.header {
  width: 100%;
  height: 0.8rem;
  background-color: #ff0000;
  position: fixed;
  top: 0;
  left: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 0.32rem;
  color: #ffffff;
  font-weight: 400;
}
.header img {
  position: absolute;
  top: 50%;
  left: 0.12rem;
  width: 0.36rem;
  height: 0.36rem;
  transform: translateY(-50%) rotate(180deg);
}
.header-space {
  height: 0.8rem;
}
.content {
  padding: 0.2rem;
}