.nav-content {
  display: flex;
  align-items: center;
  height: 40px;
  box-sizing: border-box;
  padding-top: 8px;
}

.nav-left {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
}

.nav-center {
  flex: 1;
  display: flex;
  align-items: center;
}

.nav-title {
  font-size: 18px;
  font-weight: 600;
  color: #333;
  text-align: center;
}