:root {
  --brand-blue: #074b87;
  --brand-blue-bright: #1b78bc;
  --brand-red: #b71b2d;
  --brand-red-bright: #d43845;
  --night: #06111a;
  --night-raised: #0d1d29;
  --night-soft: #132a3a;
  --paper: #f3f6f8;
  --paper-raised: #ffffff;
  --ink: #0a1720;
  --muted: #556772;
  --muted-dark: #a9c1d0;
  --line: #cfdae0;
  --line-dark: rgba(187, 219, 237, 0.2);
  --container: 1200px;
  --gutter: clamp(1.2rem, 4vw, 3rem);
  --section-space: clamp(5.5rem, 10vw, 9rem);
  --radius: 14px;
  --shadow: 0 22px 55px rgba(6, 17, 26, 0.18);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: "Alibaba PuHuiTi", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

img {
  height: auto;
}

button,
a {
  font: inherit;
}

button {
  color: inherit;
}

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

p,
h1,
h2,
h3,
h4,
figure {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  line-height: 1.12;
  text-wrap: balance;
}

p {
  max-width: 72ch;
}

::selection {
  background: var(--brand-red);
  color: #fff;
}

:focus-visible {
  outline: 3px solid #ffcf5a;
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 1rem;
  transform: translateY(-160%);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  font-weight: 700;
  transition: transform 180ms var(--ease-out);
}

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

.container {
  width: min(calc(100% - (var(--gutter) * 2)), var(--container));
  margin-inline: auto;
}

.section {
  position: relative;
  padding-block: var(--section-space);
}

.theme-night {
  background: var(--night);
  color: #f7fbfe;
}

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

.theme-white {
  background: var(--paper-raised);
  color: var(--ink);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1.25rem;
  color: var(--brand-blue);
  font-family: Helvetica, "Helvetica Neue", Arial, sans-serif;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section-label::before {
  width: 2.25rem;
  height: 2px;
  background: currentColor;
  content: "";
}

.theme-night .section-label {
  color: #75bde8;
}

.display-title {
  max-width: 17ch;
  margin-bottom: 1.35rem;
  font-size: clamp(2.35rem, 5vw, 4.8rem);
  font-weight: 760;
  letter-spacing: -0.035em;
}

.theory-title-line {
  display: block;
}

#theory-title {
  max-width: none;
}

.products-display-title {
  max-width: none;
  font-size: clamp(2.35rem, 5vw, 4.5rem);
}

.products-display-title > span {
  display: block;
}

@media (min-width: 901px) {
  .theory-title-line {
    white-space: nowrap;
  }

  .products-display-title > span {
    white-space: nowrap;
  }
}

.section-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(17rem, 0.65fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: end;
  margin-bottom: clamp(3rem, 6vw, 5.5rem);
}

.section-intro > p {
  margin-bottom: 0.5rem;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
}

.theme-night .section-intro > p {
  color: var(--muted-dark);
}

.text-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: 0.55rem;
  color: var(--brand-blue);
  font-weight: 750;
  text-decoration: none;
}

.text-link::after {
  content: "↗";
  transition: transform 180ms var(--ease-out);
}

.text-link:hover::after {
  transform: translate(0.18rem, -0.18rem);
}

.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  color: #fff;
  transition: background 220ms ease, box-shadow 220ms ease;
}

.site-header.is-scrolled,
body:not([data-page="home"]) .site-header {
  background: rgba(6, 17, 26, 0.94);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  min-height: 5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: 0.7rem;
  color: #fff;
  font-weight: 750;
  text-decoration: none;
}

.brand img {
  width: 6.7rem;
  height: auto;
}

.brand span {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 1.9vw, 1.55rem);
}

.desktop-nav a {
  position: relative;
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding-block: 0.55rem;
  color: #d9e8f1;
  font-size: 0.92rem;
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
}

.desktop-nav a:not(.nav-cta)::after {
  position: absolute;
  right: 0;
  bottom: 0.2rem;
  left: 0;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--brand-red-bright);
  content: "";
  transition: transform 180ms var(--ease-out);
}

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

.nav-cta {
  min-height: 2.75rem;
  padding: 0.65rem 1rem !important;
  border-radius: 10px;
  background: var(--brand-red);
  color: #fff !important;
}

.nav-cta:hover {
  background: #ce2637;
}

.menu-toggle {
  display: none;
  width: 3rem;
  height: 3rem;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 10px;
  background: transparent;
  color: #fff;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 1.25rem;
  height: 2px;
  margin: 0.27rem auto;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.mobile-panel {
  display: none;
  position: fixed;
  z-index: 90;
  inset: 5rem 0 auto;
  max-height: calc(100svh - 5rem);
  overflow-y: auto;
  padding: 1rem var(--gutter) 1.5rem;
  border-top: 1px solid var(--line-dark);
  background: rgba(6, 17, 26, 0.98);
  color: #fff;
}

.mobile-panel.is-open {
  display: grid;
}

.mobile-panel a {
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line-dark);
  color: #eef7fc;
  font-size: 1.08rem;
  font-weight: 700;
  text-decoration: none;
}

.mobile-panel .nav-cta {
  margin-top: 0.65rem;
  padding-inline: 1rem !important;
  border: 0;
  text-align: center;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.button {
  display: inline-flex;
  min-height: 3.2rem;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.8rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 10px;
  font-weight: 760;
  text-decoration: none;
  transition: transform 180ms var(--ease-out), background 180ms ease, border-color 180ms ease;
}

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

.button-primary {
  background: var(--brand-red);
  color: #fff;
}

.button-primary:hover {
  background: #ce2637;
}

.button-secondary {
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(6, 17, 26, 0.4);
  color: #fff;
}

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

.hero {
  position: relative;
  display: grid;
  min-height: 100svh;
  align-items: center;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(4, 12, 18, 0.97) 0%, rgba(4, 12, 18, 0.74) 47%, rgba(4, 12, 18, 0.3) 100%),
    url("assets/v2/hero/hero.webp") center / cover no-repeat,
    var(--night);
  color: #fff;
}

.hero::after {
  position: absolute;
  inset: auto 0 0;
  height: 24%;
  background: linear-gradient(to bottom, transparent, var(--night));
  content: "";
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(20rem, 0.7fr);
  gap: clamp(2.5rem, 7vw, 6rem);
  align-items: center;
  padding-block: 8.5rem 6rem;
}

.hero-kicker {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.35rem;
  color: #b7d8eb;
  font-family: Helvetica, "Helvetica Neue", Arial, sans-serif;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.hero-kicker::before {
  width: 2.7rem;
  height: 2px;
  background: var(--brand-red-bright);
  content: "";
}

.hero h1 {
  max-width: 12ch;
  margin-bottom: 1.5rem;
  font-size: clamp(3.2rem, 7.8vw, 6rem);
  font-weight: 780;
  letter-spacing: -0.035em;
}

.hero-lead {
  max-width: 43rem;
  margin-bottom: 2rem;
  color: #c6dce8;
  font-size: clamp(1.06rem, 2vw, 1.3rem);
}

.hero-value {
  margin: 2rem 0 0;
  color: #91b8cf;
  font-size: 0.95rem;
  font-weight: 700;
}

.model-field {
  position: relative;
  min-height: 33rem;
  isolation: isolate;
}

.field-orbit,
.field-orbit::before,
.field-orbit::after {
  position: absolute;
  border: 1px solid rgba(108, 190, 235, 0.3);
  border-radius: 50%;
  content: "";
}

.field-orbit {
  inset: 16% 6% 7% 10%;
  border-color: rgba(183, 27, 45, 0.38);
}

.field-orbit::before {
  inset: 13%;
}

.field-orbit::after {
  inset: 31%;
  border-color: rgba(255, 255, 255, 0.35);
  background: rgba(7, 75, 135, 0.13);
  box-shadow: 0 18px 52px rgba(7, 75, 135, 0.3);
}

.field-node {
  position: absolute;
  z-index: 3;
  display: grid;
  width: 10rem;
  min-height: 6.5rem;
  place-content: center;
  padding: 1rem;
  border: 1px solid rgba(177, 219, 241, 0.32);
  border-radius: var(--radius);
  background: rgba(6, 17, 26, 0.78);
  box-shadow: var(--shadow);
  backdrop-filter: blur(9px);
}

.field-node strong {
  display: block;
  margin-bottom: 0.28rem;
  font-size: 1.02rem;
}

.field-node span {
  color: #99bdd1;
  font-size: 0.78rem;
}

.field-node.is-world {
  top: 4%;
  left: 0;
}

.field-node.is-decision {
  top: 41%;
  right: 0;
}

.field-node.is-action {
  bottom: 0;
  left: 11%;
}

.signal-trace {
  position: absolute;
  z-index: 2;
  top: 23%;
  left: 26%;
  width: 54%;
  height: 54%;
  border-top: 2px solid rgba(119, 200, 244, 0.55);
  border-right: 2px solid rgba(183, 27, 45, 0.65);
  border-bottom: 2px solid rgba(119, 200, 244, 0.55);
  border-radius: 0 60% 60% 0;
}

.signal-trace::after {
  position: absolute;
  top: -0.4rem;
  left: -0.25rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 18px 6px rgba(81, 187, 242, 0.65);
  content: "";
  animation: signal-pulse 3.6s var(--ease-out) infinite;
}

@keyframes signal-pulse {
  0%, 12% { transform: translate(0, 0); opacity: 0; }
  24% { opacity: 1; }
  62% { transform: translate(11.8rem, -0.05rem); opacity: 1; }
  100% { transform: translate(15rem, 12rem); opacity: 0; }
}

.paradigm-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(24rem, 0.85fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: stretch;
}

.paradigm-visual {
  min-height: 24rem;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: #dfe7ec;
}

.paradigm-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.paradigm-stage {
  display: flex;
  align-items: center;
  min-height: 24rem;
  padding: clamp(2rem, 5vw, 4rem);
  border-radius: var(--radius);
  background: #e6edf1;
}

.paradigm-panel {
  width: 100%;
}

.paradigm-panel h3 {
  max-width: none;
  margin-bottom: 1.25rem;
  font-size: clamp(2.25rem, 3.6vw, 3.7rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

.paradigm-title-zh,
.paradigm-title-en {
  display: block;
}

.paradigm-title-zh {
  margin-bottom: 0.75rem;
  color: var(--brand-red);
  font-size: clamp(1.45rem, 2vw, 2.1rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.paradigm-panel p {
  font-size: 1.08rem;
}

.paradigm-panel .limit {
  margin-top: 2rem;
  padding-top: 1.2rem;
  border-top: 1px solid #b6c7d0;
  color: var(--muted);
}

.formula-field {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  margin-top: clamp(4rem, 8vw, 7rem);
}

.architecture-title {
  margin: 0;
  font-size: clamp(2.35rem, 4vw, 4rem);
  font-weight: 760;
  line-height: 1.08;
  letter-spacing: -0.035em;
  text-align: center;
}

.architecture-image {
  width: min(100%, 42rem);
  margin: 0;
  overflow: hidden;
  border-radius: 12px;
  background: #fff;
}

.architecture-image img {
  display: block;
  width: 100%;
  height: auto;
}

.industry-bridge {
  display: flex;
  width: 100%;
  max-width: none;
  flex-wrap: nowrap;
  justify-content: center;
  gap: 1.4rem;
  align-items: center;
  margin-top: 4rem;
  padding: 1.5rem 0;
  border-block: 1px solid var(--line);
  text-align: center;
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  font-weight: 740;
}

.industry-bridge-label {
  color: var(--brand-red);
  font-family: Helvetica, "Helvetica Neue", Arial, sans-serif;
  white-space: nowrap;
}

.product-flow {
  display: grid;
  gap: clamp(5rem, 10vw, 9rem);
}

.product-chapter {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(19rem, 0.62fr);
  column-gap: clamp(2rem, 5vw, 4rem);
  row-gap: clamp(2rem, 3vw, 2.75rem);
  align-items: center;
}

.product-chapter.is-reversed .product-media {
  order: 2;
}

.product-chapter.is-reversed .product-copy {
  order: 1;
}

.product-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: #000;
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.32);
}

.product-media video,
.product-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.product-media--static {
  display: block;
  width: 100%;
  aspect-ratio: auto;
  justify-self: stretch;
}

.product-media--static .product-static-image {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
}

.product-media--static::after {
  content: none;
}

.product-media::after {
  position: absolute;
  inset: auto 0 0;
  height: 34%;
  background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.75));
  content: "";
  pointer-events: none;
}

.video-toggle {
  position: absolute;
  z-index: 2;
  right: 1rem;
  bottom: 1rem;
  min-width: 7.4rem;
  min-height: 2.85rem;
  padding: 0.65rem 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 10px;
  background: rgba(6, 17, 26, 0.86);
  color: #fff;
  font-weight: 750;
  cursor: pointer;
}

.product-media.is-unavailable .video-toggle {
  display: none;
}

.media-fallback {
  display: none;
  position: absolute;
  z-index: 2;
  inset: auto 1rem 1rem;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  background: rgba(6, 17, 26, 0.9);
  color: #fff;
  font-size: 0.9rem;
}

.product-media.is-unavailable .media-fallback {
  display: block;
}

.product-role {
  display: inline-flex;
  margin-bottom: 1.2rem;
  color: #75bde8;
  font-family: Helvetica, "Helvetica Neue", Arial, sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.product-copy h3 {
  margin-bottom: 1rem;
  font-size: clamp(2.35rem, 5vw, 4.4rem);
  letter-spacing: -0.035em;
}

.product-title--stacked > span {
  display: block;
  white-space: nowrap;
}

.product-copy > p {
  color: var(--muted-dark);
  font-size: 1.08rem;
}

.product-facts {
  display: grid;
  gap: 0;
  margin: 2rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line-dark);
  list-style: none;
}

.product-facts li {
  display: grid;
  grid-template-columns: 7.4rem 1fr;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line-dark);
}

.product-facts strong {
  color: #fff;
}

.product-facts span {
  color: var(--muted-dark);
}

.product-resource {
  order: 3;
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
}

.product-download-link {
  width: min(100%, 20rem);
  min-height: 5.75rem;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1rem 2.5rem;
  font-size: 1.3rem;
  line-height: 1.15;
}

.product-download-link small {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.82rem;
  font-weight: 600;
}

.application-mosaic {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-template-rows: clamp(24rem, 30vw, 29rem);
  gap: 1rem;
}

.application-tile {
  position: relative;
  min-height: 24rem;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--night);
  color: #fff;
}

.application-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 700ms var(--ease-out);
}

.application-tile::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5, 14, 21, 0.92), rgba(5, 14, 21, 0.02) 65%);
  content: "";
}

.application-tile:hover img {
  transform: scale(1.035);
}

.application-caption {
  position: absolute;
  z-index: 2;
  display: grid;
  grid-template-rows: 4.4rem 1fr;
  right: clamp(1.25rem, 3vw, 2rem);
  bottom: clamp(1.25rem, 3vw, 2rem);
  left: clamp(1.25rem, 3vw, 2rem);
  height: 11rem;
}

.application-caption h3 {
  margin-bottom: 0.6rem;
  font-size: clamp(1.25rem, 1.6vw, 1.75rem);
}

.application-caption p {
  margin-bottom: 0;
  color: #c6dce8;
}

.partnership-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}

.partnership-copy h3 {
  margin-bottom: 1.2rem;
  font-size: clamp(2rem, 4vw, 3.6rem);
}

.partnership-copy > p {
  color: var(--muted);
  font-size: 1.08rem;
}

.partnership-points {
  display: grid;
  gap: 0;
  margin: 0;
  margin-left: clamp(3rem, 6vw, 6rem);
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.partnership-points li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.partnership-points strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--brand-blue);
}

.partnership-points span {
  color: var(--muted);
}

.credibility-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.credibility-link {
  position: relative;
  height: clamp(12rem, 16vw, 15rem);
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--night-raised);
  color: #fff;
  text-decoration: none;
}

.credibility-link img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.56;
  transition: transform 600ms var(--ease-out), opacity 300ms ease;
}

.credibility-link::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6, 17, 26, 0.94), rgba(6, 17, 26, 0.08));
  content: "";
}

.credibility-link:hover img {
  transform: scale(1.035);
  opacity: 0.68;
}

.credibility-copy {
  position: absolute;
  z-index: 2;
  right: 1.8rem;
  bottom: 1.8rem;
  left: 1.8rem;
}

.credibility-copy span {
  color: #8ac4e6;
  font-family: Helvetica, "Helvetica Neue", Arial, sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.credibility-copy h3 {
  margin: 0.7rem 0 0;
  font-size: clamp(1.8rem, 3.6vw, 3.1rem);
}

.contact-stage {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 85% 20%, rgba(7, 75, 135, 0.56), transparent 34%),
    var(--night);
  color: #fff;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 3rem;
  align-items: center;
}

.collaboration-form {
  grid-column: 1 / -1;
  margin-top: clamp(1rem, 2vw, 2rem);
  padding-top: clamp(2rem, 4vw, 3.5rem);
  border-top: 1px solid var(--line-dark);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.7rem 1.5rem;
}

.form-field {
  display: grid;
  gap: 0.55rem;
}

.form-field-wide {
  grid-column: 1 / -1;
}

.form-trap {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-field label {
  color: #d7e8f1;
  font-size: 0.94rem;
  font-weight: 650;
}

.form-field label span {
  color: #75bde8;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  border: 1px solid rgba(142, 187, 214, 0.28);
  border-radius: 12px;
  background: rgba(13, 29, 41, 0.88);
  color: #f7fbfe;
  font: inherit;
  transition: border-color 180ms ease, background 180ms ease;
}

.form-field input,
.form-field select {
  min-height: 3.75rem;
  padding: 0.85rem 1rem;
}

.form-field textarea {
  min-height: 12rem;
  padding: 1rem;
  resize: vertical;
}

.form-field select {
  color-scheme: dark;
}

.form-field select:required:invalid {
  color: #819cab;
}

.form-field select option {
  background: var(--night-raised);
  color: #f7fbfe;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: #819cab;
  opacity: 1;
}

.form-field input:hover,
.form-field select:hover,
.form-field textarea:hover {
  border-color: rgba(142, 187, 214, 0.5);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: #75bde8;
  background: var(--night-raised);
  outline: 3px solid rgba(117, 189, 232, 0.24);
  outline-offset: 2px;
}

.form-field input[aria-invalid="true"],
.form-field select[aria-invalid="true"],
.form-field textarea[aria-invalid="true"] {
  border-color: #ef6a74;
}

.form-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1.5rem;
  margin-top: 2rem;
}

.collaboration-submit {
  min-width: 12rem;
  border: 0;
  background: var(--brand-red);
  color: #fff;
  cursor: pointer;
}

.collaboration-submit:hover {
  background: #ce2637;
}

.collaboration-submit:disabled,
.collaboration-submit:disabled:hover {
  transform: none;
  background: #6e2832;
  color: rgba(255, 255, 255, 0.72);
  cursor: not-allowed;
}

.collaboration-form[aria-busy="true"] .collaboration-submit {
  position: relative;
  padding-right: 3.35rem;
}

.collaboration-form[aria-busy="true"] .collaboration-submit::after {
  position: absolute;
  right: 1.25rem;
  width: 0.95rem;
  height: 0.95rem;
  border: 2px solid rgba(255, 255, 255, 0.38);
  border-top-color: #fff;
  border-radius: 50%;
  animation: form-submit-spin 720ms linear infinite;
  content: "";
}

.form-status {
  min-height: 1.65rem;
  margin: 1rem 0 0;
  color: #9fd4f0;
  font-weight: 650;
}

.form-status.is-error {
  color: #ff9ba3;
}

.form-status.is-success {
  color: #a9e6c4;
}

@keyframes form-submit-spin {
  to {
    transform: rotate(1turn);
  }
}

.contact-layout h2 {
  max-width: 13ch;
  margin-bottom: 1.2rem;
  font-size: clamp(2.7rem, 6vw, 5.3rem);
  letter-spacing: -0.035em;
}

.contact-layout p {
  color: var(--muted-dark);
  font-size: 1.08rem;
}

.qr-card {
  width: min(15rem, 42vw);
  padding: 0.75rem;
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  text-align: center;
}

.qr-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 9px;
}

.qr-card span {
  display: block;
  padding: 0.55rem 0.2rem 0.1rem;
  font-size: 0.85rem;
  font-weight: 700;
}

.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--line-dark);
  background: var(--night);
  color: #9cb7c7;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  font-size: 0.88rem;
}

.footer-brand {
  color: #fff;
  font-weight: 750;
}

.subpage-main {
  min-height: 70vh;
}

.subpage-hero {
  position: relative;
  min-height: min(78svh, 54rem);
  display: grid;
  align-items: end;
  overflow: hidden;
  background: var(--night);
  color: #fff;
}

.subpage-hero::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6, 17, 26, 0.96), rgba(6, 17, 26, 0.66) 55%, rgba(6, 17, 26, 0.15));
  content: "";
}

.subpage-hero > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.subpage-hero-content {
  position: relative;
  z-index: 2;
  max-width: 54rem;
  padding-block: 10rem 5rem;
}

.subpage-hero h1 {
  max-width: 12ch;
  margin-bottom: 1.25rem;
  font-size: clamp(3rem, 7vw, 5.8rem);
  letter-spacing: -0.035em;
}

#about-title {
  max-width: none;
}

.about-title-line {
  display: block;
  white-space: nowrap;
}

.subpage-hero p {
  color: #c1d8e5;
  font-size: clamp(1.08rem, 2vw, 1.3rem);
}

.story-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(2.5rem, 7vw, 6rem);
  align-items: start;
}

.story-aside {
  position: sticky;
  top: 7rem;
}

.story-aside h2,
.research-heading h2 {
  margin-bottom: 1.1rem;
  font-size: clamp(2.2rem, 4.5vw, 4rem);
  letter-spacing: -0.03em;
}

.story-body {
  font-size: clamp(1.08rem, 1.8vw, 1.25rem);
}

.story-body p {
  margin-bottom: 1.4rem;
}

.principle-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 4rem;
}

.principle-band div {
  min-height: 13rem;
  padding: 1.5rem;
  border-top: 3px solid var(--brand-blue);
  background: #e6edf1;
}

.principle-band div:nth-child(2) {
  border-color: var(--brand-red);
}

.principle-band strong {
  display: block;
  margin-bottom: 2.5rem;
  font-size: 1.15rem;
}

.principle-band span {
  color: var(--muted);
}

.timeline {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline::before {
  position: absolute;
  top: 0.5rem;
  bottom: 0.5rem;
  left: 7.2rem;
  width: 1px;
  background: var(--line);
  content: "";
}

.timeline li {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 2.5rem;
  padding-bottom: 2.7rem;
}

.timeline time {
  color: var(--brand-red);
  font-family: Helvetica, "Helvetica Neue", Arial, sans-serif;
  font-size: 0.86rem;
  font-weight: 800;
}

.timeline-content {
  position: relative;
}

.timeline-content::before {
  position: absolute;
  top: 0.35rem;
  left: -2.85rem;
  width: 0.72rem;
  height: 0.72rem;
  border: 2px solid var(--paper);
  border-radius: 50%;
  background: var(--brand-blue);
  box-shadow: 0 0 0 1px var(--brand-blue);
  content: "";
}

.timeline-content h3 {
  margin-bottom: 0.55rem;
  font-size: 1.4rem;
}

.timeline-content p {
  margin-bottom: 0;
  color: var(--muted);
}

.contact-details {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 3rem;
  align-items: center;
}

.contact-details h2 {
  font-size: clamp(2.3rem, 4.5vw, 4rem);
}

.contact-details p {
  color: var(--muted);
}

.research-hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(16rem, 0.55fr);
  gap: 3rem;
  align-items: end;
  padding-block: 10rem 5rem;
}

.research-hero-grid h1 {
  max-width: none;
  font-size: clamp(3rem, 4.6vw, 5rem);
  letter-spacing: -0.035em;
}

.research-title-line {
  display: block;
  white-space: nowrap;
}

.research-stat {
  padding: 1.8rem 0;
  border-block: 1px solid var(--line-dark);
}

.research-stat strong {
  display: block;
  margin-bottom: 0.25rem;
  font-family: Helvetica, "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(3.2rem, 7vw, 5.2rem);
  line-height: 1;
}

.research-stat span {
  color: var(--muted-dark);
}

.research-pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 3.5rem;
  border-block: 1px solid var(--line);
}

.research-pillars div {
  min-height: 12rem;
  padding: 1.5rem;
}

.research-pillars div + div {
  border-left: 1px solid var(--line);
}

.research-pillars b {
  display: block;
  margin-bottom: 3rem;
  color: var(--brand-red);
  font-family: Helvetica, "Helvetica Neue", Arial, sans-serif;
  font-size: 0.76rem;
}

.research-pillars strong {
  display: block;
  margin-bottom: 0.75rem;
  font-size: 1.15rem;
}

.research-pillars p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.lab-network {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(2.5rem, 7vw, 6rem);
  align-items: start;
}

.institution-logo-wall {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 1px;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--line-dark);
  list-style: none;
}

.institution-logo-wall li {
  display: grid;
  grid-template-rows: 4.5rem auto;
  gap: 0.75rem;
  align-items: center;
  justify-items: center;
  min-width: 0;
  min-height: 9rem;
  padding: 1.25rem 0.75rem;
  background: var(--paper-raised);
  text-align: center;
}

.institution-logo-wall img {
  width: min(100%, 7.5rem);
  height: 4.5rem;
  object-fit: contain;
}

.institution-logo-wall span {
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.4;
}

.paper-list {
  display: grid;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.publication-intro {
  max-width: 46rem;
  margin: clamp(4rem, 8vw, 7rem) 0 clamp(1.75rem, 4vw, 3rem);
}

.publication-intro h3 {
  margin: 1rem 0 0.75rem;
  font-size: clamp(1.85rem, 3.5vw, 3rem);
  line-height: 1.15;
}

.publication-intro p {
  margin: 0;
  color: var(--muted);
}

.paper-item {
  display: grid;
  grid-template-columns: minmax(10rem, 0.35fr) minmax(0, 1fr) auto;
  gap: clamp(1.2rem, 4vw, 3rem);
  align-items: start;
  padding: 2rem 0;
  border-bottom: 1px solid var(--line);
}

.publication-item {
  grid-template-columns: minmax(10rem, 0.35fr) minmax(0, 1fr);
}

.publication-title-link {
  color: var(--brand-blue);
  text-decoration-color: var(--line);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color 160ms ease, text-decoration-color 160ms ease;
}

.publication-title-link:hover {
  color: var(--brand-red);
  text-decoration-color: currentColor;
}

.publication-title-link:focus-visible {
  outline: 2px solid var(--brand-blue);
  outline-offset: 4px;
  border-radius: 2px;
}

.paper-meta {
  color: var(--brand-blue);
  font-family: Helvetica, "Helvetica Neue", Arial, sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
}

.paper-item h3 {
  margin-bottom: 0.65rem;
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  line-height: 1.3;
}

.paper-item p {
  margin-bottom: 0;
  color: var(--muted);
}

.paper-link {
  display: inline-flex;
  min-width: 3.1rem;
  min-height: 3.1rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--brand-blue);
  font-weight: 800;
  text-decoration: none;
}

@media (max-width: 1100px) {
  .desktop-nav {
    gap: 0.8rem;
  }

  .desktop-nav a {
    font-size: 0.85rem;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(16rem, 0.55fr);
  }

  .model-field {
    min-height: 28rem;
  }

  .field-node {
    width: 8.7rem;
  }

  .application-mosaic {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: repeat(2, 24rem);
  }
}

@media (max-width: 900px) {
  .desktop-nav {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  html:not(.js) .site-header {
    position: static;
    background: var(--night);
  }

  html:not(.js) .menu-toggle {
    display: none;
  }

  html:not(.js) .mobile-panel {
    position: static;
    display: grid;
    max-height: none;
  }

  .hero-grid,
  .section-intro,
  .product-chapter,
  .partnership-layout,
  .story-layout,
  .lab-network,
  .research-hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    padding-block: 8.5rem 4rem;
  }

  .model-field {
    min-height: 23rem;
  }

  .section-intro {
    align-items: start;
  }

  .industry-bridge {
    flex-wrap: wrap;
  }

  .partnership-points {
    margin-left: 0;
  }

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

  .paradigm-visual {
    min-height: 0;
    aspect-ratio: 16 / 9;
  }

  .product-chapter.is-reversed .product-media,
  .product-chapter.is-reversed .product-copy {
    order: initial;
  }

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

  .research-pillars div:nth-child(3) {
    border-left: 0;
  }

  .research-pillars div:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .story-aside {
    position: static;
  }

  .principle-band {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  :root {
    --gutter: 1.1rem;
    --section-space: 4.75rem;
  }

  html {
    scroll-padding-top: 5rem;
  }

  .header-inner {
    min-height: 4.6rem;
  }

  .brand img {
    width: 5.8rem;
  }

  .mobile-panel {
    inset-block-start: 4.6rem;
    max-height: calc(100svh - 4.6rem);
  }

  .hero h1 {
    font-size: clamp(3rem, 15vw, 4.5rem);
  }

  #about-title {
    font-size: clamp(2.2rem, 10.5vw, 3rem);
  }

  .research-title-line {
    white-space: normal;
  }

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

  .button-row,
  .button {
    width: 100%;
  }

  .model-field {
    min-height: 21rem;
  }

  .field-node {
    width: 7.4rem;
    min-height: 5.6rem;
    padding: 0.7rem;
  }

  .field-node strong {
    font-size: 0.9rem;
  }

  .field-node span {
    font-size: 0.68rem;
  }

  .signal-trace {
    left: 22%;
    width: 58%;
  }

  .paradigm-stage {
    padding: 1.4rem;
  }

  .product-facts li {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .application-tile {
    min-height: 23rem;
  }

  .application-mosaic {
    grid-template-columns: 1fr;
    grid-template-rows: none;
  }

  .application-caption {
    display: block;
    height: auto;
  }

  .credibility-links,
  .contact-layout,
  .contact-details,
  .research-pillars {
    grid-template-columns: 1fr;
  }

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

  .form-field-wide {
    grid-column: auto;
  }

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

  .collaboration-submit {
    width: 100%;
  }

  .institution-logo-wall {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .research-pillars div + div {
    padding-left: 0;
    border-left: 0;
  }

  .research-pillars div:nth-child(n + 2) {
    border-top: 1px solid var(--line);
  }

  .contact-layout {
    justify-items: start;
  }

  .qr-card {
    width: min(16rem, 100%);
  }

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

  .timeline::before {
    left: 0.35rem;
  }

  .timeline li {
    grid-template-columns: 1fr;
    gap: 0.45rem;
    padding-left: 2rem;
  }

  .timeline-content::before {
    left: -2rem;
  }

  .paper-item {
    grid-template-columns: 1fr;
  }

  .paper-link {
    width: 3.1rem;
  }
}

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

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