:root {
  --ink: #142126;
  --muted: #5f6f77;
  --line: #dbe3e7;
  --steel: #eef3f5;
  --blue: #115c9b;
  --blue-dark: #0b385f;
  --gold: #d8a03a;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family:
    Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  background: #f8fafb;
}

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

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.93);
  border-bottom: 1px solid rgba(219, 227, 231, 0.8);
  backdrop-filter: blur(14px);
}

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

.brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  color: var(--white);
  font-weight: 800;
  background: linear-gradient(135deg, var(--blue-dark), var(--blue));
  border-radius: 6px;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 18px;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  gap: clamp(14px, 3vw, 32px);
  color: #344850;
  font-size: 15px;
}

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

.hero {
  position: relative;
  display: grid;
  min-height: 86vh;
  overflow: hidden;
  align-items: center;
  padding: 130px clamp(20px, 6vw, 84px) 76px;
  color: var(--white);
}

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

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 28, 45, 0.88), rgba(7, 28, 45, 0.46) 45%, rgba(7, 28, 45, 0.05)),
    linear-gradient(0deg, rgba(20, 33, 38, 0.2), rgba(20, 33, 38, 0.05));
}

.hero-content {
  position: relative;
  max-width: 710px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(56px, 9vw, 104px);
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 22px;
}

.lead {
  max-width: 650px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(18px, 2.2vw, 24px);
  line-height: 1.65;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 800;
}

.button.primary {
  color: #101b20;
  background: var(--gold);
}

.button.secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.08);
}

.intro,
.capability,
.projects,
.contact {
  padding: 72px clamp(20px, 6vw, 84px);
}

.intro {
  display: grid;
  grid-template-columns: minmax(240px, 0.9fr) minmax(280px, 1.1fr);
  gap: clamp(28px, 6vw, 78px);
  background: var(--white);
}

.intro p:last-child,
.capability-copy p,
.contact p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.products {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  padding: 1px clamp(20px, 6vw, 84px);
  background: var(--line);
}

.product-card {
  min-height: 250px;
  padding: 34px 28px;
  background: var(--white);
}

.product-card p {
  color: var(--muted);
  line-height: 1.75;
}

.icon {
  display: grid;
  width: 42px;
  height: 42px;
  margin-bottom: 28px;
  place-items: center;
  color: var(--blue);
  font-size: 24px;
  background: var(--steel);
  border-radius: 6px;
}

.capability {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(280px, 1fr);
  gap: clamp(26px, 6vw, 80px);
  align-items: center;
  background: #edf3f6;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--line);
  background: var(--white);
}

.metrics div {
  min-height: 142px;
  padding: 26px 20px;
  border-right: 1px solid var(--line);
}

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

.metrics strong {
  display: block;
  margin-bottom: 12px;
  color: var(--blue-dark);
  font-size: clamp(26px, 3.4vw, 42px);
  line-height: 1;
}

.metrics span {
  color: var(--muted);
}

.projects {
  background: var(--white);
}

.project-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.project-list span {
  padding: 13px 18px;
  color: #243941;
  background: var(--steel);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-weight: 700;
}

.contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  color: var(--white);
  background: var(--blue-dark);
}

.contact div {
  max-width: 760px;
}

.contact p {
  color: rgba(255, 255, 255, 0.76);
}

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

  .nav {
    display: none;
  }

  .hero {
    min-height: 760px;
  }

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

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

  .contact {
    display: grid;
  }
}

@media (max-width: 620px) {
  .site-header {
    min-height: 66px;
    padding: 0 16px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .brand strong {
    font-size: 16px;
  }

  .brand small {
    font-size: 10px;
  }

  .hero {
    min-height: 690px;
    padding: 96px 18px 56px;
  }

  .hero-shade {
    background: linear-gradient(90deg, rgba(7, 28, 45, 0.9), rgba(7, 28, 45, 0.42));
  }

  .products,
  .metrics {
    grid-template-columns: 1fr;
  }

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

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