:root {
  --ink: #111318;
  --paper: #f4f6f7;
  --white: #ffffff;
  --blue: #1549d1;
  --cyan: #16b8cb;
  --signal: #ee5d2d;
  --muted: #68717d;
  --line: #d9dde1;
  font-family: Inter, "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  letter-spacing: 0;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
}

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

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 88px;
  display: grid;
  grid-template-columns: minmax(230px, 1fr) auto minmax(170px, 1fr);
  align-items: center;
  gap: 32px;
  padding: 14px clamp(24px, 5vw, 72px);
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, .22);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  font-weight: 700;
}

.brand img { width: 48px; height: 56px; object-fit: contain; }

nav { display: flex; gap: clamp(22px, 3vw, 44px); font-size: 14px; }
nav a, .phone { transition: color .2s ease; }
nav a:hover, .phone:hover { color: #7ee9f3; }
.phone { justify-self: end; font-size: 14px; font-weight: 700; }

.hero {
  position: relative;
  min-height: min(860px, 88vh);
  height: 88vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  color: var(--white);
}

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

.hero-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(5, 12, 28, .92) 0%, rgba(5, 12, 28, .53) 48%, rgba(5, 12, 28, .12) 100%);
}

.hero-content {
  position: relative;
  width: min(1180px, calc(100% - 48px));
  margin: 68px auto 0;
}

.eyebrow {
  margin: 0 0 18px;
  color: #7ee9f3;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.eyebrow.dark { color: var(--blue); }

h1, h2, h3, p { letter-spacing: 0; }

h1 {
  margin: 0;
  font-size: clamp(56px, 8vw, 112px);
  line-height: .98;
  font-weight: 800;
}

.hero-copy {
  margin: 24px 0 36px;
  font-size: clamp(20px, 2vw, 30px);
  font-weight: 500;
}

.primary-link {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 24px;
  background: var(--signal);
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  border: 1px solid var(--signal);
  border-radius: 4px;
}

.primary-link:hover { background: #cf451c; border-color: #cf451c; }

.hero-index {
  position: absolute;
  right: clamp(24px, 5vw, 72px);
  bottom: 40px;
  font-size: 13px;
  font-weight: 700;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.metrics div { padding: 32px 40px; border-right: 1px solid var(--line); }
.metrics div:last-child { border-right: 0; }
.metrics strong { display: block; font-size: 30px; color: var(--blue); }
.metrics span { display: block; margin-top: 6px; color: var(--muted); font-size: 13px; }

.section { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }

.about {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(420px, 1.1fr);
  align-items: center;
  gap: clamp(48px, 7vw, 100px);
  padding-top: 104px;
  padding-bottom: 104px;
}

h2 { margin: 0 0 30px; font-size: clamp(36px, 4.4vw, 62px); line-height: 1.12; }
.section-copy > p:not(.eyebrow) { color: #4d5661; font-size: 16px; line-height: 1.9; }
.about figure { margin: 0; }
.about figure img { display: block; width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.about figcaption { margin-top: 12px; color: var(--muted); font-size: 12px; }

.solutions { padding-top: 96px; padding-bottom: 112px; border-top: 1px solid var(--line); }
.section-heading { max-width: 760px; }
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 54px; }
.solution-grid article { min-height: 270px; padding: 30px; background: var(--white); border-top: 4px solid var(--blue); border-radius: 4px; }
.solution-grid article:nth-child(2) { border-top-color: var(--cyan); }
.solution-grid article:nth-child(3) { border-top-color: var(--signal); }
.solution-grid article > span { color: var(--muted); font-size: 13px; font-weight: 700; }
.solution-grid h3 { margin: 48px 0 18px; font-size: 23px; }
.solution-grid p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }

.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: end;
  gap: 56px;
  padding: 86px max(24px, calc((100vw - 1180px) / 2));
  background: #121820;
  color: var(--white);
}

.contact h2 { margin-bottom: 0; }
.contact address { font-style: normal; padding-bottom: 10px; }
.contact address a { display: inline-block; margin-bottom: 18px; color: #7ee9f3; font-size: clamp(26px, 3vw, 42px); font-weight: 800; }
.contact address p { max-width: 520px; margin: 0; color: #bdc5ce; line-height: 1.8; }

footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 24px max(24px, calc((100vw - 1180px) / 2));
  background: #090d12;
  color: #8d98a5;
  font-size: 12px;
}

@media (max-width: 860px) {
  .site-header { grid-template-columns: 1fr auto; min-height: 72px; padding: 10px 20px; }
  .brand img { width: 38px; height: 44px; }
  nav { display: none; }
  .phone { font-size: 12px; }
  .hero { height: 82vh; min-height: 620px; }
  .hero-content { width: calc(100% - 40px); }
  h1 { font-size: clamp(52px, 18vw, 76px); }
  .hero-shade { background: linear-gradient(90deg, rgba(5, 12, 28, .88), rgba(5, 12, 28, .38)); }
  .hero-media { object-position: 58% center; }
  .metrics { width: 100%; grid-template-columns: 1fr; }
  .metrics div { padding: 22px 24px; border-right: 0; border-bottom: 1px solid var(--line); }
  .section { width: calc(100% - 40px); }
  .about { grid-template-columns: 1fr; gap: 44px; padding-top: 72px; padding-bottom: 72px; }
  .solution-grid { grid-template-columns: 1fr; }
  .solution-grid article { min-height: 220px; }
  .solution-grid h3 { margin-top: 32px; }
  .contact { grid-template-columns: 1fr; align-items: start; padding: 68px 20px; }
  footer { flex-direction: column; padding: 24px 20px; }
}

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