*{
    padding: 0;
    margin: 0;
    font-family: "微软雅黑";
    box-sizing: border-box;
}
body, html {
    min-width: 1240px;
    margin: 0;
    font-size: 14px;
    background-color: #fff;
    -webkit-font-smoothing: antialiased;
}
table{
    border-collapse: collapse;
}
ul,li{
    list-style: none;
}
h1,h2,h3,h4,h5{
    font-weight: 500;
}
::-webkit-scrollbar {
    width: 4px;
    border-radius:2px;
    background-color: #eee;
}
::-webkit-scrollbar-thumb {
    border-radius:4px;
    background-color: #ccc;
}
.ai-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 999;
    color: #fff;
    background-color: #000;
    overflow: auto;
    font-weight: 700;
}
.ai-nav-bar {
    position: relative;
    width: 100%;
    height: 60px;
    line-height: 60px;
    padding: 0 30px;
    z-index: 1;
    min-width: 1200px;
    overflow: hidden;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.ai-nav-logo {
    float: left;
    width: 176px;
    height: 100%;
    line-height: normal;
}
.html {
    background: #f5f5f5;
}
.body{
    width: 1200px;
    margin: 0 auto;
    margin-top: 60px;
    background: #fff;
}
.sider {
    position: fixed;
    box-sizing: border-box;
    width: 240px;
    border-right: 1px solid #e6ecf1;
    z-index: 100;
    overflow-y: auto;
}
.secondary-nav {
    clear: both;
    height: calc(100vh);
    overflow-y: scroll;
}
.sider .submenu .submenu_title {
    line-height: 1em;
    padding: 10px 4px;
    padding-left: 40px;
    display: block;
    font-size: 14px;
}
.sider .menu-item a {
    display: block;
    padding: 10px 4px;
    padding-left: 40px;
    color: #333;
    text-decoration: none;
    font-size: 14px;
}
.sider .submenu .submenu_title:hover,.submenu_items li a:hover,.menu-item a:hover{
    background-color: #eee;
}
.sider .submenu .submenu_title{
    position: relative;
}
.level-1{
    padding-left: 20px;
}
.level-2{
    padding-left: 20px;
}
.sider .submenu {
    box-sizing: border-box;
    line-height: 1em;
    clear: both;
    cursor: pointer;
}
.submenu_items{
    display: none;
}
.submenu_title::before{
    content: "";
    width: 12px;
    height: 34px;
    background: url(../images/path-r.png) no-repeat;
    background-position: 0 center;
    background-size: 12px 12px;
    position: absolute;
    left: 25px;
    top: 0;
    line-height: 34px;
    display: block;
}
.path::before{
    content: "";
    width: 12px;
    height: 34px;
    background: url(../images/path.png) no-repeat;
    background-position: 0 center;
    background-size: 12px 12px;
    position: absolute;
    left: 25px;
    top: 0;
    line-height: 34px;
    display: block;
}
.rotate{
    transform: rotate(90deg);
}
.main {
    margin-left: 240px;
}
.post-wrapper {
    min-height: 600px;
    box-sizing: border-box;
    padding: 24px 30px 0;
    width: 860px;
}
.update{
    color: rgba(0,0,0,.4);
    font-size: 14px;
    margin: 14px 0;
}
.post-wrapper .post .post_title {
    font-size: 30px;
    line-height: 48px;
    margin: 4px 0 8px;
    font-family: PingFangSC-Medium;
}
.post_body {
    font-size: 14px;
    color: #333;
    font-family: PingFangSC-Regular;
    line-height: 26px;
}
.post-wrapper .post .post_description {
    overflow: hidden;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid #e9e9e9;
}
.post_body h2 {
    color: #333;
    font-size: 22px;
    line-height: 38px;
}
.post_body p,.post_body h3,.post_body h4{
    margin: 14px 0;
    word-wrap: break-word;
    color: #333;
}
.post_body h4{
    color: #000;
}
.post-li{
    padding-bottom: 40px;
}
.language-text{
    padding: 1em;
    margin: .5em 0;
    overflow: auto;
    background-color: #f5f2f0;
    line-height: 2.4em;
}
.post_body table{
    display: block;
    overflow: auto;
    word-break: normal;
    border: none;
    margin-bottom: 30px;
}
.post_body table tr {
    border: 1px solid #e9e9e9;
}
.post_body table td, .post__body table th {
    padding: 8px;
    border: 1px solid #e9e9e9;
}
.post_body table th {
    font-weight: 700;
    background: #fbfbfb;
    color: #333;
    padding: 8px;
    border: 1px solid #ebebeb;
}
.post_content ul {
    list-style: disc outside;
    padding-left: 18px;
    margin: 5px 0;
}
.post_content li {
    list-style: disc outside;
    line-height: 26px;
    margin: 14px 0;
}
:not(pre)>code[class*=language-], pre[class*=language-] {
    background: #f5f2f0;
}
pre[class*=language-] {
    padding: 1em;
    margin: .5em 0;
    overflow: auto;
}
code[class*=language-], pre[class*=language-] {
    color: #000;
    background: none;
    text-shadow: 0 1px #fff;
    font-size: 1em;
    text-align: left;
    white-space: pre;
    word-spacing: normal;
    word-break: normal;
    word-wrap: normal;
    line-height: 1.5;
    -moz-tab-size: 4;
    -o-tab-size: 4;
    tab-size: 4;
}
.statement p{
    font-weight: 600;
}
.sider .menu-item .clicked{
    color: #108cee;
}


.header{
	background: #333;
	height: 60px;
    width: 100%;
    position: fixed;
    top: 0;
    z-index: 9;
    line-height: 60px;
}
.container{
    width: 1200px;
    margin: 0 auto;
    overflow: hidden;
    padding: 0 15px;
    box-sizing: border-box;
}
.logo{
	float:left;
}
.logo a{
	color: #FFF;
    font-weight: 700;
    text-decoration: none;
}
.logo a:hover{
	text-decoration:none;
}
.logo a p{
	margin: 0;
}
/*--了解更多--*/
.more{
	float: right;
}
.more a{
	color: #557ce9;
    font-size: 1em;
    text-decoration: none;
    display: block;
}
.more a:hover{
	color: #ffc449;
}
.more a p{
	margin: 0;
}
.logo p {
    font-size: 1.4em;
    color: #fff;
}
.logo p span {
    color: #557ce9;
}

@media (max-width: 1200px){
    .container {
        width: 1170px;
    }
}
@media (max-width: 992px){
    .container {
        width: 970px;
    }
}
@media (max-width: 768px){
    .container {
        width: 750px;
    }
}