diff --git a/public/css/style.css b/public/css/style.css
index af35e7d..504cfe5 100644
--- a/public/css/style.css
+++ b/public/css/style.css
@@ -1045,13 +1045,21 @@ header p {
     display: none;
 }
 
-.play-btn {
+.now-playing-actions {
+    display: flex;
+    gap: 0.5rem;
     margin-top: 1rem;
-    padding: 0.85rem 1.25rem;
+    align-items: center;
+    flex-wrap: wrap;
+}
+
+.play-btn {
+    padding: 0.75rem 1.25rem;
     border: none;
     border-radius: 999px;
     background: var(--accent);
     color: #fff;
+    font-size: 0.92rem;
     font-weight: 700;
     cursor: pointer;
     transition: transform 0.2s ease, background 0.2s ease;
diff --git a/public/index.html b/public/index.html
index 873bc93..de0caa4 100644
--- a/public/index.html
+++ b/public/index.html
@@ -139,11 +139,11 @@
                 <div id="now-playing" class="now-playing hidden">
                     <h3>Now Playing</h3>
                     <p id="current-video-title">video.mp4</p>
-                    <div style="display: flex; gap: 0.5rem; margin-top: 1rem; align-items: center; flex-wrap: wrap;">
-                        <button id="transcode-btn" class="play-btn hidden">Start Transcode</button>
-                        <button id="stop-transcode-btn" class="play-btn stop-btn hidden">Stop Transcode</button>
-                        <button id="clear-playing-download-cache-btn" class="action-btn danger hidden">清空下载缓存</button>
-                        <button id="clear-playing-transcode-cache-btn" class="action-btn danger hidden">清空转码缓存</button>
+                    <div class="now-playing-actions">
+                        <button id="transcode-btn" class="play-btn hidden">开始播放</button>
+                        <button id="stop-transcode-btn" class="play-btn stop-btn hidden">停止播放</button>
+                        <button id="clear-playing-download-cache-btn" class="play-btn stop-btn hidden">清空下载缓存</button>
+                        <button id="clear-playing-transcode-cache-btn" class="play-btn stop-btn hidden">清空转码缓存</button>
                     </div>
                 </div>
             </section>
diff --git a/public/js/main.js b/public/js/main.js
index 5668a1f..383991c 100644
--- a/public/js/main.js
+++ b/public/js/main.js
@@ -381,7 +381,7 @@ document.addEventListener('DOMContentLoaded', () => {
         if (stopTranscodeBtn) {
             stopTranscodeBtn.classList.add('hidden');
             stopTranscodeBtn.disabled = false;
-            stopTranscodeBtn.textContent = 'Stop Transcode';
+            stopTranscodeBtn.textContent = '停止播放';
         }
     };
 
@@ -862,13 +862,13 @@ document.addEventListener('DOMContentLoaded', () => {
 
         if (transcodeBtn) {
             transcodeBtn.disabled = false;
-            transcodeBtn.textContent = 'Start Transcode';
+            transcodeBtn.textContent = '开始播放';
             transcodeBtn.classList.remove('hidden');
         }
         if (stopTranscodeBtn) {
             stopTranscodeBtn.classList.add('hidden');
             stopTranscodeBtn.disabled = false;
-            stopTranscodeBtn.textContent = 'Stop Transcode';
+            stopTranscodeBtn.textContent = '停止播放';
         }
         
         if (clearPlayingDownloadBtn) {
@@ -897,12 +897,12 @@ document.addEventListener('DOMContentLoaded', () => {
         if (!selectedKey) return;
         if (transcodeBtn) {
             transcodeBtn.disabled = true;
-            transcodeBtn.textContent = 'Starting...';
+            transcodeBtn.textContent = '播放中...';
         }
         if (stopTranscodeBtn) {
             stopTranscodeBtn.classList.remove('hidden');
             stopTranscodeBtn.disabled = false;
-            stopTranscodeBtn.textContent = 'Stop Transcode';
+            stopTranscodeBtn.textContent = '停止播放';
         }
         stopPolling();
         resetPhases();
@@ -983,7 +983,7 @@ document.addEventListener('DOMContentLoaded', () => {
     const stopTranscode = async () => {
         if (!currentVideoKey || !stopTranscodeBtn) return;
         stopTranscodeBtn.disabled = true;
-        stopTranscodeBtn.textContent = 'Stopping...';
+        stopTranscodeBtn.textContent = '停止中...';
 
         try {
             const res = await fetch('/api/stop-transcode', {
@@ -1009,17 +1009,17 @@ document.addEventListener('DOMContentLoaded', () => {
             updatePlayControls();
             if (transcodeBtn) {
                 transcodeBtn.disabled = false;
-                transcodeBtn.textContent = 'Start Transcode';
+                transcodeBtn.textContent = '开始播放';
                 transcodeBtn.classList.remove('hidden');
             }
             stopTranscodeBtn.classList.add('hidden');
         } catch (err) {
             console.error('Stop transcode failed:', err);
-            alert(`Stop transcode failed: ${err.message}`);
+            alert(`停止播放失败: ${err.message}`);
         } finally {
             if (stopTranscodeBtn) {
                 stopTranscodeBtn.disabled = false;
-                stopTranscodeBtn.textContent = 'Stop Transcode';
+                stopTranscodeBtn.textContent = '停止播放';
             }
         }
     };