#app {
    overflow: hidden;
    width: 100%;
    font-family: 微软雅黑;
}

.about {
    /*margin: 160px 20% 0 20%;*/
    width: 960px;
    margin: 0 auto;
    margin-top: 180px;

}

.about h2 {
    font-size: 30px;
    color: #333333;
    font-family: 宋体;
}

.about p {
    margin: 40px 0;
    font-size: 16px;
    color: #333333;
    font-family: 微软雅黑;
    line-height: 25px;
    text-indent: 2em;
}

.about a {
    color: #333333;
    text-decoration: none;
    font-size: 16px;
}

.video {
    width: 100%;
    margin-top: 10px;
    margin-bottom: 100px;
    height: 500px;
    position: relative;
}

.video .play {
    display: block;
    margin: auto;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10;
    cursor: pointer;
}

.video .black {
    background: #000000;
    opacity: 0.4;
    width: 100%;
    height: 100%;
    z-index: 9;
    cursor: pointer;
}

.video .plays {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 8;
    cursor: pointer;
}

@media only screen and (max-width: 768px) {
    .about {
        /*margin: 160px 20% 0 20%;*/
        width: 100%;
        padding: 0 0.6rem;
        margin-top: 3.2rem;

    }

    .about h2 {
        font-size: 0.5rem;
        color: #335560;
        font-family: 宋体;
    }

    .about p {
        margin: 0.4rem 0;
        font-size: 0.36rem;
        color: #585d6f;
        font-family: 微软雅黑;
        /*line-height: 0.2rem;*/
        line-height: initial;
    }

    .about a {
        color: #333333;
        text-decoration: none;
        font-size: 0.36rem;
    }

    .video {
        width: 100%;
        margin-top: 0.1rem;
        margin-bottom: 1rem;
        height: 5rem;
        position: relative;
    }

    .video a {
        position: absolute;
        width: 100%;
        height: 100%;
        display: block;
        top: 0;
        left: 0;
        z-index: 10000;
    }

    .video .play {
        display: block;
        margin: auto;
        position: absolute;
        /*width: 1rem;*/
        /*height: 1rem;*/
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 10;
        cursor: pointer;
    }

    .video .black {
        background: #000000;
        opacity: 0.4;
        width: 100%;
        height: 100%;
        z-index: 9;
        cursor: pointer;
    }

    .video .plays {
        width: 100%;
        height: 100%;
        position: absolute;
        top: 0;
        left: 0;
        z-index: 8;
        cursor: pointer;
    }

    /*视频*/
}

@media only screen and (max-width: 375px) {
    .iframe {
        display: block;
    }

    .embed {
        display: none;
    }
}

@media only screen and (min-width: 375px) {
    .iframe {
        display: none;
    }

    .embed {
        display: block;
    }
}