@charset 'UTF-8';

.btnpc {
  position: fixed;
  bottom: 20px;
  left: 2%;
  z-index: 1000;
  width: 170px;
}

.btnpc img {
  max-width: 100%;
}

.btnsp {
  display: none;
}

@media (max-aspect-ratio: 1/1), (max-width: 768px) {
  .btnpc {
    display: none;
  }

  .btnsp {
    display: block;
    position: relative;
    top: 0;
    width: 100%;
    text-align: center;
    z-index: 1000;
    left: 0;
    font-size: 0;
  }

  .btnsp img {
    max-height: 32px;
    margin: auto;
  }
}