:root {
  --bg: #f7f7f4;
  --surface: #fbfbf8;
  --text: #111111;
  --muted: #555555;
  --line: #c9c9c3;
  --line-strong: #9f9f98;
  --wash: #eeeeea;
  --inverse: #111111;
  --inverse-text: #ffffff;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "Inter", Arial, sans-serif;
  --shell: min(1140px, calc(100vw - 72px));
}

[data-theme="dark"] {
  --bg: #111111;
  --surface: #151515;
  --text: #f3f0e8;
  --muted: #beb9ad;
  --line: #37342f;
  --line-strong: #686258;
  --wash: #1a1a18;
  --inverse: #f3f0e8;
  --inverse-text: #111111;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  color: var(--text);
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--wash) 30%, transparent) 1px, transparent 1px) 0 0 / 84px 84px,
    var(--bg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.shell {
  width: var(--shell);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: 76px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 28px;
  border-bottom: 1px solid var(--line-strong);
}

.brand {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 38px;
  font-size: 15px;
  font-weight: 500;
}

.nav-link {
  position: relative;
  padding: 26px 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 18px;
  height: 1px;
  background: var(--text);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.nav-link:hover::after,
.nav-link.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.theme-toggle {
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  color: var(--text);
  background: transparent;
  border: 0;
  cursor: pointer;
}

.icon {
  width: 20px;
  height: 20px;
  display: inline-block;
  flex: 0 0 auto;
  background: currentColor;
  mask-repeat: no-repeat;
  mask-position: center;
  mask-size: contain;
}

.icon-sun {
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M12 18a6 6 0 1 1 0-12 6 6 0 0 1 0 12Zm0-2a4 4 0 1 0 0-8 4 4 0 0 0 0 8Zm-1-16h2v4h-2V0Zm0 20h2v4h-2v-4ZM0 11h4v2H0v-2Zm20 0h4v2h-4v-2ZM3.51 2.1l2.83 2.83-1.41 1.41L2.1 3.51 3.51 2.1Zm16.97 16.97 1.42 1.42-1.42 1.41-2.83-2.83 1.42-1.42ZM20.49 2.1l1.41 1.41-2.83 2.83-1.42-1.41 2.84-2.83ZM6.34 19.07 3.51 21.9 2.1 20.49l2.83-2.84 1.41 1.42Z'/%3E%3C/svg%3E");
}

.icon-mail {
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M3 5h18v14H3V5Zm2 3.06V17h14V8.06l-7 4.67-7-4.67ZM6.8 7 12 10.47 17.2 7H6.8Z'/%3E%3C/svg%3E");
}

.icon-pin {
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M12 2a7 7 0 0 0-7 7c0 5.25 7 13 7 13s7-7.75 7-13a7 7 0 0 0-7-7Zm0 9.5A2.5 2.5 0 1 1 12 6a2.5 2.5 0 0 1 0 5.5Z'/%3E%3C/svg%3E");
}

.icon-scholar {
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M12 3 1 9l11 6 9-4.91V17h2V9L12 3Zm-7 10.2V17l7 4 7-4v-3.8L12 17l-7-3.8Z'/%3E%3C/svg%3E");
}

.icon-github {
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M12 2C6.48 2 2 6.58 2 12.26c0 4.52 2.87 8.35 6.84 9.71.5.1.68-.22.68-.48 0-.24-.01-.87-.01-1.7-2.78.62-3.37-1.37-3.37-1.37-.45-1.18-1.1-1.5-1.1-1.5-.9-.63.07-.62.07-.62 1 .07 1.53 1.05 1.53 1.05.89 1.55 2.34 1.1 2.91.84.09-.65.35-1.1.63-1.35-2.22-.26-4.56-1.14-4.56-5.07 0-1.12.39-2.03 1.03-2.75-.1-.26-.45-1.3.1-2.71 0 0 .84-.28 2.75 1.05A9.38 9.38 0 0 1 12 6.84c.85 0 1.71.12 2.51.35 1.91-1.33 2.75-1.05 2.75-1.05.55 1.41.2 2.45.1 2.71.64.72 1.03 1.63 1.03 2.75 0 3.94-2.34 4.8-4.57 5.06.36.32.68.94.68 1.9 0 1.37-.01 2.47-.01 2.81 0 .27.18.59.69.48A10.01 10.01 0 0 0 22 12.26C22 6.58 17.52 2 12 2Z'/%3E%3C/svg%3E");
}

.icon-orcid {
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M12 0a12 12 0 1 0 0 24 12 12 0 0 0 0-24ZM9.8 17.75H7.7V8.5h2.1v9.25ZM8.75 7.25a1.2 1.2 0 1 1 0-2.4 1.2 1.2 0 0 1 0 2.4Zm7.15 10.5h-3.05V8.5h3.05A4.1 4.1 0 0 1 20 12.6v1.05a4.1 4.1 0 0 1-4.1 4.1Zm1.98-5.15a2 2 0 0 0-1.98-2h-.95v5.05h.95a2 2 0 0 0 1.98-2V12.6Z'/%3E%3C/svg%3E");
}

.icon-doc {
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M6 2h8l5 5v15H6V2Zm7 1.8V8h4.2L13 3.8ZM8 20h9V10h-6V4H8v16Zm2-7h5v2h-5v-2Zm0 4h5v2h-5v-2Z'/%3E%3C/svg%3E");
}

.icon-external {
  width: 14px;
  height: 14px;
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M14 3h7v7h-2V6.41l-9.29 9.3-1.42-1.42 9.3-9.29H14V3ZM5 5h6v2H7v10h10v-4h2v6H5V5Z'/%3E%3C/svg%3E");
}

.icon-link {
  width: 15px;
  height: 15px;
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M10.6 13.4a1.5 1.5 0 0 1 0-2.12l3.54-3.54a3 3 0 1 1 4.24 4.24l-2.12 2.12 1.42 1.42 2.12-2.12a5 5 0 0 0-7.08-7.08L9.18 9.86a3.5 3.5 0 0 0 0 4.96l1.42-1.42Zm2.8-2.8a1.5 1.5 0 0 1 0 2.12l-3.54 3.54a3 3 0 1 1-4.24-4.24l2.12-2.12-1.42-1.42L4.2 10.6a5 5 0 0 0 7.08 7.08l3.54-3.54a3.5 3.5 0 0 0 0-4.96l-1.42 1.42Z'/%3E%3C/svg%3E");
}

.icon-cube {
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 64 64' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M32 3 7 17v30l25 14 25-14V17L32 3Zm0 5.8L49.6 18.7 32 28.5 14.4 18.7 32 8.8ZM12 23l17.5 9.8v20.6L12 43.6V23Zm40 20.6-17.5 9.8V32.8L52 23v20.6Z'/%3E%3C/svg%3E");
}

.icon-spark {
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 64 64' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M25 4h14v14H25V4ZM7 25h14v14H7V25Zm18 0h14v14H25V25Zm18 0h14v14H43V25ZM7 46h14v14H7V46Zm18 0h14v14H25V46Zm18 0h14v14H43V46ZM29 8v6h6V8h-6ZM11 29v6h6v-6h-6Zm18 0v6h6v-6h-6Zm18 0v6h6v-6h-6ZM11 50v6h6v-6h-6Zm18 0v6h6v-6h-6Zm18 0v6h6v-6h-6Z'/%3E%3C/svg%3E");
}

.icon-eye {
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 64 64' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M32 9 4 55h56L32 9Zm0 9.6L50.2 49H13.8L32 18.6Zm0 8.4 12 20H20l12-20Zm0 7.8L27.1 43h9.8L32 34.8Z'/%3E%3C/svg%3E");
}

.icon-globe {
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 64 64' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M14 8h36v30H14V8Zm4 4v22h28V12H18Zm5 5h18v4H23v-4Zm0 8h12v4H23v-4ZM8 43h48v13H8V43Zm4 4v5h40v-5H12Zm31 1h5v3h-5v-3Z'/%3E%3C/svg%3E");
}

.hero {
  min-height: 560px;
  display: grid;
  grid-template-columns: 0.82fr 1.08fr;
  gap: clamp(48px, 5vw, 76px);
  align-items: center;
  padding: 30px 0 34px;
  border-bottom: 1px solid var(--line-strong);
}

.hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(64px, 8vw, 104px);
  font-weight: 500;
  line-height: 0.95;
}

.hero-name-cn {
  display: inline-block;
  margin-left: 0.18em;
  color: color-mix(in srgb, var(--text) 34%, transparent);
  font-family: var(--serif);
  font-size: 0.24em;
  font-weight: 500;
  letter-spacing: 0.08em;
  vertical-align: 0.18em;
  white-space: nowrap;
}

.hero-kicker {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 17px;
  font-weight: 500;
}

.short-rule {
  width: 88px;
  height: 1px;
  margin: 28px 0 24px;
  background: var(--line-strong);
}

.affiliation {
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 410px;
  margin: 0 0 22px;
  font-weight: 700;
  line-height: 1.4;
}

.affiliation img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  filter: grayscale(1);
}

.hero-intro {
  max-width: 430px;
  margin: 0;
}

.scroll-cue {
  display: inline-block;
  margin-top: 48px;
  font-family: var(--serif);
  font-size: 38px;
  line-height: 1;
}

.hero-media {
  margin: 0;
  width: 100%;
  aspect-ratio: 1.45 / 1;
  align-self: center;
  position: relative;
  display: grid;
  place-items: center;
  overflow: visible;
  background: transparent;
}

.hero-media::before {
  content: "";
  position: absolute;
  inset: 11% 5% 7% 18%;
  background: var(--inverse);
  opacity: 0.92;
  transform: translate(18px, 18px);
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 7% 13% 13% 6%;
  border: 1px solid var(--line-strong);
  transform: translate(-10px, -10px);
}

.hero-media img {
  position: relative;
  z-index: 1;
  width: auto;
  max-width: 78%;
  height: 86%;
  max-height: 86%;
  object-fit: contain;
  object-position: center;
  box-shadow: 0 18px 36px rgba(17, 17, 17, 0.16);
}

.section-block {
  padding: 44px 0;
  border-bottom: 1px solid var(--line-strong);
}

.split-section {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  gap: 58px;
}

.split-section > aside {
  border-left: 1px solid var(--line);
  padding-left: 44px;
}

.section-title,
.panel-title {
  margin: 0 0 24px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-block p {
  max-width: 660px;
  margin: 0 0 18px;
}

.text-link {
  font-weight: 650;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.connect-panel {
  margin-top: 36px;
  padding: 4px 0 0;
  border: 0;
  background: transparent;
}

.panel-title {
  margin-bottom: 18px;
  font-size: 15px;
  letter-spacing: 0.2em;
}

.connect-body {
  display: grid;
  grid-template-columns: minmax(320px, 1.1fr) minmax(170px, 0.7fr);
  gap: 18px 40px;
  align-items: center;
}

.connect-line {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  min-width: 0;
}

.connect-line .icon,
.connect-actions .icon {
  width: 18px;
  height: 18px;
}

.connect-line strong {
  display: block;
  margin-bottom: 0;
  font-size: 13px;
}

.connect-line span:last-child {
  display: block;
  min-width: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.connect-email span:last-child {
  color: var(--text);
  font-size: 15px;
}

.connect-actions {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  padding-top: 2px;
}

.connect-actions a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 32px;
  padding: 0;
  border: 0;
  background: transparent;
  font-size: 14px;
  font-weight: 700;
  transition: color 160ms ease, transform 160ms ease;
}

.connect-actions a:hover {
  color: var(--muted);
  transform: translateY(-1px);
}

.section-link::after {
  content: "";
  display: block;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.section-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.interest-list {
  display: grid;
  gap: 30px;
  padding: 2px 0 0;
  margin: 40px 0 0;
  list-style: none;
}

.interest-list li {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 22px;
  align-items: start;
}

.interest-icon {
  width: 34px;
  height: 34px;
  color: var(--text);
  margin-top: 4px;
}

.interest-list h3 {
  margin: 0 0 3px;
  font-size: 15px;
  line-height: 1.3;
}

.interest-list p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 10px;
}

.section-link {
  font-size: 14px;
  white-space: nowrap;
  display: inline-grid;
  gap: 2px;
}

.news-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.news-list li {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 10px;
  padding: 12px 32px 12px 10px;
  border-bottom: 1px solid var(--line);
}

.news-list li:last-child {
  border-bottom: 0;
}

.news-list time {
  color: var(--muted);
  font-size: 14px;
  white-space: nowrap;
}

.news-list p {
  max-width: none;
  margin: 0;
  font-size: 15px;
}

.publications {
  border-bottom: 0;
}

.pub-legend {
  margin: -2px 0 12px;
  color: var(--muted);
  font-size: 13px;
}

.publication {
  display: grid;
  grid-template-columns: minmax(260px, 360px) 1fr;
  gap: 38px;
  align-items: start;
  padding: 22px 0 26px;
  border-bottom: 1px solid var(--line);
}

.publication:last-child {
  border-bottom: 0;
}

.pub-thumb {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 0;
  background: #ffffff;
}

.pub-thumb img {
  width: 100%;
  height: 100%;
  padding: 10px;
  object-fit: contain;
}

.pub-content h3 {
  max-width: 620px;
  margin: 2px 0 9px;
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.12;
}

.pub-content h3 a {
  display: inline;
  background-image: linear-gradient(currentColor, currentColor);
  background-position: 0 100%;
  background-repeat: no-repeat;
  background-size: 0 1px;
  transition: background-size 180ms ease;
}

.pub-content h3 a:hover {
  background-size: 100% 1px;
}

.authors {
  color: var(--muted);
  font-size: 14px;
}

.authors strong {
  color: var(--text);
}

.venue {
  display: inline-block;
  margin-top: 8px;
  padding: 2px 8px 3px;
  color: var(--inverse-text);
  background: var(--inverse);
  border-radius: 3px;
  font-size: 12px;
  font-weight: 700;
}

.pub-links {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 26px;
  font-size: 15px;
}

.pub-links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 36px;
  padding: 7px 10px;
  border: 0;
  transition: color 160ms ease, transform 160ms ease;
}

.pub-links a:hover {
  color: var(--muted);
  transform: translateY(-1px);
}

.arxiv-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 18px;
  min-width: 34px;
  padding: 0 4px;
  border: 1px solid currentColor;
  font-family: Georgia, serif;
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
}

.pub-links a + a::before {
  content: "";
  width: 1px;
  height: 20px;
  margin-right: 12px;
  background: var(--line-strong);
}

.visitors {
  padding-bottom: 30px;
}

.visitor-note {
  max-width: none;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.clustrmaps-panel {
  margin-top: 18px;
  display: grid;
  justify-items: center;
}

.clustrmaps-embed {
  width: min(440px, 100%);
  min-height: 360px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  place-items: center;
  text-align: center;
  overflow: visible;
  background:
    radial-gradient(circle at 50% 45%, color-mix(in srgb, var(--surface) 72%, transparent), transparent 58%),
    linear-gradient(90deg, color-mix(in srgb, var(--line) 18%, transparent) 1px, transparent 1px) 0 0 / 72px 72px,
    linear-gradient(color-mix(in srgb, var(--line) 16%, transparent) 1px, transparent 1px) 0 0 / 72px 72px;
}

.clustrmaps-embed p {
  max-width: 360px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.clustrmaps-embed script,
.clustrmaps-embed a,
.clustrmaps-embed img,
.clustrmaps-embed iframe,
.clustrmaps-embed canvas,
.clustrmaps-embed object,
.clustrmaps-embed embed {
  display: block;
  width: min(360px, 100%) !important;
  max-width: 100% !important;
  height: auto !important;
  max-height: 360px !important;
  margin: 0 auto !important;
}

.clustrmaps-embed > *:not(p):not(script) {
  transform: none;
}

.visitor-privacy {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.site-footer {
  padding: 26px 0 42px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  :root {
    --shell: min(100vw - 38px, 760px);
  }

  .header-inner {
    grid-template-columns: 1fr auto;
    min-height: auto;
    padding: 18px 0;
  }

  .main-nav {
    grid-column: 1 / -1;
    justify-content: space-between;
    gap: 14px;
    order: 3;
    width: 100%;
    overflow-x: auto;
  }

  .nav-link {
    padding: 4px 0 10px;
  }

  .nav-link::after {
    bottom: 4px;
  }

  .hero,
  .split-section,
  .publication {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 0;
    gap: 30px;
    padding-top: 42px;
  }

  .hero-media {
    order: -1;
    aspect-ratio: 1.35 / 1;
  }

  .hero-media img {
    max-width: 82%;
    height: 88%;
    max-height: 88%;
  }

  .split-section > aside {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding: 34px 0 0;
  }

  .connect-body {
    grid-template-columns: 1fr;
  }

  .publication {
    gap: 18px;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .brand {
    font-size: 17px;
  }

  .main-nav {
    font-size: 13px;
  }

  .hero h1 {
    font-size: 62px;
  }

  .hero-name-cn {
    display: block;
    margin: 0.24em 0 0;
    font-size: 0.34em;
    vertical-align: baseline;
  }

  .hero-media img {
    height: 88%;
    max-width: 88%;
    max-height: 88%;
  }

  .news-list li {
    grid-template-columns: 1fr;
  }

  .news-list li {
    gap: 2px;
    padding-right: 0;
  }

  .section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 0;
  }

  .pub-links {
    gap: 12px;
    flex-wrap: wrap;
  }

  .pub-links a + a::before {
    margin-right: 12px;
  }

  .clustrmaps-embed {
    width: min(340px, 100%);
    min-height: 300px;
  }
}