.video-container{position: relative;width: 100%;max-width: 100%;height: 100%}.video-player{width: 100%;display: block;height: 100%;object-fit: cover}.video-poster{position: absolute;top: 0;left: 0;width: 100%;height: 100%;background-size: cover;background-position: center;cursor: pointer;display: flex;justify-content: center;align-items: center;transition: opacity 0.3s}.video-poster::before{display: none;z-index: 1;position: absolute;width: 100%;height: 100%;content: '';left: 0;top: 0;background-color: rgba(0, 0, 0, 0.3)}.video-poster .play-button:hover{transform: scale(1.15);cursor: pointer}.play-button{width: 29px;height: 29px;background: url(../image/play.png);background-size: 100% 100%;transition: transform 0.3s;z-index: 2}.box4 .left .play-button{width: 95px;height: 95px}.hide{opacity: 0;pointer-events: none}