body {
    padding: 0;
    margin: 0;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    box-sizing: border-box;
}

.main-video {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 4;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.friend-info {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 5;
    width: 100%;
    height: 100%;
    background: transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.friend-info .friend-name {
    margin-top: 8px;
    color: white;
    font-size: 12px;
}

.friend-info .friend-tips {
    margin-top: 120px;
    color: white;
}

.local-video {
    position: fixed;
    top: 20px;
    right: 25px;
    z-index: 6;
    width: 100px;
    height: 230px;
}

.video-menus {
    display: flex;
    justify-content: space-between;
    position: fixed;
    bottom: 25px;
    left: 0;
    width: 100%;
    z-index: 9;
}

.video-menus > div {
    display: flex;
    flex: 1;
    align-items: center;
    justify-content: center;
}

.menu-1 {
    width: 40px;
    height: 40px;
    z-index: 9;
    margin-left: 20px
}

.menu-2 {
    width: 40px;
    height: 40px;
    z-index: 9;
}

.menu-close {
    width: 60px;
    height: 60px;
}

.menu-3 {
    width: 34px;
    height: 34px;
    z-index: 9;
}

.menu-3 {
    width: 34px;
    height: 34px;
    z-index: 9;
}

.menu-4 {
    width: 40px;
    height: 40px;
    z-index: 9;
    margin-right: 20px;
}