:root {
  --ink: #0b1220;
  --navy: #101827;
  --slate: #4a5a6f;
  --muted: #6f7f93;
  --line: #dbe5ef;
  --mist: #f3f8fb;
  --white: #ffffff;
  --blue: #0ea5e9;
  --cyan: #22d3ee;
  --green: #34d399;
  --teal: #14b8a6;
  --gold: #f6b84b;
  --shadow: 0 24px 70px rgba(11, 18, 32, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, "Avenir Next", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

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

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

main {
  display: flex;
  flex-direction: column;
}

.hero {
  order: 0;
}

.network-section {
  order: 1;
}

.carrier-section {
  order: 2;
}

.ip-section {
  order: 3;
}

.solutions-section {
  order: 4;
}

.service-section {
  order: 5;
}

.industries-section {
  order: 6;
}

.capabilities {
  order: 7;
}

.compute-section {
  order: 8;
}

.contact-section {
  order: 9;
}

.site-header {
  position: fixed;
  z-index: 30;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(14px, 1.6vw, 22px);
  min-height: 76px;
  padding: 14px clamp(20px, 4vw, 58px);
  color: var(--white);
  background: rgba(11, 18, 32, 0.42);
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  backdrop-filter: blur(18px);
  transition: background 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(11, 18, 32, 0.88);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.18);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand img {
  width: 52px;
  height: 52px;
  border-radius: 14px;
}

.brand > span {
  display: grid;
  gap: 2px;
  line-height: 1;
}

.brand strong {
  color: var(--white);
  font-size: 20px;
  font-weight: 900;
  white-space: nowrap;
}

.brand strong em {
  color: var(--green);
  font-style: normal;
}

.brand small {
  color: rgba(255, 255, 255, 0.74);
  font-size: 10px;
  font-weight: 800;
}

.brand::after {
  content: "";
  display: block;
  width: 68px;
  height: 1px;
  margin-left: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.header-actions {
  justify-self: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: clamp(14px, 1.4vw, 22px);
  min-width: 0;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
}

body.lang-zh .desktop-nav {
  gap: 10px;
  font-size: 15px;
}

.desktop-nav a,
.mobile-menu a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 38px;
  padding: 0 13px;
  border-radius: 6px;
  line-height: 1.2;
  font-weight: 800;
  white-space: nowrap;
  transition: color 160ms ease, background 160ms ease;
}

.desktop-nav small,
.mobile-menu small {
  color: rgba(255, 255, 255, 0.54);
  font-size: 10px;
  font-weight: 800;
  white-space: nowrap;
}

.desktop-nav a:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.language-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.language-current {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 58px;
  min-height: 32px;
  padding: 0 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.78);
  background: rgba(255, 255, 255, 0.045);
  font: inherit;
  font-size: 11px;
  font-weight: 800;
  cursor: pointer;
}

.language-current:focus-visible,
.language-menu button:focus-visible {
  outline: 2px solid rgba(34, 211, 238, 0.36);
  outline-offset: 2px;
}

.language-current:hover,
.language-switch.is-open .language-current {
  color: var(--white);
  border-color: rgba(34, 211, 238, 0.34);
  background: rgba(255, 255, 255, 0.08);
}

.language-current i {
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  opacity: 0.74;
}

.language-switch.is-open .language-current i {
  transform: translateY(2px) rotate(225deg);
}

.language-menu {
  position: absolute;
  z-index: 40;
  top: calc(100% + 8px);
  right: 0;
  display: none;
  min-width: 112px;
  padding: 5px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 6px;
  background: rgba(11, 18, 32, 0.96);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.28);
}

.language-switch.is-open .language-menu {
  display: grid;
  gap: 4px;
}

.language-menu button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 30px;
  width: 100%;
  padding: 0 9px;
  border: 0;
  border-radius: 4px;
  color: rgba(255, 255, 255, 0.72);
  background: transparent;
  font: inherit;
  font-size: 12px;
  font-weight: 800;
  text-align: left;
  cursor: pointer;
}

.language-menu button:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.language-menu button.is-active {
  color: #06101f;
  background: linear-gradient(135deg, var(--cyan), var(--green));
}

.mobile-language-switch {
  display: none;
  width: max-content;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 6px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
}

.primary-button {
  color: #06101f;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  box-shadow: 0 12px 34px rgba(34, 211, 238, 0.24);
}

.primary-button:disabled {
  cursor: wait;
  opacity: 0.64;
}

.secondary-button {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.08);
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
}

.menu-button span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: var(--white);
}

.mobile-menu {
  display: none;
}

.hero {
  position: relative;
  min-height: 88svh;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 82% 24%, rgba(52, 211, 153, 0.22), transparent 28%),
    radial-gradient(circle at 16% 38%, rgba(14, 165, 233, 0.20), transparent 30%),
    #07101f;
}

#networkCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.95;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 42%, rgba(7, 16, 31, 0.42) 0%, rgba(7, 16, 31, 0.78) 62%, rgba(7, 16, 31, 0.94) 100%),
    linear-gradient(180deg, rgba(7, 16, 31, 0.22) 0%, rgba(7, 16, 31, 0.82) 100%);
}

.hero-grid {
  position: relative;
  z-index: 2;
  width: min(980px, calc(100% - 40px));
  min-height: 88svh;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  justify-items: center;
  gap: 0;
  padding: 116px 0 86px;
  text-align: center;
}

.hero-copy {
  display: grid;
  justify-items: center;
  width: 100%;
  max-width: 900px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 900px;
  margin: 0;
  font-size: clamp(46px, 7vw, 86px);
  line-height: 0.96;
  letter-spacing: 0;
}

.hero-lede {
  max-width: 820px;
  margin: 28px auto 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.72;
}

.zh-copy {
  display: block;
  margin-top: 10px;
  color: inherit;
  font-size: 0.92em;
  line-height: 1.72;
  opacity: 0.72;
}

.hero-lede .zh-copy {
  color: rgba(255, 255, 255, 0.70);
  font-size: 0.80em;
  opacity: 1;
}

.zh-title {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.68em;
  font-weight: 800;
  line-height: 1.35;
}

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

.hero-panel {
  display: none;
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: 28px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
}

.orbit {
  position: relative;
  height: 300px;
  margin: 24px;
}

.orbit::before,
.orbit::after {
  content: "";
  position: absolute;
  inset: 28px 18px;
  border: 1px solid rgba(34, 211, 238, 0.30);
  border-radius: 50%;
  transform: rotate(22deg);
}

.orbit::after {
  transform: rotate(-34deg);
  border-color: rgba(52, 211, 153, 0.26);
}

.orbit-core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 142px;
  transform: translate(-50%, -50%);
  border-radius: 8px;
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.28);
}

.orbit-core img {
  width: 100%;
}

.node {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 8px rgba(34, 211, 238, 0.12);
}

.node-a { top: 34px; left: 62px; }
.node-b { top: 72px; right: 34px; background: var(--green); }
.node-c { bottom: 48px; left: 38px; background: var(--blue); }
.node-d { right: 68px; bottom: 36px; background: var(--gold); }

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-metrics div {
  padding: 22px 18px;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
}

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

.hero-metrics dt {
  margin: 0 0 6px;
  font-size: 28px;
  font-weight: 900;
}

.hero-metrics dd {
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 13px;
}

section:not(.hero) {
  padding: 92px clamp(20px, 5vw, 72px);
}

section[id] {
  scroll-margin-top: 96px;
}

.section-head {
  width: min(850px, 100%);
  margin-bottom: 38px;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.12;
  letter-spacing: 0;
}

.section-head p:last-child {
  margin: 18px 0 0;
  color: var(--slate);
  font-size: 17px;
  line-height: 1.78;
}

.capabilities {
  background: var(--white);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.capability-grid article,
.feature-block,
.ip-grid article,
.industry-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 26px;
  box-shadow: 0 16px 44px rgba(18, 33, 49, 0.06);
}

.capability-grid h3,
.feature-block h3,
.ip-grid h3,
.industry-grid h3,
.solution-panel h3 {
  margin: 16px 0 10px;
  font-size: 21px;
}

.capability-grid p,
.feature-block p,
.ip-grid p,
.industry-grid p,
.solution-panel p {
  margin: 0;
  color: var(--slate);
  line-height: 1.72;
}

.line-icon {
  display: inline-block;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.14), rgba(52, 211, 153, 0.14));
  position: relative;
}

.line-icon::before,
.line-icon::after {
  content: "";
  position: absolute;
  inset: 11px;
  border: 2px solid var(--blue);
  border-radius: 50%;
}

.network-icon::after {
  inset: 18px 8px;
  border-radius: 0;
  border-color: var(--green);
  border-left: 0;
  border-right: 0;
}

.chip-icon::before {
  border-radius: 5px;
}

.chip-icon::after {
  inset: 18px;
  background: var(--green);
  border: 0;
}

.ip-icon::before {
  border-radius: 8px;
}

.ip-icon::after {
  inset: 15px;
  border-color: var(--green);
}

.network-section,
.ip-section {
  background: var(--mist);
}

.network-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr);
  gap: 30px;
  align-items: stretch;
}

.world-map {
  position: relative;
  min-height: 470px;
  border: 1px solid rgba(34, 211, 238, 0.20);
  border-radius: 8px;
  overflow: hidden;
  background:
    radial-gradient(circle at 66% 28%, rgba(52, 211, 153, 0.22), transparent 34%),
    radial-gradient(circle at 32% 66%, rgba(14, 165, 233, 0.22), transparent 38%),
    linear-gradient(rgba(34, 211, 238, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.08) 1px, transparent 1px),
    #0b1422;
  background-size: auto, auto, 54px 54px, 54px 54px, auto;
  box-shadow: var(--shadow);
}

.world-map::before {
  content: "";
  position: absolute;
  inset: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  pointer-events: none;
}

.world-map::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(110deg, rgba(255, 255, 255, 0.08), transparent 28%, transparent 72%, rgba(34, 211, 238, 0.06)),
    radial-gradient(circle at 50% 50%, transparent 0 48%, rgba(0, 0, 0, 0.28) 78%);
  pointer-events: none;
}

.map-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.continent {
  fill: rgba(151, 190, 210, 0.18);
  stroke: rgba(219, 239, 248, 0.24);
  stroke-width: 2;
}

.route {
  fill: none;
  stroke-linecap: round;
  stroke-width: 3;
}

.route-soft {
  stroke: rgba(137, 216, 235, 0.28);
}

.route-main {
  stroke: url("#routeGradient");
  filter: url("#routeGlow");
  stroke-dasharray: 14 18;
  animation: routeMove 5.5s linear infinite;
}

.route-main.delay {
  animation-delay: -2.2s;
  opacity: 0.72;
}

@keyframes routeMove {
  to {
    stroke-dashoffset: -160;
  }
}

.map-title {
  position: absolute;
  z-index: 2;
  left: 28px;
  top: 26px;
  display: grid;
  gap: 6px;
  color: var(--white);
}

.map-title strong {
  font-size: 18px;
  letter-spacing: 0;
}

.map-title span {
  color: rgba(255, 255, 255, 0.60);
  font-size: 12px;
  font-weight: 800;
}

.map-node {
  position: absolute;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 6px 12px 6px 10px;
  border: 1px solid rgba(34, 211, 238, 0.32);
  border-radius: 6px;
  color: var(--white);
  background: rgba(12, 22, 36, 0.76);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
  font-size: 12px;
  font-weight: 900;
}

.map-node::before {
  content: "";
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 7px rgba(34, 211, 238, 0.14), 0 0 20px rgba(34, 211, 238, 0.72);
}

.map-node::after {
  content: attr(data-role);
  display: block;
  margin-left: 3px;
  padding-left: 8px;
  border-left: 1px solid rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.56);
  font-size: 10px;
  font-weight: 800;
  white-space: nowrap;
}

.hongkong { left: 70%; top: 52%; }
.singapore { left: 65%; top: 67%; }
.tokyo { left: 79%; top: 37%; }
.la { left: 12%; top: 49%; }
.ny { left: 28%; top: 40%; }
.london { left: 44%; top: 30%; }
.frankfurt { left: 51%; top: 42%; }
.sao { left: 33%; top: 71%; }

.hongkong::before,
.singapore::before,
.sao::before {
  background: var(--green);
  box-shadow: 0 0 0 7px rgba(52, 211, 153, 0.14), 0 0 20px rgba(52, 211, 153, 0.72);
}

.map-legend {
  position: absolute;
  z-index: 2;
  left: 28px;
  right: 28px;
  bottom: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.map-legend span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.68);
  background: rgba(255, 255, 255, 0.06);
  font-size: 11px;
  font-weight: 800;
}

.map-legend i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
}

.map-legend .legend-edge {
  background: var(--blue);
}

.map-legend .legend-ip {
  background: var(--green);
}

.network-stats {
  display: grid;
  gap: 16px;
}

.network-stats div {
  display: grid;
  align-content: center;
  min-height: 104px;
  padding: 20px 24px;
  border-radius: 8px;
  color: var(--white);
  background: var(--navy);
}

.network-stats strong {
  color: var(--cyan);
  font-size: 36px;
  line-height: 1;
}

.network-stats span {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.76);
}

.carrier-section {
  background: #ffffff;
  overflow: hidden;
}

.carrier-marquee {
  position: relative;
  display: grid;
  gap: 14px;
  padding: 18px 0;
  overflow: hidden;
}

.carrier-marquee::before,
.carrier-marquee::after {
  content: "";
  position: absolute;
  z-index: 2;
  top: 0;
  bottom: 0;
  width: 120px;
  pointer-events: none;
}

.carrier-marquee::before {
  left: 0;
  background: linear-gradient(90deg, #ffffff, transparent);
}

.carrier-marquee::after {
  right: 0;
  background: linear-gradient(270deg, #ffffff, transparent);
}

.carrier-track {
  display: flex;
  width: max-content;
  gap: 14px;
  animation: carrierScroll 34s linear infinite;
}

.carrier-track.reverse {
  animation-name: carrierScrollReverse;
  animation-duration: 38s;
}

.carrier-marquee:hover .carrier-track {
  animation-play-state: paused;
}

.carrier-card {
  display: grid;
  grid-template-columns: 46px minmax(120px, 1fr);
  grid-template-rows: auto auto;
  column-gap: 12px;
  align-items: center;
  min-width: 238px;
  min-height: 82px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(14, 165, 233, 0.06), rgba(52, 211, 153, 0.08)),
    #ffffff;
  box-shadow: 0 12px 34px rgba(18, 33, 49, 0.07);
}

.carrier-card img {
  grid-row: 1 / 3;
  width: 46px;
  height: 46px;
  padding: 8px;
  border-radius: 12px;
  background: #ffffff;
  box-shadow: inset 0 0 0 1px rgba(14, 165, 233, 0.12), 0 8px 18px rgba(18, 33, 49, 0.08);
  object-fit: contain;
}

.carrier-card strong {
  color: var(--ink);
  font-size: 18px;
  font-weight: 900;
  line-height: 1.1;
}

.carrier-card em {
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
  font-weight: 800;
}

.carrier-proof {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}

.carrier-proof span {
  min-height: 64px;
  display: grid;
  place-items: center;
  padding: 12px;
  border: 1px solid rgba(14, 165, 233, 0.18);
  border-radius: 8px;
  color: #173044;
  background: var(--mist);
  font-weight: 900;
  text-align: center;
}

.carrier-proof small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

@keyframes carrierScroll {
  to {
    transform: translateX(calc(-50% - 7px));
  }
}

@keyframes carrierScrollReverse {
  from {
    transform: translateX(calc(-50% - 7px));
  }

  to {
    transform: translateX(0);
  }
}

.compute-section {
  background: #fbfdff;
}

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

.feature-block ul {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.feature-block li {
  position: relative;
  padding-left: 22px;
  color: var(--slate);
}

.feature-block li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
}

.highlight-block {
  color: var(--white);
  border-color: transparent;
  background:
    linear-gradient(135deg, rgba(14, 165, 233, 0.88), rgba(20, 184, 166, 0.92)),
    var(--blue);
}

.highlight-block p,
.highlight-block li {
  color: rgba(255, 255, 255, 0.86);
}

.highlight-block .zh-title {
  color: rgba(255, 255, 255, 0.66);
}

.highlight-block li::before {
  background: var(--gold);
}

.solutions-section {
  color: var(--white);
  background:
    linear-gradient(rgba(8, 15, 29, 0.92), rgba(8, 15, 29, 0.92)),
    radial-gradient(circle at 82% 20%, rgba(52, 211, 153, 0.26), transparent 30%),
    #080f1d;
}

.solutions-section .section-head p:last-child {
  color: rgba(255, 255, 255, 0.72);
}

.solution-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.tab {
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.74);
  background: rgba(255, 255, 255, 0.07);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.tab.is-active {
  color: #07101f;
  background: linear-gradient(135deg, var(--cyan), var(--green));
}

.solution-stage {
  position: relative;
  min-height: 270px;
}

.solution-panel {
  display: none;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: 30px;
  align-items: center;
  min-height: 270px;
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.solution-panel.is-active {
  display: grid;
}

.solutions-section .solution-panel p {
  color: rgba(255, 255, 255, 0.72);
}

.solutions-section .zh-title {
  color: rgba(255, 255, 255, 0.60);
}

.solutions-section .zh-copy {
  color: rgba(255, 255, 255, 0.66);
  opacity: 1;
}

.flow {
  display: grid;
  grid-template-columns: 1fr 40px 1fr 40px 1fr 40px 1fr;
  align-items: center;
  gap: 8px;
}

.flow span {
  display: grid;
  place-items: center;
  min-height: 82px;
  padding: 12px;
  border-radius: 8px;
  color: var(--ink);
  background: var(--white);
  font-weight: 800;
  text-align: center;
}

.flow span small {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.25;
}

.flow i {
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--green));
}

.ip-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 0.72fr);
  gap: 34px;
  align-items: stretch;
}

.ip-console {
  position: relative;
  min-height: 320px;
  overflow: hidden;
  border: 1px solid rgba(34, 211, 238, 0.20);
  border-radius: 8px;
  color: var(--white);
  background:
    radial-gradient(circle at 70% 24%, rgba(52, 211, 153, 0.22), transparent 30%),
    radial-gradient(circle at 22% 70%, rgba(14, 165, 233, 0.24), transparent 34%),
    #0b1422;
  box-shadow: var(--shadow);
}

.ip-console::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(34, 211, 238, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.08) 1px, transparent 1px);
  background-size: 44px 44px;
}

.console-top {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}

.console-top span {
  font-weight: 900;
}

.console-top strong {
  padding: 6px 10px;
  border-radius: 999px;
  color: #06251f;
  background: var(--green);
  font-size: 12px;
}

.console-map {
  position: relative;
  z-index: 1;
  height: 174px;
  margin: 20px 22px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
}

.console-node {
  position: absolute;
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  border: 1px solid rgba(34, 211, 238, 0.34);
  border-radius: 50%;
  color: var(--white);
  background: rgba(12, 22, 36, 0.86);
  box-shadow: 0 0 0 8px rgba(34, 211, 238, 0.10), 0 16px 34px rgba(0, 0, 0, 0.24);
  font-size: 12px;
  font-weight: 900;
}

.node-hk { left: 52%; top: 22%; }
.node-la { left: 14%; top: 52%; }
.node-lon { left: 38%; top: 18%; }
.node-tok { right: 12%; top: 48%; }

.console-route {
  position: absolute;
  left: 18%;
  right: 16%;
  height: 88px;
  border-top: 2px solid rgba(34, 211, 238, 0.46);
  border-radius: 50%;
}

.route-one {
  top: 42%;
  transform: rotate(-9deg);
}

.route-two {
  top: 33%;
  border-color: rgba(52, 211, 153, 0.44);
  transform: rotate(13deg);
}

.console-metrics {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.10);
}

.console-metrics div {
  padding: 18px 20px;
  border-right: 1px solid rgba(255, 255, 255, 0.10);
}

.console-metrics div:last-child {
  border-right: 0;
}

.console-metrics dt {
  margin-bottom: 6px;
  color: var(--cyan);
  font-size: 28px;
  font-weight: 900;
}

.console-metrics dd {
  margin: 0;
  color: rgba(255, 255, 255, 0.66);
  font-size: 13px;
}

.ip-products {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.ip-product-card {
  position: relative;
  overflow: hidden;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 16px 44px rgba(18, 33, 49, 0.08);
}

.ip-product-card::after {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.18), transparent 64%);
}

.dynamic-card::after {
  background: radial-gradient(circle, rgba(52, 211, 153, 0.20), transparent 64%);
}

.product-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 20px;
}

.product-card-head span {
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.product-card-head strong {
  padding: 7px 10px;
  border-radius: 999px;
  color: #0a473b;
  background: rgba(52, 211, 153, 0.16);
  font-size: 12px;
}

.ip-product-card h3 {
  margin: 0 0 12px;
  font-size: 26px;
}

.ip-product-card p {
  margin: 0;
  color: var(--slate);
  line-height: 1.76;
}

.ip-feature-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.ip-feature-chips span {
  padding: 8px 10px;
  border-radius: 6px;
  color: #164057;
  background: var(--mist);
  font-size: 13px;
  font-weight: 800;
}

.ip-points {
  display: grid;
  gap: 11px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.ip-points li {
  position: relative;
  padding-left: 22px;
  color: var(--slate);
  line-height: 1.68;
}

.ip-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
}

.ip-matrix {
  display: grid;
  margin-top: 22px;
  overflow: hidden;
  border: 1px solid rgba(14, 165, 233, 0.18);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 16px 44px rgba(18, 33, 49, 0.06);
}

.matrix-row {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr 1.18fr 1fr;
  border-top: 1px solid var(--line);
}

.matrix-row:first-child {
  border-top: 0;
}

.matrix-row > * {
  padding: 18px;
  border-left: 1px solid var(--line);
  color: var(--slate);
  line-height: 1.55;
}

.matrix-row > *:first-child {
  border-left: 0;
}

.matrix-row strong {
  color: var(--ink);
}

.matrix-row strong small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.matrix-head {
  background: #102033;
}

.matrix-head span {
  color: rgba(255, 255, 255, 0.76);
  font-weight: 900;
}

.ip-workflow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.ip-workflow article {
  min-height: 180px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.74);
}

.ip-workflow > article > span {
  color: var(--cyan);
  font-size: 28px;
  font-weight: 900;
}

.ip-workflow h3 {
  margin: 18px 0 8px;
  font-size: 20px;
}

.ip-workflow p {
  margin: 0;
  color: var(--slate);
  line-height: 1.68;
}

.service-section {
  background: #fbfdff;
}

.service-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.78fr) minmax(0, 1.22fr);
  gap: 22px;
  align-items: stretch;
}

.service-panel {
  display: grid;
  align-content: space-between;
  min-height: 420px;
  padding: 30px;
  border-radius: 8px;
  color: var(--white);
  background:
    radial-gradient(circle at 80% 18%, rgba(52, 211, 153, 0.28), transparent 32%),
    radial-gradient(circle at 18% 80%, rgba(14, 165, 233, 0.24), transparent 34%),
    #0b1422;
  box-shadow: var(--shadow);
}

.service-panel > span {
  width: max-content;
  padding: 8px 11px;
  border-radius: 999px;
  color: #06251f;
  background: var(--green);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.service-panel h3 {
  max-width: 440px;
  margin: 26px 0 14px;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.08;
}

.service-panel p {
  max-width: 500px;
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.76;
}

.service-panel dl {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 34px 0 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.10);
}

.service-panel dl div {
  padding: 18px 14px;
  background: rgba(255, 255, 255, 0.05);
}

.service-panel dt {
  color: var(--cyan);
  font-size: 28px;
  font-weight: 900;
}

.service-panel dd {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.66);
  font-size: 12px;
  font-weight: 800;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.service-grid article {
  min-height: 202px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 16px 44px rgba(18, 33, 49, 0.06);
}

.service-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  color: #073044;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  font-weight: 900;
}

.service-grid h3 {
  margin: 18px 0 10px;
  font-size: 21px;
  line-height: 1.28;
}

.service-grid p {
  margin: 0;
  color: var(--slate);
  line-height: 1.72;
}

.industries-section {
  background: var(--white);
}

.industry-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.75fr);
  gap: 50px;
  color: var(--white);
  background: var(--navy);
}

.contact-copy h2 {
  margin: 0;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.08;
}

.contact-copy p:last-child {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.74);
  line-height: 1.78;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: rgba(255, 255, 255, 0.82);
  font-weight: 700;
}

.contact-form label small {
  margin-left: 5px;
  color: rgba(255, 255, 255, 0.52);
  font-size: 12px;
  font-weight: 700;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  color: var(--white);
  background: rgba(0, 0, 0, 0.18);
  font: inherit;
  padding: 12px 13px;
}

.contact-form textarea {
  resize: vertical;
}

.contact-form option {
  color: var(--ink);
}

.form-note {
  margin: 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
  line-height: 1.55;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease;
}

.form-note.is-loading,
.form-note.is-success,
.form-note.is-error {
  min-height: 48px;
  display: flex;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 6px;
  font-size: 14px;
  font-weight: 800;
}

.form-note.is-loading {
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.08);
}

.form-note.is-success {
  color: #d8fff1;
  border-color: rgba(52, 211, 153, 0.42);
  background: rgba(52, 211, 153, 0.16);
}

.form-note.is-error {
  color: #ffe4e4;
  border-color: rgba(248, 113, 113, 0.42);
  background: rgba(248, 113, 113, 0.16);
}

.site-footer {
  display: grid;
  gap: 18px;
  padding: 28px clamp(20px, 5vw, 72px);
  color: rgba(255, 255, 255, 0.64);
  background: #070d18;
}

.footer-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-summary {
  text-align: right;
}

.footer-copyright {
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.48);
  font-size: 13px;
  font-weight: 700;
}

.footer-brand::after {
  width: 96px;
}

@media (max-width: 1220px) {
  .desktop-nav {
    display: none;
  }

  .site-header {
    grid-template-columns: auto 1fr auto;
  }

  .header-actions {
    justify-self: end;
  }

  .menu-button {
    display: block;
  }

  .mobile-menu {
    position: fixed;
    z-index: 29;
    top: 76px;
    left: 0;
    right: 0;
    display: none;
    padding: 18px 24px 24px;
    color: var(--white);
    background: rgba(11, 18, 32, 0.96);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }

  .mobile-menu.is-open {
    display: grid;
    gap: 16px;
  }

  .mobile-menu .mobile-language-switch {
    display: inline-flex;
    margin-top: 4px;
  }

  .hero-grid,
  .ip-hero,
  .service-layout,
  .news-layout,
  .network-layout,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    min-height: 360px;
  }

  .capability-grid,
  .ip-workflow,
  .carrier-proof,
  .industry-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .solution-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .brand img {
    width: 48px;
    height: 48px;
  }

  .brand strong {
    font-size: 18px;
  }

  .brand small {
    font-size: 9px;
  }

  .brand::after {
    display: none;
  }

  .site-header .header-actions {
    display: none;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid {
    min-height: 92svh;
    width: min(100% - 32px, 1160px);
    padding: 102px 0 42px;
    gap: 30px;
  }

  .hero h1 {
    font-size: clamp(38px, 13vw, 54px);
  }

  .hero-lede {
    font-size: 17px;
  }

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

  .orbit {
    height: 230px;
  }

  .hero-metrics,
  .capability-grid,
  .carrier-proof,
  .ip-products,
  .service-grid,
  .ip-workflow,
  .industry-grid {
    grid-template-columns: 1fr;
  }

  .service-panel {
    min-height: auto;
  }

  .service-panel dl {
    grid-template-columns: 1fr;
  }

  .carrier-marquee::before,
  .carrier-marquee::after {
    width: 46px;
  }

  .carrier-card {
    grid-template-columns: 40px minmax(96px, 1fr);
    min-width: 206px;
    min-height: 74px;
    padding: 13px;
  }

  .carrier-card img {
    width: 40px;
    height: 40px;
    padding: 7px;
    border-radius: 10px;
  }

  .carrier-card strong {
    font-size: 15px;
  }

  .ip-console {
    min-height: 300px;
  }

  .product-card-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .matrix-row {
    grid-template-columns: 1fr;
  }

  .matrix-head {
    display: none;
  }

  .matrix-row > * {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .matrix-row > *:first-child {
    border-top: 0;
  }

  .matrix-row:not(.matrix-head) {
    margin-bottom: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
  }

  .matrix-row:not(.matrix-head) strong {
    color: var(--white);
    background: #102033;
  }

  .matrix-row:not(.matrix-head) span {
    display: grid;
    gap: 4px;
  }

  .matrix-row:not(.matrix-head) span::before {
    color: var(--blue);
    font-size: 12px;
    font-weight: 900;
  }

  .matrix-row:not(.matrix-head) span:nth-child(2)::before {
    content: "Best For";
  }

  .matrix-row:not(.matrix-head) span:nth-child(3)::before {
    content: "Control Layer";
  }

  .matrix-row:not(.matrix-head) span:nth-child(4)::before {
    content: "Access Method";
  }

  body.lang-zh .matrix-row:not(.matrix-head) span:nth-child(2)::before {
    content: "适合业务";
  }

  body.lang-zh .matrix-row:not(.matrix-head) span:nth-child(3)::before {
    content: "控制能力";
  }

  body.lang-zh .matrix-row:not(.matrix-head) span:nth-child(4)::before {
    content: "接入方式";
  }

  .console-metrics div {
    padding: 14px 12px;
  }

  .console-metrics dt {
    font-size: 22px;
  }

  section:not(.hero) {
    padding: 68px 18px;
  }

  .world-map {
    min-height: 430px;
  }

  .map-node {
    min-height: 34px;
    gap: 6px;
    padding: 5px 8px;
    font-size: 10px;
  }

  .map-node::before {
    width: 8px;
    height: 8px;
    box-shadow: 0 0 0 5px rgba(34, 211, 238, 0.14), 0 0 16px rgba(34, 211, 238, 0.72);
  }

  .map-node::after {
    display: none;
  }

  .hongkong { left: 63%; top: 53%; }
  .singapore { left: 57%; top: 70%; }
  .tokyo { left: 74%; top: 40%; }
  .la { left: 9%; top: 52%; }
  .ny { left: 28%; top: 43%; }
  .london { left: 43%; top: 34%; }
  .frankfurt { left: 49%; top: 49%; }
  .sao { left: 34%; top: 74%; }

  .map-title {
    left: 24px;
    top: 24px;
  }

  .map-title strong {
    font-size: 16px;
  }

  .map-title span {
    font-size: 10px;
  }

  .map-legend {
    left: 24px;
    right: 24px;
    bottom: 22px;
    gap: 6px;
  }

  .map-legend span {
    min-height: 26px;
    padding: 0 8px;
    font-size: 10px;
  }

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

  .flow i {
    width: 2px;
    height: 24px;
    justify-self: center;
  }

  .site-footer {
    align-items: flex-start;
  }

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

  .footer-summary {
    text-align: left;
  }
}