:root {
  color-scheme: light;
  --paper: #f4efe6;
  --paper-deep: #e8dfd1;
  --surface: #fffdf8;
  --ink: #182329;
  --muted: #647078;
  --teal: #176c70;
  --teal-dark: #0d4f54;
  --teal-soft: #dcebea;
  --copper: #b76b3d;
  --rule: #d6cdbf;
  --dark: #14282c;
  --shadow: 0 22px 60px rgba(44, 56, 55, 0.12);
  --radius-lg: 30px;
  --radius-md: 18px;
  --font-display: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 7% 4%, rgba(255, 255, 255, 0.8), transparent 24rem),
    var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

:focus-visible {
  outline: 3px solid var(--copper);
  outline-offset: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  transform: translateY(-150%);
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-weight: 700;
}

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

.site-shell {
  width: min(1160px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  border-bottom: 1px solid rgba(99, 84, 67, 0.15);
  background: rgba(244, 239, 230, 0.9);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 50% 50% 42% 58%;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: -0.03em;
  font-style: italic;
  font-weight: 700;
  transform: rotate(-5deg);
}

.brand-text {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.15em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.site-nav a {
  position: relative;
  padding-block: 8px;
  color: #34434a;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 2px;
  background: var(--teal);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span:not(.sr-only) {
  position: absolute;
  width: 22px;
  height: 2px;
  background: var(--ink);
  transition: transform 180ms ease;
}

.nav-toggle span:nth-child(2) {
  transform: translateY(-4px);
}

.nav-toggle span:nth-child(3) {
  transform: translateY(4px);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg);
}

.hero {
  display: grid;
  min-height: calc(100vh - 76px);
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
  gap: clamp(40px, 7vw, 100px);
  align-items: center;
  padding-block: 72px 88px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1,
.page-hero h1,
.section-heading h2,
.news-layout h2,
.feature-copy h3 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(48px, 6.2vw, 88px);
}

.hero h1 em {
  color: var(--teal);
  font-style: italic;
  white-space: nowrap;
}

.hero-lead {
  max-width: 640px;
  margin: 28px 0 0;
  color: #445159;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 750;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

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

.button-primary {
  background: var(--teal-dark);
  box-shadow: 0 10px 25px rgba(13, 79, 84, 0.18);
  color: #fff;
}

.button-primary:hover {
  background: #083f43;
  box-shadow: 0 14px 30px rgba(13, 79, 84, 0.25);
}

.button-quiet {
  border-color: var(--rule);
  background: rgba(255, 255, 255, 0.38);
}

.button-quiet:hover {
  background: var(--surface);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 38px 0 0;
  padding: 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
  list-style: none;
}

.hero-meta li {
  position: relative;
}

.hero-meta li:not(:first-child)::before {
  position: absolute;
  top: 50%;
  left: -15px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--copper);
  content: "";
}

.hero-visual {
  display: flex;
  justify-content: flex-end;
}

.orbit-card {
  position: relative;
  width: min(100%, 440px);
  aspect-ratio: 0.82;
  overflow: hidden;
  border: 1px solid rgba(23, 108, 112, 0.2);
  border-radius: 45% 45% 28% 28% / 30% 30% 16% 16%;
  background: linear-gradient(145deg, #e3f0ed, #f9f5ec 56%, #ead7c8);
  box-shadow: var(--shadow);
}

.orbit-grid {
  position: absolute;
  inset: 0;
  opacity: 0.36;
  background-image:
    linear-gradient(rgba(23, 108, 112, 0.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 108, 112, 0.15) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, #000, transparent 85%);
}

.orbit {
  position: absolute;
  border: 1px solid rgba(23, 108, 112, 0.55);
  border-radius: 50%;
}

.orbit-one {
  inset: 17% -6% 23% 16%;
  transform: rotate(-12deg);
}

.orbit-two {
  inset: 29% 12% 10% -13%;
  border-color: rgba(183, 107, 61, 0.52);
  transform: rotate(24deg);
}

.signal {
  position: absolute;
  width: 14px;
  height: 14px;
  border: 4px solid var(--surface);
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 6px 14px rgba(24, 35, 41, 0.18);
}

.signal-a { top: 26%; left: 30%; }
.signal-b { top: 54%; right: 18%; background: var(--copper); }
.signal-c { right: 44%; bottom: 24%; }

.orbit-label {
  position: absolute;
  z-index: 1;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.orbit-label-top { top: 8%; right: 11%; }
.orbit-label-bottom { bottom: 12%; left: 11%; }

.orbit-label-middle {
  top: 43%;
  left: 50%;
  color: var(--teal-dark);
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 48px);
  font-style: italic;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 0.88;
  text-align: center;
  text-transform: none;
  transform: translate(-50%, -50%);
}

.orbit-caption {
  position: absolute;
  right: 9%;
  bottom: 8%;
  margin: 0;
  color: #425358;
  font-family: var(--font-display);
  font-size: 14px;
  font-style: italic;
  line-height: 1.35;
  text-align: right;
}

.affiliation-section {
  padding-block: 20px 78px;
}

.affiliation-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.affiliation-card {
  display: grid;
  overflow: hidden;
  min-height: 118px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  background: rgba(255, 253, 248, 0.7);
  color: inherit;
  grid-template-columns: 180px 1fr;
  align-items: stretch;
  text-decoration: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.affiliation-card:hover {
  border-color: rgba(13, 79, 84, 0.38);
  box-shadow: 0 16px 34px rgba(34, 42, 45, 0.08);
  transform: translateY(-2px);
}

.affiliation-logo-wrap {
  display: grid;
  padding: 20px;
  border-right: 1px solid var(--rule);
  background: #fff;
  place-items: center;
}

.affiliation-logo-wrap img {
  width: 150px;
  max-height: 62px;
  object-fit: contain;
}

.affiliation-logo-wrap-seal img {
  width: 76px;
  max-height: 76px;
}

.affiliation-copy {
  display: grid;
  gap: 7px;
  align-content: center;
  padding: 22px 24px;
}

.affiliation-copy strong {
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.2;
}

.affiliation-copy small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.45;
}

.section {
  padding-block: 112px;
}

.section-tinted {
  border-block: 1px solid rgba(99, 84, 67, 0.12);
  background: rgba(255, 253, 248, 0.62);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 42px;
}

.section-heading h2,
.news-layout h2 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(38px, 5vw, 62px);
}

.text-link {
  flex: 0 0 auto;
  padding-block: 8px;
  color: var(--teal-dark);
  font-size: 14px;
  font-weight: 750;
  text-decoration: none;
}

.text-link span {
  display: inline-block;
  margin-left: 4px;
  transition: transform 160ms ease;
}

.text-link:hover span {
  transform: translateX(5px);
}

.card-grid {
  display: grid;
  gap: 18px;
}

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

.research-card {
  position: relative;
  min-height: 340px;
  padding: 32px;
  overflow: hidden;
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  background: var(--surface);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.research-card:hover {
  border-color: rgba(23, 108, 112, 0.55);
  box-shadow: 0 16px 36px rgba(44, 56, 55, 0.09);
  transform: translateY(-5px);
}

.card-index {
  color: var(--copper);
  font-family: var(--font-display);
  font-size: 18px;
  font-style: italic;
}

.research-card h3 {
  max-width: 280px;
  margin: 56px 0 18px;
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.25;
}

.research-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.card-tag {
  position: absolute;
  bottom: 28px;
  left: 32px;
  color: var(--teal);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.feature-panel {
  display: grid;
  padding: clamp(30px, 5vw, 64px);
  border-radius: var(--radius-lg);
  background: var(--teal-soft);
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(48px, 8vw, 110px);
  align-items: center;
}

.kicker {
  margin: 0 0 12px;
  color: var(--copper);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.feature-copy h3 {
  margin: 0 0 20px;
  font-size: clamp(36px, 4vw, 54px);
}

.feature-copy p:not(.kicker) {
  margin: 0 0 28px;
  color: #405257;
}

.mini-chart {
  padding: 28px;
  border: 1px solid rgba(23, 108, 112, 0.18);
  border-radius: 18px;
  background: rgba(255, 253, 248, 0.76);
  box-shadow: 0 16px 40px rgba(13, 79, 84, 0.08);
}

.mini-chart-row {
  display: grid;
  grid-template-columns: 82px 1fr;
  gap: 18px;
  align-items: center;
  padding-block: 14px;
  color: #425358;
  font-size: 12px;
  font-weight: 750;
}

.mini-chart-row + .mini-chart-row {
  border-top: 1px solid rgba(23, 108, 112, 0.12);
}

.mini-chart-row i {
  display: block;
  width: var(--value);
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--teal), #56a7a4);
}

.section-dark {
  background: var(--dark);
  color: #eef5f2;
}

.eyebrow-light {
  color: #90c7c4;
}

.news-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(60px, 10vw, 140px);
}

.section-intro {
  max-width: 420px;
  color: #afbfbd;
}

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

.news-list li {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 22px;
  padding: 26px 0;
  border-top: 1px solid rgba(237, 245, 242, 0.17);
}

.news-list li:last-child {
  border-bottom: 1px solid rgba(237, 245, 242, 0.17);
}

.news-list time {
  color: #90c7c4;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.news-list div {
  display: grid;
  gap: 5px;
}

.news-list strong {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
}

.news-list span {
  color: #afbfbd;
  font-size: 14px;
}

.site-footer {
  padding-block: 64px;
  border-top: 1px solid var(--rule);
  background: #ede6da;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr auto;
  gap: 50px;
  align-items: end;
}

.footer-brand {
  margin-bottom: 14px;
}

.footer-inner p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.footer-links {
  display: grid;
  gap: 7px;
  font-size: 13px;
  font-weight: 700;
}

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

.footer-links a:hover {
  color: var(--teal);
}

.copyright {
  text-align: right;
}

/* Inner pages */
.page-hero {
  padding-block: 94px 70px;
  border-bottom: 1px solid var(--rule);
}

.page-hero h1 {
  max-width: 900px;
  margin: 0;
  font-size: clamp(52px, 7vw, 90px);
}

.page-hero p:not(.eyebrow) {
  max-width: 720px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 20px;
}

.page-hero-compact {
  padding-block: 58px 44px;
}

.page-hero-compact h1 {
  max-width: 1080px;
  font-size: clamp(46px, 6vw, 72px);
}

.page-hero-compact p:not(.eyebrow) {
  max-width: 820px;
  margin-top: 18px;
  font-size: 17px;
}

.study-meta-strip {
  display: grid;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--rule);
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 34px;
  align-items: end;
}

.study-meta-grid {
  display: grid;
  margin: 0;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 32px;
}

.study-meta-grid div {
  display: grid;
  gap: 2px;
}

.study-meta-grid dt {
  color: var(--teal);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.study-meta-grid dd {
  margin: 0;
  color: #425058;
  font-size: 14px;
  font-weight: 650;
}

.study-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.study-links a {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  padding: 7px 13px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: rgba(255, 253, 248, 0.55);
  color: var(--teal-dark);
  font-size: 12px;
  font-weight: 750;
  text-decoration: none;
}

.study-links a:hover {
  border-color: var(--teal);
  background: var(--teal-soft);
}

.materials-detail .content-layout {
  padding-top: 54px;
}

.materials-detail .prose h2 {
  scroll-margin-top: 110px;
}

.content-layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 760px);
  gap: clamp(50px, 9vw, 120px);
  padding-block: 90px 120px;
}

.content-aside {
  color: var(--muted);
  font-size: 13px;
}

.content-aside strong {
  display: block;
  margin-bottom: 10px;
  color: var(--teal-dark);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.content-aside a {
  color: var(--teal-dark);
  font-weight: 700;
}

.prose {
  font-size: 17px;
}

.prose h2 {
  margin: 72px 0 18px;
  font-family: var(--font-display);
  font-size: 38px;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h3 {
  margin: 32px 0 10px;
  font-family: var(--font-display);
  font-size: 24px;
}

.prose p {
  color: #425058;
}

.prose a {
  color: var(--teal-dark);
  font-weight: 700;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0;
  padding: 0;
  list-style: none;
}

.pill-list li {
  padding: 8px 14px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: rgba(255, 253, 248, 0.62);
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 700;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-block: 34px;
}

.info-card {
  padding: 26px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.info-card h3 {
  margin-top: 0;
}

.institution-heading {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

.institution-heading h3 {
  margin: 0;
}

.institution-heading img {
  width: 108px;
  height: 54px;
  flex: 0 0 auto;
  padding: 7px 10px;
  border: 1px solid var(--rule);
  border-radius: 11px;
  background: #fff;
  object-fit: contain;
}

.institution-heading img.institution-logo-seal {
  width: 54px;
  padding: 5px;
}

.institution-heading-wide img {
  width: 126px;
}

.institution-heading-wide img.institution-logo-seal {
  width: 58px;
  height: 58px;
}

.info-card p {
  margin-bottom: 0;
  font-size: 15px;
}

.prose > .info-card + .info-card {
  margin-top: 16px;
}

.publication-list {
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.publication-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 24px;
  padding-block: 28px;
  border-top: 1px solid var(--rule);
}

.publication-item:last-child {
  border-bottom: 1px solid var(--rule);
}

.publication-year {
  color: var(--copper);
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 700;
}

.publication-item h3 {
  margin: 0 0 7px;
  font-size: 22px;
}

.publication-item p {
  margin: 0;
  font-size: 14px;
}

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

.publication-links span,
.status-pill {
  display: inline-flex;
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--teal-soft);
  color: var(--teal-dark);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.empty-state {
  padding: 34px;
  border: 1px dashed #ae9f8b;
  border-radius: var(--radius-md);
  background: rgba(255, 253, 248, 0.45);
}

.empty-state h3 {
  margin-top: 0;
}

.material-card {
  display: grid;
  margin-top: 26px;
  padding: 30px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  background: var(--surface);
  grid-template-columns: 1fr auto;
  gap: 30px;
  align-items: center;
}

.material-card h3 {
  margin: 8px 0 10px;
}

.material-card p {
  margin: 0;
}

.visualization-frame {
  width: 100%;
  min-height: 620px;
  margin-top: 30px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.callout {
  margin-block: 30px;
  padding: 22px 24px;
  border-left: 4px solid var(--copper);
  border-radius: 0 12px 12px 0;
  background: rgba(255, 253, 248, 0.66);
  color: #425058;
}

.not-found {
  display: grid;
  min-height: calc(100vh - 76px);
  place-items: center;
  padding-block: 80px;
  text-align: center;
}

.not-found strong {
  display: block;
  color: var(--copper);
  font-family: var(--font-display);
  font-size: clamp(86px, 18vw, 180px);
  font-style: italic;
  font-weight: 500;
  line-height: 0.8;
}

.not-found h1 {
  margin: 32px 0 12px;
  font-family: var(--font-display);
  font-size: 42px;
}

.not-found p {
  margin: 0 0 28px;
  color: var(--muted);
}

@media (max-width: 900px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-block: 72px;
  }

  .hero-visual {
    justify-content: center;
  }

  .orbit-card {
    width: min(100%, 520px);
    aspect-ratio: 1.05;
  }

  .card-grid-three {
    grid-template-columns: 1fr;
  }

  .research-card {
    min-height: 280px;
  }

  .feature-panel,
  .news-layout,
  .content-layout {
    grid-template-columns: 1fr;
  }

  .content-layout {
    gap: 34px;
  }

  .content-aside {
    max-width: 520px;
  }

  .affiliation-card {
    grid-template-columns: 145px 1fr;
  }

  .affiliation-logo-wrap img {
    width: 116px;
  }
}

@media (max-width: 720px) {
  .site-shell {
    width: min(100% - 32px, 1160px);
  }

  .nav-toggle {
    position: relative;
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 76px;
    right: 0;
    left: 0;
    display: grid;
    gap: 0;
    padding: 10px 16px 20px;
    border-bottom: 1px solid var(--rule);
    background: rgba(244, 239, 230, 0.98);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 160ms ease, transform 160ms ease;
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    min-height: 48px;
    padding: 13px 8px;
    border-bottom: 1px solid rgba(99, 84, 67, 0.12);
  }

  .site-nav a::after {
    display: none;
  }

  .hero h1 {
    font-size: clamp(44px, 13vw, 68px);
  }

  .hero-meta {
    display: grid;
    gap: 6px;
  }

  .hero-meta li:not(:first-child)::before {
    display: none;
  }

  .affiliation-section {
    padding-block: 8px 62px;
  }

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

  .orbit-card {
    aspect-ratio: 0.9;
  }

  .section {
    padding-block: 82px;
  }

  .section-heading {
    align-items: start;
    flex-direction: column;
    gap: 16px;
  }

  .feature-panel {
    gap: 36px;
  }

  .mini-chart {
    padding: 18px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .copyright {
    text-align: left;
  }

  .page-hero {
    padding-block: 72px 54px;
  }

  .page-hero-compact {
    padding-block: 52px 38px;
  }

  .study-meta-strip,
  .study-meta-grid {
    grid-template-columns: 1fr;
  }

  .study-meta-strip,
  .study-meta-grid {
    gap: 16px;
  }

  .study-links {
    justify-content: flex-start;
  }

  .content-layout {
    padding-block: 64px 90px;
  }

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

  .material-card {
    grid-template-columns: 1fr;
  }

  .visualization-frame {
    min-height: 720px;
  }
}

@media (max-width: 440px) {
  .brand-text {
    font-size: 12px;
  }

  .hero-actions .button {
    width: 100%;
  }

  .research-card {
    padding: 26px;
  }

  .affiliation-card {
    grid-template-columns: 1fr;
  }

  .affiliation-logo-wrap {
    min-height: 92px;
    border-right: 0;
    border-bottom: 1px solid var(--rule);
  }

  .institution-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .publication-item,
  .news-list li {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .mini-chart-row {
    grid-template-columns: 70px 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}