body {
    font-family: sans-serif;
    text-align: center;
    background: linear-gradient(to bottom, #ffe4e1, #fff);
    margin: 0;
    padding: 0;
  }
  
  .loading {
    padding: 100px;
    font-size: 24px;
    color: gray;
  }
  
  .welcome {
    padding: 30px;
  }
  
  .petal-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin: 20px;
  }
  
  .petal {
    width: 40px;
    height: 40px;
    background-color: transparent;
    border-radius: 0;
    transform: rotate(0);
    cursor: pointer;
    font-size: 30px;
    animation: float 3s ease-in-out infinite;
    text-shadow: 0 0 5px rgba(255, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    color: red; /* 添加颜色确保可见 */
    font-family: "Segoe UI Emoji", "Apple Color Emoji", "Noto Color Emoji", sans-serif; /* 确保支持emoji */
  }
  
  @keyframes float {
    0%, 100% {
      transform: translateY(0);
    }
    50% {
      transform: translateY(-10px);
    }
  }
  
  .petal:active {
    animation: click 0.3s;
  }
  
  @keyframes click {
    0% {
      transform: scale(1);
    }
    50% {
      transform: scale(0.9);
    }
    100% {
      transform: scale(1);
    }
  }