:root {
  --ink: #0c1728;
  --muted: #667085;
  --line: #dce5ee;
  --blue: #0b66d8;
  --cyan: #10b8d6;
  --green: #18a875;
  --bg: #f5f8fb;
  --white: #ffffff;
  --shadow: 0 18px 42px rgba(15, 34, 58, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  font-size: 15px;
  line-height: 1.65;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(220, 229, 238, 0.9);
  backdrop-filter: blur(18px);
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 6px 24px;
  color: var(--muted);
  font-size: 13px;
}

.topbar a {
  color: #29415f;
  font-weight: 700;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 24px;
}

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

.brand strong {
  display: block;
  font-size: 18px;
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: #14233b;
  font-size: 14px;
  font-weight: 700;
}

.nav-links a {
  position: relative;
}

.nav-links a::after {
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 2px;
  background: var(--blue);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.2s ease;
}

.nav-links a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
}

.hero {
  position: relative;
  min-height: 490px;
  overflow: hidden;
  color: var(--white);
  background: #07182c;
}

.hero-media,
.hero-slide {
  position: absolute;
  inset: 0;
}

.hero-slide {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.02);
  transition: opacity 1s ease, transform 5s ease;
}

.hero-slide.active {
  opacity: 1;
  transform: scale(1);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 17, 34, 0.92), rgba(5, 25, 46, 0.68) 48%, rgba(5, 17, 34, 0.2)),
    linear-gradient(180deg, rgba(5, 17, 34, 0.16), rgba(5, 17, 34, 0.72));
}

.hero-content {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 78px 24px 116px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 700px;
  margin: 0;
  font-size: clamp(28px, 3.3vw, 42px);
  line-height: 1.18;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 640px;
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 8px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.btn.primary {
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: var(--white);
  box-shadow: 0 18px 34px rgba(11, 102, 216, 0.28);
}

.btn.ghost {
  border: 1px solid rgba(255, 255, 255, 0.42);
  color: var(--white);
}

.wide {
  width: 100%;
}

.text-link {
  display: inline-flex;
  width: fit-content;
  margin-top: 16px;
  color: var(--blue);
  font-weight: 900;
}

.text-link::after {
  margin-left: 6px;
  content: ">";
}

.text-link.light {
  color: var(--cyan);
}

.hero-metrics {
  position: absolute;
  left: 50%;
  bottom: 0;
  display: grid;
  width: min(calc(100% - 48px), 1200px);
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid rgba(220, 229, 238, 0.9);
  border-radius: 8px 8px 0 0;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.94);
  color: var(--ink);
  box-shadow: var(--shadow);
}

.hero-metrics div {
  padding: 16px 22px;
  border-right: 1px solid var(--line);
}

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

.hero-metrics strong {
  display: block;
  color: var(--blue);
  font-size: 22px;
  line-height: 1;
}

.hero-metrics span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

.section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 44px 24px;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 20px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.25;
}

.inline-heading {
  display: grid;
  max-width: none;
  grid-template-columns: 0.8fr 1fr;
  gap: 36px;
  align-items: end;
}

.inline-heading > p {
  margin: 0 0 4px;
  color: var(--muted);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr;
  gap: 28px;
  align-items: stretch;
}

.intro-copy {
  padding-right: 24px;
  color: #344054;
  font-size: 16px;
}

.value-panel {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.value-panel span {
  color: var(--muted);
  font-size: 14px;
}

.value-panel strong {
  display: block;
  margin: 16px 0 12px;
  font-size: 26px;
  line-height: 1.25;
}

.value-panel p {
  margin: 0;
  color: var(--muted);
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.focus-grid article {
  padding: 20px;
  background: var(--white);
}

.focus-grid span,
.process-track span {
  color: var(--cyan);
  font-weight: 900;
}

.focus-grid strong,
.process-track strong {
  display: block;
  margin: 8px 0 6px;
  font-size: 18px;
}

.focus-grid p,
.process-track p,
.contact-copy p {
  margin: 0;
  color: var(--muted);
}

.home-brief {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 18px;
  padding-top: 36px;
  padding-bottom: 36px;
}

.brief-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.brief-card h2 {
  margin: 0 0 10px;
  font-size: 24px;
  line-height: 1.25;
}

.brief-card p:last-child {
  margin: 0;
  color: var(--muted);
}

.brief-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.brief-list a {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 74px;
  padding: 16px 18px;
  background: var(--white);
  color: #1d2939;
  font-weight: 800;
}

.brief-list span {
  color: var(--blue);
  font-weight: 900;
}

.license-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.license-summary div {
  min-height: 86px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.88);
}

.license-summary .wide-info {
  grid-column: span 2;
}

.license-summary span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 13px;
}

.license-summary strong {
  display: block;
  color: #1d2939;
  font-size: 15px;
  line-height: 1.55;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.service-card {
  min-height: 198px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
  border-color: rgba(11, 102, 216, 0.36);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: #e8f3ff;
  color: var(--blue);
  font-weight: 900;
}

.service-card h3,
.solution-layout h3 {
  margin: 14px 0 8px;
  font-size: 18px;
}

.service-card p,
.solution-layout p {
  margin: 0;
  color: var(--muted);
}

.capability-strip {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 1px;
  margin-top: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.capability-strip span {
  min-height: 48px;
  display: grid;
  place-items: center;
  background: var(--white);
  color: #344054;
  font-size: 14px;
  font-weight: 700;
}

.solutions {
  max-width: none;
  background: #08172a;
  color: var(--white);
}

.solutions .section-heading,
.solution-layout {
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
}

.solution-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.solution-layout article {
  display: grid;
  grid-template-columns: 70px 0.42fr 1fr auto;
  gap: 22px;
  align-items: center;
  min-height: 94px;
  padding: 18px 22px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.solution-layout span {
  color: var(--cyan);
  font-size: 22px;
  font-weight: 900;
}

.solution-layout h3 {
  margin: 0;
}

.solution-layout p {
  color: rgba(255, 255, 255, 0.72);
}

.coverage-panel {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: stretch;
}

.coverage-panel.large {
  margin-bottom: 24px;
}

.china-map-placeholder {
  position: relative;
  min-height: 410px;
  overflow: hidden;
  border: 1px solid #d6e3ee;
  border-radius: 8px;
  background: #eaf7fc;
  box-shadow: 0 16px 38px rgba(15, 34, 58, 0.08);
}

.china-map-placeholder::before {
  display: none;
}

.china-map-placeholder::after {
  display: none;
}

.china-map-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.14);
  transform-origin: center center;
}

.map-node {
  position: absolute;
  z-index: 1;
  display: block;
  padding: 5px 9px;
  border: 1px solid rgba(11, 102, 216, 0.16);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.94);
  color: #0f2a44;
  font-size: 12px;
  font-weight: 900;
  line-height: 1.2;
  box-shadow: 0 10px 24px rgba(10, 54, 92, 0.14);
  transform: translate(var(--label-x, 0), var(--label-y, 0));
}

.map-node::before {
  position: absolute;
  left: calc(var(--label-x, 0px) * -1);
  top: calc(var(--label-y, 0px) * -1);
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--blue);
  box-shadow: 0 0 0 5px rgba(11, 102, 216, 0.14);
  content: "";
  transform: translate(-50%, -50%);
}

.map-node.central {
  left: 61.7%;
  top: calc(60.3% + 3px);
  --label-x: 10px;
  --label-y: -15px;
  border-color: rgba(11, 102, 216, 0.22);
  background: #0b66d8;
  color: var(--white);
}

.map-node.central::before {
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.22);
}

.map-node.north {
  left: calc(65% - 10px);
  top: 35.6%;
  --label-x: 10px;
  --label-y: -18px;
}

.map-node.south {
  left: calc(68.8% - 28px);
  top: calc(78.6% - 8px);
  --label-x: 10px;
  --label-y: -6px;
}

.map-node.west {
  left: 32.6%;
  top: 57.4%;
  --label-x: -62px;
  --label-y: -16px;
}

.coverage-copy {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.coverage-copy span {
  color: var(--muted);
  font-size: 14px;
}

.coverage-copy strong {
  display: block;
  margin: 14px 0 12px;
  font-size: 22px;
  line-height: 1.25;
}

.coverage-copy p {
  margin: 0 0 22px;
  color: var(--muted);
}

.process-track {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.process-track div {
  min-height: 174px;
  padding: 20px;
  background: var(--white);
}

.credentials {
  padding-top: 48px;
}

.contact-section {
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  gap: 28px;
  align-items: center;
  padding-bottom: 70px;
}

.contact-copy h2 {
  margin: 0 0 12px;
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.2;
}

.contact-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.contact-card dl {
  margin: 0 0 22px;
}

.contact-card div {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.contact-card div:first-child {
  padding-top: 0;
}

.contact-card dt {
  color: var(--muted);
}

.contact-card dd {
  margin: 0;
  font-weight: 800;
}

.contact-card a:not(.btn) {
  color: var(--blue);
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) auto;
  gap: 24px;
  align-items: start;
  padding: 28px max(24px, calc((100vw - 1200px) / 2 + 24px));
  background: #061120;
  color: rgba(255, 255, 255, 0.68);
}

.site-footer strong,
.site-footer span {
  display: block;
}

.site-footer strong {
  color: var(--white);
}

.footer-brand a,
.footer-links a {
  display: block;
  color: rgba(255, 255, 255, 0.68);
}

.footer-brand a {
  margin-top: 10px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 28px;
}

.footer-links strong {
  margin-bottom: 8px;
}

.site-footer p {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 13px;
}

.page-hero {
  position: relative;
  min-height: 320px;
  overflow: hidden;
  color: var(--white);
  background: #07182c;
}

.page-hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 17, 34, 0.9), rgba(5, 25, 46, 0.64), rgba(5, 17, 34, 0.2)),
    linear-gradient(180deg, rgba(5, 17, 34, 0.12), rgba(5, 17, 34, 0.74));
  content: "";
}

.page-hero > div {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 86px 24px 70px;
}

.page-hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.16;
}

.page-hero p:not(.eyebrow) {
  max-width: 700px;
  margin: 16px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
}

.detail-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 34px;
  align-items: start;
}

.side-nav {
  position: sticky;
  top: 96px;
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.side-nav a {
  padding: 13px 16px;
  background: var(--white);
  color: #344054;
  font-weight: 800;
}

.side-nav a:hover {
  color: var(--blue);
}

.detail-content {
  display: grid;
  gap: 22px;
}

.detail-block,
.detail-card,
.solution-detail-grid article {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.detail-block h2,
.detail-card h2,
.solution-detail-grid h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 2.6vw, 28px);
  line-height: 1.22;
}

.detail-block p,
.detail-card p,
.solution-detail-grid p {
  margin: 0 0 12px;
  color: var(--muted);
}

.detail-block p:last-child,
.detail-card p:last-child {
  margin-bottom: 0;
}

.split-block {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 24px;
}

.value-list,
.feature-grid,
.solution-detail-grid {
  display: grid;
  gap: 12px;
}

.value-list article,
.feature-grid article {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(245, 248, 251, 0.9);
}

.value-list span,
.detail-card > span,
.solution-detail-grid article > span {
  color: var(--cyan);
  font-weight: 900;
}

.value-list strong {
  display: block;
  margin: 8px 0 4px;
  font-size: 18px;
}

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

.feature-grid h3 {
  margin: 0 0 8px;
  font-size: 19px;
}

.callout-band {
  background: #071523;
  color: var(--white);
}

.callout-band p {
  color: rgba(255, 255, 255, 0.76);
}

.service-detail-list {
  gap: 14px;
}

.detail-card ul {
  display: grid;
  gap: 6px;
  margin: 16px 0 0;
  padding-left: 20px;
  color: #344054;
}

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

.solution-detail-grid dl {
  display: grid;
  gap: 1px;
  margin: 18px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.solution-detail-grid dl div {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 14px;
  padding: 14px;
  background: rgba(245, 248, 251, 0.9);
}

.solution-detail-grid dt {
  color: var(--muted);
}

.solution-detail-grid dd {
  margin: 0;
  font-weight: 800;
}

.credential-page {
  margin-top: 0;
}

/* 首页根据正式官网蓝本重构 */
.home-header {
  background: rgba(255, 255, 255, 0.94);
}

.home-header .navbar {
  min-height: 72px;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 18px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--white);
  font-size: 14px;
  font-weight: 800;
}

.home-hero {
  min-height: 640px;
}

.home-hero .hero-overlay {
  background:
    linear-gradient(90deg, rgba(2, 16, 39, 0.94), rgba(7, 32, 65, 0.74) 54%, rgba(5, 17, 34, 0.28)),
    linear-gradient(180deg, rgba(5, 17, 34, 0.12), rgba(5, 17, 34, 0.66));
}

.home-hero .hero-content {
  padding-top: 138px;
  padding-bottom: 126px;
}

.home-hero h1 {
  max-width: 760px;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.18;
}

.home-hero .hero-copy {
  max-width: 660px;
  font-size: 17px;
}

.centered {
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.capability-section {
  padding-top: 76px;
  padding-bottom: 76px;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.capability-card {
  min-height: 250px;
  padding: 26px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  text-align: center;
  transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.capability-card:hover {
  border-color: rgba(11, 102, 216, 0.32);
  box-shadow: 0 18px 38px rgba(15, 34, 58, 0.1);
  transform: translateY(-5px);
}

.capability-icon {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 auto 18px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 900;
  line-height: 1;
}

.capability-icon::after {
  display: block;
  width: 26px;
  height: 2px;
  border-radius: 999px;
  background: rgba(11, 102, 216, 0.24);
  content: "";
}

.capability-card h3 {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 19px;
}

.capability-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.why-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 54px;
  align-items: center;
  max-width: none;
  padding-left: max(24px, calc((100vw - 1200px) / 2 + 24px));
  padding-right: max(24px, calc((100vw - 1200px) / 2 + 24px));
  background: #eef3f7;
}

.why-visual {
  position: relative;
}

.why-visual::before {
  position: absolute;
  left: -28px;
  top: -28px;
  width: 170px;
  height: 170px;
  border-radius: 50%;
  background: rgba(11, 102, 216, 0.1);
  content: "";
  filter: blur(14px);
}

.why-visual img {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.why-copy h2 {
  margin: 0 0 24px;
  color: var(--ink);
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.25;
}

.why-item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.why-item span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: var(--white);
  color: var(--blue);
  font-weight: 900;
  box-shadow: 0 10px 24px rgba(15, 34, 58, 0.08);
}

.why-item h3 {
  margin: 0 0 4px;
  font-size: 18px;
}

.why-item p {
  margin: 0;
  color: var(--muted);
}

.solution-strip {
  padding-top: 72px;
  padding-bottom: 72px;
}

.strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.strip-grid a {
  min-height: 96px;
  display: grid;
  place-items: center;
  padding: 18px;
  background: var(--white);
  color: #1d2939;
  font-weight: 900;
  text-align: center;
}

.strip-grid a:hover {
  color: var(--blue);
}

.cta-section {
  padding-top: 36px;
  padding-bottom: 78px;
}

.cta-panel {
  position: relative;
  overflow: hidden;
  padding: 60px 40px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(0, 23, 54, 0.96), rgba(0, 43, 91, 0.9)),
    url("./assets/hero-tech.png") center / cover;
  color: var(--white);
  text-align: center;
}

.cta-panel h2 {
  max-width: 760px;
  margin: 0 auto 14px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.2;
}

.cta-panel p {
  max-width: 660px;
  margin: 0 auto 28px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 16px;
}

.cta-panel .btn.primary {
  background: var(--white);
  color: var(--ink);
  box-shadow: none;
}

.home-footer {
  background: #061120;
}

@media (max-width: 900px) {
  .topbar {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 75px;
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--white);
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 12px 10px;
  }

  .hero {
    min-height: 620px;
  }

  .hero-content {
    padding-top: 78px;
  }

  .hero-metrics,
  .intro-grid,
  .inline-heading,
  .contact-section,
  .home-brief {
    grid-template-columns: 1fr;
  }

  .service-grid,
  .focus-grid,
  .process-track,
  .license-summary {
    grid-template-columns: 1fr 1fr;
  }

  .solution-layout article {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .coverage-panel,
  .detail-layout,
  .split-block,
  .solution-detail-grid {
    grid-template-columns: 1fr;
  }

  .side-nav {
    position: static;
    grid-template-columns: repeat(2, 1fr);
  }

  .page-hero > div {
    padding-top: 78px;
  }

  .china-map-placeholder {
    min-height: 320px;
  }

  .china-map-image {
    inset: 0;
    width: 100%;
    height: 100%;
  }

  .nav-cta {
    display: none;
  }

  .home-hero {
    min-height: 600px;
  }

  .home-hero .hero-content {
    padding-top: 96px;
    padding-bottom: 96px;
  }

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

  .why-section {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .license-summary .wide-info {
    grid-column: span 2;
  }

  .hero-metrics {
    position: relative;
    left: auto;
    transform: none;
  }

  .hero-metrics div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

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

  .site-footer {
    display: block;
  }

  .footer-links {
    margin-top: 20px;
  }

  .site-footer p {
    margin-top: 16px;
  }
}

@media (max-width: 560px) {
  .brand strong {
    font-size: 18px;
  }

  .hero-copy {
    font-size: 16px;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .section {
    padding: 46px 18px;
  }

  .service-grid,
  .focus-grid,
  .process-track,
  .license-summary,
  .brief-list {
    grid-template-columns: 1fr;
  }

  .license-summary .wide-info {
    grid-column: span 1;
  }

  .contact-card div {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .side-nav {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .footer-links {
    grid-template-columns: 1fr;
  }

  .solution-detail-grid dl div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-hero {
    min-height: 340px;
  }

  .page-hero > div {
    padding: 70px 18px 58px;
  }

  .china-map-placeholder {
    min-height: 300px;
  }

  .china-map-image {
    inset: 0;
    width: 100%;
    height: 100%;
  }

  .map-node {
    padding: 4px 6px;
    font-size: 10px;
  }

  .map-node::before {
    width: 7px;
    height: 7px;
    box-shadow: 0 0 0 3px rgba(11, 102, 216, 0.12);
  }

  .home-hero h1 {
    font-size: 31px;
  }

  .capability-grid,
  .strip-grid {
    grid-template-columns: 1fr;
  }

  .capability-section,
  .solution-strip {
    padding-top: 52px;
    padding-bottom: 52px;
  }

  .capability-card {
    min-height: auto;
  }

  .why-section {
    padding-left: 18px;
    padding-right: 18px;
  }

  .cta-panel {
    padding: 42px 20px;
  }

}