* {
    margin: 0;
}

*::-webkit-scrollbar {
    display: none !important;
    /* 隐藏滚动条，但依旧具备可以滚动的功能 */
}

body {
    background-color: #fff;
    color: #333;
    font-size: 12px;
}

section {
    margin: 20px;
}

.normal>h2 {
    font-size: 20px;
    line-height: 3;
    text-align: center;
}

.normal>h3 {
    text-align: center;
    font-size: 16px;
    line-height: 2;
    margin-top: 20px;
}

.normal>h4 {
    text-align: left;
    font-size: 14px;
    line-height: 2;
    margin-top: 20px;
}

.normal>p {
    font-size: 12px;
    text-indent: 2em;
    line-height: 1.5;
}

.normal_sdk>p {
    font-size: 12px;
    /* text-indent: 2em; */
    line-height: 2;
}

.normal>.tips {
    margin-top: 1rem;
    margin-bottom: 5rem;

}

.normal>.tips>p>span {
    width: 45%;
    text-align: left;
}

.normal>.tips>p {
    display: flex;
    justify-content: space-around;
    margin-bottom: 10px;
}

.markdown>h1 {
    font-size: 20px;
    line-height: 3;
    text-align: center;
}

.markdown>h2 {
    font-size: 18px;
    line-height: 3;
}

.markdown>p {
    font-size: 12px;
    line-height: 1.5;
    margin-top: 12px;
}

.markdown .underline {
    text-decoration: underline;
}

.withhold>p {
    text-indent: 2em;
}

table {
    border-collapse: collapse;
    width: 90%;
    margin: 0 auto 20px;
    empty-cells: show;
}

table,
tr,
th,
td {
    border: 1px solid #333;
}

td {
    font-size: 12px;
    line-height: 1.5;
}

.col {
    border-bottom: 1px solid;
    padding: 0px 15px 1px 15px;
}