/* ============================================================
 * video-poster.css — 视频封面共享样式（Feed / ReviewDetail 共用）
 * 用法：给视频缩略图容器加 class="vp-shimmer"，海报就绪后自动切为 vp-ready
 * ============================================================ */
.vp-shimmer {
    background: linear-gradient(90deg, #e0e0e0 25%, #eeeeee 50%, #e0e0e0 75%) !important;
    background-size: 200% 100% !important;
    animation: vp-shimmer 1.8s ease-in-out infinite;
}
@keyframes vp-shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}
.vp-shimmer .vp-poster {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    z-index: 1;
}
.vp-shimmer.vp-ready {
    background: #e8e8e8 !important;
    animation: none;
}