:root {
  --bg: #f6f4ee;
  --bg-soft: #f0ebe1;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-strong: rgba(255, 255, 255, 0.9);
  --ink: #1f2430;
  --ink-soft: #5f6674;
  --line: rgba(31, 36, 48, 0.12);
  --primary: #005f73;
  --primary-strong: #0a9396;
  --accent: #ee9b00;
  --accent-soft: rgba(238, 155, 0, 0.14);
  --shadow: 0 24px 64px rgba(24, 37, 56, 0.14);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: min(1180px, calc(100vw - 48px));
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC",
    "Source Han Sans SC", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(10, 147, 150, 0.16), transparent 28%),
    radial-gradient(circle at bottom left, rgba(238, 155, 0, 0.14), transparent 26%),
    linear-gradient(180deg, #fbfaf6 0%, var(--bg) 52%, #ece6da 100%);
  font-family: var(--font-sans);
  line-height: 1.7;
  letter-spacing: 0.01em;
}

body.nav-open {
  overflow: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.2) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.18) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 92%);
  opacity: 0.4;
}

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

img {
  max-width: 100%;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-shell {
  position: relative;
  overflow: clip;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(246, 244, 238, 0.66);
  border-bottom: 1px solid transparent;
  transition: border-color 220ms ease, background 220ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(246, 244, 238, 0.82);
}

.nav {
  width: var(--container);
  min-height: 78px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand__mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  box-shadow: 0 18px 34px rgba(0, 95, 115, 0.2);
}

.brand__text strong,
.brand__text span {
  display: block;
}

.brand__text strong {
  font-size: 1.02rem;
  letter-spacing: 0.04em;
}

.brand__text span {
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.nav__toggle {
  display: none;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.76);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav__toggle span {
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background: var(--ink);
  transition: transform 180ms ease, opacity 180ms ease;
}

.site-header.is-menu-open .nav__toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header.is-menu-open .nav__toggle span:nth-child(2) {
  opacity: 0;
}

.site-header.is-menu-open .nav__toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav__links a {
  position: relative;
  padding: 10px 14px;
  color: var(--ink-soft);
  border-radius: 999px;
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.nav__links a:hover,
.nav__links a.is-active {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.7);
  transform: translateY(-1px);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
}

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

.button--primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);
  box-shadow: 0 18px 34px rgba(0, 95, 115, 0.24);
}

.nav__links .button--primary {
  color: #ffffff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
}

.button--ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.48);
}

.hero,
.page-hero {
  position: relative;
  padding: 74px 0 46px;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 36px;
  align-items: center;
}

.hero__backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 14% 22%, rgba(10, 147, 150, 0.16), transparent 30%),
    radial-gradient(circle at 85% 18%, rgba(238, 155, 0, 0.18), transparent 28%);
  pointer-events: none;
}

.hero h1,
.page-hero h1,
.section-heading h2,
.split h2,
.cta h2,
.solution-card h2,
.capability h2,
.contact-card h2 {
  margin: 0;
  letter-spacing: 0.02em;
  line-height: 1.18;
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.8rem);
  max-width: 11ch;
}

.page-hero h1 {
  font-size: clamp(2.3rem, 4.8vw, 4rem);
  max-width: 12ch;
}

.hero__lead,
.page-hero p,
.section-heading,
.split p,
.solution-card p,
.capability p,
.contact-card p,
.card p,
.cta p {
  color: var(--ink-soft);
  font-size: 1.03rem;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero__actions,
.cta__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 42px 0 0;
  padding: 0;
  list-style: none;
}

.hero__stats li,
.card,
.solution-card,
.contact-card,
.contact-side .card,
.capability,
.network-card,
.timeline article,
.architecture__steps article,
.cta {
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: var(--surface);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.hero__stats li {
  padding: 18px;
  border-radius: var(--radius-md);
}

.hero__stats strong,
.timeline h3,
.card h3,
.solution-card h2,
.capability__label,
.contact-side h3 {
  display: block;
  margin-bottom: 8px;
}

.network-card {
  position: relative;
  padding: 28px;
  border-radius: 32px;
  overflow: hidden;
}

.network-card__tag {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--primary);
  background: rgba(0, 95, 115, 0.1);
  font-size: 0.88rem;
  font-weight: 600;
}

.network-topology {
  position: relative;
  min-height: 260px;
  margin: 24px 0 18px;
  border-radius: 24px;
  background:
    radial-gradient(circle at center, rgba(10, 147, 150, 0.14), transparent 38%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.58), rgba(255, 255, 255, 0.18));
  border: 1px solid rgba(255, 255, 255, 0.52);
}

.network-status-bar {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0 0;
}

.network-status-bar__item {
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
}

.network-status-bar__item span,
.network-status-bar__item strong {
  display: block;
}

.network-status-bar__item span {
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.network-status-bar__item strong {
  margin-top: 6px;
  font-size: 1.15rem;
  color: var(--primary);
}

.network-line {
  position: absolute;
  height: 2px;
  background: linear-gradient(90deg, rgba(10, 147, 150, 0.2), rgba(10, 147, 150, 0.95), rgba(238, 155, 0, 0.4));
  transform-origin: left center;
  opacity: 0.9;
  z-index: 1;
  pointer-events: none;
}

.network-line.is-live {
  animation: routeGlow 1.8s linear infinite;
}

.network-line--1 {
  width: 120px;
  left: calc(50% - 2px);
  top: calc(50% + 16px);
  transform: rotate(172deg);
}

.network-line--2 {
  width: 126px;
  left: calc(50% + 56px);
  top: calc(50% + 6px);
  transform: rotate(-26deg);
}

.network-line--3 {
  width: 124px;
  left: calc(50% + 22px);
  top: calc(50% - 2px);
  transform: rotate(114deg);
}

.network-line--4 {
  width: 118px;
  left: calc(50% + 2px);
  top: calc(50% + 18px);
  transform: rotate(54deg);
}

.network-node {
  position: absolute;
  width: 126px;
  padding: 12px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(0, 95, 115, 0.12);
  box-shadow: 0 18px 34px rgba(20, 35, 52, 0.12);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
  cursor: pointer;
  z-index: 3;
}

.network-node strong,
.network-node span {
  display: block;
}

.network-node strong {
  font-size: 0.94rem;
}

.network-node span {
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.network-node::before {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary-strong);
  box-shadow: 0 0 0 8px rgba(10, 147, 150, 0.12);
}

.network-node:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 95, 115, 0.28);
  box-shadow: 0 24px 36px rgba(20, 35, 52, 0.18);
}

.network-node--online::after,
.network-node--blink::after {
  content: "";
  position: absolute;
  top: 10px;
  right: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #1fbf75;
}

.network-node--blink::after {
  animation: statusBlink 1.15s ease-in-out infinite;
}

.network-node--center {
  left: calc(50% - 63px);
  top: calc(50% - 40px);
}

.network-node--center::before {
  left: calc(50% - 5px);
  bottom: -18px;
}

.network-node--left {
  left: 28px;
  top: 62%;
}

.network-node--left::before {
  right: -18px;
  top: calc(50% - 5px);
}

.network-node--right {
  right: 18px;
  top: 30%;
}

.network-node--right::before {
  left: -18px;
  top: calc(50% - 5px);
}

.network-node--top {
  top: 18px;
  left: calc(50% + 42px);
}

.network-node--top::before {
  left: 14px;
  bottom: -18px;
}

.network-node--bottom {
  bottom: 18px;
  left: calc(50% + 10px);
}

.network-node--bottom::before {
  left: 18px;
  top: -18px;
}

.network-pulse {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(10, 147, 150, 0.26);
  animation: pulseRing 3.4s ease-out infinite;
  z-index: 0;
  pointer-events: none;
}

.network-pulse--1 {
  width: 150px;
  height: 150px;
  left: calc(50% - 75px);
  top: calc(50% - 75px);
}

.network-pulse--2 {
  width: 210px;
  height: 210px;
  left: calc(50% - 105px);
  top: calc(50% - 105px);
  animation-delay: 1.2s;
}

.topology-tooltip {
  position: absolute;
  left: 16px;
  bottom: 16px;
  max-width: 220px;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(31, 36, 48, 0.84);
  color: #fff;
  font-size: 0.82rem;
  line-height: 1.65;
  white-space: pre-line;
  box-shadow: 0 16px 32px rgba(18, 22, 34, 0.28);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 160ms ease, transform 160ms ease;
  z-index: 4;
  pointer-events: none;
}

.topology-tooltip.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.network-card__metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.network-card__metrics div {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.7);
}

.network-card__metrics span,
.network-card__metrics strong {
  display: block;
}

.network-card__metrics span {
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.network-card__metrics strong {
  margin-top: 4px;
  font-size: 1.08rem;
}

.network-card__list {
  display: grid;
  gap: 12px;
}

.network-card__list article {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.68);
}

.network-card__list p,
.network-card__list strong {
  margin: 0;
}

.section {
  padding: 48px 0 70px;
}

.section--muted {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.24), rgba(240, 235, 225, 0.62));
}

.section-heading {
  max-width: 720px;
  margin-bottom: 28px;
}

.feature-grid,
.solution-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.card,
.solution-card,
.contact-card,
.contact-side .card,
.capability,
.cta,
.architecture {
  border-radius: var(--radius-lg);
}

.card,
.solution-card,
.contact-card,
.contact-side .card,
.capability {
  padding: 26px;
}

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

.metric-card {
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: var(--surface);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

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

.metric-card span {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.metric-card strong {
  margin: 10px 0 12px;
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1;
  color: var(--primary);
}

.metric-card p {
  margin: 0;
  color: var(--ink-soft);
}

.map-layout {
  display: grid;
  gap: 26px;
}

.global-network {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 22px;
}

.global-network__visual,
.global-network__info {
  display: grid;
  gap: 16px;
}

.network-globe,
.route-card,
.globe-stat {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: var(--surface);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.network-globe {
  position: relative;
  min-height: 420px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 50%, rgba(10, 147, 150, 0.16), transparent 36%),
    radial-gradient(circle at 70% 30%, rgba(238, 155, 0, 0.12), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.74), rgba(244, 239, 231, 0.72));
  animation: globeFloat 8s ease-in-out infinite;
}

.network-globe__halo {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(10, 147, 150, 0.14);
}

.network-globe__halo--1 {
  width: 360px;
  height: 360px;
  animation: pulseRing 5s ease-out infinite;
}

.network-globe__halo--2 {
  width: 440px;
  height: 440px;
  animation: pulseRing 6.4s ease-out infinite;
  animation-delay: 0.8s;
}

.network-globe__sphere {
  position: relative;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.88), rgba(10, 147, 150, 0.2) 44%, rgba(0, 95, 115, 0.72) 100%);
  box-shadow:
    inset -24px -28px 60px rgba(0, 95, 115, 0.36),
    0 34px 80px rgba(18, 35, 52, 0.22);
  overflow: hidden;
  animation: globeRotate 20s linear infinite;
}

.globe-grid,
.globe-arc {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.globe-grid--h1 { inset: 18% 6%; }
.globe-grid--h2 { inset: 34% 6%; }
.globe-grid--v1 { inset: 6% 26%; }
.globe-grid--v2 { inset: 6% 42%; }

.globe-arc--1 {
  width: 82%;
  height: 82%;
  left: 9%;
  top: 9%;
  border-color: rgba(255, 255, 255, 0.28);
  animation: routeFlow 5s linear infinite;
}

.globe-arc--2 {
  width: 64%;
  height: 120%;
  left: 18%;
  top: -10%;
  animation: routeFlow 6s linear infinite reverse;
}

.globe-arc--3 {
  width: 120%;
  height: 60%;
  left: -10%;
  top: 20%;
  animation: routeFlow 7s linear infinite;
}

.globe-node {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.08);
  animation: nodeBlink 2.4s ease-in-out infinite;
}

.globe-node--1 { left: 34%; top: 22%; }
.globe-node--2 { left: 56%; top: 28%; }
.globe-node--3 { left: 63%; top: 44%; }
.globe-node--4 { left: 58%; top: 62%; }
.globe-node--5 { left: 42%; top: 42%; }
.globe-node--6 { left: 28%; top: 58%; }
.globe-node--7 { left: 72%; top: 54%; }
.globe-node--8 { left: 46%; top: 72%; }

.globe-node--2,
.globe-node--5,
.globe-node--8 { animation-delay: 0.4s; }

.globe-node--3,
.globe-node--6 { animation-delay: 0.8s; }

.globe-summary {
  display: grid;
  gap: 16px;
}

.globe-stat,
.route-card {
  padding: 24px;
}

.globe-stat span,
.globe-stat strong,
.route-card span,
.route-card strong {
  display: block;
}

.globe-stat span,
.route-card span {
  color: var(--ink-soft);
  font-size: 0.84rem;
}

.globe-stat strong,
.route-card strong {
  margin: 8px 0 10px;
  font-size: 1.14rem;
}

.globe-stat p,
.route-card p {
  margin: 0;
  color: var(--ink-soft);
}

.globe-stat strong {
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1;
  color: var(--primary);
}

.globe-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.globe-tags span {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(0, 95, 115, 0.1);
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: center;
}

.showcase__visual {
  min-height: 300px;
}

.showcase-diagram,
.capability-orbit,
.company-panel,
.contact-banner {
  height: 100%;
  min-height: 300px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: var(--surface);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.showcase-diagram {
  position: relative;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 20% 20%, rgba(10, 147, 150, 0.14), transparent 22%),
    radial-gradient(circle at 78% 72%, rgba(238, 155, 0, 0.12), transparent 20%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.74), rgba(244, 239, 231, 0.72));
}

.showcase-diagram article {
  position: absolute;
  padding: 12px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 12px 24px rgba(20, 35, 52, 0.12);
}

.showcase-diagram article:nth-of-type(1) { left: 18%; top: 20%; }
.showcase-diagram article:nth-of-type(2) { left: 16%; bottom: 18%; }
.showcase-diagram article:nth-of-type(3) { right: 16%; top: 22%; }
.showcase-diagram article:nth-of-type(4) { right: 12%; bottom: 18%; }

.showcase-diagram__line {
  position: absolute;
  height: 2px;
  background: linear-gradient(90deg, rgba(10, 147, 150, 0.18), rgba(10, 147, 150, 0.92), rgba(238, 155, 0, 0.4));
  transform-origin: left center;
  animation: routeFlow 6s linear infinite;
}

.showcase-diagram__line--1 {
  width: 180px;
  left: 30%;
  top: 35%;
  transform: rotate(18deg);
}

.showcase-diagram__line--2 {
  width: 170px;
  left: 30%;
  top: 54%;
  transform: rotate(-12deg);
}

.showcase-diagram__line--3 {
  width: 120px;
  left: 48%;
  top: 50%;
  transform: rotate(72deg);
}

.capability-orbit {
  position: relative;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at center, rgba(10, 147, 150, 0.14), transparent 32%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.74), rgba(244, 239, 231, 0.72));
}

.capability-orbit::before,
.capability-orbit::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0, 95, 115, 0.12);
}

.capability-orbit::before {
  width: 220px;
  height: 220px;
}

.capability-orbit::after {
  width: 280px;
  height: 280px;
}

.capability-orbit__core {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  box-shadow: 0 18px 34px rgba(0, 95, 115, 0.24);
}

.capability-orbit span {
  position: absolute;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
}

.capability-orbit span:nth-of-type(1) { top: 16%; left: 42%; }
.capability-orbit span:nth-of-type(2) { top: 42%; right: 12%; }
.capability-orbit span:nth-of-type(3) { bottom: 16%; left: 44%; }
.capability-orbit span:nth-of-type(4) { top: 42%; left: 10%; }

.company-panel {
  display: grid;
  gap: 14px;
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(244, 239, 231, 0.72));
}

.company-panel article {
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.8);
}

.company-panel strong,
.company-panel span {
  display: block;
}

.company-panel span {
  margin-top: 6px;
  color: var(--ink-soft);
}

.contact-banner {
  display: grid;
  place-items: center;
  gap: 14px;
  padding: 24px;
  background:
    radial-gradient(circle at top right, rgba(10, 147, 150, 0.14), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(244, 239, 231, 0.72));
}

.contact-banner span {
  display: inline-flex;
  padding: 12px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--ink);
  box-shadow: 0 12px 24px rgba(20, 35, 52, 0.1);
}

.contact-wechat-card {
  margin-top: 18px;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
  background: linear-gradient(180deg, rgba(28, 143, 94, 0.16), rgba(255, 255, 255, 0.9));
  border: 1px solid rgba(28, 143, 94, 0.22);
}

.contact-wechat-card:hover,
.contact-wechat-card:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(28, 143, 94, 0.34);
  box-shadow: 0 24px 36px rgba(20, 35, 52, 0.16);
  outline: none;
}

.contact-wechat-card .eyebrow,
.contact-wechat-card h3 {
  color: #1c8f5e;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease;
}

.modal.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(18, 22, 34, 0.56);
  backdrop-filter: blur(10px);
}

.modal__dialog {
  position: relative;
  width: min(92vw, 480px);
  padding: 24px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 28px 72px rgba(12, 20, 31, 0.24);
}

.modal__dialog h2 {
  margin: 0 0 16px;
}

.modal__close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: rgba(31, 36, 48, 0.08);
  font-size: 1.4rem;
}

.modal__image {
  width: 100%;
  border-radius: 18px;
}

.global-map__legend {
  display: grid;
  gap: 16px;
}

.global-map__legend article {
  padding: 22px;
}

.global-map__legend p,
.global-map__legend strong {
  margin: 0;
}

.global-map__legend strong {
  display: block;
  margin-bottom: 8px;
}

.split {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 24px;
  align-items: start;
}

.check-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 22px 0 0;
  list-style: none;
}

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

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 6px var(--accent-soft);
  transform: translateY(-50%);
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline article {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 18px;
  align-items: start;
  padding: 20px;
  border-radius: var(--radius-md);
}

.timeline span {
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  border-radius: 20px;
  font-size: 1.4rem;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), #ca6702);
}

.cta {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  padding: 30px;
}

.architecture {
  padding: 30px;
}

.architecture__steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 26px;
}

.architecture__steps article {
  padding: 18px;
  border-radius: var(--radius-md);
}

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

.capability {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
}

.capability__label {
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.capability span {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

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

.contact-card__en {
  margin-top: 8px;
  font-size: 0.96rem;
}

.contact-list {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.contact-list a {
  display: block;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  background: var(--surface-strong);
  border: 1px solid var(--line);
  transition: transform 180ms ease, border-color 180ms ease;
}

.contact-list a:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 95, 115, 0.22);
}

.contact-list span,
.contact-list strong {
  display: block;
}

.contact-list span {
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.contact-list strong {
  margin-top: 4px;
  font-size: 1.08rem;
}

.site-footer {
  padding: 10px 0 34px;
}

.footer {
  width: var(--container);
  margin: 0 auto;
  padding: 22px 24px;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.56);
  backdrop-filter: blur(16px);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
}

.footer__brand strong,
.footer__meta a,
.footer__meta span {
  display: block;
}

.footer__brand span,
.footer__meta span,
.footer__meta a {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.footer__meta {
  display: flex;
  gap: 44px;
  flex-wrap: wrap;
}

.footer__meta a:hover {
  color: var(--primary);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 680ms ease, transform 680ms ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay {
  transition-delay: 120ms;
}

.reveal--delay-2 {
  transition-delay: 240ms;
}

@keyframes floatBar {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulseRing {
  0% {
    opacity: 0.8;
    transform: scale(0.92);
  }
  100% {
    opacity: 0;
    transform: scale(1.08);
  }
}

@keyframes routeGlow {
  0% {
    filter: drop-shadow(0 0 0 rgba(10, 147, 150, 0.1));
    opacity: 0.5;
  }
  50% {
    filter: drop-shadow(0 0 6px rgba(10, 147, 150, 0.55));
    opacity: 1;
  }
  100% {
    filter: drop-shadow(0 0 0 rgba(10, 147, 150, 0.1));
    opacity: 0.5;
  }
}

@keyframes statusBlink {
  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(31, 191, 117, 0.35);
  }
  50% {
    opacity: 0.35;
    box-shadow: 0 0 0 8px rgba(31, 191, 117, 0.06);
  }
}

@keyframes globeRotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes globeFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes nodeBlink {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.08);
  }
  50% {
    opacity: 0.45;
    box-shadow: 0 0 0 12px rgba(255, 255, 255, 0.04);
  }
}

@keyframes routeFlow {
  0% {
    opacity: 0.4;
    filter: drop-shadow(0 0 0 rgba(10, 147, 150, 0.08));
  }
  50% {
    opacity: 1;
    filter: drop-shadow(0 0 8px rgba(10, 147, 150, 0.35));
  }
  100% {
    opacity: 0.4;
    filter: drop-shadow(0 0 0 rgba(10, 147, 150, 0.08));
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 960px) {
  .hero__grid,
  .split,
  .contact-layout,
  .feature-grid,
  .solution-grid,
  .architecture__steps,
  .metric-grid,
  .global-network,
  .showcase {
    grid-template-columns: 1fr;
  }

  .network-globe {
    min-height: 360px;
  }

  .network-globe__halo--1 {
    width: 300px;
    height: 300px;
  }

  .network-globe__halo--2 {
    width: 360px;
    height: 360px;
  }

  .network-globe__sphere {
    width: 248px;
    height: 248px;
  }

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

  .network-status-bar {
    grid-template-columns: 1fr;
  }

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

  .network-card__metrics {
    grid-template-columns: 1fr;
  }

  .nav {
    padding: 14px 0;
    align-items: center;
    flex-wrap: wrap;
  }

  .nav__toggle {
    display: inline-flex;
  }

  .nav__links {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    width: 100%;
    padding: 14px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(31, 36, 48, 0.08);
    box-shadow: 0 24px 50px rgba(20, 35, 52, 0.16);
    display: grid;
    gap: 10px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
  }

  .site-header.is-menu-open .nav__links {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav__links a,
  .nav__links .button {
    width: 100%;
    justify-content: center;
    margin: 0;
  }

  .brand {
    min-width: 0;
    flex: 1;
  }

  .brand__text strong {
    font-size: 0.96rem;
  }

  .brand__text span {
    font-size: 0.78rem;
  }

  .showcase__visual {
    min-height: 260px;
  }
}

@media (max-width: 640px) {
  :root {
    --container: min(100vw - 28px, 1180px);
  }

  .hero,
  .page-hero {
    padding-top: 46px;
  }

  .button {
    width: 100%;
  }

  .nav {
    min-height: 68px;
    gap: 14px;
  }

  .brand__mark {
    width: 40px;
    height: 40px;
  }

  .brand__text {
    min-width: 0;
  }

  .brand__text strong,
  .brand__text span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .hero__actions,
  .cta__actions {
    flex-direction: column;
  }

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

  .hero h1 {
    max-width: none;
    font-size: clamp(2.1rem, 10vw, 3rem);
  }

  .page-hero h1 {
    max-width: none;
    font-size: clamp(2rem, 8.6vw, 2.8rem);
  }

  .network-globe {
    min-height: 320px;
  }

  .network-globe__halo--1 {
    width: 250px;
    height: 250px;
  }

  .network-globe__halo--2 {
    width: 310px;
    height: 310px;
  }

  .network-globe__sphere {
    width: 210px;
    height: 210px;
  }

  .globe-tags {
    gap: 10px;
  }

  .globe-tags span {
    width: 100%;
    text-align: center;
  }

  .capability-orbit::before {
    width: 180px;
    height: 180px;
  }

  .capability-orbit::after {
    width: 230px;
    height: 230px;
  }

  .capability-orbit__core {
    width: 88px;
    height: 88px;
  }

  .showcase-diagram,
  .capability-orbit,
  .company-panel,
  .contact-banner {
    min-height: 240px;
  }

  .network-topology {
    min-height: 360px;
  }

  .network-node {
    width: 118px;
  }

  .network-node--left {
    left: 14px;
    top: 60%;
  }

  .network-node--right {
    right: 10px;
    top: 34%;
  }

  .network-node--top {
    left: calc(50% + 10px);
  }

  .network-node--bottom {
    left: calc(50% - 18px);
  }

  .map-node {
    font-size: 0.82rem;
  }
}