diff --git a/app/src/main/java/io/legado/app/constant/PreferKey.kt b/app/src/main/java/io/legado/app/constant/PreferKey.kt
index 0c73e47e6..2ba8f7307 100644
--- a/app/src/main/java/io/legado/app/constant/PreferKey.kt
+++ b/app/src/main/java/io/legado/app/constant/PreferKey.kt
@@ -94,6 +94,8 @@ object PreferKey {
     const val defaultCoverDark = "defaultCoverDark"
     const val replaceEnableDefault = "replaceEnableDefault"
     const val showBrightnessView = "showBrightnessView"
+    const val useUnderline = "useUnderline"
+    const val adaptSpecialStyle = "adaptSpecialStyle"
     const val autoClearExpired = "autoClearExpired"
     const val autoChangeSource = "autoChangeSource"
     const val importKeepName = "importKeepName"
@@ -174,6 +176,8 @@ object PreferKey {
     const val cAccent = "colorAccent"
     const val customMode = "customMode"
     const val paletteStyle = "paletteStyle"
+    const val composeEngine = "composeEngine"
+    const val containerOpacity = "containerOpacity"
     const val enableBlur = "enableBlur"
     const val cBackground = "colorBackground"
     const val cBBackground = "colorBottomBackground"
diff --git a/app/src/main/java/io/legado/app/help/config/AppConfig.kt b/app/src/main/java/io/legado/app/help/config/AppConfig.kt
index a48009e5c..6ac1272d7 100644
--- a/app/src/main/java/io/legado/app/help/config/AppConfig.kt
+++ b/app/src/main/java/io/legado/app/help/config/AppConfig.kt
@@ -53,14 +53,26 @@ object AppConfig : SharedPreferences.OnSharedPreferenceChangeListener {
 
     var themeMode = appCtx.getPrefString(PreferKey.themeMode, "0")
     var AppTheme = appCtx.getPrefString(PreferKey.appTheme, "0")
+    var containerOpacity = appCtx.getPrefInt(PreferKey.containerOpacity, 100)
     var useDefaultCover = appCtx.getPrefBoolean(PreferKey.useDefaultCover, false)
     var optimizeRender = CanvasRecorderFactory.isSupport
             && appCtx.getPrefBoolean(PreferKey.optimizeRender, false)
     var recordLog = appCtx.getPrefBoolean(PreferKey.recordLog)
+
+    // -- lyc 版本特性 --
+    var adaptSpecialStyle = appCtx.getPrefBoolean(PreferKey.adaptSpecialStyle, true)
+    var useUnderline = appCtx.getPrefBoolean(PreferKey.useUnderline, false)
+
     var webServiceAutoStart = appCtx.getPrefBoolean(PreferKey.webServiceAutoStart)
     override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String?) {
         when (key) {
 
+            PreferKey.adaptSpecialStyle -> adaptSpecialStyle =
+                appCtx.getPrefBoolean(PreferKey.adaptSpecialStyle, true)
+
+            PreferKey.useUnderline -> useUnderline =
+                appCtx.getPrefBoolean(PreferKey.useUnderline, false)
+
             PreferKey.appTheme -> {
                 AppTheme = appCtx.getPrefString(PreferKey.appTheme, "0")
             }
@@ -973,16 +985,6 @@ object AppConfig : SharedPreferences.OnSharedPreferenceChangeListener {
             appCtx.putPrefBoolean(PreferKey.sliderVibrator, value)
         }
 
-    val audioPreDownloadNum: Int
-        get() = appCtx.getPrefInt(PreferKey.audioPreDownloadNum, 10)
-
-    val audioCacheCleanTimeOrgin: Int
-        get() = appCtx.getPrefInt(PreferKey.audioCacheCleanTime, 10)
-
-    val audioCacheCleanTime: Long
-        get() {
-            val str = appCtx.getPrefInt(PreferKey.audioCacheCleanTime, 10)
-            return str * 60 * 1000L
-        }
 
 }
+
diff --git a/app/src/main/java/io/legado/app/ui/config/ThemeConfigFragment.kt b/app/src/main/java/io/legado/app/ui/config/ThemeConfigFragment.kt
index 4c3bd1acf..43185f933 100644
--- a/app/src/main/java/io/legado/app/ui/config/ThemeConfigFragment.kt
+++ b/app/src/main/java/io/legado/app/ui/config/ThemeConfigFragment.kt
@@ -87,6 +87,7 @@ class ThemeConfigFragment : PreferenceFragmentCompat(),
         addPreferencesFromResource(R.xml.pref_config_theme)
 
         upPreferenceSummary(PreferKey.fontScale)
+        upPreferenceSummary(PreferKey.containerOpacity)
 
         findPreference<ColorPreference>(PreferKey.cBackground)?.let {
             it.onSaveColor = { color ->
@@ -254,6 +255,20 @@ class ThemeConfigFragment : PreferenceFragmentCompat(),
                     recreateActivities()
                 }
 
+            PreferKey.containerOpacity -> NumberPickerDialog(requireContext())
+                .setTitle(getString(R.string.container_opacity))
+                .setMaxValue(100)
+                .setMinValue(0)
+                .setValue(100)
+                .setCustomButton((R.string.btn_default_s)) {
+                    putPrefInt(PreferKey.containerOpacity, 100)
+                    ThemeSyncer.syncContainerOpacity()
+                }
+                .show {
+                    putPrefInt(PreferKey.containerOpacity, it)
+                    ThemeSyncer.syncContainerOpacity()
+                }
+
             PreferKey.bgImage -> selectBgAction(false)
             PreferKey.bgImageN -> selectBgAction(true)
             "colorImage" -> selectBgAction(null)
@@ -402,6 +417,10 @@ class ThemeConfigFragment : PreferenceFragmentCompat(),
         when (preferenceKey) {
             //PreferKey.barElevation -> preference.summary =
             //    getString(R.string.bar_elevation_s, value)
+            PreferKey.containerOpacity -> {
+                preference.summary =
+                    getString(R.string.container_opacity_summary, AppConfig.containerOpacity)
+            }
 
             PreferKey.fontScale -> {
                 val fontScale = AppContextWrapper.getFontScale(requireContext())
diff --git a/app/src/main/java/io/legado/app/ui/theme/AppTheme.kt b/app/src/main/java/io/legado/app/ui/theme/AppTheme.kt
index e38b19296..4ac35acfa 100644
--- a/app/src/main/java/io/legado/app/ui/theme/AppTheme.kt
+++ b/app/src/main/java/io/legado/app/ui/theme/AppTheme.kt
@@ -20,13 +20,15 @@ fun AppTheme(
     val isPureBlack by ThemeState.isPureBlack.collectAsState()
     val hasImageBg by ThemeState.hasImageBg.collectAsState()
     val paletteStyle by ThemeState.paletteStyle.collectAsState()
+    val opacity by ThemeState.containerOpacity.collectAsState()
 
     val colorScheme = ThemeManager.getColorScheme(
         mode = appThemeMode,
         darkTheme = darkTheme,
         isAmoled = isPureBlack,
         isImageBg = hasImageBg,
-        paletteStyle = paletteStyle
+        paletteStyle = paletteStyle,
+        opacity = opacity
     )
 
     MaterialExpressiveTheme(
diff --git a/app/src/main/java/io/legado/app/ui/theme/ThemeManager.kt b/app/src/main/java/io/legado/app/ui/theme/ThemeManager.kt
index d35577e73..bc466ef41 100644
--- a/app/src/main/java/io/legado/app/ui/theme/ThemeManager.kt
+++ b/app/src/main/java/io/legado/app/ui/theme/ThemeManager.kt
@@ -47,7 +47,8 @@ object ThemeManager {
         isAmoled: Boolean,
         isImageBg: Boolean,
         paletteStyle: String?,
-        forceOpaque: Boolean = false
+        forceOpaque: Boolean = false,
+        opacity: Int = 100
     ): ColorScheme {
         val context = LocalContext.current
         val style = resolvePaletteStyle(paletteStyle)
@@ -83,16 +84,27 @@ object ThemeManager {
             )
         }
 
-        return if (!forceOpaque && (isImageBg || actualMode == AppThemeMode.Transparent)) {
-            scheme.copy(
+        if (!forceOpaque && (isImageBg || actualMode == AppThemeMode.Transparent)) {
+            return scheme.copy(
                 surface = Color.Transparent,
                 background = Color.Transparent,
                 surfaceContainerLow = Color.Transparent,
-                surfaceContainer = Color.Transparent
+                surfaceContainer = Color.Transparent,
+            )
+        }
+
+        val alpha = opacity / 100f
+
+        return if (opacity < 100 && !forceOpaque) {
+            scheme.copy(
+                surfaceContainerLowest = scheme.surfaceContainerLowest.copy(alpha = alpha),
+                surfaceContainerLow = scheme.surfaceContainerLow.copy(alpha = alpha),
+                surfaceContainer = scheme.surfaceContainer.copy(alpha = alpha),
+                surfaceContainerHigh = scheme.surfaceContainerHigh.copy(alpha = alpha),
+                surfaceContainerHighest = scheme.surfaceContainerHighest.copy(alpha = alpha),
             )
         } else {
             scheme
         }
     }
-
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/ui/theme/ThemeState.kt b/app/src/main/java/io/legado/app/ui/theme/ThemeState.kt
index dd01485dc..ca2371b19 100644
--- a/app/src/main/java/io/legado/app/ui/theme/ThemeState.kt
+++ b/app/src/main/java/io/legado/app/ui/theme/ThemeState.kt
@@ -30,6 +30,10 @@ object ThemeState {
         MutableStateFlow(AppConfig.enableBlur)
     val enableBlur: StateFlow<Boolean> = _enableBlur.asStateFlow()
 
+    private val _containerOpacity =
+        MutableStateFlow(AppConfig.containerOpacity)
+    val containerOpacity: StateFlow<Int> = _containerOpacity
+
     fun updateThemeMode(newMode: AppThemeMode) {
         if (_themeMode.value != newMode) {
             _themeMode.value = newMode
@@ -60,4 +64,10 @@ object ThemeState {
         }
     }
 
+    fun updateContainerOpacity(opacity: Int) {
+        if (_containerOpacity.value != opacity) {
+            _containerOpacity.value = opacity
+        }
+    }
+
 }
diff --git a/app/src/main/java/io/legado/app/ui/theme/ThemeSyncer.kt b/app/src/main/java/io/legado/app/ui/theme/ThemeSyncer.kt
index 658a1e222..666847c45 100644
--- a/app/src/main/java/io/legado/app/ui/theme/ThemeSyncer.kt
+++ b/app/src/main/java/io/legado/app/ui/theme/ThemeSyncer.kt
@@ -13,6 +13,7 @@ object ThemeSyncer {
         syncImageBg()
         syncPaletteStyle()
         syncEnableBlur()
+        syncContainerOpacity()
     }
 
     fun syncThemeMode() {
@@ -36,4 +37,9 @@ object ThemeSyncer {
     fun syncEnableBlur() {
         ThemeState.updateEnableBlur(AppConfig.enableBlur)
     }
+
+    fun syncContainerOpacity() {
+        ThemeState.updateContainerOpacity(AppConfig.containerOpacity)
+    }
+
 }
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index 450a97c47..41469116f 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -1370,6 +1370,11 @@
     <string name="palette_style">调色板样式</string>
     <string name="tip_compose_set">这里的选项仅可以控制使用Compose重写的界面。</string>
     <string name="is_blur_enable">启用控件模糊</string>
+    <string name="use_underline">总是使用下划线表示强调文本</string>
+    <string name="adapt_special_style">适配特殊样式</string>
+    <string name="compose_engine">主题风格</string>
+    <string name="container_opacity">容器背景不透明度</string>
+    <string name="container_opacity_summary">%d</string>
     <string name="web_service_auto_start">启动应用时打开Web服务</string>
     <string name="read_aloud_preload">听书预加载数量</string>
     <string name="read_aloud_preload_summary">%d</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index b7501e2a5..798039028 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1375,6 +1375,11 @@
     <string name="palette_style">调色板样式</string>
     <string name="tip_compose_set">这里的选项仅可以控制使用Compose重写的界面。</string>
     <string name="is_blur_enable">启用控件模糊</string>
+    <string name="use_underline">总是使用下划线表示强调文本</string>
+    <string name="adapt_special_style">适配特殊样式</string>
+    <string name="compose_engine">主题风格</string>
+    <string name="container_opacity">容器背景不透明度</string>
+    <string name="container_opacity_summary">%d</string>
     <string name="web_service_auto_start">启动应用时打开Web服务</string>
     <string name="read_aloud_preload">听书预加载数量</string>
     <string name="read_aloud_preload_summary">%d</string>
diff --git a/app/src/main/res/xml/pref_config_theme.xml b/app/src/main/res/xml/pref_config_theme.xml
index edc46db98..2f125cd60 100644
--- a/app/src/main/res/xml/pref_config_theme.xml
+++ b/app/src/main/res/xml/pref_config_theme.xml
@@ -96,8 +96,23 @@
             app:entries="@array/paletteStyle"
             app:entryValues="@array/paletteStyle_value" />
 
+        <io.legado.app.lib.prefs.NameListPreference
+            android:defaultValue="material"
+            android:enabled="false"
+            android:key="composeEngine"
+            android:title="@string/compose_engine"
+            app:entries="@array/composeEngine"
+            app:entryValues="@array/composeEngine_value" />
+
+        <io.legado.app.lib.prefs.Preference
+            android:key="containerOpacity"
+            android:summary="@string/container_opacity_summary"
+            android:title="@string/container_opacity"
+            app:iconSpaceReserved="false" />
+
         <io.legado.app.lib.prefs.SwitchPreference
             android:defaultValue="true"
+            android:enabled="false"
             android:key="enableBlur"
             android:title="@string/is_blur_enable"
             app:iconSpaceReserved="false" />