.game-music-control{position:fixed;left:18px;bottom:76px;z-index:90;color:#68340d;font:800 14px Nunito,sans-serif}.game-music-control summary{cursor:pointer;list-style:none;display:flex;gap:7px;align-items:center;background:#fff6d8;border:1px solid #e7b350;padding:10px 14px;border-radius:20px;box-shadow:0 3px 10px #44240924;user-select:none}.game-music-control summary::-webkit-details-marker{display:none}.game-music-control summary:focus-visible,.game-music-control button:focus-visible{outline:3px solid #ed8c0d;outline-offset:3px}.game-music-popover{position:absolute;left:0;bottom:49px;width:220px;max-width:calc(100vw - 36px);box-sizing:border-box;padding:16px;background:#fffcf3;border:1px solid #e7b350;border-radius:16px;box-shadow:0 6px 24px #51270025}.game-music-popover label{display:block}.game-music-popover output{float:right}.game-music-popover input{display:block;width:100%;margin:14px 0;accent-color:#f47708}.game-music-popover button{font:inherit;cursor:pointer;color:#68340d;background:#ffdb55;border:0;border-radius:10px;padding:10px;width:100%}.game-music-popover small{display:block;margin-top:8px;font-weight:600;line-height:1.4}@media(max-width:650px){.game-music-control{left:12px;bottom:max(100px,env(safe-area-inset-bottom))}} 

.student-world .game-music-control{left:auto;right:18px;bottom:80px}.student-world .game-music-popover{left:auto;right:0}

@media(max-width:760px){.student-world:has(#shop:not([hidden])) .game-music-control{bottom:calc(40dvh + 74px)}}