:root {
  --bg: #111827;
  --panel: #192235;
  --ink: #f9fafb;
  --muted: #cbd5e1;
  --line: #334155;
  --accent: #8fb7ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

main {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
  padding: 72px 0;
}

.intro {
  padding-bottom: 36px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.08;
}

h2 {
  margin: 0 0 12px;
  font-size: 20px;
}

p {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 32px;
}

article {
  min-height: 170px;
  padding: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
}

@media (max-width: 760px) {
  main {
    width: min(100% - 24px, 1040px);
    padding: 42px 0;
  }

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