/* lite-youtube-embed (774ch カスタム) */
lite-youtube {
    position: relative;
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: #000;
    overflow: hidden;
    cursor: pointer;
    contain: content;
}

lite-youtube > img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border: 0;
}

lite-youtube > .ltyt-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 68px;
    height: 48px;
    padding: 0;
    margin: 0;
    background: transparent;
    border: 0;
    cursor: pointer;
    z-index: 2;
    transition: transform 0.15s;
}

lite-youtube > .ltyt-play-btn svg {
    width: 100%;
    height: 100%;
    pointer-events: none;
}

lite-youtube:hover > .ltyt-play-btn {
    transform: translate(-50%, -50%) scale(1.1);
}

lite-youtube:hover > .ltyt-play-btn svg path:first-child {
    fill: #f00;
    fill-opacity: 1;
}

lite-youtube > iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

lite-youtube.ltyt-activated {
    cursor: default;
}

lite-youtube.ltyt-activated > .ltyt-play-btn,
lite-youtube.ltyt-activated > img {
    display: none;
}

/* 小サイズ (サイドバー / トレンドウィジェット) */
lite-youtube.ltyt-sm > .ltyt-play-btn {
    width: 44px;
    height: 32px;
}