/* 基本的样式和布局 */
#popup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #0804299C;
  z-index: 999;
  display: none;
}

.popup-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  padding: 30px 50px;
  max-width: 400px;
  width: 100%;
  opacity: 0;
  visibility: hidden;
  display: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.popup-modal.show {
  display: block;
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.popup-modal-header {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 18px;
  font-weight: 700;
  line-height: 24px;
}

.popup-modal-header h2 {
  margin: 0;
  font-size: 18px;
}

.popup-modal-header .close-btn {
  cursor: pointer;
  font-size: 20px;
  font-weight: bold;
  color: #333;
}

.popup-modal-body {
  margin-bottom: 20px;
}

.popup-modal-footer {
  text-align: right;
}

.popup-modal-footer button {
  padding: 8px 16px;
  background-color: #4caf50;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.popup-modal-footer button:hover {
  background-color: #45a049;
}

.popup-modal-footer .cancel-btn {
  background-color: #f44336;
  margin-right: 10px;
}

.popup-modal-footer .cancel-btn:hover {
  background-color: #e53935;
}

@media (max-width: 768px) {
  .popup-modal {
    max-width: 96%;
    padding: 24px 30px;
  }
}