:root {
  --ink: #08111f;
  --ink-2: #132033;
  --muted: #5b6678;
  --line: #dfe5ec;
  --panel: #ffffff;
  --panel-soft: #f5f8fb;
  --teal: #00a8b5;
  --cyan: #2dd7f5;
  --green: #31c48d;
  --coral: #ff7a5c;
  --gold: #d8a949;
  --shadow: 0 22px 70px rgba(8, 17, 31, 0.14);
  color-scheme: light;
  font-family: Inter, "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #f8fafc;
  overflow-x: hidden;
}

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

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 76px;
  padding: 0 clamp(20px, 5vw, 64px);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.84);
  border-bottom: 1px solid rgba(8, 17, 31, 0.08);
  box-shadow: 0 14px 44px rgba(8, 17, 31, 0.1);
  backdrop-filter: blur(22px);
  animation: headerDrop 760ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.brand {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  width: 250px;
  min-width: 250px;
  height: 50px;
  padding: 0;
}

.brand-lockup {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(16px, 2.4vw, 34px);
  color: rgba(8, 17, 31, 0.68);
  font-size: 0.92rem;
  font-weight: 600;
}

.desktop-nav a:hover {
  color: var(--ink);
}

.desktop-nav a {
  position: relative;
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms ease;
}

.desktop-nav a:hover::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-width: 240px;
  gap: 12px;
}

.language-switch {
  display: flex;
  align-items: center;
  padding: 3px;
  background: rgba(8, 17, 31, 0.06);
  border: 1px solid rgba(8, 17, 31, 0.08);
  border-radius: 999px;
}

.language-switch button {
  min-width: 42px;
  height: 28px;
  padding: 0 10px;
  color: rgba(8, 17, 31, 0.56);
  font: inherit;
  font-size: 0.76rem;
  font-weight: 700;
  background: transparent;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
}

.language-switch button[aria-pressed="true"] {
  color: #fff;
  background: var(--ink);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  color: #07111f;
  font-weight: 800;
  line-height: 1;
  background: #fff;
  border: 1px solid rgba(8, 17, 31, 0.1);
  border-radius: 8px;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.12);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
}

.btn-small {
  min-height: 36px;
  padding: 0 14px;
  font-size: 0.84rem;
}

.btn-secondary {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.28);
  box-shadow: none;
}

.hero {
  position: relative;
  display: grid;
  align-items: end;
  min-height: 88vh;
  overflow: hidden;
  color: #fff;
  background: #07111f;
}

.hero-media,
.hero-media img,
.hero-overlay,
.hero-fx {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.86;
  transform: scale(1.03);
  animation: heroDrift 32s ease-in-out infinite alternate;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(7, 17, 31, 0.98) 0%, rgba(7, 17, 31, 0.86) 33%, rgba(7, 17, 31, 0.25) 73%, rgba(7, 17, 31, 0.55) 100%),
    linear-gradient(0deg, rgba(7, 17, 31, 0.96) 0%, rgba(7, 17, 31, 0.06) 45%, rgba(7, 17, 31, 0.78) 100%);
}

.hero-fx {
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
  mix-blend-mode: screen;
  opacity: 0.48;
}

.hero-fx::before,
.hero-fx::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.3;
}

.hero-fx::before {
  background:
    radial-gradient(circle at 68% 32%, rgba(45, 215, 245, 0.16), transparent 13%),
    radial-gradient(circle at 82% 58%, rgba(49, 196, 141, 0.1), transparent 12%),
    linear-gradient(115deg, transparent 18%, rgba(45, 215, 245, 0.08) 47%, transparent 68%);
  animation: fxGlowSweep 16s ease-in-out infinite alternate;
}

.hero-fx::after {
  background-image:
    linear-gradient(rgba(45, 215, 245, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 215, 245, 0.045) 1px, transparent 1px);
  background-size: 84px 84px;
  mask-image: linear-gradient(90deg, transparent 0%, #000 42%, #000 100%);
  animation: fxGridDrift 28s linear infinite;
}

.fx-node,
.fx-line,
.fx-scan {
  position: absolute;
  display: block;
}

.fx-node {
  width: 10px;
  height: 10px;
  background: #8df3ff;
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(45, 215, 245, 0.72), 0 0 30px rgba(45, 215, 245, 0.28);
  opacity: 0.56;
  animation: fxNodeFloat 9.5s ease-in-out infinite;
}

.fx-node-a {
  top: 19%;
  left: 69%;
  animation-delay: 0s;
}

.fx-node-b {
  top: 34%;
  left: 81%;
  width: 8px;
  height: 8px;
  animation-delay: 1.1s;
}

.fx-node-c {
  top: 58%;
  left: 73%;
  width: 12px;
  height: 12px;
  background: #70ffc8;
  box-shadow: 0 0 14px rgba(49, 196, 141, 0.66), 0 0 32px rgba(49, 196, 141, 0.26);
  animation-delay: 2s;
}

.fx-node-d {
  top: 48%;
  left: 91%;
  width: 7px;
  height: 7px;
  animation-delay: 2.8s;
}

.fx-line {
  width: 280px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(141, 243, 255, 0.55), transparent);
  opacity: 0;
  transform-origin: left center;
  animation: fxDataLine 9s ease-in-out infinite;
}

.fx-line-a {
  top: 37%;
  left: 66%;
  transform: rotate(25deg);
}

.fx-line-b {
  top: 61%;
  left: 71%;
  width: 240px;
  transform: rotate(-17deg);
  animation-delay: 1.8s;
}

.fx-scan {
  top: 11%;
  right: 0;
  width: 58%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(45, 215, 245, 0.42), transparent);
  opacity: 0;
  box-shadow: 0 0 18px rgba(45, 215, 245, 0.28);
  animation: fxScan 13s ease-in-out infinite;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(1620px, calc(100% - 40px));
  margin: 0 0 clamp(34px, 5vw, 64px) clamp(20px, 6vw, 82px);
  padding-top: 120px;
}

.hero-content .eyebrow,
.hero-content h1,
.hero-copy,
.hero-actions,
.hero-metrics div {
  opacity: 1;
  transform: translateY(0);
  animation: softLift 760ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.hero-content .eyebrow {
  animation-delay: 120ms;
}

.hero-content h1 {
  animation-delay: 240ms;
}

.hero-copy {
  animation-delay: 380ms;
}

.hero-actions {
  animation-delay: 520ms;
}

.hero-metrics div:nth-child(1) {
  animation-delay: 650ms;
}

.hero-metrics div:nth-child(2) {
  animation-delay: 730ms;
}

.hero-metrics div:nth-child(3) {
  animation-delay: 810ms;
}

.hero-metrics div:nth-child(4) {
  animation-delay: 890ms;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  max-width: 780px;
  font-size: clamp(3.1rem, 5.3vw, 5.2rem);
  line-height: 0.98;
  font-weight: 800;
}

html[lang="zh-CN"] h1 {
  max-width: 840px;
  font-size: clamp(2.9rem, 4.8vw, 4.65rem);
  line-height: 1.08;
}

html[lang="zh-CN"] .section h2,
html[lang="zh-CN"] .contact-section h2 {
  font-size: clamp(2rem, 3.45vw, 4rem);
  line-height: 1.12;
}

html[lang="zh-CN"] .hero-copy,
html[lang="zh-CN"] .geo-copy p,
html[lang="zh-CN"] .section-copy,
html[lang="zh-CN"] .section-lede,
html[lang="zh-CN"] .service-card p,
html[lang="zh-CN"] .solution-list p,
html[lang="zh-CN"] .platform-panel p,
html[lang="zh-CN"] .contact-section p {
  line-height: 1.9;
}

html[lang="zh-CN"] .service-card h3,
html[lang="zh-CN"] .solution-list h3 {
  font-weight: 750;
  line-height: 1.34;
}

.hero-copy {
  max-width: 720px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.79);
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  max-width: 1600px;
  margin-top: 42px;
}

.hero-metrics div {
  padding: 18px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  transition: transform 220ms ease, background 220ms ease, border-color 220ms ease;
}

.hero-metrics div:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(45, 215, 245, 0.42);
}

.hero-metrics .metric-geo {
  background:
    linear-gradient(135deg, rgba(45, 215, 245, 0.2), rgba(49, 196, 141, 0.12)),
    rgba(255, 255, 255, 0.1);
  border-color: rgba(45, 215, 245, 0.46);
  box-shadow: 0 18px 52px rgba(0, 168, 181, 0.16);
}

.hero-metrics .metric-geo strong {
  color: var(--cyan);
}

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

.hero-metrics strong {
  font-size: clamp(1.15rem, 2vw, 1.65rem);
  line-height: 1;
}

.hero-metrics span {
  margin-top: 7px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.86rem;
}

.geo-spotlight {
  position: relative;
  display: grid;
  grid-template-columns: minmax(300px, 0.95fr) minmax(360px, 1.05fr);
  gap: clamp(32px, 6vw, 86px);
  align-items: center;
  overflow: hidden;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(45, 215, 245, 0.11) 1px, transparent 1px),
    linear-gradient(0deg, rgba(45, 215, 245, 0.08) 1px, transparent 1px),
    linear-gradient(135deg, #06111f 0%, #0a2430 54%, #07504d 100%);
  background-size: 34px 34px, 34px 34px, auto;
}

.geo-spotlight::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(120deg, transparent 0%, rgba(45, 215, 245, 0.18) 42%, transparent 62%);
  transform: translateX(-42%);
  animation: geoSweep 10s ease-in-out infinite;
}

.geo-copy,
.geo-visual {
  position: relative;
  z-index: 1;
}

.geo-copy h2 {
  max-width: 760px;
}

.geo-copy p:not(.eyebrow) {
  max-width: 680px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.74);
  font-size: clamp(1rem, 1.3vw, 1.16rem);
  line-height: 1.78;
}

.geo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.geo-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 9px 13px;
  color: rgba(255, 255, 255, 0.88);
  font-weight: 750;
  font-size: 0.86rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
}

.geo-visual {
  display: grid;
  gap: 16px;
  padding: clamp(18px, 3vw, 30px);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  box-shadow: 0 26px 76px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(18px);
}

.geo-flow-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  min-height: 92px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
}

.geo-flow-focus {
  color: var(--ink);
  background: linear-gradient(135deg, #ffffff, #9ef3f0);
  border-color: rgba(45, 215, 245, 0.5);
  box-shadow: 0 18px 42px rgba(45, 215, 245, 0.16);
}

.geo-flow-step > span {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  color: #fff;
  background: linear-gradient(135deg, var(--teal), var(--green));
  border-radius: 8px;
}

.geo-flow-focus > span {
  color: #fff;
  background: linear-gradient(135deg, var(--ink), var(--teal));
}

.geo-flow-step strong,
.geo-flow-step small {
  display: block;
}

.geo-flow-step strong {
  font-size: clamp(1rem, 1.4vw, 1.22rem);
  line-height: 1.2;
}

.geo-flow-step small {
  margin-top: 5px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.82rem;
  font-weight: 650;
}

.geo-flow-focus small {
  color: rgba(8, 17, 31, 0.62);
}

.geo-flow-arrow {
  position: relative;
  width: 2px;
  height: 28px;
  margin: -4px 0 -4px 41px;
  background: linear-gradient(180deg, var(--cyan), var(--green));
  border-radius: 999px;
}

.geo-flow-arrow::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -3px;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--green);
  border-bottom: 2px solid var(--green);
  transform: translateX(-50%) rotate(45deg);
}

.section {
  padding: clamp(64px, 9vw, 116px) clamp(20px, 6vw, 82px);
}

.intro-section {
  display: grid;
  grid-template-columns: minmax(260px, 0.85fr) minmax(320px, 1fr);
  gap: clamp(28px, 6vw, 96px);
  align-items: end;
  color: #fff;
  background: var(--ink);
}

.section-heading {
  max-width: 780px;
}

.section h2,
.contact-section h2 {
  font-size: clamp(2rem, 4vw, 4.6rem);
  line-height: 1;
  font-weight: 800;
}

.section-copy,
.intro-section .section-copy {
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  line-height: 1.8;
}

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

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 38px;
}

.service-card {
  min-height: 220px;
  padding: 28px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 168, 181, 0.38);
  box-shadow: var(--shadow);
}

.service-card:nth-child(2n) {
  border-top-color: rgba(0, 168, 181, 0.45);
}

.service-card:nth-child(3n) {
  border-top-color: rgba(49, 196, 141, 0.38);
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  color: #fff;
  background: linear-gradient(135deg, var(--ink), #0c3944);
  border-radius: 8px;
  box-shadow: 0 16px 38px rgba(8, 17, 31, 0.16);
  transition: transform 260ms ease, background 260ms ease;
}

.card-icon svg,
.solution-icon svg,
.diagram-node svg,
.geo-flow-step svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-card:hover .card-icon {
  transform: rotate(-4deg) scale(1.05);
  background: linear-gradient(135deg, var(--ink), var(--teal));
}

.service-card h3,
.solution-list h3 {
  margin-top: 24px;
  font-size: 1.24rem;
  line-height: 1.2;
}

.service-card p,
.solution-list p,
.platform-panel p,
.contact-section p {
  color: var(--muted);
  line-height: 1.72;
}

.solutions-section {
  display: block;
  background: #fff;
}

.solutions-section h2 {
  max-width: 980px;
}

.section-lede {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.25vw, 1.12rem);
  line-height: 1.75;
}

.solution-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 40px;
  background: transparent;
  border: 0;
}

.solution-list article {
  position: relative;
  min-height: 250px;
  padding: 32px;
  background: linear-gradient(180deg, #ffffff, #f8fbfd);
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: background 220ms ease, transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.solution-list .solution-feature {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 24px;
  row-gap: 8px;
  align-items: center;
  min-height: 178px;
  background:
    radial-gradient(circle at 8% 18%, rgba(45, 215, 245, 0.18), transparent 30%),
    linear-gradient(135deg, #f5fcfd, #ffffff 48%, #f3fbf7);
  border-color: rgba(0, 168, 181, 0.32);
  box-shadow: 0 18px 56px rgba(0, 168, 181, 0.1);
}

.solution-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 22px;
  color: var(--teal);
  background: rgba(45, 215, 245, 0.1);
  border: 1px solid rgba(0, 168, 181, 0.16);
  border-radius: 8px;
}

.solution-list .solution-feature .solution-icon {
  grid-row: 1 / span 2;
  width: 66px;
  height: 66px;
  margin-bottom: 0;
  color: #fff;
  background: linear-gradient(135deg, var(--ink), var(--teal));
  border-color: rgba(45, 215, 245, 0.22);
  box-shadow: 0 18px 42px rgba(8, 17, 31, 0.15);
}

.solution-list article::before {
  content: "";
  position: absolute;
  top: 0;
  left: 32px;
  width: 54px;
  background: linear-gradient(180deg, var(--cyan), var(--green));
  height: 3px;
  border-radius: 999px;
}

.solution-list article:hover {
  background: #f7fbfc;
  border-color: rgba(0, 168, 181, 0.28);
  box-shadow: 0 16px 46px rgba(8, 17, 31, 0.08);
  transform: translateY(-5px);
}

.solution-list h3 {
  margin-top: 0;
}

.platform-section {
  color: #fff;
  background: linear-gradient(135deg, #07111f 0%, #101b2b 52%, #092b35 100%);
}

.platform-panel {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(320px, 1fr);
  gap: clamp(30px, 6vw, 90px);
  align-items: center;
}

.platform-panel p {
  max-width: 620px;
  color: rgba(255, 255, 255, 0.72);
}

.platform-visual-wrap {
  display: grid;
  gap: 18px;
}

.platform-diagram {
  position: relative;
  min-height: 300px;
  padding: 24px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 42%, rgba(45, 215, 245, 0.18), transparent 30%),
    rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
}

.diagram-node {
  position: absolute;
  z-index: 2;
  display: grid;
  place-items: center;
  gap: 8px;
  width: 116px;
  height: 92px;
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  backdrop-filter: blur(12px);
}

.diagram-node span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: var(--cyan);
}

.diagram-node strong {
  font-size: 0.82rem;
}

.diagram-business {
  top: 32px;
  left: 28px;
}

.diagram-gateway {
  top: 108px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--ink);
  background: linear-gradient(135deg, #ffffff, #91f0ee);
}

.diagram-gateway span {
  color: var(--ink);
}

.diagram-model {
  right: 28px;
  top: 32px;
}

.diagram-knowledge {
  right: 28px;
  bottom: 28px;
}

.diagram-line {
  position: absolute;
  z-index: 1;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(45, 215, 245, 0.72), transparent);
  transform-origin: left center;
}

.line-a {
  top: 100px;
  left: 118px;
  width: 210px;
  transform: rotate(18deg);
}

.line-b {
  top: 150px;
  left: 52%;
  width: 205px;
  transform: rotate(-21deg);
}

.line-c {
  top: 185px;
  left: 52%;
  width: 205px;
  transform: rotate(24deg);
}

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

.capability-stack span {
  min-height: 66px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px;
  color: rgba(255, 255, 255, 0.88);
  font-weight: 700;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  transition: transform 220ms ease, background 220ms ease, border-color 220ms ease;
}

.capability-stack span::before {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 16px rgba(45, 215, 245, 0.48);
}

.capability-stack span:hover {
  transform: translateX(4px);
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(45, 215, 245, 0.34);
}

.capability-stack span:nth-child(3n + 1) {
  border-left-color: var(--green);
}

.capability-stack span:nth-child(3n + 2) {
  border-left-color: var(--cyan);
}

.audience-section {
  background: #fff;
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 36px;
}

.audience-grid div {
  position: relative;
  min-height: 180px;
  padding: 72px 22px 22px;
  color: var(--ink-2);
  font-weight: 750;
  line-height: 1.45;
  background: linear-gradient(180deg, #f7fafc, #fff);
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.audience-grid div::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 22px;
  width: 34px;
  height: 34px;
  background:
    radial-gradient(circle at 50% 50%, var(--cyan) 0 34%, transparent 36%),
    conic-gradient(from 90deg, var(--cyan), var(--green), var(--cyan));
  border-radius: 8px;
  opacity: 0.9;
}

.audience-grid div:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 168, 181, 0.34);
  box-shadow: 0 16px 38px rgba(8, 17, 31, 0.09);
}

.process-section {
  background:
    linear-gradient(90deg, rgba(45, 215, 245, 0.08), transparent 34%, rgba(49, 196, 141, 0.08)),
    #eef4f7;
}

.process-list {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin: 38px 0 0;
  padding: 0;
  list-style: none;
  background: transparent;
  border: 0;
}

.process-list::before {
  content: "";
  position: absolute;
  left: 4%;
  right: 4%;
  top: 41px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 168, 181, 0.36), transparent);
}

.process-list li {
  position: relative;
  min-height: 230px;
  padding: 76px 26px 28px;
  background: #fff;
  border: 1px solid rgba(205, 217, 226, 0.9);
  border-radius: 8px;
  counter-increment: item;
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.process-list li:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 44px rgba(8, 17, 31, 0.1);
}

.process-list li::before {
  content: "0" counter(item);
  position: absolute;
  top: 22px;
  left: 26px;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-bottom: 0;
  color: #fff;
  background: var(--teal);
  border-radius: 50%;
  box-shadow: 0 0 0 8px #eef4f7;
  color: var(--teal);
  color: #fff;
  font-weight: 800;
}

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

.process-list strong {
  font-size: 1.1rem;
}

.process-list span {
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.65;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(320px, 440px);
  gap: 34px;
  align-items: center;
  padding: clamp(64px, 9vw, 110px) clamp(20px, 6vw, 82px);
  color: #fff;
  background: #07111f;
}

.contact-section p {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.7);
}

.contact-card {
  display: grid;
  gap: 14px;
  padding: 28px;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  transition: transform 260ms ease, border-color 260ms ease, background 260ms ease;
}

.contact-card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.11);
  border-color: rgba(45, 215, 245, 0.35);
}

.contact-card span {
  color: rgba(255, 255, 255, 0.72);
}

.contact-card > a:not(.btn) {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 1.35rem;
  font-weight: 800;
}

.contact-card .btn {
  margin-top: 10px;
  background: var(--cyan);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px clamp(20px, 6vw, 82px);
  color: rgba(255, 255, 255, 0.66);
  background: #050b14;
  font-size: 0.88rem;
}

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

.reveal.is-visible {
  animation: revealLift 680ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
  animation-delay: var(--reveal-delay, 0ms);
}

@keyframes headerDrop {
  0% {
    opacity: 0;
    transform: translateY(-18px);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes softLift {
  0% {
    transform: translateY(18px);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes revealLift {
  0% {
    transform: translateY(24px);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroDrift {
  0% {
    transform: scale(1.03) translate3d(0, 0, 0);
  }

  100% {
    transform: scale(1.06) translate3d(-0.8%, -0.5%, 0);
  }
}

@keyframes markPulse {
  0%,
  100% {
    box-shadow: 0 0 0 rgba(45, 215, 245, 0);
  }

  50% {
    box-shadow: 0 0 28px rgba(45, 215, 245, 0.46);
  }
}

@keyframes fxGlowSweep {
  0% {
    transform: translate3d(1%, -1%, 0) scale(1);
    opacity: 0.28;
  }

  100% {
    transform: translate3d(-2%, 2%, 0) scale(1.06);
    opacity: 0.36;
  }
}

@keyframes fxGridDrift {
  0% {
    background-position: 0 0, 0 0;
  }

  100% {
    background-position: 84px 84px, 84px 84px;
  }
}

@keyframes fxNodeFloat {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.58;
  }

  50% {
    transform: translate3d(10px, -14px, 0) scale(1.28);
    opacity: 0.72;
  }
}

@keyframes fxDataLine {
  0%,
  100% {
    opacity: 0;
    clip-path: inset(0 100% 0 0);
  }

  42%,
  64% {
    opacity: 0.42;
    clip-path: inset(0 0 0 0);
  }
}

@keyframes fxScan {
  0%,
  20% {
    opacity: 0;
    transform: translateY(0);
  }

  42% {
    opacity: 0.38;
  }

  72%,
  100% {
    opacity: 0;
    transform: translateY(560px);
  }
}

@keyframes geoSweep {
  0%,
  22% {
    transform: translateX(-48%);
    opacity: 0;
  }

  48% {
    opacity: 0.5;
  }

  78%,
  100% {
    transform: translateX(48%);
    opacity: 0;
  }
}

@media (max-width: 1080px) {
  .desktop-nav {
    display: none;
  }

  .header-actions {
    min-width: 0;
  }

  .brand {
    width: 218px;
    min-width: 218px;
  }

  .language-switch button {
    min-width: 44px;
    height: 44px;
  }

  .btn-small {
    min-height: 44px;
  }

  .hero-content {
    width: calc(100% - 64px);
    margin-left: 32px;
  }

  .hero-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: 760px;
  }

  .geo-spotlight {
    grid-template-columns: 1fr;
  }

  .geo-visual {
    max-width: 720px;
  }

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

  .audience-grid,
  .process-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .platform-diagram {
    min-height: 270px;
  }

  .diagram-node {
    width: 104px;
    height: 84px;
  }

  .process-list::before {
    display: none;
  }
}

@media (max-width: 720px) {
  .site-header {
    height: auto;
    min-height: 64px;
    padding: 10px 14px;
    gap: 10px;
  }

  .brand {
    width: min(190px, 52vw);
    min-width: 0;
    height: 46px;
    padding: 4px 9px;
  }

  .header-actions {
    gap: 8px;
  }

  .language-switch button {
    min-width: 44px;
    height: 44px;
    padding: 0 8px;
  }

  .btn-small {
    display: none;
  }

  .hero {
    min-height: 100svh;
    align-items: end;
  }

  .hero-media img {
    object-position: 62% center;
    animation-duration: 24s;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(7, 17, 31, 0.97) 0%, rgba(7, 17, 31, 0.82) 55%, rgba(7, 17, 31, 0.44) 100%),
      linear-gradient(0deg, rgba(7, 17, 31, 0.97) 0%, rgba(7, 17, 31, 0.28) 56%, rgba(7, 17, 31, 0.8) 100%);
  }

  .hero-fx {
    opacity: 0.62;
  }

  .fx-node-a {
    left: 69%;
  }

  .fx-node-b,
  .fx-node-d {
    left: 88%;
  }

  .fx-line {
    width: 170px;
  }

  .fx-scan {
    width: 78%;
  }

  .hero-content {
    width: calc(100% - 28px);
    margin: 0 14px 28px;
    padding-top: 98px;
  }

  h1 {
    font-size: clamp(2.18rem, 11vw, 3rem);
    line-height: 1.02;
  }

  .hero-copy {
    margin-top: 20px;
    line-height: 1.62;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
    margin-top: 24px;
  }

  .hero-metrics div {
    padding: 14px 16px;
  }

  .section,
  .contact-section {
    padding: 56px 18px;
    overflow-x: hidden;
  }

  .intro-section,
  .platform-panel,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .service-grid,
  .audience-grid,
  .process-list,
  .capability-stack {
    grid-template-columns: 1fr;
  }

  .geo-spotlight {
    gap: 28px;
  }

  .geo-copy p:not(.eyebrow) {
    margin-top: 18px;
  }

  .geo-visual {
    padding: 16px;
  }

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

  .solution-list .solution-feature {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .solution-list .solution-feature .solution-icon {
    grid-row: auto;
    margin-bottom: 6px;
  }

  .platform-diagram {
    min-height: 380px;
  }

  .diagram-node {
    width: 112px;
    height: 86px;
  }

  .diagram-business {
    top: 24px;
    left: 18px;
  }

  .diagram-model {
    top: 24px;
    right: 18px;
  }

  .diagram-gateway {
    top: 145px;
  }

  .diagram-knowledge {
    right: 50%;
    bottom: 24px;
    transform: translateX(50%);
  }

  .line-a,
  .line-b,
  .line-c {
    display: none;
  }

  .service-card,
  .process-list li,
  .audience-grid div {
    min-height: auto;
  }

  .section h2,
  .contact-section h2 {
    font-size: clamp(2rem, 12vw, 3.2rem);
    line-height: 1.05;
  }

  html[lang="zh-CN"] h1 {
    font-size: clamp(2.05rem, 9.2vw, 2.72rem);
    line-height: 1.14;
  }

  html[lang="zh-CN"] .section h2,
  html[lang="zh-CN"] .contact-section h2 {
    font-size: clamp(1.85rem, 9.5vw, 2.75rem);
    line-height: 1.18;
  }

  .site-footer {
    display: grid;
    gap: 8px;
  }
}

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

  .reveal,
  .hero-content .eyebrow,
  .hero-content h1,
  .hero-copy,
  .hero-actions,
  .hero-metrics div {
    opacity: 1;
    transform: none;
  }
}