diff --git a/frontend/src/components/ChatView.vue b/frontend/src/components/ChatView.vue
index eb9425e..6914f75 100644
--- a/frontend/src/components/ChatView.vue
+++ b/frontend/src/components/ChatView.vue
@@ -49,10 +49,7 @@
               <div v-if="streamingThinking" class="thinking-content streaming-thinking">
                 {{ streamingThinking }}
               </div>
-              <div class="message-content streaming-content">
-                {{ streamingContent || '...' }}
-                <span class="cursor-blink">|</span>
-              </div>
+              <div class="message-content streaming-content" v-html="renderedStreamContent || '<span class=\'placeholder\'>...</span>'"></div>
             </div>
           </div>
         </div>
@@ -68,9 +65,22 @@
 </template>
 
 <script setup>
-import { ref, watch, nextTick } from 'vue'
+import { ref, computed, watch, nextTick } from 'vue'
 import MessageBubble from './MessageBubble.vue'
 import MessageInput from './MessageInput.vue'
+import { marked } from 'marked'
+import hljs from 'highlight.js'
+
+marked.setOptions({
+  highlight(code, lang) {
+    if (lang && hljs.getLanguage(lang)) {
+      return hljs.highlight(code, { language: lang }).value
+    }
+    return hljs.highlightAuto(code).value
+  },
+  breaks: true,
+  gfm: true,
+})
 
 const props = defineProps({
   conversation: { type: Object, default: null },
@@ -87,6 +97,11 @@ defineEmits(['sendMessage', 'deleteMessage', 'toggleSettings', 'loadMoreMessages
 const scrollContainer = ref(null)
 const inputRef = ref(null)
 
+const renderedStreamContent = computed(() => {
+  if (!props.streamingContent) return ''
+  return marked.parse(props.streamingContent)
+})
+
 function scrollToBottom(smooth = true) {
   nextTick(() => {
     const el = scrollContainer.value
@@ -142,7 +157,7 @@ defineExpose({ scrollToBottom })
   width: 64px;
   height: 64px;
   border-radius: 16px;
-  background: linear-gradient(135deg, #4f46e5, #7c3aed);
+  background: linear-gradient(135deg, #2563eb, #0ea5e9);
   color: white;
   display: flex;
   align-items: center;
@@ -193,8 +208,8 @@ defineExpose({ scrollToBottom })
   font-size: 11px;
   padding: 2px 8px;
   border-radius: 10px;
-  background: rgba(79, 70, 229, 0.15);
-  color: #a5b4fc;
+  background: rgba(37, 99, 235, 0.15);
+  color: #60a5fa;
   flex-shrink: 0;
 }
 
@@ -288,16 +303,75 @@ defineExpose({ scrollToBottom })
   font-size: 15px;
   line-height: 1.7;
   color: #e2e8f0;
-  white-space: pre-wrap;
+  word-break: break-word;
 }
 
-.cursor-blink {
-  animation: blink 0.8s infinite;
-  color: #4f46e5;
+.streaming-content :deep(p) {
+  margin: 0 0 8px;
 }
 
-@keyframes blink {
-  0%, 50% { opacity: 1; }
-  51%, 100% { opacity: 0; }
+.streaming-content :deep(p:last-child) {
+  margin-bottom: 0;
+}
+
+.streaming-content :deep(pre) {
+  background: #0d1117;
+  border-radius: 8px;
+  padding: 16px;
+  overflow-x: auto;
+  margin: 8px 0;
+}
+
+.streaming-content :deep(pre code) {
+  font-family: 'JetBrains Mono', 'Fira Code', monospace;
+  font-size: 13px;
+  line-height: 1.5;
+}
+
+.streaming-content :deep(code) {
+  background: rgba(255, 255, 255, 0.06);
+  padding: 2px 6px;
+  border-radius: 4px;
+  font-size: 13px;
+  font-family: 'JetBrains Mono', 'Fira Code', monospace;
+}
+
+.streaming-content :deep(pre code) {
+  background: none;
+  padding: 0;
+}
+
+.streaming-content :deep(ul),
+.streaming-content :deep(ol) {
+  padding-left: 20px;
+  margin: 8px 0;
+}
+
+.streaming-content :deep(blockquote) {
+  border-left: 3px solid rgba(59, 130, 246, 0.5);
+  padding-left: 12px;
+  color: #94a3b8;
+  margin: 8px 0;
+}
+
+.streaming-content :deep(table) {
+  border-collapse: collapse;
+  margin: 8px 0;
+  width: 100%;
+}
+
+.streaming-content :deep(th),
+.streaming-content :deep(td) {
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  padding: 8px 12px;
+  text-align: left;
+}
+
+.streaming-content :deep(th) {
+  background: rgba(255, 255, 255, 0.04);
+}
+
+.streaming-content :deep(.placeholder) {
+  color: #475569;
 }
 </style>
diff --git a/frontend/src/components/MessageBubble.vue b/frontend/src/components/MessageBubble.vue
index 408059c..9eeedc3 100644
--- a/frontend/src/components/MessageBubble.vue
+++ b/frontend/src/components/MessageBubble.vue
@@ -103,12 +103,12 @@ function copyContent() {
 }
 
 .user .avatar {
-  background: linear-gradient(135deg, #4f46e5, #7c3aed);
+  background: linear-gradient(135deg, #2563eb, #0ea5e9);
   color: white;
 }
 
 .assistant .avatar {
-  background: linear-gradient(135deg, #059669, #10b981);
+  background: linear-gradient(135deg, #0ea5e9, #06b6d4);
   color: white;
 }
 
@@ -212,7 +212,7 @@ function copyContent() {
 }
 
 .message-content :deep(blockquote) {
-  border-left: 3px solid rgba(79, 70, 229, 0.5);
+  border-left: 3px solid rgba(59, 130, 246, 0.5);
   padding-left: 12px;
   color: #94a3b8;
   margin: 8px 0;
@@ -268,8 +268,8 @@ function copyContent() {
 }
 
 .btn-copy:hover {
-  color: #a5b4fc;
-  background: rgba(165, 180, 252, 0.1);
+  color: #60a5fa;
+  background: rgba(96, 165, 250, 0.1);
 }
 
 .btn-delete-msg:hover {
diff --git a/frontend/src/components/MessageInput.vue b/frontend/src/components/MessageInput.vue
index 605bc0f..e48a8d9 100644
--- a/frontend/src/components/MessageInput.vue
+++ b/frontend/src/components/MessageInput.vue
@@ -88,7 +88,7 @@ defineExpose({ focus })
 }
 
 .input-wrapper:focus-within {
-  border-color: rgba(79, 70, 229, 0.5);
+  border-color: rgba(37, 99, 235, 0.5);
 }
 
 textarea {
@@ -134,13 +134,13 @@ textarea:disabled {
 }
 
 .btn-send.active {
-  background: #4f46e5;
+  background: #2563eb;
   color: white;
   cursor: pointer;
 }
 
 .btn-send.active:hover {
-  background: #6366f1;
+  background: #3b82f6;
 }
 
 .input-hint {
diff --git a/frontend/src/components/SettingsPanel.vue b/frontend/src/components/SettingsPanel.vue
index 2e11dc7..23c8711 100644
--- a/frontend/src/components/SettingsPanel.vue
+++ b/frontend/src/components/SettingsPanel.vue
@@ -200,7 +200,7 @@ function save() {
 
 .value-display {
   float: right;
-  color: #a5b4fc;
+  color: #60a5fa;
   font-weight: 600;
 }
 
@@ -223,7 +223,7 @@ function save() {
 .form-group input[type="text"]:focus,
 .form-group textarea:focus,
 .form-group select:focus {
-  border-color: rgba(79, 70, 229, 0.5);
+  border-color: rgba(37, 99, 235, 0.5);
 }
 
 .form-group textarea {
@@ -264,7 +264,7 @@ function save() {
   width: 16px;
   height: 16px;
   border-radius: 50%;
-  background: #4f46e5;
+  background: #2563eb;
   cursor: pointer;
   border: 2px solid #0f172a;
 }
@@ -346,7 +346,7 @@ function save() {
   padding: 8px 20px;
   border-radius: 8px;
   border: none;
-  background: #4f46e5;
+  background: #2563eb;
   color: white;
   font-size: 14px;
   cursor: pointer;
@@ -354,7 +354,7 @@ function save() {
 }
 
 .btn-save:hover {
-  background: #6366f1;
+  background: #3b82f6;
 }
 
 .slide-enter-active,
diff --git a/frontend/src/components/Sidebar.vue b/frontend/src/components/Sidebar.vue
index fe104e2..565d8a4 100644
--- a/frontend/src/components/Sidebar.vue
+++ b/frontend/src/components/Sidebar.vue
@@ -89,10 +89,10 @@ function onContextMenu(e, conv) {
 .btn-new {
   width: 100%;
   padding: 10px 16px;
-  background: rgba(79, 70, 229, 0.15);
-  border: 1px dashed rgba(79, 70, 229, 0.4);
+  background: rgba(37, 99, 235, 0.15);
+  border: 1px dashed rgba(37, 99, 235, 0.4);
   border-radius: 10px;
-  color: #a5b4fc;
+  color: #60a5fa;
   font-size: 14px;
   cursor: pointer;
   display: flex;
@@ -102,8 +102,8 @@ function onContextMenu(e, conv) {
 }
 
 .btn-new:hover {
-  background: rgba(79, 70, 229, 0.25);
-  border-color: rgba(79, 70, 229, 0.6);
+  background: rgba(37, 99, 235, 0.25);
+  border-color: rgba(37, 99, 235, 0.6);
 }
 
 .btn-new .icon {
@@ -141,7 +141,7 @@ function onContextMenu(e, conv) {
 }
 
 .conversation-item.active {
-  background: rgba(79, 70, 229, 0.2);
+  background: rgba(37, 99, 235, 0.2);
 }
 
 .conv-info {