style: 统一四入口导航当前态与首页入口命名

templates/base.html

@@ -92,6 +92,11 @@
       color: var(--muted);
       font-size: 0.92rem;
     }
+    .topnav a.active {
+      background: var(--primary-soft);
+      color: var(--primary);
+      border: 1px solid #d8e5ff;
+    }
     .topnav a:hover {
       background: var(--surface-soft);
       color: var(--text);
@@ -363,10 +368,10 @@
         </div>
       </div>
       <nav class="topnav">
-        <a href="{% url 'chat:index' %}">审核智能体</a>
-        <a href="{% url 'documents:list' %}">资料包</a>
-        <a href="{% url 'platform_ui:knowledge-base' %}">知识库</a>
-        <a href="{% url 'audit:list' %}">处理历史</a>
+        <a href="{% url 'chat:index' %}"{% if request.resolver_match.namespace == 'chat' %} class="active"{% endif %}>审核智能体</a>
+        <a href="{% url 'documents:list' %}"{% if request.resolver_match.namespace == 'documents' %} class="active"{% endif %}>资料包</a>
+        <a href="{% url 'platform_ui:knowledge-base' %}"{% if request.resolver_match.namespace == 'platform_ui' %} class="active"{% endif %}>知识库</a>
+        <a href="{% url 'audit:list' %}"{% if request.resolver_match.namespace == 'audit' %} class="active"{% endif %}>处理历史</a>
       </nav>
     </div>
   </header>

templates/scenarios/index.html

@@ -35,7 +35,7 @@
 
   <section class="grid-2">
     <a class="link-card" href="{% url 'platform_ui:knowledge-base' %}">
-      <h3>知识库配置</h3>
+      <h3>知识库</h3>
       <p>查看规则树、知识源和切片策略。</p>
     </a>
     <a class="link-card" href="{% url 'documents:list' %}">