diff --git a/index.html b/index.html
index 2dcf41d..d2dcc9b 100644
--- a/index.html
+++ b/index.html
@@ -1,37 +1,48 @@
-<!DOCTYPE html>
+<!doctype html>
 <html lang="zh-CN">
-  <head>
-    <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>ThinkFlow AI - Visual Idea Expansion Tool | 视觉化思路扩展工具</title>
-    <meta name="description" content="ThinkFlow AI - 基于大语言模型的视觉化思路扩展与灵感激发工具。通过图形化界面深度挖掘创意，支持多维扩展、图片生成与结构化总结。A visual idea expansion and inspiration tool powered by LLM." />
-    <meta name="keywords" content="ThinkFlow AI, 思路扩展, 灵感激发, 视觉化思维, AI工具, 脑图, 创意辅助, Idea Expansion, Inspiration Tool, Visual Thinking, AI Tools, Mind Map, Creative Assistant" />
-    <meta name="author" content="Liuziting" />
+    <head>
+        <meta charset="UTF-8" />
+        <link rel="icon" href="/logo.png" />
+        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+        <title>ThinkFlow AI - Visual Idea Expansion Tool | 视觉化思路扩展工具</title>
+        <meta
+            name="description"
+            content="ThinkFlow AI - 基于大语言模型的视觉化思路扩展与灵感激发工具。通过图形化界面深度挖掘创意，支持多维扩展、图片生成与结构化总结。A visual idea expansion and inspiration tool powered by LLM."
+        />
+        <meta
+            name="keywords"
+            content="ThinkFlow AI, 思路扩展, 灵感激发, 视觉化思维, AI工具, 脑图, 创意辅助, Idea Expansion, Inspiration Tool, Visual Thinking, AI Tools, Mind Map, Creative Assistant"
+        />
+        <meta name="author" content="Liuziting" />
 
-    <!-- Open Graph / Facebook -->
-    <meta property="og:type" content="website" />
-    <meta property="og:url" content="https://github.com/liu-ziting/ThinkFlowAI" />
-    <meta property="og:title" content="ThinkFlow AI - Visual Idea Expansion Tool" />
-    <meta property="og:description" content="A visual idea expansion and inspiration tool powered by LLM. 基于大模型的视觉化思路扩展与灵感激发工具。" />
-    <meta property="og:image" content="/vite.svg" />
+        <!-- Open Graph / Facebook -->
+        <meta property="og:type" content="website" />
+        <meta property="og:url" content="https://github.com/liu-ziting/ThinkFlowAI" />
+        <meta property="og:title" content="ThinkFlow AI - Visual Idea Expansion Tool" />
+        <meta property="og:description" content="A visual idea expansion and inspiration tool powered by LLM. 基于大模型的视觉化思路扩展与灵感激发工具。" />
 
-    <!-- Twitter -->
-    <meta property="twitter:card" content="summary_large_image" />
-    <meta property="twitter:url" content="https://github.com/liu-ziting/ThinkFlowAI" />
-    <meta property="twitter:title" content="ThinkFlow AI - Visual Idea Expansion Tool" />
-    <meta property="twitter:description" content="A visual idea expansion and inspiration tool powered by LLM. 基于大模型的视觉化思路扩展与灵感激发工具。" />
-    <meta property="twitter:image" content="/vite.svg" />
-  </head>
-  <body>
-    <div id="app"></div>
-    <script type="module" src="/src/main.ts"></script>
-    <script type="text/javascript">
-        (function(c,l,a,r,i,t,y){
-            c[a]=c[a]||function(){(c[a].q=c[a].q||[]).push(arguments)};
-            t=l.createElement(r);t.async=1;t.src="https://www.clarity.ms/tag/"+i;
-            y=l.getElementsByTagName(r)[0];y.parentNode.insertBefore(t,y);
-        })(window, document, "clarity", "script", "v4wwefc38i");
-    </script>
-  </body>
+        <!-- Twitter -->
+        <meta property="twitter:card" content="summary_large_image" />
+        <meta property="twitter:url" content="https://github.com/liu-ziting/ThinkFlowAI" />
+        <meta property="twitter:title" content="ThinkFlow AI - Visual Idea Expansion Tool" />
+        <meta property="twitter:description" content="A visual idea expansion and inspiration tool powered by LLM. 基于大模型的视觉化思路扩展与灵感激发工具。" />
+    </head>
+    <body>
+        <div id="app"></div>
+        <script type="module" src="/src/main.ts"></script>
+        <script type="text/javascript">
+            ;(function (c, l, a, r, i, t, y) {
+                c[a] =
+                    c[a] ||
+                    function () {
+                        ;(c[a].q = c[a].q || []).push(arguments)
+                    }
+                t = l.createElement(r)
+                t.async = 1
+                t.src = 'https://www.clarity.ms/tag/' + i
+                y = l.getElementsByTagName(r)[0]
+                y.parentNode.insertBefore(t, y)
+            })(window, document, 'clarity', 'script', 'v4wwefc38i')
+        </script>
+    </body>
 </html>
diff --git a/public/logo.png b/public/logo.png
new file mode 100644
index 0000000..4c1db76
Binary files /dev/null and b/public/logo.png differ
diff --git a/src/components/BottomBar.vue b/src/components/BottomBar.vue
index 580150b..8568a66 100644
--- a/src/components/BottomBar.vue
+++ b/src/components/BottomBar.vue
@@ -32,7 +32,7 @@ const emit = defineEmits<{
 </script>
 
 <template>
-    <div class="fixed bottom-6 md:bottom-8 left-1/2 -translate-x-1/2 z-50 flex flex-col items-center gap-4 w-full max-w-2xl px-4 md:px-6">
+    <div class="fixed bottom-4 md:bottom-6 left-1/2 -translate-x-1/2 z-50 flex flex-col items-center gap-4 w-full max-w-2xl px-4 md:px-6">
         <div class="flex items-center gap-2 md:gap-3 w-full">
             <div
                 class="flex-grow flex items-center gap-2 md:gap-4 bg-slate-50 border border-slate-200 rounded-xl md:rounded-2xl px-3 md:px-5 py-2 md:py-3 focus-within:bg-white focus-within:shadow-xl focus-within:shadow-slate-100 transition-all"
diff --git a/src/components/SettingsModal.vue b/src/components/SettingsModal.vue
index d4147c8..f82b9fd 100644
--- a/src/components/SettingsModal.vue
+++ b/src/components/SettingsModal.vue
@@ -47,7 +47,7 @@ const emit = defineEmits<{
                 </button>
             </div>
 
-            <div class="p-8 space-y-8 max-h-[70vh] overflow-y-auto custom-scrollbar">
+            <div class="p-8 py-4 space-y-8 max-h-[70vh] overflow-y-auto custom-scrollbar">
                 <div class="flex p-1.5 bg-slate-100 rounded-2xl w-fit">
                     <button
                         @click="props.apiConfig.mode = 'default'"
