body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: #eff6ff;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}

.grid {
  width: min(760px, calc(100% - 40px));
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.cell {
  padding: 28px;
  background: #ffffff;
  border: 1px solid #bfdbfe;
  border-radius: 18px;
  text-align: center;
  font-weight: 700;
}