/* 你现有的 CSS 不变 */
.popup {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
}

.popup-content {
  background-color: white;
  padding: 20px;
  border-radius: 10px;
  max-width: 90%;
  max-height: 80%;
  overflow: auto;
  position: relative;
}

.popup-close {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 30px;
  font-weight: bold;
  color: #333;
  cursor: pointer;
}

.popup-close:hover {
  color: #ff0000;
}