ul {
  padding: 0;
  list-style: none;
}

.swiper-list {
  width: 70%;
  height: 580px;
  margin: 0 auto;
  margin-top: 70px;
  position: relative;
  overflow: hidden;
}
.swiper-list-index {
  margin-top: -20px;
}
@media screen and (max-width: 1900px) {
  .swiper-list {
    height: 580px;
    width: 100%;
  }
  .swiper-main {
    margin-left: 75px;
  }
}
.swiper-main {
  height: 100%;
  position: relative;
  overflow: hidden;
}
.swiper-main img {
  width: 1350px;
  height: 580px;
}
.swiper-item {
  height: 100%;
  display: inline;
  position: absolute;
}

.col-md-2 img {
  width: 100%;
  /* height: 100%; */
  display: block;
}

.swiper-spot {
  width: 100%;
  height: 15px;
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  bottom: 10px;
}

.swiper-spot .spot-item {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background-color: #ccc;
  margin-left: 10px;
}

.swiper-spot .spot-item:nth-of-type(1) {
  margin-left: 0;
}

.leftBtn {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
}

.rightBtn {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
}

.leftBtn,
.rightBtn {
  width: 60px;
  height: 60px;
  padding: 15px;
  background-color: rgba(255, 255, 255, 0.1);
}

.leftBtn:hover,
.rightBtn:hover {
  width: 60px;
  height: 60px;
  padding: 15px;
  background-color: rgba(255, 255, 255, 0.5);
}