.ysxy {
    overflow: hidden;
    padding: 32px;
}
.ysxy h1 {
    margin-bottom: 12px;
    font-size: 32px;
    text-align: center;
}
.ysxy h2 {
    margin-bottom: 16px;
    font-size: 24px;
}
.ysxy h3 {
    margin-bottom: 16px;
    font-size: 24px;
}
.ysxy p {
    margin-bottom: 8px;
    font-size: 18px;
    line-height: 26px;
    text-indent: 12px;
}
.ysxy ul {
    padding-left: 12px;
}
.ysxy ul li {
    margin-bottom: 10px;
    font-size: 18px;
}
.history{
    padding: 4rem 1rem;
    text-indent: 2rem;
}
.history li {
    font-size: 1rem;
    line-height: 2rem;
}