.head {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 20px;
    color: rgb(89, 85, 85);
}

.head .head-title {
    font-size: 18px;
}

.head .head-title-img {
    width: 58px;
    object-fit: contain;
    margin-left: 80px;
}
.head .head-banner-box{
    position: relative;
    width: 100%;
    height: 248px;
    color: #fff;
    margin-top: 20px;
}
.head .head-banner-box .text-content{
    position: absolute;
    left: 20px;
    top: 72px;
    width: 90%;
    height: 142px;
    display: flex;
    justify-content:space-between;
    flex-direction: column;
}
.text-content > div:first-child {
    text-align: left;
    margin-right: auto;
}

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

.text-content .content-text1 {
    font-size: 23px;
    font-weight: 400;
    text-align: left;
}

.text-content .content-text2 {
    font-size: 18px;
    font-weight: 300;
    margin-top: 10px;
    margin-left: 20px;
}

.head .head-banner-box .banner-background {
    width: 100%;
    height: 248px;
}

.introduce {
    padding: 15px 8px;
    color: rgb(113, 112, 113);
    font-size: 14px;
    line-height: 33px;
    text-align: center;
}
.introduce h1 {
    color: rgb(89, 85, 85);
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 20px;
}

.introduce h2 {
    color: rgb(113, 112, 113);
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 20px;
}
.introduce h2 span{
    color: rgb(56, 129, 184)
}
.introduce h3 {
    color: rgb(113, 112, 113);
    font-size: 18px;
    font-weight: 500;
}

.introduce p {
    font-size: 18px;
    line-height: 33px;
    color: rgb(113, 112, 113);
}

.introduce span {
    font-weight: 600;
}
.introduce .introduce-img-box {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 10px;
    width: 100%;
}
.introduce .introduce-certificate{
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
    height:800px;
    margin: 0 auto;
    margin-bottom: 30px;
}
.introduce .introduce-subtitle{
    font-size: 22px;
    font-weight: bold;
}
.introduce .introduce-img1 {
    width: 100%;
}

.introduce .introduce-img2 {
    width: 100%;
    margin-top: 20px;
}

.introduce .introduce-img3 {
    width: 100%;
    height: 100%;
    object-fit: cover;
    grid-row: 1 / 3; 
}

.introduce .introduce-img4 {
   width: 100%;
   height: 100%;
   object-fit: cover;
   grid-column: 2;
   grid-row: 1; 
}

.introduce .introduce-img5 {
    width: 100%;
    grid-column: 2;
    grid-row: 2; 
}

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

.introduce .introduce-img7 {
    width: 90%;
}