diff --git a/README.md b/README.md
index bced053..1b84fbd 100644
--- a/README.md
+++ b/README.md
@@ -43,4 +43,9 @@ $wgLatinizeUrlConfig['fallback'] = 'inner';
 https://static-www.isekai.cn:8082/api/toolkit/asciiurl/hanzi2pinyin
 http://static-www.isekai.cn:8081/api/toolkit/asciiurl/hanzi2pinyin
 ```
-不保证稳定性，建议自建daemon
\ No newline at end of file
+不保证稳定性，建议自建daemon
+
+### 使用首字母排列分类中的标题
+```php
+$wgCategoryCollation = 'latinize';
+```
\ No newline at end of file
diff --git a/extension.json b/extension.json
index c8f7744..441424b 100644
--- a/extension.json
+++ b/extension.json
@@ -18,6 +18,7 @@
     "LatinizeUrl\\Hooks": "includes/Hooks.php",
     "LatinizeUrl\\Hanzi2Pinyin": "includes/Hanzi2Pinyin.php",
     "LatinizeUrl\\Utils": "includes/Utils.php",
+    "LatinizeUrl\\LatinizeCollation": "includes/LatinizeCollation.php",
     "LatinizeUrl\\Patcher": "includes/Patcher.php",
     "LatinizeUrl\\SpecialCustomUrl": "specials/SpecialCustomUrl.php"
   },
@@ -25,6 +26,9 @@
     "LoadExtensionSchemaUpdates": [
       "LatinizeUrl\\Hooks::onLoadExtensionSchemaUpdates"
     ],
+    "Collation::factory": [
+      "LatinizeUrl\\Hooks::onCollationFactory"
+    ],
     "SkinTemplateOutputPageBeforeExec": [
       "LatinizeUrl\\Hooks::onSkinTemplateOutputPageBeforeExec"
     ],
diff --git a/i18n/zh-hans.json b/i18n/zh-hans.json
index fd49662..eb951b6 100644
--- a/i18n/zh-hans.json
+++ b/i18n/zh-hans.json
@@ -1,8 +1,9 @@
 {
-    "latinizeurl_desc": "把url中的汉字转换成拼音",
+    "latinizeurl_desc": "把url中的汉字转换成拼音。",
     "latinizeurl-customurl": "自定义URL",
     "customurl-legend": "自定义URL",
     "customurl-url-field-label": "你想要设置的URL：",
-    "customurl-url-field-help": "建议使用纯英语字符，留空时会自动根据标题里的汉字生成对应的拼音URL",
-    "customurl-set-success": "页面的URL已经设置为[[$1|$2]]"
+    "customurl-url-field-help": "建议使用纯英语字符，留空时会自动根据标题里的汉字生成对应的拼音URL。",
+    "customurl-set-success": "页面的URL已经设置为[[$1|$2]]",
+    "customurl-set-failed": "页面URL不可用。"
 }
\ No newline at end of file
diff --git a/includes/Hooks.php b/includes/Hooks.php
index ae180d2..b04bf5f 100644
--- a/includes/Hooks.php
+++ b/includes/Hooks.php
@@ -38,21 +38,23 @@ class Hooks {
     public static function onInitializeParseTitle(Title &$title, $request){
         global $wgLatinizeUrlForceRedirect;
 
-        $realTitle = Utils::getTitleBySlugUrl($title);
-        if($realTitle){
-            $title = $realTitle;
-            $request->setVal('title', $title->getDBkey());
-        } elseif($wgLatinizeUrlForceRedirect
-            && !($request->getVal('action') && $request->getVal('action') != 'view')
-            && in_array($title->getNamespace(), self::$allowedNS)) { //把原标题页面重定向到拼音页面
-            $slug = Utils::getSlugUrlByTitle($title);
-            if($slug) $title = Title::newFromText($slug, $title->getNamespace());
+        if(in_array($title->getNamespace(), self::$allowedNS)){
+            $realTitle = Utils::getTitleBySlugUrl($title);
+            if($realTitle){
+                $title = $realTitle;
+                $request->setVal('title', $title->getDBkey());
+            } elseif($wgLatinizeUrlForceRedirect
+                && !($request->getVal('action') && $request->getVal('action') != 'view')
+                && in_array($title->getNamespace(), self::$allowedNS)) { //把原标题页面重定向到拼音页面
+                $slug = Utils::getSlugUrlByTitle($title);
+                if($slug) $title = Title::newFromText($slug, $title->getNamespace());
+            }
         }
     }
 
     public static function onGetArticleUrl(\Title &$title, &$url, $query){
         try {
-            if(Utils::titleSlugExists($title)){
+            if(in_array($title->getNamespace(), self::$allowedNS) && Utils::titleSlugExists($title)){
                 $slug = Utils::encodeUriComponent(Utils::getSlugUrlByTitle($title));
                 $titleEncoded = Utils::encodeUriComponent($title->getText());
                 $url = str_replace($titleEncoded, $slug, $url);
@@ -127,4 +129,11 @@ class Hooks {
             $out->addModules('ext.latinizeurl.timeless');
         }
     }
+
+    public static function onCollationFactory($collationName, &$collationObject){
+        if($collationName == 'latinize'){
+            $collationObject = new LatinizeCollation();
+        }
+        return true;
+    }
 }
\ No newline at end of file
diff --git a/includes/LatinizeCollation.php b/includes/LatinizeCollation.php
new file mode 100644
index 0000000..eb812ce
--- /dev/null
+++ b/includes/LatinizeCollation.php
@@ -0,0 +1,25 @@
+<?php
+namespace LatinizeUrl;
+
+use Collation;
+
+class LatinizeCollation extends Collation {
+    public function getSortKey($string){
+        $slug = Utils::getSlugByTitle($string);
+        if($slug){
+            return ucfirst($slug);
+        } else {
+            return $string;
+        }
+    }
+
+    public function getFirstLetter($string){
+        var_dump($string);
+        $slug = Utils::getSlugByTitle($string);
+        if($slug){
+            return strtoupper($slug[0]);
+        } else {
+            return mb_substr($string, 0, 1, 'UTF-8');
+        }
+    }
+}
\ No newline at end of file
diff --git a/includes/Utils.php b/includes/Utils.php
index 07ca53e..298a87a 100644
--- a/includes/Utils.php
+++ b/includes/Utils.php
@@ -37,8 +37,8 @@ class Utils {
             $cond = [
                 'slug' => $slug,
             ];
-            $cond['url'] = ['!', self::$dbr->addQuotes($excludeUrl)];
             
+            $cond['url'] = ['!', self::$dbr->addQuotes($excludeUrl)];
             $res = self::$dbr->selectField('url_slug', 'COUNT(*)', $cond, __METHOD__);
             return intval($res) > 0;
         } else {
diff --git a/modules/Timeless.less b/modules/Timeless.less
index db35a67..370d571 100644
--- a/modules/Timeless.less
+++ b/modules/Timeless.less
@@ -8,5 +8,9 @@
         #ca-custom-url a {
             .background-image-svg('./images/custom-url.svg', './images/custom-url.png');
         }
+
+        #page-tools #ca-custom-url a {
+            background-image: none;
+        }
     }
 }
\ No newline at end of file
diff --git a/specials/SpecialCustomUrl.php b/specials/SpecialCustomUrl.php
index a8d14f2..ba90138 100644
--- a/specials/SpecialCustomUrl.php
+++ b/specials/SpecialCustomUrl.php
@@ -99,6 +99,7 @@ class SpecialCustomUrl extends FormSpecialPage
         } else {
             $realSlug = Utils::addTitleSlugMap($this->title->getText(), $slug, [$slug], 1);
         }
+        
         $this->slug = $realSlug;
         return true;
     }