body * {
  box-sizing: border-box;
  flex-shrink: 0;
}
body {
  margin: 0;
  overflow-x: hidden;
  font-family: PingFangSC-Regular, Roboto, Helvetica Neue, Helvetica, Tahoma,
    Arial, PingFang SC-Light, Microsoft YaHei;
}
button {
  margin: 0;
  padding: 0;
  border: 1px solid transparent;
  outline: none;
  background-color: transparent;
}
input {
  outline: none;
  border: none;
  background-color: rgba(245, 245, 245, 1);
}
button:active {
  opacity: 0.6;
}
.flex-col {
  display: flex;
  flex-direction: column;
}
.flex-row {
  display: flex;
  flex-direction: row;
}