/* A research journal: broad typography, open spreads, precise annotation. */
:root {
  color-scheme: light;
  --paper: #fafbf9;
  --ink: #171d22;
  --body: #293039;
  --muted: #505963;
  --line: #d8dfdb;
  --blue: #2855ac;
  --wash: #edf2f8;
  --serif: "Fraunces", "Noto Serif SC", Georgia, serif;
  --body-font: "Newsreader", "Noto Serif SC", Georgia, serif;
  --name-font: "Pacifico", "Fraunces", cursive;
  --marker: rgba(224, 161, 43, 0.26);
  --sans: "Archivo", "Noto Serif SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "Space Mono", "SFMono-Regular", monospace;
  --width: 960px;
  --gutter: clamp(22px, 5vw, 64px);
  --interaction-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --interaction-wash: #eef1ed;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 28px;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 420 1.08rem/1.72 var(--body-font);
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
}
::selection {
  background: #d9e4fd;
  color: #16316a;
}
a {
  color: inherit;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
  transition:
    color 180ms ease,
    text-decoration-color 180ms ease;
}
a:hover {
  color: var(--blue);
}
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 5px;
}
button {
  font: inherit;
}
img {
  max-width: 100%;
  display: block;
}
p,
h1,
h2,
h3,
ul,
ol,
figure {
  margin: 0;
}
ul,
ol {
  padding: 0;
  list-style: none;
}
sup {
  font-size: 0.7em;
  line-height: 0;
}
.skip-link {
  position: fixed;
  top: -80px;
  left: 20px;
  padding: 8px 18px;
  background: white;
  z-index: 100;
}
.skip-link:focus {
  top: 10px;
}
.nav,
main,
.footer {
  width: 100%;
  max-width: calc(var(--width) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 25px;
  height: 78px;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 17px;
  text-decoration: none;
}
.nav__mark {
  color: var(--blue);
  font: 500 34px/1 var(--serif);
  letter-spacing: -0.07em;
}
.nav__links {
  position: relative;
  display: flex;
  align-items: center;
  gap: 31px;
  font-size: 0.9375rem;
}
.nav__links a,
.nav__links button {
  text-decoration: none;
  padding-block: 6px;
  position: relative;
}
.nav__news {
  padding-inline: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  cursor: pointer;
}
.nav__links .nav__tennis {
  display: grid;
  place-items: center;
  flex: none;
  width: 28px;
  height: 36px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  touch-action: manipulation;
}
.nav__tennis img {
  width: 22px;
  height: 22px;
  translate: 0 -1px;
  pointer-events: none;
  transition: transform 220ms var(--interaction-ease);
}
.nav__tennis-hint {
  position: absolute;
  z-index: 40;
  top: calc(100% + 8px);
  right: 0;
  display: flex;
  align-items: center;
  gap: 7px;
  width: max-content;
  max-width: calc(100vw - 44px);
  padding: 4px 8px;
  color: var(--ink);
  font: 400 1.25rem/1.45 var(--name-font);
  text-shadow:
    0 1px 4px var(--paper),
    0 0 8px var(--paper);
  text-align: left;
  visibility: hidden;
  opacity: 0;
  transform: translateY(-3px) rotate(-3deg);
  pointer-events: none;
  transition:
    opacity 160ms ease,
    transform 180ms var(--interaction-ease),
    visibility 0s linear 160ms;
}
.nav__tennis-hint > span {
  font: 400 1.25rem/1 var(--sans);
  color: var(--ink);
}
.nav__tennis-hint::before {
  content: "";
  position: absolute;
  inset: -9px 0 auto;
  height: 9px;
}
.nav__tennis:focus-visible + .nav__tennis-hint:not(.is-dismissed) {
  visibility: visible;
  opacity: 1;
  transform: rotate(-3deg);
  pointer-events: auto;
  transition-delay: 0s;
}
.nav__tennis:focus-visible img {
  animation: serve-invitation 480ms var(--interaction-ease) 1;
}
@keyframes serve-invitation {
  0%,
  100% {
    transform: none;
  }
  45% {
    transform: translateY(-4px) rotate(-16deg);
  }
  75% {
    transform: translateY(0) rotate(3deg);
  }
}
@media (max-width: 360px) {
  .nav .nav__links {
    column-gap: 4px;
  }
}
@media (pointer: coarse) {
  .nav__links .nav__tennis {
    height: 44px;
  }
}
.nav__links :is(a, button):is(:hover, :focus-visible, .is-active, [aria-expanded="true"]) {
  color: var(--ink);
  opacity: 1;
}
.nav__links a::after,
.nav__links button::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 3px;
  width: 100%;
  height: 1px;
  background: #9ca7a0;
  opacity: 0;
}
.nav__links a.is-active::after,
.nav__links button[aria-expanded="true"]::after {
  opacity: 1;
}
.nav__links.has-indicator > :is(a, button)::after {
  display: none;
}
.nav__links.has-indicator::after {
  content: "";
  position: absolute;
  left: 0;
  top: var(--nav-indicator-y);
  width: var(--nav-indicator-width);
  height: 1px;
  border-radius: 1px;
  background: #9ca7a0;
  transform: translateX(var(--nav-indicator-x));
  pointer-events: none;
  transition:
    transform 260ms var(--interaction-ease),
    width 260ms var(--interaction-ease),
    top 220ms var(--interaction-ease);
}
.eyebrow {
  font: 400 0.875rem/1.7 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.065em;
  color: var(--muted);
}
.index {
  margin-right: 13px;
  color: var(--blue);
}
.contact {
  --contact-gap: 20px;
  display: flex;
  flex-direction: row;
  gap: var(--contact-gap);
  margin: 0;
  color: var(--ink);
  font-size: 0.875rem;
  line-height: 1.5;
  white-space: nowrap;
}
.contact li {
  position: relative;
}
.contact li + li::before {
  content: "";
  position: absolute;
  top: 50%;
  left: calc(var(--contact-gap) / -2);
  width: 1px;
  height: 0.8em;
  background: #55635b;
  transform: translate(-50%, -50%);
  pointer-events: none;
}
.contact a {
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
}
.intro {
  padding-block: 30px 30px;
}
.bio {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 195px;
  gap: 46px;
  align-items: center;
}
.bio__profile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.bio__heading {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin-bottom: 28px;
}
.bio__text h1 {
  font: 400 3.5rem/1.35 var(--name-font);
  letter-spacing: 0;
  margin: 0 0 0 -2px;
}
.bio__text > p {
  font-size: 1.08rem;
  line-height: 1.72;
  color: var(--body);
}
.bio__text > p + p {
  margin-top: 18px;
}
.bio__desktop-break {
  display: none;
}
@media (min-width: 761px) {
  .bio__desktop-break {
    display: inline;
  }
}
.bio__text > p a {
  color: var(--ink);
  text-decoration-color: #2f6fb5;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 2.5px;
  text-decoration-skip-ink: none;
  transition:
    color 0.2s var(--interaction-ease),
    text-decoration-color 0.2s var(--interaction-ease);
}
.bio__text > p a:hover {
  color: #2f6fb5;
  text-decoration-color: #2f6fb5;
  text-decoration-thickness: 2px;
}
.bio__chinese {
  font-family: "Noto Serif SC", serif;
  font-size: 0.95em;
}
.inline-logo {
  display: inline-block;
  height: 1.05em;
  width: auto;
  vertical-align: -0.16em;
  margin-right: 0.22em;
  border-radius: 2px;
}
.inline-logo--nlp {
  height: 1.35em;
  vertical-align: -0.32em;
}
.logo-word {
  white-space: nowrap;
}
.contact i {
  color: var(--blue);
  font-size: 0.95em;
}
.portrait {
  position: relative;
  display: block;
  width: 184px;
  height: 184px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  justify-self: center;
  perspective: 900px;
}
.portrait__flip {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  transition: transform 460ms cubic-bezier(0.45, 0, 0.2, 1);
}
.portrait.is-flipped .portrait__flip {
  transform: rotateY(180deg);
}
.portrait__face {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  overflow: hidden;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.portrait__face img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.portrait__face--front img {
  object-position: center;
}
.portrait__face--back {
  transform: rotateY(180deg);
}
.portrait__face--back img {
  object-position: 50% 58%;
  transform: scale(1.4);
  transform-origin: 63% 58%;
}
.portrait__preview {
  position: absolute;
  z-index: 2;
  right: 0;
  bottom: 0;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--paper);
  background: var(--paper);
  transition: transform 220ms var(--interaction-ease);
}
.portrait__preview img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.3s;
}
.portrait__preview-manga {
  opacity: 0;
}
.portrait__preview-photo {
  object-position: center 58%;
}
.portrait.is-flipped .portrait__preview-photo {
  opacity: 0;
}
.portrait.is-flipped .portrait__preview-manga {
  opacity: 1;
}
.portrait:focus-visible .portrait__preview {
  transform: translate(2px, 2px) scale(1.04);
}
.research-overview {
  padding-block: 24px 36px;
  border-top: 1px solid var(--line);
}
.interests {
  min-width: 0;
}
.interests h2,
.news-popover h2 {
  font: 500 1.75rem/1.2 var(--serif);
  letter-spacing: -0.035em;
  margin-bottom: 21px;
}
.news-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding-right: 10px;
  scrollbar-width: thin;
  scrollbar-gutter: stable;
  scrollbar-color: #a2adb4 transparent;
  overscroll-behavior-y: contain;
}
.news-scroll:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}
.news-scroll::-webkit-scrollbar {
  width: 7px;
}
.news-scroll::-webkit-scrollbar-track {
  background: transparent;
  border-radius: 6px;
}
.news-scroll::-webkit-scrollbar-thumb {
  background: #a2adb4;
  border: 2px solid var(--paper);
  border-radius: 6px;
}
.news-scroll::-webkit-scrollbar-thumb:hover {
  background: var(--muted);
}
.interests > p,
.interests__list {
  max-width: 900px;
  font-size: 1.08rem;
  line-height: 1.72;
  color: var(--body);
}
.interests strong {
  font-weight: 700;
  color: var(--ink);
}
.interests > p + p {
  margin-top: 12px;
}
.interests__list {
  list-style: none;
  padding-left: 0;
  margin-top: 18px;
  font-size: 1.05rem;
  line-height: 1.6;
}
.interests__list li {
  position: relative;
  padding-left: 1.25rem;
}
.interests__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink);
  box-shadow:
    0 0 0 2px var(--paper),
    0 0 0 3px var(--ink);
}
.interests__list li + li {
  margin-top: 1rem;
}
.interests__list > li > .focus-key {
  display: block;
  margin-bottom: 5px;
}
.interests__sublist {
  list-style: none;
  padding-left: 1.35rem;
  margin-top: 0.5rem;
  font-size: 1rem;
  line-height: 1.6;
}
.interests__sublist > li + li {
  margin-top: 0.45rem;
}
.interests__sublist > li::before {
  width: 6px;
  height: 6px;
  top: 0.62em;
  background: transparent;
  border: 1.5px solid var(--ink);
  box-shadow: none;
}
.interests__list em {
  font-style: normal;
  color: var(--ink);
}
.publications {
  padding-block: 39px 47px;
  border-top: 1px solid var(--line);
}
.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 25px;
  margin-bottom: 29px;
}
.section-heading h2 {
  font: 500 1.75rem/1.2 var(--serif);
  letter-spacing: -0.035em;
  margin-top: 11px;
}
.heading-period {
  color: var(--blue);
}
.section-note {
  font-size: 0.875rem;
  color: var(--muted);
  text-align: right;
  padding-bottom: 3px;
}
.featured-papers {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px 36px;
  padding-bottom: 37px;
}
.pub__thumb {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #f3f6f8;
}
.pub__thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
}
.pub--feature {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.pub--feature .pub__thumb {
  height: 242px;
  padding: 25px 30px;
  border: 1px solid var(--line);
}
.pub--feature .pub__meta {
  padding-top: 21px;
}
.pub__topline {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 5px 13px;
}
.pub__venue {
  font: 400 0.875rem/1.7 var(--mono);
  color: var(--muted);
}
.pub__venue--accent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 1.625rem;
  gap: 6px;
  padding: 2px 8px;
  border-radius: 3px;
  background: #eaf0fb;
  color: #224e9b;
  box-shadow: inset 0 0 0 1px #cbd8ee;
  font: 400 0.875rem/1.55 var(--sans);
  white-space: nowrap;
}
.pub__venue--accent strong {
  font-weight: 700;
}
.pub__venue--accent > span {
  color: #476185;
}
.pub__venue--spotlight {
  background: #fff3d8;
  color: #78521b;
  box-shadow: inset 0 0 0 1px #e8d3a6;
}
.pub__venue--spotlight > span {
  color: inherit;
}
.pub__venue--spotlight .pub__distinction {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-weight: 700;
}
.pub__distinction i {
  color: #a67725;
  font-size: 0.75em;
  line-height: 1;
}
.news .news__spotlight {
  color: #78521b;
}
.pub__topics {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  font-size: 0.875rem;
  color: var(--muted);
}
.pub__topics span + span::before {
  content: "/";
  margin-right: 6px;
  color: #9caaa4;
}
.feature-name {
  font: 500 2.125rem/1.15 var(--serif);
  letter-spacing: -0.035em;
  margin: 12px 0 11px;
}
.feature-name a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  text-decoration: none;
}
.feature-name span {
  font: 400 27px/1 var(--sans);
  color: var(--blue);
  transition: transform 0.2s;
}
.pub__title {
  font: 500 1.42rem/1.32 var(--serif);
  letter-spacing: -0.015em;
}
.pub__title a {
  text-decoration: none;
}
.pub__authors {
  font-size: 1.0625rem;
  line-height: 1.56;
  color: var(--body);
  margin-top: 12px;
}
.me {
  position: relative;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  white-space: nowrap;
  padding-bottom: 0.22em;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='12' viewBox='0 0 120 12'%3E%3Cpath d='M2,7 C22,3 42,9 62,6 C82,3 100,8 118,5' fill='none' stroke='%2316181c' stroke-width='3.4' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 100% 0.5em;
}
.pub__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 15px;
  margin-top: 13px;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font: 400 0.875rem/1.25rem var(--sans);
  color: var(--blue);
  white-space: nowrap;
}
.tag__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 1rem;
  width: 1rem;
  height: 1.25rem;
  font-size: 0.9375rem;
  line-height: 1;
  /* Align the visible mark with Archivo's letterforms, not the line-box centre. */
  transform: translateY(-0.09375rem);
}
.tag__icon i {
  display: block;
  font-size: inherit;
  line-height: 1;
}
.tag__icon--github,
.tag__icon--x {
  color: #181717;
}
.tag__icon--hf img {
  width: 1rem;
  height: 1rem;
  object-fit: contain;
}
.tag__text {
  display: block;
}
.pub__links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 15px;
  font-size: 0.9375rem;
}
.pub__links a {
  text-decoration: none;
  border-bottom: 1px solid #aab9b2;
}
.paper-index {
  counter-reset: paper 4;
  border-top: 1px solid var(--ink);
}
.paper-index .pub {
  counter-increment: paper;
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 145px;
  gap: 42px;
  padding: 26px 0 26px 57px;
  border-bottom: 1px solid var(--line);
}
.paper-index .pub::before {
  content: counter(paper, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 29px;
  font: 400 0.875rem/1.7 var(--mono);
  color: var(--muted);
}
.paper-index .pub__thumb {
  grid-column: 2;
  grid-row: 1;
  height: 107px;
  align-self: center;
  border: 1px solid #e1e6e2;
  padding: 9px;
}
.paper-index .pub__meta {
  grid-column: 1;
  grid-row: 1;
}
.paper-index .pub__topline {
  justify-content: flex-start;
  gap: 15px;
  margin-bottom: 8px;
}
.paper-index .pub__authors {
  margin-top: 8px;
}
.paper-index .pub__links {
  margin-top: 9px;
}
.pubs-all {
  display: flex;
  justify-content: flex-end;
  gap: 7px;
  padding-top: 21px;
  font-size: 0.9375rem;
  color: var(--muted);
}
.pubs-all a {
  color: var(--ink);
  text-decoration: none;
}
.pubs-all a > span {
  color: var(--blue);
}
.projects .section-heading h2 {
  font-size: 1.75rem;
}
.projects .section-heading {
  margin-bottom: 25px;
}
.news {
  --news-date-width: 70px;
  padding-left: 0;
}
.news li {
  position: relative;
  display: grid;
  grid-template-columns: var(--news-date-width) minmax(0, 1fr);
  gap: 16px;
  font-size: 1rem;
  line-height: 1.55;
  padding: 2px 0 22px;
  align-items: baseline;
}
.news li + li {
  border-top: 0;
}
.news li::after {
  content: "";
  position: absolute;
  left: calc(var(--news-date-width) / 2);
  top: calc(2px + 0.875rem * 1.75 + 5px);
  bottom: 3px;
  width: 1px;
  background: var(--line);
}
.news li:last-child::after {
  display: none;
}
.news time {
  font: 400 0.875rem/1.75 var(--sans);
  color: var(--muted);
  white-space: nowrap;
  text-align: center;
}
.news strong {
  font-weight: 700;
}
.news a {
  color: var(--blue);
}
.gh-star {
  display: none;
}
.gh-star.is-loaded {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  margin-left: 5px;
  font: 400 0.875rem/1 var(--mono);
  color: var(--muted);
  white-space: nowrap;
}
.gh-star svg {
  width: 10px;
  height: 10px;
  fill: currentColor;
}
.projects {
  padding-block: 34px 44px;
  border-top: 1px solid var(--ink);
}
.project-papers .pub {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}
.project-papers .pub__thumb {
  height: 170px;
  border: 1px solid var(--line);
  padding: 20px;
  margin-bottom: 0;
}
.project-papers .pub__topline {
  margin-bottom: 12px;
}
.project-papers .pub__title {
  font-size: 1.5rem;
}
.closing {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 45px;
  border-block: 1px solid var(--line);
  padding-block: 37px;
}
.closing__text > p {
  font: 500 1.75rem/1.2 var(--serif);
  margin: 0 0 12px;
}
.closing__text > a {
  font-size: 0.9375rem;
  text-decoration-color: #aab9b2;
}
.visitor-map__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.visitor-map__widget {
  position: relative;
  width: 230px;
  min-height: 140px;
  overflow: hidden;
  opacity: 0.7;
}
.visitor-map__widget > * {
  max-width: 100%;
}
.visitor-map__counter {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  color: var(--muted);
  text-decoration: none;
}
.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 25px;
  font-size: 0.875rem;
  color: var(--muted);
}
.footer a {
  text-decoration: none;
}
@media (max-width: 1000px) {
  .featured-papers {
    gap: 25px;
  }
  .pub--feature .pub__thumb {
    height: 220px;
    padding: 20px;
  }
  .news li {
    --news-date-width: 67px;
    gap: 13px;
  }
  .paper-index .pub {
    gap: 25px;
    padding-left: 40px;
    grid-template-columns: minmax(0, 1fr) 125px;
  }
}
@media (max-width: 760px) {
  .nav {
    height: 75px;
  }
  .nav__links {
    gap: 20px;
    font-size: 0.875rem;
  }
  .featured-papers {
    gap: 22px;
  }
  .pub--feature .pub__thumb {
    height: 178px;
    padding: 15px;
  }
  .pub--feature .pub__title {
    font-size: 22px;
  }
  .feature-name {
    font-size: 2.125rem;
  }
  .paper-index .pub {
    grid-template-columns: minmax(0, 1fr) 106px;
  }
  .paper-index .pub__thumb {
    height: 89px;
  }
  .projects {
    padding: 32px 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .project-papers .pub {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 25px;
  }
  .project-papers .pub__thumb {
    height: 190px;
    margin: 0;
  }
  .closing {
    gap: 25px;
  }
  .visitor-map__widget {
    width: 180px;
  }
}
@media (max-width: 540px) {
  .nav {
    height: 69px;
    gap: 17px;
  }
  .nav__links {
    gap: 3px 12px;
    font-size: 0.875rem;
    flex-wrap: wrap;
    justify-content: flex-end;
  }
  .nav__mark {
    font-size: 30px;
  }
  .eyebrow {
    font-size: 0.875rem;
    letter-spacing: 0.02em;
  }
  .contact {
    --contact-gap: 16px;
    font-size: 0.875rem;
  }
  .section-heading {
    gap: 15px;
    margin-bottom: 24px;
  }
  .section-heading h2 {
    font-size: 1.75rem;
  }
  .section-note {
    max-width: 104px;
    font-size: 0.875rem;
  }
  .featured-papers {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 31px;
  }
  .pub--feature .pub__thumb {
    height: 220px;
    padding: 22px;
  }
  .pub--feature .pub__title {
    font-size: 1.5rem;
  }
  .pub--feature .pub__meta {
    padding-top: 15px;
  }
  .feature-name {
    font-size: 2.125rem;
  }
  .paper-index .pub {
    display: block;
    padding: 24px 0 24px 32px;
  }
  .paper-index .pub::before {
    top: 26px;
  }
  .paper-index .pub__thumb {
    float: right;
    width: 96px;
    height: 73px;
    margin: 0 0 14px 14px;
  }
  .paper-index .pub__meta {
    display: contents;
  }
  .paper-index .pub__topline {
    display: block;
    min-height: 73px;
  }
  .paper-index .pub__topics {
    margin-top: 6px;
  }
  .paper-index .pub__title {
    clear: both;
    font-size: 24px;
  }
  .pubs-all {
    justify-content: flex-start;
  }
  .publications {
    padding-block: 31px;
  }
  .projects {
    padding-block: 31px;
  }
  .projects .section-heading h2 {
    font-size: 1.75rem;
  }
  .news li {
    --news-date-width: 67px;
    gap: 14px;
  }
  .project-papers .pub {
    display: block;
  }
  .project-papers .pub__thumb {
    height: 210px;
    margin-bottom: 21px;
  }
  .closing {
    align-items: flex-start;
    flex-direction: column;
    gap: 25px;
    padding-block: 27px;
  }
  .visitor-map {
    width: 100%;
  }
  .visitor-map__widget {
    width: 230px;
  }
}

@media (max-width: 1000px) {
  .bio {
    grid-template-columns: minmax(0, 1fr) 190px;
    gap: 48px;
  }
  .portrait {
    width: 180px;
    height: 180px;
  }
}
@media (max-width: 760px) {
  .intro {
    padding-block: 28px 20px;
  }
  .bio {
    grid-template-columns: minmax(0, 1fr) 150px;
    gap: 32px;
    align-items: start;
  }
  .bio__text h1 {
    font-size: 3.25rem;
  }
  .portrait {
    width: 148px;
    height: 148px;
  }
  .bio__profile {
    padding-top: 63px;
  }
  .portrait__preview {
    width: 44px;
    height: 44px;
  }
  .research-overview {
    padding-block: 24px 33px;
  }
}
@media (max-width: 540px) {
  .bio {
    grid-template-columns: minmax(0, 1fr) 130px;
    gap: 18px;
  }
  .bio__text {
    display: contents;
  }
  .bio__heading {
    display: contents;
  }
  .contact {
    grid-column: 1 / -1;
    grid-row: 2;
  }
  .bio__text > p {
    grid-column: 1 / -1;
  }
  .bio__text > p + p {
    margin-top: 0;
  }
  .bio__profile {
    grid-column: 2;
    grid-row: 1;
    padding-top: 0;
    gap: 12px;
  }
  .bio__text h1 {
    font-size: 2.5rem;
    grid-column: 1;
    grid-row: 1;
    align-self: center;
    min-width: 0;
    margin: 0;
  }
  .portrait {
    width: 98px;
    height: 98px;
  }
  .portrait__preview {
    width: 34px;
    height: 34px;
    border-width: 3px;
  }
  .interests h2 {
    font-size: 1.75rem;
  }
}

/* A freestanding racket with a small, unframed fan of one-click shots. */
.tennis-toy {
  --tennis-accent: #ad8130;
  position: fixed;
  left: 22px;
  bottom: max(26px, env(safe-area-inset-bottom));
  z-index: 30;
  width: 76px;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}
.tennis-serve {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  width: 100%;
  height: 62px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.tennis-racket {
  flex: none;
  width: 54px;
  height: 54px;
  object-fit: contain;
  transform: rotate(18deg);
  transform-origin: 12.5% 81.3%;
  pointer-events: none;
}
.tennis-mode {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 28px;
  padding: 3px 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: 400 0.75rem/1.4 var(--sans);
  cursor: pointer;
}
.tennis-label {
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 4px;
  transition: text-decoration-color 160ms ease;
}
.tennis-mode:hover .tennis-label,
.tennis-mode[aria-expanded="true"] .tennis-label {
  text-decoration-color: var(--tennis-accent);
}
.tennis-mode:hover,
.tennis-mode[aria-expanded="true"] {
  color: var(--tennis-accent);
}
.tennis-play-hint {
  position: absolute;
  left: calc(100% + 8px);
  top: 10px;
  display: flex;
  align-items: center;
  gap: 5px;
  width: max-content;
  max-width: calc(100vw - 140px);
  color: var(--ink);
  font: 400 1.25rem/1.45 var(--name-font);
  text-shadow:
    0 1px 4px var(--paper),
    0 0 8px var(--paper);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transform: translateX(4px);
  transition:
    opacity 220ms ease,
    transform 260ms var(--interaction-ease),
    visibility 0s linear 220ms;
}
.tennis-play-hint__arrow {
  flex: none;
  font: 400 1.25rem/1 var(--sans);
}
.tennis-play-hint__text {
  min-width: 0;
}
.tennis-toy.is-inviting:not(.is-selecting):not(.has-feedback) .tennis-play-hint {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition-delay: 0s;
}
.tennis-feedback {
  position: absolute;
  left: 9px;
  bottom: calc(100% + 8px);
  max-width: 170px;
  padding: 0;
  color: var(--tennis-accent);
  font: 500 0.875rem/1.4 var(--sans);
  text-shadow:
    0 1px 4px var(--paper),
    0 0 8px var(--paper);
  opacity: 0;
  transform: translateY(4px);
  pointer-events: none;
  transition:
    opacity 150ms,
    transform 200ms;
}
.tennis-toy.has-feedback .tennis-feedback {
  opacity: 1;
  transform: none;
}
.tennis-shots {
  position: fixed;
  inset: auto;
  display: none;
  max-width: calc(100vw - 24px);
  max-height: calc(100dvh - 24px);
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  overflow: visible;
  opacity: 0;
  transform: scale(0.96);
  transform-origin: var(--orbit-x) var(--orbit-y);
  pointer-events: none;
  transition:
    opacity 150ms ease,
    transform 180ms ease,
    display 180ms allow-discrete,
    overlay 180ms allow-discrete;
}
.tennis-shots:popover-open {
  display: block;
  opacity: 1;
  transform: scale(1);
}
.tennis-shots::before {
  content: "";
  position: absolute;
  inset: -32px;
  background: radial-gradient(
    circle at calc(var(--orbit-x) + 32px) calc(var(--orbit-y) + 32px),
    transparent calc(var(--orbit-radius) - 48px),
    var(--paper) calc(var(--orbit-radius) - 22px),
    var(--paper) calc(var(--orbit-radius) + 22px),
    transparent calc(var(--orbit-radius) + 48px)
  );
  pointer-events: none;
}
.tennis-shots__arc {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  fill: none;
  stroke: #d9e1e5;
  stroke-width: 1px;
  pointer-events: none;
}
@media (min-width: 1400px) {
  .tennis-shots::before {
    display: none;
  }
}
@starting-style {
  .tennis-shots:popover-open {
    opacity: 0;
    transform: scale(0.96);
  }
}
.tennis-shots button {
  position: absolute;
  z-index: 1;
  left: var(--shot-x);
  top: var(--shot-y);
  transform: translate(-50%, -50%);
  display: inline-block;
  width: auto;
  min-width: 44px;
  min-height: 44px;
  padding: 8px 10px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  font: 400 0.875rem/1.4 var(--sans);
  text-align: center;
  white-space: nowrap;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 5px;
  cursor: pointer;
  pointer-events: auto;
  transition:
    color 150ms,
    text-decoration-color 150ms;
}
.tennis-shots button:hover {
  color: var(--ink);
  text-decoration-color: var(--shot-accent, var(--blue));
}
.tennis-shots button[aria-pressed="true"] {
  color: var(--ink);
  text-decoration-color: var(--shot-accent, var(--blue));
  font-weight: 600;
}
.tennis-court {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 24;
  pointer-events: none;
}
.tennis-court[hidden] {
  display: none;
}
.tennis-status {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}
@media (max-width: 760px) {
  .tennis-toy {
    left: 14px;
    bottom: max(16px, env(safe-area-inset-bottom));
    width: 76px;
  }
  .tennis-serve {
    height: 58px;
  }
  .tennis-racket {
    width: 50px;
    height: 50px;
  }
  .tennis-mode {
    min-height: 44px;
  }
  .tennis-shots button {
    min-height: 44px;
  }
}

/* A small floating messenger opens the News card. */
.news-float {
  position: fixed;
  right: 28px;
  bottom: max(26px, env(safe-area-inset-bottom));
  z-index: 30;
  display: grid;
  place-items: start center;
  width: 76px;
  height: 88px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--blue);
  cursor: grab;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}
.news-float__toy {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  width: 66px;
  height: 68px;
  border: 1px solid #cdd8e3;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 5px 14px rgba(23, 29, 34, 0.07);
  animation: messenger-float 4.6s ease-in-out infinite;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}
.news-float__toy > i {
  font-size: 27px;
  transform: translate(var(--plane-x, 0px), var(--plane-y, 0px)) rotate(var(--plane-tilt, -8deg));
  transition: transform 180ms ease-out;
}
.news-float__label {
  color: var(--body);
  font: 500 0.75rem/1 var(--sans);
  letter-spacing: 0.035em;
}
.news-float::after {
  content: "";
  position: absolute;
  bottom: 3px;
  left: 21px;
  width: 34px;
  height: 5px;
  background: rgba(23, 29, 34, 0.13);
  border-radius: 50%;
  filter: blur(3px);
  animation: messenger-shadow 4.6s ease-in-out infinite;
  pointer-events: none;
}
.news-float:hover .news-float__toy,
.news-float[aria-expanded="true"] .news-float__toy {
  border-color: #8ea8d4;
  box-shadow: 0 8px 22px rgba(40, 85, 172, 0.13);
}
.news-float.is-dragging {
  cursor: grabbing;
}
.news-float.is-dragging .news-float__toy {
  animation-play-state: paused;
  border-color: var(--blue);
}
@keyframes messenger-float {
  0%,
  100% {
    transform: translateY(0) rotate(-5deg);
  }
  50% {
    transform: translateY(-7px) rotate(2deg);
  }
}
@keyframes messenger-shadow {
  0%,
  100% {
    transform: scaleX(1);
    opacity: 0.7;
  }
  50% {
    transform: scaleX(0.7);
    opacity: 0.35;
  }
}
.news-popover {
  position: fixed;
  inset: auto;
  left: var(--news-left, 24px);
  top: var(--news-top, 24px);
  width: min(430px, calc(100vw - 32px));
  height: min(560px, calc(100dvh - 128px));
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper);
  color: var(--ink);
  box-shadow:
    0 18px 60px rgba(23, 29, 34, 0.16),
    0 2px 8px rgba(23, 29, 34, 0.04);
  overflow: hidden;
  opacity: 0;
  transform: translateY(12px) scale(0.96);
  transform-origin: var(--news-origin, bottom right);
  transition:
    opacity 180ms ease,
    transform 260ms cubic-bezier(0.22, 1, 0.36, 1),
    display 260ms allow-discrete,
    overlay 260ms allow-discrete;
}
.news-popover:popover-open {
  opacity: 1;
  transform: translateY(0) scale(1);
}
@starting-style {
  .news-popover:popover-open {
    opacity: 0;
    transform: translateY(12px) scale(0.96);
  }
}
.news-popover::backdrop {
  background: transparent;
  pointer-events: none;
}
.news-popover__surface {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}
.news-popover__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: none;
  gap: 20px;
  padding: 19px 22px 16px;
  border-bottom: 1px solid var(--line);
}
.news-popover__header h2 {
  margin: 0;
}
.news-popover__close {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  font: 400 1.5rem/1 var(--sans);
  cursor: pointer;
  transition:
    color 0.2s,
    background 0.2s,
    translate 0.2s;
}
.news-popover .news-scroll {
  padding: 16px 20px 24px;
}
@media (max-width: 760px) {
  .news-float {
    right: 14px;
    bottom: max(16px, env(safe-area-inset-bottom));
  }
  .news-popover__header {
    padding: 14px 18px;
  }
  .news-popover .news-scroll {
    padding: 14px 16px 22px;
  }
  .news-popover__close {
    width: 44px;
    height: 44px;
  }
}

/* Type and annotations carried over from the original homepage. */
.nav__links,
.contact,
.section-note,
.pub__topics,
.pub__links,
.tag,
.pubs-all,
.closing__text > a,
.visitor-map__counter,
.footer {
  font-family: var(--sans);
}
.interests .focus-key,
.interests .ink-mark {
  font-family: var(--serif);
  font-size: 0.96em;
}
.interests .kw {
  font-weight: 700;
  color: var(--ink);
  background-image: linear-gradient(transparent 62%, color-mix(in srgb, var(--blue) 24%, transparent) 62%);
  padding: 0 0.05em;
  border-radius: 2px;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}
.interests .term {
  font-weight: inherit;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1.5px solid color-mix(in srgb, var(--blue) 32%, transparent);
}
.ink-mark {
  position: relative;
  isolation: isolate;
  white-space: nowrap;
  padding: 0 0.08em;
}
.ink-mark::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 0.04em;
  height: 0.5em;
  background: var(--marker);
  z-index: -1;
  border-radius: 2px;
  transform: skewX(-4deg);
  transform-origin: left;
  animation: marker-sweep 0.6s ease-out;
}
@keyframes marker-sweep {
  from {
    transform: skewX(-4deg) scaleX(0);
  }
  to {
    transform: skewX(-4deg) scaleX(1);
  }
}

/* Quiet hover feedback: small lifts and neutral shadows, without animated lines. */
.news a,
.pub__title a,
.contact a,
.pub__links a,
.pubs-all a,
.closing__text > a,
.footer a,
.feature-name a,
.nav__links a,
.nav__links button {
  transition:
    opacity 180ms ease,
    color 180ms ease,
    translate 240ms var(--interaction-ease),
    scale 240ms var(--interaction-ease);
}
.news a,
.contact a,
.pub__links a,
.pubs-all a,
.closing__text > a,
.footer a {
  transform-origin: center 60%;
}
.pub__links a,
.closing__text > a {
  display: inline-block;
}
a.pub__thumb {
  transition:
    border-color 180ms ease,
    box-shadow 260ms var(--interaction-ease),
    translate 260ms var(--interaction-ease);
}
.portrait {
  border-radius: 50%;
}
.news-float__toy {
  transition:
    border-color 180ms ease,
    box-shadow 240ms ease,
    scale 180ms var(--interaction-ease);
}
.tennis-serve {
  transition: opacity 180ms ease;
}
.tennis-racket {
  transition: filter 220ms ease;
}
.tennis-shots button {
  transition:
    color 150ms ease,
    text-decoration-color 150ms ease;
}

a.pub__thumb:focus-visible {
  border-color: #aab6ae;
  box-shadow: 0 5px 16px rgba(23, 29, 34, 0.09);
}
.news-popover__close:focus-visible {
  color: var(--ink);
  background: var(--interaction-wash);
}
.news-float:focus-visible .news-float__toy {
  border-color: #aab6ae;
  box-shadow: 0 5px 16px rgba(23, 29, 34, 0.12);
}
.tennis-mode:focus-visible .tennis-label {
  text-decoration-color: var(--tennis-accent);
}
.tennis-shots button:focus-visible {
  color: var(--ink);
  text-decoration-color: var(--shot-accent);
  text-decoration-thickness: 2px;
}

@media (hover: hover) and (pointer: fine) {
  .nav__tennis:hover + .nav__tennis-hint:not(.is-dismissed),
  .nav__tennis-hint:hover:not(.is-dismissed) {
    visibility: visible;
    opacity: 1;
    transform: rotate(-3deg);
    pointer-events: auto;
    transition-delay: 0s;
  }
  .nav__tennis:hover img {
    animation: serve-invitation 480ms var(--interaction-ease) 1;
  }
  .nav__tennis:active img {
    animation: none;
    transform: scale(0.92);
  }
  /* Inline text itself cannot transform; give short links a stable box before hover.
     Touch layouts keep their natural inline wrapping, and transforms never reflow text. */
  .news a {
    display: inline-block;
    max-width: 100%;
    vertical-align: baseline;
  }
  :is(.news, .pub__title, .contact, .pub__links, .pubs-all, .closing__text, .footer, .feature-name) a:hover {
    color: var(--ink);
    opacity: 0.76;
  }
  :is(.contact, .pub__links, .pubs-all, .closing__text, .footer, .feature-name) a:hover {
    translate: 0 -2px;
  }
  :is(.news, .contact, .pub__links, .pubs-all, .closing__text, .footer) a:hover {
    scale: 1.01;
    opacity: 1;
  }
  .news a:hover {
    translate: 0 -1px;
  }
  a.pub__thumb:hover {
    translate: 0 -3px;
    border-color: #b6c0ba;
    box-shadow: 0 7px 20px rgba(23, 29, 34, 0.1);
  }
  .portrait:hover .portrait__preview {
    transform: translate(2px, 2px) scale(1.04);
  }
  .news-float:hover .news-float__toy,
  .news-float:hover::after {
    animation-play-state: paused;
  }
  .news-float:hover .news-float__toy {
    border-color: #b6c0ba;
    box-shadow: 0 7px 20px rgba(23, 29, 34, 0.1);
  }
  .news-popover__close:hover {
    color: var(--ink);
    background: var(--interaction-wash);
    translate: 0 -1px;
  }
  .tennis-serve:hover .tennis-racket {
    filter: drop-shadow(0 2px 3px rgba(23, 29, 34, 0.18));
  }
  .tennis-shots button:hover {
    text-decoration-thickness: 2px;
  }
  :is(.news, .nav__links, .contact, .pub__links, .pubs-all, .closing__text, .footer, .feature-name) :is(a, button):active,
  a.pub__thumb:active,
  .portrait:active {
    translate: 0 0;
    scale: 1;
  }
  .news-float:active:not(.is-dragging) .news-float__toy {
    scale: 0.97;
  }
  .tennis-serve:active {
    opacity: 0.75;
  }
}

/* One entrance per page load; backwards fill leaves no transformed layer at rest. */
@keyframes page-enter-rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes page-enter-portrait {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.94);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes page-enter-name {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@media (prefers-reduced-motion: no-preference) {
  .bio__text h1 {
    animation: page-enter-name 950ms 150ms var(--interaction-ease) backwards;
  }
  .bio__profile {
    animation: page-enter-portrait 1050ms 100ms var(--interaction-ease) backwards;
  }
  .bio__heading .contact {
    animation: page-enter-rise 850ms 250ms var(--interaction-ease) backwards;
  }
  .bio__text > p {
    animation: page-enter-rise 850ms 400ms var(--interaction-ease) backwards;
  }
  .bio__text > p + p {
    animation-delay: 500ms;
  }
  .interests > h2 {
    animation: page-enter-rise 850ms 550ms var(--interaction-ease) backwards;
  }
  .interests > p {
    animation: page-enter-rise 850ms 600ms var(--interaction-ease) backwards;
  }
  .interests > p + p {
    animation-delay: 650ms;
  }
  .interests__list {
    animation: page-enter-rise 850ms 700ms var(--interaction-ease) backwards;
  }
  .publications > .section-heading {
    animation: page-enter-rise 850ms 850ms var(--interaction-ease) backwards;
  }
  .featured-papers {
    animation: page-enter-rise 850ms 1000ms var(--interaction-ease) backwards;
  }
}

@media (prefers-reduced-motion: reduce) {
  .portrait__preview {
    transform: none !important;
  }
  .nav__tennis img {
    transform: none !important;
  }
  .nav__links :is(a, button),
  :is(.news, .contact, .pub__links, .pubs-all, .closing__text, .footer, .feature-name) a,
  a.pub__thumb,
  .portrait,
  .news-popover__close {
    translate: none !important;
    scale: none !important;
  }
  .news-float__toy {
    scale: none !important;
  }
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}