:root {
  color-scheme: light dark;
  --surface: #f4f7ff;
  --surface-elevated: #fbfcff;
  --surface-soft: #e9effd;
  --ink: #071b3a;
  --ink-soft: #52617a;
  --line: rgba(7, 27, 58, 0.14);
  --blue: #002fa7;
  --blue-deep: #001f73;
  --blue-soft: #dfe8ff;
  --gold: #c9a55c;
  --white: #fdfefe;
  --shadow: 0 28px 80px rgba(26, 55, 112, 0.13);
  --radius: 22px;
  --radius-small: 12px;
  --max: 1360px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --surface: #081328;
    --surface-elevated: #0d1c37;
    --surface-soft: #122544;
    --ink: #f2f6ff;
    --ink-soft: #afbdd2;
    --line: rgba(223, 232, 255, 0.15);
    --blue: #6f94ff;
    --blue-deep: #8da8ff;
    --blue-soft: #152b56;
    --gold: #d6b76f;
    --white: #f7f9ff;
    --shadow: 0 28px 90px rgba(0, 0, 0, 0.3);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: "Helvetica Neue", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--blue) 45%, transparent);
  outline-offset: 3px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  padding: 10px 16px;
  color: var(--white);
  background: var(--blue-deep);
  border-radius: var(--radius-small);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.header-sentinel {
  position: absolute;
  top: 18px;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: 76px;
  border-bottom: 1px solid transparent;
  transition: background 280ms var(--ease), border-color 280ms var(--ease), box-shadow 280ms var(--ease);
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  box-shadow: 0 10px 36px rgba(15, 39, 88, 0.08);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
}

.nav-shell {
  width: min(calc(100% - 48px), var(--max));
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 194px;
}

.brand img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.brand-copy {
  display: grid;
  line-height: 1;
}

.brand-copy strong,
.footer-brand strong {
  font-family: Didot, "Bodoni 72", Georgia, serif;
  font-size: 25px;
  font-weight: 600;
  letter-spacing: 0.14em;
}

.brand-copy small {
  margin-top: 6px;
  color: var(--ink-soft);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.11em;
}

.primary-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(16px, 2vw, 30px);
  white-space: nowrap;
}

.primary-nav > a:not(.nav-cta) {
  position: relative;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 600;
  transition: color 220ms ease;
}

.primary-nav > a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 2px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 260ms var(--ease);
}

.primary-nav > a:not(.nav-cta):hover {
  color: var(--ink);
}

.primary-nav > a:not(.nav-cta):hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.language-toggle {
  min-width: 40px;
  padding: 7px 10px;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
}

.nav-cta,
.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border: 0;
  border-radius: 999px;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 220ms var(--ease), background 220ms ease, color 220ms ease, box-shadow 220ms ease;
}

.nav-cta,
.button-primary {
  color: #ffffff;
  background: #002fa7;
  box-shadow: 0 13px 30px rgba(0, 47, 167, 0.2);
}

.nav-cta:hover,
.button-primary:hover {
  background: #001f73;
  transform: translateY(-2px);
}

.nav-cta:active,
.button:active {
  transform: translateY(1px) scale(0.985);
}

.menu-toggle {
  display: none;
}

.hero {
  position: relative;
  min-height: 100dvh;
  padding: 124px 0 54px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -25vw;
  right: -15vw;
  width: 60vw;
  height: 60vw;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--blue) 11%, transparent), transparent 68%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  width: min(calc(100% - 48px), var(--max));
  min-height: calc(100dvh - 178px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(520px, 1.12fr);
  align-items: center;
  gap: clamp(42px, 7vw, 110px);
}

.hero-copy {
  padding-left: clamp(0px, 3vw, 42px);
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.2em;
}

.hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(48px, 5.6vw, 82px);
  font-weight: 650;
  letter-spacing: -0.07em;
  line-height: 1.05;
}

.hero-intro {
  max-width: 520px;
  margin: 28px 0 0;
  color: var(--ink-soft);
  font-size: clamp(17px, 1.5vw, 21px);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-top: 38px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 700;
}

.text-link span {
  color: var(--blue);
  font-size: 22px;
  transition: transform 220ms var(--ease);
}

.text-link:hover span {
  transform: translateX(5px);
}

.hero-visual {
  margin: 0;
}

.hero-photo {
  position: relative;
  min-height: min(690px, 72dvh);
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--blue-deep);
  box-shadow: var(--shadow);
}

.hero-road {
  width: 100%;
  height: 100%;
  min-height: inherit;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.78) contrast(1.08);
}

.hero-wash {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(0, 31, 115, 0.1), rgba(0, 19, 68, 0.72)),
    linear-gradient(90deg, rgba(0, 47, 167, 0.13), transparent 54%);
}

.hero-mark {
  position: absolute;
  right: -4%;
  bottom: -3%;
  width: min(66%, 490px);
  filter: drop-shadow(0 24px 34px rgba(0, 17, 65, 0.34));
}

.route-signature {
  position: absolute;
  top: 34px;
  right: 34px;
  left: 34px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.15em;
}

.route-signature i {
  position: relative;
  height: 1px;
  background: rgba(255, 255, 255, 0.4);
}

.route-signature i::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
  transform: translateY(-50%);
}

figcaption,
.asset-note {
  margin-top: 13px;
  color: var(--ink-soft);
  font-size: 12px;
}

.proof-strip {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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

.proof-grid article {
  min-height: 146px;
  padding: 26px clamp(18px, 3vw, 42px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--line);
}

.proof-grid article:last-child {
  border-right: 0;
}

.proof-grid strong {
  color: var(--blue);
  font-size: clamp(27px, 3vw, 42px);
  font-weight: 650;
  letter-spacing: -0.04em;
  line-height: 1;
}

.proof-grid strong span {
  margin-left: 3px;
  font-size: 13px;
  letter-spacing: 0;
}

.proof-grid article > span {
  margin-top: 12px;
  color: var(--ink-soft);
  font-size: 14px;
}

.section {
  padding: clamp(100px, 12vw, 180px) 0;
}

.section-shell {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
}

.section-heading {
  max-width: 870px;
  margin-bottom: 68px;
}

.section-heading.compact {
  max-width: 680px;
}

.section-heading h2,
.corporate-copy h2,
.contact-copy h2 {
  margin: 0;
  font-size: clamp(38px, 5vw, 68px);
  font-weight: 650;
  letter-spacing: -0.06em;
  line-height: 1.12;
}

.section-heading p,
.corporate-copy > p,
.contact-copy > p {
  max-width: 620px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: 18px;
}

.service-mosaic {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  grid-template-rows: minmax(330px, 0.8fr) minmax(400px, 1fr);
  gap: 20px;
}

.service-panel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
}

.visa-panel {
  grid-row: 1 / 3;
  padding: clamp(34px, 5vw, 72px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: #ffffff;
  background:
    radial-gradient(circle at 85% 15%, rgba(201, 165, 92, 0.35), transparent 23%),
    linear-gradient(145deg, #002fa7, #001a62);
}

.visa-panel::before {
  content: "A";
  position: absolute;
  right: -0.08em;
  bottom: -0.27em;
  color: rgba(255, 255, 255, 0.08);
  font-family: Didot, "Bodoni 72", Georgia, serif;
  font-size: clamp(300px, 42vw, 620px);
  line-height: 1;
}

.visa-panel > * {
  position: relative;
}

.service-index {
  display: block;
  margin-bottom: 26px;
  color: var(--gold);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.19em;
}

.service-panel h3 {
  margin: 0;
  font-size: clamp(30px, 4vw, 54px);
  font-weight: 640;
  letter-spacing: -0.05em;
  line-height: 1.12;
}

.service-panel p {
  max-width: 470px;
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 17px;
}

.visa-panel a {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: fit-content;
  font-weight: 700;
}

.visa-panel a span {
  font-size: 22px;
}

.image-panel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 700ms var(--ease);
}

.image-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 25%, rgba(1, 16, 52, 0.9));
}

.image-panel:hover img {
  transform: scale(1.035);
}

.image-panel-copy {
  position: absolute;
  right: 34px;
  bottom: 30px;
  left: 34px;
  z-index: 1;
  color: #ffffff;
}

.image-panel-copy .service-index {
  margin-bottom: 12px;
}

.image-panel-copy h3 {
  font-size: clamp(26px, 3vw, 40px);
}

.image-panel-copy p {
  margin-top: 10px;
  font-size: 15px;
}

.asset-note {
  text-align: right;
}

.journey {
  padding-top: 40px;
}

.journey-track {
  display: grid;
  grid-auto-columns: minmax(260px, 1fr);
  grid-auto-flow: column;
  gap: 14px;
  overflow-x: auto;
  padding-bottom: 18px;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--blue) var(--surface-soft);
}

.journey-item {
  position: relative;
  min-height: 260px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-elevated);
  scroll-snap-align: start;
}

.journey-item::before {
  content: "";
  display: block;
  width: 46px;
  height: 3px;
  border-radius: 999px;
  background: var(--gold);
}

.journey-item h3 {
  margin: 58px 0 0;
  font-size: 24px;
  line-height: 1.2;
}

.journey-item p {
  margin: 13px 0 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.mobility-feature {
  position: relative;
  min-height: 820px;
  display: grid;
  align-items: center;
  overflow: hidden;
}

.mobility-feature > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mobility-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 18, 67, 0.94) 0%, rgba(0, 30, 102, 0.72) 47%, rgba(0, 21, 66, 0.18) 100%);
}

.mobility-content {
  position: relative;
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
  color: #ffffff;
}

.mobility-content .eyebrow {
  color: #d6b76f;
}

.mobility-content h2 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(42px, 6vw, 78px);
  line-height: 1.07;
  letter-spacing: -0.06em;
}

.mobility-content > p:not(.eyebrow) {
  max-width: 560px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.75);
  font-size: 18px;
}

.route-line {
  max-width: 680px;
  margin: 62px 0 46px;
  display: grid;
  grid-template-columns: auto minmax(100px, 1fr) auto;
  align-items: center;
  gap: 22px;
}

.route-line div {
  display: grid;
  gap: 5px;
}

.route-line div:last-child {
  text-align: right;
}

.route-line strong {
  font-size: 13px;
  letter-spacing: 0.14em;
}

.route-line span {
  color: rgba(255, 255, 255, 0.66);
  font-size: 13px;
}

.route-line i {
  position: relative;
  height: 2px;
  background: rgba(255, 255, 255, 0.38);
}

.route-line i::before,
.route-line i::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 11px;
  height: 11px;
  border: 2px solid #d6b76f;
  border-radius: 50%;
  background: #00256f;
  transform: translateY(-50%);
}

.route-line i::before {
  left: 0;
}

.route-line i::after {
  right: 0;
}

.button-light {
  color: #071b3a;
  background: #ffffff;
}

.button-light:hover {
  color: #002fa7;
  transform: translateY(-2px);
}

.corporate-grid {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(420px, 0.92fr) minmax(0, 1.08fr);
  align-items: center;
  gap: clamp(58px, 9vw, 140px);
}

.corporate-image {
  margin: 0;
}

.corporate-image img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius);
  filter: saturate(0.78);
  box-shadow: var(--shadow);
}

.corporate-capabilities {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 32px;
  margin: 50px 0 42px;
  border-top: 1px solid var(--line);
}

.corporate-capabilities span {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-weight: 650;
}

.about {
  padding-top: 50px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  grid-template-rows: repeat(2, minmax(260px, auto));
  gap: 18px;
}

.about-grid article {
  border-radius: var(--radius);
}

.about-brand {
  grid-row: 1 / 3;
  padding: clamp(34px, 5vw, 70px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: #ffffff;
  background: linear-gradient(145deg, #002fa7, #001a62);
}

.about-brand img {
  width: min(52%, 360px);
  align-self: flex-end;
  filter: drop-shadow(0 20px 30px rgba(0, 10, 45, 0.3));
}

.about-brand h2 {
  max-width: 730px;
  margin: 0;
  font-size: clamp(34px, 4vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.055em;
}

.about-brand p {
  max-width: 560px;
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.75);
}

.about-cell {
  padding: 34px;
  border: 1px solid var(--line);
  background: var(--surface-elevated);
}

.about-cell strong {
  color: var(--blue);
  font-size: 12px;
  letter-spacing: 0.15em;
}

.about-cell h3 {
  margin: 72px 0 0;
  font-size: 28px;
  line-height: 1.2;
}

.about-cell p {
  margin: 14px 0 0;
  color: var(--ink-soft);
}

.accent-cell {
  color: #071b3a;
  border-color: transparent;
  background: #dfe8ff;
}

.accent-cell p {
  color: #40506d;
}

.schedule-cell {
  grid-column: 2;
}

.contact {
  padding: clamp(100px, 12vw, 170px) 0;
  background: var(--surface-soft);
}

.contact-shell {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(540px, 1.1fr);
  gap: clamp(60px, 9vw, 140px);
  align-items: start;
}

.contact-copy {
  position: sticky;
  top: 120px;
}

.wechat-details {
  margin-top: 54px;
  padding: 24px 0 0;
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
}

.wechat-details span {
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.wechat-details strong {
  font-size: 21px;
}

.wechat-details p {
  margin: 0;
  max-width: 440px;
  color: var(--ink-soft);
  font-size: 14px;
}

.wechat-card {
  width: min(100%, 520px);
  padding: clamp(20px, 3vw, 30px);
  justify-self: end;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-elevated);
  box-shadow: var(--shadow);
  scroll-margin-top: 112px;
}

.wechat-card:target {
  border-color: color-mix(in srgb, var(--blue) 64%, var(--line));
  box-shadow: 0 24px 70px color-mix(in srgb, var(--blue) 22%, transparent);
}

.wechat-card-head {
  display: grid;
  gap: 7px;
  margin-bottom: 20px;
}

.wechat-card-head span {
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.wechat-card-head strong {
  color: var(--ink);
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.15;
}

.wechat-qr-link {
  display: block;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--ink) 9%, transparent);
  border-radius: calc(var(--radius) - 8px);
  background: #fff;
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease);
}

.wechat-qr-link:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 44px rgba(2, 24, 78, 0.16);
}

.wechat-qr-link:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--blue) 42%, transparent);
  outline-offset: 4px;
}

.wechat-qr-link img {
  display: block;
  width: 100%;
  height: auto;
}

.wechat-card > p {
  margin: 18px 4px 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.7;
}

.site-footer {
  padding: 48px 0;
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.footer-shell {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.4fr auto;
  align-items: center;
  gap: 46px;
}

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

.footer-brand img {
  width: 64px;
  height: 64px;
  object-fit: contain;
}

.footer-brand div {
  display: grid;
}

.footer-brand span,
.footer-info,
.footer-links {
  color: var(--ink-soft);
  font-size: 12px;
}

.footer-info p {
  margin: 4px 0;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a:hover {
  color: var(--blue);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 780ms var(--ease), transform 780ms var(--ease);
  transition-delay: calc(var(--delay, 0) * 90ms);
}

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

[data-delay="1"] { --delay: 1; }
[data-delay="2"] { --delay: 2; }
[data-delay="3"] { --delay: 3; }

@media (max-width: 1120px) {
  .primary-nav {
    gap: 15px;
  }

  .primary-nav > a:not(.nav-cta) {
    font-size: 13px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(430px, 1.08fr);
    gap: 46px;
  }

  .hero-photo {
    min-height: 620px;
  }

  .contact-shell {
    grid-template-columns: minmax(0, 0.82fr) minmax(480px, 1.18fr);
    gap: 60px;
  }
}

@media (max-width: 920px) {
  .site-header {
    height: 70px;
  }

  .nav-shell {
    width: min(calc(100% - 36px), var(--max));
  }

  .menu-toggle {
    position: relative;
    z-index: 2;
    width: 46px;
    height: 46px;
    padding: 12px;
    display: grid;
    align-content: center;
    gap: 5px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface-elevated);
    cursor: pointer;
  }

  .menu-toggle span:not(.sr-only) {
    width: 100%;
    height: 2px;
    background: var(--ink);
    transition: transform 220ms ease, opacity 220ms ease;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .primary-nav {
    position: fixed;
    inset: 0;
    padding: 110px 28px 40px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 6px;
    background: var(--surface);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-18px);
    transition: opacity 260ms ease, transform 260ms var(--ease), visibility 260ms ease;
  }

  .primary-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .primary-nav > a:not(.nav-cta) {
    padding: 16px 0;
    color: var(--ink);
    border-bottom: 1px solid var(--line);
    font-size: 22px;
  }

  .language-toggle {
    width: fit-content;
    margin: 20px 0 10px;
  }

  .nav-cta {
    margin-top: 10px;
  }

  .hero {
    min-height: auto;
    padding: 112px 0 70px;
  }

  .hero-grid {
    width: min(calc(100% - 36px), var(--max));
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 58px;
  }

  .hero-copy {
    padding-left: 0;
  }

  .hero-copy br {
    display: none;
  }

  .hero-visual {
    width: 90%;
    margin-left: auto;
  }

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

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

  .proof-grid article:nth-child(2) {
    border-right: 0;
  }

  .proof-grid article:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .service-mosaic {
    grid-template-columns: 1fr;
    grid-template-rows: none;
  }

  .visa-panel {
    grid-row: auto;
    min-height: 560px;
  }

  .image-panel {
    min-height: 430px;
  }

  .corporate-grid,
  .contact-shell {
    width: min(calc(100% - 36px), var(--max));
    grid-template-columns: 1fr;
  }

  .corporate-image {
    width: 78%;
  }

  .corporate-image img {
    aspect-ratio: 5 / 4;
  }

  .about-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto;
  }

  .about-brand {
    grid-column: 1 / 3;
    grid-row: auto;
    min-height: 650px;
  }

  .schedule-cell {
    grid-column: auto;
  }

  .contact-copy {
    position: static;
  }

  .footer-shell {
    width: min(calc(100% - 36px), var(--max));
    grid-template-columns: 1fr 1fr;
  }

  .footer-links {
    grid-column: 1 / 3;
  }
}

@media (max-width: 640px) {
  .nav-shell,
  .hero-grid,
  .section-shell,
  .proof-strip,
  .mobility-content,
  .corporate-grid,
  .contact-shell,
  .footer-shell {
    width: min(calc(100% - 32px), var(--max));
  }

  .brand-copy small {
    display: none;
  }

  .hero {
    padding-top: 104px;
  }

  .hero h1 {
    font-size: clamp(42px, 13vw, 60px);
  }

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

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 20px;
  }

  .hero-visual {
    width: 100%;
  }

  .hero-photo {
    min-height: 510px;
  }

  .hero-mark {
    width: 80%;
  }

  .route-signature {
    top: 24px;
    right: 24px;
    left: 24px;
  }

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

  .proof-grid article {
    min-height: 120px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .proof-grid article:last-child {
    border-bottom: 0;
  }

  .section {
    padding: 96px 0;
  }

  .section-heading {
    margin-bottom: 42px;
  }

  .section-heading h2,
  .corporate-copy h2,
  .contact-copy h2 {
    font-size: clamp(36px, 11vw, 50px);
  }

  .visa-panel {
    min-height: 520px;
    padding: 32px;
  }

  .image-panel {
    min-height: 390px;
  }

  .image-panel-copy {
    right: 24px;
    bottom: 24px;
    left: 24px;
  }

  .asset-note {
    text-align: left;
  }

  .mobility-feature {
    min-height: 760px;
  }

  .mobility-overlay {
    background: linear-gradient(180deg, rgba(0, 19, 69, 0.8), rgba(0, 22, 76, 0.93));
  }

  .mobility-content h2 {
    font-size: clamp(42px, 12vw, 60px);
  }

  .route-line {
    gap: 12px;
  }

  .route-line strong {
    font-size: 11px;
  }

  .corporate-image {
    width: 100%;
  }

  .corporate-image img {
    aspect-ratio: 4 / 5;
  }

  .corporate-capabilities {
    grid-template-columns: 1fr;
  }

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

  .about-brand {
    grid-column: auto;
    min-height: 620px;
  }

  .about-brand img {
    width: 76%;
  }

  .about-cell h3 {
    margin-top: 44px;
  }

  .wechat-card {
    width: 100%;
    justify-self: stretch;
  }

  .footer-shell {
    grid-template-columns: 1fr;
  }

  .footer-links {
    grid-column: auto;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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

@media (prefers-reduced-transparency: reduce) {
  .site-header.is-scrolled {
    background: var(--surface);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}