:root {
  --ink: #17202f;
  --ink-strong: #0b111d;
  --muted: #5b6677;
  --line: #dfe6ee;
  --surface: #ffffff;
  --soft: #f4f8fb;
  --dark: #101826;
  --dark-2: #182231;
  --cyan: #19c7f3;
  --cyan-2: #0ea5c6;
  --lime: #90c83d;
  --amber: #efb340;
  --rose: #e85d75;
  --radius: 8px;
  --shadow: 0 18px 48px rgba(16, 24, 38, 0.14);
  --max: 1180px;
  --header-height: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;
  line-height: 1.7;
  background: var(--surface);
  letter-spacing: 0;
}

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

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

p,
h1,
h2,
h3,
dl,
dd {
  margin: 0;
}

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

.container {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  height: var(--header-height);
  min-height: var(--header-height);
  padding: 0 max(20px, calc((100vw - var(--max)) / 2));
  color: #f8fbff;
  background: rgba(10, 16, 27, 0.42);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(18px);
  transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled,
body:not(:has(.hero)) .site-header {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.92);
  border-color: rgba(23, 32, 47, 0.1);
  box-shadow: 0 10px 30px rgba(16, 24, 38, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
  max-width: min(48vw, 520px);
}

.brand-logo {
  width: 86px;
  height: 40px;
  flex: 0 0 86px;
  object-fit: contain;
  filter: drop-shadow(0 8px 16px rgba(25, 199, 243, 0.22));
}

.brand strong {
  display: block;
  font-size: 1rem;
  line-height: 1.12;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand small {
  display: block;
  margin-top: 2px;
  color: currentColor;
  font-size: 0.65rem;
  line-height: 1.2;
  opacity: 0.72;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  position: relative;
  padding: 9px 13px;
  border-radius: 6px;
  color: currentColor;
  font-size: 0.95rem;
  opacity: 0.86;
  transition: opacity 160ms ease, background 160ms ease, color 160ms ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  opacity: 1;
  background: rgba(25, 199, 243, 0.14);
  color: var(--cyan);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid currentColor;
  border-radius: 8px;
  color: currentColor;
  background: transparent;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
  transition: transform 160ms ease;
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.hero {
  min-height: 720px;
  position: relative;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: #ffffff;
  background: var(--dark);
}

.hero-bg,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-bg {
  object-fit: cover;
  object-position: center;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(8, 13, 22, 0.9) 0%, rgba(8, 13, 22, 0.74) 34%, rgba(8, 13, 22, 0.23) 72%, rgba(8, 13, 22, 0.12) 100%),
    linear-gradient(0deg, rgba(8, 13, 22, 0.78), transparent 42%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding-top: 96px;
  padding-bottom: 56px;
}

.eyebrow {
  margin-bottom: 14px;
  color: var(--cyan-2);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
}

.hero .eyebrow,
.dark-lab .eyebrow {
  color: #84e9ff;
}

.hero h1 {
  font-size: 4.6rem;
  line-height: 1.02;
  font-weight: 800;
  max-width: 680px;
}

.hero-copy {
  max-width: 660px;
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.16rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 700;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

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

.btn.primary {
  color: #07111f;
  background: #78e7ff;
  box-shadow: 0 14px 28px rgba(25, 199, 243, 0.24);
}

.btn.ghost {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.08);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 720px;
  margin-top: 56px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(16px);
}

.hero-metrics div {
  min-height: 108px;
  padding: 20px;
  background: rgba(8, 13, 22, 0.38);
}

.hero-metrics dt {
  color: #ffffff;
  font-size: 1.7rem;
  font-weight: 800;
  line-height: 1.2;
}

.hero-metrics dd {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.95rem;
}

.section {
  padding: 96px 0;
  scroll-margin-top: calc(var(--header-height) + 20px);
}

.compact-band {
  padding: 58px 0;
  background: #f7fafc;
  border-bottom: 1px solid var(--line);
}

.split-intro {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 72px;
  align-items: end;
}

h1,
h2,
h3 {
  color: var(--ink-strong);
  line-height: 1.18;
}

.hero h1,
.dark-lab h2,
.dark-lab h3 {
  color: #ffffff;
}

h2 {
  font-size: 2.25rem;
}

h3 {
  font-size: 1.2rem;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 38px;
}

.section-heading.narrow {
  max-width: 680px;
}

.section-heading p,
.split-intro p,
.sticky-copy p,
.service-note p,
.visual-layout p,
.cloud-panel p,
.about-card p,
.vision-panel p,
.sub-hero p,
.contact-main p,
.next-step p {
  color: var(--muted);
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 18px;
}

.solution-card,
.feature-stack article,
.capability-grid article,
.about-card,
.vision-panel,
.contact-main,
.contact-aside,
.visual-cards article,
.cloud-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.solution-card {
  position: relative;
  min-height: 340px;
  padding: 26px;
  overflow: hidden;
  box-shadow: 0 12px 32px rgba(16, 24, 38, 0.06);
}

.solution-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--card-color);
}

.solution-card .card-index {
  display: block;
  color: var(--card-color);
  font-size: 0.9rem;
  font-weight: 800;
}

.solution-card h3 {
  margin-top: 24px;
  font-size: 1.06rem;
  white-space: nowrap;
}

.solution-card p {
  margin-top: 15px;
  color: var(--muted);
  font-size: 0.98rem;
}

.solution-card a {
  position: absolute;
  left: 26px;
  bottom: 24px;
  color: var(--ink-strong);
  font-weight: 800;
}

.solution-card a::after,
.text-link::after {
  content: ">";
  margin-left: 8px;
  color: var(--card-color, var(--cyan));
}

.accent-cyan {
  --card-color: var(--cyan);
}

.accent-lime {
  --card-color: var(--lime);
}

.accent-amber {
  --card-color: var(--amber);
}

.accent-rose {
  --card-color: var(--rose);
}

.dark-lab {
  color: rgba(255, 255, 255, 0.8);
  background:
    linear-gradient(135deg, #101826 0%, #1a2534 64%, #10221f 100%);
}

.dark-lab p {
  color: rgba(255, 255, 255, 0.74);
}

.lab-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 80px;
  align-items: center;
}

.lab-layout > div:first-child {
  max-width: 520px;
}

.lab-layout p {
  margin-top: 20px;
}

.text-link {
  display: inline-block;
  margin-top: 28px;
  color: #ffffff;
  font-weight: 800;
}

.orbit-panel {
  position: relative;
  min-height: 0;
  border: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: transparent;
}

.orbit-panel::before {
  content: none;
}

.orbit-panel::after {
  content: none;
}

.delivery-cycle-img {
  width: 100%;
  aspect-ratio: 960 / 560;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 22px 46px rgba(0, 0, 0, 0.22);
}

.scenario-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.scenario-strip span,
.prep-grid span {
  min-height: 74px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink-strong);
  font-weight: 800;
  background: linear-gradient(180deg, #ffffff, #f6fafc);
}

.sub-hero {
  padding: 164px 0 88px;
  color: #ffffff;
  background:
    linear-gradient(110deg, rgba(10, 16, 27, 0.96), rgba(16, 34, 31, 0.9)),
    url("../images/hero-technology.png") center / cover;
}

.sub-hero .container {
  max-width: 920px;
}

.sub-hero h1 {
  color: #ffffff;
  max-width: 860px;
  font-size: 3.25rem;
}

.sub-hero p:last-child {
  max-width: 760px;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.08rem;
}

.detail-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 64px;
  align-items: start;
}

.detail-grid.reverse {
  grid-template-columns: 1.15fr 0.85fr;
}

.sticky-copy {
  position: sticky;
  top: 116px;
}

.sticky-copy p {
  margin-top: 18px;
}

.feature-stack {
  display: grid;
  gap: 16px;
}

.feature-stack article {
  padding: 26px;
  box-shadow: 0 10px 26px rgba(16, 24, 38, 0.06);
}

.feature-stack p,
.capability-grid p,
.visual-cards span,
.culture-grid p,
.timeline p,
.contact-list dd,
.check-list,
.prep-grid,
.cloud-panel p {
  color: var(--muted);
}

.feature-stack p {
  margin-top: 8px;
}

.pale-panel {
  background: var(--soft);
}

.sensor-map {
  min-height: 420px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  align-content: center;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(25, 199, 243, 0.12), rgba(144, 200, 61, 0.1)),
    #ffffff;
}

.sensor-map span {
  min-height: 108px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(23, 32, 47, 0.12);
  border-radius: var(--radius);
  color: var(--ink-strong);
  font-weight: 800;
  background: rgba(255, 255, 255, 0.78);
}

.visual-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 64px;
  align-items: start;
}

.visual-layout.reverse {
  grid-template-columns: 1.15fr 0.85fr;
}

.visual-layout p {
  margin-top: 18px;
}

.visual-cards {
  display: grid;
  gap: 14px;
}

.visual-cards article {
  padding: 26px;
  box-shadow: 0 10px 26px rgba(16, 24, 38, 0.06);
}

.visual-cards strong {
  display: block;
  color: var(--ink-strong);
  font-size: 1.08rem;
}

.visual-cards span {
  display: block;
  margin-top: 6px;
}

.cloud-panel {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 48px;
  align-items: center;
  padding: 34px;
  border-color: rgba(25, 199, 243, 0.32);
  box-shadow: var(--shadow);
}

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

.capability-grid article {
  min-height: 260px;
  padding: 26px;
}

.capability-grid span {
  color: var(--cyan-2);
  font-weight: 900;
}

.capability-grid h2 {
  margin-top: 28px;
  font-size: 1.25rem;
}

.capability-grid p {
  margin-top: 14px;
}

.process-layout {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 54px;
  align-items: start;
}

.process-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-list li {
  display: grid;
  grid-template-columns: 64px 0.7fr 1.3fr;
  gap: 18px;
  align-items: center;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
}

.process-list span {
  color: #84e9ff;
  font-weight: 900;
}

.process-list strong {
  color: #ffffff;
}

.process-list p {
  margin: 0;
}

.service-note {
  max-width: 840px;
}

.service-note p {
  margin-top: 18px;
  font-size: 1.08rem;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 24px;
  align-items: stretch;
}

.about-card,
.vision-panel {
  padding: 32px;
}

.about-card p {
  margin-top: 18px;
}

.vision-panel {
  color: #ffffff;
  background:
    linear-gradient(135deg, rgba(25, 199, 243, 0.86), rgba(16, 24, 38, 0.95)),
    var(--dark);
}

.vision-panel span {
  display: block;
  color: rgba(255, 255, 255, 0.76);
  font-weight: 800;
}

.vision-panel strong {
  display: block;
  margin-top: 24px;
  color: #ffffff;
  font-size: 2rem;
  line-height: 1.18;
}

.vision-panel p {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.78);
}

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

.culture-grid article {
  padding: 4px 28px 4px 0;
  border-right: 1px solid var(--line);
}

.culture-grid article:last-child {
  border-right: 0;
}

.culture-grid p {
  margin-top: 10px;
}

.timeline {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 40px;
  align-items: start;
}

.timeline article {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 28px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
}

.timeline time {
  color: var(--cyan-2);
  font-weight: 900;
}

.timeline time:empty {
  display: none;
}

.timeline time:empty + div {
  grid-column: 1 / -1;
}

.timeline p {
  margin-top: 8px;
}

.contact-section {
  padding-bottom: 72px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 22px;
}

.contact-main,
.contact-aside {
  padding: 32px;
}

.contact-list {
  margin-top: 28px;
  display: grid;
  gap: 18px;
}

.contact-list div {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.contact-list dt {
  color: var(--ink-strong);
  font-weight: 900;
}

.contact-list dd {
  margin-top: 5px;
}

.contact-aside {
  background: #101826;
  border-color: #101826;
}

.contact-aside h2 {
  color: #ffffff;
  font-size: 1.45rem;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  color: rgba(255, 255, 255, 0.78);
}

.check-list li {
  padding-left: 26px;
  position: relative;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--lime);
}

.next-step {
  max-width: 860px;
}

.prep-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
  margin-top: 28px;
}

.prep-grid span {
  min-height: 68px;
}

.site-footer {
  padding: 38px 0;
  color: rgba(255, 255, 255, 0.72);
  background: #0b111d;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  align-items: start;
}

.footer-brand {
  color: #ffffff;
  max-width: 100%;
  transform: translateY(10px);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  justify-content: flex-end;
  margin-top: 0;
}

.footer-links a:hover,
.footer-links a[aria-current="page"],
.footer-record a:hover {
  color: #84e9ff;
}

.footer-record {
  display: grid;
  gap: 10px;
  justify-items: end;
  text-align: right;
  line-height: 1.45;
}

@media (max-width: 1020px) {
  :root {
    --header-height: 68px;
  }

  .site-header {
    height: var(--header-height);
    min-height: var(--header-height);
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 20px;
    right: 20px;
    display: grid;
    gap: 4px;
    padding: 12px;
    border: 1px solid rgba(23, 32, 47, 0.1);
    border-radius: var(--radius);
    color: var(--ink);
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 160ms ease, transform 160ms ease;
  }

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

  .hero {
    min-height: 680px;
  }

  .hero h1 {
    font-size: 3.5rem;
  }

  .solution-grid,
  .capability-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .split-intro,
  .lab-layout,
  .detail-grid,
  .detail-grid.reverse,
  .visual-layout,
  .visual-layout.reverse,
  .cloud-panel,
  .process-layout,
  .about-grid,
  .timeline,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .sticky-copy {
    position: static;
  }

  .detail-grid.reverse .sticky-copy {
    order: -1;
  }

  .visual-layout.reverse .sticky-copy {
    order: -1;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 22px;
    align-items: start;
  }

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

  .footer-record {
    justify-items: start;
    text-align: left;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(calc(100% - 28px), var(--max));
  }

  .brand small {
    display: none;
  }

  .brand {
    gap: 8px;
    max-width: calc(100vw - 82px);
  }

  .brand-logo {
    width: 52px;
    height: 30px;
    flex-basis: 52px;
  }

  .brand strong {
    font-size: 0.88rem;
  }

  .site-header {
    padding-left: 14px;
    padding-right: 14px;
  }

  .hero {
    min-height: auto;
  }

  .hero-inner {
    padding-top: 132px;
    padding-bottom: 42px;
  }

  .hero h1 {
    font-size: 2.55rem;
  }

  .hero-copy,
  .sub-hero p:last-child,
  .service-note p {
    font-size: 1rem;
  }

  .hero-actions {
    display: grid;
  }

  .btn {
    width: 100%;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
    margin-top: 34px;
  }

  .hero-metrics div {
    min-height: 88px;
  }

  .section {
    padding: 68px 0;
  }

  .compact-band {
    padding: 46px 0;
  }

  h2 {
    font-size: 1.8rem;
  }

  .sub-hero {
    padding: 128px 0 66px;
  }

  .sub-hero h1 {
    font-size: 2.05rem;
    line-height: 1.16;
  }

  .solution-grid,
  .capability-grid,
  .culture-grid,
  .sensor-map,
  .scenario-strip,
  .prep-grid {
    grid-template-columns: 1fr;
  }

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

  .solution-card h3 {
    margin-top: 18px;
    font-size: 1.08rem;
  }

  .orbit-panel {
    min-height: 0;
  }

  .orbit-panel::before {
    inset: 34px;
  }

  .orbit-panel::after {
    inset: 74px;
  }

  .orbit-core {
    width: 96px;
    height: 68px;
  }

  .orbit-node {
    width: 70px;
    height: 42px;
    font-size: 0.9rem;
  }

  .process-list li,
  .timeline article {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .cloud-panel,
  .about-card,
  .vision-panel,
  .contact-main,
  .contact-aside,
  .sensor-map {
    padding: 24px;
  }

  .culture-grid article {
    padding-right: 0;
    padding-bottom: 20px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .culture-grid article:last-child {
    border-bottom: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}