/* pages/downZS/index.wxss */
.downZS {
  width: 750rpx;
  height: 100vh;
  position: relative;
}

.downZS-item {
  width: 100%;
  height: 100%;
}

.btn {
  position: absolute;
  bottom: 10vh;
  z-index: 1;
  left: 50%;
  transform: translateX(-50%);
}