:root {
  color-scheme: light;
  --ink: #192132;
  --muted: #5f6b7d;
  --line: #dce4ef;
  --surface: #f8faff;
  --blue: #2e72e8;
  --blue-hover: #2463ce;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #f4f7fb;
  color: var(--ink);
  font-family: "Segoe UI", "Microsoft YaHei UI", system-ui, sans-serif;
}
a { color: inherit; text-decoration: none; }
.site-header {
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.brand img { width: 30px; height: 30px; object-fit: contain; }
nav { display: flex; gap: 30px; color: var(--muted); font-size: 14px; }
nav a:hover { color: var(--blue); }
main { max-width: 1180px; margin: 0 auto; padding: 0 28px 60px; }
.hero {
  min-height: 610px;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(480px, 1.1fr);
  align-items: center;
  gap: 54px;
  border-top: 1px solid var(--line);
}
.eyebrow { color: var(--blue); font-size: 12px; font-weight: 700; letter-spacing: 0.08em; }
h1 { margin: 12px 0 18px; font-size: 76px; line-height: 1; letter-spacing: 0; }
.lede { max-width: 570px; color: var(--muted); font-size: 20px; line-height: 1.7; }
.actions { display: flex; gap: 12px; margin-top: 34px; }
.actions a, .actions span {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border-radius: 7px;
  font-weight: 600;
}
.primary { background: var(--blue); color: #f8faff; }
.primary:hover { background: var(--blue-hover); }
.primary.disabled { opacity: 0.55; }
.secondary { border: 1px solid var(--line); background: var(--surface); }
.release { margin-top: 16px; color: var(--muted); font-size: 13px; }
.hero-visual img { display: block; width: 100%; height: auto; object-fit: contain; }
.capabilities {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.capabilities > div { padding: 34px 30px 38px; }
.capabilities > div + div { border-left: 1px solid var(--line); }
.capabilities span { color: var(--blue); font-size: 12px; font-weight: 700; }
.capabilities h2 { margin: 15px 0 10px; font-size: 19px; }
.capabilities p { margin: 0; color: var(--muted); line-height: 1.7; }
footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 22px 28px 34px;
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 12px;
}
@media (max-width: 860px) {
  nav a:first-child { display: none; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding: 60px 0 40px; }
  h1 { font-size: 56px; }
  .hero-visual { order: -1; }
  .capabilities { grid-template-columns: 1fr; }
  .capabilities > div + div { border-left: 0; border-top: 1px solid var(--line); }
}