#loading-animation {
    content: " ";
    position: fixed;
    inset: 0;
    
    background-color: #fff; /* 固定白色背景，不参与动画 */
    z-index: 999999999999999;
    pointer-events: none;
}

/* 用伪元素单独承载图片并添加动画，避免背景受影响 */
#loading-animation::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 200px; /* 图片宽度 */
    height: 200px; /* 图片高度 */
    background-image: url(https://wyjmew.cn/awa.gif);
    background-repeat: no-repeat;
    background-size: contain; /* 适应容器尺寸 */
    background-position: center;
    transform: translate(-50%, -50%); /* 居中定位 */
    animation: float 3s infinite ease-in-out; /* 悬浮动画 */
}

/* 定义悬浮摇摆动画 */
@keyframes float {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    25% {
        transform: translate(-50%, -52%) rotate(1deg); /* 轻微上移+右偏 */
    }
    50% {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    75% {
        transform: translate(-50%, -48%) rotate(-1deg); /* 轻微下移+左偏 */
    }
    100% {
        transform: translate(-50%, -50%) rotate(0deg);
    }
}