.page {
  height: 100vh;
  background-image: url('../img/index-bg@2x.png');
  background-repeat: no-repeat;
  background-size: cover;
  position: relative;
}
.btn {
  width: 267px;
  height: 98px;
  background-image: url('../img/index-btn@2x.png');
  background-repeat: no-repeat;
  background-size: cover;
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  cursor: pointer;
}