body {
  margin: 0;
  font-family: Arial, 'Microsoft YaHei', sans-serif;
  background: #f5f7fb;
  color: #162033;
  display: grid;
  place-items: center;
  min-height: 100vh;
}
.box {
  box-sizing: border-box;
  background: #fff;
  border: 1px solid #e4e8f0;
  padding: 36px;
  width: min(480px, calc(100% - 48px));
  box-shadow: 0 12px 40px #263a5c14;
}
p {
  color: #667085;
  line-height: 1.7;
}
nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 28px;
}
a {
  padding: 14px;
  text-align: center;
  text-decoration: none;
  color: #fff;
  background: #ff5a19;
  border-radius: 6px;
}
a + a {
  background: #3f6df6;
}
@media (max-width: 520px) {
  nav {
    grid-template-columns: 1fr;
  }
}