diff --git a/public/css/style.css b/public/css/style.css
index 378fc44..a6e8646 100644
--- a/public/css/style.css
+++ b/public/css/style.css
@@ -728,6 +728,11 @@ header p {
     line-height: 1;
 }
 
+.square-btn {
+    letter-spacing: -0.1em;
+    font-size: 0.82rem;
+}
+
 .control-btn:hover {
     transform: translateY(-1px);
     background: rgba(51, 65, 85, 0.95);
@@ -740,6 +745,37 @@ header p {
     transform: none;
 }
 
+.control-popover {
+    position: relative;
+    display: inline-flex;
+    align-items: center;
+}
+
+.popover-panel {
+    position: absolute;
+    left: 50%;
+    bottom: calc(100% + 0.55rem);
+    transform: translateX(-50%) translateY(6px);
+    opacity: 0;
+    pointer-events: none;
+    transition: opacity 0.18s ease, transform 0.18s ease;
+    padding: 0.55rem 0.6rem;
+    border-radius: 12px;
+    border: 1px solid rgba(148, 163, 184, 0.18);
+    background: rgba(15, 23, 42, 0.96);
+    box-shadow: 0 12px 24px rgba(2, 6, 23, 0.34);
+    backdrop-filter: blur(12px);
+    z-index: 20;
+    white-space: nowrap;
+}
+
+.control-popover:hover .popover-panel,
+.control-popover:focus-within .popover-panel {
+    opacity: 1;
+    pointer-events: auto;
+    transform: translateX(-50%) translateY(0);
+}
+
 .volume-control {
     display: flex;
     align-items: center;
@@ -760,23 +796,11 @@ header p {
     font-variant-numeric: tabular-nums;
 }
 
-.progress-chip {
-    display: inline-flex;
-    align-items: center;
-    padding: 0.34rem 0.55rem;
-    border-radius: 999px;
-    background: rgba(15, 23, 42, 0.7);
-    border: 1px solid rgba(148, 163, 184, 0.16);
-    color: rgba(226, 232, 240, 0.92);
-    font-size: 0.76rem;
-    font-weight: 600;
-    white-space: nowrap;
-}
-
 .speed-control {
-    display: inline-flex;
-    align-items: center;
-    gap: 0.4rem;
+    display: flex;
+    flex-direction: column;
+    align-items: flex-start;
+    gap: 0.45rem;
     color: rgba(226, 232, 240, 0.88);
     font-size: 0.8rem;
     font-weight: 600;
@@ -803,11 +827,21 @@ header p {
     cursor: pointer;
 }
 
-.seek-bar-progress {
+.seek-bar-transcode {
+    position: absolute;
+    inset: 0 auto 0 0;
     width: 0%;
     height: 100%;
     border-radius: 999px;
-    background: linear-gradient(90deg, #38bdf8, #2563eb);
+    background: linear-gradient(90deg, rgba(59, 130, 246, 0.45), rgba(37, 99, 235, 0.82));
+}
+
+.seek-bar-progress {
+    position: relative;
+    width: 0%;
+    height: 100%;
+    border-radius: 999px;
+    background: linear-gradient(90deg, #f8fafc, #dbeafe);
 }
 
 .seek-bar-handle {
diff --git a/public/index.html b/public/index.html
index 21292f9..2809741 100644
--- a/public/index.html
+++ b/public/index.html
@@ -132,35 +132,43 @@
                             <span class="status-dot"></span>
                             <span id="playback-status-text">Paused</span>
                         </div>
-                        <div id="transcode-progress-chip" class="progress-chip">Transcode 0%</div>
-                        <div id="playback-progress-chip" class="progress-chip">Play 0%</div>
-                        <button id="control-mute-toggle" class="control-btn" type="button">Mute</button>
-                        <div class="volume-control">
-                            <input id="volume-slider" class="volume-slider" type="range" min="0" max="1" step="0.05" value="1" />
-                            <span id="volume-value" class="volume-value">100%</span>
+                        <div class="control-popover volume-popover">
+                            <button id="control-mute-toggle" class="control-btn icon-btn" type="button" aria-label="Mute">o</button>
+                            <div class="popover-panel">
+                                <div class="volume-control">
+                                    <input id="volume-slider" class="volume-slider" type="range" min="0" max="1" step="0.05" value="1" />
+                                    <span id="volume-value" class="volume-value">100%</span>
+                                </div>
+                            </div>
                         </div>
                     </div>
                     <div id="custom-seek-container" class="control-seek hidden">
                         <span id="seek-current-time" class="control-time">00:00:00</span>
                         <div id="seek-bar" class="seek-bar">
+                            <div id="seek-bar-transcode" class="seek-bar-transcode"></div>
                             <div id="seek-bar-progress" class="seek-bar-progress"></div>
                             <div id="seek-bar-handle" class="seek-bar-handle"></div>
                         </div>
                         <span id="seek-total-time" class="control-time">00:00:00</span>
                     </div>
                     <div class="controls-right">
-                        <label class="speed-control" for="playback-speed">
-                            <span>Speed</span>
-                            <select id="playback-speed" class="speed-select">
-                                <option value="0.5">0.5x</option>
-                                <option value="0.75">0.75x</option>
-                                <option value="1" selected>1x</option>
-                                <option value="1.25">1.25x</option>
-                                <option value="1.5">1.5x</option>
-                                <option value="2">2x</option>
-                            </select>
-                        </label>
-                        <button id="control-fullscreen-toggle" class="control-btn" type="button">Fullscreen</button>
+                        <div class="control-popover speed-popover">
+                            <button id="control-speed-toggle" class="control-btn" type="button" aria-label="Playback Speed">1x</button>
+                            <div class="popover-panel">
+                                <label class="speed-control" for="playback-speed">
+                                    <span>Speed</span>
+                                    <select id="playback-speed" class="speed-select">
+                                        <option value="0.5">0.5x</option>
+                                        <option value="0.75">0.75x</option>
+                                        <option value="1" selected>1x</option>
+                                        <option value="1.25">1.25x</option>
+                                        <option value="1.5">1.5x</option>
+                                        <option value="2">2x</option>
+                                    </select>
+                                </label>
+                            </div>
+                        </div>
+                        <button id="control-fullscreen-toggle" class="control-btn icon-btn square-btn" type="button" aria-label="Fullscreen">[]</button>
                     </div>
                 </div>
                 <div id="now-playing" class="now-playing hidden">
diff --git a/public/js/main.js b/public/js/main.js
index 1f8d1d2..8edaaa2 100644
--- a/public/js/main.js
+++ b/public/js/main.js
@@ -26,13 +26,12 @@ document.addEventListener('DOMContentLoaded', () => {
     const controlPlayToggle = document.getElementById('control-play-toggle');
     const controlMuteToggle = document.getElementById('control-mute-toggle');
     const controlFullscreenToggle = document.getElementById('control-fullscreen-toggle');
+    const controlSpeedToggle = document.getElementById('control-speed-toggle');
     const volumeSlider = document.getElementById('volume-slider');
     const volumeValue = document.getElementById('volume-value');
     const playbackStatus = document.getElementById('playback-status');
     const playbackStatusText = document.getElementById('playback-status-text');
     const playbackSpeed = document.getElementById('playback-speed');
-    const transcodeProgressChip = document.getElementById('transcode-progress-chip');
-    const playbackProgressChip = document.getElementById('playback-progress-chip');
 
     // Download phase elements
     const downloadPhase = document.getElementById('download-phase');
@@ -53,6 +52,7 @@ document.addEventListener('DOMContentLoaded', () => {
     // Custom seek bar elements
     const customSeekContainer = document.getElementById('custom-seek-container');
     const seekBar = document.getElementById('seek-bar');
+    const seekBarTranscode = document.getElementById('seek-bar-transcode');
     const seekBarProgress = document.getElementById('seek-bar-progress');
     const seekBarHandle = document.getElementById('seek-bar-handle');
     const seekCurrentTime = document.getElementById('seek-current-time');
@@ -159,27 +159,28 @@ document.addEventListener('DOMContentLoaded', () => {
             volumeValue.textContent = `${Math.round(effectiveVolume * 100)}%`;
         }
         if (controlMuteToggle) {
-            controlMuteToggle.textContent = effectiveVolume === 0 ? 'Unmute' : 'Mute';
+            controlMuteToggle.textContent = effectiveVolume === 0 ? 'x' : 'o';
+            controlMuteToggle.setAttribute('aria-label', effectiveVolume === 0 ? 'Unmute' : 'Mute');
         }
     };
 
     const updateFullscreenControls = () => {
         if (controlFullscreenToggle) {
-            controlFullscreenToggle.textContent = document.fullscreenElement ? 'Exit Fullscreen' : 'Fullscreen';
+            controlFullscreenToggle.textContent = '[]';
+            controlFullscreenToggle.setAttribute('aria-label', document.fullscreenElement ? 'Exit Fullscreen' : 'Fullscreen');
         }
     };
 
-    const updatePlaybackProgressChip = (absoluteTime = 0) => {
-        if (!playbackProgressChip) return;
-        const safeDuration = videoDuration > 0 ? videoDuration : 0;
-        const percent = safeDuration > 0 ? Math.min(Math.max(Math.round((absoluteTime / safeDuration) * 100), 0), 100) : 0;
-        playbackProgressChip.textContent = `Play ${percent}%`;
+    const updateSpeedControls = () => {
+        if (controlSpeedToggle && playbackSpeed) {
+            controlSpeedToggle.textContent = playbackSpeed.value === '1' ? '1x' : playbackSpeed.value;
+        }
     };
 
-    const updateTranscodeProgressChip = (percent = 0, label = 'Transcode') => {
-        if (!transcodeProgressChip) return;
+    const updateTranscodeProgressBar = (percent = 0) => {
+        if (!seekBarTranscode) return;
         const safePercent = Math.min(Math.max(Math.round(percent || 0), 0), 100);
-        transcodeProgressChip.textContent = `${label} ${safePercent}%`;
+        seekBarTranscode.style.width = `${safePercent}%`;
     };
 
     const showCustomControls = () => {
@@ -254,7 +255,6 @@ document.addEventListener('DOMContentLoaded', () => {
                 if (seekTotalTime) seekTotalTime.textContent = formatTime(videoDuration);
                 showSeekBar();
                 updateSeekBarPosition(seekOffset + (videoPlayer.currentTime || 0));
-                updatePlaybackProgressChip(seekOffset + (videoPlayer.currentTime || 0));
             }
             if (message.type === 'progress') {
                 handleProgress(message.progress);
@@ -275,7 +275,7 @@ document.addEventListener('DOMContentLoaded', () => {
         if (status === 'downloading') {
             showDownloadPhase();
             const percent = Math.min(Math.max(Math.round(progress.percent || 0), 0), 100);
-            updateTranscodeProgressChip(percent, 'Download');
+            updateTranscodeProgressBar(percent);
             const downloaded = formatBytes(progress.downloadedBytes || 0);
             const total = formatBytes(progress.totalBytes || 0);
             downloadSizeText.textContent = `${downloaded} / ${total}`;
@@ -283,7 +283,7 @@ document.addEventListener('DOMContentLoaded', () => {
             downloadProgressFill.style.width = `${percent}%`;
         } else if (status === 'downloaded') {
             showDownloadPhase();
-            updateTranscodeProgressChip(100, 'Download');
+            updateTranscodeProgressBar(100);
             const downloaded = formatBytes(progress.downloadedBytes || progress.totalBytes || 0);
             const total = formatBytes(progress.totalBytes || 0);
             downloadSizeText.textContent = `${downloaded} / ${total} — 下载完成`;
@@ -295,7 +295,7 @@ document.addEventListener('DOMContentLoaded', () => {
         } else if (status === 'transcoding') {
             showTranscodePhase();
             const percent = Math.min(Math.max(Math.round(progress.percent || 0), 0), 100);
-            updateTranscodeProgressChip(percent, 'Transcode');
+            updateTranscodeProgressBar(percent);
             transcodeProgressText.textContent = `${percent}%`;
             transcodeProgressFill.style.width = `${percent}%`;
             transcodeDetailText.textContent = progress.details || 'FFmpeg 转码中...';
@@ -308,16 +308,16 @@ document.addEventListener('DOMContentLoaded', () => {
             }
         } else if (status === 'finished') {
             showTranscodePhase();
-            updateTranscodeProgressChip(100, 'Transcode');
+            updateTranscodeProgressBar(100);
             transcodeProgressText.textContent = '100%';
             transcodeProgressFill.style.width = '100%';
             transcodeDetailText.textContent = '转码完成';
         } else if (status === 'failed') {
-            updateTranscodeProgressChip(progress.percent || 0, 'Failed');
+            updateTranscodeProgressBar(progress.percent || 0);
             transcodeDetailText.textContent = `失败: ${progress.details || '未知错误'}`;
             transcodeProgressFill.style.background = 'linear-gradient(90deg, #dc2626, #b91c1c)';
         } else if (status === 'cancelled') {
-            updateTranscodeProgressChip(0, 'Stopped');
+            updateTranscodeProgressBar(0);
             transcodeDetailText.textContent = '已取消';
             transcodeProgressFill.style.width = '0%';
         }
@@ -350,8 +350,7 @@ document.addEventListener('DOMContentLoaded', () => {
         if (statFps) statFps.textContent = '';
         if (statBitrate) statBitrate.textContent = '';
         if (statTime) statTime.textContent = '';
-        updateTranscodeProgressChip(0, 'Transcode');
-        updatePlaybackProgressChip(0);
+        updateTranscodeProgressBar(0);
 
         if (stopTranscodeBtn) {
             stopTranscodeBtn.classList.add('hidden');
@@ -377,7 +376,6 @@ document.addEventListener('DOMContentLoaded', () => {
         seekBarProgress.style.width = `${ratio * 100}%`;
         seekBarHandle.style.left = `${ratio * 100}%`;
         seekCurrentTime.textContent = formatTime(absoluteTime);
-        updatePlaybackProgressChip(absoluteTime);
     };
 
     // Track playback position in the custom seek bar
@@ -1048,6 +1046,7 @@ document.addEventListener('DOMContentLoaded', () => {
         playbackSpeed.addEventListener('change', (event) => {
             const nextRate = Math.max(0.25, Math.min(4, parseFloat(event.target.value) || 1));
             videoPlayer.playbackRate = nextRate;
+            updateSpeedControls();
             revealPlaybackChrome();
             schedulePlaybackChromeHide();
         });
@@ -1103,8 +1102,8 @@ document.addEventListener('DOMContentLoaded', () => {
     updatePlayControls();
     updateVolumeControls();
     updateFullscreenControls();
-    updateTranscodeProgressChip(0, 'Transcode');
-    updatePlaybackProgressChip(0);
+    updateSpeedControls();
+    updateTranscodeProgressBar(0);
 
     // Bind events
     refreshBtn.addEventListener('click', () => fetchVideos(selectedBucket));