body {
  margin: 0;
  font-family: 'Helvetica Neue', sans-serif;
  background-color: #e6f0fa;
  color: #333;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px 20px;
}

.container {
  max-width: 800px;
  width: 100%;
  text-align: center;
}

h1 {
  color: #1e4b8a;
  font-size: 2rem;
  margin-bottom: 0.2em;
}

p {
  color: #555;
  font-size: 1rem;
  margin-bottom: 0.05em;
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

.link-button {
  background-color: #ffffff;
  text-decoration: none;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 1rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  flex: 1 1 auto;
  min-width: 80px;
  text-align: center;

  /* 追加: 画像中央配置のためのFlex指定 */
  display: flex;
  align-items: center;
  justify-content: center;
  height: 80px; /* 高さを揃える */
  width: 80px;

  flex-shrink: 0;

  /* 初期影 */
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.link-button img {
  max-height: 60%; /* ボタン内での縦サイズ調整 */
  max-width: 60%;
  object-fit: contain;
}

.link-button:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

footer {
  margin-top: 40px;
  font-size: 0.8rem;
  color: #888;
}