ul, p, h1, h2,  h3 {
    margin: 0;
    padding: 0;
}
h1, h2,  h3 {
    margin-bottom: 16px;
    font-weight: 600;
    line-height: 1.25;
    margin-top: 1.5em;
}
h1 {
    font-size: 32px;
}
h2 {
    font-size: 24px;
}
h3 {
    font-size: 18px;
}
h3.round:before {
    content: '';
    display: inline-block;
    width: 5px;
    height: 5px;
    background-color: #333;
    border-radius: 50%;
    vertical-align: middle;
    margin-right: .4em;
}
html, body {
    font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "PingFangSC-Light", "PingFang SC Light", "黑体", sans-serif !important;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    margin: 0;
}
body {
    color: #212529;
    text-align: left;
    background-color: #fff;
    padding: 0 3%;
}
p, ul {
    font-size: 16px;
    margin-bottom: 1em;
    margin-top: 0;
    color: #24292e;
}

.main-content ul  {
    padding-left: .9em;
}
ul li {
    margin-bottom: 1em;
    box-sizing: border-box;
}
p a {
    text-decoration: none;
    color: #e7352c;
}
p a:hover {
    text-decoration: underline;
}
.wrap {
    width: 100%;
    font-size: 0;
}
.main-content {
    display: inline-block;
    vertical-align: top;
    padding: 0 3%;
    width: 70%;
    box-sizing: border-box;
}
.slider {
    position: sticky;
    top: 90px;
    padding-left: 3%;
    display: inline-block;
    vertical-align: top;
    width: 30%;
    box-sizing: border-box;
}
.slider ul {
    list-style: none;
    border-left: 1px solid #e0e0e0;
    padding: 10px 0 2px 15px;
    font-size: 12px;
    color: #717171;
}
.slider ul a {
    text-decoration: none;
    color: #717171;
}
.slider ul li {
    padding-bottom: 6px;
    margin-bottom: 0;
}
.slider ul li.active a {
    font-weight: bold;
    color: #e7352c;
}
.d_flex {
    display: flex;
}
.d_flex .number {
    margin-right: 6px;
}
.sub-info {
    padding-left: 40px;
    box-sizing: border-box;
}
@media (max-width: 768px) {
    .main-content {
        width: 100%;
        padding: 0;
    }
    .slider {
        display: none;
    }
}