.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 180px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  transition: 0.35s ease;
}

/* メインボタン */
.btn-primary {
  color: #ffffff;
  background: #1e5aa8;
  border: 1px solid #1e5aa8;
}

.btn-primary:hover {
  background: #2f74cd;
  border-color: #2f74cd;
  transform: translateY(-3px);
}

/* サブボタン */
.btn-outline {
  color: #1e5aa8;
  border: 1px solid #1e5aa8;
  background: transparent;
}

.btn-outline:hover {
  color: #ffffff;
  background: #1e5aa8;
  border-color: #1e5aa8;
  transform: translateY(-3px);
}