.head {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 10px;
    color: rgb(89, 85, 85);
}

 .head .head-title {
     font-size: 50px;
 }

 .head .head-title-img {
     width: 245px;
     object-fit: contain;
     margin-left: 340px;
 }

 .head .head-banner-box {
     position: relative;
     width: 100%;
     height: 575px;
     color: #fff;
     margin-top: 20px;
 }

 .head .head-banner-box .text-content {
     position: absolute;
     left: 166px;
     top: 180px;
     width: 80%;
     height: 332px;
     display: flex;
     justify-content: space-between;
     flex-direction: column;
 }

.text-content > div:first-child {
    text-align: right;
    margin-right: auto;
}

.text-content > div:last-child {
    margin-left: auto;
}

.text-content .content-text1 {
    font-size: 68px;
    font-weight: 400;
    text-align: left;
}

.text-content .content-text2 {
    font-size: 42px;
    font-weight: 300;
    margin-top: 10px;
}

.head .head-banner-box .banner-background {
    width: 100%;
    height: 575px;
}

.introduce {
    display: flex;
    justify-content: space-between;
    padding: 80px 178px;
    padding-bottom: 0;
}

    .introduce h1 {
        color: rgb(89, 85, 85);
        font-size: 48px;
        width: 400px;
        font-weight: 500;
        margin-right: 98px;
    }

    .introduce h2 {
        color: rgb(113, 112, 113);
        font-size: 50px;
        font-weight: 500;
        margin-bottom: 20px;
    }
    .introduce h2 span{
        color: rgb(56, 129, 184)
    }
    .introduce h3 {
        color: rgb(113, 112, 113);
        font-size: 40px;
        font-weight: 500;
    }

    .introduce p {
        font-size: 18px;
        color: rgb(113, 112, 113);
    }

    .introduce span {
        font-weight: 600;
    }
    .introduce .introduce-img-box {
        width: 732px;
        float: left;
        margin-right:20px;
    }
    .introduce .introduce-certificate{
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 1100px;
        margin: 0 auto;
        margin-bottom: 80px;
    }
    .introduce .introduce-subtitle{
        font-size: 28px;
        font-weight: bold;
    }
    .introduce .introduce-img1 {
        width: 734px;
        height: 304px;
    }

    .introduce .introduce-img2 {
        width: 734px;
        height: 378px;
        margin-top: 20px;
    }

    .introduce .introduce-img3 {
        width: 358px;
        height: 276px;
        float: left;
    }

    .introduce .introduce-img4 {
        width: 358px;
        height: 306px;
        margin-top: 12px;
        float: left;
    }

    .introduce .introduce-img5 {
        width: 360px;
        height: 452px;
        float: right;
    }

    .introduce .introduce-img6 {
        width: 225px;
        height: 318px;
    }

    .introduce .introduce-img7 {
        width: 444px;
        height: 312px;
    }