/* 全屏无缝图片样式 */
.main {
    display: flex;
    justify-content: center;
    padding: 0;
    margin-top: 55px;
    flex-direction: column;
    align-items: center;
    background-color: #f6f6f6;
}

.main img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
}

.svideo {
    width: 60%;
    height: auto;
    overflow: hidden;
}

.svideo video {
    width: 100%;
    height: auto;
}

/* 手机版样式 */
@media (max-width: 768px) {
    .main {
        margin-top: 48px;
    }
}