*{
    padding: 0px;
    margin: 0px;
}
.contract_box{
    width: 100vw;
    height: calc(100vh - 70px);
    background: #fff;
    padding-top: 70px;
    overflow-x: hidden;
}
.title_h{
    position: fixed;
    top: 0px;
    left: 0px;
    text-align: center;
    width: 100%;
    line-height: 40px;
    padding:20px 0px 10px 0px;
    letter-spacing: 2px;
    background: #fff;
}
.title_h img{
    height: 40px;
    position: absolute;
    left: 10px;
}
.con_box{
    padding: 20px;
}
.con_box h4{
    padding: 10px 0px;
    letter-spacing: 1px;
    line-height: 1.7;
}
.con_box div{
    padding-left: 10px;
    /* text-indent: 2em; */
    line-height: 1.7;
    margin-top: 6px;
    letter-spacing: 1px
}
.con_box img{
    width: 100%;
    margin: 10px 0px;
}

.color_bule{
    color: #1881e9;
}
.quan::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: #1881e9;
    margin: 0 5px;
    vertical-align: middle;
    margin-bottom: 4px;
}