body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background: #f5f7fb;
  color: #1f2937;
  line-height: 1.6;
}
.header {
  background: linear-gradient(135deg, #2f5580, #4090b4);
  color: white;
  padding: 48px 24px;
  text-align: center;
}
.header h1 {
  margin: 0;
  font-size: 36px;
}
.header p {
  margin: 12px auto 0;
  max-width: 760px;
  opacity: 0.9;
  font-size: 18px;
}
.container {
  max-width: 920px;
  margin: 32px auto;
  padding: 0 20px;
}
.card {
  background: white;
  border: 1px solid #dbe3ee;
  border-radius: 20px;
  padding: 28px;
  margin-bottom: 24px;
  box-shadow: 0 10px 30px rgba(31, 41, 55, 0.06);
}
h2 {
  color: #2f5580;
  margin-top: 0;
}
a {
  color: #2f5580;
  font-weight: 700;
}
.footer {
  text-align: center;
  color: #6b7280;
  padding: 32px 16px;
  font-size: 14px;
}
.nav {
  margin-top: 20px;
}
.nav a {
  display: inline-block;
  margin: 8px;
  padding: 10px 16px;
  background: white;
  color: #2f5580;
  border-radius: 999px;
  text-decoration: none;
}
ul {
  padding-left: 22px;
}