.introduction {
    width: 92%;
    margin: 0 auto;
    padding-bottom: 40px;
    border-bottom: 1px solid #9e9e9e;
    display: flex;
    flex-wrap: wrap;
    padding-top: 20px;
}

.introduction:last-child {
    border: none;
}

.bigcontent {
    width: 100%;
    background-color: #ffffff;
    box-shadow: 1px 1px 1px #d3d3d3;
    margin-bottom: 100px;
}

.intro_left {
    width: 256px;
    height: 215px;
    display: flex;
    justify-content: center;
    border-right: 1px solid #a8e3d4;
    margin-top: 55px;
}

.intro_left img {
    width: 185px;
    height: 215px;
}

.intro_right {
    margin-left: 35px;
    margin-top: 20px;
}

.person {
    font-size: 16.67px;
    color: #181818;
    font-weight: bold;
    line-height: 25px;
}

.persondec {
    color: #7b7979;
    font-size: 16.67px;
    line-height: 18px;
}

@media screen and (max-width: 768px){
    .intro_left{border-right: 0;width: 100%;margin-top: 15px;}
    .intro_right{margin-left: 0;}
    .bigcontent{margin-bottom: 0;}
    .persondec{font-size: 14px!important;line-height: 1.5!important;}
}