版块导航如何设置成展开状态？

在要展开的版块处加上am-in类即可，例如：

<dd class="am-accordion-bd am-collapse am-in">
<div class="am-accordion-content"><span class="body-cbk-btn">
<a class="cbk-title" href="index.php?c=list&amp;sortid=26&amp;page=1">PHP学习相关文章</a>
<span class="am-badge am-badge-success am-align-right am-radius bk-span" title="在该板块发布文章" onclick="location.href='index.php?c=edit&amp;type=read&amp;sortid=26'">发帖</span>
</span><span class="body-cbk-btn">
<a class="cbk-title" href="index.php?c=list&amp;sortid=27&amp;page=1">ASP学习相关文章</a>
<span class="am-badge am-badge-success am-align-right am-radius bk-span" title="在该板块发布文章" onclick="location.href='index.php?c=edit&amp;type=read&amp;sortid=27'">发帖</span>
</span><span class="body-cbk-btn">
<a class="cbk-title" href="index.php?c=list&amp;sortid=28&amp;page=1">前端UI学习设计文章</a>
<span class="am-badge am-badge-success am-align-right am-radius bk-span" title="在该板块发布文章" onclick="location.href='index.php?c=edit&amp;type=read&amp;sortid=28'">发帖</span>
</span><span class="body-cbk-btn">
<a class="cbk-title" href="index.php?c=list&amp;sortid=29&amp;page=1">数据库学习相关文章</a>
<span class="am-badge am-badge-success am-align-right am-radius bk-span" title="在该板块发布文章" onclick="location.href='index.php?c=edit&amp;type=read&amp;sortid=29'">发帖</span>
</span><span class="body-cbk-btn">
<a class="cbk-title" href="index.php?c=list&amp;sortid=30&amp;page=1">其他技术文章</a>
<span class="am-badge am-badge-success am-align-right am-radius bk-span" title="在该板块发布文章" onclick="location.href='index.php?c=edit&amp;type=read&amp;sortid=30'">发帖</span>
</span>
</div>
</dd>