#banner{
  height: 100vh;
  overflow: hidden;
  position: relative;
}
#banner .item{
  height: 100vh;
}
#banner img{
  width: 100%;
  height: 100%;
  object-fit: cover;
}
#banner .owl-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  z-index: 9;
  transform: translate(-50%, -50%);
}
#banner .owl-dots button{
  width: 10px;
  height: 10px;
  background: transparent;
  border: 1px solid #fff;
  border-radius: 50%;
  margin: 0 2px;
}
#banner .owl-dots .active{
  background: #fff;
}
.header_caption {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.217) 34.24%, rgba(0, 0, 0, 0.7) 100%);

  z-index: 9;
}
.main_caption {
  font-size: 50px;
  font-weight: 700;
  color: #FAFDFF;
  width: 820px;
  line-height: 60px;
  margin: auto;
}