.content_box{
    padding-top: 100px;
    padding-bottom: 100px;
}
.problem_title_box{
    margin-bottom: 20px;
}
.problem_title_box p{
    padding-left: 30px;
    color: #004577;
    font-size: 32px;
    font-family: SourceHanSansCN;
    font-weight:bold;
}
.line-title img{
    width: 100%;
}
.problem_title_box span{
    border-left: 7px solid #004577;
    float: left;
    height: 32px;
    width: 10px;
    margin-top: 15px;
}
.problem_line{
    width: 86%;
    padding-left: 30px;
}
.problem_line_title{
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
    font-family: SourceHanSansCN;
}
.problem_line_content{
    font-size: 16px;
    font-family: SourceHanSansCN;
    margin-bottom: 20px;
    line-height: 28px;
    padding-left: 14px;
}