:root {
  --ink: #152024;
  --ink-soft: #39474d;
  --paper: #f7f8f6;
  --surface: #ffffff;
  --line: #d9dedc;
  --line-strong: #b9c5c1;
  --muted: #e9f0ee;
  --dark: #10232b;
  --dark-2: #183744;
  --aqua: #31b7ae;
  --gold: #d9a441;
  --terra: #b65a3c;
  --blue: #2f6da3;
  --shadow: 0 18px 44px rgba(16, 35, 43, 0.14);
  --content: 1180px;
  --font-sans:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --font-sans-zh:
    "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "WenQuanYi Micro Hei", ui-sans-serif, system-ui, sans-serif;
  --font-display-zh:
    "Source Han Serif SC", "Noto Serif CJK SC", "Noto Serif SC", "Songti SC",
    "STSong", var(--font-sans-zh);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

html[lang="zh-CN"] body {
  font-family: var(--font-sans-zh);
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.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;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 34px;
  color: #fff;
  background: rgba(16, 35, 43, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  text-decoration: none;
  min-width: 190px;
}

.brand:hover {
  color: #fff;
}

.brand-mark {
  display: block;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(16, 35, 43, 0.1);
}

.brand-mark img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1rem;
  line-height: 1.1;
}

.brand small {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.76rem;
  line-height: 1.2;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 22px;
  font-size: 0.93rem;
}

.site-nav a {
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: #fff;
}

.language-switch {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(44px, 1fr));
  gap: 2px;
  padding: 3px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.language-option {
  min-height: 32px;
  padding: 5px 9px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: rgba(255, 255, 255, 0.74);
  cursor: pointer;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 780;
  line-height: 1;
}

.language-option:hover,
.language-option.is-active {
  background: #fff;
  color: var(--dark);
}

.nav-toggle {
  display: none;
}

.section {
  padding: 96px 24px;
}

.section-inner {
  width: min(100%, var(--content));
  margin: 0 auto;
}

.section-dark {
  background:
    radial-gradient(circle at 20% 20%, rgba(49, 183, 174, 0.22), transparent 32rem),
    linear-gradient(140deg, var(--dark), var(--dark-2) 58%, #2b2b24);
  color: #fff;
}

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

.hero {
  position: relative;
  min-height: 74vh;
  padding: 112px 24px 48px;
  overflow: hidden;
}

.hero-visual {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.76;
}

.hero-grid {
  position: relative;
  z-index: 1;
  width: min(100%, var(--content));
  min-height: 430px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.55fr);
  align-items: center;
  gap: 50px;
}

.hero-copy {
  max-width: 780px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--terra);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

.section-dark .eyebrow {
  color: var(--gold);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: 4.35rem;
  line-height: 0.98;
  font-weight: 850;
}

h2 {
  margin-bottom: 18px;
  font-size: 2.45rem;
  line-height: 1.08;
  font-weight: 780;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.18rem;
  line-height: 1.25;
}

html[lang="zh-CN"] h1,
html[lang="zh-CN"] h2 {
  font-family: var(--font-display-zh);
  font-weight: 700;
}

html[lang="zh-CN"] h1 {
  line-height: 1.08;
}

html[lang="zh-CN"] h2 {
  line-height: 1.16;
}

html[lang="zh-CN"] h3 {
  line-height: 1.34;
  font-weight: 720;
}

.hero-text {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 1.18rem;
}

html[lang="zh-CN"] .hero h1 {
  max-width: 8em;
  margin-bottom: 24px;
}

html[lang="zh-CN"] .hero .eyebrow {
  font-family: var(--font-display-zh);
  font-size: 1.02rem;
  font-weight: 650;
  line-height: 1.35;
  text-transform: none;
}

html[lang="zh-CN"] .hero-text {
  max-width: 720px;
  line-height: 1.82;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 750;
  text-decoration: none;
  line-height: 1.2;
}

.button-primary {
  background: var(--gold);
  color: #1b1d17;
}

.button-primary:hover {
  background: #efbb53;
  color: #1b1d17;
}

.button-secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.08);
}

.button-secondary:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.62);
}

.button-outline {
  color: var(--ink);
  border-color: var(--line);
  background: var(--surface);
}

.button-outline:hover {
  border-color: var(--blue);
}

.hero-panel {
  display: grid;
  gap: 24px;
  padding: clamp(26px, 2.4vw, 34px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  overflow: hidden;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.17), rgba(255, 255, 255, 0.07)),
    rgba(16, 35, 43, 0.28);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.hero-panel-head {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 22px;
  align-items: center;
}

.hero-panel-head img {
  display: block;
  width: 92px;
  height: 92px;
  border-radius: 8px;
  object-fit: cover;
  background: #fff;
}

.panel-kicker {
  display: block;
  margin-bottom: 8px;
  color: var(--gold);
  font-size: 0.88rem;
  font-weight: 850;
  line-height: 1.2;
  text-transform: uppercase;
}

html[lang="zh-CN"] .panel-kicker {
  font-family: var(--font-sans-zh);
  font-weight: 720;
  line-height: 1.35;
  text-transform: none;
}

.hero-panel-head strong {
  display: block;
  color: #fff;
  max-width: 11em;
  font-size: 1.6rem;
  line-height: 1.12;
  font-weight: 820;
}

html[lang="zh-CN"] .hero-panel-head strong {
  font-family: var(--font-display-zh);
  font-size: 1.76rem;
  font-weight: 700;
  line-height: 1.3;
}

.workflow-map {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  min-width: 0;
  max-width: 100%;
}

.workflow-map span {
  position: relative;
  display: grid;
  min-height: 58px;
  place-items: center;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 0.98rem;
  font-weight: 820;
  text-align: center;
  min-width: 0;
  overflow-wrap: normal;
}

.workflow-map span:not(:last-child)::after {
  position: absolute;
  right: -9px;
  color: rgba(255, 255, 255, 0.58);
  content: "";
}

.hero-panel-body {
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.hero-panel-body p {
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 1.05rem;
  line-height: 1.78;
}

html[lang="zh-CN"] .hero-panel-body p {
  font-size: 1.08rem;
  line-height: 1.82;
}

.hero-panel-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  min-width: 0;
}

.hero-panel-tags span {
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.86rem;
  font-weight: 790;
}

html[lang="zh-CN"] .hero-panel-tags span,
html[lang="zh-CN"] .workflow-map span,
html[lang="zh-CN"] .button,
html[lang="zh-CN"] .site-nav,
html[lang="zh-CN"] .language-option {
  font-family: var(--font-sans-zh);
}

html[lang="zh-CN"] .workflow-map span {
  min-height: 62px;
  font-size: 1.16rem;
  font-weight: 760;
  line-height: 1.25;
}

.intro-band {
  padding-top: 42px;
  padding-bottom: 42px;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.intro-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
}

.intro-layout p {
  max-width: 900px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.text-link {
  color: var(--blue);
  font-weight: 760;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 44px;
}

.section-heading p:not(.eyebrow) {
  color: var(--ink-soft);
}

.compact {
  margin-bottom: 0;
}

.research-grid,
.home-feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.home-feature-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.research-card,
.profile-card,
.product-card,
.publication-list article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 12px 34px rgba(16, 35, 43, 0.08);
}

.research-card {
  padding: 26px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  min-width: 0;
}

.product-card {
  display: flex;
  min-width: 0;
  min-height: 270px;
  flex-direction: column;
  padding: 26px;
}

.product-card .text-link {
  margin-top: auto;
}

.product-card p {
  color: var(--ink-soft);
}

.product-card h3,
.product-card p,
.product-card a {
  overflow-wrap: anywhere;
}

.product-status {
  display: inline-flex;
  align-self: flex-start;
  margin-bottom: 20px;
  padding: 5px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--terra);
  font-size: 0.78rem;
  font-weight: 850;
}

.research-card .research-icon {
  display: block;
  width: 54px;
  height: 54px;
  margin-bottom: 22px;
  color: var(--blue);
}

.research-icon circle,
.research-icon path,
.research-icon line,
.research-icon ellipse {
  fill: none;
  stroke: currentColor;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.research-icon circle {
  fill: rgba(49, 183, 174, 0.14);
}

.home-feature-grid .research-card {
  display: flex;
  min-height: 280px;
  flex-direction: column;
}

.home-feature-grid .text-link {
  margin-top: auto;
}

.card-index {
  margin-bottom: 34px;
  color: var(--terra);
  font-size: 0.82rem;
  font-weight: 850;
}

.research-card p,
.profile-card p,
.publication-list p,
.join-copy p,
.contact-grid p,
address {
  color: var(--ink-soft);
}

.people-layout,
.publications-layout,
.contact-layout,
.background-layout,
.outputs-layout,
.philosophy-layout,
.framework-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
  gap: 44px;
  align-items: start;
}

.framework-layout {
  grid-template-columns: 1fr;
}

.framework-layout .section-heading {
  max-width: 760px;
}

.representation-map {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    radial-gradient(circle at 16% 24%, rgba(49, 183, 174, 0.16), transparent 18rem),
    radial-gradient(circle at 84% 28%, rgba(217, 164, 65, 0.16), transparent 18rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(245, 248, 247, 0.96)),
    var(--surface);
  box-shadow: 0 12px 34px rgba(16, 35, 43, 0.08);
}

.representation-map svg {
  display: block;
  width: 100%;
  height: auto;
}

.map-backbone {
  fill: none;
  stroke: url("#map-path");
  stroke-width: 5;
  stroke-linecap: round;
  opacity: 0.88;
}

.map-stage rect {
  fill: rgba(255, 255, 255, 0.86);
  stroke: rgba(185, 197, 193, 0.92);
  stroke-width: 1.2;
  filter: drop-shadow(0 10px 20px rgba(16, 35, 43, 0.08));
}

.map-stage path,
.map-stage line,
.map-stage circle {
  fill: none;
  stroke: var(--blue);
  stroke-width: 3.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.map-stage circle {
  fill: #fff;
  stroke-width: 3.2;
}

.map-stage text {
  fill: var(--ink);
  font-size: 17px;
  font-weight: 780;
}

html[lang="zh-CN"] .map-stage text,
html[lang="zh-CN"] .research-visual-labels text,
html[lang="zh-CN"] .research-transform-label {
  font-family: var(--font-sans-zh);
}

.map-stage-representation path,
.map-stage-transform path {
  stroke: var(--terra);
}

.map-stage-intelligence path,
.map-stage-intelligence circle {
  stroke: var(--aqua);
}

.profile-card {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 26px;
  padding: 26px;
  min-width: 0;
}

.profile-photo {
  display: block;
  width: 150px;
  height: 190px;
  border-radius: 8px;
  background:
    linear-gradient(150deg, rgba(49, 183, 174, 0.95), rgba(47, 109, 163, 0.9)),
    var(--dark);
  object-fit: cover;
  object-position: center 20%;
}

.role {
  margin-bottom: 16px;
  color: var(--terra);
  font-weight: 720;
}

.profile-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.profile-content {
  min-width: 0;
}

.profile-links a {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--blue);
  font-weight: 720;
  text-decoration: none;
}

.publication-list {
  display: grid;
  gap: 14px;
}

.timeline-grid,
.output-grid,
.member-grid,
.philosophy-grid,
.framework-flow {
  display: grid;
  gap: 18px;
}

.timeline-grid,
.output-grid,
.philosophy-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.framework-flow {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.timeline-grid section,
.output-grid article,
.member-grid article,
.philosophy-grid article,
.framework-flow article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 12px 34px rgba(16, 35, 43, 0.08);
}

.timeline-grid section,
.output-grid article,
.member-grid article,
.philosophy-grid article,
.framework-flow article {
  padding: 24px;
}

.framework-flow article {
  position: relative;
  min-height: 210px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(245, 248, 247, 0.96)),
    var(--surface);
}

.framework-flow article:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 44px;
  right: -18px;
  width: 18px;
  height: 1px;
  background: var(--line-strong);
}

.framework-flow span {
  display: inline-block;
  margin-bottom: 32px;
  color: var(--terra);
  font-size: 0.78rem;
  font-weight: 850;
}

.framework-flow h3 {
  font-size: 1.02rem;
}

.timeline-list {
  display: grid;
  gap: 16px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.timeline-list li {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.timeline-list span {
  color: var(--terra);
  font-size: 0.82rem;
  font-weight: 850;
}

.timeline-list p,
.output-grid p,
.member-grid p,
.philosophy-grid p,
.framework-flow p {
  margin: 0;
  color: var(--ink-soft);
}

.member-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.member-photo {
  display: block;
  width: min(100%, 156px);
  aspect-ratio: 1;
  margin-bottom: 18px;
  border-radius: 8px;
  object-fit: cover;
  object-position: center 22%;
  background: var(--muted);
}

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

.page-hero {
  padding: 138px 24px 78px;
}

.page-hero .section-inner {
  max-width: 860px;
}

.page-hero h1 {
  margin-bottom: 18px;
}

.page-hero p:not(.eyebrow) {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.14rem;
}

.page-hero .research-hero-layout {
  display: grid;
  width: min(100%, var(--content));
  max-width: var(--content);
  grid-template-columns: minmax(0, 0.86fr) minmax(360px, 0.74fr);
  gap: 48px;
  align-items: center;
}

.research-hero-layout > *,
.research-grid > *,
.people-layout > *,
.framework-flow > * {
  min-width: 0;
}

.research-hero-visual {
  margin: 0;
  min-width: 0;
}

.research-hero-visual svg {
  display: block;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 18px 34px rgba(0, 0, 0, 0.22));
}

.research-visual-grid,
.research-visual-line,
.research-arrow {
  fill: none;
  stroke: rgba(255, 255, 255, 0.62);
  stroke-width: 3;
  stroke-linecap: round;
}

.research-visual-line.soft {
  stroke: rgba(255, 255, 255, 0.32);
}

.research-visual-surface {
  fill: url("#research-surface");
  opacity: 0.84;
}

.research-glow {
  fill: url("#research-glow");
}

.molecule-cluster line,
.latent-nodes path {
  fill: none;
  stroke: rgba(255, 255, 255, 0.64);
  stroke-width: 3;
  stroke-linecap: round;
}

.molecule-cluster circle {
  fill: rgba(255, 255, 255, 0.92);
  stroke: var(--aqua);
  stroke-width: 4;
}

.latent-nodes circle {
  fill: var(--gold);
  stroke: rgba(255, 255, 255, 0.9);
  stroke-width: 3;
}

.research-visual-labels text,
.research-transform-label {
  fill: rgba(255, 255, 255, 0.86);
  font-size: 17px;
  font-weight: 760;
}

.research-transform-label {
  fill: var(--gold);
  font-size: 20px;
}

.mini-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.mini-list span {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink-soft);
  font-weight: 720;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 34px rgba(16, 35, 43, 0.08);
}

.people-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 1040px;
}

.people-table th,
.people-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.people-table th {
  color: var(--ink);
  background: var(--muted);
  font-size: 0.86rem;
  font-weight: 820;
}

.people-table td {
  color: var(--ink-soft);
}

.people-table tbody tr:last-child td {
  border-bottom: 0;
}

.alumni-table th:nth-child(2),
.alumni-table td:nth-child(2) {
  width: 1%;
  white-space: nowrap;
}

.compact-table {
  margin-top: 18px;
  box-shadow: none;
}

.course-table {
  min-width: 720px;
}

.group-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.group-gallery figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 34px rgba(16, 35, 43, 0.08);
}

.group-gallery img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.group-gallery figcaption {
  padding: 12px 14px;
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 760;
}

.publication-list article {
  padding: 22px 24px;
}

.pub-year {
  margin-bottom: 5px;
  color: var(--terra);
  font-size: 0.83rem;
  font-weight: 850;
}

.publication-list h3 {
  margin-bottom: 8px;
}

.publication-list p {
  margin-bottom: 8px;
}

.publication-list a {
  color: var(--blue);
  font-weight: 760;
}

.join-section {
  padding-top: 76px;
  padding-bottom: 76px;
}

.join-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.7fr);
  gap: 50px;
  align-items: center;
}

.join-layout h2 {
  margin-bottom: 0;
}

.join-copy p {
  color: rgba(255, 255, 255, 0.78);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.contact-grid > * {
  padding: 22px;
  border-left: 3px solid var(--aqua);
  background: #fff;
}

address {
  font-style: normal;
}

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

.plain-list li + li {
  margin-top: 6px;
}

.site-footer {
  padding: 28px 24px;
  color: rgba(255, 255, 255, 0.76);
  background: #0b171d;
}

.footer-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: center;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: #fff;
}

.footer-meta a {
  text-decoration: none;
}

@media (max-width: 920px) {
  .site-header {
    gap: 10px;
    padding: 12px 18px;
  }

  .brand {
    min-width: 0;
  }

  .brand small {
    font-size: 0.68rem;
  }

  .language-switch {
    order: 2;
    grid-template-columns: repeat(2, minmax(38px, 1fr));
    margin-left: auto;
  }

  .language-option {
    padding-right: 7px;
    padding-left: 7px;
    font-size: 0.76rem;
  }

  .nav-toggle {
    order: 3;
    position: relative;
    display: inline-grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
  }

  .nav-toggle span[aria-hidden="true"],
  .nav-toggle span[aria-hidden="true"]::before,
  .nav-toggle span[aria-hidden="true"]::after {
    display: block;
    width: 18px;
    height: 2px;
    background: currentColor;
    content: "";
  }

  .nav-toggle span[aria-hidden="true"]::before {
    transform: translateY(-7px);
  }

  .nav-toggle span[aria-hidden="true"]::after {
    transform: translateY(5px);
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 18px 16px;
    background: rgba(16, 35, 43, 0.96);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .hero {
    min-height: auto;
    padding-top: 104px;
    padding-bottom: 32px;
  }

  .hero-grid,
  .page-hero .research-hero-layout,
  .people-layout,
  .publications-layout,
  .join-layout,
  .contact-layout,
  .background-layout,
  .outputs-layout,
  .philosophy-layout,
  .framework-layout {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    min-height: 0;
    gap: 24px;
  }

  .page-hero .research-hero-layout {
    width: 100%;
    max-width: 100%;
    gap: 34px;
  }

  .research-hero-visual {
    max-width: 680px;
  }

  h1 {
    font-size: 3.25rem;
  }

  h2 {
    font-size: 2rem;
  }

  .research-grid,
  .home-feature-grid,
  .product-grid,
  .contact-grid,
  .timeline-grid,
  .output-grid,
  .philosophy-grid,
  .framework-flow,
  .member-grid,
  .group-gallery {
    grid-template-columns: 1fr;
  }

  .framework-flow article {
    min-height: 0;
  }

  .framework-flow article:not(:last-child)::after {
    top: auto;
    right: auto;
    bottom: -18px;
    left: 24px;
    width: 1px;
    height: 18px;
  }

  .intro-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  body {
    width: 100%;
  }

  .site-header {
    gap: 8px;
    padding: 10px 12px;
  }

  .brand {
    flex: 1 1 auto;
    gap: 8px;
    min-width: 0;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    flex: 0 0 auto;
  }

  .brand small {
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .language-switch {
    grid-template-columns: repeat(2, minmax(34px, 1fr));
  }

  .nav-toggle {
    width: 40px;
    height: 40px;
  }

  .section {
    padding: 70px 18px;
  }

  .section-inner {
    width: calc(100vw - 36px) !important;
    max-width: calc(100vw - 36px) !important;
    margin-right: 0;
    margin-left: 0;
  }

  .page-hero .section-inner {
    width: calc(100vw - 36px) !important;
    max-width: calc(100vw - 36px) !important;
  }

  .page-hero p:not(.eyebrow),
  .section-heading,
  .section-heading p:not(.eyebrow) {
    max-width: 100%;
    overflow-wrap: anywhere;
  }

  .hero {
    padding: 108px 18px 54px;
  }

  .page-hero {
    padding: 118px 18px 64px;
  }

  .representation-map {
    overflow-x: auto;
  }

  .representation-map svg {
    max-width: none;
    min-width: 760px;
  }

  h1 {
    font-size: 2.7rem;
  }

  h2 {
    font-size: 1.72rem;
  }

  .hero-text {
    font-size: 1.04rem;
  }

  .hero-copy,
  .hero-panel {
    min-width: 0;
    max-width: 100%;
  }

  .hero-panel {
    gap: 16px;
    padding: 18px;
  }

  .hero-panel-head {
    grid-template-columns: 58px minmax(0, 1fr);
  }

  .hero-panel-head img {
    width: 58px;
    height: 58px;
  }

  .hero-panel-head strong {
    font-size: 1.02rem;
  }

  .workflow-map {
    grid-template-columns: 1fr;
  }

  .workflow-map span:not(:last-child)::after {
    content: "";
  }

  .button {
    width: 100%;
  }

  .profile-card {
    grid-template-columns: 1fr;
    width: 100%;
    max-width: calc(100vw - 36px);
    overflow: hidden;
  }

  .profile-content,
  .profile-content p,
  .profile-content h3 {
    max-width: 100%;
    overflow-wrap: anywhere;
  }

  .profile-photo {
    width: min(100%, 220px);
    height: auto;
    object-fit: contain;
    object-position: center;
  }

  .profile-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .profile-links a {
    text-align: center;
  }

  .product-grid {
    display: block;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
  }

  .product-card {
    width: 100%;
    max-width: calc(100vw - 36px);
    overflow: hidden;
  }

  .product-card + .product-card {
    margin-top: 18px;
  }

  .timeline-list li {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .footer-layout {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}