.banner_title {
    font-size: 42px;
    font-weight: normal;
    font-stretch: normal;
    letter-spacing: 0px;
    color: #333333;
    text-align: center;
}

.banner_column {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.banner_bg {
    background-color: #fbfbfb;
}

.banner_i {
    width: 50px;
    height: 2px;
    background: #e7290f;
    display: block;
    margin: 40px 0;
}


.intro {
    background-image: url(../../images/2024_new/whitepaper/bg.png);
    background-repeat: no-repeat;
    background-size: cover;
    padding: 40px 0 40px 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.intro_m {
    width: 1300px;
    display: flex;
    align-items: center;
    justify-content: start;
}

.intro_t {
    font-weight: 500;
    color: #333333;
    font-size: 40px;
}

.intro_child_t {
    margin-top: 20px;
    color: #333333;
    font-size: 30px;
    letter-spacing: 1px;
}

.intro_child_exp {
    width: 650px;
    margin-top: 40px;
    color: #333333;
    font-size: 14px;
    letter-spacing: 1px;
    text-align: justify;
    line-height: 22px;
}

.intro img {
    width: 448px;
    margin-left: 110px;
}
.banner_title span {
    font-size: 32px;
}

.content_title {
    width: 1200px;
    font-weight: 700;
    color: #666666;
    font-size: 16px;
    text-align: center;
    line-height: 24px;
}

.content_main {
    margin-top: 40px;
    width: 1200px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.content_exp {
    width: 617px;
    color: #666666;
    font-size: 16px;
    line-height: 24px;
}
.content_img{
    width: 490px;
}
.content_width{
    width:1336px;
    margin: 0 auto;
}

.evaluationmodel {
    padding: 80px 0 100px 0;
}

.classificationrequire{
    padding: 40px 0;
    background:#f5f5f5;
}
.placementtest{
    padding: 100px 0;
}
.cm{
    padding: 40px 0;
    background:#F2F2F2;
}
.cm_title{
    width:1200px;
    line-height:24px;
    color:#666666;
    font-size:16px;
    text-align:center; 
}
.cm img{
    width:100%;
    margin-top: 48px;
}
.km{
    padding: 100px 0; 
}
.content_source_exp{
    color:#666666;
    font-size:16px;
    text-align:center;  
}
.edrms{
    padding: 40px 0;
    background:#f5f5f5; 
}
.ecm{
    padding: 100px 0 80px 0; 
}