feat(首页): 未登录时隐藏功能菜单，只显示简单欢迎页面

core/templates/core/base.html

@@ -448,6 +448,7 @@
                             <i class="bi bi-speedometer2"></i><span>首页</span>
                         </a>
                     </li>
+                    {% if user.is_authenticated %}
                     <li class="nav-item">
                         <a class="nav-link {% if request.resolver_match.url_name == 'yesterday_records' or 'add_reading' in request.path or 'edit_reading' in request.path or 'add_insight' in request.path or 'edit_insight' in request.path %}active{% endif %}" href="{% url 'yesterday_records' %}">
                             <i class="bi bi-journal-text"></i><span>昨日记录</span>
@@ -483,6 +484,7 @@
                             <i class="bi bi-gear"></i><span>系统配置</span>
                         </a>
                     </li>
+                    {% endif %}
                 </ul>
                 <ul class="navbar-nav">
                     {% if user.is_authenticated %}
@@ -503,11 +505,13 @@
                         </a>
                     </li>
                     {% endif %}
+                    {% if user.is_authenticated %}
                     <li class="nav-item">
                         <a class="nav-link" href="/houtai/">
                             <i class="bi bi-shield-lock"></i><span>后台管理</span>
                         </a>
                     </li>
+                    {% endif %}
                 </ul>
             </div>
         </div>

core/templates/core/index.html

@@ -1,6 +1,7 @@
 {% extends 'core/base.html' %}
 
 {% block content %}
+{% if user.is_authenticated %}
 <!-- 欢迎区域 -->
 <div class="row mb-4">
     <div class="col-12">
@@ -372,4 +373,21 @@
         setCurrentYear();
     });
 </script>
+{% else %}
+<!-- 未登录欢迎区域 -->
+<div class="row">
+    <div class="col-12">
+        <div class="card" style="background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white;">
+            <div class="card-body text-center py-5">
+                <i class="bi bi-house-heart" style="font-size: 5rem; opacity: 0.8;"></i>
+                <h2 class="mt-4 mb-3">欢迎使用家庭日报系统</h2>
+                <p class="mb-4 opacity-90">请先登录以使用系统功能</p>
+                <a href="{% url 'login' %}" class="btn btn-light btn-lg px-5">
+                    <i class="bi bi-box-arrow-in-right me-2"></i>登录系统
+                </a>
+            </div>
+        </div>
+    </div>
+</div>
+{% endif %}
 {% endblock %}