/* 页面保存为图片按钮样式 */
#save-image-btn {
  position: fixed;
  top: 140px;
  right: 20px;
  width: 45px;
  height: 45px;
  background-color: rgba(255, 255, 255, 0.9);
  border: 2px solid #dce6f0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  color: #2f4154;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  z-index: 999;
  transition: all 0.3s ease;
  user-select: none;
}

#save-image-btn:hover {
  background-color: #fff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transform: scale(1.05);
}

#save-image-btn:active {
  transform: scale(0.95);
}

#save-image-btn.loading {
  pointer-events: none;
  opacity: 0.7;
}

#save-image-btn.loading {
  animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.7;
  }
  50% {
    opacity: 1;
  }
}

/* 暗色模式适配 */
[data-user-color-scheme="dark"] #save-image-btn {
  background-color: rgba(37, 45, 56, 0.9);
  border-color: #435266;
  color: #c4c6c9;
}

[data-user-color-scheme="dark"] #save-image-btn:hover {
  background-color: #252d38;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* 消息提示 */
.save-image-message {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  background-color: rgba(0, 0, 0, 0.8);
  color: #fff;
  padding: 15px 30px;
  border-radius: 8px;
  font-size: 16px;
  z-index: 9999;
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
}

.save-image-message.show {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

/* 移动端适配 */
@media (max-width: 768px) {
  #save-image-btn {
    top: 120px;
    right: 15px;
    width: 40px;
    height: 40px;
    font-size: 16px;
  }

  .save-image-message {
    font-size: 14px;
    padding: 12px 24px;
  }
}