:root {
  --bg-start: #f6f8ff;
  --bg-end: #dff3ff;
  --ink-main: #0e1f3f;
  --ink-sub: #3b517e;
  --card-bg: rgba(255, 255, 255, 0.72);
  --card-border: rgba(36, 91, 190, 0.18);
  --accent: #0b66ff;
  --accent-hover: #064ac2;
  --shadow: 0 14px 40px rgba(35, 84, 173, 0.16);
  --radius: 18px;
  --max-width: 1080px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink-main);
  font-family: "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  background: linear-gradient(135deg, var(--bg-start), var(--bg-end));
  overflow-x: hidden;
}

.background-glow {
  position: fixed;
  inset: -20% -10% auto auto;
  width: 44vw;
  height: 44vw;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, rgba(14, 123, 255, 0.28), rgba(14, 123, 255, 0));
  pointer-events: none;
  animation: float 8s ease-in-out infinite alternate;
}

.page {
  width: min(100% - 2.2rem, var(--max-width));
  margin: 0 auto;
  padding: 5rem 0 2.8rem;
}

.hero {
  animation: rise-in 700ms ease-out both;
}

.eyebrow {
  margin: 0 0 0.8rem;
  font-family: "Source Han Serif SC", "Noto Serif SC", serif;
  font-size: 0.95rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-sub);
}

h1 {
  margin: 0;
  max-width: 14ch;
  font-family: "Source Han Serif SC", "Noto Serif SC", serif;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.15;
}

.description {
  max-width: 52ch;
  margin: 1.2rem 0 1.8rem;
  color: var(--ink-sub);
  font-size: clamp(1rem, 2.4vw, 1.2rem);
  line-height: 1.8;
}

.cta {
  display: inline-block;
  padding: 0.72rem 1.2rem;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  transition: background-color 180ms ease, transform 180ms ease;
}

.cta:hover,
.cta:focus-visible {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.highlights {
  margin-top: 2.4rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.highlights article {
  padding: 1.1rem 1rem;
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  background: var(--card-bg);
  box-shadow: var(--shadow);
  animation: rise-in 700ms ease-out both;
}

.highlights article:nth-child(2) {
  animation-delay: 90ms;
}

.highlights article:nth-child(3) {
  animation-delay: 180ms;
}

.highlights h2 {
  margin: 0;
  font-family: "Source Han Serif SC", "Noto Serif SC", serif;
  font-size: 1.14rem;
}

.highlights p {
  margin: 0.75rem 0 0;
  color: var(--ink-sub);
  line-height: 1.7;
  font-size: 0.98rem;
}

.footer {
  width: min(100% - 2.2rem, var(--max-width));
  margin: 0 auto;
  padding: 0 0 1.8rem;
  color: var(--ink-sub);
  font-size: 0.9rem;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }
  to {
    transform: translate3d(-5%, 4%, 0) scale(1.06);
  }
}

@media (max-width: 860px) {
  .page {
    padding-top: 4rem;
  }

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