feat: Markdown 正文自动 TOC（锚点+折叠目录）+ 社交账号扩充国内平台（B站/小红书/抖音/视频号/公众号/其他）+ 侧边栏社交展示 + JSON-LD sameAs 全平台聚合 + 首页 h1（SEO 语义）

themes/sablog/assets/style.css

@@ -134,3 +134,13 @@ a:hover { color: #f60; text-decoration: underline; }
     .post-full .post-title { font-size: 22px; }
     .archive-posts { margin-left: 10px; }
 }
+
+/* TOC */
+.toc { background: #f7f9fb; border: 1px solid #d8dfe6; padding: 10px 14px; margin: 0 0 14px; font-size: 13px; }
+.toc summary { cursor: pointer; font-weight: bold; margin-bottom: 4px; }
+.toc-list { list-style: none; }
+.toc-list li { padding: 2px 0; }
+.toc-level-3 { padding-left: 14px; }
+.toc-level-4, .toc-level-5, .toc-level-6 { padding-left: 28px; }
+
+.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

themes/sablog/views/index.blade.php

@@ -3,6 +3,7 @@
 @include('partials.header')
 <div id="page">
 <main id="content">
+        <h1 class="sr-only">{{ $siteName }}</h1>
     @if(session('success'))
         <div class="alert alert-success">{{ session('success') }}</div>
     @endif

themes/sablog/views/partials/sidebar.blade.php

@@ -62,6 +62,19 @@
         </ul>
     </section>
 
+    <section class="widget">
+        <h3>社交账号</h3>
+        <ul class="social-links">
+            @foreach($socialLinks as $social)
+                @if($social['url'])
+                    <li><a href="{{ $social['url'] }}" target="_blank" rel="noopener nofollow">{{ $social['platform'] }}</a></li>
+                @else
+                    <li>{{ $social['platform'] }}：{{ $social['value'] }}</li>
+                @endif
+            @endforeach
+        </ul>
+    </section>
+
     <section class="widget">
         <h3>统计</h3>
         <ul>

themes/sablog/views/show.blade.php

@@ -16,6 +16,20 @@
     @endif
 
     <article class="post-full">
+            @if(! empty($toc))
+                <nav class="toc" aria-label="文章目录">
+                    <details open>
+                        <summary>目录</summary>
+                        <ol class="toc-list">
+                            @foreach($toc as $item)
+                                <li class="toc-level-{{ $item['level'] }}">
+                                    <a href="#{{ $item['id'] }}">{{ $item['text'] }}</a>
+                                </li>
+                            @endforeach
+                        </ol>
+                    </details>
+                </nav>
+            @endif
         @if($cover = $post->getFirstMedia('cover'))
             <div class="post-cover"><img src="{{ $cover->getUrl('card') ?: $cover->getUrl() }}" alt="{{ $post->title }}"></div>
         @endif