.item_header{
    width: 100%;
}
.item_range{
    position: relative;
    width: 73.6%;
    margin: 150px auto 0 auto;
    min-width: 1200px;
    display: flex;
    justify-content: left;
    flex-wrap: wrap;
}
.item_crumbs{
    margin-bottom: 50px;
}
.item_crumbs>span{
    display: inline-block;
    margin: 0 5px;
    font-family: 'Montserrat';
    font-weight: 400;
    color: #000;
    font-size: 13px;
    cursor: pointer;
}
.item_crumbs>span:last-of-type{
    cursor: default;
}
.item_crumbs>span:first-of-type{
    margin-left: 0px;
}
.item_img{
    text-align: center;
    width: 100%;
}
.item_img>img{
    width: 300px;
    height: 300px;
}
.item_imgname{
    font-family: 'Montserrat';
    font-weight: 700;
    color: #000;
    font-size: 18px;
    margin: 15px 0 0 0;
}
.item_videocon{
    width: 100%;
    margin-bottom: 120px;
}
.item_videotitle{
    font-family: 'Montserrat';
    font-weight: 800;
    color: #000;
    font-size: 18px;
    height: 50px;
    line-height: 50px;
    padding-left: 25px;
    background-color: #f7f7f7;
    margin-top: 90px;
    margin-bottom: 35px;
}
.item_videolist{
    display: flex;
    justify-content: left;
}
.item_video{
    width: 25%;
    min-height: 100%;
    padding: 0 1.6%;
    position: relative;
}
.item_videoimg{
    margin: auto;
    min-width: 250px;
    width: 100%;
    min-height: 200px;
    cursor: pointer;
    background: #c6c6c6;
    display: inline-block;
}
.item_videoname{
    font-family: 'Montserrat';
    cursor: pointer;
    font-weight: 700;
    color: #000;
    font-size: 14px;
    overflow:hidden;
    text-overflow:ellipsis;
    display:-webkit-box;
    -webkit-box-orient:vertical;
    -webkit-line-clamp:1; 
    margin-top: 20px;
}
.item_faqcon>ul>li>.h_title{
    font-family: 'Montserrat';
    font-weight: 700;
    color: #000;
    font-size: 14px;
    line-height: 2;
}
.item_faqcon>ul>li>p{
    font-family: 'Montserrat';
    font-weight: 400;
    color: #000;
    font-size: 14px;
    line-height: 1.75;
}
.item_faqcon>ul>li{
    margin-bottom: 20px;
    font-family: 'Montserrat';
    font-weight: 700;
    color: #000;
    font-size: 14px;
    line-height: 2;
    list-style: decimal;
    margin-left: 40px;
}
.item_manualsname{
    padding-left: 20px;
    font-family: 'Montserrat';
    font-weight: 700;
    color: #000;
    font-size: 18px;
    margin-bottom: 20px;
}
.item_manualsname>a{
    color: #000;
}
.item_manualsname>a>img{
    cursor: pointer;
    width: 20px;
    height: 20px;
    vertical-align: bottom;
    display: inline-block;
    margin-left: 5px;
}

.item_videobtn{
    width: 75px;
    height: 75px;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -55px;
    margin-left: -37.5px;
    cursor: pointer;
}
.videoclose{
    position: absolute;
    top: 0px;
    right: -40px;
    cursor: pointer;
}