diff --git a/UdeskSDK.podspec b/UdeskSDK.podspec
index 7ec7607..42dcad9 100644
--- a/UdeskSDK.podspec
+++ b/UdeskSDK.podspec
@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name         = 'UdeskSDK'
-  s.version      = '5.2.5'
+  s.version      = '5.2.6'
   s.license      = 'MIT'
   s.summary      = 'Udesk SDK for iOS'
   s.homepage     = 'https://github.com/udesk/UdeskSDK-iOS'
diff --git a/UdeskSDK/SDK/libUdesk.a b/UdeskSDK/SDK/libUdesk.a
index 4ed92bc..88e1c68 100644
Binary files a/UdeskSDK/SDK/libUdesk.a and b/UdeskSDK/SDK/libUdesk.a differ
diff --git a/UdeskSDK/UDChatMessage/UDIM/Controller/UdeskChatViewController.m b/UdeskSDK/UDChatMessage/UDIM/Controller/UdeskChatViewController.m
index e7ffe9d..a7cd1b1 100755
--- a/UdeskSDK/UDChatMessage/UDIM/Controller/UdeskChatViewController.m
+++ b/UdeskSDK/UDChatMessage/UDIM/Controller/UdeskChatViewController.m
@@ -182,8 +182,7 @@ - (void)didUpdateAgentModel:(UdeskAgent *)agent {
 
 //收到客服发送的满意度调查
 - (void)didReceiveSurveyWithAgentId:(NSString *)agentId {
-
-    [self servicesFeedbackSurveyWithAgentId:agentId];
+    [self showSurveyViewWithAgentId:agentId];
 }
 
 //无消息会话标题
diff --git a/UdeskSDK/UDChatMessage/UDIM/Models/Messages/Robot/UdeskRichMessage.m b/UdeskSDK/UDChatMessage/UDIM/Models/Messages/Robot/UdeskRichMessage.m
index b83b405..3141405 100644
--- a/UdeskSDK/UDChatMessage/UDIM/Models/Messages/Robot/UdeskRichMessage.m
+++ b/UdeskSDK/UDChatMessage/UDIM/Models/Messages/Robot/UdeskRichMessage.m
@@ -44,7 +44,8 @@ - (void)layoutRichTextMessage {
         
         CGFloat spacing = ud_isIOS11 ? 0 : kUDRichMendSpacingOne;
         
-        self.attributedString = [self getAttributedStringWithText:self.message.content font:[UdeskSDKConfig customConfig].sdkStyle.messageContentFont];
+        UIFont *textFont = [self preferredRichTextFont];
+        self.attributedString = [self getAttributedStringWithText:self.message.content font:textFont];
         CGSize richSize = [self getAttributedStringSizeWithAttr:self.attributedString size:CGSizeMake([self textMaxWidth], CGFLOAT_MAX)];
         switch (self.message.messageFrom) {
             case UDMessageTypeSending:{
@@ -105,4 +106,56 @@ - (UITableViewCell *)getCellWithReuseIdentifier:(NSString *)cellReuseIdentifer {
     return [[UdeskRichCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellReuseIdentifer];
 }
 
+- (UIFont *)preferredRichTextFont
+{
+    UIFont *messageFont =[UdeskSDKConfig customConfig].sdkStyle.messageContentFont;
+    if (!messageFont) {
+        return nil;
+    }
+    UIFont *preferredFont = messageFont;
+    
+    BOOL fontFix = ![self isLocaleChineseLanguage];
+    static NSString *systemFontFamilyName;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        UIFont *sysFont = [UIFont systemFontOfSize:1];
+        systemFontFamilyName = sysFont.familyName;
+    });
+    
+    //非中文环境下默认消息字体强制 苹方
+    if (fontFix && systemFontFamilyName && [systemFontFamilyName isEqualToString:messageFont.familyName]) {
+        UIFontDescriptor *fontDescriptor = [messageFont fontDescriptor];
+        NSMutableDictionary<UIFontDescriptorAttributeName, id>  *atts = [[fontDescriptor fontAttributes] mutableCopy];
+        [atts setValue:nil forKey:UIFontDescriptorTextStyleAttribute];
+        [atts setValue:@"PingFang SC" forKey:UIFontDescriptorFamilyAttribute];
+        [atts setValue:@"PingFangSC-Regular" forKey:UIFontDescriptorNameAttribute];
+        UIFontDescriptorSymbolicTraits traits = fontDescriptor.symbolicTraits;
+        UIFontDescriptor *preferrDescriptor = [UIFontDescriptor fontDescriptorWithFontAttributes:atts];
+        preferrDescriptor = [preferrDescriptor fontDescriptorWithSymbolicTraits:traits];
+        
+        preferredFont = [UIFont fontWithDescriptor:preferrDescriptor size:messageFont.pointSize];
+    }
+
+    return preferredFont;
+}
+
+- (BOOL)isLocaleChineseLanguage
+{
+    NSArray *languages = [NSLocale preferredLanguages];
+    NSString *pfLanguageCode = [languages objectAtIndex:0];
+    if ([pfLanguageCode isEqualToString:@"zh-Hant"] ||
+        [pfLanguageCode hasPrefix:@"zh-Hant"] ||
+        [pfLanguageCode hasPrefix:@"yue-Hant"] ||
+        [pfLanguageCode isEqualToString:@"zh-HK"] ||
+        [pfLanguageCode isEqualToString:@"zh-TW"]||
+        [pfLanguageCode isEqualToString:@"zh-Hans"] ||
+        [pfLanguageCode hasPrefix:@"yue-Hans"] ||
+        [pfLanguageCode hasPrefix:@"zh-Hans"]
+        )
+    {
+        return YES;
+    }
+    return NO;
+}
+ 
 @end
diff --git a/UdeskSDK/UDChatMessage/UDTools/Category/NSAttributedString/NSAttributedString+UdeskHTML.m b/UdeskSDK/UDChatMessage/UDTools/Category/NSAttributedString/NSAttributedString+UdeskHTML.m
index 85374c1..f2c6ae9 100644
--- a/UdeskSDK/UDChatMessage/UDTools/Category/NSAttributedString/NSAttributedString+UdeskHTML.m
+++ b/UdeskSDK/UDChatMessage/UDTools/Category/NSAttributedString/NSAttributedString+UdeskHTML.m
@@ -90,7 +90,9 @@ + (NSAttributedString *)attributedStringFromNode:(xmlNodePtr)xmlNode customFont:
         //加粗标签
         if (strncmp("strong", (const char *)xmlNode->name, strlen((const char *)xmlNode->name)) == 0) {
             if (customFont) {
-                UIFont *boldFont = [UIFont boldSystemFontOfSize:customFont.pointSize];
+                UIFontDescriptor *fontDescriptor = [customFont fontDescriptor];
+                UIFontDescriptor *bodlDescriptor = [fontDescriptor fontDescriptorWithSymbolicTraits:fontDescriptor.symbolicTraits | UIFontDescriptorTraitBold];
+                UIFont *boldFont = [UIFont fontWithDescriptor:bodlDescriptor size:customFont.pointSize];
                 [nodeAttributedString addAttribute:NSFontAttributeName value:boldFont range:nodeAttributedStringRange];
             }
         }
@@ -353,4 +355,13 @@ + (NSAttributedString *)attributedStringFromNode:(xmlNodePtr)xmlNode customFont:
     return nodeAttributedString;
 }
 
+
+- (UIFont *)bodyFont:(UIFont *)baseFont
+{
+    UIFontDescriptor *fontDescriptor = [baseFont fontDescriptor];
+    UIFontDescriptor *bodlDescriptor = [fontDescriptor fontDescriptorWithSymbolicTraits:fontDescriptor.symbolicTraits | UIFontDescriptorTraitBold];
+    UIFont *boldFont = [UIFont fontWithDescriptor:bodlDescriptor size:baseFont.pointSize];
+    return boldFont;
+}
+
 @end
diff --git a/UdeskSDKExample/UdeskSDKExample.xcodeproj/project.pbxproj b/UdeskSDKExample/UdeskSDKExample.xcodeproj/project.pbxproj
index ee5b56b..e8166ec 100644
--- a/UdeskSDKExample/UdeskSDKExample.xcodeproj/project.pbxproj
+++ b/UdeskSDKExample/UdeskSDKExample.xcodeproj/project.pbxproj
@@ -2499,7 +2499,7 @@
 					"$(inherited)",
 					"\"$(SRCROOT)/../UdeskSDK/SDK\"",
 				);
-				MARKETING_VERSION = 5.2.5;
+				MARKETING_VERSION = 5.2.6;
 				OTHER_LDFLAGS = (
 					"$(inherited)",
 					"-l\"c++\"",
@@ -2592,7 +2592,7 @@
 					"$(inherited)",
 					"\"$(SRCROOT)/../UdeskSDK/SDK\"",
 				);
-				MARKETING_VERSION = 5.2.5;
+				MARKETING_VERSION = 5.2.6;
 				OTHER_LDFLAGS = (
 					"$(inherited)",
 					"-l\"c++\"",