:root {
  --ink: #111319;
  --ink-soft: #4f5662;
  --paper: #ffffff;
  --paper-muted: #f7f8fa;
  --line: #dfe3e8;
  --line-dark: #303641;
  --blue: #286fbc;
  --blue-soft: #eaf3fb;
  --red: #df4d59;
  --red-soft: #fbecef;
  --dark: #0c111b;
  --shell: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

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

h1,
h2,
h3,
p,
dl,
dd,
figure {
  margin: 0;
}

h1,
h2,
h3 {
  line-height: 1.1;
  letter-spacing: 0;
}

.shell {
  width: min(calc(100% - 48px), var(--shell));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 68px;
  border-bottom: 1px solid rgba(223, 227, 232, 0.9);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 720;
}

.wordmark-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 5px;
  background: var(--ink);
  color: var(--paper);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 600;
}

.site-nav a,
.paper-links a,
.open-work-links a,
.contact-links a,
.site-footer a {
  transition: color 160ms ease;
}

.site-nav a:hover,
.paper-links a:hover,
.open-work-links a:hover,
.site-footer a:hover {
  color: var(--blue);
}

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background-color: var(--paper-muted);
}

.hero::before,
.hero::after {
  position: absolute;
  top: 0;
  width: 50%;
  height: 3px;
  content: "";
}

.hero::before {
  left: 0;
  background: var(--blue);
}

.hero::after {
  right: 0;
  background: var(--red);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(320px, 0.6fr);
  align-items: center;
  gap: 84px;
  min-height: 552px;
  padding: 50px 0;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow,
.section-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 750;
  line-height: 1.3;
  text-transform: uppercase;
}

.eyebrow-line {
  width: 34px;
  height: 2px;
}

.eyebrow-line.blue {
  background: var(--blue);
}

.hero h1 {
  margin-top: 20px;
  font-size: 68px;
  font-weight: 780;
}

.chinese-name {
  display: block;
  margin-top: 9px;
  color: var(--ink-soft);
  font-size: 20px;
  font-weight: 540;
}

.hero-lede {
  max-width: 690px;
  margin-top: 24px;
  color: #343a45;
  font-size: 20px;
  line-height: 1.55;
}

.research-index {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 28px;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 650;
}

.research-index span {
  display: inline-flex;
  align-items: center;
}

.research-index span:not(:last-child)::after {
  width: 4px;
  height: 4px;
  margin: 0 13px;
  border-radius: 50%;
  background: var(--red);
  content: "";
}

.hero-actions {
  display: flex;
  gap: 10px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 16px;
  border: 1px solid var(--ink);
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
  transition:
    background 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--ink);
  color: var(--paper);
}

.button-primary:hover {
  background: var(--blue);
}

.button-secondary {
  background: var(--paper);
}

.button-secondary:hover {
  border-color: var(--red);
  color: var(--red);
}

.hero-note {
  margin-top: 26px;
  color: #69717e;
  font-size: 13px;
  line-height: 1.55;
}

.portrait-wrap {
  width: 100%;
  max-width: 390px;
  justify-self: end;
}

.portrait-frame {
  position: relative;
  aspect-ratio: 1;
  padding: 9px;
  border: 1px solid #cfd4da;
  border-radius: 8px;
  background: var(--paper);
  box-shadow: 18px 20px 0 rgba(17, 19, 25, 0.06);
}

.portrait-frame img {
  width: 100%;
  height: 100%;
  aspect-ratio: 1;
  border-radius: 5px;
  object-fit: cover;
}

.portrait-accent {
  position: absolute;
  width: 42px;
  height: 5px;
}

.accent-blue {
  top: -3px;
  left: 28px;
  background: var(--blue);
}

.accent-red {
  right: 28px;
  bottom: -3px;
  background: var(--red);
}

.portrait-wrap figcaption {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-top: 18px;
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 650;
  line-height: 1.4;
  text-transform: uppercase;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.status i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4c9b64;
}

.statement {
  padding: 58px 0 64px;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.statement-inner {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 48px;
  align-items: start;
}

.statement h2 {
  max-width: 910px;
  font-size: 36px;
  font-weight: 620;
  line-height: 1.25;
}

.section.news-section {
  padding: 68px 0;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.news-layout {
  display: grid;
  grid-template-columns: 0.55fr 1.45fr;
  gap: 80px;
  align-items: start;
}

.news-layout h2 {
  margin-top: 11px;
  font-size: 48px;
}

.news-list {
  border-top: 1px solid #cfd4da;
}

.news-item {
  display: grid;
  grid-template-columns: 112px 1fr;
  gap: 28px;
  padding: 18px 0 20px;
  border-bottom: 1px solid #cfd4da;
}

.news-item time {
  color: var(--blue);
  font-size: 13px;
  font-weight: 760;
}

.news-item p {
  color: var(--ink-soft);
  font-size: 15px;
}

.news-item a {
  color: var(--ink);
  font-weight: 720;
  text-decoration: underline;
  text-decoration-color: #aeb7c2;
  text-underline-offset: 3px;
}

.news-item a:hover {
  color: var(--blue);
}

.blue-text {
  color: var(--blue);
}

.red-text {
  color: var(--red);
}

.dark-text {
  color: var(--ink);
}

.section {
  padding: 88px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(240px, 0.8fr) minmax(360px, 1.2fr);
  align-items: end;
  gap: 60px;
  margin-bottom: 36px;
}

.section-heading h2,
.journey-section h2 {
  margin-top: 11px;
  font-size: 48px;
}

.section-heading > p {
  max-width: 660px;
  color: var(--ink-soft);
  font-size: 19px;
  line-height: 1.5;
}

.featured-work {
  background: var(--paper-muted);
}

.intact-feature {
  overflow: hidden;
  border: 1px solid #ccd2d9;
  border-radius: 8px;
  background: var(--paper);
}

.intact-visual {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-bottom: 1px solid var(--line);
  background: var(--dark);
}

.intact-visual img {
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform 360ms ease;
}

.intact-visual:hover img {
  transform: scale(1.012);
}

.intact-details {
  padding: 38px 42px 42px;
}

.paper-venue {
  color: var(--blue);
  font-size: 12px;
  font-weight: 780;
  text-transform: uppercase;
}

.paper-title {
  max-width: 900px;
  margin-top: 10px;
  font-size: 28px;
  line-height: 1.25;
}

.paper-meta {
  display: flex;
  flex-wrap: wrap;
  margin-top: 20px;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.paper-meta span:not(:last-child)::after {
  margin: 0 10px;
  color: var(--line-dark);
  content: "/";
}

.paper-summary {
  max-width: 930px;
  margin-top: 24px;
  color: #343a45;
  font-size: 20px;
  line-height: 1.6;
}

.paper-authors {
  margin-top: 18px;
  color: var(--ink-soft);
  font-size: 14px;
}

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

.result-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 34px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.result-grid > div {
  min-width: 0;
  padding: 22px 20px;
}

.result-grid > div:first-child {
  padding-left: 0;
}

.result-grid > div:not(:last-child) {
  border-right: 1px solid var(--line);
}

.result-grid dt {
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.result-grid dd {
  margin-top: 5px;
  font-size: 23px;
  font-weight: 760;
  line-height: 1.2;
}

.paper-links {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin-top: 28px;
  font-size: 14px;
  font-weight: 740;
}

.open-work {
  display: grid;
  grid-template-columns: 48px minmax(180px, 0.8fr) minmax(320px, 1.5fr) auto;
  align-items: center;
  gap: 26px;
  margin-top: 20px;
  padding: 26px 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.open-work-index {
  color: var(--blue);
  font-size: 13px;
  font-weight: 760;
}

.open-work h3 {
  margin-top: 6px;
  font-size: 22px;
}

.open-work > p {
  color: var(--ink-soft);
  font-size: 14px;
}

.open-work-links {
  display: flex;
  gap: 16px;
  white-space: nowrap;
  font-size: 13px;
  font-weight: 720;
}

.research-section {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.section-heading.compact {
  align-items: start;
  margin-bottom: 54px;
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 42px;
}

.research-grid article {
  padding-top: 20px;
  border-top: 2px solid var(--ink);
}

.research-grid article:nth-child(1) {
  border-top-color: var(--blue);
}

.research-grid article:nth-child(2) {
  border-top-color: var(--red);
}

.topic-index {
  font-size: 12px;
  font-weight: 800;
}

.research-grid h3 {
  margin-top: 26px;
  font-size: 23px;
}

.research-grid p {
  margin-top: 16px;
  color: var(--ink-soft);
  font-size: 15px;
}

.journey-section {
  background: var(--paper-muted);
}

.journey-layout {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 80px;
}

.timeline {
  border-top: 1px solid #cfd4da;
}

.timeline-item {
  display: grid;
  grid-template-columns: 142px 1fr;
  gap: 28px;
  padding: 28px 0 32px;
  border-bottom: 1px solid #cfd4da;
}

.timeline-date {
  color: var(--blue);
  font-size: 13px;
  font-weight: 760;
}

.timeline-item h3 {
  font-size: 22px;
}

.timeline-place {
  margin-top: 8px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.timeline-item div > p:last-child {
  max-width: 620px;
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 14px;
}

.contact-section {
  padding: 74px 0;
  background: var(--dark);
  color: var(--paper);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 90px;
  align-items: start;
}

.section-kicker.light {
  color: #9ba7b6;
}

.contact-section h2 {
  max-width: 560px;
  margin-top: 16px;
  font-size: 42px;
  line-height: 1.2;
}

.contact-copy > p {
  max-width: 540px;
  color: #c1c8d2;
  font-size: 17px;
}

.contact-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-top: 30px;
  border-top: 1px solid var(--line-dark);
}

.contact-links a {
  min-width: 0;
  padding: 15px 12px 15px 0;
  border-bottom: 1px solid var(--line-dark);
  color: #eef2f6;
  font-size: 13px;
  overflow-wrap: anywhere;
}

.contact-links a:hover {
  color: #65a5e0;
}

.site-footer {
  padding: 22px 0;
  border-top: 1px solid #222a36;
  background: var(--dark);
  color: #818b99;
  font-size: 11px;
  text-transform: uppercase;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

@media (max-width: 980px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr) 290px;
    gap: 46px;
  }

  .hero h1 {
    font-size: 54px;
  }

  .hero-lede {
    font-size: 18px;
  }

  .portrait-wrap {
    max-width: 290px;
  }

  .open-work {
    grid-template-columns: 40px 180px 1fr;
  }

  .open-work-links {
    grid-column: 3;
  }

  .contact-layout {
    gap: 50px;
  }
}

@media (max-width: 760px) {
  .shell {
    width: min(calc(100% - 30px), var(--shell));
  }

  .site-header {
    height: 60px;
  }

  .wordmark > span:last-child {
    display: none;
  }

  .site-nav {
    gap: 17px;
    font-size: 12px;
  }

  .site-nav .nav-mobile-hide {
    display: none;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr) 140px;
    column-gap: 18px;
    row-gap: 22px;
    min-height: 0;
    padding: 34px 0 36px;
  }

  .hero-copy {
    display: contents;
  }

  .eyebrow,
  .hero-lede,
  .research-index,
  .hero-actions,
  .hero-note {
    grid-column: 1 / -1;
  }

  .eyebrow {
    grid-row: 1;
    order: 1;
  }

  .hero h1 {
    grid-column: 1;
    grid-row: 2;
    order: 2;
    align-self: center;
    margin-top: 0;
    font-size: 45px;
  }

  .portrait-wrap {
    grid-column: 2;
    grid-row: 2;
    order: 3;
    width: 140px;
    justify-self: end;
  }

  .portrait-frame {
    padding: 6px;
    box-shadow: 10px 11px 0 rgba(17, 19, 25, 0.06);
  }

  .portrait-wrap figcaption {
    display: none;
  }

  .hero-lede {
    grid-row: 3;
    order: 4;
    margin-top: 0;
    font-size: 17px;
  }

  .research-index {
    grid-row: 4;
    order: 5;
    margin-top: 0;
  }

  .hero-actions {
    grid-row: 5;
    order: 6;
    margin-top: 0;
  }

  .hero-note {
    grid-row: 6;
    order: 7;
    margin-top: 0;
  }

  .statement {
    padding: 48px 0;
  }

  .statement-inner,
  .news-layout,
  .section-heading,
  .journey-layout,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .statement h2 {
    font-size: 29px;
  }

  .news-section {
    padding: 52px 0;
  }

  .news-layout {
    gap: 28px;
  }

  .news-layout h2 {
    font-size: 39px;
  }

  .news-item {
    grid-template-columns: 1fr;
    gap: 5px;
    padding: 16px 0 18px;
  }

  .section {
    padding: 64px 0;
  }

  .section-heading {
    align-items: start;
    margin-bottom: 28px;
  }

  .section-heading h2,
  .journey-section h2 {
    font-size: 39px;
  }

  .section-heading > p {
    font-size: 16px;
  }

  .intact-details {
    padding: 28px 22px 30px;
  }

  .paper-summary {
    font-size: 17px;
  }

  .paper-title {
    font-size: 23px;
  }

  .result-grid {
    grid-template-columns: 1fr 1fr;
  }

  .result-grid > div,
  .result-grid > div:first-child {
    padding: 17px 12px;
  }

  .result-grid > div:nth-child(2) {
    border-right: 0;
  }

  .result-grid > div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .result-grid dd {
    font-size: 19px;
  }

  .open-work {
    grid-template-columns: 34px 1fr;
    gap: 18px;
    padding: 23px 20px;
  }

  .open-work > p,
  .open-work-links {
    grid-column: 2;
  }

  .research-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .journey-layout {
    gap: 38px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .contact-section {
    padding: 58px 0;
  }

  .contact-section h2 {
    font-size: 34px;
  }

  .contact-links {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 430px) {
  .site-nav {
    gap: 13px;
  }

  .hero h1 {
    font-size: 38px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .paper-meta span {
    width: 100%;
  }

  .paper-meta span:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 350px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr) 104px;
    column-gap: 12px;
    row-gap: 12px;
    padding: 26px 0 28px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .portrait-wrap {
    width: 104px;
  }

  .hero-lede {
    font-size: 16px;
    line-height: 1.48;
  }

  .button {
    min-height: 40px;
    padding: 8px 12px;
  }

  .hero-note {
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}