如何在第二次按下后将按钮背景颜色恢复为默认颜色？

<button id="myButton" style="background-color: #ccc;">按钮</button>

var button = document.getElementById("myButton");
button.addEventListener("click", changeBackgroundColor);

var clickCount = 0;

function changeBackgroundColor() {
  clickCount++;
  
  if (clickCount === 2) {
    button.style.backgroundColor = "#ccc";
    clickCount = 0; // 重置点击次数
  }
}