.footer_box {
    width: 1200px;
    height: 300px;
    border: #0f0 solid 0px;
    color: #ccc;
}

.footer_box .width_1920 {
    /*float: left;*/
    /*margin-top:-100px; */
    margin-left: -360px;
    width: 1920px;
    height: 300px;
    border: #0f0 solid 0px;
    background: #333;
}

.footer_box .width_1200 {
    width: 1200px;
    height: 300px;
    margin-left: 360px;
    border: #0ff solid 0px;

}

.footer_box .contact_us_box {
    float: left;
    width: 280px;
    height: 230px;
    border-right: #666 dashed 1px;
}

.footer_box .contact_us_box .title {
    /*text-align: center;*/
    font-weight: bold;
    line-height: 50px;
    height: 50px;
    font-size: 18px;
}

.footer_box .contact_us_box li {
    line-height: 30px;
    font-size: 12px;
    cursor: pointer;
}

.footer_box .video_box {
    float: left;
    width: 250px;
    height: 230px;
    /*border: #0f0 solid 1px;*/
    border-right: #666 dashed 1px;

}

.footer_box .video_box .title {
    /*text-align: center;*/
    font-weight: bold;
    line-height: 50px;
    height: 50px;
    font-size: 18px;
}

.footer_box .video_box li {
    line-height: 30px;
    font-size: 12px;

}

.footer_box .product_box {
    float: left;
    width: 320px;
    height: 230px;
    /*border: #0f0 solid 1px;*/
    border-right: #666 dashed 0px;

}

.footer_box .product_box .title {
    /*text-align: center;*/
    font-weight: bold;
    line-height: 50px;
    height: 50px;
    font-size: 18px;
}

.footer_box .video_box li {
    line-height: 30px;
    font-size: 12px;

}

.footer_box .support_platforms_box {
    float: left;
    width: 250px;
    height: 230px;
    /*border: #0f0 solid 1px;*/
    border-right: #666 dashed 1px;

}

.footer_box .support_platforms_box .title {
    /*text-align: center;*/
    font-weight: bold;
    line-height: 50px;
    height: 50px;
    font-size: 18px;
}

.footer_box .support_platforms_box li {
    line-height: 30px;
    font-size: 12px;

}

.footer_box li a {
    line-height: 30px;
    font-size: 12px;
    color: #ccc;
}

.copyright {
    float: left;
    width: 1200px;
    height: 70px;
    border: #0f0 solid 0px;
    color: #999;
    line-height: 70px;
    font-size: 12px;
    text-align: center;
}