:root {
  color-scheme: dark;
  --bg: #050816;
  --panel: rgba(12, 18, 38, 0.78);
  --panel-strong: rgba(16, 28, 58, 0.9);
  --text: #f7fbff;
  --muted: #9fb0ca;
  --soft: #c8d7ec;
  --line: rgba(133, 170, 255, 0.22);
  --cyan: #24e7ff;
  --blue: #4d7dff;
  --green: #31f2a6;
  --rose: #ff5c9a;
  --gold: #ffd166;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.46);
}

* {
  box-sizing: border-box;
}

html {
  overflow-x: clip;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 18% 12%, rgba(36, 231, 255, 0.24), transparent 28rem),
    radial-gradient(circle at 76% 8%, rgba(255, 92, 154, 0.18), transparent 30rem),
    linear-gradient(135deg, #050816 0%, #071124 46%, #091b2a 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  overflow-x: clip;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -3;
  content: "";
  background-image:
    linear-gradient(rgba(77, 125, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(77, 125, 255, 0.1) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 78%);
}

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

.lang-en {
  display: none !important;
}

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

body[data-lang="en"] .lang-en {
  display: inline !important;
}

.neural-canvas {
  position: fixed;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  opacity: 0.9;
}

.noise {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(transparent 0 50%, rgba(255, 255, 255, 0.025) 50%),
    radial-gradient(circle at center, transparent, rgba(0, 0, 0, 0.62));
  background-size: 100% 4px, auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 18px clamp(18px, 4.6vw, 70px);
  border-bottom: 1px solid rgba(132, 182, 255, 0.18);
  background: rgba(5, 8, 22, 0.72);
  backdrop-filter: blur(22px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #ffffff;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(36, 231, 255, 0.6);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(36, 231, 255, 0.28), rgba(49, 242, 166, 0.12));
  box-shadow: 0 0 28px rgba(36, 231, 255, 0.26);
  color: var(--cyan);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(14px, 2.4vw, 30px);
  color: var(--soft);
  font-size: 14px;
}

.site-nav a,
.site-footer a {
  transition: color 180ms ease;
}

.site-nav a:hover,
.site-footer a:hover {
  color: var(--cyan);
}

.nav-cta,
.primary-btn,
.secondary-btn,
.lang-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 8px;
  font-weight: 760;
  white-space: nowrap;
}

.nav-cta,
.primary-btn {
  gap: 10px;
  padding: 0 18px;
  border: 1px solid rgba(36, 231, 255, 0.55);
  background: linear-gradient(135deg, #24e7ff, #4d7dff 54%, #7b61ff);
  color: #03101c;
  box-shadow: 0 0 32px rgba(36, 231, 255, 0.28);
}

.secondary-btn {
  padding: 0 18px;
  border: 1px solid rgba(180, 206, 255, 0.26);
  background: rgba(255, 255, 255, 0.06);
  color: #eaf4ff;
}

.lang-toggle {
  min-width: 50px;
  padding: 0 14px;
  border: 1px solid rgba(180, 206, 255, 0.28);
  background: rgba(255, 255, 255, 0.05);
  color: #eaf4ff;
  cursor: pointer;
  font: inherit;
  font-size: 13px;
}

.lang-toggle:hover {
  border-color: rgba(36, 231, 255, 0.58);
  color: var(--cyan);
}

main {
  width: min(1200px, calc(100% - 36px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.78fr);
  gap: clamp(34px, 5vw, 72px);
  align-items: center;
  min-height: calc(100svh - 78px);
  padding: clamp(56px, 8vw, 104px) 0 clamp(36px, 6vw, 72px);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 720px;
  font-size: clamp(42px, 5.7vw, 76px);
  line-height: 1.02;
  letter-spacing: 0;
  text-wrap: balance;
  background: linear-gradient(120deg, #ffffff 0%, #dff8ff 44%, #89f7ff 76%, #ffffff 100%);
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

h2 {
  max-width: 760px;
  font-size: clamp(32px, 4.4vw, 56px);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  font-size: 22px;
  line-height: 1.22;
}

.hero-lede,
.section-head p,
.gateway-panel p,
.final-cta p {
  max-width: 760px;
  color: var(--soft);
  font-size: clamp(16px, 1.7vw, 19px);
}

.hero-lede {
  margin-top: 24px;
}

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

.signal-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 650px;
  margin-top: 34px;
}

.signal-row div {
  min-height: 92px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.055);
  backdrop-filter: blur(18px);
}

.signal-row strong {
  display: block;
  color: #ffffff;
  font-size: clamp(25px, 3vw, 34px);
  line-height: 1;
}

.signal-row span {
  display: block;
  margin-top: 9px;
  color: var(--muted);
  font-size: 13px;
}

.hero-console {
  position: relative;
  min-height: 610px;
  padding: 22px;
  border: 1px solid rgba(133, 170, 255, 0.28);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(15, 24, 55, 0.94), rgba(5, 14, 32, 0.82)),
    radial-gradient(circle at 50% 35%, rgba(36, 231, 255, 0.18), transparent 22rem);
  box-shadow: var(--shadow), inset 0 0 54px rgba(36, 231, 255, 0.08);
  overflow: hidden;
}

.hero-console::before,
.hero-console::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.hero-console::before {
  inset: 56px 22px 150px;
  border: 1px solid rgba(36, 231, 255, 0.2);
  border-radius: 50%;
  animation: pulse-ring 4.6s ease-in-out infinite;
}

.hero-console::after {
  inset: auto -20% 112px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(36, 231, 255, 0.85), transparent);
  animation: scan 3.8s ease-in-out infinite;
}

.console-top {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.console-top span {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--rose);
}

.console-top span:nth-child(2) {
  background: var(--gold);
}

.console-top span:nth-child(3) {
  background: var(--green);
}

.console-top strong {
  margin-left: auto;
  color: var(--soft);
  font-size: 12px;
}

.mesh-orbit {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 382px;
  place-items: center;
  margin-top: 28px;
}

.mesh-orbit::before,
.mesh-orbit::after {
  position: absolute;
  content: "";
  border: 1px solid rgba(36, 231, 255, 0.18);
  border-radius: 50%;
}

.mesh-orbit::before {
  width: min(76%, 330px);
  aspect-ratio: 1;
  animation: rotate-slow 18s linear infinite;
  border-style: dashed;
}

.mesh-orbit::after {
  width: min(100%, 430px);
  aspect-ratio: 1;
  animation: rotate-slow 26s linear infinite reverse;
}

.core-node,
.orbit-node {
  position: absolute;
  display: grid;
  place-items: center;
  border: 1px solid rgba(36, 231, 255, 0.45);
  border-radius: 8px;
  background: rgba(5, 15, 33, 0.82);
  box-shadow: 0 0 32px rgba(36, 231, 255, 0.18);
}

.core-node {
  width: 174px;
  height: 174px;
  padding: 20px;
  background:
    radial-gradient(circle at 50% 12%, rgba(49, 242, 166, 0.28), transparent 58%),
    rgba(6, 18, 38, 0.94);
  animation: core-breathe 3.4s ease-in-out infinite;
}

.core-node span {
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
}

.core-node strong {
  color: #ffffff;
  font-size: 25px;
  text-align: center;
}

.orbit-node {
  width: 96px;
  min-height: 42px;
  color: #eaf9ff;
  font-size: 13px;
  font-weight: 800;
}

.node-a {
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
}

.node-b {
  right: 10px;
  top: 45%;
}

.node-c {
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
}

.node-d {
  left: 10px;
  top: 45%;
}

.console-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.console-grid div {
  min-height: 86px;
  padding: 15px;
  border: 1px solid rgba(133, 170, 255, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.055);
}

.console-grid span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.console-grid strong {
  display: block;
  margin-top: 8px;
  color: #ffffff;
  font-size: 17px;
}

.ticker {
  display: flex;
  gap: 12px;
  width: calc(100% + 36px);
  margin-left: -18px;
  padding: 18px 0;
  border-block: 1px solid rgba(133, 170, 255, 0.18);
  background: rgba(3, 7, 19, 0.58);
  overflow: hidden;
  contain: paint;
}

.ticker-track {
  display: flex;
  flex: 0 0 auto;
  gap: 12px;
  min-width: max-content;
  animation: ticker 32s linear infinite;
}

.ticker span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 18px;
  border: 1px solid rgba(133, 170, 255, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.055);
  color: #dceaff;
  font-size: 14px;
}

.section {
  padding: clamp(72px, 10vw, 122px) 0 0;
}

.section-head {
  display: grid;
  gap: 14px;
  margin-bottom: 30px;
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.model-card,
.product-lanes article,
.gateway-panel,
.final-cta {
  border: 1px solid rgba(133, 170, 255, 0.22);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(20px);
}

.model-card {
  position: relative;
  min-height: 232px;
  padding: 24px;
  overflow: hidden;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.model-card::after {
  position: absolute;
  right: -34px;
  bottom: -42px;
  width: 122px;
  height: 122px;
  border: 1px solid rgba(36, 231, 255, 0.18);
  border-radius: 50%;
  content: "";
}

.model-card:hover,
.product-lanes article:hover {
  transform: translateY(-4px);
  border-color: rgba(36, 231, 255, 0.55);
  background: rgba(14, 29, 62, 0.86);
}

.model-card.hot {
  background:
    linear-gradient(145deg, rgba(36, 231, 255, 0.18), rgba(77, 125, 255, 0.12)),
    var(--panel-strong);
}

.model-card > span {
  color: var(--green);
  font-size: 13px;
  font-weight: 820;
}

.model-card h3,
.product-lanes h3 {
  margin-top: 14px;
}

.model-card p,
.product-lanes p,
.capability-list span {
  margin-top: 12px;
  color: var(--muted);
}

.product-lanes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.product-lanes article {
  min-height: 268px;
  padding: 28px;
}

.lane-icon {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 1px solid rgba(36, 231, 255, 0.38);
  border-radius: 8px;
  background: rgba(36, 231, 255, 0.1);
  color: var(--cyan);
  font-size: 24px;
}

.gateway-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1.08fr);
  gap: clamp(24px, 4vw, 48px);
  padding: clamp(26px, 4.4vw, 54px);
  background:
    linear-gradient(135deg, rgba(12, 26, 58, 0.92), rgba(6, 17, 35, 0.86)),
    radial-gradient(circle at 90% 20%, rgba(49, 242, 166, 0.16), transparent 24rem);
}

.capability-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.capability-list div {
  min-height: 112px;
  padding: 18px;
  border: 1px solid rgba(133, 170, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
}

.capability-list strong {
  display: block;
  color: #ffffff;
  font-size: 18px;
}

.capability-list span {
  display: block;
}

.final-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin: clamp(72px, 10vw, 120px) 0 54px;
  padding: clamp(28px, 4.4vw, 52px);
  background:
    linear-gradient(120deg, rgba(36, 231, 255, 0.14), rgba(255, 92, 154, 0.1)),
    rgba(10, 18, 40, 0.86);
}

.final-cta p {
  margin-top: 14px;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 12px 22px;
  padding: 26px 20px 32px;
  border-top: 1px solid rgba(133, 170, 255, 0.18);
  color: var(--muted);
  font-size: 13px;
}

.police-record {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  line-height: 1;
  vertical-align: middle;
}

.police-record img {
  width: 14px !important;
  height: 15px !important;
  max-width: 14px;
  max-height: 15px;
  object-fit: contain;
  flex: 0 0 auto;
}

@keyframes ticker {
  to {
    transform: translateX(calc(-100% - 12px));
  }
}

@keyframes pulse-ring {
  50% {
    transform: scale(1.035);
    border-color: rgba(49, 242, 166, 0.42);
  }
}

@keyframes scan {
  0%,
  100% {
    transform: translateY(-230px);
    opacity: 0;
  }
  45%,
  65% {
    opacity: 1;
  }
  100% {
    transform: translateY(72px);
  }
}

@keyframes rotate-slow {
  to {
    transform: rotate(360deg);
  }
}

@keyframes core-breathe {
  50% {
    box-shadow: 0 0 54px rgba(36, 231, 255, 0.34);
    transform: scale(1.025);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}

@media (max-width: 980px) {
  .site-header {
    flex-wrap: wrap;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero,
  .gateway-panel {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 0;
  }

  .hero-console {
    min-height: 560px;
  }

  .model-grid,
  .product-lanes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  main {
    width: min(100% - 28px, 1200px);
  }

  .site-header {
    padding: 14px;
  }

  .brand {
    font-size: 18px;
  }

  .nav-cta {
    min-height: 40px;
    padding: 0 14px;
  }

  .lang-toggle {
    min-height: 40px;
  }

  h1 {
    font-size: clamp(36px, 11vw, 50px);
  }

  .hero {
    padding-top: 42px;
  }

  .signal-row,
  .model-grid,
  .product-lanes,
  .capability-list,
  .console-grid {
    grid-template-columns: 1fr;
  }

  .hero-console {
    min-height: 500px;
    padding: 18px;
  }

  .mesh-orbit {
    min-height: 300px;
  }

  .core-node {
    width: 136px;
    height: 136px;
  }

  .core-node strong {
    font-size: 20px;
  }

  .orbit-node {
    width: 82px;
    font-size: 12px;
  }

  .gateway-panel,
  .final-cta {
    padding: 24px;
  }

  .final-cta {
    align-items: flex-start;
    flex-direction: column;
  }
}