.bgm-toggle{color:#fff;cursor:pointer;z-index:1002;-webkit-backdrop-filter:blur(10px);background:radial-gradient(circle,rgba(113,62,233,.694) 0%,rgba(138,92,246,.592) 100%);border-radius:50%;justify-content:center;align-items:center;width:60px;height:60px;font-size:1.5rem;transition:all .3s;display:flex;position:fixed;bottom:2rem;right:2rem;box-shadow:0 4px 15px rgba(108,43,217,.4)}.bgm-toggle:hover{background:linear-gradient(135deg,rgba(138,92,246,.867) 0%,var(--purple)100%);transform:scale(1.1);box-shadow:0 6px 20px rgba(108,43,217,.6)}.bgm-toggle:active{transform:scale(.95)}.bgm-toggle.playing{animation:2s ease-in-out infinite pulse}@keyframes pulse{0%,to{box-shadow:0 4px 15px rgba(108,43,217,.4)}50%{box-shadow:0 4px 25px rgba(108,43,217,.8)}}.bgm-toggle.playing svg{animation:.6s ease-in-out infinite musicBounce}@keyframes musicBounce{0%,to{transform:translateY(0)}50%{transform:translateY(-3px)}}@media (max-width:768px){.bgm-toggle{opacity:.85;width:50px;height:50px;font-size:1.2rem;top:15px;bottom:auto;left:1rem}.bgm-toggle.playing,.bgm-toggle:active{opacity:1}.bgm-toggle.hidden{opacity:.6;left:-22px}}