/* features--card: 講座セクションのカード風ラッパー */
.features--card {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  border: 2px solid var(--color-gray-border, #e0e0e0);
  border-radius: 18px;
  margin-bottom: 40px;
  padding: 40px 40px;
  overflow: visible;
  background: transparent;
}

@media (max-width: 768px) {
  .features--card {
    padding: 24px 24px;
    margin-bottom: 24px;
    border-radius: 12px;
  }
}

@media (max-width: 480px) {
  .features--card {
    padding: 8px 8px;
  }
}