body {
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
#errorPrinter {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 640px;
    height: 100px;
    transform: translate(-50%, -50%);
    text-align: center;
    text-shadow: 1px 1px 3px #000;
    font-size: 20px;
    color: #fff;
    z-index: 9;
}
#errorName {
    color: #ff0;
    font-weight: bold;
    -moz-user-select: text;
    -webkit-user-select: text;
    -ms-user-select: text;
    user-select: text;
}
#errorMessage {
    color: #fff;
    -moz-user-select: text;
    -webkit-user-select: text;
    -ms-user-select: text;
    user-select: text;
}
#retryButton {
    font-size: 20px;
    color: #fff;
    background-color: #000;
    border-radius: 8px;
    margin: 20px;
    padding: 10px;
}
#fpsCounterBox {
    position: absolute;
    left: 5px;
    top: 5px;
    width: 90px;
    height: 40px;
    background: #222;
    opacity: 0.8;
    z-index: 8;
}
#fpsCounterLabel {
    position: absolute;
    top: 0px;
    left: 0px;
    padding: 5px 10px;
    height: 30px;
    line-height: 32px;
    font-size: 12px;
    font-family: rmmz-numberfont, sans-serif;
    color: #fff;
    text-align: left;
}
#fpsCounterNumber {
    position: absolute;
    top: 0px;
    right: 0px;
    padding: 5px 10px;
    height: 30px;
    line-height: 30px;
    font-size: 24px;
    font-family: rmmz-numberfont, monospace;
    color: #fff;
    text-align: right;
}
#loadingSpinner {
    margin: auto;
    position: absolute;
    top: 0px;
    left: 0px;
    right: 0px;
    bottom: 0px;
    width: 120px;
    height: 120px;
    z-index: 10;
}
#loadingSpinnerImage {
    margin: 0px;
    padding: 0px;
    border-radius: 50%;
    width: 96px;
    height: 96px;
    border: 12px solid rgba(255, 255, 255, 0.25);
    border-top: 12px solid rgba(255, 255, 255, 1);
    animation: fadein 2s ease, spin 1.5s linear infinite;
}
@keyframes fadein {
    0% {
        opacity: 0;
    }
    20% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}


.floating-button-container {
    position: absolute;
    z-index: 999999;       /* 確保浮在遊戲畫面(Canvas)之上 */
    right: 20px;        /* 整個群組距離右邊 20px */
    bottom: 20px;          /* 整個群組距離上面 20px */
    display: flex;      /* ★ 使用 Flexbox 橫向排版 */
    gap: 15px;          /* ★ 兩個按鈕中間的間距，可自行調整數值 */
}

.my-floating-button {
    width: 40px;
    height: 40px;
    cursor: pointer;    /* 滑鼠移過去變手指 */
    display: block;     /* ★ 確保圖片不會有奇怪的空白間隙 */
    /* ★ 手機防護牆：防止長按出現「儲存圖片」或圈選反白 */
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    -webkit-user-drag: none;
    transition: transform 0.2s, filter 0.3s, opacity 0.3s; /* 加入濾鏡動畫 */
}

/* ★ 當按鈕被加上 .is-disabled 時的樣子 */
.my-floating-button.is-disabled {
    /*/filter: grayscale(100%); */
    opacity: 0.6;            /* 變半透明 */
    cursor: not-allowed;     /* 滑鼠游標變成禁止符號 */
    pointer-events: none;    /* ★ 關鍵：讓它在 CSS 層面就徹底無法點擊 */
}

/* 滑鼠移上去時的放大效果 */
.my-floating-button:hover {
    transform: scale(1.1);
}

.my-floating-button:active {
    transform: scale(0.95);
}