.main {
  position: relative;
  width: 100vw;
  height: 100vh;
  padding-top: 0.5rem;
  overflow: hidden;
  background: #f0f0f0;
}
.main .logo {
  display: flex;
  justify-content: center;
}
.main .logo img {
  width: 11rem;
  height: auto;
}
.main .swiper_item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-bottom: 0.4rem;
}
.main .swiper_item .swiper_img img {
  width: 100%;
  height: auto;
}
.main .swiper_item .swiper_title {
  margin-top: 0.6rem;
}
.main .swiper_item .swiper_title img {
  width: 100%;
}
.main .swiper_item .swiper_list {
  margin-top: 1.2rem;
}
.main .swiper_item .swiper_list img {
  width: 100%;
}
.main .main_swiper {
  margin-top: 2rem;
  position: relative;
}
.main .main_swiper .swiper_next {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
}
.main .main_swiper .swiper_next img {
  width: 1.6rem;
}
.main .main_swiper .swiper_prev {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
}
.main .main_swiper .swiper_prev img {
  width: 1.6rem;
}
.main .main_btns {
  margin-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  padding: 0 1rem;
}
.main .main_btns .main_btn {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 30%;
  height: 2rem;
  border-radius: 2rem;
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  background: url('../images/btnBg.png') no-repeat center center;
  background-size: cover;
}
.main p {
  font-size: 0.7rem;
  color: #5c5c5c;
  margin-top: 0.8rem;
  text-align: center;
}
.main .main_teach {
  color: #6992ff;
  font-size: 0.8rem;
  margin-top: 0.2rem;
  text-align: center;
  font-weight: 500;
}
.main .main_download {
  position: absolute;
  bottom: 11.5rem;
  right: 0;
  width: 5rem;
  height: 2rem;
  border-radius: 5rem 0 0 5rem;
  background-color: #000;
}
.main .main_download a {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
}
.main .main_download img {
  width: 1rem;
}
.main .main_download span {
  margin-left: 0.2rem;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
}