Color Water Sort

Initial Interface: When the game starts, you will see a row of liquids of different colors contained in cups. The liquids in the cups are arranged in layers in a specific order, and there is a rich variety of colors.
Operation Method: Click on the cup containing the liquid that you want to operate on. At this time, the topmost layer of liquid in the cup will be selected. Then, click on the target cup. If the color of the liquid at the top of the target cup is the same as the color of the selected liquid, or if the target cup is empty, you can pour the selected liquid into it. In simple terms, the liquid transfer is completed through the convenient operation process of "click - select - click - pour".
Core Rules: Each color of liquid needs to be completely placed back into the same cup, and no other colored liquids should be mixed in. For example, all the red liquid should be concentrated in one cup and should not be mixed with other colored liquids such as blue or green. If the color of the liquid to be poured is different from the color of the liquid at the top of the target cup, the pouring operation cannot be carried out.
Goal Achievement: When all the liquids of different colors are successfully sorted, gathered in separate cups respectively, and the liquids in the cups are pure without any mixed colors, you have successfully passed the current level.
Special Situations: As the levels progress, the number of cups will increase, and the combinations of liquid colors will become more complex. There may even be some special cups, such as those with a fixed capacity or restricted pouring times, which add more challenges and fun to the game.