diff --git a/public/src/uncloseai-modal-builtin.css b/public/src/uncloseai-modal-builtin.css
index 7a8b4b5..9c081e7 100644
--- a/public/src/uncloseai-modal-builtin.css
+++ b/public/src/uncloseai-modal-builtin.css
@@ -235,7 +235,7 @@ dialog#uncloseai-embedded-modal[data-theme="light"] .uncloseai-modal-settings {
   border-radius: 18px 18px 4px 18px;
   max-width: 80%;
   word-wrap: break-word;
-  font-size: 14px;
+  font-size: 18px;
 }
 
 .ai-message {
@@ -246,7 +246,7 @@ dialog#uncloseai-embedded-modal[data-theme="light"] .uncloseai-modal-settings {
   border-radius: 18px 18px 18px 4px;
   max-width: 80%;
   box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
-  font-size: 14px;
+  font-size: 18px;
 }
 
 /* Dark theme message colors */
@@ -691,7 +691,7 @@ dialog#tts-modal {
   border: none;
   border-radius: 4px;
   cursor: pointer;
-  font-size: 14px;
+  font-size: 18px;
   min-width: 100px;
 }
 
@@ -754,7 +754,7 @@ dialog#tts-modal {
   border: 1px solid var(--uncloseai-button-border, #dee2e6);
   border-radius: 6px;
   cursor: pointer;
-  font-size: 14px;
+  font-size: 18px;
   color: var(--uncloseai-primary-text, #495057);
   transition: all 0.2s;
   white-space: nowrap;
@@ -828,7 +828,7 @@ dialog#tts-modal {
   padding: 8px 12px;
   border: 1px solid var(--uncloseai-button-border, #dee2e6);
   border-radius: 6px;
-  font-size: 14px;
+  font-size: 18px;
   background: var(--uncloseai-button-background, #ffffff);
   color: var(--uncloseai-primary-text, #495057);
 }
@@ -857,7 +857,7 @@ dialog#uncloseai-embedded-modal .uncloseai-code-copy-btn {
   border: 1px solid rgba(255, 255, 255, 0.3);
   padding: 4px 8px;
   border-radius: 4px;
-  font-size: 14px;
+  font-size: 18px;
   cursor: pointer;
   opacity: 0.9;
   transition: all 0.2s;
@@ -937,7 +937,7 @@ dialog#translate-modal button {
 }
 
 .uncloseai-toggle-label {
-  font-size: 14px;
+  font-size: 18px;
   color: #495057;
   cursor: pointer;
 }
@@ -948,7 +948,7 @@ dialog#translate-modal button {
 
 .uncloseai-input-label {
   display: block;
-  font-size: 14px;
+  font-size: 18px;
   font-weight: 500;
   color: #495057;
   margin-bottom: 4px;
@@ -959,7 +959,7 @@ dialog#translate-modal button {
   padding: 8px 12px;
   border: 1px solid #ced4da;
   border-radius: 4px;
-  font-size: 14px;
+  font-size: 18px;
   color: #495057;
   background: white;
   box-sizing: border-box;
@@ -1070,7 +1070,7 @@ dialog#uncloseai-embedded-modal[data-theme="dark"] .uncloseai-chat-box {
   padding: 8px 12px;
   border: 1px solid var(--uncloseai-button-border, #dee2e6);
   border-radius: 6px;
-  font-size: 14px;
+  font-size: 18px;
   background: var(--uncloseai-button-background, #ffffff);
   color: var(--uncloseai-primary-text, #495057);
 }
@@ -1228,14 +1228,14 @@ dialog#uncloseai-embedded-modal[data-theme="dark"] .user-message {
   color: var(--uncloseai-primary-text, #333);
   background: var(--uncloseai-button-background, #f5f5f5);
   font-weight: bold;
-  font-size: 14px;
+  font-size: 18px;
 }
 
 .translate-dropdown-option {
   padding: 8px 12px;
   cursor: pointer;
   transition: background-color 0.2s;
-  font-size: 14px;
+  font-size: 18px;
   line-height: 1.4;
   color: var(--uncloseai-primary-text, #333);
 }
@@ -1332,7 +1332,7 @@ dialog#uncloseai-embedded-modal[data-theme="dark"] .user-message {
   height: 69px;
   border-radius: 21px;
   font-family: 'ChunkFiveRegular', monospace;
-  font-size: 14px;
+  font-size: 18px;
   cursor: pointer;
   box-shadow: 0 4px 12px rgba(0,0,0,0.3);
   z-index: 1000;
@@ -1469,14 +1469,14 @@ dialog#uncloseai-embedded-modal[data-theme="dark"] .user-message {
   border-bottom: 1px solid var(--uncloseai-divider-color, #ddd);
   background: var(--uncloseai-content-background, #f5f5f5);
   font-weight: bold;
-  font-size: 14px;
+  font-size: 18px;
 }
 
 .widget-translate-dropdown .option {
   padding: 8px 12px;
   cursor: pointer;
   transition: background-color 0.2s;
-  font-size: 14px;
+  font-size: 18px;
   line-height: 1.4;
   color: var(--uncloseai-primary-text, #333);
 }
diff --git a/public/src/uncloseai-modal-pico.css b/public/src/uncloseai-modal-pico.css
index 8d45568..403f234 100644
--- a/public/src/uncloseai-modal-pico.css
+++ b/public/src/uncloseai-modal-pico.css
@@ -255,7 +255,7 @@ dialog#uncloseai-embedded-modal[data-theme="light"] .uncloseai-modal-settings {
   border-radius: 18px 18px 4px 18px;
   max-width: 95%;
   word-wrap: break-word;
-  font-size: 14px;
+  font-size: 18px;
   margin-left: auto;
   width: fit-content;
 }
@@ -267,7 +267,7 @@ dialog#uncloseai-embedded-modal[data-theme="light"] .uncloseai-modal-settings {
   border-radius: 18px 18px 18px 4px;
   max-width: 95%;
   box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
-  font-size: 14px;
+  font-size: 18px;
   margin-right: auto;
   width: fit-content;
 }
@@ -761,7 +761,7 @@ dialog#tts-modal {
   border: none;
   border-radius: 4px;
   cursor: pointer;
-  font-size: 14px;
+  font-size: 18px;
   min-width: 100px;
 }
 
@@ -824,7 +824,7 @@ dialog#tts-modal {
   border: 1px solid var(--uncloseai-button-border, #dee2e6);
   border-radius: 6px;
   cursor: pointer;
-  font-size: 14px;
+  font-size: 18px;
   color: var(--uncloseai-primary-text, #495057);
   transition: all 0.2s;
   white-space: nowrap;
@@ -898,7 +898,7 @@ dialog#tts-modal {
   padding: 8px 12px;
   border: 1px solid var(--uncloseai-button-border, #dee2e6);
   border-radius: 6px;
-  font-size: 14px;
+  font-size: 18px;
   background: var(--uncloseai-button-background, #ffffff);
   color: var(--uncloseai-primary-text, #495057);
 }
@@ -927,7 +927,7 @@ dialog#uncloseai-embedded-modal .uncloseai-code-copy-btn {
   border: 1px solid rgba(255, 255, 255, 0.3);
   padding: 4px 8px;
   border-radius: 4px;
-  font-size: 14px;
+  font-size: 18px;
   cursor: pointer;
   opacity: 0.9;
   transition: all 0.2s;
@@ -1007,7 +1007,7 @@ dialog#translate-modal button {
 }
 
 .uncloseai-toggle-label {
-  font-size: 14px;
+  font-size: 18px;
   color: #495057;
   cursor: pointer;
 }
@@ -1018,7 +1018,7 @@ dialog#translate-modal button {
 
 .uncloseai-input-label {
   display: block;
-  font-size: 14px;
+  font-size: 18px;
   font-weight: 500;
   color: #495057;
   margin-bottom: 4px;
@@ -1029,7 +1029,7 @@ dialog#translate-modal button {
   padding: 8px 12px;
   border: 1px solid #ced4da;
   border-radius: 4px;
-  font-size: 14px;
+  font-size: 18px;
   color: #495057;
   background: white;
   box-sizing: border-box;
@@ -1410,7 +1410,7 @@ dialog#uncloseai-embedded-modal[data-theme="dark"] .user-message {
   height: 69px;
   border-radius: 21px;
   font-family: 'ChunkFiveRegular', monospace;
-  font-size: 14px;
+  font-size: 18px;
   cursor: pointer;
   box-shadow: 0 4px 12px rgba(0,0,0,0.3);
   z-index: 1000;
@@ -1541,7 +1541,7 @@ dialog#uncloseai-embedded-modal[data-theme="dark"] .user-message {
   padding: 8px 12px;
   cursor: pointer;
   transition: background-color 0.2s;
-  font-size: 14px;
+  font-size: 18px;
   line-height: 1.4;
 }