feat(ssh): integrate SSH terminal into settings navigation

- Add SshTerminal to SettingsRoute enum
- Add SSH entry in settings list (ShellScreen -> SettingsShellScreen)
- Create SshTerminalSettingsScreen hosting the SSH terminal UI
- Copy SSH source files to app/src/main/java source root
- Wire up SettingsDetailScreen dispatch for SshTerminal route

app/main/java/ai/openclaw/app/ui/SettingsScreens.kt

@@ -24,6 +24,9 @@ import ai.openclaw.app.ui.design.ClawStatusPill
 import ai.openclaw.app.ui.design.ClawTextBadge
 import ai.openclaw.app.ui.design.ClawTextField
 import ai.openclaw.app.ui.design.ClawTheme
+import ai.openclaw.app.ui.tergent.SshTerminalManager
+import ai.openclaw.app.ui.tergent.SshConnectDialog
+import ai.openclaw.app.ui.tergent.SshTerminalScreen
 import android.Manifest
 import android.content.Context
 import android.content.Intent
@@ -45,6 +48,7 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.heightIn
@@ -54,6 +58,7 @@ import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
+import androidx.compose.material3.IconButton
 import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material.icons.automirrored.filled.KeyboardArrowRight
 import androidx.compose.material.icons.automirrored.filled.ScreenShare
@@ -77,12 +82,13 @@ import androidx.compose.material3.Surface
 import androidx.compose.material3.Switch
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
@@ -111,6 +117,7 @@ internal enum class SettingsRoute {
   Appearance,
   Health,
   About,
+  SshTerminal,
 }
 
 @Composable
@@ -138,6 +145,7 @@ internal fun SettingsDetailScreen(
     SettingsRoute.Appearance -> AppearanceSettingsScreen(onBack = onBack)
     SettingsRoute.Health -> HealthLogsSettingsScreen(viewModel = viewModel, onBack = onBack)
     SettingsRoute.About -> AboutSettingsScreen(viewModel = viewModel, onBack = onBack)
+    SettingsRoute.SshTerminal -> SshTerminalSettingsScreen(viewModel = viewModel, onBack = onBack)
   }
 }
 
@@ -1144,3 +1152,58 @@ private fun openNotificationListenerSettings(context: Context) {
   val intent = Intent(Settings.ACTION_NOTIFICATION_LISTENER_SETTINGS).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
   context.startActivity(intent)
 }
+
+@Composable
+internal fun SshTerminalSettingsScreen(
+  viewModel: MainViewModel,
+  onBack: () -> Unit,
+) {
+  val manager = remember { SshTerminalManager() }
+  var showConnectDialog by remember { mutableStateOf(false) }
+
+  DisposableEffect(Unit) {
+    onDispose {
+      manager.disconnect()
+    }
+  }
+
+  if (showConnectDialog) {
+    ai.openclaw.app.ui.tergent.SshConnectDialog(
+      onDismiss = { showConnectDialog = false },
+      onConnect = { config ->
+        showConnectDialog = false
+        manager.connect(config)
+      }
+    )
+  }
+
+  Box(modifier = Modifier.fillMaxSize()) {
+    ai.openclaw.app.ui.tergent.SshTerminalScreen(
+      manager = manager,
+      onDisconnect = {
+        manager.disconnect()
+        onBack()
+      },
+      onShowConnectDialog = { showConnectDialog = true },
+      modifier = Modifier.fillMaxSize(),
+    )
+
+    // Back button overlay
+    IconButton(
+      onClick = {
+        manager.disconnect()
+        onBack()
+      },
+      modifier = Modifier
+        .align(Alignment.TopStart)
+        .padding(8.dp)
+        .size(36.dp),
+    ) {
+      Icon(
+        imageVector = Icons.AutoMirrored.Filled.ArrowBack,
+        contentDescription = "Back",
+        tint = Color(0xFF9CA3AF),
+      )
+    }
+  }
+}

app/main/java/ai/openclaw/app/ui/ShellScreen.kt

@@ -38,6 +38,7 @@ import androidx.compose.material.icons.automirrored.filled.ExitToApp
 import androidx.compose.material.icons.automirrored.filled.KeyboardArrowRight
 import androidx.compose.material.icons.automirrored.filled.ScreenShare
 import androidx.compose.material.icons.filled.Cloud
+import androidx.compose.material.icons.filled.Computer
 import androidx.compose.material.icons.filled.Lock
 import androidx.compose.material.icons.filled.Mic
 import androidx.compose.material.icons.filled.Notifications
@@ -724,6 +725,7 @@ private fun SettingsShellScreen(
               SettingsRow("Phone Capabilities", if (cameraEnabled) "Camera enabled" else "Locked", Icons.Default.Lock, status = !cameraEnabled, route = SettingsRoute.PhoneCapabilities),
               SettingsRow("Gateway", gatewaySummary(statusText, isConnected), Icons.Default.Cloud, status = isConnected, route = SettingsRoute.Gateway),
               SettingsRow("Appearance", "Dark", Icons.Default.Palette, route = SettingsRoute.Appearance),
+              SettingsRow("SSH 终端", "Remote shell", Icons.Default.Computer, route = SettingsRoute.SshTerminal),
               SettingsRow("Health", "Diagnostics", Icons.Default.Settings, status = isConnected, route = SettingsRoute.Health),
               SettingsRow("About", "Version and update", Icons.Default.Storage, route = SettingsRoute.About),
             ),

app/src/main/java/ai/openclaw/app/ui/SettingsScreens.kt

@@ -24,6 +24,9 @@ import ai.openclaw.app.ui.design.ClawStatusPill
 import ai.openclaw.app.ui.design.ClawTextBadge
 import ai.openclaw.app.ui.design.ClawTextField
 import ai.openclaw.app.ui.design.ClawTheme
+import ai.openclaw.app.ui.tergent.SshTerminalManager
+import ai.openclaw.app.ui.tergent.SshConnectDialog
+import ai.openclaw.app.ui.tergent.SshTerminalScreen
 import android.Manifest
 import android.content.Context
 import android.content.Intent
@@ -45,6 +48,7 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.heightIn
@@ -54,6 +58,7 @@ import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
+import androidx.compose.material3.IconButton
 import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material.icons.automirrored.filled.KeyboardArrowRight
 import androidx.compose.material.icons.automirrored.filled.ScreenShare
@@ -77,12 +82,13 @@ import androidx.compose.material3.Surface
 import androidx.compose.material3.Switch
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
@@ -111,6 +117,7 @@ internal enum class SettingsRoute {
   Appearance,
   Health,
   About,
+  SshTerminal,
 }
 
 @Composable
@@ -138,6 +145,7 @@ internal fun SettingsDetailScreen(
     SettingsRoute.Appearance -> AppearanceSettingsScreen(onBack = onBack)
     SettingsRoute.Health -> HealthLogsSettingsScreen(viewModel = viewModel, onBack = onBack)
     SettingsRoute.About -> AboutSettingsScreen(viewModel = viewModel, onBack = onBack)
+    SettingsRoute.SshTerminal -> SshTerminalSettingsScreen(viewModel = viewModel, onBack = onBack)
   }
 }
 
@@ -1144,3 +1152,58 @@ private fun openNotificationListenerSettings(context: Context) {
   val intent = Intent(Settings.ACTION_NOTIFICATION_LISTENER_SETTINGS).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
   context.startActivity(intent)
 }
+
+@Composable
+internal fun SshTerminalSettingsScreen(
+  viewModel: MainViewModel,
+  onBack: () -> Unit,
+) {
+  val manager = remember { SshTerminalManager() }
+  var showConnectDialog by remember { mutableStateOf(false) }
+
+  DisposableEffect(Unit) {
+    onDispose {
+      manager.disconnect()
+    }
+  }
+
+  if (showConnectDialog) {
+    ai.openclaw.app.ui.tergent.SshConnectDialog(
+      onDismiss = { showConnectDialog = false },
+      onConnect = { config ->
+        showConnectDialog = false
+        manager.connect(config)
+      }
+    )
+  }
+
+  Box(modifier = Modifier.fillMaxSize()) {
+    ai.openclaw.app.ui.tergent.SshTerminalScreen(
+      manager = manager,
+      onDisconnect = {
+        manager.disconnect()
+        onBack()
+      },
+      onShowConnectDialog = { showConnectDialog = true },
+      modifier = Modifier.fillMaxSize(),
+    )
+
+    // Back button overlay
+    IconButton(
+      onClick = {
+        manager.disconnect()
+        onBack()
+      },
+      modifier = Modifier
+        .align(Alignment.TopStart)
+        .padding(8.dp)
+        .size(36.dp),
+    ) {
+      Icon(
+        imageVector = Icons.AutoMirrored.Filled.ArrowBack,
+        contentDescription = "Back",
+        tint = Color(0xFF9CA3AF),
+      )
+    }
+  }
+}

app/src/main/java/ai/openclaw/app/ui/ShellScreen.kt

@@ -38,6 +38,7 @@ import androidx.compose.material.icons.automirrored.filled.ExitToApp
 import androidx.compose.material.icons.automirrored.filled.KeyboardArrowRight
 import androidx.compose.material.icons.automirrored.filled.ScreenShare
 import androidx.compose.material.icons.filled.Cloud
+import androidx.compose.material.icons.filled.Computer
 import androidx.compose.material.icons.filled.Lock
 import androidx.compose.material.icons.filled.Mic
 import androidx.compose.material.icons.filled.Notifications
@@ -724,6 +725,7 @@ private fun SettingsShellScreen(
               SettingsRow("Phone Capabilities", if (cameraEnabled) "Camera enabled" else "Locked", Icons.Default.Lock, status = !cameraEnabled, route = SettingsRoute.PhoneCapabilities),
               SettingsRow("Gateway", gatewaySummary(statusText, isConnected), Icons.Default.Cloud, status = isConnected, route = SettingsRoute.Gateway),
               SettingsRow("Appearance", "Dark", Icons.Default.Palette, route = SettingsRoute.Appearance),
+              SettingsRow("SSH 终端", "Remote shell", Icons.Default.Computer, route = SettingsRoute.SshTerminal),
               SettingsRow("Health", "Diagnostics", Icons.Default.Settings, status = isConnected, route = SettingsRoute.Health),
               SettingsRow("About", "Version and update", Icons.Default.Storage, route = SettingsRoute.About),
             ),

app/src/main/java/ai/openclaw/app/ui/tergent/SshTerminalManager.kt

@@ -0,0 +1,163 @@
+package ai.openclaw.app.ui.tergent
+
+import com.jcraft.jsch.ChannelShell
+import com.jcraft.jsch.JSch
+import com.jcraft.jsch.Session
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.withContext
+import java.io.InputStream
+import java.io.OutputStream
+import java.util.concurrent.atomic.AtomicBoolean
+
+data class SshConfig(
+    val host: String = "",
+    val port: Int = 22,
+    val username: String = "",
+    val password: String = "",
+    val displayName: String = ""
+)
+
+data class SshConnectionState(
+    val connected: Boolean = false,
+    val host: String = "",
+    val displayName: String = "",
+    val lines: List<String> = emptyList(),
+    val error: String? = null
+)
+
+class SshTerminalManager {
+
+    private val jsch = JSch()
+    private var session: Session? = null
+    private var channel: ChannelShell? = null
+    private var inputStream: InputStream? = null
+    private var outputStream: OutputStream? = null
+
+    private val _connectionState = MutableStateFlow(SshConnectionState())
+    val connectionState: StateFlow<SshConnectionState> = _connectionState.asStateFlow()
+
+    private val running = AtomicBoolean(false)
+    private var lineBuffer = mutableListOf<String>()
+    private var currentLine = StringBuilder()
+
+    suspend fun connect(config: SshConfig): Boolean = withContext(Dispatchers.IO) {
+        try {
+            _connectionState.value = _connectionState.value.copy(error = null)
+
+            session = jsch.getSession(config.username, config.host, config.port).apply {
+                setPassword(config.password)
+                setConfig("StrictHostKeyChecking", "no")
+                connect(10000) // 10s timeout
+            }
+
+            channel = session?.openChannel("shell") as? ChannelShell
+            channel?.setPtyType("xterm-256color")
+            channel?.setPtySize(120, 40, 0, 0)
+
+            inputStream = channel?.inputStream
+            outputStream = channel?.outputStream
+
+            channel?.connect(5000)
+
+            lineBuffer.clear()
+            currentLine.clear()
+            running.set(true)
+
+            _connectionState.value = SshConnectionState(
+                connected = true,
+                host = config.host,
+                displayName = config.displayName.ifEmpty { config.host }
+            )
+
+            // Start reading output
+            withContext(Dispatchers.IO) {
+                readOutput()
+            }
+
+            true
+        } catch (e: Exception) {
+            _connectionState.value = SshConnectionState(
+                connected = false,
+                error = "连接失败: ${e.message ?: "未知错误"}"
+            )
+            disconnect()
+            false
+        }
+    }
+
+    private fun readOutput() {
+        val buffer = ByteArray(4096)
+        while (running.get()) {
+            try {
+                val len = inputStream?.read(buffer) ?: break
+                if (len < 0) break
+                val text = String(buffer, 0, len)
+
+                // Parse ANSI and add lines
+                for (ch in text) {
+                    when (ch) {
+                        '\n' -> {
+                            if (currentLine.isNotEmpty()) {
+                                lineBuffer.add(currentLine.toString())
+                                currentLine.clear()
+                            }
+                        }
+                        '\r' -> {
+                            // carriage return: some terminals use \r\n
+                            // if next char is \n it will be handled above
+                        }
+                        else -> currentLine.append(ch)
+                    }
+                }
+
+                // Keep line buffer manageable
+                if (lineBuffer.size > 2000) {
+                    lineBuffer = lineBuffer.takeLast(1500).toMutableList()
+                }
+
+                _connectionState.value = _connectionState.value.copy(
+                    lines = if (currentLine.isNotEmpty())
+                        lineBuffer + currentLine.toString()
+                    else
+                        lineBuffer.toList()
+                )
+            } catch (e: Exception) {
+                if (running.get()) {
+                    _connectionState.value = _connectionState.value.copy(
+                        error = "读取错误: ${e.message}"
+                    )
+                }
+                break
+            }
+        }
+    }
+
+    suspend fun sendCommand(command: String): Boolean = withContext(Dispatchers.IO) {
+        try {
+            outputStream?.write((command + "\n").toByteArray())
+            outputStream?.flush()
+            true
+        } catch (e: Exception) {
+            _connectionState.value = _connectionState.value.copy(
+                error = "发送失败: ${e.message}"
+            )
+            false
+        }
+    }
+
+    fun disconnect() {
+        running.set(false)
+        try { channel?.disconnect() } catch (_: Exception) {}
+        try { session?.disconnect() } catch (_: Exception) {}
+        channel = null
+        session = null
+        inputStream = null
+        outputStream = null
+        _connectionState.value = SshConnectionState()
+    }
+
+    fun isConnected(): Boolean = _connectionState.value.connected
+}

app/src/main/java/ai/openclaw/app/ui/tergent/SshTerminalScreen.kt

@@ -0,0 +1,376 @@
+package ai.openclaw.app.ui.tergent
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.horizontalScroll
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.BasicTextField
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.CheckCircle
+import androidx.compose.material.icons.filled.Close
+import androidx.compose.material.icons.filled.PowerSettingsNew
+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.graphics.SolidColor
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.input.TextFieldValue
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import kotlinx.coroutines.launch
+
+// Tergent colors inline for now
+private val bg = Color(0xFF111827)
+private val surface = Color(0xFF1F2937)
+private val border = Color(0xFF374151)
+private val textPrimary = Color(0xFFF9FAFB)
+private val textSecondary = Color(0xFF9CA3AF)
+private val textTertiary = Color(0xFF6B7280)
+private val primary = Color(0xFF5B8CFF)
+private val success = Color(0xFF34D399)
+private val danger = Color(0xFFF87171)
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun SshConnectDialog(
+    onDismiss: () -> Unit,
+    onConnect: (SshConfig) -> Unit,
+    savedConfigs: List<SshConfig> = emptyList()
+) {
+    var host by remember { mutableStateOf("") }
+    var port by remember { mutableStateOf("22") }
+    var username by remember { mutableStateOf("") }
+    var password by remember { mutableStateOf("") }
+    var displayName by remember { mutableStateOf("") }
+
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        containerColor = surface,
+        titleContentColor = textPrimary,
+        textContentColor = textSecondary,
+        shape = RoundedCornerShape(16.dp),
+        title = {
+            Text("SSH 连接", color = textPrimary, style = MaterialTheme.typography.titleMedium)
+        },
+        text = {
+            Column(verticalArrangement = Arrangement.spacedBy(12.dp)) {
+                OutlinedTextField(
+                    value = host,
+                    onValueChange = { host = it },
+                    label = { Text("主机地址") },
+                    placeholder = { Text("192.168.1.100", color = textTertiary) },
+                    singleLine = true,
+                    colors = OutlinedTextFieldDefaults.colors(
+                        focusedBorderColor = primary,
+                        unfocusedBorderColor = border,
+                        focusedTextColor = textPrimary,
+                        unfocusedTextColor = textPrimary,
+                        cursorColor = primary,
+                        focusedLabelColor = primary,
+                        unfocusedLabelColor = textTertiary
+                    )
+                )
+                Row(horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+                    OutlinedTextField(
+                        value = port,
+                        onValueChange = { port = it.filter { c -> c.isDigit() }.take(5) },
+                        label = { Text("端口") },
+                        placeholder = { Text("22", color = textTertiary) },
+                        singleLine = true,
+                        modifier = Modifier.width(100.dp),
+                        colors = OutlinedTextFieldDefaults.colors(
+                            focusedBorderColor = primary,
+                            unfocusedBorderColor = border,
+                            focusedTextColor = textPrimary,
+                            unfocusedTextColor = textPrimary,
+                            cursorColor = primary,
+                            focusedLabelColor = primary,
+                            unfocusedLabelColor = textTertiary
+                        )
+                    )
+                    Spacer(Modifier.width(8.dp))
+                    OutlinedTextField(
+                        value = username,
+                        onValueChange = { username = it },
+                        label = { Text("用户名") },
+                        placeholder = { Text("root", color = textTertiary) },
+                        singleLine = true,
+                        modifier = Modifier.weight(1f),
+                        colors = OutlinedTextFieldDefaults.colors(
+                            focusedBorderColor = primary,
+                            unfocusedBorderColor = border,
+                            focusedTextColor = textPrimary,
+                            unfocusedTextColor = textPrimary,
+                            cursorColor = primary,
+                            focusedLabelColor = primary,
+                            unfocusedLabelColor = textTertiary
+                        )
+                    )
+                }
+                OutlinedTextField(
+                    value = password,
+                    onValueChange = { password = it },
+                    label = { Text("密码") },
+                    placeholder = { Text("••••••••", color = textTertiary) },
+                    singleLine = true,
+                    visualTransformation = androidx.compose.ui.text.input.PasswordVisualTransformation(),
+                    colors = OutlinedTextFieldDefaults.colors(
+                        focusedBorderColor = primary,
+                        unfocusedBorderColor = border,
+                        focusedTextColor = textPrimary,
+                        unfocusedTextColor = textPrimary,
+                        cursorColor = primary,
+                        focusedLabelColor = primary,
+                        unfocusedLabelColor = textTertiary
+                    )
+                )
+            }
+        },
+        confirmButton = {
+            Button(
+                onClick = {
+                    onConnect(SshConfig(
+                        host = host.trim(),
+                        port = port.toIntOrNull() ?: 22,
+                        username = username.trim(),
+                        password = password,
+                        displayName = displayName.trim().ifEmpty { host.trim() }
+                    ))
+                },
+                enabled = host.isNotBlank() && username.isNotBlank() && password.isNotBlank(),
+                colors = ButtonDefaults.buttonColors(containerColor = primary)
+            ) {
+                Text("连接", color = Color.White)
+            }
+        },
+        dismissButton = {
+            TextButton(onClick = onDismiss) {
+                Text("取消", color = textSecondary)
+            }
+        }
+    )
+}
+
+@Composable
+fun SshTerminalScreen(
+    manager: SshTerminalManager,
+    onDisconnect: () -> Unit,
+    onShowConnectDialog: () -> Unit,
+    modifier: Modifier = Modifier
+) {
+    val state by manager.connectionState.collectAsState()
+    var input by remember { mutableStateOf(TextFieldValue("")) }
+    val coroutineScope = rememberCoroutineScope()
+    val listState = rememberLazyListState()
+
+    // Auto-scroll to bottom
+    LaunchedEffect(state.lines.size) {
+        if (state.lines.isNotEmpty()) {
+            listState.animateScrollToItem(state.lines.size - 1)
+        }
+    }
+
+    Box(
+        modifier = modifier
+            .fillMaxSize()
+            .background(bg)
+    ) {
+        Column(modifier = Modifier.fillMaxSize()) {
+            // Terminal header
+            Surface(
+                modifier = Modifier.fillMaxWidth(),
+                color = surface,
+                shadowElevation = 0.dp
+            ) {
+                Row(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .padding(horizontal = 12.dp, vertical = 8.dp),
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.SpaceBetween
+                ) {
+                    Row(verticalAlignment = Alignment.CenterVertically) {
+                        Icon(
+                            imageVector = if (state.connected) Icons.Default.CheckCircle else Icons.Default.Close,
+                            contentDescription = null,
+                            tint = if (state.connected) success else danger,
+                            modifier = Modifier.size(16.dp)
+                        )
+                        Spacer(Modifier.width(6.dp))
+                        Text(
+                            text = if (state.connected) state.displayName else "SSH 终端",
+                            color = textPrimary,
+                            fontSize = 14.sp
+                        )
+                    }
+                    Row(horizontalArrangement = Arrangement.spacedBy(4.dp)) {
+                        if (state.connected) {
+                            IconButton(
+                                onClick = { coroutineScope.launch { manager.sendCommand("exit") }; onDisconnect() },
+                                modifier = Modifier.size(32.dp)
+                            ) {
+                                Icon(
+                                    Icons.Default.PowerSettingsNew,
+                                    contentDescription = "断开",
+                                    tint = danger,
+                                    modifier = Modifier.size(18.dp)
+                                )
+                            }
+                        } else {
+                            IconButton(
+                                onClick = onShowConnectDialog,
+                                modifier = Modifier.size(28.dp)
+                            ) {
+                                Text("+", color = primary, fontSize = 18.sp)
+                            }
+                        }
+                    }
+                }
+            }
+
+            // Error message
+            if (state.error != null) {
+                Surface(
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .padding(8.dp),
+                    color = Color(0xFF3B1A1A),
+                    shape = RoundedCornerShape(8.dp)
+                ) {
+                    Text(
+                        text = state.error ?: "",
+                        color = danger,
+                        fontSize = 12.sp,
+                        modifier = Modifier.padding(12.dp)
+                    )
+                }
+            }
+
+            // Terminal output area
+            if (state.connected && state.lines.isNotEmpty()) {
+                LazyColumn(
+                    modifier = Modifier
+                        .weight(1f)
+                        .fillMaxWidth()
+                        .padding(horizontal = 8.dp),
+                    state = listState,
+                    verticalArrangement = Arrangement.spacedBy(0.dp)
+                ) {
+                    items(state.lines) { line ->
+                        Text(
+                            text = line,
+                            color = textPrimary,
+                            fontSize = 11.sp,
+                            fontFamily = FontFamily.Monospace,
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .horizontalScroll(rememberScrollState())
+                                .padding(vertical = 1.dp)
+                        )
+                    }
+                }
+            } else if (!state.connected) {
+                // Empty placeholder
+                Box(
+                    modifier = Modifier.weight(1f).fillMaxWidth(),
+                    contentAlignment = Alignment.Center
+                ) {
+                    Column(horizontalAlignment = Alignment.CenterHorizontally) {
+                        Text(
+                            text = "terminal@tergent:~$",
+                            color = textTertiary,
+                            fontFamily = FontFamily.Monospace,
+                            fontSize = 16.sp
+                        )
+                        Spacer(Modifier.height(8.dp))
+                        Text(
+                            text = "点击 + 开始 SSH 连接",
+                            color = textTertiary,
+                            fontSize = 13.sp
+                        )
+                    }
+                }
+            } else {
+                // Connected but no output yet
+                Box(
+                    modifier = Modifier.weight(1f).fillMaxWidth(),
+                    contentAlignment = Alignment.Center
+                ) {
+                    Text(
+                        text = "等待输出...",
+                        color = textTertiary,
+                        fontSize = 12.sp
+                    )
+                }
+            }
+
+            // Bottom input bar
+            if (state.connected) {
+                Surface(
+                    modifier = Modifier.fillMaxWidth(),
+                    color = Color(0xFF0D1117),
+                    shadowElevation = 0.dp
+                ) {
+                    Row(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(horizontal = 8.dp, vertical = 6.dp),
+                        verticalAlignment = Alignment.CenterVertically
+                    ) {
+                        Text(
+                            text = "$ ",
+                            color = success,
+                            fontFamily = FontFamily.Monospace,
+                            fontSize = 13.sp
+                        )
+                        Box(modifier = Modifier.weight(1f)) {
+                            BasicTextField(
+                                value = input,
+                                onValueChange = { input = it },
+                                textStyle = TextStyle(
+                                    color = textPrimary,
+                                    fontSize = 13.sp,
+                                    fontFamily = FontFamily.Monospace
+                                ),
+                                cursorBrush = SolidColor(primary),
+                                modifier = Modifier.fillMaxWidth(),
+                                decorationBox = { innerTextField ->
+                                    if (input.text.isEmpty()) {
+                                        Text(
+                                            text = "输入命令...",
+                                            color = textTertiary,
+                                            fontSize = 13.sp,
+                                            fontFamily = FontFamily.Monospace
+                                        )
+                                    }
+                                    innerTextField()
+                                }
+                            )
+                        }
+                        IconButton(
+                            onClick = {
+                                if (input.text.isNotBlank()) {
+                                    coroutineScope.launch {
+                                        manager.sendCommand(input.text)
+                                        input = TextFieldValue("")
+                                    }
+                                }
+                            },
+                            modifier = Modifier.size(36.dp)
+                        ) {
+                            Text("↵", color = primary, fontSize = 16.sp)
+                        }
+                    }
+                }
+            }
+        }
+    }
+}