diff --git a/src-tauri/tauri.conf.json b/src-tauri/tauri.conf.json
index 1afdbc6..cfaef06 100644
--- a/src-tauri/tauri.conf.json
+++ b/src-tauri/tauri.conf.json
@@ -13,8 +13,8 @@
     "windows": [
       {
         "title": "Windows 清理工具",
-        "width": 1400,
-        "height": 900
+        "width": 1150,
+        "height": 750
       }
     ],
     "security": {
diff --git a/src/App.vue b/src/App.vue
index e4887c8..63a04df 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -304,8 +304,10 @@ function splitSize(sizeStr: string | number) {
       <!-- 1. 快速清理页面 -->
       <section v-if="activeTab === 'clean-c-fast'" class="page-container">
         <div class="page-header">
-          <h1>快速清理系统盘</h1>
-          <p>一键释放 C 盘空间，不影响系统运行。</p>
+          <div class="header-info">
+            <h1>快速清理系统盘</h1>
+            <p>一键释放 C 盘空间，不影响系统运行。</p>
+          </div>
         </div>
 
         <div class="main-action">
@@ -404,8 +406,10 @@ function splitSize(sizeStr: string | number) {
       <!-- 2. 高级模式页面 -->
       <section v-else-if="activeTab === 'clean-c-advanced'" class="page-container">
         <div class="page-header">
-          <h1>高级清理工具</h1>
-          <p>执行深层系统优化，释放更多被占用的磁盘空间。</p>
+          <div class="header-info">
+            <h1>高级清理工具</h1>
+            <p>执行深层系统优化，释放更多磁盘空间。</p>
+          </div>
         </div>
 
         <div class="adv-card-list">
@@ -492,14 +496,15 @@ function splitSize(sizeStr: string | number) {
       <!-- 3. 深度分析页面 -->
       <section v-else-if="activeTab === 'clean-c-deep'" class="page-container full-width">
         <div class="page-header">
-          <h1>查找大目录</h1>
-          <p>层级化查看 C 盘占用，锁定空间大户。</p>
-        </div>
-
-        <div class="advanced-actions">
-          <button class="btn-primary" @click="startFullDiskScan" :disabled="isFullScanning">
-            {{ isFullScanning ? '正在建立全盘索引...' : '开始深度分析' }}
-          </button>
+          <div class="header-info">
+            <h1>查找大目录</h1>
+            <p>层级化查看 C 盘占用，锁定空间大户。</p>
+          </div>
+          <div class="header-actions">
+            <button class="btn-primary btn-sm" @click="startFullDiskScan" :disabled="isFullScanning">
+              {{ isFullScanning ? '正在扫描...' : '开始深度分析' }}
+            </button>
+          </div>
         </div>
 
         <div class="tree-table-container shadow-card" v-if="treeData.length > 0 || isFullScanning">
@@ -715,25 +720,40 @@ body {
 /* --- 内容区 --- */
 .content { 
   flex: 1; 
-  padding: 48px 60px; 
+  padding: 40px 60px; 
   overflow-y: auto; 
   height: 100%;
 }
 /* 当处于全屏模式（深度分析）时，内容区本身不滚动，让内部树形滚动 */
 .content:has(.page-container.full-width) {
   overflow-y: hidden;
+  padding-bottom: 24px; /* 调小全屏模式下的底部留白 */
 }
 
-.page-container { max-width: 800px; margin: 0 auto; padding-bottom: 10px; transition: max-width 0.4s ease; }
+.page-container { max-width: 800px; margin: 0 auto; padding-bottom: 0px; transition: max-width 0.4s ease; }
 .page-container.full-width { 
   max-width: 1400px; 
-  height: calc(100vh - 96px); 
+  height: calc(100vh - 64px); /* 相应调整高度计算 */
   display: flex; 
   flex-direction: column; 
 }
-.page-header { margin-bottom: 40px; text-align: center; flex-shrink: 0; }
-.page-header h1 { font-size: 28px; font-weight: 700; margin-bottom: 8px; color: var(--text-main); }
-.page-header p { color: var(--text-sec); font-size: 15px; }
+.page-header { 
+  display: flex; 
+  align-items: flex-end; 
+  justify-content: space-between; 
+  margin-bottom: 16px; 
+  padding-bottom: 16px; 
+  border-bottom: 1px solid var(--border-color); 
+  flex-shrink: 0; 
+}
+.header-info {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+}
+.page-header h1 { font-size: 22px; font-weight: 700; margin-bottom: 0; color: var(--text-main); line-height: 1.2; }
+.page-header p { color: var(--text-sec); font-size: 13px; margin-bottom: 0; line-height: 1.2; }
+.header-actions { display: flex; align-items: center; }
 
 /* --- 按钮样式重构 --- */
 .btn-primary { 
@@ -749,6 +769,7 @@ body {
   box-shadow: var(--btn-shadow);
   flex-shrink: 0;
 }
+.btn-sm { padding: 8px 24px; font-size: 14px; border-radius: 10px; }
 .btn-primary:hover { background-color: var(--primary-hover); transform: translateY(-1.5px); box-shadow: 0 6px 16px rgba(0, 122, 255, 0.35); }
 .btn-primary:active { transform: translateY(0); }
 .btn-primary:disabled { background-color: #D1D1D6; box-shadow: none; cursor: not-allowed; transform: none; }
@@ -915,12 +936,12 @@ body {
 .detail-content li { margin-bottom: 8px; line-height: 1.4; }
 
 /* --- 磁盘树样式 --- */
-.advanced-actions { display: flex; justify-content: center; margin-bottom: 32px; flex-shrink: 0; }
+/* .advanced-actions { display: flex; justify-content: center; margin-bottom: 32px; flex-shrink: 0; } */
 .tree-table-container { 
   background: #fff; 
   border-radius: 24px; 
   overflow: hidden; 
-  margin-top: 32px; 
+  margin-top: 8px; 
   flex: 1;
   display: flex;
   flex-direction: column;