.title{
    height: 54px;
    width: 100%;
    background: #11647B;
    color: #fff;
    font-size: 18px;
    line-height: 54px;
    padding-left: 20px;
    font-weight: bold;
}

.ifr_left{
    float: left;
    width: 220px;
    margin-left: 15px;
    margin-top: 15px;
    margin-bottom: 15px;
}
.ifr_right{
    margin-left: 235px;
}

.bq{
    margin-top: 15px;
    margin-left: 20px;
    background: #11647B;
    color: #fff;
    width: 100px;
    height: 25px;
    line-height: 25px;
    text-align: center;
    border-radius: 30px;
}
.bq_content{
	margin-top: 10px;
	margin-left: 30px;
	margin-right: 15px;
}
.down_button{
    margin: -50px 15px 15px 0px;
    float: right;
    background: #11647B;
    width: 150px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    border-radius: 5px;
    color: #fff;
}

/* video */
.video_title{
    height: 54px;
    width: 100%;
    background: #11647B;
    color: #fff;
    font-size: 18px;
    line-height: 54px;
    padding-left: 20px;
    font-weight: bold;
    
    position: relative;
}
.video_download{
    width: 120px;
    height: 40px;
    background: #fff;
    border-radius: 5px;
    text-align: center;
    line-height: 40px;
    
    position: absolute;
    top: 8px;
    right: 140px;
}
.video_back{
    width: 120px;
    height: 40px;
    background: #fff;
    border-radius: 5px;
    text-align: center;
    line-height: 40px;
    
    position: absolute;
    top: 8px;
    right: 10px;
}
.intro{
    font-size: 18px;
    line-height: 40px;
    font-weight: bold;
    /* text-align: center; */
    border: 1px solid #11647B;
    color: #11647B;
    margin: 10px;
    padding-left: 10px;
    padding-right: 10px;
    text-indent:2em
}
.video a{
	text-decoration: none;
    color: #000;
}