diff --git a/SinkDark/article/apps.py b/SinkDark/article/apps.py
index cb9626d..2bc48aa 100644
--- a/SinkDark/article/apps.py
+++ b/SinkDark/article/apps.py
@@ -4,7 +4,3 @@ from django.apps import AppConfig
 class ArticleConfig(AppConfig):
     default_auto_field = 'django.db.models.BigAutoField'
     name = 'article'
-
-    def ready(self):
-        from . import signals  # 导入signals模块以注册信号处理器
-
diff --git a/SinkDark/article/models.py b/SinkDark/article/models.py
index db8d511..b18762c 100644
--- a/SinkDark/article/models.py
+++ b/SinkDark/article/models.py
@@ -32,9 +32,9 @@ class ArticleInfo(models.Model):
     article_tag = models.ManyToManyField(ArticleTag, blank=True, verbose_name='文章标签')
 
     def save(self, *args, **kwargs):
-        # 可以在这里直接更新rendered字段，但使用信号更灵活
-        self.rendered = CrossDown.main(self.content)
-        super().save(*args, **kwargs)
+        # 可以在这里直接更新rendered字段
+        self.rendered = CrossDown.main(self.content)  # 渲染md
+        super().save(*args, **kwargs)  # 保存
 
     def __str__(self):
         return self.title
diff --git a/SinkDark/article/signals.py b/SinkDark/article/signals.py
index 409495f..e69de29 100644
--- a/SinkDark/article/signals.py
+++ b/SinkDark/article/signals.py
@@ -1,15 +0,0 @@
-from django.db.models.signals import post_save
-from django.dispatch import receiver
-from .models import ArticleInfo
-import CrossDown
-
-
-@receiver(post_save, sender=ArticleInfo)
-def article_signal_handler(sender, instance, created, **kwargs):
-    if created:
-        # 这里执行你希望在文章创建后自动执行的函数
-        # 例如：
-        print("文章已创建，执行特定函数...")
-    """if instance.content:
-        instance.rendered = instance.content
-        instance.save(update_fields=['rendered'])"""
diff --git a/SinkDark/publicStatic/css/base.css b/SinkDark/publicStatic/css/base.css
index ac5e153..a53649d 100644
--- a/SinkDark/publicStatic/css/base.css
+++ b/SinkDark/publicStatic/css/base.css
@@ -38,13 +38,14 @@ a:hover { text-decoration: none; color: #000; }
 }
 
 .r_box {
-  /* 中间主体内容样式，这里不需要特别指定宽度，因为Grid已经分配了空间 */
-}
-
-.rt_box {
   /* 右侧内容样式 */
 }
-main { overflow: hidden; width: 68%; float: right; display: block; }
+.main {
+  overflow: hidden;
+  width: 68%;
+  margin: 0 auto; /* 添加左右自动外边距以实现水平居中 */
+  display: block; /* 已经是默认值，但保持清晰 */
+}
 .container { width: 1000px; margin: auto }
 nav { width: 1000px; margin: auto }
 .logo { float: left; font-size: 22px }
diff --git a/SinkDark/publicStatic/css/index.css b/SinkDark/publicStatic/css/index.css
index e02cdd1..16f3856 100644
--- a/SinkDark/publicStatic/css/index.css
+++ b/SinkDark/publicStatic/css/index.css
@@ -12,18 +12,20 @@
 .tuijian li { text-overflow: ellipsis; white-space: nowrap; overflow: hidden; margin-bottom: 5px; background: url(../images/li.png) left center no-repeat; padding-left: 20px }
 .links a { display: block; float: left; margin: 0 10px 5px 0 }
 .guanzhu img { width: 100% }
+.tools a { display: block; float: left; margin: 0 10px 5px 0 }
 .l_box .search { border: 1px solid #000; background: #000; border-radius: 0 5px 5px 0; position: relative; }
 .search input.input_submit { border: 0; background: 0; color: #fff; outline: none; position: absolute; top: 10px; right: 8% }
 .search input.input_text { border: 0; line-height: 36px; height: 36px; width: 72%; padding-left: 10px; outline: none }
-.r_box li { background: rgba(255,255,255,0.8); padding: 15px; overflow: hidden; color: #797b7c; margin-bottom: 20px }
-.r_box li h3 { font-size: 16px; line-height: 25px; text-shadow: #FFF 1px 1px 1px }
-.r_box li h3 a { color: #222 }
-.r_box li h3 a:hover { color: #000; text-decoration: underline }
-.r_box li img { float: right; clear: right; width: 100%;height:100%; -webkit-transition: all 0.5s; -moz-transition: all 0.5s; transition: all 0.5s; }
-.r_box li i { width: 150px; display: block; max-height: 100px; overflow: hidden; float: right; margin-left: 20px }
-.r_box li p { margin: 20px 0 0 0; line-height: 22px; overflow: hidden; text-overflow: ellipsis; -webkit-box-orient: vertical; display: -webkit-box; -webkit-line-clamp: 2; }
-.r_box li:hover img { transform: scale(1.05) }
-.r_box li:hover h3 a { color: #19585d; }
+.rt_box .search { border: 1px solid #000; background: #000; border-radius: 0 5px 5px 0; position: relative; }
+.main li { background: rgba(255,255,255,0.8); padding: 15px; overflow: hidden; color: #797b7c; margin-bottom: 20px }
+.main li h3 { font-size: 16px; line-height: 25px; text-shadow: #FFF 1px 1px 1px }
+.main li h3 a { color: #222 }
+.main li h3 a:hover { color: #000; text-decoration: underline }
+.main li img { float: right; clear: right; width: 100%;height:100%; -webkit-transition: all 0.5s; -moz-transition: all 0.5s; transition: all 0.5s; }
+.main li i { width: 150px; display: block; max-height: 100px; overflow: hidden; float: right; margin-left: 20px }
+.main li p { margin: 20px 0 0 0; line-height: 22px; overflow: hidden; text-overflow: ellipsis; -webkit-box-orient: vertical; display: -webkit-box; -webkit-line-clamp: 2; }
+.main li:hover img { transform: scale(1.05) }
+.main li:hover h3 a { color: #19585d; }
 .pagelist { text-align: center; color: #666; width: 100%; clear: both; margin: 20px 0; padding-top: 20px }
 .pagelist a { color: #666; margin: 0 2px 5px 2px; display: inline-block; border: 1px solid #fff; padding: 5px 10px; background: #FFF }
 .pagelist a:hover { color: #19585d; }
diff --git a/SinkDark/publicStatic/css/m.css b/SinkDark/publicStatic/css/m.css
index 84b1195..e396680 100644
--- a/SinkDark/publicStatic/css/m.css
+++ b/SinkDark/publicStatic/css/m.css
@@ -1,4 +1,4 @@
-@charset "gb2312";
+@charset "UTF-8";
 @media screen and (min-width: 1024px) and (max-width: 1199px) {
 header { width: 96%; margin: auto }
 }
diff --git a/SinkDark/templates/base.html b/SinkDark/templates/base.html
index 53cb41b..7cfc454 100644
--- a/SinkDark/templates/base.html
+++ b/SinkDark/templates/base.html
@@ -71,10 +71,10 @@
         </ul>
       </div>
   </div>
-  <div class="m_box">
+  <div class="main">
       {% block content %}{% endblock %}
   </div>
-  <div class="r_box">
+  <div class="rt_box">
     <div class="tools">
         <h2>小工具</h2>
         <ul>