body {
  background: linear-gradient(135deg, #00c9ff, #92fe9d);
}

.neon {
  text-shadow: 0 0 5px #fff,
               0 0 10px #00f,
               0 0 20px #0ff,
               0 0 40px #0ff;
}

.app-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
  border-radius: 16px;
  transition: transform 0.2s ease;
  background: rgba(0,0,0,0.05);  /* ← 薄いグレー背景 */
}

.app-card:hover {
  transform: scale(1.05);
}

.app-card img {
  width: 100px;
  height: 100px;
  margin-bottom: 12px;
}

.app-label {
  display: block;
  font-size: 1.2rem;
  font-weight: 600;
  color: #222;  /* 白固定 */
  text-align: center;
}

@media (max-width: 768px) {
  .app-card img {
    width: 80px;
    height: 80px;
  }
  .app-label {
    font-size: 1.4rem; /* スマホは文字を大きめに */
  }
}