.bg{
    height: 100vh;
    width: 100vw;
    background-image: url(./image/bg.jpg);
    background-repeat: round;
    position: absolute;
    top: 0;
    left: 0;
    overflow-y: auto;
    text-align: center;
    padding-top: 2vh;
    padding-bottom: 5vh;
}

.img-item{
    width: 90vw;
    border-radius: 10px;
    /*border: 1px solid red;*/
    display: inline-flex;
}

/* 视频 */
.video-container {
    width: 90vw;
    margin: 0 auto;
    position: relative;
    padding-bottom: 56.25%; /* 16:9比例 */
}

video {
    width: 90vw;
    height: 35vh;
    object-fit: cover;
}

/* 隐藏滚动条 */
.universal-hide-scroll::-webkit-scrollbar {
    display: none;
}