diff --git a/frontend/app/analysis/results/page.tsx b/frontend/app/analysis/results/page.tsx
index 6a4f61d8..403f2606 100644
--- a/frontend/app/analysis/results/page.tsx
+++ b/frontend/app/analysis/results/page.tsx
@@ -262,7 +262,7 @@ export default function AnalysisResultsPage() {
                   </CardHeader>
                   <CardContent>
                     {getNestedValue(analysisResult.reports, analyst.reportKey) ? (
-                      <div className="prose prose-sm max-w-none dark:prose-invert animate-fade-in">
+                      <div className="prose prose-sm xl:prose-base max-w-none dark:prose-invert animate-fade-in overflow-x-auto prose-table:border-collapse prose-table:w-full prose-td:border prose-td:border-gray-300 dark:prose-td:border-gray-600 prose-td:p-2 prose-th:border prose-th:border-gray-300 dark:prose-th:border-gray-600 prose-th:p-2 prose-th:bg-gray-100 dark:prose-th:bg-gray-800">
                         <ReactMarkdown remarkPlugins={[remarkGfm]}>
                           {getNestedValue(analysisResult.reports, analyst.reportKey)}
                         </ReactMarkdown>
diff --git a/frontend/app/history/chat/page.tsx b/frontend/app/history/chat/page.tsx
index 4464d23b..31653b61 100644
--- a/frontend/app/history/chat/page.tsx
+++ b/frontend/app/history/chat/page.tsx
@@ -424,16 +424,15 @@ function HistoryChatContent() {
                   )}
                 </div>
 
-                {/* Bubble */}
                 <div
-                  className={`max-w-[85%] md:max-w-[75%] rounded-2xl px-5 py-4 text-base leading-relaxed shadow-sm ${
+                  className={`max-w-[100%] md:max-w-[85%] rounded-2xl px-5 py-4 text-base leading-relaxed shadow-sm overflow-x-auto ${
                     msg.role === "user"
                       ? "bg-gradient-to-r from-blue-500 to-cyan-500 text-white rounded-tr-sm"
                       : "bg-white dark:bg-gray-800 border border-gray-100 dark:border-gray-700 text-gray-800 dark:text-gray-200 rounded-tl-sm"
                   }`}
                 >
                   {msg.role === "assistant" ? (
-                    <div className="prose prose-sm md:prose-base dark:prose-invert max-w-none [&>*:first-child]:mt-0 [&>*:last-child]:mb-0 [&_table]:text-sm">
+                    <div className="prose prose-sm md:prose-base dark:prose-invert max-w-none [&>*:first-child]:mt-0 [&>*:last-child]:mb-0 prose-table:border-collapse prose-table:w-full prose-td:border prose-td:border-gray-300 dark:prose-td:border-gray-600 prose-td:p-2 prose-th:border prose-th:border-gray-300 dark:prose-th:border-gray-600 prose-th:p-2 prose-th:bg-gray-100 dark:prose-th:bg-gray-800">
                       <ReactMarkdown remarkPlugins={[remarkGfm]}>
                         {msg.content}
                       </ReactMarkdown>
@@ -480,16 +479,7 @@ function HistoryChatContent() {
           <div className="flex flex-wrap items-center gap-2">
             <Select value={selectedModelId} onValueChange={setSelectedModelId}>
               <SelectTrigger className="w-fit min-w-[200px] h-9 text-sm bg-white dark:bg-gray-800 rounded-full border border-gray-200 dark:border-gray-700 hover:bg-gray-50 dark:hover:bg-gray-700/50 shadow-sm transition-colors">
-                <div className="flex items-center gap-2 text-gray-700 dark:text-gray-300">
-                  {(() => {
-                    const activeModel = AVAILABLE_MODELS.find(m => m.id === selectedModelId);
-                    if (activeModel?.logo) {
-                      return <Image src={activeModel.logo} alt={activeModel.provider} width={16} height={16} className="shrink-0" />;
-                    }
-                    return <Settings2 className="h-4 w-4 text-purple-500 shrink-0" />;
-                  })()}
-                  <SelectValue placeholder="選擇模型" />
-                </div>
+                <SelectValue placeholder="選擇模型" />
               </SelectTrigger>
               <SelectContent className="max-h-[300px]">
                 {AVAILABLE_MODELS.map((m) => (
diff --git a/frontend/components/analysis/AnalystReport.tsx b/frontend/components/analysis/AnalystReport.tsx
index 502d3a43..2ad9ecd4 100644
--- a/frontend/components/analysis/AnalystReport.tsx
+++ b/frontend/components/analysis/AnalystReport.tsx
@@ -130,7 +130,7 @@ function ReportSection({ title, content }: { title: string; content: string }) {
   return (
     <div className="border rounded-lg p-4 bg-gradient-to-br from-blue-50/50 to-purple-50/50 dark:from-blue-900/10 dark:to-purple-900/10 hover:shadow-md transition-shadow">
       <h3 className="font-semibold text-lg mb-2">{title}</h3>
-      <div className="prose prose-sm dark:prose-invert max-w-none">
+      <div className="prose prose-sm xl:prose-base dark:prose-invert max-w-none overflow-x-auto prose-table:border-collapse prose-table:w-full prose-td:border prose-td:border-gray-300 dark:prose-td:border-gray-600 prose-td:p-2 prose-th:border prose-th:border-gray-300 dark:prose-th:border-gray-600 prose-th:p-2 prose-th:bg-gray-100 dark:prose-th:bg-gray-800">
         <ReactMarkdown remarkPlugins={[remarkGfm]}>
           {content}
         </ReactMarkdown>