body {
    margin: 0;
    padding: 0;
    background-color: #F2F2F2;
}

.head {
    height: 2.75rem;
    width: 100%;
    position: fixed;
    top: 0%;
    box-sizing: border-box;
    z-index: 999;
    font-family: PingFang SC, PingFang SC;
    background-color: #fff;
    display: flex;
    padding: .625rem;
    border-bottom: .0625rem solid #eee;
    align-items: center;
}
.head img{
    width: 1.375rem;
    height: 1.375rem;
}
.head .title {
    text-align: center;
    max-width: 20.625rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin: 0rem auto;
}

.content {
    background-color: #fff;
    padding: .625rem .75rem;
    box-sizing: border-box;
}

.content .title {
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    font-size: 1.25rem;
    color: #000000;
    text-align: center;
}

.content .subtitle {
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    font-size: .875rem;
    color: #7B7E89;
    line-height: 1rem;
    text-align: center;
    margin: 1.875rem;
}

/* .mat-20 {
    margin-left: 1.25rem;
} */

p {
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    font-size: .875rem;
    color: #000000;
    line-height: 1.625rem;
}

.content .titles {
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    font-size: .875rem;
    color: #000000;
    margin-top: 1.25rem;
    line-height: 1.625rem;
    font-weight: bold;

}

span {
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    font-size: .875rem;
    color: #000000;
    line-height: 1.625rem;
}

.em2 {
    text-indent: 2em;
}