/* 半透明背景 */
.overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.5);
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

/* 弹窗 */
.popup {
  background: #fff;
  padding: 25px 35px;
  border-radius: 14px;
  text-align: center;
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);
  transform: scale(0.7);
  opacity: 0;
  transition: all 0.3s ease;
  max-width: 320px;
  width: 90%;
}
.popup.show {
  transform: scale(1);
  opacity: 1;
}

.popup h2 {
  margin: 0 0 12px;
  font-size: 20px;
  color: #333;
}
.popup p {
  margin: 0 0 18px;
  font-size: 15px;
  color: #555;
}

.popup button {
  background: var(--popNoticeBtn);
  color: var(--popNoticeBtn_text);
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  transition: 0.2s;
}
.popup button:hover {
  background: var(--popNoticeBtn_hover);
}