body {
  background-image: url('https://files.catbox.moe/hgnomm.jpg');
  background-size: cover;
  background-position: center;
  font-family: 'Noto Sans JP', sans-serif;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  overflow-y: auto; /* 页面可以滚动 */
}

h1 {
  font-size: 45px;
  color: #ffffff;
  letter-spacing: 1px; /* 字间距 */
  margin-top: 100px; /* 页面顶部留白 */
  text-align: center;
  text-shadow: 3px 2px 3px rgba(0,0,0,0.3); /* 轻微阴影更清楚 */
}

.button-container {
  display: flex;
  flex-direction: column;
  gap: 50px; /* 按钮之间的间隔 */
  align-items: center;
  margin-top: 72px; /* 标题与按钮之间距离 */
}

button {
  background-color: #3bb8df; /* 稍微深一点的浅蓝 */
  color: white;
  border: 3px solid white;
  border-radius: 12px;
  padding: 15px 50px; /* 加宽左右空白 */
  font-size: 22px;
  letter-spacing: 1px;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.3s;
}

button:hover {
  background-color: #f7b5cf; /* 更浅的粉色 */
  transform: scale(1.05);
}

.button-container button:last-child {
  margin-bottom: 150px;
}