* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
a {
  text-decoration: none;
  color: #000;
}
.bx{
  width: 1200px;
  margin: 0 auto;
}
.header-box{
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  width: 100%;
  background-color: #fff;
}
.header {
  
  display: flex;
  align-items: center;
  height: 60px;
  background-color: #fff;
}
.header .header-left {
  width: 126px;
  height: 40px;
  margin-right: 100px;
}
.header .header-left img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.header .tab {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 70px;
}
.header .tab .tab-item {
  cursor: pointer;
  height: 22px;
  font-family: PingFangSC, PingFang SC;
  font-weight: 500;
  font-size: 16px;
  color: #333333;
  line-height: 22px;
}
.header .tab .tab-item.select {
  color: #4ACEA7;
  position: relative;
}
.header .tab .tab-item.select::after {
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  content: ' ';
  display: block;
  width: 32px;
  height: 2px;
  background-color: #00D2A5;
}