:root {
  color-scheme: dark;
  --bg: #000;
  --ink: #fff;
  --muted: #aaa;
  --dim: #666;
  --line: #4a4a4a;
  --panel: #090909;
  --soft: #151515;
  --hairline: rgba(255,255,255,0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 0%, rgba(255,255,255,0.06), transparent 28%),
    linear-gradient(180deg, #050505 0%, #000 38%, #000 100%);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", "Songti SC", serif;
  font-size: 16px;
  line-height: 1.35;
  -webkit-font-smoothing: antialiased;
}

.site-header {
  position: relative;
  z-index: 10;
  height: 76px;
  margin: 0 45px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 22px;
}

.brand,
nav a,
.metric small,
.project-no,
.project-meta,
button,
input {
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
}

.brand {
  background: transparent;
  color: var(--ink);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.brand-logo img {
  width: 182px;
  height: auto;
  display: block;
  filter: grayscale(1) invert(1) brightness(1.8) contrast(1.25);
}

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

.brand em {
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  font-weight: 400;
}

.header-rule {
  height: 1px;
  background: var(--line);
  transform: translateY(1px);
}

nav {
  display: flex;
  gap: 18px;
  background: transparent;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 12px;
  line-height: 1;
  font-weight: 700;
}

nav a:hover { color: var(--ink); opacity: 0.65; }

a { color: inherit; }

main {
  margin: 0 45px 70px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(360px, 520px) 1fr 230px;
  gap: 42px;
  align-items: start;
  padding: 28px 0 62px;
  min-height: 520px;
}

.hero-copy {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.intro-title {
  max-width: 480px;
}

.title-rule {
  height: 1px;
  background: var(--muted);
  margin-bottom: 12px;
}

h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(34px, 5.2vw, 78px);
  line-height: 1.18;
  font-weight: 400;
  font-style: italic;
}

h1 span,
.project-title span,
.paper-index h3 span,
.project-title-en {
  display: block;
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-style: normal;
}

h1 span {
  margin-top: 12px;
  color: var(--muted);
  font-size: clamp(14px, 1.45vw, 20px);
}

.channel-browser-hero h1,
.channel-page .channel-hero h1,
.hero .hero-copy h1 {
  font-size: clamp(24px, 2.6vw, 36px);
  line-height: 1.06;
  font-style: normal;
}

.channel-browser-hero h1 span,
.channel-page .channel-hero h1 span,
.hero .hero-copy h1 span {
  margin-top: 8px;
  font-size: clamp(12px, 0.95vw, 14px);
  line-height: 1.32;
}

.channel-browser-hero {
  grid-template-columns: minmax(280px, 1fr) minmax(360px, 1fr) 180px;
  gap: 40px;
}

.channel-browser-hero .intro-title {
  max-width: none;
}

.data-channel-hero {
  grid-template-columns: minmax(240px, 0.48fr) minmax(600px, 1.52fr) 160px;
  gap: 34px;
}

.intro-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.intro-columns p {
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.35;
}

.hero-stage {
  display: grid;
  grid-template-columns: repeat(5, minmax(96px, 1fr));
  grid-auto-rows: minmax(96px, 1fr);
  gap: 12px;
  overflow: hidden;
  padding-top: 1px;
}

.hero-tile {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  height: auto;
  overflow: hidden;
  background: var(--soft);
  border-top: 1px solid rgba(255,255,255,0.16);
}

.hero-tile img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: grayscale(1) contrast(1.08);
  opacity: 0.82;
  transition: opacity 120ms ease;
}

.hero-tile:hover img { opacity: 1; }

.hero-stage.hero-stage-mosaic {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  padding: 0;
  background: var(--soft);
  border-top: 1px solid rgba(255,255,255,0.24);
}

.hero-stage-mosaic > img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}

.hero-panel {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 18px;
  padding-top: 12px;
}

.metric {
  display: grid;
  gap: 4px;
}

.metric span {
  color: var(--ink);
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 22px;
  font-weight: 700;
}

.metric small {
  color: var(--dim);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.toolbar {
  display: grid;
  grid-template-columns: 230px 1fr auto;
  gap: 16px;
  align-items: end;
  margin: 20px 0 30px;
}

.toolbar::before {
  content: "Projects";
  color: var(--ink);
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  font-weight: 700;
}

.channel-toolbar::before { content: "Browse"; }

input[type="search"] {
  width: 210px;
  height: 26px;
  border: 0;
  border-bottom: 1px solid var(--dim);
  border-radius: 0;
  background: transparent;
  padding: 0 2px;
  color: var(--muted);
  font-size: 12px;
  outline: none;
}

input[type="search"]:focus {
  color: var(--ink);
  border-bottom-color: var(--muted);
}

.view-switch {
  display: flex;
  gap: 10px;
}

button {
  border: 0;
  background: transparent;
  color: var(--dim);
  padding: 0;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

button.active,
button:hover {
  color: var(--ink);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, 160px);
  gap: 42px 28px;
  align-items: start;
}

.project-card {
  width: 160px;
  min-height: 314px;
  position: relative;
  border-top: 1px solid rgba(255,255,255,0.16);
  padding-top: 10px;
  color: inherit;
  text-decoration: none;
  display: block;
}

.project-card header {
  display: contents;
}

.project-ghost { display: none; }

.project-no {
  position: absolute;
  left: 0;
  top: 178px;
  width: 100%;
  color: var(--dim);
  text-align: center;
  font-size: 10px;
  font-weight: 700;
}

.project-title {
  position: absolute;
  left: 0;
  top: 198px;
  width: 100%;
  margin: 0;
  color: var(--ink);
  text-align: center;
  font-size: 14px;
  line-height: 1.18;
  font-weight: 400;
  max-height: 72px;
  overflow: hidden;
}

.project-title span {
  margin-top: 3px;
  color: var(--dim);
  font-size: 10px;
  line-height: 1.12;
}

.project-meta {
  position: absolute;
  left: 0;
  top: 286px;
  width: 100%;
  display: grid;
  gap: 1px;
  color: var(--dim);
  text-align: center;
  font-size: 10px;
  font-weight: 700;
  line-height: 1.2;
}

.visuals {
  position: absolute;
  left: 0;
  top: 10px;
  width: 160px;
  height: 160px;
  overflow: hidden;
  background: var(--soft);
}

.visual-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.visuals > img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: grayscale(1) contrast(1.1);
  opacity: 0.78;
  transition: opacity 140ms ease, transform 140ms ease;
}

.project-card:hover .visuals > img {
  opacity: 1;
  transform: scale(1.03);
}

.visual-stack,
.representatives {
  display: none;
}

.project-card:hover .project-title { color: var(--muted); }
.project-card:hover { border-top-color: rgba(255,255,255,0.42); }

.list-mode {
  grid-template-columns: 1fr;
  gap: 1px;
  border-top: 1px solid #222;
}

.list-mode .project-card {
  width: 100%;
  min-height: 132px;
  display: grid;
  grid-template-columns: 120px 320px 1fr;
  gap: 24px;
  padding: 16px 0;
  border-bottom: 1px solid #222;
}

.list-mode .visuals,
.list-mode .project-no,
.list-mode .project-title,
.list-mode .project-meta {
  position: static;
}

.list-mode .visuals {
  width: 100px;
  height: 100px;
}

.list-mode .visuals > img {
  width: 100px;
  height: 100px;
}

.list-mode .project-no {
  text-align: left;
  align-self: start;
}

.list-mode .project-title {
  text-align: left;
  max-height: none;
  font-size: 19px;
  line-height: 1.2;
  align-self: center;
}

.list-mode .project-title span {
  font-size: 12px;
}

.list-mode .project-meta {
  text-align: left;
  align-self: center;
  font-size: 12px;
}

.list-mode .representatives {
  display: grid;
  grid-column: 3;
  gap: 6px;
  align-self: center;
}

.rep-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  color: var(--muted);
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 12px;
  line-height: 1.25;
}

.rep-item em,
.paper-index a {
  color: var(--ink);
  text-decoration: none;
  font-style: normal;
  font-weight: 700;
}

.paper-index a:hover {
  opacity: 0.5;
}

.paper-index a,
.channel-links a,
.paper-title,
.rich-content p,
.rich-content li {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.paper-index {
  margin-top: 82px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  columns: 3;
  column-gap: 44px;
}

.channel-card .project-title {
  font-size: 13px;
}

.channel-card .project-title span {
  max-height: 26px;
  overflow: hidden;
}

.paper-index h2 {
  column-span: all;
  margin: 0 0 24px;
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}

.paper-index h3 {
  break-after: avoid;
  margin: 0 0 10px;
  padding-top: 18px;
  color: var(--muted);
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 12px;
  line-height: 1.3;
  font-weight: 700;
}

.paper-index h3 span {
  margin-top: 3px;
  color: var(--dim);
  font-size: 11px;
}

.paper-index ol {
  break-inside: avoid;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.paper-index li {
  margin: 0 0 6px;
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 11px;
  line-height: 1.3;
}

.paper-index li::before {
  content: "›";
  margin-right: 6px;
  color: var(--dim);
}

.project-detail {
  max-width: none;
  position: relative;
}

.project-detail::before {
  content: none;
}

.back-link {
  display: inline-block;
  margin: 16px 0 32px;
  color: var(--muted);
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
}

.back-link:hover { color: var(--ink); opacity: 0.65; }

.detail-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(300px, 420px) minmax(0, 1fr) 210px;
  gap: 40px;
  align-items: start;
  margin-bottom: 56px;
  padding: 18px 0 38px;
  border-bottom: 1px solid var(--line);
}

.detail-hero::after {
  content: none;
}

.detail-image {
  width: 100%;
  max-width: 420px;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  filter: grayscale(1) contrast(1.08);
  background: #111;
  border-top: 1px solid rgba(255,255,255,0.28);
  padding-top: 10px;
}

.project-line-art {
  object-fit: contain;
  padding: 28px;
  background:
    linear-gradient(rgba(255,255,255,0.055) 1px, transparent 1px) 0 0 / 22px 22px,
    linear-gradient(90deg, rgba(255,255,255,0.055) 1px, transparent 1px) 0 0 / 22px 22px,
    #080808;
  border: 1px solid #1d1d1d;
  border-top-color: rgba(255,255,255,0.36);
}

.detail-title-block {
  border-top: 1px solid var(--muted);
  padding-top: 16px;
  min-height: 320px;
  display: grid;
  align-content: start;
}

.detail-title-block .project-no {
  position: static;
  width: auto;
  margin-bottom: 10px;
  text-align: left;
}

.detail-title-block h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(24px, 3.1vw, 42px);
  line-height: 1.08;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.detail-summary {
  max-width: 760px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.project-title-en {
  max-width: 720px;
  margin: 8px 0 0;
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 12px;
  line-height: 1.38;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.detail-meta {
  border-top: 1px solid var(--line);
  padding-top: 12px;
  display: grid;
  gap: 0;
  background:
    linear-gradient(90deg, transparent calc(100% - 1px), rgba(255,255,255,0.08) calc(100% - 1px)),
    #050505;
}

.detail-meta div {
  display: grid;
  gap: 3px;
  padding: 12px 0;
  border-bottom: 1px solid #1b1b1b;
}

.detail-meta span {
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.detail-meta strong {
  color: var(--ink);
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 18px;
  line-height: 1.2;
}

.paper-table {
  border-top: 1px solid var(--line);
  margin-top: 32px;
}

.paper-row {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr) 132px;
  gap: 24px;
  padding: 17px 0;
  border-bottom: 1px solid #202020;
  align-items: start;
  transition: background 140ms ease, padding-left 140ms ease;
}

.paper-row:hover {
  background: rgba(255,255,255,0.035);
  padding-left: 10px;
}

.paper-year,
.paper-download {
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 12px;
  font-weight: 700;
}

.paper-year { color: var(--dim); }

.paper-title {
  color: var(--muted);
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 13px;
  line-height: 1.38;
}

.paper-download {
  color: var(--ink);
  text-decoration: none;
}

.paper-download:hover { opacity: 0.5; }

.detail-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}

.detail-aside {
  position: sticky;
  top: 24px;
  display: grid;
  gap: 14px;
  padding-top: 0;
  color: var(--muted);
  min-height: 360px;
}

.detail-aside-rule {
  width: 100%;
  height: 1px;
  background: var(--line);
}

.detail-aside span,
.detail-section-heading span {
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.2;
  text-transform: uppercase;
}

.detail-aside strong {
  color: var(--ink);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 28px;
  line-height: 1.02;
  font-weight: 400;
}

.detail-aside p {
  margin: 0;
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 12px;
  line-height: 1.45;
}

.detail-aside nav {
  display: grid;
  gap: 0;
  margin-top: 10px;
  border-top: 1px solid var(--line);
}

.detail-aside nav a {
  display: block;
  padding: 11px 0;
  color: var(--muted);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
}

.detail-aside nav a:hover {
  color: var(--ink);
}

.detail-body {
  min-width: 0;
  max-width: 100%;
}

.detail-section-heading {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 28px;
  align-items: baseline;
  margin: 0 0 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.detail-section-heading h2 {
  margin: 0;
  color: var(--ink);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: clamp(18px, 1.8vw, 26px);
  line-height: 1.16;
  font-weight: 400;
}

.detail-body .paper-table,
.detail-body .rich-content,
.detail-body .media-showcase {
  margin-top: 0;
  border-top: 0;
  padding-top: 0;
}

.detail-body .media-showcase figure {
  border-top: 0;
  padding-top: 0;
}

.channel-page {
  max-width: none;
}

.channel-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 360px) 160px;
  gap: 40px;
  padding: 10px 0 40px;
  border-bottom: 1px solid var(--line);
}

.channel-hero p {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.45;
}

.channel-stat {
  border-top: 1px solid var(--muted);
  padding-top: 12px;
  display: grid;
  gap: 4px;
  align-self: start;
}

.channel-stat strong {
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 34px;
}

.channel-stat span {
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.updates-hero {
  grid-template-columns: minmax(0, 1fr) 160px;
}

.channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 34px 28px;
  margin-top: 34px;
}

.channel-item {
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.channel-item.text-card {
  min-height: 178px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.055), transparent 46%),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 18px);
  padding: 14px 0 0;
}

.channel-item img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  display: block;
  margin-bottom: 12px;
  filter: grayscale(1) contrast(1.05);
  background: #111;
}

.channel-item h2 {
  margin: 0 0 8px;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.2;
  font-weight: 400;
}

.channel-item p {
  margin: 0 0 10px;
  color: var(--muted);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 12px;
  line-height: 1.35;
}

.channel-links {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 12px;
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 11px;
  font-weight: 700;
}

.channel-links span {
  color: var(--dim);
}

.channel-links a {
  color: var(--ink);
  text-decoration: none;
}

.channel-links a:hover {
  opacity: 0.5;
}

.home-hero {
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: minmax(360px, 0.82fr) minmax(460px, 1.18fr);
  gap: 46px;
  align-items: stretch;
  padding: 38px 0 72px;
}

.home-atlas {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(210px, 0.24fr) minmax(720px, 1fr) 220px;
  gap: 22px;
  align-items: start;
  padding: 28px 0 12px;
}

.atlas-copy {
  display: grid;
  align-content: start;
  gap: 16px;
  padding-top: 0;
}

.atlas-copy h1 {
  font-size: clamp(30px, 3.2vw, 46px);
  line-height: 1.02;
}

.atlas-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.45;
}

.atlas-metrics {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.atlas-metrics a {
  color: inherit;
  text-decoration: none;
}

.atlas-metrics strong {
  display: block;
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 22px;
}

.atlas-metrics span,
.atlas-panel span,
.atlas-toolbar,
.atlas-axis-title {
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.atlas-stage {
  position: relative;
  min-height: 0;
  border-top: 1px solid rgba(255,255,255,0.2);
  padding-top: 10px;
  overflow: hidden;
}

.atlas-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  margin-bottom: 10px;
}

.atlas-toolbar div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid #222;
  padding-bottom: 8px;
}

.atlas-toolbar strong {
  color: var(--ink);
}

.atlas-chart {
  position: relative;
  height: auto;
  min-height: 0;
  overflow: hidden;
  cursor: default;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px) 0 0 / 42px 42px,
    #030303;
  border: 1px solid #1d1d1d;
}

.atlas-chart svg {
  min-width: 0;
  width: 100%;
  height: auto;
  display: block;
}

.atlas-bg {
  fill: transparent;
}

.atlas-year line {
  stroke: rgba(255,255,255,0.08);
}

.atlas-year text,
.atlas-lane text,
.atlas-axis-title {
  fill: #777;
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 10px;
}

.atlas-lane {
  cursor: pointer;
}

.atlas-lane line {
  stroke: rgba(255,255,255,0.16);
  stroke-width: 1;
}

.atlas-lane text {
  transition: fill 120ms ease;
}

.atlas-lane:hover text,
.atlas-lane.is-active text {
  fill: #fff;
}

.atlas-lane.is-muted {
  opacity: 0.22;
}

.atlas-lane.is-filtered {
  opacity: 0.08;
}

.atlas-dot {
  fill: #f4f4f4;
  stroke: #000;
  stroke-width: 0.8;
  cursor: pointer;
  transition: opacity 120ms ease, r 120ms ease, fill 120ms ease;
}

.atlas-dot:hover,
.atlas-dot.is-active:hover {
  fill: #fff;
  r: 6;
}

.atlas-dot.is-muted {
  opacity: 0.16;
}

.atlas-dot.is-filtered {
  opacity: 0.04;
}

.atlas-wall-chart {
  height: auto;
  min-height: 0;
}

.atlas-wall-title {
  fill: var(--ink);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 22px;
}

.atlas-wall-tile {
  cursor: pointer;
  transform-box: fill-box;
  transform-origin: center;
  transition: opacity 120ms ease, stroke 120ms ease, filter 120ms ease, transform 120ms ease;
}

.atlas-wall-tile:hover {
  filter: brightness(1.28);
  stroke: #fff;
  stroke-width: 1.5;
  transform: scale(1.42);
}

.atlas-wall-tile.is-selected {
  filter: brightness(1.2);
}

.atlas-legend text {
  fill: #aaa;
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 10px;
}

.atlas-tooltip {
  position: absolute;
  z-index: 4;
  max-width: 280px;
  padding: 10px 12px;
  background: rgba(0,0,0,0.92);
  border: 1px solid #555;
  pointer-events: none;
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
}

.atlas-tooltip strong {
  display: block;
  color: var(--ink);
  font-size: 12px;
  line-height: 1.3;
}

.atlas-tooltip span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 11px;
}

.atlas-panel {
  align-self: stretch;
  border-top: 1px solid var(--line);
  padding-top: 12px;
  display: grid;
  align-content: start;
  gap: 10px;
}

.atlas-panel strong {
  color: var(--ink);
  font-size: 21px;
  line-height: 1.18;
  font-weight: 400;
}

.atlas-panel p {
  margin: 0;
  color: var(--muted);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 12px;
  line-height: 1.45;
}

.atlas-panel a {
  color: var(--ink);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid var(--line);
  padding: 9px 10px;
  margin-top: 2px;
}

.atlas-panel a:hover {
  background: var(--ink);
  color: #000;
}

.home-kicker,
.section-heading p,
.home-metrics span,
.home-feature span,
.home-secondary span {
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.home-hero h1 {
  font-size: clamp(42px, 7vw, 96px);
}

.home-identity {
  display: grid;
  align-content: center;
  gap: 22px;
  min-height: 620px;
}

.home-kicker {
  border-top: 1px solid var(--muted);
  padding-top: 12px;
}

.home-identity p {
  max-width: 560px;
  margin: 0;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.45;
}

.home-visual-grid {
  grid-column: 2;
  grid-row: 1 / span 3;
  display: grid;
  grid-template-columns: repeat(5, minmax(70px, 1fr));
  gap: 12px;
  align-self: stretch;
  align-content: center;
}

.home-mosaic {
  display: grid;
  grid-template-columns: repeat(6, minmax(58px, 1fr));
  grid-template-rows: repeat(6, minmax(58px, 1fr));
  gap: 12px;
  min-height: 620px;
  align-self: stretch;
}

.mosaic-tile {
  position: relative;
  min-height: 120px;
  overflow: hidden;
  border-top: 1px solid rgba(255,255,255,0.22);
  background: #0d0d0d;
  color: inherit;
  text-decoration: none;
}

.mosaic-tile:nth-child(1) { grid-column: 1 / span 3; grid-row: 1 / span 3; }
.mosaic-tile:nth-child(2) { grid-column: 4 / span 2; grid-row: 1 / span 2; }
.mosaic-tile:nth-child(3) { grid-column: 6; grid-row: 1 / span 3; }
.mosaic-tile:nth-child(4) { grid-column: 1 / span 2; grid-row: 4 / span 3; }
.mosaic-tile:nth-child(5) { grid-column: 3 / span 2; grid-row: 4 / span 3; }
.mosaic-tile:nth-child(6) { grid-column: 5 / span 2; grid-row: 3 / span 2; }
.mosaic-tile:nth-child(7) { grid-column: 5 / span 2; grid-row: 5 / span 2; }

.mosaic-tile img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  filter: grayscale(1) contrast(1.14);
  opacity: 0.82;
  transition: opacity 160ms ease, transform 160ms ease;
}

.mosaic-tile span {
  position: absolute;
  left: 10px;
  bottom: 9px;
  max-width: calc(100% - 20px);
  color: var(--ink);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.15;
  text-transform: uppercase;
  text-shadow: 0 1px 12px #000;
}

.mosaic-tile:hover img {
  opacity: 1;
  transform: scale(1.025);
}

.home-metrics {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.home-metrics a {
  color: inherit;
  text-decoration: none;
}

.home-metrics strong {
  display: block;
  margin-bottom: 4px;
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 28px;
}

.home-section {
  margin-top: 36px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.home-atlas + .home-section {
  margin-top: 24px;
}

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
  border-top: 1px solid rgba(255,255,255,0.18);
  border-left: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.08);
}

.highlight-card {
  min-height: 176px;
  display: grid;
  align-content: space-between;
  gap: 18px;
  padding: 16px;
  background:
    linear-gradient(160deg, rgba(255,255,255,0.07), rgba(255,255,255,0.015) 52%, transparent),
    #050505;
}

.highlight-card.compact {
  min-height: 142px;
}

.highlight-card strong {
  display: block;
  color: var(--ink);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: clamp(22px, 2.4vw, 36px);
  line-height: 1;
  font-weight: 700;
}

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

.highlight-card .award-years {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 12px;
  font-size: clamp(20px, 1.8vw, 28px);
  line-height: 1.1;
}

.highlight-card .award-years b {
  font: inherit;
}

.highlight-card span {
  display: block;
  max-width: 18em;
  color: var(--muted);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 12px;
  line-height: 1.32;
  font-weight: 700;
}

.highlight-card em {
  display: block;
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 11px;
  line-height: 1.35;
  font-style: normal;
  font-weight: 700;
}

.mooc-section {
  margin-top: 20px;
}

.mooc-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.mooc-card {
  display: grid;
  grid-template-rows: minmax(240px, 1fr) auto;
  border-top: 1px solid rgba(255,255,255,0.22);
  color: inherit;
  text-decoration: none;
  background: #050505;
}

.mooc-card img {
  width: 100%;
  height: 100%;
  max-height: 360px;
  display: block;
  object-fit: contain;
  background: #101010;
  filter: grayscale(1) contrast(1.04);
  transition: filter 160ms ease, opacity 160ms ease;
}

.mooc-card > div {
  padding: 14px 0 0;
}

.mooc-card span,
.mooc-card strong {
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 11px;
  line-height: 1.35;
  font-weight: 700;
}

.mooc-card h3 {
  margin: 8px 0 14px;
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 20px;
  line-height: 1.18;
  font-weight: 400;
}

.mooc-card h3 small {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
}

.mooc-card:hover img {
  filter: grayscale(0) contrast(1.02);
  opacity: 0.88;
}

.channel-browser-hero {
  min-height: 0;
  padding-bottom: 16px;
}

.channel-browser-hero + .content-section,
.channel-browser-hero + .people-section {
  margin-top: 20px;
}

.taught-courses-section .channel-toolbar {
  margin-top: 0;
}

.textbook-heading,
.course-files-heading {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 28px;
  align-items: baseline;
  margin: 0 0 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.textbook-heading span,
.course-files-heading span {
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.textbook-heading h3,
.course-files-heading h3 {
  margin: 0;
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 20px;
  line-height: 1.2;
  font-weight: 400;
}

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

.textbook-card {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(120px, 0.78fr) minmax(0, 1fr);
  gap: 18px;
  padding-top: 12px;
  border-top: 1px solid var(--hairline);
}

.textbook-cover {
  display: block;
  align-self: start;
  background: var(--soft);
}

.textbook-cover img {
  width: 100%;
  aspect-ratio: 3 / 4;
  display: block;
  object-fit: contain;
  filter: grayscale(1) contrast(1.05);
  background: #111;
  transition: filter 160ms ease, opacity 160ms ease;
}

.textbook-card:hover .textbook-cover img {
  filter: grayscale(0) contrast(1.02);
  opacity: 0.9;
}

.textbook-copy {
  min-width: 0;
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
}

.textbook-copy > span,
.textbook-copy em {
  color: var(--dim);
  font-size: 10px;
  line-height: 1.35;
  font-style: normal;
  font-weight: 700;
  text-transform: uppercase;
}

.textbook-copy h3 {
  margin: 8px 0 14px;
  font-size: 18px;
  line-height: 1.18;
  font-weight: 400;
}

.textbook-copy h3 small {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.3;
}

.textbook-copy p {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.4;
}

.textbook-links {
  display: grid;
  gap: 7px;
  margin-top: 16px;
  padding-top: 10px;
  border-top: 1px solid var(--hairline);
}

.textbook-links a {
  color: var(--ink);
  font-size: 10px;
  line-height: 1.3;
  font-weight: 700;
  text-decoration: none;
}

.course-files-heading {
  margin-top: 44px;
}

.course-paper-index {
  margin-top: 0;
}

.course-paper-index > h2 {
  display: none;
}

.founder-bio {
  max-width: 980px;
  margin: 0 0 32px;
  padding: 22px 0 10px;
  border-top: 1px solid rgba(255,255,255,0.22);
  columns: 2;
  column-gap: 48px;
}

.founder-bio p {
  margin: 0 0 16px;
  color: var(--muted);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 15px;
  line-height: 1.55;
  break-inside: avoid;
}

.home-streams {
  margin-top: 72px;
}

.stream-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 30px;
}

.stream-grid section {
  border-top: 1px solid rgba(255,255,255,0.18);
  padding-top: 12px;
}

.stream-grid h3 {
  margin: 0 0 14px;
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 13px;
  text-transform: uppercase;
}

.stream-list {
  display: grid;
  gap: 1px;
}

.stream-list a {
  min-height: 72px;
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  padding: 12px 0;
  border-top: 1px solid #1b1b1b;
  color: inherit;
  text-decoration: none;
}

.stream-list a:hover {
  opacity: 0.68;
}

.stream-list span,
.stream-list em {
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 11px;
  font-style: normal;
  font-weight: 700;
  line-height: 1.25;
}

.stream-list strong {
  color: var(--muted);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 13px;
  line-height: 1.3;
  font-weight: 700;
}

.stream-list em {
  grid-column: 2;
  margin-top: -8px;
}

.recent-output-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid rgba(255,255,255,0.18);
}

.recent-output-list a {
  min-height: 96px;
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 16px 18px 16px 0;
  border-bottom: 1px solid #1b1b1b;
  color: inherit;
  text-decoration: none;
}

.recent-output-list a:nth-child(odd) {
  border-right: 1px solid #1b1b1b;
}

.recent-output-list a:nth-child(even) {
  padding-left: 18px;
}

.recent-output-list a:hover {
  background: rgba(255,255,255,0.035);
}

.recent-output-list span {
  color: var(--ink);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
}

.recent-output-list strong {
  min-width: 0;
  color: var(--muted);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 14px;
  line-height: 1.28;
  overflow-wrap: anywhere;
}

.recent-output-list em {
  grid-column: 2;
  margin-top: -8px;
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 11px;
  font-style: normal;
  font-weight: 700;
  line-height: 1.3;
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  margin-bottom: 28px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 54px);
  font-weight: 400;
  font-style: italic;
}

.section-heading p {
  margin: 0;
}

.home-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.home-feature {
  color: inherit;
  text-decoration: none;
  border-top: 1px solid rgba(255,255,255,0.18);
  padding-top: 12px;
}

.home-feature img {
  width: 100%;
  aspect-ratio: 1 / 1;
  display: block;
  object-fit: contain;
  margin-bottom: 14px;
  filter: grayscale(1) contrast(1.08);
  background: var(--soft);
}

.home-feature[href="updates.html"] img {
  filter: none;
  background: #fff;
}

.home-feature[href="data.html"] img {
  background: #030303;
}

.home-feature[href="members.html"] img {
  filter: none;
}

.home-feature[href="about.html"] img {
  filter: none;
}

.channel-hero-visual {
  margin: 0;
  max-width: 100%;
  min-height: 280px;
  align-self: stretch;
  overflow: hidden;
  border-top: 1px solid rgba(255,255,255,0.24);
  background: var(--soft);
}

.channel-hero-visual img {
  width: 100%;
  max-width: 100%;
  height: 100%;
  min-height: 280px;
  display: block;
  object-fit: contain;
  filter: grayscale(1) contrast(1.08);
  opacity: 0.86;
}

.channel-hero-visual img[src$="people.jpg"] {
  filter: none;
  opacity: 1;
}

.about-page .channel-hero-visual img,
.about-page .channel-item img,
.about-page .media-grid img,
.about-page .rich-content img,
.updates-page .channel-hero-visual img,
.updates-page .media-grid img,
.updates-page .rich-content img {
  filter: none;
  opacity: 1;
}

.updates-page .channel-hero-visual img,
.updates-page .media-grid img,
.updates-page .rich-content img {
  background: #fff;
}

.channel-hero-visual figcaption {
  padding-top: 8px;
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 11px;
  font-weight: 700;
}

.channel-hero-placeholder {
  position: relative;
  min-height: 280px;
  overflow: hidden;
  border-top: 1px solid rgba(255,255,255,0.24);
  background:
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px) 0 0 / 32px 32px,
    #050505;
}

.channel-hero-placeholder::before,
.channel-hero-placeholder::after {
  content: "";
  position: absolute;
  background: rgba(255,255,255,0.35);
}

.channel-hero-placeholder::before {
  left: 50%;
  top: 14%;
  bottom: 14%;
  width: 1px;
}

.channel-hero-placeholder::after {
  left: 14%;
  right: 14%;
  top: 50%;
  height: 1px;
}

.channel-hero-placeholder span {
  position: absolute;
  left: 14px;
  bottom: 12px;
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.channel-browser-hero .hero-stage,
.channel-browser-hero .channel-hero-visual,
.channel-browser-hero .channel-hero-placeholder {
  width: 100%;
  min-height: 0;
  aspect-ratio: 1 / 1;
}

.channel-browser-hero .channel-hero-visual img {
  height: 100%;
  min-height: 0;
}

.channel-browser-hero .channel-hero-visual figcaption {
  display: none;
}

.data-layers-hero {
  position: relative;
  width: 100%;
  min-height: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-top: 1px solid rgba(255,255,255,0.24);
  background: #030303;
}

.data-layers-hero > svg {
  width: 100%;
  height: 100%;
  display: block;
}

.data-layers-loading {
  position: absolute;
  left: 14px;
  bottom: 12px;
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 10px;
  font-weight: 700;
}

.data-layer-title,
.data-layer-count,
.data-layer-labels {
  fill: #777;
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 11px;
  font-weight: 700;
}

.data-layer-title {
  fill: #eee;
  font-size: 13px;
}

.data-layer-legend text {
  fill: #888;
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 10px;
  font-weight: 700;
}

.data-layer-context {
  fill: none;
  stroke: #4a4a4a;
  stroke-width: 1;
}

.data-layer-connectors {
  fill: none;
  stroke: #383838;
  stroke-width: 1;
  stroke-dasharray: 4 7;
}

.data-layer-node {
  cursor: pointer;
  transform-box: fill-box;
  transform-origin: center;
  transition: opacity 120ms ease, transform 120ms ease, filter 120ms ease;
}

.data-layer-node text {
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 10px;
  font-weight: 700;
  pointer-events: none;
}

.data-layer-node:hover,
.data-layer-node:focus,
.data-layer-node.is-active {
  outline: none;
  filter: brightness(1.4);
  transform: scale(1.5);
}

.data-layer-node.is-muted {
  opacity: 0.07;
}

.data-layers-tooltip {
  position: absolute;
  z-index: 4;
  left: 14px;
  right: 14px;
  bottom: 14px;
  padding: 11px 12px;
  border: 1px solid #555;
  background: rgba(0,0,0,0.94);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
}

.data-layers-tooltip small,
.data-layers-tooltip strong,
.data-layers-tooltip span,
.data-layers-tooltip a,
.data-layers-tooltip em {
  display: block;
}

.data-layers-tooltip small,
.data-layers-tooltip span {
  color: var(--dim);
  font-size: 10px;
  line-height: 1.3;
}

.data-layers-tooltip strong {
  margin: 5px 0;
  color: var(--ink);
  font-size: 12px;
  line-height: 1.28;
}

.data-layers-tooltip a {
  color: var(--ink);
  text-decoration: none;
}

.data-layers-tooltip em {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid #555;
  color: var(--ink);
  font-size: 10px;
  font-style: normal;
  font-weight: 700;
}

.home-feature h2 {
  margin: 8px 0;
  font-size: 22px;
  line-height: 1.15;
  font-weight: 400;
}

.home-feature p,
.home-secondary p {
  margin: 0;
  color: var(--muted);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 13px;
  line-height: 1.4;
}

.home-secondary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.home-atlas-hero {
  position: relative;
}

.home-atlas-hero::before {
  content: "";
  position: absolute;
  inset: 34px 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.34), transparent);
  opacity: 0.7;
}

.home-secondary a {
  color: inherit;
  text-decoration: none;
  border-top: 1px solid rgba(255,255,255,0.18);
  padding-top: 12px;
}

.home-secondary strong {
  display: block;
  margin: 8px 0;
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 20px;
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin: 42px 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.media-grid figure {
  margin: 0;
  border-top: 1px solid rgba(255,255,255,0.16);
  padding-top: 10px;
}

.media-grid img,
.media-grid video,
.rich-content img,
.rich-content video {
  width: 100%;
  max-width: 100%;
  display: block;
  filter: grayscale(1) contrast(1.04);
  background: var(--soft);
  aspect-ratio: 4 / 3;
  object-fit: contain;
}

.media-showcase {
  margin: 18px 0 48px;
  padding: 16px 0 0;
}

.content-detail .media-showcase {
  display: block;
  max-width: 1100px;
}

.content-detail .media-showcase figure {
  margin: 0 0 34px;
  padding: 14px 0 0;
  border-top: 1px solid var(--hairline);
}

.content-detail .media-showcase img,
.content-detail .media-showcase video {
  width: 100%;
  aspect-ratio: auto;
  max-height: 72vh;
  object-fit: contain;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px) 0 0 / 18px 18px,
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px) 0 0 / 18px 18px,
    var(--soft);
}

.media-showcase figure:first-child {
  grid-column: span 2;
}

.media-showcase figure:first-child img,
.media-showcase figure:first-child video {
  aspect-ratio: auto;
  min-height: 0;
}

.media-grid figcaption {
  margin-top: 8px;
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 11px;
  line-height: 1.3;
}

.rich-content {
  max-width: 980px;
  margin: 42px 0 46px;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 14px;
  line-height: 1.7;
}

.rich-content h2,
.rich-content h3 {
  margin: 26px 0 10px;
  color: var(--ink);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-weight: 700;
  font-style: normal;
  line-height: 1.22;
}

.rich-content h2 { font-size: 16px; }
.rich-content h3 { font-size: 14px; }

.rich-content p,
.rich-content ol,
.rich-content ul {
  margin: 0 0 14px;
}

.rich-content ol,
.rich-content ul {
  padding-left: 20px;
}

.rich-content a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.content-section {
  margin-top: 44px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.content-section > h2 {
  margin: 0 0 24px;
  color: var(--ink);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 15px;
  line-height: 1.2;
  font-weight: 700;
  font-style: normal;
}

.people-section {
  margin-top: 46px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.people-section h2 {
  margin: 0 0 18px;
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 20px;
  font-weight: 700;
  font-style: normal;
}

.people-section h3 {
  margin: 26px 0 16px;
  color: var(--muted);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 13px;
  text-transform: uppercase;
}

.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 22px;
}

.person-card {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 14px;
  border-top: 1px solid rgba(255,255,255,0.16);
  padding-top: 12px;
}

.person-card img {
  width: 86px;
  height: 86px;
  object-fit: contain;
  filter: none;
  background: var(--soft);
}

.person-card h4 {
  margin: 0 0 6px;
  color: var(--ink);
  font-size: 17px;
  line-height: 1.2;
  font-weight: 400;
}

.person-card p {
  margin: 0 0 6px;
  color: var(--muted);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 12px;
  line-height: 1.35;
}

.conference-block {
  margin-bottom: 38px;
  border-top: 1px solid rgba(255,255,255,0.16);
  padding-top: 14px;
}

.conference-block h3 {
  margin: 0 0 6px;
  font-size: 26px;
  font-weight: 400;
  line-height: 1.2;
}

.conference-block header p {
  margin: 0;
  color: var(--muted);
}

.site-footer {
  margin: 90px 45px 36px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 22px;
  align-items: center;
  color: var(--dim);
  font-family: Roboto, Helvetica, Arial, "PingFang SC", sans-serif;
  font-size: 11px;
  line-height: 1.35;
}

.footer-logo img {
  width: 160px;
  display: block;
  filter: grayscale(1) invert(1) brightness(1.6) contrast(1.2);
}

.footer-line {
  height: 1px;
  background: var(--line);
}

.footer-links {
  display: flex;
  gap: 14px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 700;
}

.site-footer p {
  grid-column: 1 / -1;
  margin: 0;
  max-width: 720px;
}

@media (max-width: 1180px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .data-channel-hero {
    grid-template-columns: 1fr;
  }

  .home-hero {
    grid-template-columns: 1fr;
  }

  .home-atlas {
    grid-template-columns: 1fr;
  }

  .atlas-stage {
    min-height: auto;
  }

  .atlas-panel {
    grid-template-columns: 1fr;
  }

  .home-visual-grid {
    grid-column: 1;
    grid-row: auto;
  }

  .home-identity {
    min-height: auto;
  }

  .home-mosaic {
    min-height: 520px;
  }

  .hero-stage {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }

  .intro-columns {
    max-width: 780px;
  }

  .hero-panel {
    grid-template-columns: repeat(3, 1fr);
  }

  .paper-index { columns: 2; }
  .detail-hero { grid-template-columns: minmax(220px, 320px) minmax(0, 1fr); }
  .detail-meta { grid-column: 1 / -1; grid-template-columns: repeat(3, 1fr); }
  .detail-image { max-width: 320px; }
  .detail-title-block { min-height: 0; }
  .detail-layout { grid-template-columns: 1fr; gap: 28px; }
  .detail-aside { position: static; }
  .detail-aside nav { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .channel-hero { grid-template-columns: 1fr; }
  .home-feature-grid,
  .highlight-grid,
  .mooc-grid,
  .textbook-grid,
  .home-secondary,
  .home-metrics,
  .stream-grid,
  .recent-output-list {
    grid-template-columns: 1fr;
  }

  .about-page .highlight-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .recent-output-list a,
  .recent-output-list a:nth-child(even) {
    padding-left: 0;
    padding-right: 0;
    border-right: 0;
  }
}

@media (max-width: 720px) {
  .site-header {
    margin: 0 20px;
    height: auto;
    min-height: 0;
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 14px 0 10px;
  }

  .header-rule { display: none; }
  nav {
    display: grid;
    grid-template-columns: repeat(3, max-content);
    justify-content: space-between;
    gap: 0;
    border-top: 1px solid var(--line);
  }
  nav a {
    min-width: 0;
    min-height: 32px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--hairline);
    font-size: 10px;
    line-height: 1.15;
  }
  main { margin: 0 20px 50px; }
  .hero,
  .detail-hero,
  .detail-layout,
  .channel-hero,
  .hero-copy,
  .detail-title-block {
    min-width: 0;
    max-width: 100%;
  }
  .intro-columns { grid-template-columns: 1fr; }
  .toolbar { grid-template-columns: 1fr; }
  .toolbar::before { margin-bottom: 6px; }
  .toolbar input[type="search"] { width: 100%; }
  .project-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 160px));
    gap: 32px 16px;
    justify-content: space-between;
  }
  .project-card { width: 100%; min-height: 292px; }
  .visuals { width: 100%; height: auto; aspect-ratio: 1 / 1; }
  .project-no { top: 158px; }
  .project-title { top: 176px; }
  .project-meta { top: 260px; }
  .list-mode .project-card { grid-template-columns: 100px 1fr; }
  .list-mode .representatives { grid-column: 1 / -1; }
  .paper-index { columns: 1; }
  .detail-hero { grid-template-columns: 1fr; }
  .detail-image {
    width: 100%;
    max-width: 100%;
    min-width: 0;
  }
  .project-line-art {
    padding: 18px;
  }
  .detail-aside nav { grid-template-columns: 1fr; }
  .detail-section-heading {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .paper-row { grid-template-columns: 54px minmax(0, 1fr); }
  .paper-download { grid-column: 2; }
  .channel-grid { grid-template-columns: 1fr; }
  .highlight-grid { grid-template-columns: 1fr; }
  .about-page .highlight-grid { grid-template-columns: 1fr; }
  .mooc-grid { grid-template-columns: 1fr; }
  .founder-bio { columns: 1; }
  .textbook-heading,
  .course-files-heading {
    grid-template-columns: 1fr;
    gap: 7px;
  }
  .textbook-card {
    grid-template-columns: 1fr;
  }
  .textbook-cover img {
    max-height: 420px;
  }
  .section-heading {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 4px;
    margin-bottom: 20px;
  }
  .home-section { margin-top: 44px; }
  .hero {
    gap: 20px;
    padding-top: 16px;
    padding-bottom: 28px;
  }
  .channel-browser-hero .hero-copy { min-height: 0; }
  .channel-browser-hero { padding-bottom: 10px; }
  .channel-hero-visual,
  .channel-hero-visual img {
    min-height: 0;
  }
  .channel-hero-visual img {
    height: auto;
  }
  .hero-panel {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }
  .hero-panel .metric span {
    font-size: 18px;
    line-height: 1;
    white-space: nowrap;
  }
  .channel-stat strong { font-size: 28px; }
  .brand-logo img { width: 168px; }
  .home-visual-grid { grid-template-columns: repeat(2, 1fr); }
  .home-hero {
    padding-top: 20px;
  }

  .home-atlas {
    min-height: 0;
    gap: 16px;
    padding-top: 14px;
    padding-bottom: 0;
  }

  .atlas-copy {
    gap: 10px;
  }

  .atlas-copy h1 {
    font-size: 28px;
  }

  .atlas-copy p {
    font-size: 14px;
    line-height: 1.35;
  }

  .atlas-metrics {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 6px;
    padding-top: 10px;
  }

  .atlas-metrics strong {
    font-size: 18px;
    line-height: 1;
  }

  .atlas-metrics span {
    display: block;
    margin-top: 4px;
    font-size: 8px;
    line-height: 1.2;
    overflow-wrap: anywhere;
  }

  .atlas-toolbar {
    grid-template-columns: 1fr;
  }

  .atlas-chart,
  .atlas-wall-chart {
    height: auto;
    min-height: 0;
  }

  .atlas-panel a {
    min-height: 44px;
    display: flex;
    align-items: center;
    box-sizing: border-box;
  }

  .data-layers-tooltip a {
    min-height: 44px;
    display: block;
    box-sizing: border-box;
  }

  .back-link {
    margin: 12px 0 20px;
  }

  .detail-hero {
    gap: 20px;
    margin-bottom: 32px;
    padding: 12px 0 24px;
  }

  .detail-summary {
    margin-top: 14px;
    font-size: 15px;
  }

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

  .detail-meta div {
    padding: 9px 0;
  }
  .home-identity p {
    font-size: 16px;
  }
  .home-mosaic {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: none;
    min-height: auto;
  }
  .mosaic-tile,
  .mosaic-tile:nth-child(n) {
    grid-column: auto;
    grid-row: auto;
    aspect-ratio: 1 / 1;
  }
  .mosaic-tile.wide {
    grid-column: span 2;
    aspect-ratio: 2 / 1;
  }
  .stream-list a {
    grid-template-columns: 76px minmax(0, 1fr);
  }
  .media-grid { grid-template-columns: 1fr; }
  .person-card { grid-template-columns: 72px minmax(0, 1fr); }
  .person-card img { width: 72px; height: 72px; }
  .site-footer {
    margin: 64px 20px 28px;
    grid-template-columns: 1fr;
  }
  .footer-links { flex-wrap: wrap; }
}