:root {
  color-scheme: light;
  --navy-950: #07111d;
  --navy-900: #0b1827;
  --navy-800: #10243a;
  --navy-700: #173650;
  --teal-500: #5e8f8e;
  --teal-300: #8eb9b5;
  --violet-500: #7a7899;
  --steel-500: #60728a;
  --ink: #0d1c2d;
  --ink-soft: #435264;
  --paper: #f7f9fb;
  --white: #ffffff;
  --muted: #eaf0f2;
  --line: #cfd9df;
  --line-dark: #263c50;
  --focus: #9bd0cc;
  --shell: 1180px;
  --header-height: 82px;
  font-family: "Segoe UI Variable", "Segoe UI", "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 116px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-size: 1rem;
  line-height: 1.65;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

body.is-menu-open {
  overflow: hidden;
}

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

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

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

button,
input {
  font: inherit;
  letter-spacing: 0;
}

button {
  color: inherit;
}

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

.skip-link {
  position: fixed;
  z-index: 200;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  color: var(--navy-950);
  background: var(--white);
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

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

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

.site-header {
  position: absolute;
  z-index: 50;
  top: 0;
  right: 0;
  left: 0;
  color: var(--white);
}

.site-header.is-fixed {
  position: fixed;
  background: rgba(7, 17, 29, 0.96);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
}

.site-header.is-fixed .announcement {
  display: none;
}

.announcement {
  min-height: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  background: var(--navy-800);
  font-size: 0.8125rem;
}

.announcement-inner {
  display: flex;
  min-height: 36px;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.announcement a {
  color: var(--teal-300);
  border-bottom: 1px solid currentColor;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal-300);
}

.nav {
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: flex;
  width: 172px;
  height: 58px;
  align-items: center;
  flex: 0 0 auto;
  overflow: hidden;
}

.brand img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.nav-panel,
.nav-links,
.nav-actions {
  display: flex;
  align-items: center;
}

.nav-panel {
  flex: 1;
  justify-content: space-between;
  gap: 28px;
}

.nav-links {
  gap: 26px;
  margin-left: auto;
}

.nav-links a {
  position: relative;
  padding-block: 9px;
  color: #dce5ec;
  font-size: 0.9375rem;
  font-weight: 600;
}

.nav-links a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 1px;
  background: var(--teal-300);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 160ms ease;
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  transform: scaleX(1);
}

.nav-actions {
  gap: 14px;
}

.language-switch {
  display: inline-flex;
  padding: 2px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 4px;
}

.language-option {
  min-width: 38px;
  min-height: 32px;
  padding: 4px 8px;
  border: 0;
  background: transparent;
  color: #b7c4cf;
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 700;
}

.language-option.is-active {
  color: var(--navy-950);
  background: var(--white);
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 750;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

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

.button-small {
  min-height: 40px;
  padding: 8px 14px;
  font-size: 0.875rem;
}

.button-primary {
  color: var(--navy-950);
  background: var(--teal-300);
  border-color: var(--teal-300);
}

.button-primary:hover {
  background: var(--white);
  border-color: var(--white);
}

.button-light {
  color: var(--navy-950);
  background: var(--white);
}

.button-light:hover {
  background: var(--teal-300);
}

.icon-button {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  padding: 0;
  border: 1px solid currentColor;
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
}

.menu-toggle {
  display: none;
  border-color: rgba(255, 255, 255, 0.24);
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 1px;
  margin: 2px auto;
  background: currentColor;
}

.hero {
  position: relative;
  display: flex;
  min-height: 760px;
  height: calc(100vh - 18px);
  max-height: 940px;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background-color: var(--navy-950);
  background-image: url("./assets/hero-star-network-static.png");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 96px;
}

.eyebrow,
.section-label,
.program-meta,
.detail-index,
.detail-kicker,
.roadmap-year span {
  margin: 0;
  color: var(--teal-500);
  font-family: "Cascadia Mono", "Segoe UI Mono", Consolas, monospace;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
}

.eyebrow {
  color: var(--teal-300);
}

.hero h1 {
  max-width: 850px;
  margin: 18px 0 20px;
  font-size: 4.5rem;
  line-height: 1.08;
  font-weight: 760;
}

.hero-lead {
  max-width: 760px;
  margin: 0;
  color: #c9d5dd;
  font-size: 1.25rem;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-top: 32px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
  border: 0;
  border-bottom: 1px solid currentColor;
  background: transparent;
  cursor: pointer;
  color: var(--ink);
  font-weight: 700;
}

.text-link-light {
  color: var(--white);
}

.hero-signals {
  display: grid;
  max-width: 840px;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 62px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-signals div {
  display: flex;
  min-height: 66px;
  align-items: center;
  gap: 12px;
  border-right: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-signals div:last-child {
  border-right: 0;
}

.hero-signals strong {
  color: var(--teal-300);
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 0.75rem;
}

.hero-signals span {
  color: #dce5ec;
  font-size: 0.9375rem;
  font-weight: 650;
}

.scroll-cue {
  position: absolute;
  z-index: 2;
  right: 42px;
  bottom: 34px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: #aebdca;
  font-size: 0.8125rem;
  writing-mode: vertical-rl;
}

.section {
  padding: 110px 0;
}

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

.section-dark {
  color: var(--white);
  background: var(--navy-900);
}

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

.section-intro {
  max-width: 920px;
}

.section-intro h2,
.section-heading-row h2,
.architecture-copy h2,
.join h2 {
  margin: 14px 0 24px;
  font-size: 3rem;
  line-height: 1.2;
  font-weight: 740;
}

.section-copy,
.section-side-copy,
.architecture-copy > p,
.join-copy > p {
  color: var(--ink-soft);
  font-size: 1.125rem;
  line-height: 1.85;
}

.section-copy {
  max-width: 900px;
}

.section-heading-row {
  display: grid;
  align-items: end;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  gap: 70px;
  margin-bottom: 54px;
}

.section-heading-row h2 {
  margin-bottom: 0;
}

.section-side-copy {
  margin: 0;
  color: #b9c7d1;
  font-size: 1rem;
}

.section-side-copy-dark {
  color: var(--ink-soft);
}

.section-label-dark {
  color: var(--teal-300);
}

.strategy-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 70px;
  border-top: 1px solid var(--line);
}

.strategy-item {
  min-height: 250px;
  padding: 30px 28px 22px 0;
  border-right: 1px solid var(--line);
}

.strategy-item:not(:first-child) {
  padding-left: 28px;
}

.strategy-item:last-child {
  border-right: 0;
}

.strategy-index {
  color: var(--teal-500);
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 0.75rem;
}

.strategy-item h3 {
  margin: 38px 0 14px;
  font-size: 1.6rem;
}

.strategy-item p {
  margin: 0;
  color: var(--ink-soft);
}

.capability-explorer {
  display: grid;
  grid-template-columns: minmax(520px, 1.2fr) minmax(300px, 0.8fr);
  gap: 58px;
  align-items: center;
}

.capability-map {
  position: relative;
  min-width: 0;
  aspect-ratio: 1.28;
  min-height: 500px;
}

.capability-lines {
  position: absolute;
  z-index: 0;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.capability-lines path {
  fill: none;
  stroke: #506a7d;
  stroke-width: 0.25;
  stroke-dasharray: 2 2;
}

.capability-node,
.testbed-core {
  position: absolute;
  z-index: 2;
  display: flex;
  width: 178px;
  min-height: 92px;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 16px;
  border: 1px solid #355167;
  border-radius: 6px;
  color: #c4d0d9;
  background: var(--navy-950);
  text-align: left;
}

.capability-node {
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease, transform 160ms ease;
}

.capability-node:hover,
.capability-node.is-active {
  color: var(--white);
  background: var(--navy-800);
  border-color: var(--teal-300);
  transform: translateY(-2px);
}

.node-code {
  margin-bottom: 5px;
  color: var(--teal-300);
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 0.875rem;
  font-weight: 750;
}

.node-aos { top: 4%; left: 2%; }
.node-ase { top: 4%; right: 2%; }
.node-asg { bottom: 10%; left: 0; }
.node-token { right: 0; bottom: 10%; }
.node-market { bottom: 0; left: 50%; transform: translateX(-50%); }
.node-market:hover,
.node-market.is-active { transform: translateX(-50%) translateY(-2px); }

.testbed-core {
  top: 48%;
  left: 50%;
  width: 150px;
  min-height: 112px;
  align-items: center;
  padding: 20px;
  border-color: var(--violet-500);
  color: var(--white);
  background: #1d2740;
  transform: translate(-50%, -50%);
  font-family: "Cascadia Mono", Consolas, monospace;
  font-weight: 800;
}

.capability-detail {
  min-height: 440px;
  padding: 34px 0 34px 40px;
  border-left: 1px solid var(--line-dark);
}

.detail-index,
.detail-kicker {
  color: var(--teal-300);
}

.detail-kicker {
  margin-top: 56px;
}

.capability-detail h3 {
  margin: 14px 0 20px;
  font-size: 2rem;
  line-height: 1.25;
}

.capability-detail p:not(.detail-index):not(.detail-kicker) {
  color: #bfccd5;
  font-size: 1.0625rem;
}

.capability-detail ul {
  display: grid;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.capability-detail li {
  position: relative;
  padding-left: 22px;
  color: #dbe4ea;
}

.capability-detail li::before {
  position: absolute;
  top: 0.75em;
  left: 0;
  width: 8px;
  height: 1px;
  background: var(--teal-300);
  content: "";
}

.program-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.program-card {
  display: flex;
  min-height: 285px;
  flex-direction: column;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
}

.program-card:nth-child(3n + 2) {
  border-top: 3px solid var(--teal-500);
}

.program-card:nth-child(3n) {
  border-top: 3px solid var(--violet-500);
}

.program-featured {
  color: var(--white);
  background: var(--navy-800);
  border-color: var(--navy-800);
}

.program-meta {
  display: flex;
  justify-content: space-between;
  color: var(--teal-500);
}

.program-featured .program-meta {
  color: var(--teal-300);
}

.program-card h3 {
  margin: 42px 0 14px;
  font-size: 1.4rem;
  line-height: 1.35;
}

.program-card p {
  margin: 0;
  color: var(--ink-soft);
}

.program-featured p {
  color: #c7d2da;
}

.program-card a {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 18px;
  color: var(--teal-300);
  border-bottom: 1px solid currentColor;
  font-weight: 700;
}

.architecture {
  padding: 0;
  background: var(--white);
}

.architecture-layout {
  display: grid;
  min-height: 720px;
  grid-template-columns: minmax(320px, 0.65fr) minmax(560px, 1.35fr);
  align-items: stretch;
}

.architecture-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 90px 70px 90px 0;
}

.architecture-copy h2 {
  font-size: 2.55rem;
}

.architecture-principles {
  display: grid;
  gap: 0;
  margin: 28px 0 34px;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.architecture-principles li {
  display: flex;
  min-height: 54px;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--line);
}

.architecture-principles span {
  color: var(--teal-500);
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 0.75rem;
}

.architecture-open {
  align-self: flex-start;
}

.architecture-figure {
  position: relative;
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: center;
  margin: 0;
  overflow: hidden;
  background: #f1f4f5;
}

.architecture-figure img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.architecture-image-en {
  display: none;
}

body[data-lang="en"] .architecture-image-zh {
  display: none;
}

body[data-lang="en"] .architecture-image-en {
  display: block;
}

.architecture-figure figcaption {
  position: absolute;
  right: 18px;
  bottom: 14px;
  padding: 6px 9px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.9);
  font-size: 0.75rem;
}

.workgroup-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 60px;
  border-top: 1px solid #bdcbd1;
}

.workgroup-list article {
  display: grid;
  min-height: 178px;
  grid-template-columns: 86px 1fr;
  gap: 18px;
  padding: 30px 34px 28px 0;
  border-bottom: 1px solid #bdcbd1;
}

.workgroup-list article:nth-child(odd) {
  border-right: 1px solid #bdcbd1;
}

.workgroup-list article:nth-child(even) {
  padding-left: 34px;
}

.workgroup-list article > span {
  color: var(--violet-500);
  font-family: "Cascadia Mono", Consolas, monospace;
  font-weight: 800;
}

.workgroup-list h3 {
  margin: 0 0 10px;
  font-size: 1.25rem;
}

.workgroup-list p {
  margin: 0;
  color: var(--ink-soft);
}

.participation-table {
  border-top: 1px solid var(--ink);
}

.participation-row {
  display: grid;
  min-height: 78px;
  grid-template-columns: minmax(240px, 0.85fr) minmax(0, 1.6fr);
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.participation-row > * {
  padding: 16px 22px 16px 0;
}

.participation-row > :last-child {
  padding-left: 30px;
  border-left: 1px solid var(--line);
  color: var(--ink-soft);
}

.participation-head {
  min-height: 48px;
  color: var(--teal-500);
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 0.8125rem;
  font-weight: 800;
  text-transform: uppercase;
}

.governance-map {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line-dark);
}

.governance-map article {
  min-height: 260px;
  padding: 30px 24px;
  border-right: 1px solid var(--line-dark);
}

.governance-map article:last-of-type {
  border-right: 0;
}

.governance-map article > span {
  color: var(--teal-300);
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 0.8125rem;
  font-weight: 800;
}

.governance-map h3 {
  margin: 48px 0 14px;
  font-size: 1.25rem;
}

.governance-map p {
  margin: 0;
  color: #b8c6d0;
}

.governance-base {
  display: flex;
  min-height: 92px;
  grid-column: 1 / -1;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 28px;
  border-top: 1px solid var(--teal-500);
  background: var(--navy-800);
}

.governance-base span {
  color: #b9c7d1;
}

.roadmap-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 68px;
  border-top: 2px solid var(--navy-800);
}

.roadmap-track article {
  position: relative;
  min-height: 320px;
  padding: 32px 34px 20px 0;
  border-right: 1px solid var(--line);
}

.roadmap-track article:not(:first-child) {
  padding-left: 34px;
}

.roadmap-track article:last-child {
  border-right: 0;
}

.roadmap-track article::before {
  position: absolute;
  top: -8px;
  left: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--teal-500);
  box-shadow: 0 0 0 5px var(--paper);
  content: "";
}

.roadmap-track article:not(:first-child)::before {
  left: 34px;
}

.roadmap-year {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.roadmap-year strong {
  font-size: 0.875rem;
}

.roadmap-track h3 {
  margin: 58px 0 16px;
  font-size: 1.6rem;
}

.roadmap-track p {
  margin: 0;
  color: var(--ink-soft);
}

.join {
  position: relative;
  min-height: 600px;
  overflow: hidden;
  color: var(--white);
  background-color: var(--navy-950);
  background-image: url("./assets/hero-star-network-static.png");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.join-layout {
  position: relative;
  z-index: 2;
  display: grid;
  min-height: 600px;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  align-items: center;
  gap: 100px;
  padding-block: 90px;
}

.join h2 {
  max-width: 760px;
  font-size: 3.15rem;
}

.join-copy > p {
  max-width: 720px;
  color: #bccad4;
}

.join-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 32px;
}

.join-qr {
  display: flex;
  align-items: center;
  gap: 20px;
}

.qr-frame {
  flex: 0 0 auto;
  width: 132px;
  padding: 10px;
  border-radius: 6px;
  background: var(--white);
}

.join-qr strong,
.join-qr span {
  display: block;
}

.join-qr span {
  margin-top: 8px;
  color: #9fb1bf;
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 0.8125rem;
}

.site-footer {
  padding: 72px 0 24px;
  color: var(--white);
  background: #040a12;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 100px;
}

.footer-brand img {
  width: 260px;
}

.footer-brand p {
  max-width: 520px;
  margin-top: 24px;
  color: #9fb0bd;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 50px;
}

.footer-links div {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links strong {
  margin-bottom: 10px;
  color: var(--teal-300);
}

.footer-links a {
  color: #b8c6d0;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  margin-top: 62px;
  padding-top: 20px;
  border-top: 1px solid #1d2a35;
  color: #7f909d;
  font-size: 0.8125rem;
}

.architecture-dialog {
  width: min(96vw, 1500px);
  max-width: none;
  height: min(92vh, 980px);
  padding: 0;
  border: 1px solid var(--line-dark);
  border-radius: 6px;
  color: var(--white);
  background: var(--navy-950);
}

.architecture-dialog::backdrop {
  background: rgba(3, 8, 14, 0.88);
}

.dialog-toolbar {
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px 10px 22px;
  border-bottom: 1px solid var(--line-dark);
}

.dialog-close {
  font-size: 1.6rem;
  line-height: 1;
}

.dialog-image-wrap {
  height: calc(100% - 64px);
  padding: 18px;
  overflow: auto;
  background: #eef2f3;
}

.dialog-image-wrap img {
  width: 100%;
  min-width: 1000px;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 560ms ease, transform 560ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1060px) {
  .nav-links {
    gap: 16px;
  }

  .nav-links a {
    font-size: 0.875rem;
  }

  .hero h1 {
    font-size: 3.75rem;
  }

  .strategy-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .strategy-item:nth-child(2) {
    border-right: 0;
  }

  .strategy-item:nth-child(3),
  .strategy-item:nth-child(4) {
    border-top: 1px solid var(--line);
  }

  .capability-explorer {
    grid-template-columns: 1fr;
  }

  .capability-map {
    max-width: 720px;
    width: 100%;
    margin: 0 auto;
  }

  .capability-detail {
    min-height: 0;
    padding: 32px 0 0;
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }

  .detail-kicker {
    margin-top: 26px;
  }

  .program-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .architecture-copy {
    padding-right: 0;
  }

  .architecture-figure {
    min-height: 520px;
  }

  .governance-map {
    grid-template-columns: repeat(2, 1fr);
  }

  .governance-map article:nth-child(2) {
    border-right: 0;
  }

  .governance-map article:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line-dark);
  }
}

@media (max-width: 860px) {
  :root {
    --header-height: 70px;
  }

  .shell {
    width: min(calc(100% - 32px), var(--shell));
  }

  .announcement-inner {
    justify-content: flex-start;
    overflow: hidden;
    white-space: nowrap;
  }

  .announcement-inner > span:nth-child(2) {
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .brand {
    width: 142px;
    height: 50px;
  }

  .menu-toggle {
    display: block;
  }

  .nav-panel {
    position: fixed;
    z-index: 60;
    top: var(--header-height);
    right: 0;
    bottom: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 32px;
    padding: 30px 24px;
    background: var(--navy-950);
  }

  .site-header:not(.is-fixed) .nav-panel {
    top: calc(var(--header-height) + 36px);
  }

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

  .nav-links,
  .nav-actions {
    align-items: stretch;
  }

  .nav-links {
    flex-direction: column;
    gap: 2px;
    margin: 0;
  }

  .nav-links a {
    padding: 14px 0;
    border-bottom: 1px solid var(--line-dark);
    font-size: 1.1rem;
  }

  .nav-actions {
    justify-content: space-between;
  }

  .hero {
    min-height: 760px;
    height: auto;
    max-height: none;
    padding: 132px 0 48px;
  }

  .hero-content {
    padding-top: 0;
  }

  .hero h1 {
    font-size: 3rem;
  }

  .hero-lead {
    font-size: 1.0625rem;
  }

  .hero-signals {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-signals div:nth-child(2) {
    border-right: 0;
  }

  .hero-signals div:nth-child(-n + 2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  }

  .scroll-cue {
    display: none;
  }

  .section {
    padding: 82px 0;
  }

  .section-intro h2,
  .section-heading-row h2,
  .architecture-copy h2,
  .join h2 {
    font-size: 2.35rem;
  }

  .section-heading-row {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .program-grid,
  .workgroup-list,
  .roadmap-track,
  .footer-grid,
  .join-layout {
    grid-template-columns: 1fr;
  }

  .workgroup-list article:nth-child(odd) {
    border-right: 0;
  }

  .workgroup-list article:nth-child(even) {
    padding-left: 0;
  }

  .roadmap-track {
    border-top: 0;
    border-left: 2px solid var(--navy-800);
  }

  .roadmap-track article,
  .roadmap-track article:not(:first-child) {
    min-height: 0;
    padding: 4px 0 52px 34px;
    border-right: 0;
  }

  .roadmap-track article::before,
  .roadmap-track article:not(:first-child)::before {
    top: 0;
    left: -8px;
  }

  .roadmap-track h3 {
    margin-top: 30px;
  }

  .join-layout {
    gap: 50px;
  }

  .footer-grid {
    gap: 50px;
  }
}

@media (max-width: 620px) {
  .announcement {
    font-size: 0.75rem;
  }

  .announcement a {
    display: none;
  }

  .hero {
    min-height: 680px;
    padding-bottom: 24px;
  }

  .hero h1 {
    margin: 14px 0 16px;
    font-size: 2.25rem;
    line-height: 1.06;
  }

  .hero-lead {
    font-size: 1rem;
    line-height: 1.55;
  }

  .hero-actions {
    gap: 12px;
    margin-top: 24px;
  }

  .hero-signals {
    margin-top: 30px;
  }

  .hero-signals div {
    min-height: 50px;
  }

  .hero-actions,
  .join-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .strategy-grid,
  .program-grid,
  .governance-map {
    grid-template-columns: 1fr;
  }

  .strategy-item,
  .strategy-item:not(:first-child) {
    min-height: 0;
    padding: 26px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .strategy-item:nth-child(3),
  .strategy-item:nth-child(4) {
    border-top: 0;
  }

  .strategy-item h3 {
    margin-top: 18px;
  }

  .capability-map {
    display: grid;
    min-height: 0;
    aspect-ratio: auto;
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .capability-node {
    position: static;
    width: 100%;
    min-height: 72px;
    transform: none;
  }

  .capability-node:hover,
  .capability-node.is-active,
  .node-market:hover,
  .node-market.is-active {
    transform: none;
  }

  .testbed-core,
  .capability-lines {
    display: none;
  }

  .program-card {
    min-height: 250px;
  }

  .architecture-copy {
    padding-block: 74px;
  }

  .architecture-figure {
    min-height: 320px;
  }

  .workgroup-list article {
    min-height: 0;
    grid-template-columns: 58px 1fr;
    padding: 26px 0;
  }

  .participation-row,
  .participation-head {
    grid-template-columns: 1fr;
  }

  .participation-head {
    display: none;
  }

  .participation-row {
    padding: 20px 0;
  }

  .participation-row > *,
  .participation-row > :last-child {
    padding: 4px 0;
    border-left: 0;
  }

  .governance-map article,
  .governance-map article:nth-child(-n + 2) {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line-dark);
  }

  .governance-map h3 {
    margin-top: 26px;
  }

  .governance-base {
    align-items: flex-start;
    flex-direction: column;
  }

  .join h2 {
    font-size: 2.25rem;
  }

  .join-qr {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    gap: 30px;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}