.skip-link:focus { top: 12px; }
.page-shell { width: min(940px, calc(100% - 400px)); margin: 0 auto; }
.page-section { scroll-margin-top: 38px; margin-top: 46px; }
.page-section:focus { outline: none; }

/* Section navigation adapted from the reference homepage. */
.section-nav {
  --indicator-y: 0px;
  --indicator-height: 30px;
  --indicator-x: 0px;
  --indicator-width: 56px;
  position: fixed;
  top: 50%;
  left: max(20px, calc(50% - 656px));
  width: 148px;
  transform: translateY(-50%);
  z-index: 20;
}
.section-nav__label { display: inline-block; margin: 0 0 16px 17px; font-family: var(--font-heading); font-size: 17px; color: var(--text-secondary); line-height: 1; }
.section-nav__track { position: relative; }
.section-nav__track::before { position: absolute; top: 0; bottom: 0; left: 0; width: 1px; background: var(--line); content: ""; }
.section-nav__indicator { position: absolute; top: 0; left: 0; width: 2px; height: var(--indicator-height); background: var(--accent-blue); transform: translateY(var(--indicator-y)); transition: height .2s ease, transform .3s ease; opacity: 0; }
.section-nav.is-ready .section-nav__indicator { opacity: 1; }
.section-nav__list { list-style: none; margin: 0; padding: 0; }
.section-nav__item { margin: 0; padding: 0; }
.section-nav__link { display: block; padding: 9px 4px 9px 17px; font-family: var(--font-heading); font-size: 15px; color: var(--text-tertiary); line-height: 1.3; transition: color .2s ease, transform .2s ease; }
.section-nav__link:hover, .section-nav__link.is-active { color: var(--link-color); transform: translateX(3px); }
.section-nav__link.is-active { font-weight: 600; }

/* Profile */
.profile { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 48px; align-items: center; margin-top: 66px; }
.name { display: flex; align-items: baseline; flex-wrap: wrap; gap: 12px; margin: 0 0 22px; font-family: var(--font-heading); font-size: 44px; font-weight: 400; line-height: 1.2; letter-spacing: -.025em; }
.profile-intro { margin-top: 12px; line-height: 1.7; }
.profile-portrait { margin: 0; }
.portrait-caption { margin-top: 12px; text-align: center; color: var(--text-secondary); font-size: 13px; line-height: 1.55; }
.avatar { width: 100%; height: auto; object-fit: contain; object-position: center; border-radius: 48px; box-shadow: 0 4px 16px rgb(30 37 46 / 5%); }
.profile-links { display: flex; gap: 12px 21px; flex-wrap: wrap; align-items: center; margin-top: 21px; }
.profile-link { display: inline-flex; align-items: center; gap: 7px; font-size: 15.5px; color: var(--link-color); }
.profile-link img, .profile-link svg { width: 22px; height: 22px; object-fit: contain; flex-shrink: 0; }

/* Main sections */
.section-heading { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 10px 20px; margin-bottom: 20px; }
.section-title { margin: 0; font-family: var(--font-heading); font-size: 31px; font-weight: 400; letter-spacing: 0; line-height: 1.25; }
.news-section { margin-top: 40px; }
.news-list { list-style: none; margin: 0; padding: 0; }
.news-list li { display: grid; grid-template-columns: 87px minmax(0, 1fr); gap: 15px; margin-top: 9px; font-size: 16px; }
.news-list time { color: var(--text-tertiary); font-size: 15px; font-variant-numeric: tabular-nums; }
.news-list em { font-style: normal; }
.news-archive { margin-top: 12px; }
.news-archive summary { width: fit-content; color: var(--link-color); font-size: 14px; cursor: pointer; }
.news-archive .news-list { margin-top: 12px; }

/* Publications: selected papers by default; all papers remain available. */
.research-heading { margin-bottom: 8px; }
.research-toggle { border: 0; border-bottom: 1px solid #b9cce7; padding: 2px 0; background: transparent; color: var(--link-color); font-size: 15.5px; cursor: pointer; }
.research-toggle:hover { color: var(--accent-orange); }
.paper-meta-note { margin: 0 0 18px; color: var(--text-tertiary); font-size: 14px; }
.paper-row { display: grid; grid-template-columns: 225px minmax(0, 1fr); gap: 27px; align-items: center; padding: 23px 18px; margin: 13px -18px; }
.highlight-paper { background: var(--highlight-blue); }
.paper-figure { display: block; min-width: 0; }
.paper-figure img { width: 100%; height: auto; max-height: 215px; object-fit: contain; transition: opacity .18s ease; }
.paper-figure:hover img { opacity: .85; }
.papertitle { margin: 0 0 8px; font-family: "Outfit", "Segoe UI", sans-serif; font-size: 18px; font-weight: 650; line-height: 1.45; color: var(--link-color); }
.papertitle a { color: inherit; }
.papertitle a:hover { color: var(--accent-orange); }
.authors { color: var(--text-secondary); font-size: 15.5px; line-height: 1.55; }
.author-self { position: relative; z-index: 0; display: inline-block; padding: 0 1px; font-weight: 600; color: var(--text-primary); isolation: isolate; }
.author-self::before { position: absolute; top: 50%; right: -2px; left: -2px; z-index: -1; height: .9em; background: linear-gradient(90deg, #ffe95e12, #ffe95e60 12%, #fff17661 80%, #ffe95e12); clip-path: polygon(0 22%, 9% 10%, 36% 17%, 68% 5%, 100% 18%, 99% 84%, 82% 94%, 51% 88%, 21% 100%, 1% 84%); content: ""; transform: translateY(-50%) rotate(-.7deg) skewX(-2deg); }
.venue-full { color: var(--text-primary); font-size: 15px; font-style: italic; margin-top: 6px; line-height: 1.55; }
.paper-description { margin-top: 10px; color: var(--text-secondary); font-size: 16px; line-height: 1.6; }
.paper-links-group { display: flex; align-items: center; flex-wrap: wrap; gap: 10px 20px; margin-top: 14px; }
.link-with-icon { display: inline-flex; align-items: center; gap: 7px; font-size: 15.5px; font-weight: 500; }
.link-with-icon img, .link-with-icon svg { width: 20px; height: 20px; flex-shrink: 0; object-fit: contain; }

/* Education and dated experience */
.institution-row { display: grid; grid-template-columns: 108px minmax(0, 1fr) auto; gap: 24px; align-items: center; padding: 15px 0; }
.institution-logo { display: flex; align-items: center; justify-content: center; width: 108px; min-height: 65px; }
.institution-logo img { object-fit: contain; }
.institution-copy h3 { font-size: 18px; line-height: 1.45; font-weight: 600; margin: 0 0 4px; }
.institution-copy h3 a { color: var(--text-primary); }
.institution-copy h3 a:hover { color: var(--link-color); }
.institution-copy p { color: var(--text-secondary); font-size: 16px; line-height: 1.55; }
.institution-date { text-align: right; color: var(--text-secondary); font-size: 15px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.institution-date span { display: block; color: var(--text-tertiary); font-size: 14px; }
.education-row { padding: 0; }
.experience-list .institution-row:first-child { padding-top: 0; }
.experience-list .institution-row:last-child { padding-bottom: 0; }

.awards-list { list-style: none; padding: 0; margin: 0; }
.awards-list li { display: grid; grid-template-columns: 86px minmax(0, 1fr); gap: 12px; padding: 3px 0; font-size: 17px; line-height: 1.45; letter-spacing: 0; }
.award-year { font-size: 16px; color: var(--text-secondary); font-variant-numeric: tabular-nums; }
.site-footer { display: flex; justify-content: flex-end; align-items: center; padding: 34px 0; }
.back-top { color: var(--text-secondary); font-size: 21px; }

/* Native figure preview. */
.figure-dialog { width: min(1120px, calc(100% - 36px)); max-height: calc(100dvh - 50px); padding: 44px 24px 20px; border: 1px solid #dbe3ef; border-radius: 6px; color: var(--text-primary); background: white; }
.figure-dialog::backdrop { background: #14283c99; }
.figure-dialog img { max-height: calc(100dvh - 180px); width: 100%; object-fit: contain; }
.figure-dialog figcaption { text-align: center; font-size: 15px; color: var(--text-secondary); margin-top: 18px; }
.dialog-close { position: absolute; top: 5px; right: 12px; width: 38px; height: 38px; border: 0; background: none; color: var(--text-secondary); font-size: 29px; cursor: pointer; }
body:has(.figure-dialog[open]) { overflow: hidden; }

@media (max-width: 1170px) {
  .page-shell { width: min(940px, calc(100% - 64px)); }
  .section-nav { position: sticky; top: 0; left: auto; width: 100%; transform: none; background: #fffffff5; border-bottom: 1px solid var(--line); }
  .section-nav__inner { display: flex; align-items: center; gap: 15px; max-width: 1004px; margin: 0 auto; padding: 0 28px; }
  .section-nav__label { margin: 0; flex-shrink: 0; font-size: 17px; }
  .section-nav__track { flex: 1; min-width: 0; overflow-x: auto; scrollbar-width: none; }
  .section-nav__track::-webkit-scrollbar { display: none; }
  .section-nav__track::before { display: none; }
  .section-nav__list { display: flex; width: max-content; }
  .section-nav__link { padding: 17px 11px; white-space: nowrap; font-size: 15px; }
  .section-nav__link:hover, .section-nav__link.is-active { transform: none; }
  .section-nav__indicator { top: auto; bottom: 0; height: 2px; width: var(--indicator-width); transform: translateX(var(--indicator-x)); transition: width .2s ease, transform .3s ease; }
  .page-section { scroll-margin-top: 85px; }
  .profile { margin-top: 40px; }
  .paper-row { margin-right: 0; margin-left: 0; }
}

@media (max-width: 850px) {
  .profile { grid-template-columns: minmax(0, 1fr) 210px; gap: 26px; }
  .avatar { border-radius: 38px; }
  .name { font-size: 38px; gap: 9px; }
  .paper-row { grid-template-columns: 190px minmax(0, 1fr); gap: 22px; padding: 21px 15px; }
  .institution-row { grid-template-columns: 88px minmax(0, 1fr); gap: 5px 20px; }
  .institution-logo { width: 88px; grid-row: span 2; }
  .institution-date { grid-column: 2; text-align: left; }
  .institution-date span { display: inline; margin-left: 8px; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .page-shell { width: calc(100% - 36px); }
  .section-nav__inner { padding: 0 18px; gap: 12px; }
  .section-nav__link { padding: 15px 10px; font-size: 14px; }
  .profile { display: flex; flex-direction: column; align-items: stretch; gap: 0; margin-top: 26px; }
  .profile-portrait { order: -1; align-self: center; width: 210px; margin: 0 0 26px; }
  .name { justify-content: center; gap: 10px; font-size: 36px; margin-bottom: 19px; }
  .profile-links { gap: 13px 20px; }
  .profile-link { font-size: 15px; }
  .page-section { margin-top: 38px; }
  .profile { margin-top: 26px; }
  .section-title { font-size: 28px; }
  .section-heading { margin-bottom: 17px; }
  .news-list li { grid-template-columns: 74px minmax(0, 1fr); gap: 10px; font-size: 15.5px; }
  .news-list time { font-size: 14.5px; }
  .research-heading { gap: 8px 20px; margin-bottom: 10px; }
  .research-toggle { font-size: 15px; }
  .paper-meta-note { font-size: 13.5px; }
  .paper-row { grid-template-columns: 1fr; gap: 18px; padding: 20px 15px; margin-top: 15px; }
  .paper-figure img { max-height: 215px; }
  .papertitle { font-size: 18px; line-height: 1.5; }
  .authors { font-size: 15.5px; }
  .venue-full { font-size: 15px; }
  .paper-description { font-size: 16px; }
  .paper-links-group { gap: 12px 19px; }
  .link-with-icon { font-size: 15px; }
  .institution-row { grid-template-columns: 66px minmax(0, 1fr); gap: 5px 15px; padding: 14px 0; }
  .institution-logo { width: 66px; min-height: 48px; }
  .institution-logo img { max-width: 62px; max-height: 56px; }
  .institution-logo--wide img { max-width: 66px; }
  .institution-copy h3 { font-size: 17px; }
  .institution-copy p { font-size: 15.5px; }
  .institution-date { font-size: 15px; white-space: normal; }
  .awards-list li { font-size: 17px; grid-template-columns: 75px minmax(0, 1fr); gap: 9px; padding: 3px 0; }
  .award-year { font-size: 15.5px; }
  .site-footer { font-size: 12px; padding: 28px 0; }
  .figure-dialog { padding: 46px 12px 18px; }
}

@media (max-width: 360px) {
  .name { font-size: 31px; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

@media print {
  .section-nav, .skip-link, .back-top, .figure-dialog, .research-toggle { display: none !important; }
  .page-shell { width: 100%; }
  .profile { margin-top: 0; }
  .page-section { margin-top: 24px; }
  .paper-row { break-inside: avoid; margin-left: 0; margin-right: 0; }
}

/* Haidong Huang: content adaptations within the supplied template's design. */
.profile-section { margin-top: 66px; }
.profile-section .profile { margin-top: 0; grid-template-columns: minmax(0, 1fr) 220px; gap: 38px; align-items: start; }
.profile-copy, .paper-content, .institution-copy { min-width: 0; }
.profile .name { font-size: clamp(34px, 3.2vw, 44px); margin-bottom: 6px; }
.profile-tagline { color: #8a919b; font-size: 18px; margin-bottom: 24px; letter-spacing: .025em; }
.profile-portrait { padding-top: 8px; }
.profile-continuation { margin-top: 12px; }
.profile-intro a, .research-interests a, .news-list a, .institution-copy p a, .services-list a { color: #527f9f; }
.profile-intro a:hover, .news-list a:hover, .institution-copy p a:hover, .services-list a:hover { color: var(--accent-orange); }
.research-interests { margin-top: 30px; padding-top: 24px; border-top: 1px solid var(--line); }
.profile-subheading { font-family: var(--font-heading); font-size: 24px; font-weight: 400; margin: 0 0 12px; }
.research-interests p { font-size: 16.5px; line-height: 1.75; color: var(--text-secondary); }
.research-interests strong { color: var(--text-primary); }
.beyond-layout p { font-size: 16.5px; line-height: 1.7; }
.beyond-layout p + p { margin-top: 16px; }
.beyond-layout a { color: #527f9f; }
.beyond-layout a:hover { color: var(--accent-orange); }
.personal-quote { margin: 30px 0 0; padding: 12px 0 12px 20px; border-left: 2px solid #dbe8f6; }
.personal-quote p { font-family: var(--font-heading); font-size: 19px; line-height: 1.6; color: var(--text-secondary); font-style: italic; }
.personal-quote cite { display: block; margin-top: 10px; font-size: 14px; font-style: normal; color: var(--text-tertiary); }
.research-heading .section-title { font-size: 29px; }
.paper-row { scroll-margin-top: 38px; border-radius: 6px; }
.paper-description { line-height: 1.65; }
.profile-monogram { display: inline-flex; width: 22px; height: 22px; flex: 0 0 22px; align-items: center; justify-content: center; border-radius: 4px; color: white; font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; line-height: 1; }
.linkedin-icon { background: #0a66c2; }
.zhihu-icon { background: #1772f6; font-family: "Microsoft YaHei", sans-serif; font-size: 16px; }
.news-emoji { white-space: nowrap; font-size: 1em; margin-right: 3px; }
.paper-meta-note { display: flex; flex-wrap: wrap; gap: 4px 18px; }
.paper-role { color: #877046; font-size: 14px; white-space: nowrap; font-weight: 500; }
.paper-badge { display: inline-block; margin-left: 4px; padding: 1px 7px; border-radius: 4px; color: #33705d; background: #e7f2ea; font-size: 12px; font-weight: 500; font-style: normal; white-space: nowrap; }
.paper-note { font-size: 14px; color: var(--text-tertiary); margin-top: 5px; }
.paper-highlight { margin-top: 10px; padding: 7px 11px; border-left: 2px solid #81ac9b; background: #eaf4ef; color: #366b58; font-size: 14px; line-height: 1.55; border-radius: 0 4px 4px 0; }
.publication-directory { margin-top: 16px; font-size: 15px; }
.institution-row { grid-template-columns: 160px minmax(0, 1fr); gap: 28px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.institution-row:last-child { border-bottom: 0; }
.institution-logo { width: 160px; min-height: 80px; grid-row: auto; }
.institution-logo img { width: 100%; height: auto; max-height: 100px; object-fit: contain; }
.institution-copy p + p { margin-top: 3px; }
.institution-copy .institution-detail { font-size: 15px; }
.institution-copy .institution-date { text-align: left; white-space: normal; font-size: 14px; font-style: italic; color: var(--text-tertiary); margin-top: 7px; }
.services-list { list-style: none; padding: 0; margin: 0; }
.services-list li { display: grid; grid-template-columns: 86px minmax(0, 1fr); gap: 12px; margin-top: 14px; font-size: 16px; }
.service-role { color: var(--text-tertiary); font-size: 15px; }
.service-edition { display: block; font-size: 14px; color: var(--text-tertiary); }
.site-footer { justify-content: space-between; gap: 16px; margin-top: 32px; border-top: 1px solid var(--line); font-size: 12px; color: var(--text-tertiary); }
.site-footer p a { color: inherit; }
.publications-intro { margin-top: 66px; font-size: 15px; }
.publications-intro p { margin-top: 18px; font-family: var(--font-heading); font-size: 26px; color: var(--text-primary); }
@media (max-width: 1170px) {
  .profile-section, .publications-intro { margin-top: 38px; }
  .paper-row { scroll-margin-top: 85px; }
}
@media (max-width: 850px) {
  .profile-section .profile { grid-template-columns: minmax(0, 1fr) 180px; gap: 26px; }
  .profile .name { font-size: 35px; }
  .institution-row { grid-template-columns: 144px minmax(0, 1fr); gap: 22px; }
  .institution-logo { width: 144px; }
}
@media (max-width: 640px) {
  .profile-section { margin-top: 26px; }
  .profile-section .profile { gap: 0; align-items: stretch; }
  .profile .name { font-size: 34px; text-align: center; }
  .profile-tagline { text-align: center; font-size: 16px; margin-bottom: 24px; }
  .profile-portrait { width: 190px; padding-top: 0; margin-bottom: 22px; }
  .research-interests p { font-size: 16px; }
  .beyond-layout p { font-size: 16px; }
  .personal-quote { margin-top: 27px; padding-left: 15px; }
  .personal-quote p { font-size: 18px; }
  .research-heading .section-title { font-size: 27px; }
  .institution-row { grid-template-columns: 96px minmax(0, 1fr); gap: 18px; }
  .institution-logo { width: 96px; min-height: 64px; }
  .institution-logo img { max-width: 100%; max-height: 76px; }
  .institution-copy h3 { font-size: 16.5px; }
  .institution-copy p { font-size: 15px; }
  .institution-copy .institution-detail { font-size: 14px; }
  .services-list li { grid-template-columns: 70px minmax(0, 1fr); font-size: 15.5px; }
}
@media (max-width: 360px) {
  .profile .name { font-size: 31px; }
  .institution-row { grid-template-columns: 78px minmax(0, 1fr); gap: 14px; }
  .institution-logo { width: 78px; }
}
@media print {
  .paper-row[hidden] { display: grid !important; }
  .paper-figure img { max-height: 160px; }
}