:root {
  --ink: #10253f;
  --ink-2: #334863;
  --muted: #6d7f95;
  --bg: #f5f8fb;
  --paper: #ffffff;
  --line: #dfe8f2;
  --blue: #2568b8;
  --blue-2: #5f95cf;
  --cyan: #75b9d2;
  --green: #6f8879;
  --orange: #d79a63;
  --red: #d84b4b;
  --shadow: 0 18px 45px rgba(37, 104, 184, 0.11);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.64;
}

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

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

.nav {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 13px clamp(18px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(213, 222, 235, 0.88);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
  font-weight: 850;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  object-fit: cover;
}

.brand-text {
  display: grid;
  gap: 5px;
  line-height: 1.08;
}

.brand-name {
  color: var(--ink);
  font-size: 18px;
  font-weight: 900;
}

.brand-sub {
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

.brand-mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  color: #fff;
  background: var(--blue);
  border-radius: 7px;
  font-weight: 900;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--ink-2);
  font-size: 14px;
}

.nav-links a {
  white-space: nowrap;
}

.nav-cta {
  padding: 8px 14px;
  color: #fff;
  background: var(--blue);
  border-radius: 6px;
  box-shadow: 0 10px 22px rgba(37, 104, 184, 0.18);
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, #f7fbff 0%, #ffffff 45%, #edf6fc 100%);
  border-bottom: 1px solid var(--line);
}

.hero::before {
  content: "";
  position: absolute;
  inset: auto -20% -46% 42%;
  height: 420px;
  background: radial-gradient(circle, rgba(37, 104, 184, 0.13), rgba(37, 104, 184, 0));
  pointer-events: none;
}

.inner,
.hero-inner {
  width: min(1220px, calc(100% - 40px));
  margin: 0 auto;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(360px, 0.74fr);
  gap: 42px;
  align-items: center;
  min-height: 690px;
  padding: 54px 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--blue);
}

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

h1 {
  max-width: 820px;
  margin-bottom: 22px;
  font-size: clamp(34px, 4.6vw, 58px);
  line-height: 1.08;
  letter-spacing: 0;
  text-wrap: balance;
}

.hero-title {
  width: min(760px, 100%);
}

.hero-title span {
  display: block;
  width: max-content;
  max-width: 100%;
  text-align: left;
  text-align-last: auto;
  white-space: nowrap;
}

.hero-title .position-line {
  font-size: 0.76em;
  line-height: 1.18;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(28px, 3.5vw, 44px);
  line-height: 1.14;
  letter-spacing: 0;
  text-wrap: balance;
}

h3 {
  margin-bottom: 10px;
  line-height: 1.28;
  text-wrap: balance;
}

.no-wrap {
  white-space: nowrap;
}

.hero-copy {
  max-width: 760px;
  margin-bottom: 14px;
  color: var(--ink-2);
  font-size: 18px;
}

.hero-copy-secondary {
  margin-bottom: 28px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 800;
  white-space: nowrap;
}

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--blue), #4d91d0);
  box-shadow: 0 12px 26px rgba(37, 104, 184, 0.22);
}

.button-dark {
  color: #fff;
  background: var(--ink);
}

.button-outline {
  color: var(--blue);
  background: #fff;
  border-color: #b9ccec;
}

.hero-card {
  position: relative;
  padding: 22px;
  border: 1px solid rgba(151, 184, 219, 0.72);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 24px 60px rgba(37, 104, 184, 0.12);
}

.hero-card img {
  width: 100%;
  height: 250px;
  border-radius: 8px;
  object-fit: cover;
  background: #f8fbff;
  border: 1px solid rgba(151, 184, 219, 0.58);
}

.hero-card .metric-grid {
  margin-top: 16px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.metric {
  padding: 12px;
  background: #f7fbff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.metric strong {
  display: block;
  color: var(--blue);
  font-size: 22px;
  line-height: 1.1;
}

.metric span {
  color: var(--muted);
  font-size: 12px;
}

.trust {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.trust span {
  padding: 8px 11px;
  color: var(--ink-2);
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 13px;
}

section {
  padding: 72px clamp(18px, 5vw, 72px);
}

.page-head {
  padding: 48px clamp(18px, 5vw, 72px) 34px;
  background: linear-gradient(135deg, #f2f7ff, #ffffff);
  border-bottom: 1px solid var(--line);
}

.page-head h1 {
  margin-bottom: 14px;
}

.page-head p {
  max-width: 1040px;
  margin-bottom: 0;
  color: var(--ink-2);
  font-size: 17px;
  line-height: 1.68;
  text-align: justify;
  text-align-last: left;
}

.page-head .about-intro {
  max-width: 1120px;
}

.page-head .contact-intro {
  width: min(1120px, 100%);
  max-width: none;
  text-align: justify;
  text-align-last: left;
  white-space: nowrap;
}

.company-position {
  max-width: 1120px;
  margin-top: 14px;
  color: var(--blue);
  font-size: 16px;
  font-weight: 850;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.62fr);
  gap: 34px;
  align-items: end;
  margin-bottom: 30px;
}

.lead,
.section-head p {
  margin-bottom: 0;
  color: var(--ink-2);
  font-size: 16px;
}

.grid-5,
.grid-4,
.grid-3,
.grid-2 {
  display: grid;
  gap: 16px;
}

.grid-5 {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.leadership-layout {
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 0.72fr);
  gap: clamp(34px, 5vw, 76px);
  align-items: start;
}

.leadership-card {
  justify-self: end;
  width: min(460px, 100%);
  padding: 26px 28px;
}

.leadership-card ul {
  display: grid;
  gap: 12px;
  line-height: 1.78;
}

.card,
.tile,
.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: 0 10px 28px rgba(24, 42, 69, 0.05);
}

.card,
.panel {
  padding: 22px;
}

.tile {
  padding: 20px;
}

.product {
  display: flex;
  flex-direction: column;
  min-height: 310px;
}

.product ul,
.panel ul,
.price-card ul {
  padding-left: 18px;
  margin: 14px 0 0;
  color: var(--ink-2);
}

.product p,
.tile p,
.panel p,
.price-card p {
  color: var(--ink-2);
}

.tag {
  display: inline-flex;
  width: max-content;
  margin-bottom: 13px;
  padding: 4px 8px;
  color: var(--blue);
  background: #edf5ff;
  border: 1px solid #d8e8ff;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 850;
}

.tag.red {
  color: var(--red);
  background: #fff1f1;
  border-color: #ffd9d9;
}

.tag.green {
  color: var(--green);
  background: #eefaf5;
  border-color: #d5f0e4;
}

.tag.gold {
  color: #a45c00;
  background: #fff5e6;
  border-color: #ffe2b8;
}

.tag.cyan {
  color: #0b7f98;
  background: #ecfbff;
  border-color: #cff3fb;
}

.band {
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.dark {
  color: #fff;
  background: linear-gradient(135deg, #142033, #1f5fb7);
}

.dark .section-head p,
.dark .tile p,
.dark .panel p {
  color: rgba(255, 255, 255, 0.82);
}

.dark .tile,
.dark .panel,
.dark .card {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.18);
}

.solution {
  border-left: 3px solid var(--blue);
}

.entry-card,
.compact-product {
  color: inherit;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.entry-card:hover,
.compact-product:hover,
.contact-method:hover {
  transform: translateY(-2px);
  border-color: rgba(37, 104, 184, 0.35);
  box-shadow: 0 16px 34px rgba(37, 104, 184, 0.1);
}

.entry-card strong {
  display: inline-flex;
  margin-top: 12px;
  color: var(--blue);
  font-size: 14px;
}

.compact-product {
  min-height: 210px;
}

.compact-product p {
  margin-bottom: 0;
}

.section-action {
  display: flex;
  justify-content: center;
  margin-top: 24px;
}

.quick-links {
  display: grid;
  gap: 12px;
}

.route-visual-section {
  align-items: center;
}

.visual-card {
  margin: 0;
  padding: 16px;
  border: 1px solid rgba(151, 184, 219, 0.72);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 24px 60px rgba(37, 104, 184, 0.12);
}

.visual-card img {
  width: 100%;
  min-height: 260px;
  max-height: 380px;
  object-fit: cover;
  border: 1px solid rgba(151, 184, 219, 0.58);
  border-radius: 8px;
  background: #f8fbff;
}

.equipment {
  align-items: stretch;
}

.equipment-card {
  overflow: hidden;
  padding: 0;
}

.equipment-card img {
  width: 100%;
  height: 210px;
  object-fit: cover;
  background: #f4f6f9;
}

.equipment-card div {
  padding: 18px;
}

.price-card {
  position: relative;
}

.price {
  margin: 12px 0 8px;
  color: var(--blue);
  font-size: 28px;
  font-weight: 900;
  line-height: 1.1;
}

.price small {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

.content-list {
  display: grid;
  gap: 12px;
}

.content-item {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 16px;
  align-items: start;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.content-item strong {
  color: var(--blue);
}

.contact-box {
  color: #fff;
  background:
    linear-gradient(135deg, rgba(20, 32, 51, 0.96), rgba(23, 105, 224, 0.9)),
    url("hero-airport-ai.png") center/cover;
}

.contact-box .lead {
  color: rgba(255, 255, 255, 0.86);
}

.form {
  display: grid;
  gap: 12px;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.11);
}

.form label {
  display: grid;
  gap: 7px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 13px;
}

.form input,
.form select,
.form textarea {
  width: 100%;
  min-height: 42px;
  padding: 10px 12px;
  color: var(--ink);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 6px;
  background: #fff;
  font: inherit;
}

.form textarea {
  min-height: 92px;
  resize: vertical;
}

footer {
  padding: 28px clamp(18px, 5vw, 72px);
  color: var(--muted);
  background: #fff;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.footer-inner {
  width: min(1220px, 100%);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.subnav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.subnav a,
.text-link {
  color: var(--blue);
  font-weight: 800;
}

.list-clean {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 14px 0 0;
  list-style: none;
}

.list-clean li {
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbff;
  color: var(--ink-2);
}

.contact-method {
  display: grid;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.contact-method strong {
  color: var(--ink);
}

.contact-method a {
  color: var(--blue);
  font-weight: 800;
  overflow-wrap: anywhere;
}

.company-card {
  position: relative;
}

.company-logo-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.company-logo-row img {
  width: 72px;
  height: 72px;
  flex: 0 0 auto;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 14px 28px rgba(36, 80, 130, 0.14);
}

.company-logo-row strong {
  display: block;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.1;
  font-weight: 900;
}

.company-logo-row span {
  display: block;
  margin-top: 5px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.7px;
  text-transform: uppercase;
}

.resource-row {
  display: grid;
  grid-template-columns: 150px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.resource-row p {
  margin-bottom: 0;
}

.showcase-card {
  overflow: hidden;
  padding: 0;
}

.showcase-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  background: linear-gradient(135deg, #f4f8ff, #fff);
}

.showcase-card .showcase-body {
  padding: 20px;
}

.showcase-card.logo-showcase img {
  object-fit: contain;
  padding: 30px;
}

.notice {
  padding: 14px 16px;
  color: var(--ink-2);
  background: #fff8ee;
  border: 1px solid #ffe1b9;
  border-radius: 8px;
}

.demo-stage-section {
  background: linear-gradient(135deg, #f7fbff 0%, #ffffff 52%, #edf6fc 100%);
}

.demo-stage-wrap {
  align-items: center;
}

.demo-subnav {
  margin-top: 24px;
}

.demo-screen {
  position: relative;
  overflow: hidden;
  min-height: 430px;
  padding: 18px;
  color: #fff;
  border: 1px solid rgba(75, 130, 192, 0.26);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(15, 41, 70, 0.96), rgba(21, 100, 173, 0.9)),
    radial-gradient(circle at 72% 18%, rgba(117, 185, 210, 0.5), transparent 30%);
  box-shadow: 0 30px 70px rgba(37, 104, 184, 0.22);
}

.demo-screen::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

.demo-topbar,
.demo-panels,
.demo-flow {
  position: relative;
  z-index: 2;
}

.demo-topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 13px;
}

.demo-topbar strong {
  color: #a8dcf0;
}

.demo-map {
  position: relative;
  height: 220px;
  margin: 18px 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background:
    radial-gradient(circle at 24% 26%, rgba(117, 185, 210, 0.28), transparent 20%),
    radial-gradient(circle at 78% 60%, rgba(111, 136, 121, 0.26), transparent 28%),
    rgba(255, 255, 255, 0.06);
}

.runway,
.taxiway {
  position: absolute;
  left: 12%;
  width: 76%;
  height: 9px;
  border-radius: 99px;
  transform: rotate(-9deg);
  transform-origin: center;
}

.runway {
  background: repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.92) 0 30px, rgba(255, 255, 255, 0.42) 30px 48px);
  box-shadow: 0 0 24px rgba(117, 185, 210, 0.36);
}

.runway-a {
  top: 72px;
}

.runway-b {
  top: 118px;
}

.taxiway {
  height: 3px;
  background: rgba(216, 232, 242, 0.5);
}

.taxiway-a {
  top: 95px;
  transform: rotate(19deg);
}

.taxiway-b {
  top: 148px;
  transform: rotate(-24deg);
}

.flight-dot,
.pulse {
  position: absolute;
  z-index: 2;
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.flight-dot {
  background: #fff;
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.9);
  animation: flightMove 6s linear infinite;
}

.dot-a {
  top: 66px;
  left: 12%;
}

.dot-b {
  top: 114px;
  left: 22%;
  animation-delay: 1.8s;
}

.dot-c {
  top: 138px;
  left: 44%;
  animation-delay: 3.2s;
}

.pulse {
  border: 2px solid rgba(216, 154, 99, 0.92);
  animation: pulseRing 2.4s ease-out infinite;
}

.pulse-a {
  top: 92px;
  left: 54%;
}

.pulse-b {
  top: 140px;
  left: 70%;
  animation-delay: 0.9s;
}

.demo-panels {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.demo-panel {
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
}

.demo-panel span,
.demo-panel em {
  display: block;
  color: rgba(255, 255, 255, 0.72);
  font-size: 12px;
  font-style: normal;
}

.demo-panel strong {
  display: block;
  margin: 4px 0;
  color: #fff;
  font-size: 26px;
  line-height: 1;
}

.demo-panel.warning strong {
  color: #ffd39a;
}

.demo-panel.green strong {
  color: #bfe8ce;
}

.demo-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 12px;
}

.demo-flow i {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(117, 185, 210, 0.2), rgba(117, 185, 210, 0.9));
}

.demo-product {
  min-height: 260px;
}

.demo-product strong {
  display: inline-flex;
  margin-top: 12px;
  color: var(--blue);
  font-size: 13px;
}

@keyframes flightMove {
  0% {
    transform: translateX(0) translateY(0) scale(0.9);
    opacity: 0;
  }
  12% {
    opacity: 1;
  }
  82% {
    opacity: 1;
  }
  100% {
    transform: translateX(330px) translateY(-52px) scale(1.08);
    opacity: 0;
  }
}

@keyframes pulseRing {
  0% {
    transform: scale(0.6);
    opacity: 0.9;
  }
  100% {
    transform: scale(3.4);
    opacity: 0;
  }
}

@media (max-width: 980px) {
  .hero-inner,
  .section-head,
  .leadership-layout,
  .grid-5,
  .grid-4,
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    min-height: 0;
    padding: 48px 0;
  }

  .nav {
    align-items: stretch;
    flex-direction: column;
    gap: 10px;
  }

  .brand {
    width: 100%;
  }

  .nav-links {
    width: 100%;
    display: flex;
    flex-wrap: nowrap;
    gap: 8px;
    overflow-x: auto;
    padding: 2px 0 6px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .nav-links a {
    flex: 0 0 auto;
    padding: 6px 9px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fff;
    font-size: 13px;
    line-height: 1.2;
  }

  .nav-links .nav-cta {
    color: #fff;
    background: var(--blue);
    border-color: var(--blue);
  }

  .no-wrap {
    white-space: normal;
  }

  .page-head .contact-intro {
    white-space: normal;
  }

  .page-head p {
    text-align: left;
  }
}

@media (max-width: 640px) {
  h1 {
    font-size: 31px;
    line-height: 1.16;
  }

  h2 {
    font-size: 27px;
  }

  h3 {
    font-size: 20px;
  }

  .nav {
    padding: 10px 16px 8px;
  }

  .brand img {
    width: 34px;
    height: 34px;
  }

  .brand-name {
    font-size: 17px;
  }

  .brand-sub {
    font-size: 9px;
    letter-spacing: 0.2px;
  }

  .nav-links {
    margin: 0 -2px;
  }

  .nav-cta {
    padding: 6px 10px;
  }

  .hero-inner {
    padding: 34px 0 40px;
  }

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

  .hero-title span {
    width: auto;
    max-width: 100%;
    text-align: left;
    text-align-last: auto;
  }

  .hero-title .position-line {
    font-size: 0.58em;
  }

  .hero-card {
    padding: 16px;
  }

  .hero-card img,
  .showcase-card img,
  .equipment-card img {
    height: 190px;
  }

  section {
    padding-top: 52px;
    padding-bottom: 52px;
  }

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

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

  .demo-flow {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .content-item {
    grid-template-columns: 1fr;
  }

  .resource-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .resource-row .button {
    justify-self: start;
  }
}