.cooperation_content .header {
    background-color: #5e53dd;
    padding: 140px 0 120px 0;
}

.cooperation_content .header .title {
    font-size: 56px;
    color: #fff;
    font-weight: bold;
    text-align: center;
}

.cooperation_content .header .text {
    font-size: 22px;
    color: #fff;
    text-align: center;
    max-width: 730px;
    margin: 20px auto 0;
}

.cooperation_content .content_box {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto ;
}
.content_item{
    margin-bottom: 64px;
    padding-top: 64px;
}
.content_item .label {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 32px;
}

.content_item .text {
    font-size: 20px;

}

.explain_list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-gap: 40px;
    margin-top: 48px;
}

.explain_item {
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    height: 200px;
    padding: 24px;
    box-sizing: border-box;
}

.explain_item .img {
    width: 56px;
}

.explain_item .label {
    font-size: 20px;
    font-weight: bold;
    margin: 14px 0 8px;
}

.explain_item .text {
    font-size: 16px;
    color: #4b5563;
}
.reference_list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-gap: 40px;
    margin-top: 48px;
}

.reference_item {
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    height: 146px;
    padding: 24px;
    box-sizing: border-box;
}
.reference_item .top_box{
    display: flex;
    align-items: center;
    margin-bottom: 16px;
}
.reference_item .img {
    width: 40px;
    height: 40px;
}

.reference_item .label {
    font-size: 20px;
    font-weight: bold;
    margin: 0 0 0 10px;
}

.reference_item .text {
    font-size: 16px;
    color: #4b5563;
}
@media (max-width: 768px) { 
    .cooperation_content .header{
        padding: 140px 20px 120px 20px;
    }
    .cooperation_content .header .title{
        font-size: 34px;
    }
    .cooperation_content .header .text{
        font-size: 18px;
    }
    .content_box{
        padding: 0 20px;
        box-sizing: border-box;
    }
    .content_item{
        margin-bottom: 46px;
        padding-top: 46px;
    }
    .content_item .label{
        font-size: 30px;
    }
    .content_item .text{
        font-size: 18px;

    }
    .reference_list{
        grid-template-columns: repeat(1, 1fr);
    }
    .reference_item .label{
        font-size: 20px;
    }
    .content_item .text{
        font-size: 16px;
    }
    .explain_list{
        grid-template-columns: repeat(1, 1fr);
    }
    .explain_item .label{
        font-size: 20px;
    }
}