var bgmPlaying = false; var bgmPlayer = document.getElementById(‘bgm-player’); var bgmButton = document.getElementById(‘bgm-toggle’); // 页面加载后尝试自动播放 window.addEventListener(‘load’, function() { bgmPlayer.volume = 0.3; bgmPlayer.play().then(function() { bgmPlaying = true; bgmButton.textContent = ‘Mute Music’; }).catch(function(e) { console.log(‘Autoplay blocked by browser, user interaction required’); bgmPlaying = false; bgmButton.textContent = ‘Play Music’; }); }); function toggleBGM() { if (bgmPlaying) { bgmPlayer.pause(); bgmButton.textContent = ‘🔇 Play Music’; bgmPlaying = false; } else { bgmPlayer.play().then(function() { bgmButton.textContent = ‘🎵 Mute Music’; bgmPlaying = true; }).catch(function(e) { console.log(‘Play failed:’, e); }); } }