diff --git a/packages/frontend/src/components/StatusMonitor.vue b/packages/frontend/src/components/StatusMonitor.vue
index 80ccc3e..edb32e0 100644
--- a/packages/frontend/src/components/StatusMonitor.vue
+++ b/packages/frontend/src/components/StatusMonitor.vue
@@ -1,87 +1,109 @@
 <template>
-  <div class="status-monitor">
-    <h4>{{ t('statusMonitor.title') }}</h4>
-    <!-- Corrected state display logic -->
-    <div v-if="statusError" class="status-error">
-      {{ t('statusMonitor.errorPrefix') }} {{ statusError }}
+  <!-- Root element with padding, background, border, and text styles -->
+  <div class="status-monitor p-4 border-l border-border bg-background text-foreground h-full overflow-y-auto text-sm">
+    <!-- Title with margin, border, padding, font size, and color -->
+    <h4 class="mt-0 mb-4 border-b border-border pb-2 text-base font-medium">
+      {{ t('statusMonitor.title') }}
+    </h4>
+
+    <!-- Error State -->
+    <div v-if="statusError" class="status-error flex flex-col items-center justify-center text-center text-red-500 mt-4 h-full">
+       <i class="fas fa-exclamation-triangle text-2xl mb-2"></i>
+       <span>{{ t('statusMonitor.errorPrefix') }} {{ statusError }}</span>
     </div>
-    <div v-else-if="!serverStatus" class="loading-status">
-      <i class="fas fa-spinner fa-spin"></i>
-      {{ t('statusMonitor.loading') }}
+
+    <!-- Loading State -->
+    <div v-else-if="!serverStatus" class="loading-status flex flex-col items-center justify-center text-center text-text-secondary mt-4 h-full">
+      <i class="fas fa-spinner fa-spin text-2xl mb-2"></i>
+      <span>{{ t('statusMonitor.loading') }}</span>
     </div>
-    <div v-else class="status-grid">
-      <!-- Status items remain here -->
-      <div class="status-item cpu-model">
-        <label>{{ t('statusMonitor.cpuModelLabel') }}</label>
-        <!-- 使用 displayCpuModel 计算属性 -->
-        <span class="cpu-model-value" :title="displayCpuModel">{{ displayCpuModel }}</span>
+
+    <!-- Status Grid -->
+    <div v-else class="status-grid grid gap-3">
+      <!-- CPU Model -->
+      <div class="status-item grid grid-cols-[auto_1fr] items-center gap-3">
+        <label class="font-semibold text-text-secondary text-left whitespace-nowrap">{{ t('statusMonitor.cpuModelLabel') }}</label>
+        <span class="cpu-model-value truncate text-left" :title="displayCpuModel">{{ displayCpuModel }}</span>
       </div>
-      <!-- Added OS Name Display -->
-      <div class="status-item os-name">
-        <label>{{ t('statusMonitor.osLabel') }}</label>
-        <!-- 使用 displayOsName 计算属性 -->
-        <span class="os-name-value" :title="displayOsName">{{ displayOsName }}</span>
+
+      <!-- OS Name -->
+      <div class="status-item grid grid-cols-[auto_1fr] items-center gap-3">
+        <label class="font-semibold text-text-secondary text-left whitespace-nowrap">{{ t('statusMonitor.osLabel') }}</label>
+        <span class="os-name-value truncate text-left" :title="displayOsName">{{ displayOsName }}</span>
       </div>
-      <div class="status-item">
-        <label>{{ t('statusMonitor.cpuLabel') }}</label>
-        <!-- Wrap progress bar and percentage in a div -->
-        <div class="value-wrapper">
-          <div class="progress-bar-container">
-            <div class="progress-bar" :style="{ width: `${serverStatus.cpuPercent ?? 0}%` }"></div>
+
+      <!-- CPU Usage -->
+      <div class="status-item grid grid-cols-[auto_1fr] items-center gap-3">
+        <label class="font-semibold text-text-secondary text-left whitespace-nowrap">{{ t('statusMonitor.cpuLabel') }}</label>
+        <div class="value-wrapper flex items-center gap-2">
+          <div class="progress-bar-container bg-header rounded h-3 overflow-hidden flex-grow"> <!-- Reduced height -->
+            <div class="progress-bar bg-blue-500 h-full transition-width duration-300 ease-in-out" :style="{ width: `${serverStatus.cpuPercent ?? 0}%` }"></div>
           </div>
-          <span>{{ serverStatus.cpuPercent?.toFixed(1) ?? t('statusMonitor.notAvailable') }}%</span>
+          <span class="font-mono text-left text-xs w-12 text-right">{{ serverStatus.cpuPercent?.toFixed(1) ?? t('statusMonitor.notAvailable') }}%</span> <!-- Fixed width and right align -->
         </div>
       </div>
-      <div class="status-item">
-        <label>{{ t('statusMonitor.memoryLabel') }}</label>
-        <div class="value-wrapper">
-          <div class="progress-bar-container">
-            <div class="progress-bar" :style="{ width: `${serverStatus.memPercent ?? 0}%` }"></div>
+
+      <!-- Memory Usage -->
+      <div class="status-item grid grid-cols-[auto_1fr] items-center gap-3">
+        <label class="font-semibold text-text-secondary text-left whitespace-nowrap">{{ t('statusMonitor.memoryLabel') }}</label>
+        <div class="value-wrapper flex items-center gap-2">
+          <div class="progress-bar-container bg-header rounded h-3 overflow-hidden flex-grow">
+            <div class="progress-bar bg-green-500 h-full transition-width duration-300 ease-in-out" :style="{ width: `${serverStatus.memPercent ?? 0}%` }"></div>
           </div>
-          <span class="mem-disk-details">{{ memDisplay }}</span>
+          <span class="mem-disk-details font-mono text-xs whitespace-nowrap text-left">{{ memDisplay }}</span>
         </div>
       </div>
-       <!-- Removed v-if, Swap will always show -->
-       <div class="status-item">
-        <label>{{ t('statusMonitor.swapLabel') }}</label>
-        <div class="value-wrapper">
-          <div class="progress-bar-container">
-            <div class="progress-bar swap-bar" :style="{ width: `${serverStatus.swapPercent ?? 0}%` }"></div>
+
+       <!-- Swap Usage -->
+       <div class="status-item grid grid-cols-[auto_1fr] items-center gap-3">
+        <label class="font-semibold text-text-secondary text-left whitespace-nowrap">{{ t('statusMonitor.swapLabel') }}</label>
+        <div class="value-wrapper flex items-center gap-2">
+          <div class="progress-bar-container bg-header rounded h-3 overflow-hidden flex-grow">
+            <!-- Conditional color for swap -->
+            <div class="progress-bar h-full transition-width duration-300 ease-in-out"
+                 :class="serverStatus.swapPercent && serverStatus.swapPercent > 0 ? 'bg-yellow-500' : 'bg-gray-500'"
+                 :style="{ width: `${serverStatus.swapPercent ?? 0}%` }"></div>
           </div>
-          <span class="mem-disk-details">{{ swapDisplay }}</span>
+          <span class="mem-disk-details font-mono text-xs whitespace-nowrap text-left">{{ swapDisplay }}</span>
         </div>
       </div>
-      <div class="status-item">
-        <label>{{ t('statusMonitor.diskLabel') }}</label> <!-- 移除 (/) -->
-        <div class="value-wrapper">
-          <div class="progress-bar-container">
-            <div class="progress-bar" :style="{ width: `${serverStatus.diskPercent ?? 0}%` }"></div>
+
+      <!-- Disk Usage -->
+      <div class="status-item grid grid-cols-[auto_1fr] items-center gap-3">
+        <label class="font-semibold text-text-secondary text-left whitespace-nowrap">{{ t('statusMonitor.diskLabel') }}</label>
+        <div class="value-wrapper flex items-center gap-2">
+          <div class="progress-bar-container bg-header rounded h-3 overflow-hidden flex-grow">
+            <div class="progress-bar bg-purple-500 h-full transition-width duration-300 ease-in-out" :style="{ width: `${serverStatus.diskPercent ?? 0}%` }"></div>
           </div>
-          <span class="mem-disk-details">{{ diskDisplay }}</span>
+          <span class="mem-disk-details font-mono text-xs whitespace-nowrap text-left">{{ diskDisplay }}</span>
         </div>
       </div>
-      <div class="status-item network-rate">
-          <label>{{ t('statusMonitor.networkLabel') }} ({{ serverStatus.netInterface || '...' }}):</label>
-          <!-- Wrap rates in a div for alignment -->
-          <div class="value-wrapper network-values">
-            <span class="rate down">{{ formatBytesPerSecond(serverStatus.netRxRate) }}</span>
-            <span class="rate up">{{ formatBytesPerSecond(serverStatus.netTxRate) }}</span>
+
+      <!-- Network Rate -->
+      <div class="status-item grid grid-cols-[auto_1fr] items-center gap-3 mt-2">
+          <label class="font-semibold text-text-secondary text-left whitespace-nowrap">{{ t('statusMonitor.networkLabel') }} ({{ serverStatus.netInterface || '...' }}):</label>
+          <div class="network-values flex items-center justify-start gap-4"> <!-- Reduced gap -->
+            <span class="rate down inline-flex items-center gap-1 text-green-500 text-xs whitespace-nowrap">
+              <i class="fas fa-arrow-down w-3 text-center"></i> <!-- Font Awesome icon -->
+              <span class="font-mono">{{ formatBytesPerSecond(serverStatus.netRxRate) }}</span>
+            </span>
+            <span class="rate up inline-flex items-center gap-1 text-orange-500 text-xs whitespace-nowrap">
+               <i class="fas fa-arrow-up w-3 text-center"></i> <!-- Font Awesome icon -->
+               <span class="font-mono">{{ formatBytesPerSecond(serverStatus.netTxRate) }}</span>
+            </span>
           </div>
       </div>
     </div>
-    <!-- Error display moved up for correct v-if/v-else-if logic -->
   </div>
-  <!-- Removed extra closing div -->
 </template>
 
 <script setup lang="ts">
-import { ref, computed, watch } from 'vue'; // 引入 watch
-import { useI18n } from 'vue-i18n'; // 引入 useI18n
+import { ref, computed, watch } from 'vue';
+import { useI18n } from 'vue-i18n';
 
-// 获取 t 函数
 const { t } = useI18n();
 
-// 接口定义，与后端 ServerStatusDetails 匹配
+// Interface remains the same
 interface ServerStatus {
   cpuPercent?: number;
   memPercent?: number;
@@ -97,24 +119,21 @@ interface ServerStatus {
   netRxRate?: number; // Bytes per second
   netTxRate?: number; // Bytes per second
   netInterface?: string;
-  osName?: string; // 操作系统名称
+  osName?: string;
 }
 
-// 更新 Props 定义
 const props = defineProps<{
-  sessionId: string; // 添加会话 ID
-  serverStatus: ServerStatus | null; // 更改名称从 statusData 到 serverStatus
-  statusError?: string | null; // 更改名称从 error 到 statusError
+  sessionId: string;
+  serverStatus: ServerStatus | null;
+  statusError?: string | null;
 }>();
 
-// --- 缓存状态 ---
+// --- Caching logic remains the same ---
 const cachedCpuModel = ref<string | null>(null);
 const cachedOsName = ref<string | null>(null);
 
-// 监听传入的 serverStatus 变化以更新缓存 (更新引用)
 watch(() => props.serverStatus, (newData) => {
   if (newData) {
-    // 仅当新数据有效时更新缓存
     if (newData.cpuModel !== undefined && newData.cpuModel !== null && newData.cpuModel !== '') {
       cachedCpuModel.value = newData.cpuModel;
     }
@@ -122,22 +141,17 @@ watch(() => props.serverStatus, (newData) => {
       cachedOsName.value = newData.osName;
     }
   }
-  // 如果 newData 为 null (例如断开连接)，不清除缓存
-}, { immediate: true }); // 立即执行一次以初始化缓存
+}, { immediate: true });
 
-// --- 显示计算属性 (包含缓存逻辑) - 更新引用 ---
+// --- Computed properties remain the same ---
 const displayCpuModel = computed(() => {
-  // 优先使用当前有效数据，否则回退到缓存，最后是 'N/A'
   return (props.serverStatus?.cpuModel ?? cachedCpuModel.value) || t('statusMonitor.notAvailable');
 });
 
 const displayOsName = computed(() => {
-  // 优先使用当前有效数据，否则回退到缓存，最后是 'N/A'
   return (props.serverStatus?.osName ?? cachedOsName.value) || t('statusMonitor.notAvailable');
 });
 
-
-// 辅助函数：格式化字节/秒为合适的单位 (B, KB, MB, GB)
 const formatBytesPerSecond = (bytes?: number): string => {
     if (bytes === undefined || bytes === null || isNaN(bytes)) return t('statusMonitor.notAvailable');
     if (bytes < 1024) return `${bytes} ${t('statusMonitor.bytesPerSecond')}`;
@@ -146,220 +160,46 @@ const formatBytesPerSecond = (bytes?: number): string => {
     return `${(bytes / (1024 * 1024 * 1024)).toFixed(1)} ${t('statusMonitor.gigaBytesPerSecond')}`;
 };
 
-
-// 辅助函数：格式化 KB 为 GB
 const formatKbToGb = (kb?: number): string => {
-    if (kb === undefined || kb === null) return t('statusMonitor.notAvailable'); // 处理无效输入
-    if (kb === 0) return `0.0 ${t('statusMonitor.gigaBytes')}`; // 处理 0 的情况
+    if (kb === undefined || kb === null) return t('statusMonitor.notAvailable');
+    if (kb === 0) return `0.0 ${t('statusMonitor.gigaBytes')}`;
     const gb = kb / 1024 / 1024;
     return `${gb.toFixed(1)} ${t('statusMonitor.gigaBytes')}`;
 };
 
-// 计算属性用于显示内存信息 (更新引用)
 const memDisplay = computed(() => {
     const data = props.serverStatus;
-    if (!data || data.memUsed === undefined || data.memTotal === undefined) return t('statusMonitor.notAvailable'); // 检查数据有效性
-    const percent = data.memPercent !== undefined ? `(${data.memPercent.toFixed(1)}%)` : '';
-    // 确保 MB 值在是整数时不显示小数
+    if (!data || data.memUsed === undefined || data.memTotal === undefined) return t('statusMonitor.notAvailable');
+    const percent = data.memPercent !== undefined ? `(${(data.memPercent).toFixed(1)}%)` : ''; // Keep 1 decimal for percent
     const usedMb = Number.isInteger(data.memUsed) ? data.memUsed : data.memUsed.toFixed(1);
     const totalMb = Number.isInteger(data.memTotal) ? data.memTotal : data.memTotal.toFixed(1);
-    return `${usedMb} ${t('statusMonitor.megaBytes')} / ${totalMb} ${t('statusMonitor.megaBytes')} ${percent}`;
+    return `${usedMb} / ${totalMb} ${t('statusMonitor.megaBytes')} ${percent}`; // Removed extra space before MB
 });
 
-// 计算属性用于显示磁盘信息 (更新引用)
 const diskDisplay = computed(() => {
     const data = props.serverStatus;
-    if (!data || data.diskUsed === undefined || data.diskTotal === undefined) return t('statusMonitor.notAvailable'); // 检查数据有效性
-    // 百分比代表已用空间
-    const percent = data.diskPercent !== undefined ? `(${data.diskPercent.toFixed(1)}%)` : '';
-    // 显示 已用 / 总量
+    if (!data || data.diskUsed === undefined || data.diskTotal === undefined) return t('statusMonitor.notAvailable');
+    const percent = data.diskPercent !== undefined ? `(${(data.diskPercent).toFixed(1)}%)` : ''; // Keep 1 decimal for percent
     return `${formatKbToGb(data.diskUsed)} / ${formatKbToGb(data.diskTotal)} ${percent}`;
 });
 
-// 计算属性用于显示 Swap 信息 (更新引用)
 const swapDisplay = computed(() => {
     const data = props.serverStatus;
-    // 处理 swap 可能为 undefined 或 0 的情况
     const used = data?.swapUsed ?? 0;
     const total = data?.swapTotal ?? 0;
     const percentVal = data?.swapPercent ?? 0;
 
-    const percent = `(${percentVal.toFixed(1)}%)`;
+    // Only show details if swap total > 0
+    if (total === 0) {
+        return t('statusMonitor.swapNotAvailable'); // Or a more specific message
+    }
+
+    const percent = `(${(percentVal).toFixed(1)}%)`; // Keep 1 decimal for percent
     const usedMb = Number.isInteger(used) ? used : used.toFixed(1);
     const totalMb = Number.isInteger(total) ? total : total.toFixed(1);
-    return `${usedMb} ${t('statusMonitor.megaBytes')} / ${totalMb} ${t('statusMonitor.megaBytes')} ${percent}`;
+    return `${usedMb} / ${totalMb} ${t('statusMonitor.megaBytes')} ${percent}`; // Removed extra space before MB
 });
 
-
 </script>
 
-<style scoped>
-.status-monitor {
-  padding: var(--base-padding); /* Use theme variable */
-  border-left: 1px solid var(--border-color); /* Use theme variable */
-  background-color: var(--app-bg-color); /* Use theme variable */
-  height: 100%;
-  overflow-y: auto;
-  font-size: 0.9em;
-}
-
-.status-monitor h4 {
-  margin-top: 0;
-  margin-bottom: var(--base-padding); /* Use theme variable */
-  border-bottom: 1px solid var(--border-color); /* Use theme variable */
-  padding-bottom: var(--base-margin); /* Use theme variable */
-  font-size: 1em;
-  color: var(--text-color); /* Use theme variable */
-}
-
-.loading-status, .status-error {
-    color: var(--text-color-secondary); /* Use theme variable */
-    text-align: center;
-    margin-top: var(--base-padding); /* Use theme variable */
-}
-.status-error {
-    color: #dc3545;
-}
-
-.status-grid {
-  display: grid;
-  gap: 0.8rem;
-}
-
-.status-item {
-  display: grid;
-  /* Simplified grid columns: Label | Value Area - Further increased label width */
-  grid-template-columns: 75px 1fr;
-  align-items: center;
-  gap: 0.8rem; /* Keep increased gap */
-}
-
-/* New wrapper for value area (progress bar + text or just text) */
-.value-wrapper {
-    display: flex;
-    align-items: center;
-    gap: 0.5rem; /* Space between progress bar and text */
-}
-
-/* Specific style for CPU model row - Keep consistent with general status-item */
-.status-item.cpu-model {
-  /* grid-template-columns is inherited */
-  /* gap is inherited */
-  margin-bottom: 0.5rem; /* Add some space below CPU model */
-}
-.cpu-model-value {
-    white-space: nowrap;
-    overflow: hidden;
-    text-overflow: ellipsis;
-    /* No longer needs grid-column span */
-    text-align: left;
-    color: var(--text-color); /* Use theme variable */
-}
-
-/* Specific style for OS name row - Keep consistent with general status-item */
-.status-item.os-name {
-  /* grid-template-columns is inherited */
-  /* Ensure the item itself doesn't align right if the parent has text-align */
-   text-align: left;
-}
-/* Increased specificity to override generic span rule */
-/* OS name value should just occupy the second column */
-.status-item.os-name .os-name-value {
-    white-space: nowrap;
-    overflow: hidden;
-    text-overflow: ellipsis;
-    text-align: left; /* Explicitly left align text */
-    /* justify-self: start; No longer needed with 2-col grid */
-    color: var(--text-color); /* Use theme variable */
-    min-width: auto; /* Override generic min-width */
-}
-
-
-.status-item label {
-  font-weight: bold;
-  color: var(--text-color-secondary); /* Use theme variable */
-  text-align: left; /* 改为左对齐 */
-  white-space: nowrap;
-}
-
-.progress-bar-container {
-  background-color: var(--header-bg-color); /* Use theme variable */
-  border-radius: 0.25rem;
-  height: 1rem; /* Adjust height */
-  overflow: hidden;
-  flex-grow: 1;
-}
-
-.progress-bar {
-  background-color: var(--button-bg-color); /* Use theme variable for default bar */
-  height: 100%;
-  transition: width 0.3s ease-in-out;
-  text-align: center;
-  color: white;
-  font-size: 0.75em;
-  line-height: 1rem; /* Match container height */
-}
-.progress-bar.swap-bar {
-    background-color: #ffc107; /* Yellow for Swap */
-}
-
-
-.status-item span:not(.cpu-model-value) { /* Style for percentage spans */
-  font-variant-numeric: tabular-nums; /* Keep numbers aligned */
-  min-width: 45px; /* Ensure space for percentage */
-  text-align: left; /* 改为左对齐 */
-  color: var(--text-color); /* Use theme variable */
-}
-
-.mem-disk-details {
-    font-size: 0.9em; /* Slightly smaller font for details */
-    white-space: nowrap;
-    text-align: left; /* 改为左对齐 */
-}
-
-/* Network Rate Styles */
-/* Network Rate Styles - uses the 2-col grid */
-.status-item.network-rate {
-    /* grid-template-columns is inherited */
-    margin-top: 0.5rem; /* Add space above network */
-    align-items: center; /* Try centering label and rates vertically */
-}
-/* Adjust network value wrapper */
-.network-values {
-    justify-content: start; /* Align rates to the start */
-    gap: 1rem; /* Increase gap between rates */
-    /* Removed margin-left, rely on grid gap */
-    /* Ensure the wrapper itself aligns correctly if needed */
-    /* align-self: center; */ /* Or baseline */
-}
-.network-rate .rate {
-    font-size: 0.9em;
-    white-space: nowrap;
-    text-align: left; /* 改为左对齐 */
-    min-width: auto; /* Remove min-width or adjust */
-    /* Rely on parent flexbox for alignment */
-    display: inline-flex; /* Ensure pseudo-element is part of flex flow */
-    align-items: center; /* Vertically align arrow with text */
-    gap: 0.3em; /* Add space between arrow and text */
-}
-.network-rate .rate.down {
-    color: #28a745; /* Green for download */
-}
-.network-rate .rate.down::before {
-    content: '⬇';
-    /* Removed absolute positioning */
-    font-size: 1em; /* Match parent font size */
-    line-height: 1; /* Adjust line-height for better vertical alignment */
-}
-
-.network-rate .rate.up {
-    color: #fd7e14; /* Orange for upload */
-}
-.network-rate .rate.up::before {
-    content: '⬆';
-    /* Removed absolute positioning */
-    font-size: 1em; /* Match parent font size */
-    line-height: 1; /* Adjust line-height for better vertical alignment */
-}
-
-</style>
+<!-- No <style scoped> needed anymore -->
diff --git a/packages/frontend/src/locales/en.json b/packages/frontend/src/locales/en.json
index 6020fd5..5b050eb 100644
--- a/packages/frontend/src/locales/en.json
+++ b/packages/frontend/src/locales/en.json
@@ -389,6 +389,7 @@
     "gigaBytesPerSecond": "GB/s",
     "megaBytes": "MB",
     "gigaBytes": "GB",
+    "swapNotAvailable": "Swap Unavailable",
     "noActiveSession": "No active session"
   },
   "tags": {
diff --git a/packages/frontend/src/locales/zh.json b/packages/frontend/src/locales/zh.json
index 66ffd0a..9cd0be4 100644
--- a/packages/frontend/src/locales/zh.json
+++ b/packages/frontend/src/locales/zh.json
@@ -389,6 +389,7 @@
     "gigaBytesPerSecond": "GB/s",
     "megaBytes": "MB",
     "gigaBytes": "GB",
+    "swapNotAvailable": "Swap 不可用",
     "noActiveSession": "无活动会话"
   },
   "tags": {