:root {
  --ai-violet: #7c4dff;
  --ai-cyan: #00b8d4;
  --ai-ink: #15182a;
  --ai-muted: #5f6475;
  --ai-card: rgba(255, 255, 255, 0.78);
}

[data-md-color-scheme="slate"] {
  --ai-card: rgba(25, 28, 48, 0.8);
  --ai-muted: #b2b7cb;
}

body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI",
    "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

.md-header,
.md-tabs {
  background: linear-gradient(100deg, #4c1d95 0%, #5b21b6 48%, #047c91 100%);
}

.md-typeset h1,
.md-typeset h2 {
  font-weight: 750;
  letter-spacing: -0.025em;
}

.md-typeset code {
  border-radius: 0.35rem;
}

.hero {
  position: relative;
  overflow: hidden;
  margin: 0 0 2rem;
  padding: clamp(2rem, 6vw, 4.6rem) clamp(1.4rem, 5vw, 4rem);
  border: 1px solid rgba(124, 77, 255, 0.2);
  border-radius: 1.25rem;
  background:
    radial-gradient(circle at 84% 18%, rgba(0, 184, 212, 0.3), transparent 34%),
    radial-gradient(circle at 15% 85%, rgba(124, 77, 255, 0.24), transparent 38%),
    linear-gradient(145deg, rgba(124, 77, 255, 0.08), rgba(0, 184, 212, 0.04));
}

.hero::after {
  content: "";
  position: absolute;
  top: -4rem;
  right: -4rem;
  width: 15rem;
  height: 15rem;
  border: 1px solid rgba(0, 184, 212, 0.25);
  border-radius: 50%;
  box-shadow: 0 0 0 2.8rem rgba(124, 77, 255, 0.05),
    0 0 0 5.6rem rgba(0, 184, 212, 0.04);
}

.hero__eyebrow {
  margin: 0 0 0.75rem;
  color: var(--ai-violet);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1 {
  position: relative;
  z-index: 1;
  max-width: 15ch;
  margin: 0;
  font-size: clamp(2rem, 6vw, 4.2rem);
  line-height: 1.04;
  background: linear-gradient(100deg, #5b21b6, #008da5);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

[data-md-color-scheme="slate"] .hero h1 {
  background: linear-gradient(100deg, #b9a2ff, #6ee7f7);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lead {
  position: relative;
  z-index: 1;
  max-width: 44rem;
  margin: 1.25rem 0 1.6rem;
  color: var(--ai-muted);
  font-size: clamp(1rem, 2vw, 1.25rem);
  line-height: 1.75;
}

.hero__actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero__actions .md-button {
  border-radius: 999px;
}

.grid.cards > ul > li {
  border: 1px solid rgba(124, 77, 255, 0.14);
  border-radius: 0.85rem;
  background: var(--ai-card);
  box-shadow: 0 0.45rem 1.4rem rgba(26, 18, 58, 0.05);
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.grid.cards > ul > li:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 184, 212, 0.45);
  box-shadow: 0 0.7rem 1.8rem rgba(26, 18, 58, 0.1);
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
  margin: 1.5rem 0;
}

.metric-strip > div {
  padding: 1rem;
  border-left: 3px solid var(--ai-cyan);
  border-radius: 0.45rem;
  background: rgba(0, 184, 212, 0.06);
}

.metric-strip strong,
.metric-strip span {
  display: block;
}

.metric-strip strong {
  margin-bottom: 0.25rem;
  font-size: 1.1rem;
}

.metric-strip span {
  color: var(--ai-muted);
  font-size: 0.72rem;
}

@media screen and (max-width: 44.984375em) {
  .metric-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero {
    border-radius: 0.8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .grid.cards > ul > li {
    transition: none;
  }
}