/* Layout follows the original repository at d9c2ec0. */
:root { --site-font: "Microsoft YaHei", "微软雅黑", "Microsoft YaHei UI", sans-serif; --site-width: 1240px; --header-height: 58px; --site-blue: #103E6C; }
* { box-sizing: border-box; font-family: var(--site-font); }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 25px); }
body { background: #fff; padding: 0; margin: 0; font: 17px/1.72 var(--site-font); color: #3a3a3a; font-weight: 400; }
[hidden] { display: none !important; }
h1, h2, h3, h4 { color: var(--site-blue); font-weight: 600; }
h1 { margin: 0 0 20px; font-size: 1.55rem; line-height: 1.2; letter-spacing: -.01em; }
h2 { margin: 52px 0 14px; padding-bottom: 9px; border-bottom: 1.5px solid rgba(19,41,75,.15); font-size: 1.5rem; line-height: 1.2; letter-spacing: .005em; }
h3 { margin: 26px 0 12px; font-size: 1.17em; line-height: 1.4; }
h4 { margin: 20px 0 10px; font-size: 1em; }
p, ul, ol { margin: 0 0 20px; }
p { line-height: 1.78; }
ul, ol { padding-left: 24px; }
li { margin-bottom: 7px; line-height: 1.62; }
strong { color: #1a1a1a; font-weight: 600; }
a { color: #0055a5; text-decoration: none; transition: color .15s ease; text-underline-offset: 3px; }
a:hover { color: #13294B; text-decoration: underline; }
.inline-text-link, .inline-text-link:hover { color: #0055a5; text-decoration: none; }
button, input, select { font: inherit; }
button { cursor: pointer; }
img { max-width: 100%; }
small { font-size: 13px; }
:focus-visible { outline: 2px solid #0055a5; outline-offset: 4px; }
main:focus { outline: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: -60px; left: 15px; background: #fff; padding: 5px 12px; z-index: 100; }
.skip-link:focus { top: 6px; }
.site-header { background: var(--site-blue); position: fixed; top: 0; left: 0; z-index: 20; width: 100%; box-shadow: 0 2px 16px rgba(0,0,0,.14); }
.nav-inner { width: min(var(--site-width), calc(100% - 48px)); min-height: var(--header-height); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.wordmark { color: #fff; font: 500 17px/1.72 var(--site-font); text-align: center; width: 242px; height: var(--header-height); flex-shrink: 0; padding: 4px 0; display: flex; align-items: center; justify-content: center; }
.university-logo { display: block; height: 42px; width: auto; object-fit: contain; }
.wordmark:hover { color: #fff; text-decoration: none; }
.main-navigation { display: flex; align-items: stretch; }
.main-navigation a { color: #f2f2f2; margin: 6px 2px; padding: 5px 10px; border-radius: 4px; font: 600 16px/1.72 var(--site-font); letter-spacing: .03em; white-space: nowrap; transition: color .15s ease, background-color .15s ease; }
.main-navigation a:hover { color: #fff; background: rgba(255,255,255,.09); text-decoration: none; }
.main-navigation a[aria-current="page"] { color: #fff; background: rgba(255,255,255,.18); font-weight: 600; text-decoration: none; }
.main-navigation a:focus-visible { outline: 2px solid #fff; outline-offset: 1px; }
.menu-toggle { display: none; }
.site-shell { width: min(var(--site-width), calc(100% - 48px)); margin: 0 auto; display: grid; grid-template-columns: 242px minmax(0, 1fr); gap: 56px; align-items: start; min-height: calc(100vh - 100px); }
.profile { position: sticky; top: 0; text-align: center; padding-top: calc(var(--header-height) + 38px); }
.portrait-link { display: inline-block; width: 116px; height: 116px; margin: 0 0 13px; border-radius: 100%; }
.portrait { display: block; width: 116px; height: 116px; border-radius: 100%; padding: 5px; border: 2px solid #d0d0d0; box-shadow: 0 6px 24px rgba(19,41,75,.18); object-fit: cover; object-position: center 14%; background: #fff; }
.profile-name { color: var(--site-blue); font-size: 1.55rem; font-weight: 600; margin: 0 0 7px; line-height: 1.2; letter-spacing: -.01em; }
.profile-name span { font: inherit; }
.profile-position { margin: 10px 0 4px; font-size: 1.1rem; color: #555; line-height: 1.55; }
.profile-affiliation { color: #5a5a5a; margin: 0 0 6px; line-height: 1.6; }
.profile-member { font-size: 15px; color: #666; margin: 4px 0 7px; }
.email-link { font-family: var(--site-font); font-size: 13px; color: #666; }
.profile-links { display: flex; flex-wrap: wrap; justify-content: center; column-gap: 13px; row-gap: 3px; margin: 25px auto 0; max-width: 225px; }
.profile-links a { font-size: 15px; line-height: 1.6; }
.main-content { min-width: 0; padding: calc(var(--header-height) + 40px) 0 56px; }
.main-content > h1:first-child { margin-bottom: 22px; }
.research-list li, .record-list li { margin-bottom: 12px; }
.research-directions { margin: 0; }
.research-direction + .research-direction { margin-top: 38px; }
.research-direction h2 { margin-top: 0; }
.research-points { margin: 0; }
.research-points li:last-child { margin-bottom: 0; }
.page-publications #papers-title,
.page-projects #lead-projects-title,
.page-teaching #join-heading,
.page-services #honors-title { margin-top: 0; }
.recent-papers li { margin-bottom: 18px; }
.contact-list { list-style: none; padding: 0; }
.paper-list { padding-left: 25px; }
.paper-entry { padding-left: 2px; margin-bottom: 22px; line-height: 1.62; overflow-wrap: anywhere; scroll-margin-top: calc(var(--header-height) + 25px); }
.paper-entry p { margin: 0 0 5px; line-height: 1.62; }
.paper-entry:target { background: #fff9ec; }
.paper-entry small, .paper-entry .paper-links { font-size: 14px; }
.paper-entry strong { font-weight: 600; }
.record-list li > p { margin: 0 0 6px; }
.record-list .project-meta { color: #666; font-size: 15px; }
.section-links, .page-links { margin-bottom: 24px; }
.section-links a, .page-links a { margin-right: 18px; white-space: nowrap; }
.back-to-top { display: block; position: fixed; right: 22px; bottom: 22px; border: 1px solid #ccc; background: #fff; color: #333; font-size: 15px; text-align: center; line-height: 30px; width: 100px; height: 32px; opacity: 0; pointer-events: none; }
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.not-found { padding-top: 10px; }
.not-found h1 { font-size: 1.55rem; }
.not-found .button { display: inline; color: #0055a5; }
@media (max-width: 960px) {
  :root { --header-height: 56px; }
  .nav-inner { width: 100%; flex-wrap: wrap; padding: 0 20px; }
  html:not(.js) .site-header { position: static; }
  html:not(.js) .profile { padding-top: 30px; }
  .wordmark { width: auto; font-size: 17px; text-align: left; padding: 4px 0; }
  .menu-toggle { display: none; width: 40px; height: 40px; background: transparent; border: 0; padding: 9px; margin-left: auto; align-items: center; justify-content: center; flex-direction: column; gap: 5px; }
  .js .menu-toggle { display: flex; }
  .menu-toggle span { width: 18px; height: 1px; background: #fff; display: block; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .main-navigation { width: 100%; flex-direction: column; align-items: stretch; padding: 0 0 10px; }
  .js .main-navigation { display: none; }
  .js .main-navigation.open { display: flex; }
  .main-navigation a { font-size: 16px; text-align: center; margin: 2px 0; padding: 8px 16px; }
  .site-shell { display: block; width: auto; margin: 0; min-height: calc(100vh - 100px); }
  .profile { position: static; padding: calc(var(--header-height) + 30px) 20px 29px; }
  .portrait-link, .portrait { width: 117px; height: 117px; }
  .profile-name { margin-top: 0; }
  .profile-links { max-width: 320px; column-gap: 18px; margin-top: 24px; }
  .main-content { border-top: 1px solid #e5e5e5; padding: 24px 20px 35px; }
  .back-to-top { right: 15px; bottom: 15px; }
}
@media (max-width: 600px) {
  .research-direction + .research-direction { margin-top: 30px; }
}
@media (max-width: 480px) {
  .portrait-link, .portrait { width: 95px; height: 95px; }
  .profile-links { max-width: 290px; }
  .profile-links a { font-size: 15px; }
  .main-navigation a { min-height: 42px; }
  .paper-list, .record-list, .research-list { padding-left: 21px; }
  .main-content { overflow-wrap: break-word; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; } }
@media print {
  .site-header, .back-to-top, .skip-link { display: none !important; }
  body { padding: .4in; font-size: 12pt; }
  .site-shell { width: auto; display: block; min-height: 0; }
  .profile { position: static; padding-top: 0; margin-bottom: 25px; }
  .main-content { width: auto; padding: 0; }
  .paper-entry, .record-list li { break-inside: avoid; }
}