// 劍氣特效 (X 型 + 隨機劍鳴 + 擊中特效)
document.addEventListener("click", e=>{
  // 劍氣裂痕
  const slash=document.createElement("div");
  slash.className="slash";
  slash.style.left=e.pageX-75+"px";
  slash.style.top=e.pageY+"px";
  document.body.appendChild(slash);
  setTimeout(()=>slash.remove(),600);

  // 隨機播放劍鳴
  const sounds = [
    document.getElementById("sword-sound-1"),
    document.getElementById("sword-sound-2"),
    document.getElementById("sword-sound-3")
  ];
  const pick = sounds[Math.floor(Math.random()*sounds.length)];
  pick.currentTime=0;
  pick.play();

  // 擊中特效
  const el = document.elementFromPoint(e.clientX, e.clientY);
  if(el && el.tagName !== "BODY" && el.tagName !== "HTML") {
    // 閃光
    const flash=document.createElement("div");
    flash.className="hit-flash";
    flash.style.left=(e.pageX-40)+"px";
    flash.style.top=(e.pageY-40)+"px";
    document.body.appendChild(flash);
    setTimeout(()=>flash.remove(),500);

    // 元素震動
    el.classList.add("shake");
    setTimeout(()=>el.classList.remove("shake"),300);
  }
});

<script defer data-domain="html.cafe" src="https://milkymouse.com/js/script.js"></script>