refactor: 主页重构，联机模式/游戏设置改为二级页面，昵称/主题/关于移至设置

app/src/main/java/com/unogame/MainActivity.kt

@@ -198,40 +198,17 @@ fun UnoApp() {
     ) {
         composable(Screen.MainMenu.route) {
             MainMenuScreen(
-                initialName = savedName,
-                onNameChanged = { name ->
-                    savedName = name
-                    prefs.edit().putString("player_name", name).apply()
-                },
-                onLocalGame = {
-                    navController.navigate(Screen.ModeSelect.route)
-                },
-                onScoreboard = {
-                    navController.navigate(Screen.Scoreboard.route)
-                },
-                onRules = {
-                    navController.navigate(Screen.Rules.route)
-                },
-                currentTheme = cardTheme,
-                currentBg = tableBg,
-                onToggleTheme = {
-                    val next = CardTheme.values()[(cardTheme.ordinal + 1) % CardTheme.values().size]
-                    cardTheme = next
-                    CardTheme.save(context, next)
-                },
-                onToggleBg = {
-                    val next = TableBg.values()[(tableBg.ordinal + 1) % TableBg.values().size]
-                    tableBg = next
-                    TableBg.save(context, next)
-                },
-                onToggleOrientation = {
-                    isLandscape = !isLandscape
-                    prefs.edit().putBoolean("landscape", isLandscape).apply()
-                    (context as? android.app.Activity)?.requestedOrientation =
-                        if (isLandscape) ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE
-                        else ActivityInfo.SCREEN_ORIENTATION_PORTRAIT
-                },
-                isLandscape = isLandscape,
+                onLocalGame = { navController.navigate(Screen.ModeSelect.route) },
+                onOnlineGame = { navController.navigate(Screen.LobbyMenu.route) },
+                onScoreboard = { navController.navigate(Screen.Scoreboard.route) },
+                onRules = { navController.navigate(Screen.Rules.route) },
+                onSettings = { navController.navigate(Screen.Settings.route) }
+            )
+        }
+
+        composable(Screen.LobbyMenu.route) {
+            LobbyMenuScreen(
+                playerName = savedName,
                 onHostGame = { name ->
                     myName = name
                     isHost = true
@@ -244,7 +221,6 @@ fun UnoApp() {
                         discoveryService = discovery
                         discovery.startAdvertising(name, 1)
                         navController.navigate(Screen.Lobby.createRoute(true))
-                        // Host connects as a client too (to localhost) - on IO thread
                         scope.launch {
                             val client = GameClient()
                             if (client.connect("127.0.0.1", name)) {
@@ -262,7 +238,6 @@ fun UnoApp() {
                     discoveryService = discovery
                     discovery.startDiscovery(name)
                     isDiscovering = true
-
                     scope.launch {
                         discovery.hosts.collect { hosts ->
                             discoveredHosts = hosts
@@ -270,7 +245,8 @@ fun UnoApp() {
                         }
                     }
                     navController.navigate(Screen.Lobby.createRoute(false))
-                }
+                },
+                onBack = { navController.popBackStack() }
             )
         }
 
@@ -424,6 +400,34 @@ fun UnoApp() {
             RulesHelpScreen(onBack = { navController.popBackStack() })
         }
 
+        composable(Screen.Settings.route) {
+            SettingsScreen(
+                initialName = savedName,
+                currentTheme = cardTheme,
+                currentBg = tableBg,
+                isLandscape = isLandscape,
+                onNameChanged = { name ->
+                    savedName = name
+                    prefs.edit().putString("player_name", name).apply()
+                },
+                onToggleTheme = {
+                    val next = CardTheme.values()[(cardTheme.ordinal + 1) % CardTheme.values().size]
+                    cardTheme = next
+                    CardTheme.save(context, next)
+                },
+                onToggleBg = {
+                    val next = TableBg.values()[(tableBg.ordinal + 1) % TableBg.values().size]
+                    tableBg = next
+                    TableBg.save(context, next)
+                },
+                onToggleOrientation = {
+                    isLandscape = !isLandscape
+                    prefs.edit().putBoolean("landscape", isLandscape).apply()
+                },
+                onBack = { navController.popBackStack() }
+            )
+        }
+
         composable(Screen.Game.route) {
             gameState?.let { state ->
                 GameScreen(

app/src/main/java/com/unogame/ui/navigation/Screen.kt

@@ -6,6 +6,7 @@ sealed class Screen(val route: String) {
         fun createRoute(isHost: Boolean) = "lobby/$isHost"
     }
     data object ModeSelect : Screen("mode_select")
+    data object LobbyMenu : Screen("lobby_menu")
     data object LocalSetup : Screen("local_setup/{modeName}") {
         fun createRoute(mode: String) = "local_setup/$mode"
     }
@@ -20,4 +21,5 @@ sealed class Screen(val route: String) {
         fun createRoute(winnerName: String, isYouWinner: Boolean) =
             "game_over/$winnerName/$isYouWinner"
     }
+    data object Settings : Screen("settings")
 }

app/src/main/java/com/unogame/ui/screens/LobbyMenuScreen.kt

@@ -0,0 +1,101 @@
+package com.unogame.ui.screens
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.*
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import com.unogame.ui.theme.*
+
+@Composable
+fun LobbyMenuScreen(
+    playerName: String,
+    onHostGame: (String) -> Unit,
+    onJoinGame: (String) -> Unit,
+    onBack: () -> Unit
+) {
+    Box(modifier = Modifier.fillMaxSize().background(LocalTableBg.current.color)) {
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(24.dp)
+        ) {
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                verticalAlignment = Alignment.CenterVertically
+            ) {
+                IconButton(onClick = onBack) {
+                    Icon(Icons.Default.ArrowBack, "返回", tint = Color.White)
+                }
+                Text("联机模式", fontSize = 24.sp, fontWeight = FontWeight.Bold, color = Color.White)
+            }
+
+            Spacer(modifier = Modifier.height(40.dp))
+
+            // Create room
+            Button(
+                onClick = {
+                    val name = playerName.ifBlank { "玩家" }
+                    onHostGame(name)
+                },
+                modifier = Modifier.fillMaxWidth().height(56.dp),
+                shape = RoundedCornerShape(16.dp),
+                colors = ButtonDefaults.buttonColors(
+                    containerColor = GoldAccent,
+                    contentColor = Color.Black
+                )
+            ) {
+                Icon(Icons.Default.Home, null)
+                Spacer(modifier = Modifier.width(12.dp))
+                Text("创建房间", fontSize = 18.sp, fontWeight = FontWeight.Bold)
+            }
+
+            Spacer(modifier = Modifier.height(16.dp))
+
+            // Join room
+            Button(
+                onClick = {
+                    val name = playerName.ifBlank { "玩家" }
+                    onJoinGame(name)
+                },
+                modifier = Modifier.fillMaxWidth().height(56.dp),
+                shape = RoundedCornerShape(16.dp),
+                colors = ButtonDefaults.buttonColors(
+                    containerColor = DarkSurface,
+                    contentColor = Color.White
+                )
+            ) {
+                Icon(Icons.Default.Search, null)
+                Spacer(modifier = Modifier.width(12.dp))
+                Text("加入房间", fontSize = 18.sp, fontWeight = FontWeight.Bold)
+            }
+
+            Spacer(modifier = Modifier.height(24.dp))
+
+            Card(
+                modifier = Modifier.fillMaxWidth(),
+                shape = RoundedCornerShape(12.dp),
+                colors = CardDefaults.cardColors(containerColor = DarkSurface.copy(alpha = 0.5f))
+            ) {
+                Column(modifier = Modifier.padding(16.dp)) {
+                    Text("说明", color = GoldAccent, fontWeight = FontWeight.Bold, fontSize = 14.sp)
+                    Spacer(modifier = Modifier.height(8.dp))
+                    Text(
+                        "创建房间：作为房主等待其他玩家加入\n加入房间：搜索同一WiFi下的房间",
+                        color = Color.White.copy(alpha = 0.6f),
+                        fontSize = 13.sp,
+                        lineHeight = 20.sp
+                    )
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/unogame/ui/screens/MainMenuScreen.kt

@@ -1,6 +1,5 @@
 package com.unogame.ui.screens
 
-import androidx.compose.animation.*
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.rememberScrollState
@@ -12,10 +11,8 @@ import androidx.compose.material3.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Brush
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.text.input.KeyboardType
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
@@ -23,23 +20,12 @@ import com.unogame.ui.theme.*
 
 @Composable
 fun MainMenuScreen(
-    initialName: String,
-    currentTheme: CardTheme,
-    currentBg: TableBg,
-    onHostGame: (String) -> Unit,
-    onJoinGame: (String) -> Unit,
     onLocalGame: () -> Unit,
+    onOnlineGame: () -> Unit,
     onScoreboard: () -> Unit,
     onRules: () -> Unit,
-    onToggleTheme: () -> Unit,
-    onToggleBg: () -> Unit,
-    onToggleOrientation: () -> Unit,
-    isLandscape: Boolean,
-    onNameChanged: (String) -> Unit
+    onSettings: () -> Unit
 ) {
-    var playerName by remember { mutableStateOf(initialName) }
-    var showAbout by remember { mutableStateOf(false) }
-
     Box(
         modifier = Modifier
             .fillMaxSize()
@@ -54,15 +40,13 @@ fun MainMenuScreen(
             horizontalAlignment = Alignment.CenterHorizontally
         ) {
             // Title
-            Row(verticalAlignment = Alignment.CenterVertically) {
-                Text(
-                    text = "UNO",
-                    fontSize = 72.sp,
-                    fontWeight = FontWeight.Black,
-                    color = GoldAccent,
-                    textAlign = TextAlign.Center
-                )
-            }
+            Text(
+                text = "UNO",
+                fontSize = 72.sp,
+                fontWeight = FontWeight.Black,
+                color = GoldAccent,
+                textAlign = TextAlign.Center
+            )
             Text(
                 text = "卡牌游戏",
                 fontSize = 18.sp,
@@ -70,76 +54,9 @@ fun MainMenuScreen(
                 textAlign = TextAlign.Center
             )
 
-            Spacer(modifier = Modifier.height(60.dp))
+            Spacer(modifier = Modifier.height(48.dp))
 
-            // Name input
-            OutlinedTextField(
-                value = playerName,
-                onValueChange = {
-                    playerName = it.take(10)
-                    onNameChanged(playerName.ifBlank { "玩家" })
-                },
-                label = { Text("你的昵称", color = Color.White.copy(alpha = 0.6f)) },
-                singleLine = true,
-                colors = OutlinedTextFieldDefaults.colors(
-                    focusedTextColor = Color.White,
-                    unfocusedTextColor = Color.White,
-                    focusedBorderColor = GoldAccent,
-                    unfocusedBorderColor = Color.Gray,
-                    cursorColor = GoldAccent
-                ),
-                modifier = Modifier.fillMaxWidth()
-            )
-
-            Spacer(modifier = Modifier.height(32.dp))
-
-            // Host Game button
-            Button(
-                onClick = {
-                    val name = playerName.ifBlank { "玩家" }
-                    onNameChanged(name)
-                    onHostGame(name)
-                },
-                modifier = Modifier
-                    .fillMaxWidth()
-                    .height(56.dp),
-                shape = RoundedCornerShape(16.dp),
-                colors = ButtonDefaults.buttonColors(
-                    containerColor = DarkSurface,
-                    contentColor = GoldAccent
-                )
-            ) {
-                Icon(Icons.Default.Home, contentDescription = null)
-                Spacer(modifier = Modifier.width(12.dp))
-                Text("创建房间", fontSize = 18.sp, fontWeight = FontWeight.Bold)
-            }
-
-            Spacer(modifier = Modifier.height(16.dp))
-
-            // Join Game button
-            Button(
-                onClick = {
-                    val name = playerName.ifBlank { "玩家" }
-                    onNameChanged(name)
-                    onJoinGame(name)
-                },
-                modifier = Modifier
-                    .fillMaxWidth()
-                    .height(56.dp),
-                shape = RoundedCornerShape(16.dp),
-                colors = ButtonDefaults.buttonColors(
-                    containerColor = DarkSurface,
-                    contentColor = Color.White
-                )
-            ) {
-                Icon(Icons.Default.Search, contentDescription = null)
-                Spacer(modifier = Modifier.width(12.dp))
-                Text("加入房间", fontSize = 18.sp, fontWeight = FontWeight.Bold)
-            }
-
-            Spacer(modifier = Modifier.height(16.dp))
-
-            // Local Game button
+            // 1. 本地模式
             Button(
                 onClick = onLocalGame,
                 modifier = Modifier
@@ -158,7 +75,26 @@ fun MainMenuScreen(
 
             Spacer(modifier = Modifier.height(16.dp))
 
-            // Scoreboard button
+            // 2. 联机模式
+            Button(
+                onClick = onOnlineGame,
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .height(56.dp),
+                shape = RoundedCornerShape(16.dp),
+                colors = ButtonDefaults.buttonColors(
+                    containerColor = DarkSurface,
+                    contentColor = GoldAccent
+                )
+            ) {
+                Icon(Icons.Default.Wifi, contentDescription = null)
+                Spacer(modifier = Modifier.width(12.dp))
+                Text("联机模式", fontSize = 18.sp, fontWeight = FontWeight.Bold)
+            }
+
+            Spacer(modifier = Modifier.height(16.dp))
+
+            // 3. 排行榜
             Button(
                 onClick = onScoreboard,
                 modifier = Modifier
@@ -177,7 +113,7 @@ fun MainMenuScreen(
 
             Spacer(modifier = Modifier.height(16.dp))
 
-            // Rules button
+            // 4. 规则说明
             Button(
                 onClick = onRules,
                 modifier = Modifier
@@ -196,92 +132,22 @@ fun MainMenuScreen(
 
             Spacer(modifier = Modifier.height(16.dp))
 
-            // Theme toggle
-            TextButton(onClick = onToggleTheme) {
-                Icon(Icons.Default.Palette, null, tint = Color.White.copy(alpha = 0.5f))
-                Spacer(modifier = Modifier.width(6.dp))
-                Text("卡面: ${currentTheme.displayName}", color = Color.White.copy(alpha = 0.5f), fontSize = 14.sp)
-                Spacer(modifier = Modifier.width(4.dp))
-                Text("→", color = GoldAccent, fontSize = 14.sp)
-            }
-
-            // Background toggle
-            TextButton(onClick = onToggleBg) {
-                Icon(Icons.Default.Wallpaper, null, tint = Color.White.copy(alpha = 0.5f))
-                Spacer(modifier = Modifier.width(6.dp))
-                Text("牌桌: ${currentBg.displayName}", color = Color.White.copy(alpha = 0.5f), fontSize = 14.sp)
-                Spacer(modifier = Modifier.width(4.dp))
-                Text("→", color = GoldAccent, fontSize = 14.sp)
-            }
-
-            // Orientation toggle
-            TextButton(onClick = onToggleOrientation) {
-                Icon(if (isLandscape) Icons.Default.StayCurrentLandscape else Icons.Default.StayCurrentPortrait,
-                    null, tint = Color.White.copy(alpha = 0.5f))
-                Spacer(modifier = Modifier.width(6.dp))
-                Text(if (isLandscape) "横屏" else "竖屏", color = Color.White.copy(alpha = 0.5f), fontSize = 14.sp)
-                Spacer(modifier = Modifier.width(4.dp))
-                Text("→", color = GoldAccent, fontSize = 14.sp)
-            }
-
-            Spacer(modifier = Modifier.height(16.dp))
-
-            // About button
-            TextButton(onClick = { showAbout = true }) {
-                Icon(Icons.Default.Info, null, tint = Color.White.copy(alpha = 0.5f))
-                Spacer(modifier = Modifier.width(6.dp))
-                Text("关于", color = Color.White.copy(alpha = 0.5f), fontSize = 14.sp)
-            }
-
-            Spacer(modifier = Modifier.height(8.dp))
-
-            // Instructions
-            Card(
-                modifier = Modifier.fillMaxWidth(),
-                shape = RoundedCornerShape(12.dp),
-                colors = CardDefaults.cardColors(containerColor = DarkSurface.copy(alpha = 0.5f))
+            // 5. 游戏设置
+            Button(
+                onClick = onSettings,
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .height(56.dp),
+                shape = RoundedCornerShape(16.dp),
+                colors = ButtonDefaults.buttonColors(
+                    containerColor = DarkSurface,
+                    contentColor = Color.White.copy(alpha = 0.5f)
+                )
             ) {
-                Column(modifier = Modifier.padding(16.dp)) {
-                    Text(
-                        "游戏说明",
-                        color = GoldAccent,
-                        fontWeight = FontWeight.Bold,
-                        fontSize = 14.sp
-                    )
-                    Spacer(modifier = Modifier.height(8.dp))
-                    Text(
-                        "• 创建房间：作为房主等待其他玩家加入\n• 加入房间：搜索同一WiFi下的房间\n• 与同颜色、同数字/功能的牌匹配",
-                        color = Color.White.copy(alpha = 0.7f),
-                        fontSize = 12.sp,
-                        lineHeight = 18.sp
-                    )
-                }
+                Icon(Icons.Default.Settings, contentDescription = null)
+                Spacer(modifier = Modifier.width(12.dp))
+                Text("游戏设置", fontSize = 18.sp, fontWeight = FontWeight.Bold)
             }
         }
     }
-
-    // About dialog
-    if (showAbout) {
-        AlertDialog(
-            onDismissRequest = { showAbout = false },
-            title = { Text("关于", color = GoldAccent, fontWeight = FontWeight.Bold) },
-            text = {
-                Column {
-                    Text("感谢名单", color = GoldAccent, fontSize = 16.sp, fontWeight = FontWeight.Bold)
-                    Spacer(modifier = Modifier.height(12.dp))
-                    Text("主创：刘博", color = Color.White, fontSize = 14.sp)
-                    Spacer(modifier = Modifier.height(4.dp))
-                    Text("最佳苦力：opencode、deepseek v4 pro", color = Color.White, fontSize = 14.sp)
-                    Spacer(modifier = Modifier.height(4.dp))
-                    Text("金牌测试：张天弈、蔺明智", color = Color.White, fontSize = 14.sp)
-                }
-            },
-            confirmButton = {
-                TextButton(onClick = { showAbout = false }) {
-                    Text("关闭", color = GoldAccent)
-                }
-            },
-            containerColor = DarkSurface
-        )
-    }
 }

app/src/main/java/com/unogame/ui/screens/SettingsScreen.kt

@@ -0,0 +1,167 @@
+package com.unogame.ui.screens
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.*
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import com.unogame.ui.theme.*
+
+@Composable
+fun SettingsScreen(
+    initialName: String,
+    currentTheme: CardTheme,
+    currentBg: TableBg,
+    isLandscape: Boolean,
+    onNameChanged: (String) -> Unit,
+    onToggleTheme: () -> Unit,
+    onToggleBg: () -> Unit,
+    onToggleOrientation: () -> Unit,
+    onBack: () -> Unit
+) {
+    var playerName by remember { mutableStateOf(initialName) }
+    var showAbout by remember { mutableStateOf(false) }
+
+    Box(modifier = Modifier.fillMaxSize().background(LocalTableBg.current.color)) {
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .verticalScroll(rememberScrollState())
+                .padding(24.dp)
+        ) {
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                verticalAlignment = Alignment.CenterVertically
+            ) {
+                IconButton(onClick = onBack) {
+                    Icon(Icons.Default.ArrowBack, "返回", tint = Color.White)
+                }
+                Text("游戏设置", fontSize = 24.sp, fontWeight = FontWeight.Bold, color = Color.White)
+            }
+
+            Spacer(modifier = Modifier.height(32.dp))
+
+            // Nickname
+            Text("你的昵称", color = Color.White.copy(alpha = 0.6f), fontSize = 14.sp)
+            Spacer(modifier = Modifier.height(8.dp))
+            OutlinedTextField(
+                value = playerName,
+                onValueChange = {
+                    playerName = it.take(10)
+                    onNameChanged(playerName.ifBlank { "玩家" })
+                },
+                singleLine = true,
+                modifier = Modifier.fillMaxWidth(),
+                colors = OutlinedTextFieldDefaults.colors(
+                    focusedTextColor = Color.White,
+                    unfocusedTextColor = Color.White,
+                    focusedBorderColor = GoldAccent,
+                    unfocusedBorderColor = Color.Gray,
+                    cursorColor = GoldAccent
+                )
+            )
+
+            Spacer(modifier = Modifier.height(28.dp))
+
+            // Card theme
+            Text("外观设置", color = Color.White.copy(alpha = 0.6f), fontSize = 14.sp)
+            Spacer(modifier = Modifier.height(12.dp))
+            SettingsRow(
+                icon = Icons.Default.Palette,
+                label = "卡面风格",
+                value = currentTheme.displayName,
+                onClick = onToggleTheme
+            )
+            SettingsRow(
+                icon = Icons.Default.Wallpaper,
+                label = "牌桌背景",
+                value = currentBg.displayName,
+                onClick = onToggleBg
+            )
+            SettingsRow(
+                icon = if (isLandscape) Icons.Default.StayCurrentLandscape else Icons.Default.StayCurrentPortrait,
+                label = "屏幕方向",
+                value = if (isLandscape) "横屏" else "竖屏",
+                onClick = onToggleOrientation
+            )
+
+            Spacer(modifier = Modifier.height(28.dp))
+
+            // About
+            Text("其他", color = Color.White.copy(alpha = 0.6f), fontSize = 14.sp)
+            Spacer(modifier = Modifier.height(12.dp))
+            SettingsRow(
+                icon = Icons.Default.Info,
+                label = "关于",
+                value = "",
+                onClick = { showAbout = true }
+            )
+        }
+    }
+
+    if (showAbout) {
+        AlertDialog(
+            onDismissRequest = { showAbout = false },
+            title = { Text("关于", color = GoldAccent, fontWeight = FontWeight.Bold) },
+            text = {
+                Column {
+                    Text("感谢名单", color = GoldAccent, fontSize = 16.sp, fontWeight = FontWeight.Bold)
+                    Spacer(modifier = Modifier.height(12.dp))
+                    Text("主创：刘博", color = Color.White, fontSize = 14.sp)
+                    Spacer(modifier = Modifier.height(4.dp))
+                    Text("最佳苦力：opencode、deepseek v4 pro", color = Color.White.copy(alpha = 0.7f), fontSize = 14.sp)
+                    Spacer(modifier = Modifier.height(4.dp))
+                    Text("金牌测试：张天羿、蔺明智", color = Color.White.copy(alpha = 0.7f), fontSize = 14.sp)
+                }
+            },
+            confirmButton = {
+                TextButton(onClick = { showAbout = false }) {
+                    Text("关闭", color = GoldAccent)
+                }
+            },
+            containerColor = DarkSurface
+        )
+    }
+}
+
+@Composable
+private fun SettingsRow(
+    icon: androidx.compose.ui.graphics.vector.ImageVector,
+    label: String,
+    value: String,
+    onClick: () -> Unit
+) {
+    Card(
+        modifier = Modifier
+            .fillMaxWidth()
+            .clickable { onClick() },
+        shape = RoundedCornerShape(12.dp),
+        colors = CardDefaults.cardColors(containerColor = DarkSurface)
+    ) {
+        Row(
+            modifier = Modifier.padding(horizontal = 16.dp, vertical = 14.dp),
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            Icon(icon, null, tint = Color.White.copy(alpha = 0.6f), modifier = Modifier.size(20.dp))
+            Spacer(modifier = Modifier.width(12.dp))
+            Text(label, color = Color.White, fontSize = 15.sp, modifier = Modifier.weight(1f))
+            if (value.isNotEmpty()) {
+                Text(value, color = GoldAccent, fontSize = 14.sp)
+                Spacer(modifier = Modifier.width(4.dp))
+                Icon(Icons.Default.ChevronRight, null, tint = Color.White.copy(alpha = 0.3f), modifier = Modifier.size(18.dp))
+            }
+        }
+    }
+    Spacer(modifier = Modifier.height(8.dp))
+}