diff --git a/src/App.vue b/src/App.vue
index d99fb06..fa1e920 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -547,8 +547,6 @@ async function handleVoiceQueryComplete(text: string) {
 .app-wrapper {
   width: 100%;
   height: 100%;
-  max-width: 1080px;
-  margin: 0 auto;
   position: relative;
   overflow: hidden;
   background: #0a0e1a;
@@ -558,10 +556,12 @@ async function handleVoiceQueryComplete(text: string) {
 /* 全屏数字人 */
 .human-fullscreen {
   position: absolute;
-  inset: 0;
-  display: flex;
-  justify-content: center;
-  align-items: center;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  width: 100%;
+  height: 100%;
   z-index: 0;
 }
 
@@ -1222,9 +1222,6 @@ async function handleVoiceQueryComplete(text: string) {
 
 /* 平板/大屏 (769px+) */
 @media (min-width: 769px) {
-  .app-wrapper {
-    max-width: 1080px;
-  }
 }
 
 /* 横屏模式 */
diff --git a/src/components/SubtitlePanel.vue b/src/components/SubtitlePanel.vue
index 53fba0f..806e831 100644
--- a/src/components/SubtitlePanel.vue
+++ b/src/components/SubtitlePanel.vue
@@ -584,7 +584,7 @@ const scrollToBottom = () => {
   left: 0;
   min-width: 180px;
   background: rgba(20, 25, 50, 0.97);
-  backdrop-filter: blur(24px);
+  backdrop-filter: blur(12px);
   border: 1px solid rgba(255, 255, 255, 0.12);
   border-radius: 12px;
   padding: 6px;
@@ -691,7 +691,7 @@ const scrollToBottom = () => {
   border: 1px solid rgba(108, 140, 255, 0.06);
   border-radius: 8px;
   padding: 8px 12px;
-  backdrop-filter: blur(4px);
+  backdrop-filter: blur(1px);
   transition: all 0.3s ease;
   position: relative;
 
diff --git a/src/style.css b/src/style.css
index 98037cb..4b85988 100644
--- a/src/style.css
+++ b/src/style.css
@@ -18,9 +18,6 @@ html, body {
 #app {
   width: 100%;
   height: 100%;
-  display: flex;
-  justify-content: center;
-  align-items: center;
 }
 
 :root {