:root {
  color-scheme: light;
  --ink: #07111f;
  --ink-soft: #334155;
  --muted: #64748b;
  --line: #dbe5ef;
  --paper: #f6f9fc;
  --white: #ffffff;
  --blue: #0b64d8;
  --cyan: #02a5c7;
  --orange: #f47b34;
  --green: #0f9f6e;
  --radius: 8px;
  --shadow: 0 24px 72px rgba(15, 23, 42, 0.1);
  --content: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

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

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

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

h1 {
  margin-bottom: 24px;
  max-width: 940px;
  font-size: clamp(46px, 5.7vw, 82px);
  line-height: 1.03;
  font-weight: 880;
}

html[lang="en"] h1 {
  font-size: clamp(38px, 4.3vw, 60px);
  line-height: 1.08;
}

body[data-page="home"] .hero h1 {
  max-width: 900px;
}

@media (min-width: 1280px) {
  body[data-page="home"] .hero h1 {
    font-size: 72px;
  }
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(31px, 4.7vw, 56px);
  line-height: 1.08;
  font-weight: 840;
}

h3 {
  margin-bottom: 12px;
  font-size: 22px;
  line-height: 1.28;
}

p {
  color: var(--ink-soft);
  line-height: 1.82;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  height: 72px;
  padding: 0 clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.86);
  border-bottom: 1px solid rgba(219, 229, 239, 0.78);
  backdrop-filter: blur(18px);
}

.site-header.is-scrolled {
  box-shadow: 0 12px 36px rgba(15, 23, 42, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  width: 126px;
}

.brand img {
  width: 100%;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.5vw, 24px);
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 720;
}

.site-nav a {
  position: relative;
  padding: 10px 0;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, var(--blue), var(--orange));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a.active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 6px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 6px auto;
  background: var(--ink);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 0 0 auto;
}

.language-switch {
  display: inline-grid;
  grid-template-columns: repeat(3, 42px);
  height: 40px;
  padding: 3px;
  background: #f3f7fb;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.language-switch button {
  min-width: 0;
  padding: 0;
  color: var(--ink-soft);
  font: inherit;
  font-size: 13px;
  font-weight: 850;
  background: transparent;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
}

.language-switch button.active {
  color: var(--white);
  background: var(--orange);
  box-shadow: 0 8px 18px rgba(244, 123, 52, 0.24);
}

.header-contact {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 850;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero {
  min-height: 100svh;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(560px, 1.08fr) minmax(430px, 0.92fr);
  gap: clamp(44px, 5.8vw, 92px);
  align-items: center;
  padding:
    126px max(clamp(42px, 6vw, 96px), calc((100vw - 1480px) / 2 + 96px))
    88px;
  overflow: hidden;
  background:
    radial-gradient(circle at 76% 22%, rgba(2, 165, 199, 0.14), transparent 32%),
    radial-gradient(circle at 48% 52%, rgba(11, 100, 216, 0.055), transparent 34%),
    linear-gradient(180deg, #ffffff 0%, #f8fbff 54%, #eef6fb 100%);
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.hero-lede {
  max-width: 820px;
  margin-bottom: 32px;
  color: #21415e;
  font-size: clamp(18px, 1.65vw, 23px);
  font-weight: 680;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 820;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

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

.button.primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), #084aa4);
  box-shadow: 0 16px 36px rgba(11, 100, 216, 0.26);
}

.button.secondary {
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
}

.hero-visual {
  position: relative;
  min-height: 560px;
  overflow: hidden;
}

.hero-visual::before {
  position: absolute;
  inset: 8% -12% -8% 8%;
  content: "";
  background-image:
    linear-gradient(rgba(11, 100, 216, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 100, 216, 0.08) 1px, transparent 1px);
  background-size: 44px 44px;
  border-radius: 50%;
  mask-image: radial-gradient(circle, #000 32%, transparent 72%);
}

.visual-card {
  position: absolute;
  right: 0;
  bottom: 50%;
  width: min(620px, 100%);
  padding: 18px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(219, 229, 239, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  overflow: hidden;
  transform: translateY(50%);
}

.visual-card img {
  width: 100%;
  transform: translate3d(var(--mx, 0), var(--my, 0), 0);
  transition: transform 120ms ease-out;
}

.section {
  padding: 104px clamp(20px, 6vw, 92px);
  scroll-margin-top: 72px;
}

.section-heading {
  max-width: 900px;
  margin-bottom: 46px;
}

.pain-grid,
.solution-flow,
.evidence-grid,
.zigzag,
.body-grid,
.scenario-cards,
.events-layout,
.about-section,
.contact-section {
  max-width: var(--content);
  margin-right: auto;
  margin-left: auto;
}

.section-heading.center {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.pain-section .section-heading,
.solution-section .section-heading {
  max-width: 980px;
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.page-hero {
  max-width: var(--content);
  margin: 0 auto;
  padding: 148px clamp(20px, 6vw, 72px) 76px;
}

.page-hero h1 {
  max-width: 980px;
  font-size: clamp(42px, 6vw, 78px);
  line-height: 1.03;
}

.page-hero p:not(.eyebrow) {
  max-width: 820px;
  color: #21415e;
  font-size: clamp(18px, 2vw, 23px);
  font-weight: 640;
}

.section-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  max-width: var(--content);
  margin: 28px auto 0;
}

.section-actions.left {
  justify-content: flex-start;
}

.pain-section,
.body-section {
  background: var(--white);
}

.solution-section,
.about-section {
  background: var(--paper);
}

.brain-section,
.scenario-section,
.events-section {
  background: var(--white);
}

.pain-grid,
.solution-flow,
.body-grid,
.scenario-cards,
.events-layout {
  display: grid;
  gap: 18px;
}

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

.compact-grid article {
  min-height: 250px;
}

.pain-grid article,
.hardware-card {
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}

.pain-grid span {
  display: block;
  margin-bottom: 56px;
  color: var(--orange);
  font-size: 13px;
  font-weight: 850;
}

.solution-flow {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  counter-reset: solution;
}

.solution-flow div {
  position: relative;
  min-height: 250px;
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.solution-flow div::before {
  counter-increment: solution;
  content: "0" counter(solution);
  display: block;
  margin-bottom: 72px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 850;
}

.solution-flow strong {
  display: block;
  margin-bottom: 12px;
  font-size: 22px;
}

.page-flow div {
  min-height: 290px;
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 30px;
}

.evidence-grid figure {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}

.evidence-grid img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center;
  border-bottom: 1px solid var(--line);
}

.evidence-grid figcaption {
  min-height: 54px;
  display: flex;
  align-items: center;
  padding: 14px 16px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 760;
  line-height: 1.45;
}

.zigzag {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  gap: clamp(32px, 6vw, 82px);
  align-items: center;
  max-width: 1240px;
  margin-bottom: 72px;
}

.zigzag.reverse {
  grid-template-columns: minmax(420px, 1.05fr) minmax(0, 0.95fr);
}

.zigzag.reverse .copy-block {
  order: 2;
}

.copy-block h3 {
  font-size: clamp(26px, 3vw, 40px);
}

.copy-block p:not(.eyebrow) {
  max-width: 640px;
}

.copy-block ul {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.copy-block li {
  position: relative;
  padding-left: 20px;
  color: var(--ink-soft);
  line-height: 1.65;
}

.copy-block li::before {
  position: absolute;
  top: 0.75em;
  left: 0;
  width: 7px;
  height: 7px;
  content: "";
  background: var(--orange);
  border-radius: 50%;
}

.ui-visual,
.pipeline-visual {
  min-height: 410px;
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(11, 100, 216, 0.08), rgba(2, 165, 199, 0.04)),
    var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.ui-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 28px;
}

.ui-bar span {
  width: 10px;
  height: 10px;
  background: #c7d4e6;
  border-radius: 50%;
}

.ui-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.ui-node {
  min-height: 84px;
  display: flex;
  align-items: center;
  padding: 16px;
  color: var(--ink-soft);
  font-weight: 780;
  background: #f8fbff;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.ui-node.active {
  color: var(--blue);
  border-color: rgba(11, 100, 216, 0.42);
  box-shadow: inset 0 0 32px rgba(11, 100, 216, 0.08);
}

.ui-node.accent {
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border-color: transparent;
}

.tech-figure {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}

.tech-figure img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center;
  border-bottom: 1px solid var(--line);
}

.tech-figure figcaption {
  padding: 14px 16px 16px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.55;
}

.capability-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  max-width: var(--content);
  margin: 0 auto;
}

.capability-strip article {
  padding: 26px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}

.capability-strip h3 {
  margin-bottom: 10px;
}

.capability-strip p {
  margin-bottom: 0;
  font-size: 15px;
}

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

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

.route-axis-shell {
  max-width: var(--content);
  margin: 0 auto;
}

.route-axis {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.route-axis li {
  position: relative;
  min-width: 0;
  min-height: 248px;
  padding: 26px 22px 22px;
  background: linear-gradient(180deg, #f9fbfe 0%, #eef5fb 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}

.route-axis li::after {
  position: absolute;
  top: 36px;
  right: 18px;
  width: 34px;
  height: 2px;
  content: "";
  background: rgba(11, 100, 216, 0.22);
}

.route-axis li:last-child::after {
  display: none;
}

.route-axis span,
.proof-card span {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.route-axis strong {
  display: block;
  margin-bottom: 14px;
  font-size: 24px;
  line-height: 1.12;
}

.route-axis p {
  margin-bottom: 0;
  font-size: 15px;
  line-height: 1.72;
}

.technology-proofs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  max-width: var(--content);
  margin: 0 auto;
}

.proof-card {
  display: grid;
  grid-template-columns: minmax(250px, 0.92fr) minmax(0, 1.08fr);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}

.proof-card img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  object-position: center;
  border-right: 1px solid var(--line);
}

.proof-card > div {
  padding: 26px;
}

.proof-card h3 {
  margin-bottom: 12px;
  font-size: clamp(24px, 2.2vw, 34px);
}

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

.tech-stage-media {
  display: grid;
  gap: 16px;
}

.tech-video-card {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}

.tech-video-copy {
  position: relative;
  padding: 16px 54px 16px 18px;
}

.tech-video-copy strong,
.tech-video-copy span {
  display: block;
}

.tech-video-copy strong {
  margin-bottom: 6px;
  font-size: 15px;
}

.tech-video-copy span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.tech-video-toggle summary {
  list-style: none;
  cursor: pointer;
}

.tech-video-toggle summary::-webkit-details-marker {
  display: none;
}

.tech-video-toggle summary::after {
  position: absolute;
  top: 50%;
  right: 18px;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  content: "▶";
  color: var(--white);
  font-size: 11px;
  font-weight: 800;
  background: var(--blue);
  border-radius: 999px;
  transform: translateY(-50%);
}

.tech-video-toggle[open] summary::after {
  content: "−";
  font-size: 18px;
}

.tech-video-card video {
  width: 100%;
  display: block;
  margin-top: 0;
  background: #000;
}

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

.hardware-card {
  display: grid;
  grid-template-rows: 240px 1fr;
  overflow: hidden;
  padding: 0;
}

.product-shot,
.product-emblem {
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.product-shot img {
  max-width: 100%;
  filter: drop-shadow(0 20px 40px rgba(15, 23, 42, 0.12));
}

.product-emblem img {
  width: min(280px, 84%);
}

.product-emblem.compact img {
  width: 170px;
}

.hardware-copy {
  padding: 26px;
}

.hardware-copy span {
  display: block;
  margin-bottom: 14px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.hardware-copy p {
  margin-bottom: 0;
}

.scenario-cards {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.scenario-card {
  position: relative;
  min-height: 430px;
  display: flex;
  align-items: end;
  overflow: hidden;
  padding: 24px;
  color: var(--white);
  background: #111827;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.scenario-card::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(180deg, transparent 0%, rgba(8, 17, 31, 0.82) 70%),
    var(--scene);
  background-position: center;
  background-size: cover;
  transition: transform 220ms ease;
}

.scenario-card:hover::before {
  transform: scale(1.04);
}

.scenario-card div {
  position: relative;
  z-index: 1;
}

.scenario-card span {
  display: block;
  margin-bottom: 12px;
  color: #93e9ff;
  font-size: 11px;
  font-weight: 850;
  text-transform: uppercase;
}

.scenario-card p {
  color: rgba(255, 255, 255, 0.78);
}

.scenario-card.sort {
  --scene: linear-gradient(135deg, rgba(11, 100, 216, 0.3), rgba(0, 0, 0, 0.1)), url("assets/illustrations/hero-robot-platform.jpg");
}

.scenario-card.waste {
  --scene:
    linear-gradient(135deg, rgba(15, 159, 110, 0.46), rgba(0, 0, 0, 0.24)),
    url("assets/illustrations/core-pain-points.png");
}

.scenario-card.rail {
  --scene:
    linear-gradient(135deg, rgba(244, 123, 52, 0.38), rgba(0, 0, 0, 0.2)),
    url("assets/illustrations/embodied-roadmap.png");
}

.scenario-card.twin {
  --scene:
    linear-gradient(135deg, rgba(2, 165, 199, 0.34), rgba(0, 0, 0, 0.18)),
    url("assets/illustrations/zhirong-first-page.png");
}

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

.events-layout {
  grid-template-columns: minmax(0, 1.18fr) minmax(360px, 0.82fr);
  align-items: stretch;
}

.featured-event,
.event-list article {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}

.featured-event {
  display: grid;
  grid-template-columns: minmax(300px, 0.94fr) minmax(0, 1.06fr);
  overflow: hidden;
}

.event-stack {
  display: grid;
  gap: 18px;
}

.event-media {
  display: grid;
  grid-template-rows: minmax(260px, 1fr) auto;
  min-width: 0;
  border-right: 1px solid var(--line);
}

.event-media > img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
  object-position: center;
}

.event-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
}

.event-gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center;
  background: var(--white);
}

.featured-event > div:not(.event-media) {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: clamp(26px, 4vw, 44px);
}

.featured-event span,
.event-list time {
  display: block;
  margin-bottom: 14px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

.featured-event h3 {
  font-size: clamp(26px, 3vw, 38px);
}

.featured-event p {
  margin-bottom: 24px;
}

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

.event-list article {
  padding: 24px;
}

.event-list h3 {
  margin-bottom: 8px;
  font-size: 20px;
}

.event-list p {
  margin-bottom: 0;
  font-size: 15px;
}

.home-event,
.split-feature {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1.05fr);
  gap: clamp(28px, 5vw, 68px);
  align-items: center;
  max-width: var(--content);
  margin: 0 auto;
}

.home-event img,
.split-feature img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.split-feature {
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
}


.contact-topics {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 22px;
}

.about-section {
  display: grid;
  grid-template-columns: minmax(360px, 0.74fr) minmax(620px, 1.26fr);
  gap: clamp(34px, 5vw, 72px);
  align-items: center;
  max-width: min(1500px, calc(100vw - 80px));
}

body[data-page="about"] .about-section {
  grid-template-columns: 1fr;
  gap: 34px;
}

body[data-page="about"] .about-copy {
  max-width: 880px;
}

.about-panel {
  padding: clamp(22px, 2.2vw, 34px);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}

.about-panel > img {
  max-width: min(520px, 100%);
}

body[data-page="about"] .about-panel {
  width: 100%;
}

.team-portraits {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

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

.team-portraits article {
  min-width: 0;
  padding: 14px;
  background: #f8fbff;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.team-portraits img {
  width: 100%;
  aspect-ratio: 1 / 1;
  height: auto;
  object-fit: contain;
  object-position: center;
  background: var(--white);
  border-radius: 5px;
}

.compact-team img,
.team-directory img {
  aspect-ratio: 1 / 1;
  height: auto;
}

.team-portraits strong,
.team-portraits span {
  display: block;
}

.team-portraits strong {
  margin-top: 12px;
  font-size: 15px;
}

.team-portraits span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.about-origin {
  margin: 18px 0 0;
  color: #34506a;
  font-size: 15px;
  font-weight: 620;
}

.slide-frame {
  max-width: var(--content);
  margin: 0 auto 28px;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}

.slide-frame img {
  width: 100%;
}

.scenario-visual img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  max-width: var(--content);
  margin: 0 auto;
}

.impact-grid-tight {
  margin-top: 18px;
}

.single-impact-grid {
  grid-template-columns: minmax(0, 620px);
  justify-content: center;
}

.impact-card {
  padding: 26px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}

.impact-card > span {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.impact-card h3 {
  font-size: 24px;
}

.impact-note,
.impact-list p {
  margin-bottom: 14px;
  font-size: 15px;
}

.validation-card img {
  object-position: center;
}

.validation-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 22px;
}

.validation-metrics strong {
  display: flex;
  align-items: center;
  min-height: 54px;
  padding: 12px 14px;
  color: #07111f;
  font-size: 14px;
  line-height: 1.35;
  background: #f4f8fc;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.logo-pair {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.logo-tile {
  min-width: 0;
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 18px;
  background: #f8fbff;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.logo-tile img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  object-position: center;
}

.logo-tile strong {
  font-size: 14px;
  line-height: 1.4;
}

.wordmark-chip {
  min-height: 90px;
  display: grid;
  place-items: center;
  padding: 16px;
  color: var(--blue);
  font-size: 26px;
  font-weight: 850;
  line-height: 1.1;
  text-align: center;
  background: linear-gradient(135deg, #eef5ff, #f8fbff);
  border: 1px solid #d7e6ff;
  border-radius: 6px;
}

.wordmark-chip-dark {
  min-height: 76px;
  color: #8c1515;
  font-size: 22px;
  background: linear-gradient(135deg, #fff7f7, #fffefe);
  border-color: #f1d5d5;
}

.badge-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.badge-cloud span {
  padding: 10px 12px;
  color: #254158;
  font-size: 13px;
  font-weight: 760;
  background: #eef5fb;
  border-radius: 999px;
}

.impact-proof {
  max-width: var(--content);
  margin: 0 auto;
}

.impact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.quote-card {
  text-align: center;
}

.quote-logo {
  width: min(220px, 100%);
  margin: 4px auto 18px;
}

.quote-logo-seal {
  width: min(148px, 100%);
}

.stanford-lockup {
  display: grid;
  justify-items: center;
  gap: 12px;
  margin: 6px auto 20px;
}

.stanford-seal {
  width: min(112px, 42%);
  aspect-ratio: 1;
  object-fit: contain;
}

.stanford-wordmark {
  width: min(300px, 88%);
  max-height: 86px;
  object-fit: contain;
}

.impact-roadmap {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
  max-width: var(--content);
  margin: 0 auto;
}

.impact-roadmap div {
  min-height: 110px;
  display: grid;
  place-items: center;
  padding: 16px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 780;
  line-height: 1.45;
  text-align: center;
  background: linear-gradient(180deg, #f9fbfe 0%, #eef5fb 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}

.team-directory p {
  margin: 10px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.65;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.about-tags span {
  padding: 9px 11px;
  color: #254158;
  font-size: 13px;
  font-weight: 760;
  background: #eef5fb;
  border-radius: 999px;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: clamp(28px, 6vw, 80px);
  align-items: center;
  background: linear-gradient(135deg, #f8fbff 0%, #eef7fc 100%);
}

.contact-copy p {
  max-width: 760px;
}

.wechat-card {
  padding: 18px;
  text-align: center;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.wechat-card img {
  width: 100%;
  border-radius: 6px;
}

.wechat-card strong,
.wechat-card span {
  display: block;
}

.wechat-card strong {
  margin-top: 14px;
  font-size: 18px;
}

.wechat-card span {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.email-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  margin-top: 14px;
  padding: 0 14px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 820;
  background: #eef5ff;
  border: 1px solid #d8e8ff;
  border-radius: 6px;
}

.zrbot-widget {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 60;
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 18px;
  color: var(--white);
  font-weight: 850;
  background: linear-gradient(135deg, var(--blue), #084aa4);
  border-radius: 8px;
  box-shadow: 0 18px 42px rgba(11, 100, 216, 0.28);
}

.zrbot-widget span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 50%;
}

.entity-note {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.entity-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.site-footer {
  padding: 64px clamp(20px, 6vw, 92px) 32px;
  color: rgba(255, 255, 255, 0.86);
  background: #07111f;
}

.compact-footer {
  padding-top: 34px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 42px;
}

.footer-brand img {
  width: 118px;
  padding: 4px 8px;
  background: var(--white);
  border-radius: 6px;
}

.footer-brand p,
.site-footer p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  margin-bottom: 44px;
}

.footer-links h3 {
  margin-bottom: 16px;
  font-size: 15px;
}

.footer-links a {
  display: block;
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 14px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 22px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom span {
  overflow-wrap: anywhere;
}

@media (max-width: 1120px) {
  .site-header {
    gap: 12px;
  }

  .site-nav {
    gap: 12px;
    font-size: 13px;
  }

  .header-contact {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-visual {
    min-height: auto;
  }

  .visual-card {
    position: relative;
    right: auto;
    bottom: auto;
    width: min(720px, 100%);
    margin-top: 18px;
    transform: none;
  }

  .solution-flow,
  .evidence-grid,
  .body-grid,
  .scenario-cards,
  .events-layout,
  .featured-event,
  .capability-strip,
  .impact-grid,
  .detail-grid,
  .technology-gallery,
  .technology-proofs,
  .home-event,
  .split-feature,
  .about-section {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .proof-card img {
    min-height: 220px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .compact-team,
  .team-directory {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  html {
    scroll-padding-top: 66px;
  }

  .site-header {
    height: 66px;
    padding: 0 18px;
  }

  .brand {
    width: 112px;
  }

  .nav-toggle {
    display: block;
    z-index: 42;
  }

  .site-nav {
    position: fixed;
    inset: 66px 0 auto;
    display: grid;
    gap: 0;
    padding: 14px 20px 24px;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--line);
    transform: translateY(-120%);
    transition: transform 180ms ease;
  }

  body.nav-open .site-nav {
    transform: translateY(0);
  }

  .site-nav a {
    padding: 14px 0;
  }

  .header-actions {
    margin-left: auto;
    gap: 8px;
  }

  .language-switch {
    grid-template-columns: repeat(3, 34px);
    height: 36px;
  }

  .language-switch button {
    font-size: 12px;
  }

  .hero {
    padding: 106px 20px 76px;
  }

  h1 {
    font-size: 42px;
  }

  html[lang="en"] h1 {
    font-size: 38px;
  }

  .section {
    padding: 76px 20px;
    scroll-margin-top: 66px;
  }

  .page-hero {
    padding: 116px 20px 58px;
  }

  .page-hero h1 {
    font-size: 42px;
  }

  .pain-grid,
  .solution-flow,
  .evidence-grid,
  .zigzag,
  .zigzag.reverse,
  .body-grid,
  .scenario-cards,
  .events-layout,
  .featured-event,
  .capability-strip,
  .impact-grid,
  .detail-grid,
  .technology-gallery,
  .technology-proofs,
  .home-event,
  .split-feature,
  .about-section,
  .contact-section,
  .footer-links {
    grid-template-columns: 1fr;
  }

  .route-axis {
    grid-template-columns: 1fr;
  }

  .logo-pair,
  .impact-roadmap {
    grid-template-columns: 1fr;
  }

  .event-media {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .event-media > img {
    min-height: 260px;
  }

  .zigzag.reverse .copy-block {
    order: 0;
  }

  .ui-visual,
  .pipeline-visual {
    min-height: 320px;
  }

  .pipeline-visual {
    grid-template-columns: 1fr;
  }

  .pipeline-visual div,
  .pipeline-visual div:nth-child(2n) {
    min-height: 72px;
    align-items: center;
  }

  .hardware-card {
    grid-template-rows: 220px 1fr;
  }

  .home-event img,
  .split-feature img {
    aspect-ratio: 4 / 3;
  }

  .contact-section {
    gap: 28px;
  }

  .wechat-card {
    max-width: 340px;
  }

  .team-portraits {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    display: grid;
  }
}

@media (max-width: 480px) {
  .hero-actions,
  .button {
    width: 100%;
  }

  .hero-actions {
    display: grid;
  }

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

  .brand {
    width: 96px;
  }

  .language-switch {
    grid-template-columns: repeat(3, 30px);
  }

  .zrbot-widget {
    right: 16px;
    bottom: 16px;
    width: 54px;
    min-height: 54px;
    padding: 0;
    gap: 0;
    overflow: hidden;
    font-size: 0;
    border-radius: 999px;
  }

  .zrbot-widget span {
    width: 32px;
    height: 32px;
    font-size: 13px;
  }
}

/* ZRCoPilot product homepage */
.product-home {
  background: #07090d;
}

.product-page {
  background: #f4f8fc;
}

.product-home .site-header {
  color: rgba(255, 255, 255, 0.86);
  background: rgba(7, 9, 13, 0.72);
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.product-page .site-header {
  color: rgba(255, 255, 255, 0.86);
  background: rgba(7, 9, 13, 0.78);
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.product-home .brand {
  width: 168px;
  padding: 0;
  background: transparent;
  border-radius: 0;
}

.product-page .brand {
  width: 168px;
  padding: 0;
  background: transparent;
  border-radius: 0;
}

.product-home .site-nav {
  color: rgba(255, 255, 255, 0.72);
}

.product-page .site-nav {
  color: rgba(255, 255, 255, 0.72);
}

.product-home .site-nav a:hover,
.product-home .site-nav a.active,
.product-page .site-nav a:hover,
.product-page .site-nav a.active {
  color: #fff;
}

.product-home .header-contact {
  color: #090c11;
  background: #fff;
  border-color: rgba(255, 255, 255, 0.18);
}

.product-page .header-contact {
  color: #090c11;
  background: #fff;
  border-color: rgba(255, 255, 255, 0.18);
}

.product-home .language-switch {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
}

.product-page .language-switch {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
}

.product-home .language-switch button {
  color: rgba(255, 255, 255, 0.7);
}

.product-page .language-switch button {
  color: rgba(255, 255, 255, 0.7);
}

.product-home .language-switch button.active {
  color: #07111f;
  background: #fff;
  box-shadow: none;
}

.product-page .language-switch button.active {
  color: #07111f;
  background: #fff;
  box-shadow: none;
}

.product-home .footer-brand img {
  width: min(420px, 100%);
  padding: 0;
  background: transparent;
  border-radius: 0;
}

.product-page .page-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: end;
  max-width: none;
  min-height: min(620px, 74svh);
  padding: 154px clamp(20px, 7vw, 112px) 88px;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 78% 24%, rgba(0, 184, 255, 0.18), transparent 34%),
    radial-gradient(circle at 18% 76%, rgba(244, 123, 52, 0.1), transparent 30%),
    linear-gradient(180deg, #07090d 0%, #0b111a 58%, #07090d 100%);
}

.product-page .page-hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 72% 34%, #000 0, transparent 58%);
  pointer-events: none;
}

.product-page .page-hero::after {
  position: absolute;
  inset: auto 0 0;
  height: 30%;
  content: "";
  background: linear-gradient(180deg, transparent, #f4f8fc 92%);
  pointer-events: none;
}

.product-page .page-hero > * {
  position: relative;
  z-index: 1;
}

.product-page .page-hero .eyebrow {
  margin-bottom: 18px;
  color: #7cecff;
}

.product-page .page-hero h1 {
  max-width: 1120px;
  margin-bottom: 22px;
  color: #fff;
  font-size: clamp(44px, 5.3vw, 82px);
}

.product-page .page-hero > p:not(.eyebrow) {
  max-width: 860px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: clamp(18px, 1.65vw, 23px);
  font-weight: 560;
}

.page-hero-card {
  display: none;
}

.page-hero-card span,
.page-hero-card strong {
  display: block;
}

.page-hero-card span {
  margin-bottom: 64px;
  color: #7cecff;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.page-hero-card strong {
  margin-bottom: 14px;
  color: #fff;
  font-size: clamp(23px, 2.1vw, 32px);
  line-height: 1.16;
}

.product-page .page-hero-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.64);
  font-size: 15px;
  font-weight: 520;
  line-height: 1.72;
}

.product-page main > .section {
  background: #fff;
}

.product-page main > .section:nth-of-type(odd) {
  background: #f4f8fc;
}

.product-page .section-heading h2 {
  color: #0b1220;
}

.product-page .section-heading p:not(.eyebrow) {
  color: #334155;
}

.product-page .compact-footer {
  color: rgba(255, 255, 255, 0.86);
  background: #07111f;
}

.product-hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: end;
  overflow: hidden;
  padding: 132px clamp(20px, 6vw, 92px) 64px;
  color: #fff;
  background:
    radial-gradient(circle at 78% 30%, rgba(0, 184, 255, 0.18), transparent 34%),
    linear-gradient(180deg, #07090d 0%, #090d14 56%, #030406 100%);
}

.product-hero::after {
  position: absolute;
  inset: auto 0 0;
  height: 34%;
  content: "";
  background: linear-gradient(180deg, transparent, #07090d 82%);
  pointer-events: none;
}

.product-hero-image {
  position: absolute;
  top: 0;
  right: 0;
  width: min(78vw, 1480px);
  height: 100%;
  object-fit: cover;
  object-position: right center;
  opacity: 0.98;
}

.product-hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 9, 13, 0.96) 0%, rgba(7, 9, 13, 0.82) 33%, rgba(7, 9, 13, 0.2) 68%, rgba(7, 9, 13, 0.08) 100%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.52), transparent 22%, rgba(0, 0, 0, 0.18) 100%);
}

.product-hero-copy {
  position: relative;
  z-index: 2;
  width: min(940px, 100%);
}

body.motion-ready .hero-entrance {
  opacity: 0;
  transform: translateY(12px);
  animation: hero-rise 760ms cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
  animation-delay: var(--motion-delay, 0ms);
}

body.motion-ready .product-hero-image.hero-entrance {
  transform: translateY(12px) scale(1.012);
  animation-name: hero-image-rise;
}

.product-kicker {
  margin-bottom: 18px;
  color: #7cecff;
  font-size: clamp(36px, 5vw, 72px);
  line-height: 1;
  font-weight: 900;
}

.product-hero h1 {
  margin-bottom: 24px;
  max-width: 860px;
  color: #fff;
  font-size: clamp(46px, 5.4vw, 88px);
  line-height: 1.04;
}

.product-lede {
  max-width: 700px;
  margin-bottom: 32px;
  color: rgba(255, 255, 255, 0.72);
  font-size: clamp(17px, 1.5vw, 22px);
  font-weight: 520;
  line-height: 1.75;
}

.product-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button.product-primary {
  color: #07111f;
  background: #fff;
  box-shadow: 0 18px 48px rgba(255, 255, 255, 0.14);
}

.button.product-secondary {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.24);
  backdrop-filter: blur(16px);
}

.button.product-secondary.light {
  color: #07111f;
  background: #fff;
  border-color: rgba(7, 17, 31, 0.14);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 680px;
  margin-top: 42px;
}

.hero-metrics article {
  min-height: 104px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  backdrop-filter: blur(14px);
}

@keyframes hero-rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes hero-image-rise {
  to {
    opacity: 0.98;
    transform: translateY(0) scale(1);
  }
}

body.motion-ready .reveal-on-scroll {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity 640ms cubic-bezier(0.2, 0.8, 0.2, 1),
    transform 640ms cubic-bezier(0.2, 0.8, 0.2, 1),
    border-color 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease;
  transition-delay: var(--reveal-delay, 0ms);
}

body.motion-ready .reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

body.motion-ready .route-cards article.reveal-on-scroll.is-visible,
body.motion-ready .page-flow div.reveal-on-scroll.is-visible,
body.motion-ready .solution-flow div.reveal-on-scroll.is-visible {
  border-color: rgba(11, 100, 216, 0.28);
  box-shadow: 0 18px 42px rgba(15, 23, 42, 0.08);
}

.hero-metrics strong,
.hero-metrics span {
  display: block;
}

.hero-metrics strong {
  margin-bottom: 10px;
  color: #fff;
  font-size: clamp(26px, 3vw, 40px);
  line-height: 1;
}

.hero-metrics span {
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
  font-weight: 760;
}

.product-section,
.product-system-section {
  padding: 108px clamp(20px, 6vw, 92px);
  background: #fff;
}

.product-section-heading,
.system-copy,
.partner-copy {
  max-width: 1120px;
}

.product-section-heading {
  margin: 0 auto 44px;
  text-align: center;
}

.product-section-heading h2,
.system-copy h2,
.partner-copy h2 {
  color: #0b1220;
  font-size: clamp(34px, 4.1vw, 60px);
  letter-spacing: 0;
}

.product-section-heading p:not(.eyebrow),
.system-copy p,
.partner-copy p {
  color: #334155;
  font-size: 18px;
}

.thesis-grid,
.route-cards,
.partner-logos,
.copilot-capabilities {
  display: grid;
  gap: 16px;
  max-width: var(--content);
  margin: 0 auto;
}

.thesis-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.thesis-grid article,
.route-cards article,
.partner-logos article,
.copilot-capabilities article {
  min-width: 0;
  padding: 26px;
  background: #f8fafc;
  border: 1px solid #dbe5ef;
  border-radius: 8px;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.thesis-grid article:hover,
.route-cards article:hover,
.partner-logos article:hover,
.copilot-capabilities article:hover,
.public-signal-cards article:hover,
.event-list article:hover,
.featured-event:hover,
.impact-card:hover,
.home-event:hover {
  transform: translateY(-2px);
  border-color: rgba(11, 100, 216, 0.28);
  box-shadow: 0 18px 42px rgba(15, 23, 42, 0.09);
}

.thesis-grid span,
.route-cards span,
.copilot-capabilities span {
  display: block;
  margin-bottom: 54px;
  color: #0b64d8;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.thesis-grid h3,
.route-cards h3,
.copilot-capabilities h3 {
  color: #0b1220;
}

.thesis-grid p,
.route-cards p,
.copilot-capabilities p {
  margin-bottom: 0;
  font-size: 15px;
  line-height: 1.75;
}

.copilot-capability-section {
  background: #fff;
}

.copilot-capabilities {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.copilot-capabilities article {
  min-height: 310px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(244, 248, 252, 0.98)),
    #fff;
}

.product-system-section {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(560px, 1.18fr);
  gap: clamp(36px, 5vw, 78px);
  align-items: center;
  color: #fff;
  background:
    radial-gradient(circle at 68% 40%, rgba(0, 184, 255, 0.12), transparent 30%),
    linear-gradient(180deg, #07090d, #0d1420);
}

.system-copy h2,
.system-copy p {
  color: #fff;
}

.system-copy p {
  color: rgba(255, 255, 255, 0.68);
}

.system-diagram {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(220px, 1.12fr) minmax(0, 0.94fr);
  grid-template-rows: repeat(4, minmax(112px, auto));
  gap: 14px;
  --orbit-radius: clamp(190px, 25vw, 360px);
}

.system-diagram::before {
  position: absolute;
  inset: 11% 10%;
  content: "";
  border: 1px solid rgba(124, 236, 255, 0.18);
  border-radius: 999px;
  box-shadow:
    0 0 60px rgba(0, 184, 255, 0.12),
    inset 0 0 48px rgba(124, 236, 255, 0.04);
}

.system-diagram::after {
  position: absolute;
  inset: 24% 27%;
  content: "";
  border: 1px solid rgba(124, 236, 255, 0.08);
  border-radius: 999px;
  pointer-events: none;
}

.system-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 1;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: #7cecff;
  box-shadow:
    0 0 14px rgba(124, 236, 255, 0.82),
    0 0 34px rgba(0, 184, 255, 0.44);
  animation: system-orbit 15s linear infinite;
}

.system-pulse.pulse-b {
  width: 5px;
  height: 5px;
  animation-delay: -7.5s;
  opacity: 0.74;
}

.system-core,
.system-node {
  position: relative;
  z-index: 2;
  min-width: 0;
  min-height: 120px;
  display: grid;
  align-content: center;
  padding: 20px;
  border-radius: 8px;
}

.system-core {
  grid-column: 2;
  grid-row: 1 / span 4;
  min-height: 490px;
  overflow: hidden;
  text-align: center;
  background:
    linear-gradient(rgba(124, 236, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 236, 255, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04)),
    #101722;
  background-size: 34px 34px, 34px 34px, auto, auto;
  border: 1px solid rgba(124, 236, 255, 0.28);
  box-shadow:
    0 24px 80px rgba(0, 0, 0, 0.34),
    0 0 48px rgba(124, 236, 255, 0.08),
    inset 0 0 58px rgba(124, 236, 255, 0.055);
}

.system-core::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    radial-gradient(circle at 50% 40%, rgba(124, 236, 255, 0.14), transparent 28%),
    linear-gradient(120deg, transparent 18%, rgba(255, 255, 255, 0.08) 48%, transparent 68%);
  opacity: 0.78;
  pointer-events: none;
}

.system-core::after {
  position: absolute;
  inset: 16px;
  content: "";
  border: 1px solid rgba(124, 236, 255, 0.12);
  border-radius: 6px;
  pointer-events: none;
}

.system-core > * {
  position: relative;
  z-index: 1;
}

.system-core > span:first-child {
  align-self: end;
  margin-bottom: 22px;
  color: rgba(124, 236, 255, 0.78);
  font-size: 11px;
  font-weight: 840;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.system-core strong {
  color: #fff;
  font-size: clamp(30px, 2.45vw, 38px);
  line-height: 1;
  white-space: nowrap;
  overflow-wrap: anywhere;
}

.system-core span:not(:first-child) {
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 14px;
}

.system-node {
  overflow: visible;
  align-content: start;
  gap: 10px;
  color: rgba(255, 255, 255, 0.82);
  transform: translateY(0);
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.045);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease;
}

.system-node::before,
.system-node::after {
  position: absolute;
  top: 50%;
  width: 34px;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, rgba(124, 236, 255, 0), rgba(124, 236, 255, 0.34));
  pointer-events: none;
}

.system-node.input::after {
  right: -35px;
}

.system-node.output::before {
  left: -35px;
  background: linear-gradient(90deg, rgba(124, 236, 255, 0.34), rgba(124, 236, 255, 0));
}

.system-node:hover {
  transform: translateY(-3px);
  background: rgba(124, 236, 255, 0.075);
  border-color: rgba(124, 236, 255, 0.32);
  box-shadow:
    0 18px 45px rgba(0, 0, 0, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.system-node span {
  color: rgba(124, 236, 255, 0.7);
  font-size: 11px;
  font-weight: 860;
  line-height: 1;
  letter-spacing: 0.08em;
}

.system-node strong {
  color: #fff;
  font-size: 16px;
  line-height: 1.25;
  font-weight: 880;
}

.system-node p {
  margin: 0;
  color: rgba(255, 255, 255, 0.52);
  font-size: 12px;
  font-weight: 560;
  line-height: 1.55;
}

.system-node.input {
  text-align: left;
}

.system-node.output {
  text-align: left;
}

.node-xr,
.node-ai {
  grid-row: 1;
}

.node-arm,
.node-data {
  grid-row: 2;
}

.node-touch,
.node-model {
  grid-row: 3;
}

.node-ego,
.node-validate {
  grid-row: 4;
}

.node-xr,
.node-arm,
.node-touch,
.node-ego {
  grid-column: 1;
}

.node-ai,
.node-data,
.node-model,
.node-validate {
  grid-column: 3;
}

@keyframes system-orbit {
  from {
    transform: translate(-50%, -50%) rotate(0deg) translateX(var(--orbit-radius)) rotate(0deg);
  }

  to {
    transform: translate(-50%, -50%) rotate(360deg) translateX(var(--orbit-radius)) rotate(-360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  body.motion-ready .hero-entrance,
  body.motion-ready .reveal-on-scroll {
    opacity: 1;
    transform: none;
    animation: none;
    transition: none;
  }

  .system-pulse {
    animation: none;
  }

  .system-node,
  .thesis-grid article,
  .route-cards article,
  .partner-logos article,
  .copilot-capabilities article,
  .public-signal-cards article,
  .event-list article,
  .featured-event,
  .impact-card,
  .home-event {
    transition: none;
  }
}

.route-section {
  background: #f4f8fc;
}

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

.route-cards article {
  min-height: 280px;
  background: #fff;
}

.partner-section {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(480px, 1.08fr);
  gap: clamp(34px, 5vw, 72px);
  align-items: center;
  background: #fff;
}

.partner-copy {
  max-width: 760px;
}

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

.partner-logos article {
  min-height: 240px;
  display: grid;
  align-content: start;
  gap: 12px;
}

.partner-logos img {
  width: 100%;
  height: 80px;
  object-fit: contain;
  object-position: left center;
}

.partner-logos strong {
  color: #0b1220;
  font-size: 22px;
}

.partner-logos span {
  color: #64748b;
  line-height: 1.55;
}

.public-signals-section {
  background: #f4f8fc;
}

.public-signal-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  max-width: var(--content);
  margin: 0 auto;
}

.public-signal-cards-featured {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.public-signal-cards article {
  min-width: 0;
  overflow: hidden;
  background: #fff;
  border: 1px solid #dbe5ef;
  border-radius: 8px;
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}

.public-signal-cards .signal-text-card {
  min-height: 100%;
  display: grid;
  align-content: end;
  color: #fff;
  background:
    radial-gradient(circle at 82% 18%, rgba(124, 236, 255, 0.18), transparent 32%),
    linear-gradient(135deg, #07111f 0%, #111827 58%, #0b1726 100%);
  border-color: rgba(124, 236, 255, 0.18);
}

.public-signal-cards .signal-text-card div {
  padding: clamp(28px, 4vw, 44px);
}

.public-signal-cards .signal-text-card span {
  color: #7cecff;
}

.public-signal-cards .signal-text-card h3 {
  color: #fff;
}

.public-signal-cards .signal-text-card p {
  color: rgba(255, 255, 255, 0.72);
}

.public-signal-cards .signal-text-card a {
  color: #7cecff;
}

.event-announcement {
  display: block;
  color: #fff;
  background:
    radial-gradient(circle at 80% 20%, rgba(124, 236, 255, 0.2), transparent 34%),
    linear-gradient(135deg, #07111f 0%, #101827 62%, #0b1726 100%);
  border-color: rgba(124, 236, 255, 0.18);
}

.event-announcement > div {
  padding: clamp(28px, 4.6vw, 56px);
}

.event-announcement span {
  color: #7cecff;
}

.event-announcement h3 {
  color: #fff;
}

.event-announcement p {
  color: rgba(255, 255, 255, 0.72);
}

.event-announcement .button.secondary {
  color: #07111f;
  background: #fff;
  border-color: rgba(255, 255, 255, 0.24);
}

.data-foundation-section {
  background: #fff;
}

.data-foundation-section .section-heading,
.data-loop-copy {
  max-width: 980px;
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.data-layers {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: var(--content);
  margin: 0 auto;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.data-layers article {
  min-height: 330px;
  padding: clamp(26px, 3vw, 38px);
  background: #fff;
}

.data-layers span,
.data-loop-steps span {
  display: block;
  margin-bottom: 54px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.data-layers h3 {
  font-size: clamp(24px, 2.2vw, 34px);
}

.data-layers p {
  margin-bottom: 0;
}

.data-object-section {
  background: #f4f8fc;
}

.data-object-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
  max-width: var(--content);
  margin: 0 auto;
  overflow: hidden;
  background: #dbe5ef;
  border: 1px solid #dbe5ef;
  border-radius: 8px;
}

.data-object-grid div {
  min-height: 168px;
  display: grid;
  align-content: space-between;
  padding: 22px;
  background: #fff;
}

.data-object-grid strong {
  color: #0b1220;
  font-size: 22px;
}

.data-object-grid span {
  color: #64748b;
  font-size: 14px;
  line-height: 1.55;
}

.data-pipeline-section {
  background: #fff;
}

.data-pipeline,
.policy-task-grid,
.physical-grid {
  display: grid;
  gap: 16px;
  max-width: var(--content);
  margin: 0 auto;
}

.data-pipeline {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.data-pipeline article,
.physical-grid article,
.policy-task-grid article {
  min-width: 0;
  padding: 26px;
  background: #fff;
  border: 1px solid #dbe5ef;
  border-radius: 8px;
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}

.data-pipeline article {
  min-height: 260px;
  background: #f8fafc;
}

.data-pipeline span,
.physical-grid span,
.policy-task-grid span {
  display: block;
  margin-bottom: 44px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.data-pipeline h3,
.physical-grid h3 {
  font-size: clamp(22px, 2vw, 30px);
}

.data-pipeline p,
.physical-grid p,
.policy-task-grid p {
  margin-bottom: 0;
  font-size: 15px;
}

.data-loop-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(560px, 1.1fr);
  gap: clamp(34px, 5vw, 72px);
  align-items: center;
  color: #fff;
  background:
    radial-gradient(circle at 78% 20%, rgba(124, 236, 255, 0.14), transparent 30%),
    linear-gradient(180deg, #07111f, #0d1420);
}

.product-page main > .data-loop-section {
  color: #fff;
  background:
    radial-gradient(circle at 78% 20%, rgba(124, 236, 255, 0.14), transparent 30%),
    linear-gradient(180deg, #07111f, #0d1420);
}

.physical-understanding-section {
  background:
    radial-gradient(circle at 70% 20%, rgba(0, 184, 255, 0.08), transparent 28%),
    #f4f8fc;
}

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

.physical-grid article {
  min-height: 300px;
}

.policy-task-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 18px;
}

.policy-task-grid article {
  min-height: 210px;
}

.policy-task-grid strong {
  display: block;
  margin-bottom: 12px;
  color: #0b1220;
  font-size: 21px;
  line-height: 1.22;
}

.data-loop-copy {
  margin: 0;
  text-align: left;
}

.data-loop-copy h2,
.data-loop-copy p {
  color: #fff;
}

.data-loop-copy p {
  color: rgba(255, 255, 255, 0.7);
}

.data-loop-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
}

.data-loop-steps div {
  min-height: 180px;
  display: grid;
  align-content: space-between;
  padding: 24px;
  background: rgba(255, 255, 255, 0.055);
}

.data-loop-steps span {
  margin-bottom: 38px;
  color: #7cecff;
}

.data-loop-steps strong {
  color: #fff;
  font-size: clamp(22px, 2vw, 30px);
  line-height: 1.16;
}

.public-signal-cards img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
}

.public-signal-cards div {
  padding: 24px;
}

.public-signal-cards span {
  display: block;
  margin-bottom: 14px;
  color: #0b64d8;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.public-signal-cards h3 {
  color: #0b1220;
  font-size: clamp(22px, 2.1vw, 30px);
}

.public-signal-cards p {
  margin-bottom: 18px;
  color: #334155;
  font-size: 15px;
}

.public-signal-cards a {
  color: #0b64d8;
  font-size: 14px;
  font-weight: 850;
}

.vision-section {
  padding-top: 0;
  background: #fff;
}

.vision-panel {
  max-width: var(--content);
  margin: 0 auto;
  overflow: hidden;
  background: #fff;
  border: 1px solid #dbe5ef;
  border-radius: 8px;
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}

.vision-panel img {
  width: 100%;
  display: block;
}

@media (max-width: 1120px) {
  .product-hero {
    min-height: 940px;
    align-items: start;
    padding-top: 118px;
  }

  .product-hero-image {
    top: auto;
    bottom: 0;
    width: 100%;
    height: 58%;
    object-position: center bottom;
  }

  .product-hero-shade {
    background:
      linear-gradient(180deg, rgba(7, 9, 13, 0.98) 0%, rgba(7, 9, 13, 0.9) 44%, rgba(7, 9, 13, 0.26) 72%, rgba(7, 9, 13, 0.76) 100%);
  }

  .product-system-section,
  .partner-section {
    grid-template-columns: 1fr;
  }

  .thesis-grid,
  .route-cards,
  .partner-logos,
  .copilot-capabilities,
  .data-pipeline,
  .physical-grid,
  .policy-task-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  .product-home .site-nav,
  .product-page .site-nav {
    background: rgba(7, 9, 13, 0.98);
    border-bottom-color: rgba(255, 255, 255, 0.1);
  }

  .product-home .nav-toggle,
  .product-page .nav-toggle {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
  }

  .product-home .nav-toggle span,
  .product-page .nav-toggle span {
    background: #fff;
  }

  .product-hero {
    min-height: 900px;
    padding: 104px 20px 44px;
  }

  .product-hero h1 {
    font-size: clamp(42px, 12vw, 64px);
  }

  .hero-metrics,
  .thesis-grid,
  .route-cards,
  .partner-logos,
  .public-signal-cards,
  .copilot-capabilities,
  .data-pipeline,
  .physical-grid,
  .policy-task-grid {
    grid-template-columns: 1fr;
  }

  .product-section,
  .product-system-section {
    padding: 76px 20px;
  }

  .product-page .page-hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 112px 20px 76px;
  }

  .product-page .page-hero .eyebrow,
  .product-page .page-hero h1,
  .product-page .page-hero > p:not(.eyebrow) {
    grid-column: 1;
  }

  .system-diagram {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .system-diagram::before,
  .system-diagram::after,
  .system-pulse,
  .system-node::before,
  .system-node::after {
    display: none;
  }

  .system-core {
    grid-column: auto;
    grid-row: auto;
    min-height: 220px;
  }

  .system-node,
  .system-node.input,
  .system-node.output {
    grid-column: auto;
    grid-row: auto;
    min-height: 82px;
    text-align: left;
  }
}

@media (max-width: 520px) {
  .product-home .language-switch,
  .product-page .language-switch {
    display: none;
  }

  .product-home .footer-brand,
  .product-page .footer-brand {
    align-items: flex-start;
    flex-direction: column;
  }

  .product-home .zrbot-widget {
    display: none;
  }

  .footer-brand p {
    overflow-wrap: anywhere;
  }

  .product-actions,
  .product-actions .button {
    width: 100%;
  }

  .product-hero {
    min-height: 840px;
  }

  .product-hero-image {
    height: 46%;
  }
}

@media (max-width: 1120px) {
  .data-layers,
  .data-object-grid,
  .data-loop-section {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .data-loop-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .public-signal-cards-featured,
  .data-layers,
  .data-object-grid,
  .data-loop-steps {
    grid-template-columns: 1fr;
  }

  .data-layers article,
  .data-object-grid div,
  .data-loop-steps div {
    min-height: auto;
  }
}