diff --git a/flask-dev-api/.idea/.gitignore b/flask-dev-api/.idea/.gitignore
new file mode 100644
index 0000000..13566b8
--- /dev/null
+++ b/flask-dev-api/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/flask-dev-api/.idea/flask-dev-api.iml b/flask-dev-api/.idea/flask-dev-api.iml
new file mode 100644
index 0000000..e118c1d
--- /dev/null
+++ b/flask-dev-api/.idea/flask-dev-api.iml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="Flask">
+    <option name="enabled" value="true" />
+  </component>
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/.venv" />
+    </content>
+    <orderEntry type="jdk" jdkName="Python 3.12" jdkType="Python SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+  <component name="PyDocumentationSettings">
+    <option name="format" value="PLAIN" />
+    <option name="myDocStringFormat" value="Plain" />
+  </component>
+  <component name="TemplatesService">
+    <option name="TEMPLATE_CONFIGURATION" value="Jinja2" />
+    <option name="TEMPLATE_FOLDERS">
+      <list>
+        <option value="$MODULE_DIR$/templates" />
+      </list>
+    </option>
+  </component>
+</module>
\ No newline at end of file
diff --git a/flask-dev-api/.idea/inspectionProfiles/Project_Default.xml b/flask-dev-api/.idea/inspectionProfiles/Project_Default.xml
new file mode 100644
index 0000000..0077c35
--- /dev/null
+++ b/flask-dev-api/.idea/inspectionProfiles/Project_Default.xml
@@ -0,0 +1,23 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="Eslint" enabled="true" level="WARNING" enabled_by_default="true" />
+    <inspection_tool class="PyPackageRequirementsInspection" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="ignoredPackages">
+        <value>
+          <list size="9">
+            <item index="0" class="java.lang.String" itemvalue="sentence_transformers" />
+            <item index="1" class="java.lang.String" itemvalue="fast_langdetect" />
+            <item index="2" class="java.lang.String" itemvalue="jieba_fast" />
+            <item index="3" class="java.lang.String" itemvalue="rotary_embedding_torch" />
+            <item index="4" class="java.lang.String" itemvalue="ko_pron" />
+            <item index="5" class="java.lang.String" itemvalue="pyopenjtalk" />
+            <item index="6" class="java.lang.String" itemvalue="g2p_en" />
+            <item index="7" class="java.lang.String" itemvalue="huggingface_hub" />
+            <item index="8" class="java.lang.String" itemvalue="x_transformers" />
+          </list>
+        </value>
+      </option>
+    </inspection_tool>
+  </profile>
+</component>
\ No newline at end of file
diff --git a/flask-dev-api/.idea/inspectionProfiles/profiles_settings.xml b/flask-dev-api/.idea/inspectionProfiles/profiles_settings.xml
new file mode 100644
index 0000000..105ce2d
--- /dev/null
+++ b/flask-dev-api/.idea/inspectionProfiles/profiles_settings.xml
@@ -0,0 +1,6 @@
+<component name="InspectionProjectProfileManager">
+  <settings>
+    <option name="USE_PROJECT_PROFILE" value="false" />
+    <version value="1.0" />
+  </settings>
+</component>
\ No newline at end of file
diff --git a/flask-dev-api/.idea/misc.xml b/flask-dev-api/.idea/misc.xml
new file mode 100644
index 0000000..db8786c
--- /dev/null
+++ b/flask-dev-api/.idea/misc.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Black">
+    <option name="sdkName" value="Python 3.12" />
+  </component>
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.12" project-jdk-type="Python SDK" />
+</project>
\ No newline at end of file
diff --git a/flask-dev-api/.idea/modules.xml b/flask-dev-api/.idea/modules.xml
new file mode 100644
index 0000000..5fc8ec9
--- /dev/null
+++ b/flask-dev-api/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/flask-dev-api.iml" filepath="$PROJECT_DIR$/.idea/flask-dev-api.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/flask-dev-api/.idea/vcs.xml b/flask-dev-api/.idea/vcs.xml
new file mode 100644
index 0000000..6c0b863
--- /dev/null
+++ b/flask-dev-api/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/flask-dev-api/.idea/webResources.xml b/flask-dev-api/.idea/webResources.xml
new file mode 100644
index 0000000..a629b2c
--- /dev/null
+++ b/flask-dev-api/.idea/webResources.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="WebResourcesPaths">
+    <contentEntries>
+      <entry url="file://$PROJECT_DIR$">
+        <entryData>
+          <resourceRoots>
+            <path value="file://$PROJECT_DIR$/config" />
+            <path value="file://$PROJECT_DIR$/static" />
+          </resourceRoots>
+        </entryData>
+      </entry>
+    </contentEntries>
+  </component>
+</project>
\ No newline at end of file
diff --git a/flask-dev-api/app.py b/flask-dev-api/app.py
index 76cdb3e..8d68b1c 100644
--- a/flask-dev-api/app.py
+++ b/flask-dev-api/app.py
@@ -15,7 +15,7 @@ from blueprints import pin_tu_bp, base64_bp, down_video_bp, fen_ci_bp, content_t
 from utils.stats_db import init_db, record_call, get_total_count, get_avg_duration, get_daily_counts, get_monthly_counts, get_available_years, get_available_months, get_daily_counts_by_month, get_hourly_counts, get_endpoint_stats, get_today_count, get_yesterday_count, get_month_count, get_success_rate, get_duration_distribution, get_slowest_endpoints, get_week_compare, get_recent_calls, get_active_days
 from utils.stats_db import ALLOWED_TABLES, get_table_info, get_table_rows, get_table_count, insert_row, update_row, delete_rows, clear_table
 
-TOOL_COUNT = 19
+TOOL_COUNT = 18
 
 
 def create_app():
diff --git a/flask-dev-api/config/audio_slicer_config.json b/flask-dev-api/config/audio_slicer_config.json
index 07633b0..bd14e3a 100644
--- a/flask-dev-api/config/audio_slicer_config.json
+++ b/flask-dev-api/config/audio_slicer_config.json
@@ -1,7 +1,7 @@
 {
   "threshold": -41,
   "min_length": 5000,
-  "min_interval": 300,
+  "min_interval": 500,
   "hop_size": 10,
   "max_sil_kept": 1000
 }
\ No newline at end of file
diff --git a/flask-dev-api/config/rvc_config.json b/flask-dev-api/config/rvc_config.json
index c19871c..a3f39c7 100644
--- a/flask-dev-api/config/rvc_config.json
+++ b/flask-dev-api/config/rvc_config.json
@@ -4,13 +4,13 @@
   "model_dir_mode": "absolute",
   "index_dir": "E:\\AI\\RVC\\rvc_con\\index",
   "index_dir_mode": "absolute",
-  "last_model": "",
-  "last_index": "",
+  "last_model": "bubu-sing.pth",
+  "last_index": "E:\\AI\\RVC\\rvc_con\\index\\bubu-sing_v2.index",
   "f0_up_key": 0,
   "f0_method": "rmvpe",
-  "index_rate": 0.75,
+  "index_rate": 1,
   "filter_radius": 3,
-  "resample_sr": 22050,
-  "rms_mix_rate": 0.25,
-  "protect": 0.33
+  "resample_sr": 32000,
+  "rms_mix_rate": 0.5,
+  "protect": 0.37
 }
\ No newline at end of file
diff --git a/flask-dev-api/stats.db b/flask-dev-api/stats.db
index e936fc2..54262d3 100644
Binary files a/flask-dev-api/stats.db and b/flask-dev-api/stats.db differ
diff --git a/flask-dev-api/templates/audio_slicer.html b/flask-dev-api/templates/audio_slicer.html
index f0a247a..723c4be 100644
--- a/flask-dev-api/templates/audio_slicer.html
+++ b/flask-dev-api/templates/audio_slicer.html
@@ -280,6 +280,56 @@
             position: absolute; top: 0; left: 0; width: 100%; height: 100%;
             border-radius: 8px; pointer-events: none;
         }
+        #segmentOverlay {
+            position: absolute; top: 0; left: 0; width: 100%; height: 100%;
+            border-radius: 8px; pointer-events: none; z-index: 1;
+        }
+        .seg-gray {
+            position: absolute; top: 0; height: 100%;
+            background: rgba(0,0,0,0.18); pointer-events: none;
+        }
+        #playCursor {
+            position: absolute; top: 0; height: 100%; width: 10px;
+            transform: translateX(-5px); z-index: 5;
+            pointer-events: auto; cursor: col-resize;
+            display: none;
+        }
+        #playCursor::after {
+            content: ''; position: absolute; left: 50%; top: 0; bottom: 0;
+            width: 2px; transform: translateX(-50%);
+            background: #e53935; box-shadow: 0 0 4px rgba(229,57,53,0.4);
+            pointer-events: none;
+        }
+        #cursorHandle {
+            position: absolute; left: 50%; top: -6px; transform: translateX(-50%);
+            width: 12px; height: 12px; border-radius: 50%;
+            background: #e53935; border: 2px solid #fff;
+            box-shadow: 0 1px 4px rgba(0,0,0,0.25);
+            pointer-events: none;
+        }
+        .player-controls {
+            display: flex; align-items: center; gap: 10px;
+            padding: 6px 12px; margin-top: 4px;
+            background: #fff; border: 1px solid #e0e0e0; border-radius: 8px;
+            font-size: 12px; color: #555;
+        }
+        .player-controls button {
+            width: 30px; height: 30px; border: none; border-radius: 50%;
+            background: #0078d4; color: #fff; cursor: pointer;
+            display: flex; align-items: center; justify-content: center;
+            font-size: 12px; transition: background 0.15s;
+        }
+        .player-controls button:hover { background: #005fa3; }
+        .player-controls .p-time { font-variant-numeric: tabular-nums; min-width: 36px; text-align: center; }
+        .player-controls input[type="range"] {
+            flex: 1; height: 4px; -webkit-appearance: none; appearance: none;
+            background: #e0e0e0; border-radius: 2px; outline: none; cursor: pointer;
+        }
+        .player-controls input[type="range"]::-webkit-slider-thumb {
+            -webkit-appearance: none; appearance: none;
+            width: 14px; height: 14px; border-radius: 50%;
+            background: #0078d4; cursor: pointer;
+        }
         .cut-marker {
             position: absolute; top: 0; width: 24px; height: 100%;
             transform: translateX(-50%); z-index: 2; cursor: grab;
@@ -431,6 +481,12 @@
             </div>
             <div id="timelineArea" style="display:none;">
                 <div class="timeline-wrap" id="timelineBar"></div>
+                <div class="player-controls" id="playerControls" style="display:none;">
+                    <button onclick="playerToggle()" title="播放/暂停"><i id="playerIcon" class="fas fa-play"></i></button>
+                    <span class="p-time" id="playerTime">0:00</span>
+                    <input type="range" id="playerSeekBar" min="0" max="1000" value="0" step="1">
+                    <span class="p-time" id="playerTotal">0:00</span>
+                </div>
                 <div id="redoWrap" style="display:none;text-align:center;margin-top:8px;">
                     <button class="action-btn slice" style="width:auto;padding:8px 20px;font-size:13px;" onclick="redoManualSlice()">
                         <i class="fas fa-redo"></i> 切割点已更改，点击重新切割
@@ -466,6 +522,14 @@
     let manualSegChanged = false; // 用户是否手动调整过勾选
     let manualSegInit = false;  // 新建预览时重置勾选
 
+    // 播放器状态
+    var playerAudio = null;
+    var playerPlaying = false;
+    var _playerRAF = null;
+    var _playerStartSec = 0;
+    var _playerEndSec = 0;
+    var _playerMode = 'full'; // 'full' 全曲 | 'seg' 片段
+
     function showMessage(text, type, duration) {
         type = type || 'info'; duration = duration || 3000;
         var t = document.createElement('div');
@@ -648,14 +712,6 @@
         document.getElementById('sliceList').innerHTML = html;
     }
 
-    function playPreviewSeg(index) {
-        if (!taskId || !window._previewRanges || !window._previewRanges[index]) return;
-        if (currentAudio) { currentAudio.pause(); currentAudio = null; }
-        var r = window._previewRanges[index];
-        var audio = new Audio('/audio-slicer/preview-range/' + taskId + '?start=' + r[0] + '&end=' + r[1]);
-        audio.play();
-        currentAudio = audio;
-    }
 
     function toggleSegment(idx) {
         var pos = selectedSegments.indexOf(idx);
@@ -696,6 +752,7 @@
         if (el) el.textContent = '已选 ' + selectedSegments.length + '/' + total;
         var btnSlice = document.getElementById('btnSlice');
         if (btnSlice) btnSlice.disabled = selectedSegments.length === 0;
+        _updateSegmentOverlay();
     }
 
     async function doSlice() {
@@ -790,13 +847,8 @@
         document.getElementById('sliceList').innerHTML = html;
     }
 
+
     var currentAudio = null;
-    function playSlice(index) {
-        if (currentAudio) { currentAudio.pause(); currentAudio = null; }
-        var audio = new Audio('/audio-slicer/download/' + taskId + '/' + index);
-        audio.play();
-        currentAudio = audio;
-    }
 
     function downloadSlice(index) {
         var a = document.createElement('a');
@@ -902,8 +954,6 @@
         // 新预览时重置勾选
         if (manualSegInit) {
             manualSegInit = false;
-            manualSegSelected = [];
-            manualSegChanged = false;
         }
 
         var html = '';
@@ -918,8 +968,8 @@
         }
 
         var boundaries = [0].concat(cutPoints).concat([audioDuration]);
-        // 确保勾选数组长度匹配
-        if (manualSegSelected.length !== boundaries.length - 1) {
+        // 仅初始化时全选；用户已手动调整勾选则保留
+        if (manualSegSelected.length !== boundaries.length - 1 && !manualSegChanged) {
             manualSegSelected = [];
             for (var j = 0; j < boundaries.length - 1; j++) manualSegSelected.push(j);
         }
@@ -965,13 +1015,6 @@
         markCutPointsChanged();
     }
 
-    var previewAudio = null;
-    function playPreview(start, end) {
-        if (!taskId) return;
-        if (previewAudio) { previewAudio.pause(); previewAudio = null; }
-        previewAudio = new Audio('/audio-slicer/preview-range/' + taskId + '?start=' + start + '&end=' + end);
-        previewAudio.play();
-    }
 
     function toggleManualSeg(idx) {
         var pos = manualSegSelected.indexOf(idx);
@@ -988,6 +1031,7 @@
         if (row) row.className = 'seg-row' + (pos < 0 ? ' selected' : ' dimmed');
         updateManualSegCount();
         updateManualBtn();
+        _updateSegmentOverlay();
     }
 
     function selectManualSegments() {
@@ -995,6 +1039,7 @@
         for (var i = 0; i < cutPoints.length + 1; i++) manualSegSelected.push(i);
         manualSegChanged = true;
         renderCutList();
+        _updateSegmentOverlay();
     }
 
 
@@ -1030,7 +1075,9 @@
 
         bar.className = readOnly ? 'readonly' : '';
 
-        var html = '<canvas id="waveformCanvas"></canvas>';
+        var html = '<canvas id="waveformCanvas"></canvas>'
+                 + '<div id="segmentOverlay"></div>'
+                 + '<div id="playCursor"><div id="cursorHandle"></div></div>';
         // 时间刻度（在波形条上方）
         var step = Math.max(1, Math.ceil(audioDuration / 10));
         for (var t = 0; t <= audioDuration; t += step) {
@@ -1050,20 +1097,62 @@
 
         // 绘制波形
         if (waveformPeaks) drawWaveform();
+        _updateSegmentOverlay();
 
-        if (readOnly) return; // 只读模式不绑定交互事件
+        // 播放控制条
+        var pc = document.getElementById('playerControls');
+        if (pc) { pc.style.display = audioDuration > 0 ? '' : 'none'; }
+        var pt = document.getElementById('playerTotal');
+        if (pt) pt.textContent = formatTime(audioDuration);
+        _showCursorAtCurrent();
 
-        // 时间轴空白区域点击 → 添加切割点
+        // 绑定事件（只绑一次）
         if (!bar._bound) {
             bar._bound = true;
+
+            // 时间轴点击：只读模式 → seek，手动模式 → 添加切割点
             bar.addEventListener('click', function(e) {
                 if (bar._suppressClick) { bar._suppressClick = false; return; }
-                if (bar.classList.contains('readonly')) return;
-                if (e.target.closest('.cut-marker')) return;
+                if (e.target.closest('.cut-marker') || e.target.closest('#playCursor')) return;
                 var rect = bar.getBoundingClientRect();
                 var sec = (e.clientX - rect.left) / rect.width * audioDuration;
+                if (bar.classList.contains('readonly')) {
+                    playerSeekTo(sec);
+                    return;
+                }
+                // 手动模式：不允许在灰色片段内添加切割点
+                var ranges = _getSegmentRanges();
+                var sel = _getSelectedSet();
+                if (ranges.length && sel.length) {
+                    for (var i = 0; i < ranges.length; i++) {
+                        if (sec >= ranges[i][0] && sec <= ranges[i][1]) {
+                            if (sel.indexOf(i) < 0) return;
+                            break;
+                        }
+                    }
+                }
                 if (sec > 0.5 && sec < audioDuration - 0.5) addCutPoint(sec);
             });
+
+            // 播放游标拖拽
+            _bindCursorDrag(bar);
+
+            // 进度条拖拽 seek
+            var seekBar = document.getElementById('playerSeekBar');
+            if (seekBar) {
+                seekBar.addEventListener('input', function() {
+                    var sec = (parseFloat(this.value) / 1000) * audioDuration;
+                    var cursor = document.getElementById('playCursor');
+                    var timeEl = document.getElementById('playerTime');
+                    if (cursor) { cursor.style.display = 'block'; cursor.style.left = (sec / audioDuration * 100).toFixed(2) + '%'; }
+                    if (timeEl) timeEl.textContent = formatTime(sec);
+                    if (playerAudio) {
+                        var rel = sec - _playerStartSec;
+                        var dur = _playerEndSec - _playerStartSec;
+                        if (rel >= 0 && rel <= dur) playerAudio.currentTime = rel;
+                    }
+                });
+            }
         }
 
         // 为每个标记绑定拖动
@@ -1099,6 +1188,245 @@
         }
     }
 
+    // ── 片段灰色覆盖（取消选中的片段变灰） ──
+    function _getSegmentRanges() {
+        // 手动模式：从 cutPoints 计算
+        if (cutMode === 'manual') {
+            if (cutPoints.length > 0) {
+                var b = [0].concat(cutPoints.slice().sort(function(a,b){return a-b;})).concat([audioDuration]);
+                var ranges = [];
+                for (var i = 0; i < b.length - 1; i++) ranges.push([b[i], b[i+1]]);
+                return ranges;
+            }
+            return [];
+        }
+        // 自动模式：用预览区间
+        if (window._previewRanges && window._previewRanges.length) {
+            return window._previewRanges;
+        }
+        return [];
+    }
+
+    function _getSelectedSet() {
+        if (manualSegSelected && manualSegSelected.length > 0 && cutPoints.length > 0) {
+            return manualSegSelected;
+        }
+        return selectedSegments;
+    }
+
+    function _updateSegmentOverlay() {
+        var overlay = document.getElementById('segmentOverlay');
+        if (!overlay || audioDuration <= 0) return;
+        var ranges = _getSegmentRanges();
+        if (!ranges.length) { overlay.innerHTML = ''; return; }
+        var sel = _getSelectedSet();
+        var html = '';
+        for (var i = 0; i < ranges.length; i++) {
+            if (sel.indexOf(i) < 0) {
+                var left = (ranges[i][0] / audioDuration * 100).toFixed(2);
+                var width = ((ranges[i][1] - ranges[i][0]) / audioDuration * 100).toFixed(2);
+                html += '<div class="seg-gray" style="left:' + left + '%;width:' + width + '%;"></div>';
+            }
+        }
+        overlay.innerHTML = html;
+    }
+
+    // ── 播放器系统 ──
+    function _showCursorAtCurrent() {
+        var cursor = document.getElementById('playCursor');
+        if (!cursor) return;
+        if (playerAudio) {
+            var sec = _playerStartSec + playerAudio.currentTime;
+            cursor.style.left = (sec / audioDuration * 100).toFixed(2) + '%';
+        }
+    }
+
+    function _playerTick() {
+        var cursor = document.getElementById('playCursor');
+        var timeEl = document.getElementById('playerTime');
+        if (!playerAudio || !cursor) return;
+        var sec = _playerStartSec + playerAudio.currentTime;
+        cursor.style.left = (sec / audioDuration * 100).toFixed(2) + '%';
+        if (timeEl) timeEl.textContent = formatTime(sec);
+        var seekBar = document.getElementById('playerSeekBar');
+        if (seekBar && audioDuration > 0) seekBar.value = (sec / audioDuration * 1000).toFixed(0);
+        _playerRAF = requestAnimationFrame(_playerTick);
+    }
+
+    function playerStartTick() {
+        playerStopTick();
+        var cursor = document.getElementById('playCursor');
+        if (cursor) cursor.style.display = 'block';
+        _playerRAF = requestAnimationFrame(_playerTick);
+    }
+
+    function playerStopTick() {
+        if (_playerRAF) { cancelAnimationFrame(_playerRAF); _playerRAF = null; }
+    }
+
+    function playerSeekTo(sec) {
+        sec = Math.max(0, Math.min(audioDuration, sec));
+        var cursor = document.getElementById('playCursor');
+        var timeEl = document.getElementById('playerTime');
+        if (cursor) {
+            cursor.style.display = 'block';
+            cursor.style.left = (sec / audioDuration * 100).toFixed(2) + '%';
+        }
+        if (timeEl) timeEl.textContent = formatTime(sec);
+        if (playerAudio && !playerAudio.paused) {
+            var rel = sec - _playerStartSec;
+            if (rel >= 0 && rel <= _playerEndSec - _playerStartSec) {
+                playerAudio.currentTime = rel;
+            }
+        }
+    }
+
+    function playerToggle() {
+        if (playerPlaying) {
+            playerPause();
+        } else {
+            playerPlay();
+        }
+    }
+
+    function playerPlay() {
+        if (!taskId || audioDuration <= 0) return;
+        if (playerAudio && !playerAudio.paused) return;
+        // 恢复暂停的音频
+        if (playerAudio && playerAudio.paused && playerAudio.currentTime > 0 && playerAudio.duration > 0) {
+            playerAudio.play();
+            playerPlaying = true;
+            playerStartTick();
+            _updatePlayerIcon();
+            return;
+        }
+        // 新建全曲播放
+        _playerStopAll();
+        _playerMode = 'full';
+        _playerStartSec = 0;
+        _playerEndSec = audioDuration;
+        playerAudio = new Audio('/audio-slicer/preview-range/' + taskId + '?start=0&end=' + audioDuration);
+        playerAudio.addEventListener('ended', function() {
+            playerPlaying = false;
+            playerStopTick();
+            _updatePlayerIcon();
+        });
+        playerAudio.play();
+        playerPlaying = true;
+        playerStartTick();
+        _updatePlayerIcon();
+    }
+
+    function playerPause() {
+        if (playerAudio) playerAudio.pause();
+        playerPlaying = false;
+        playerStopTick();
+        _updatePlayerIcon();
+    }
+
+    function _playerStopAll() {
+        playerStopTick();
+        if (playerAudio) {
+            playerAudio.pause();
+            playerAudio.src = '';
+            playerAudio = null;
+        }
+        playerPlaying = false;
+        _updatePlayerIcon();
+        if (currentAudio) { currentAudio.pause(); currentAudio = null; }
+    }
+
+    function _updatePlayerIcon() {
+        var icon = document.getElementById('playerIcon');
+        if (icon) icon.className = playerPlaying ? 'fas fa-pause' : 'fas fa-play';
+    }
+
+    // 播放片段（自动模式列表按钮）
+    function playPreviewSeg(index) {
+        if (!taskId || !window._previewRanges || !window._previewRanges[index]) return;
+        _playerStopAll();
+        var r = window._previewRanges[index];
+        _playerMode = 'seg';
+        _playerStartSec = r[0];
+        _playerEndSec = r[1];
+        playerAudio = new Audio('/audio-slicer/preview-range/' + taskId + '?start=' + r[0] + '&end=' + r[1]);
+        playerAudio.addEventListener('ended', function() {
+            playerPlaying = false;
+            playerStopTick();
+            _updatePlayerIcon();
+        });
+        playerAudio.play();
+        playerPlaying = true;
+        playerStartTick();
+        _updatePlayerIcon();
+    }
+
+    // 播放片段（手动模式列表按钮）
+    function playPreview(start, end) {
+        if (!taskId) return;
+        _playerStopAll();
+        _playerMode = 'seg';
+        _playerStartSec = start;
+        _playerEndSec = end;
+        playerAudio = new Audio('/audio-slicer/preview-range/' + taskId + '?start=' + start + '&end=' + end);
+        playerAudio.addEventListener('ended', function() {
+            playerPlaying = false;
+            playerStopTick();
+            _updatePlayerIcon();
+        });
+        playerAudio.play();
+        playerPlaying = true;
+        playerStartTick();
+        _updatePlayerIcon();
+    }
+
+    // 播放已切片结果
+    function playSlice(index) {
+        _playerStopAll();
+        var audio = new Audio('/audio-slicer/download/' + taskId + '/' + index);
+        audio.play();
+        currentAudio = audio;
+    }
+
+    // 游标拖拽
+    function _bindCursorDrag(bar) {
+        var cursor = document.getElementById('playCursor');
+        if (!cursor) return;
+        var dragging = false;
+
+        cursor.addEventListener('pointerdown', function(e) {
+            e.preventDefault();
+            e.stopPropagation();
+            dragging = true;
+            cursor.setPointerCapture(e.pointerId);
+        });
+
+        cursor.addEventListener('pointermove', function(e) {
+            if (!dragging) return;
+            var rect = bar.getBoundingClientRect();
+            var sec = (e.clientX - rect.left) / rect.width * audioDuration;
+            sec = Math.max(0, Math.min(audioDuration, sec));
+            cursor.style.left = (sec / audioDuration * 100).toFixed(2) + '%';
+            var timeEl = document.getElementById('playerTime');
+            if (timeEl) timeEl.textContent = formatTime(sec);
+            // 同步 audio currentTime
+            if (playerAudio) {
+                var rel = sec - _playerStartSec;
+                var dur = _playerEndSec - _playerStartSec;
+                if (rel >= 0 && rel <= dur) {
+                    playerAudio.currentTime = rel;
+                }
+            }
+        });
+
+        cursor.addEventListener('pointerup', function(e) {
+            if (!dragging) return;
+            dragging = false;
+            cursor.releasePointerCapture(e.pointerId);
+            bar._suppressClick = true;
+        });
+    }
+
     async function loadWaveform() {
         if (!taskId) return;
         try {