.main-container{
    width:100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-bottom: 4rem;
}
.main-nav{
    width: 100%;
    margin-bottom: 2rem;
}
.main-box{
    width: 1180px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    padding: 3rem 1rem;
    z-index: 2;
    background-color: #fff;
}
.biaoti{
    color: #5d5c5c;
    font-weight: 100;
}
.main-box h4{
     margin-top: 1.5rem;
}
.main-box h6{
    color: #5d5c5c;
    margin-top: 0.5rem;
    margin-bottom: 1.5rem;
}
.content{
    width: 80%;
    font-size: 0.95rem;
    color: #7f7f7f;
}
.content p{
    text-indent: 2rem;
    line-height: 1.5rem;
}
.content-background{
    margin-top: 1.6rem;
}