:root {
  --ink: #172033;
  --muted: #667085;
  --line: #d8dee8;
  --paper: #ffffff;
  --mist: #f3f6fa;
  --navy: #0f1d2f;
  --teal: #0f766e;
  --wine: #8a2f46;
  --gold: #b68432;
  --blue: #2364aa;
  --shadow: 0 18px 50px rgba(15, 29, 47, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 82px;
  padding: 14px clamp(22px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.93);
  border-bottom: 1px solid rgba(216, 222, 232, 0.9);
  backdrop-filter: blur(14px);
}

.brand img {
  width: 214px;
  height: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 32px);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

.main-nav a {
  color: var(--ink);
  text-decoration: none;
}

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

.hero {
  position: relative;
  min-height: calc(100vh - 82px);
  overflow: hidden;
  background: var(--navy);
}

.hero-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  min-height: calc(100vh - 82px);
  padding: 70px clamp(24px, 7vw, 110px) 96px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 800ms ease;
}

.hero-slide::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(7, 16, 29, 0.86), rgba(7, 16, 29, 0.56) 42%, rgba(7, 16, 29, 0.1) 78%),
    var(--hero-image);
  background-position: center;
  background-size: cover;
  transform: scale(1.02);
}

.hero-slide-active {
  opacity: 1;
  pointer-events: auto;
}

.hero-copy {
  position: relative;
  width: min(720px, 92vw);
  color: #fff;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.hero h1,
.hero h2 {
  margin: 0;
  max-width: 690px;
  font-size: clamp(48px, 7vw, 92px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero p:not(.eyebrow) {
  max-width: 640px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.87);
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.55;
}

.hero-controls {
  position: absolute;
  left: clamp(24px, 7vw, 110px);
  bottom: 38px;
  z-index: 3;
  display: flex;
  gap: 12px;
}

.hero-dot {
  width: 42px;
  height: 4px;
  padding: 0;
  border: 0;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
}

.hero-dot-active {
  background: #ffffff;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.metrics div {
  min-height: 145px;
  padding: 34px 28px;
  background: #fff;
}

.metrics strong {
  display: block;
  color: var(--wine);
  font-size: clamp(36px, 4vw, 54px);
  line-height: 1;
}

.metrics span {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-size: 15px;
}

.section {
  padding: clamp(72px, 10vw, 128px) clamp(22px, 5vw, 72px);
}

.section-copy,
.section-heading {
  max-width: 860px;
}

.section h2 {
  margin: 0;
  max-width: 930px;
  font-size: clamp(34px, 4vw, 58px);
  line-height: 1.05;
  letter-spacing: 0;
}

.section h3 {
  margin: 0;
  font-size: 24px;
  line-height: 1.18;
}

.section p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.72;
}

.about-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.65fr);
  gap: clamp(34px, 6vw, 82px);
  align-items: center;
  background: #fff;
}

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

.image-stack img {
  width: 100%;
  aspect-ratio: 1 / 0.74;
  object-fit: cover;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.business-section {
  background: var(--mist);
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  margin-top: 42px;
}

.business-card {
  display: grid;
  grid-template-rows: 190px 1fr;
  min-height: 540px;
  background: #fff;
  border: 1px solid var(--line);
}

.business-card img {
  width: 100%;
  height: 190px;
  object-fit: cover;
}

.business-card div {
  padding: 26px 24px 30px;
}

.business-card span {
  display: inline-block;
  margin-bottom: 22px;
  color: var(--gold);
  font-weight: 800;
  font-size: 14px;
}

.business-card p {
  margin-bottom: 0;
  font-size: 16px;
  line-height: 1.68;
}

.network-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 0.72fr);
  min-height: 680px;
  background: var(--navy);
}

.luxury-section {
  display: grid;
  grid-template-columns: minmax(340px, 0.62fr) minmax(0, 1fr);
  gap: clamp(34px, 6vw, 74px);
  align-items: center;
  padding: clamp(72px, 10vw, 128px) clamp(22px, 5vw, 72px);
  background: #111927;
  color: #fff;
}

.luxury-copy h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 58px);
  line-height: 1.05;
}

.luxury-copy p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
  line-height: 1.72;
}

.luxury-gallery {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 0.8fr);
  grid-auto-rows: 250px;
  gap: 18px;
}

.luxury-gallery figure {
  position: relative;
  min-height: 0;
  margin: 0;
  overflow: hidden;
  background: #000;
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.luxury-gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.92;
  transition: transform 400ms ease, opacity 400ms ease;
}

.luxury-gallery figure:hover img {
  transform: scale(1.04);
  opacity: 1;
}

.luxury-gallery figcaption {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 16px;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.72);
}

.luxury-large {
  grid-row: span 2;
}

.network-photo {
  min-height: 520px;
  background-image:
    linear-gradient(90deg, rgba(15, 29, 47, 0.1), rgba(15, 29, 47, 0.6)),
    url("assets/shanghai-hongkong-hero.png");
  background-position: center;
  background-size: cover;
}

.network-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(50px, 6vw, 86px);
  color: #fff;
}

.network-panel h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 58px);
  line-height: 1.05;
}

.network-panel p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
  line-height: 1.7;
}

.office-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 22px;
}

.office-grid article {
  padding: 22px;
  border-left: 4px solid var(--gold);
  background: rgba(255, 255, 255, 0.08);
}

.office-grid h3 {
  margin: 0;
  font-size: 24px;
}

.office-grid p {
  margin-bottom: 0;
  font-size: 16px;
}

.team-section {
  background: #fff;
}

.org-chart {
  width: 100%;
  margin-top: 42px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.contact-section {
  background: var(--mist);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 40px;
}

.contact-card {
  min-height: 430px;
  padding: clamp(28px, 4vw, 44px);
  background: #fff;
  border: 1px solid var(--line);
}

.contact-card h3 {
  margin: 0 0 28px;
  font-size: 28px;
}

.contact-card dl {
  margin: 0;
}

.contact-card div {
  display: grid;
  grid-template-columns: 150px 1fr;
  align-items: end;
  gap: 18px;
  min-height: 54px;
  border-bottom: 1px solid var(--line);
}

.contact-card dt {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
}

.contact-card dd {
  min-height: 30px;
  margin: 0;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 34px clamp(22px, 5vw, 72px);
  background: #111927;
  color: rgba(255, 255, 255, 0.72);
}

.site-footer img {
  width: 190px;
  filter: brightness(1.35);
}

.site-footer p {
  margin: 0;
}

@media (max-width: 1120px) {
  .business-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .business-card {
    min-height: 470px;
  }
}

@media (max-width: 860px) {
  .site-header {
    position: relative;
    align-items: flex-start;
    flex-direction: column;
    min-height: 0;
  }

  .brand img {
    width: 190px;
  }

  .main-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero,
  .hero-slide {
    min-height: 680px;
  }

  .metrics,
  .about-section,
  .luxury-section,
  .network-section,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .luxury-gallery {
    grid-template-columns: 1fr;
    grid-auto-rows: 290px;
  }

  .luxury-large {
    grid-row: span 1;
  }

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

  .business-card {
    min-height: 0;
  }

  .contact-card div {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 14px 0;
  }
}

@media (max-width: 560px) {
  .section {
    padding: 64px 20px;
  }

  .hero-slide {
    padding: 56px 20px 88px;
  }

  .hero h1,
  .hero h2 {
    font-size: 46px;
  }

  .metrics div {
    min-height: 120px;
  }

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