body{background-color: #64040b;margin: 0px;}
.mainbody{
    width: 100%;
}
.bg{background: url("//activity.hdslb.com/blackboard/old_activity/activity3728/bg.jpg");}
.top_main{
    width: 100%;
    height: 460px;
}
.top{
    position: relative;
    width: 100%;
    margin: 0 auto;
}
.top_bg{
    position: absolute;
    width: 100%;
    height: 460px;
    left: 0;
    background: url("//activity.hdslb.com/blackboard/old_activity/activity3728/banner.png") center 0 no-repeat;
}
.two_three{
    position: absolute;
    width: 100%;
    height: 800px;
    left: 0;
    background: url("//activity.hdslb.com/blackboard/old_activity/activity3728/2233.png") center center no-repeat;
}
.solid_top{
    width: 100%;
    height: 6px;
    background:linear-gradient(#5a040a,#64040b) ;
}
.solid_bottom{
    width: 100%;
    height: 6px;
    background:linear-gradient(#64040b,#5a040a) ;
}
.main_info{
    position: relative;
    width: 980px;
    height: 1112px;
    margin: 0 auto;
    background: url("//activity.hdslb.com/blackboard/old_activity/activity3728/01.png") no-repeat;
    margin-top: 40px;
}
.middle_main{
    position: relative;
    width: 100%;
    height: 1180px;
}
.rule{
    position: relative;
    width: 980px;
    height: 1112px;
    background: url("//activity.hdslb.com/blackboard/old_activity/activity3728/02.png") no-repeat 0px 8px;
    margin: 0 auto;
}
.text_body{
    position: absolute;
    width: 890px;
    height: 910px;
    left: 50px;
    top: 160px;
    font-family: "microsoft yahei";
}
.text_title{
    width: 140px;
    height:40px;
    border-radius: 20px;
    background-color: #0091ff;
    font-size: 24px;
    color: #fff;
    text-align: center;
    line-height: 38px;
    margin-left:5px ;
    margin-bottom: 14px;
    margin-top: 10px;
}
.text_body .text{
    color: #333;
    font-size: 14px;
    margin-left: 28px;
    margin-bottom: 40px;
    line-height: 30px;
}
.text_body .ex{
    font-size: 16px;
}
.vedio_main{
    position: relative;
    width: 980px;
    height: 1170px;
    margin: 0 auto;
    background: url("//activity.hdslb.com/blackboard/old_activity/activity3728/03_bg.png") no-repeat 600px 545px;
}
.prize_main{
    position: relative;
    width: 100%;
    height: auto;
}
.prize_block{
    position: relative;
    width: 980px;
    height: 590px;
    margin: 0 auto;
    margin-bottom: 20px;
}
.vedio_title{
    background: url("//activity.hdslb.com/blackboard/old_activity/activity3728/03.png") no-repeat;
    width: 298px;
    height: 52px;
    position: absolute;
    top: 40px;
    left: 45px;
}
.prize_title{
    position: absolute;
    width: 298px;
    height: 52px;
    background: url("//activity.hdslb.com/blackboard/old_activity/activity3728/04.png") no-repeat;
    top: 40px;
    left: 45px;
}
.prize_box{
    position: absolute;
    width: 980px;
    height: 312px;
    top: 150px;
    border: solid 1px #fff;
    background: url("//activity.hdslb.com/blackboard/old_activity/activity3728/coming_soon.png") no-repeat 390px 130px;
    border-radius: 2px;
}
.p_pic{
    position: absolute;
    width: 980px;
    height: 549px;
    background: url("//activity.hdslb.com/blackboard/old_activity/activity3728/04_bg.png") no-repeat;
    top: 40px;
}
.common_pic{
    position: absolute;
    width: 100%;
    height: 40px;
    background: url("//activity.hdslb.com/blackboard/old_activity/activity3728/comment.png")  center center no-repeat;
    top: -26px;
    left: 0;
}
.common {
    width: 980px;
    margin: 0 auto;
    padding-bottom: 100px;
}
.common_block{
    position: relative;
    height: auto;
    border: solid 1px #561109;
    margin: 0 auto;
}
.arc-tool-bar.topic{
}
.common_solid{
    position: relative;
    height: auto;
    border: solid 4px #d9a914;
    max-width: 1222px;
    margin: 0 auto;
    background-color: #fafafa;
}