/* 设置主要内容页面为浏览器宽度的60% 背景颜色为白色 居中与页面中*/
#top
{
    height: 68px;
    border-bottom-style:solid ;
    border-color: #006300;
    border-width: 2px;
    background-color: #ffffff;
}
/* 设置顶部栏为68像素高 底部边框为实线 颜色为006300 宽度为2像素*/
#logo
{
    float: left;
    margin-top: 10px;
    margin-left: 10px;
}
/* 设置logo为左浮动 顶部与左边距为10像素*/
#daohang
{
    float: right;
    height: 60px;
}
/* 设置导航栏为左浮动 高度为60像素*/
#daohang-ul
{
   float: right;
   list-style: none;
}
/* 设置导航表单为右浮动 列表样式为none 左边距为10像素*/
.daohang
{
    display: inline;
    float: left;
    list-style: none;
    margin-left: 10px;
    padding-right: 10px;
    border-right: solid 1px #999999;
}
/* 设置导航内容为左浮动 列表样式为none 左右边距为10像素*/
.daohang-last
{
    display: inline;
    float: left;
    list-style: none;
    margin-left: 10px;
    margin-right: 60px;
}
/* 设置最后一个导航内容的右边距为10像素*/
#bottom
{
    height: 100px;
    background-color: #E6E6E6;
    display: flex;
    justify-content: center;
    align-items: center;
}
#bottom-ul
{
   float: left;
   list-style: none;
   font-size: 12px;
   height: 15px;
}
/* 设置底部栏为左浮动 列表样式为none 左边距为10像素 字体大小为12像素 居中*/
.bottom-li
{
    display: inline;
    float: left;
    list-style: none;
    margin-left: 10px;
    padding-right: 10px;
    border-right: solid 1px #999999;
}
/* 设置底部栏内容为左浮动 列表样式为none 左右边距为10像素 右边框为实线*/
.bottom-li-last
{
    display: inline;
    float: left;
    list-style: none;
    margin-left: 10px;
}
/* 设置最后一个底部栏内容的右边距为10像素*/
#beian
{
    color: black;
    text-decoration: none;

}
/* 设置版权链接为黑色 无下划线*/
#beian:hover
{
    color:#29ABE2;
    text-decoration:none;
}
/* 设置版权链接鼠标悬停颜色为29ABE2*/
#neirong
{
    width: 750px;
    height: auto;
    margin:0 auto;
}
/* 设置内容页面宽度为750像素 顶部边距为10像素 居中*/
#neirong-top
{
    margin-top: 5px;;
    border-bottom: #00B500 dashed 1px;
}
/* 设置内容页面顶部居中*/
#neirong-center
{
    margin-top: 10px;
    margin-bottom: 10px;
    justify-content: center;
    align-items: center;
}
#neirong-center-top
{

    width: 200px;
    margin:0 auto;
    margin-top: 30px;
    margin-bottom: 35px;
}
/* 设置内容页面顶部居中*/
#neirong-center-center
{
    text-align: center;
}
#neirong-center-center-sanlian
{
    height: 200px;
    margin-bottom: 35px;
}
.neirong-center-center-sanlian-o
{
    float: left;
    width: 245px;
    height: 140px;
}
.neirong-center-center-sanlian-c
{
    float: left;
    width: 245px;
    height: 140px;
    margin-left: 5px;
    margin-right: 5px;
}
.neirong-center-center-sanlian-span
{
     border: black solid 1px; 
     width: 245px;
     margin-top: 5px;
}

        /* Markdown内容样式 */
        .markdown-content {
            line-height: 1.7;
            color: #333;
            padding: 30px;
            background: white;
            border-radius: 8px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.08);
            margin-top: 20px;
            min-height: 500px;
        }
        
        .markdown-content h1, 
        .markdown-content h2, 
        .markdown-content h3 {
            color: #1a2a6c;
            margin: 25px 0 15px 0;
            border-bottom: 1px solid #eee;
            padding-bottom: 10px;
        }
        
        .markdown-content h1 {
            font-size: 2rem;
            color: #39B54A;
            border-bottom: 2px solid #39B54A;
        }
        
        .markdown-content h2 {
            font-size: 1.6rem;
            color: #2c3e50;
        }
        
        .markdown-content p {
            margin: 15px 0;
            line-height: 1.8;
            font-size: 1.05rem;
        }
        
        .markdown-content pre {
            background: #2d2d2d;
            border-radius: 8px;
            padding: 15px;
            overflow-x: auto;
            margin: 20px 0;
        }
        
        .markdown-content code {
            font-family: 'Fira Code', monospace;
            font-size: 0.95rem;
        }
        
        .markdown-content blockquote {
            border-left: 4px solid #39B54A;
            background: #f9fff9;
            padding: 15px 20px;
            margin: 20px 0;
            border-radius: 0 6px 6px 0;
            font-style: italic;
        }
        
        .markdown-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 25px 0;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        }
        
        .markdown-content th, 
        .markdown-content td {
            border: 1px solid #e1e4e8;
            padding: 12px 15px;
            text-align: left;
        }
        
        .markdown-content th {
            background: #f5f9ff;
            font-weight: 600;
            color: #1a2a6c;
        }
        
        .markdown-content tr:nth-child(even) {
            background: #f9fbfd;
        }
        
        .markdown-content img {
            max-width: 100%;
            border-radius: 8px;
            margin: 15px 0;
            box-shadow: 0 3px 10px rgba(0,0,0,0.1);
        }
        
        .loading {
            text-align: center;
            padding: 50px;
            color: #7f8c8d;
            font-size: 1.1rem;
        }
        
        .error {
            color: #e74c3c;
            padding: 20px;
            background: #fff5f5;
            border-radius: 8px;
            text-align: center;
            margin: 20px 0;
        }
        
        .file-selector {
            background: white;
            border-radius: 8px;
            padding: 20px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.08);
            margin-bottom: 20px;
        }
        
        .file-selector h3 {
            color: #1a2a6c;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #f0f0f0;
            font-size: 1.4rem;
        }
        
        .file-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .file-item {
            padding: 12px 15px;
            border-radius: 8px;
            margin-bottom: 10px;
            cursor: pointer;
            transition: all 0.3s ease;
            background: #f8f9fa;
            border-left: 4px solid transparent;
            font-size: 1.05rem;
        }
        
        .file-item:hover {
            background: #e9ecef;
            transform: translateX(5px);
        }
        
        .file-item.active {
            background: #e3f2fd;
            border-left: 4px solid #29ABE2;
            font-weight: bold;
            color: #1a2a6c;
        }
        
        .banner {
            border-radius: 8px;
            padding: 25px;
            text-align: center;
            margin-bottom: 25px;
            color: rgb(46, 46, 46);
            box-shadow: 0 5px 15px rgba(0,0,0,0.15);
        }
        
        .banner p {
            font-size: 1.1rem;
            max-width: 800px;
            margin: 0 auto;
            line-height: 1.7;
            opacity: 0.9;
        }