/* Ảnh bìa thật và biểu tượng phát riêng ở cả hai dải ảnh nhỏ. */
.anh-nho-video,.anh-nho-xem-lon-video{position:relative;isolation:isolate}
.anh-nho-video::after,.anh-nho-xem-lon-video::after{content:"▶";position:absolute;left:50%;top:50%;z-index:2;transform:translate(-50%,-50%);display:grid;place-items:center;box-sizing:border-box;width:28px;height:28px;padding-left:2px;border:2px solid #fff;border-radius:50%;background:#0a68ffed;color:#fff;font-size:12px;line-height:1;box-shadow:0 2px 6px #0004;pointer-events:none}
.trang-video .phat-video,.noi-dung-hop-anh .phat-video{border-radius:12px;background:#ffffffec;box-shadow:0 3px 18px #0002}
.trang-video .phat-video,.noi-dung-hop-anh .phat-video,.loi-video{z-index:3}
[data-video-frame]{position:relative}
[data-video-frame]>.khung-hinh-video{position:absolute;inset:0;display:block;width:100%;height:100%;object-fit:contain;border-radius:inherit;pointer-events:none}
.anh-nho-video>.khung-hinh-video,.anh-nho-xem-lon-video>.khung-hinh-video{inset:3px;width:calc(100% - 6px);height:calc(100% - 6px)}
.co-khung-hinh>img{visibility:hidden}
.bia-khung-hinh-video{position:absolute;inset:0;background:#fff;pointer-events:none;overflow:hidden;border-radius:inherit}
.bia-khung-hinh-video>img{display:block;width:100%;height:100%;object-fit:contain}
.bia-khung-hinh-video[hidden]{display:none!important}
.video-doc-khung-hinh{position:fixed;left:-10px;top:-10px;width:1px;height:1px;opacity:0;pointer-events:none}
.video-player-preview{position:relative;min-width:0;align-self:start;border-radius:10px;overflow:hidden;grid-row:1/4}
.video-frame-preview{position:relative;width:160px;height:160px;max-width:100%;border-radius:10px;overflow:hidden;margin-bottom:12px;background:#f3f6fa}
.video-frame-preview>img{width:100%;height:100%;object-fit:contain}
.video-frame-preview[hidden]{display:none!important}
.phat-khung-hinh-admin{position:absolute;z-index:3;left:50%;top:50%;transform:translate(-50%,-50%);padding:12px 16px;min-height:44px;border:1px solid #fff;border-radius:10px;background:#0968ef;color:#fff;font:inherit;cursor:pointer;white-space:nowrap}
.phat-khung-hinh-admin[hidden]{display:none!important}