/* 遮罩层 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  /* 模态框容器 */
  .modal-container {
    background: white;
    position: relative;
    border-radius: 8px;
    animation: modalSlideIn 0.3s ease-out;
  }
  
  /* 关闭按钮 */
  .modal-close {
    position: absolute;
    right: 20px;
    top: 15px;
    font-size: 24px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
  }
  
  @keyframes modalSlideIn {
    from {
      transform: translateY(-50px);
      opacity: 0;
    }
    to {
      transform: translateY(0);
      opacity: 1;
    }
  }