#cta {
  position: fixed;
  top: 0;
  left: 50%;
  margin: 110px 0 0 480px;
  
  z-index: 20;
  font-size: 15px;
  font-weight: bold;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#cta a {
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 12px 12px 14px;
  border-radius: 10px 10px 10px 10px;
  border-top: 2px solid #2cabe2;
  border-left: 2px solid #2cabe2;
  border-bottom: 2px solid #2cabe2;
  border-right: 2px solid #2cabe2;
  background-color: #ffffff;
  color: #2cabe2;

  /* 縦書き関連のスタイル */
  writing-mode: vertical-rl;
  text-orientation: upright;
  letter-spacing: 0.3em;
  line-height: 1.2;
}

#cta a:hover {
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 12px 12px 14px;
  border-radius: 10px 10px 10px 10px;
  border-top: 2px solid #2cabe2;
  border-left: 2px solid #2cabe2;
  border-bottom: 2px solid #2cabe2;
  border-right: 2px solid #2cabe2;
  background-color: #2cabe2;
  color: #ffffff;

  /* 縦書き関連のスタイル */
  writing-mode: vertical-rl;
  text-orientation: upright;
  letter-spacing: 0.3em;
  line-height: 1.2;
}