.choices_button-container {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  max-width: 1000px;
  margin: 0 auto;
}

.double_choices_button-container {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(264px, 1fr));
  max-width: 1000px;
  margin: 10px auto auto auto;
}

.choices_button,
.double_choices_button {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: #ffffff;
  font-size: 18px;
  border-radius: 5px;
  height: 40px;
  font-weight: bold;
  transition: 0.3s;
  background-color: #1976d2;
}

.choices_button:hover,
.double_choices_button:hover {
  opacity: 0.7;
}

/* スマホでは2列にする */
@media (max-width: 768px) {
  .choices_button-container {
    grid-template-columns: repeat(2, 1fr);
  }
  .double_choices_button-container {
    grid-template-columns: repeat(1, 1fr);
  }
}