body{
    background: #F3F3F3;
}
.middle{
    width: 70%;
    margin: 0 auto;
    min-height: 500px;
    background: #fff;
    padding: 10px;
}
.md_top{
    height: 35px;
    line-height: 35px;
    border-bottom: 1px solid #dcdcdc;
    font-size: 12px;
    color: #999;
}
.xw_bt{
    border-bottom: 1px solid #ccc;
}
.xw_bt h1{
    text-align: center;
    font-size: 24px;
    font-weight: bold;
    color: #2c4684;
    height: 60px;
    line-height: 60px;
}
.xw_bt p{
    text-align: center;
    color: #666;
}

.xw_nr{
    margin-top: 15px;
    padding: 20px;
    color: #666;
}
.xw_nr img{
    width: 100%;
}

.toudi{
    width: 200px;
    height: 50px;
    display: block;
    line-height: 50px;
    text-align: center;
    background: #2c4684;
    font-size: 18px;
    color: #fff;
    margin: 30px auto;
    cursor: pointer;
    opacity: 1;
    display: none;
}
.toudi:hover{
    opacity: 0.9;
}