/* 1. 去除 .bg-cover:before (暗色遮罩) */
.bg-cover::before {
    background-image: none !important;
    background-color: transparent !important;
}

/* 2. 去除 .bg-cover:after (彩虹变色动画) */
.bg-cover::after {
    background-image: none !important;
    background-color: transparent !important;
    animation: none !important; /* 关掉 rainbow 动画 */
}

/* 隐藏图片下方自动生成的文字标题 */
.caption, 
.img-caption, 
figcaption {
    display: none !important;
}