:root {
  color: #17213c;
  background: #f5f7fc;
  font-family:
    Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 12% 5%, rgba(90, 80, 226, 0.14), transparent 28rem),
    #f5f7fc;
  color: #17213c;
  line-height: 1.75;
}

a {
  color: inherit;
}

.site-header {
  border-bottom: 1px solid rgba(23, 33, 60, 0.08);
  background: rgba(255, 255, 255, 0.88);
}

.site-header__inner,
.page-shell,
.site-footer__inner {
  width: min(100% - 2rem, 72rem);
  margin: 0 auto;
}

.site-header__inner {
  display: flex;
  min-height: 4.5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  color: #29209b;
  font-size: 1.125rem;
  font-weight: 700;
  text-decoration: none;
}

.header-action {
  border: 1px solid #dadcf0;
  border-radius: 999px;
  padding: 0.5rem 1rem;
  background: #fff;
  color: #4a4f68;
  font-size: 0.875rem;
  text-decoration: none;
}

.page-shell {
  padding: 5rem 0 4rem;
}

.hero {
  max-width: 52rem;
}

.eyebrow {
  display: inline-flex;
  margin: 0 0 1rem;
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  background: #ebeafd;
  color: #4c43c5;
  font-size: 0.875rem;
  font-weight: 600;
}

h1 {
  margin: 0;
  color: #151b30;
  font-size: clamp(2.25rem, 6vw, 4.25rem);
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.lead {
  margin: 1.5rem 0 0;
  color: #596079;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 3rem;
}

.content-card {
  border: 1px solid rgba(40, 48, 82, 0.09);
  border-radius: 1.25rem;
  padding: 1.75rem;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 1rem 3rem rgba(49, 45, 111, 0.07);
}

.content-card h2 {
  margin: 0 0 0.75rem;
  color: #242a42;
  font-size: 1.25rem;
  line-height: 1.4;
}

.content-card p,
.content-card ul {
  margin: 0;
  color: #626980;
}

.content-card ul {
  padding-left: 1.25rem;
}

.content-card li + li {
  margin-top: 0.35rem;
}

.page-note {
  margin-top: 1.5rem;
  border-left: 0.25rem solid #635bdb;
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
  background: #eeedff;
  color: #4a4f68;
}

.site-footer {
  border-top: 1px solid rgba(23, 33, 60, 0.08);
  background: #fff;
}

.site-footer__inner {
  display: flex;
  min-height: 5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: #777d91;
  font-size: 0.875rem;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: #4c43c5;
  text-decoration: none;
}

@media (max-width: 44rem) {
  .page-shell {
    padding: 3.5rem 0 3rem;
  }

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

  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 1rem 0;
  }
}