优化：支持文字排版

src/components/PreviewGrid.tsx

@@ -352,14 +352,13 @@ export const PaperSettingsPanel: React.FC<PaperSettingsPanelProps> = ({
                 onClick={autoCenterMargins}
                 className={
                   isPs
-                    ? 'ps-btn w-full text-[10px]'
+                    ? 'ps-btn text-[10px]'
                     : isMobile
                       ? 'mobile-secondary-btn w-full'
                       : 'w-full inline-flex items-center justify-center gap-1 bg-white hover:bg-gray-100 border border-gray-200 text-gray-600 py-1.5 px-3 rounded-lg text-[10px] font-bold cursor-pointer'
                 }
               >
-                <RefreshCcw className="w-3.5 h-3.5" />
-                自动边距
+                计算
               </button>
             </div>
           </div>