style(news-detail): 优化文字切换按钮的样式

public/themes/dist_static/static/css/news-detail.css

@@ -190,6 +190,7 @@
   display: flex;
   align-items: center;
   justify-content: center;
+  min-width: 0;
   height: 3.5rem;
   overflow: hidden;
   border-radius: 1rem;
@@ -223,6 +224,12 @@
 .nd-pager__label {
   position: relative;
   z-index: 1;
+  display: block;
+  max-width: 100%;
+  padding: 0 1rem;
+  overflow: hidden;
+  white-space: nowrap;
+  text-overflow: ellipsis;
 }
 
 @media (max-width: 1439px) {

public/themes/website/1/zh/demo/news-detail.html

@@ -175,20 +175,20 @@
               {/php}
               {if condition="empty($preId)"}
               <a class="nd-pager__item nd-pager__item--prev" href="javascript:;">
-                <span class="nd-pager__label">上一篇：没有了</span>
+                <span class="nd-pager__label" title="没有了">上一篇：没有了</span>
               </a>
               {else /}
               <a class="nd-pager__item nd-pager__item--prev" href="{:hcUrl('Detail/index',['id'=>$preId,'cid'=>$preCid])}">
-                <span class="nd-pager__label">上一篇：{$preTitle}</span>
+                <span class="nd-pager__label" title="{$preTitle}">上一篇：{$preTitle}</span>
               </a>
               {/if}
               {if condition="empty($nextId)"}
               <a class="nd-pager__item nd-pager__item--next" href="javascript:;">
-                <span class="nd-pager__label">下一篇：没有了</span>
+                <span class="nd-pager__label" title="没有了">下一篇：没有了</span>
               </a>
               {else /}
               <a class="nd-pager__item nd-pager__item--next" href="{:hcUrl('Detail/index',['id'=>$nextId,'cid'=>$nextCid])}">
-                <span class="nd-pager__label">下一篇：{$nextTitle}</span>
+                <span class="nd-pager__label" title="{$nextTitle}">下一篇：{$nextTitle}</span>
               </a>
               {/if}
             </nav>