body {
  background: #1D89E4;
}
.container {
  width: 720px;
  margin: 0 auto;
}
@media screen and (max-width: 768px) {
  .container {
    width: 100%;
    padding: 14rem 15rem;
  }
}
.main-desc {
  padding: 0 60px;
}
.wrap-h2 {
  font-size: 24px;
  font-weight: 600;
  color: #fff;
  line-height: 1.5;
  text-align: center;
  margin-bottom: 20px;
}
.wrap-h3 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  line-height: 1.5;
}
.wrap-desc {
  font-size: 14px;
  font-weight: normal;
  color: #fff;
  line-height: 1.5;
  margin-bottom: 20px;
}
.wrap-list {
  margin-bottom: 20px;
}
.wrap-list .wrap-list_item {
  font-size: 14px;
  font-weight: normal;
  color: #fff;
  line-height: 1.5;
}
.common-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 97px;
}
.common-nav_item {
  position: relative;
}
.common-nav_item.active .iconfont {
  transform: rotate(180deg);
}
.common-nav_item .drop-select {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.common-nav_link {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
}
.common-nav_link .iconfont {
  font-size: 18px;
}
.common-nav .drop-box {
  position: absolute;
  top: 30px;
  left: -18px;
  border-radius: 5px;
  background: #FFF;
  padding: 6px 0;
  width: 120px;
  display: none;
}
.common-nav .drop-content_item {
  padding: 12px;
  cursor: pointer;
  font-size: 16px;
  font-weight: normal;
  color: #374151;
  line-height: 1.2;
}
.common-nav .drop-content_item:hover {
  background-color: #E6F3FF;
}
.main {
  width: 1080px;
  width: 720px;
  margin: 0 auto;
  box-sizing: border-box;
  padding: 16px 0 100px;
  border-top: 1px solid #fff;
  border-bottom: 1px solid #fff;
}
@media screen and (max-width: 768px) {
  .main {
    width: 100%;
    padding: 0 15px;
  }
}
@media screen and (max-width: 768px) {
  .main {
    width: 100%;
    padding: 14rem 15rem;
  }
}
.main .banner {
  margin-bottom: 40px;
}
.main .banner-img {
  display: block;
  margin: 0 auto;
}
.main .banner-desc {
  color: #fff;
  text-align: center;
}
@media (max-width: 768px) {
  .common-nav {
    padding: 12rem 0;
  }
  .common-nav_link {
    font-size: 14rem;
  }
  .common-nav_link .iconfont {
    font-size: 16rem;
  }
  .common-nav .drop-box {
    top: 30rem;
    left: -20rem;
    border-radius: 5rem;
    padding: 6rem 0;
    width: 100rem;
  }
  .common-nav .drop-content_item {
    padding: 12rem;
    font-size: 16rem;
  }
  .main-desc {
    padding: 0;
  }
  .wrap-h2 {
    font-size: 20rem;
    margin-bottom: 20rem;
  }
  .wrap-h3 {
    font-size: 16rem;
  }
  .wrap-desc {
    font-size: 14rem;
    margin-bottom: 20rem;
  }
  .wrap-list {
    margin-bottom: 20rem;
  }
  .wrap-list .wrap-list_item {
    font-size: 14rem;
  }
  .main {
    padding: 10rem 15rem 100rem;
  }
  .banner {
    margin-bottom: 40px;
  }
  .banner-img {
    width: 234rem;
    height: 80rem;
    object-fit: cover;
  }
  .banner-desc {
    font-size: 14rem;
    line-height: 1.5;
    padding: 0 30rem;
  }
}