diff --git a/frontend/src/components/LLMSettings.vue b/frontend/src/components/LLMSettings.vue
index 01b956b..44d71ba 100644
--- a/frontend/src/components/LLMSettings.vue
+++ b/frontend/src/components/LLMSettings.vue
@@ -1,140 +1,181 @@
 <template>
-  <n-card title="🤖 AI 模型配置" size="small">
-    <n-space vertical>
-      <!-- 提供商选择 -->
-      <n-form-item label="LLM 提供商">
-        <n-select
-          v-model:value="config.provider"
-          :options="providerOptions"
-          @update:value="onProviderChange"
-          style="width: 200px"
+  <div class="settings-page">
+    <!-- 左侧窄边栏 -->
+    <aside class="settings-sidebar">
+      <nav class="sidebar-nav">
+        <a
+          v-for="item in navItems"
+          :key="item.key"
+          :class="['nav-item', { active: activeTab === item.key }]"
+          @click="activeTab = item.key"
         >
-          <template #label="{ option }">
-            <n-space align="center">
-              <span>{{ option.label }}</span>
-              <n-tag v-if="option.cloud" type="info" size="small">云端</n-tag>
-              <n-tag v-else type="success" size="small">本地</n-tag>
-            </n-space>
-          </template>
-        </n-select>
-      </n-form-item>
+          <component :is="item.icon" :size="18" :stroke-width="1.5" />
+          <span>{{ item.label }}</span>
+        </a>
+      </nav>
 
-      <!-- 提供商说明 -->
-      <n-alert v-if="providerInfo" :type="providerInfo.type" size="small">
-        {{ providerInfo.text }}
-      </n-alert>
+      <!-- 底部状态 -->
+      <div class="sidebar-footer">
+        <div class="connection-status">
+          <span :class="['status-dot', { connected: isConnected }]"></span>
+          <span class="status-text">{{ statusText }}</span>
+        </div>
+      </div>
+    </aside>
 
-      <!-- API 密钥输入 -->
-      <n-divider />
-      <n-text depth="3" style="font-size: 12px;">API 密钥配置</n-text>
+    <!-- 主内容区 -->
+    <main class="settings-main">
+      <div class="settings-content">
+        <!-- 页面标题 -->
+        <header class="page-header">
+          <h1>设置</h1>
+          <p class="page-description">配置 AI 模型提供商和连接参数</p>
+        </header>
 
-      <n-form-item v-if="config.provider === 'deepseek'" label="DeepSeek API Key">
-        <n-input
-          v-model:value="config.deepseek_api_key"
-          type="password"
-          show-password-on="click"
-          placeholder="sk-..."
-          style="width: 300px"
-        />
-        <template #feedback>
-          <n-text depth="3" style="font-size: 11px;">
-            获取地址: <n-a href="https://platform.deepseek.com/api_keys" target="_blank">platform.deepseek.com</n-a>
-          </n-text>
-        </template>
-      </n-form-item>
+        <!-- 分割线 -->
+        <hr class="divider">
 
-      <n-form-item v-if="config.provider === 'openai'" label="OpenAI API Key">
-        <n-input
-          v-model:value="config.openai_api_key"
-          type="password"
-          show-password-on="click"
-          placeholder="sk-..."
-          style="width: 300px"
-        />
-        <template #feedback>
-          <n-text depth="3" style="font-size: 11px;">
-            获取地址: <n-a href="https://platform.openai.com/api-keys" target="_blank">platform.openai.com</n-a>
-          </n-text>
-        </template>
-      </n-form-item>
+        <!-- 供应商选择 -->
+        <section class="settings-section">
+          <h2 class="section-title">模型提供商</h2>
 
-      <n-form-item v-if="config.provider === 'qwen'" label="Qwen API Key">
-        <n-input
-          v-model:value="config.qwen_api_key"
-          type="password"
-          show-password-on="click"
-          placeholder="sk-..."
-          style="width: 300px"
-        />
-        <template #feedback>
-          <n-text depth="3" style="font-size: 11px;">
-            获取地址: <n-a href="https://dashscope.console.aliyun.com/apiKey" target="_blank">dashscope.console.aliyun.com</n-a>
-          </n-text>
-        </template>
-      </n-form-item>
+          <!-- Segmented Control 风格 -->
+          <div class="provider-selector">
+            <button
+              v-for="provider in providers"
+              :key="provider.value"
+              :class="['provider-btn', { active: config.provider === provider.value }]"
+              @click="selectProvider(provider.value)"
+            >
+              {{ provider.label }}
+            </button>
+          </div>
 
-      <n-form-item v-if="config.provider === 'ollama'" label="Ollama 地址">
-        <n-input
-          v-model:value="config.ollama_host"
-          placeholder="http://127.0.0.1:11434"
-          style="width: 300px"
-        />
-        <template #feedback>
-          <n-button text type="primary" @click="checkOllamaStatus" :loading="checking">
-            🔄 检测状态
-          </n-button>
-        </template>
-      </n-form-item>
+          <!-- 选中提供商说明 -->
+          <div class="provider-info">
+            <span class="provider-desc">{{ selectedProvider.desc }}</span>
+            <span class="provider-pricing">{{ selectedProvider.pricing }}</span>
+          </div>
+        </section>
 
-      <!-- 保存按钮 -->
-      <n-space>
-        <n-button type="primary" @click="saveConfig" :loading="saving">
-          保存配置
-        </n-button>
-        <n-button v-if="needsRestart" type="warning" @click="showRestartModal = true">
-          需要重启后端
-        </n-button>
-      </n-space>
+        <!-- 连接配置 -->
+        <section class="settings-section">
+          <h2 class="section-title">连接配置</h2>
 
-      <!-- 当前配置状态 -->
-      <n-divider />
-      <n-space>
-        <n-tag v-if="configStatus.has_deepseek_key" type="success" size="small">DeepSeek 已配置</n-tag>
-        <n-tag v-if="configStatus.has_openai_key" type="success" size="small">OpenAI 已配置</n-tag>
-        <n-tag v-if="configStatus.has_qwen_key" type="success" size="small">Qwen 已配置</n-tag>
-      </n-space>
-    </n-space>
+          <!-- API 密钥配置 -->
+          <div v-if="showApiKey" class="form-group">
+            <label class="form-label">API 密钥</label>
+            <input
+              v-model="apiKey"
+              type="password"
+              class="form-input"
+              :placeholder="apiKeyPlaceholder"
+            >
+            <div class="form-hint">
+              获取地址：<a :href="selectedProvider.apiUrl" target="_blank" rel="noopener">{{ selectedProvider.apiLabel }}</a>
+            </div>
+          </div>
+
+          <!-- Ollama 地址配置 -->
+          <div v-if="config.provider === 'ollama'" class="form-group">
+            <label class="form-label">服务地址</label>
+            <input
+              v-model="config.ollama_host"
+              type="text"
+              class="form-input"
+              placeholder="http://127.0.0.1:11434"
+            >
+            <div class="form-actions">
+              <button class="btn-secondary" @click="testConnection" :disabled="testing">
+                {{ testing ? '测试中...' : '测试连接' }}
+              </button>
+            </div>
+          </div>
+
+          <!-- 高级选项（折叠） -->
+          <details class="advanced-options">
+            <summary>高级选项</summary>
+            <div class="advanced-content">
+              <div class="form-row">
+                <div class="form-group">
+                  <label class="form-label">Temperature</label>
+                  <input v-model.number="config.temperature" type="number" step="0.1" min="0" max="2" class="form-input">
+                </div>
+                <div class="form-group">
+                  <label class="form-label">Max Tokens</label>
+                  <input v-model.number="config.max_tokens" type="number" step="128" min="128" max="8192" class="form-input">
+                </div>
+              </div>
+            </div>
+          </details>
+        </section>
+
+        <!-- 底部操作栏 -->
+        <footer class="settings-footer">
+          <div class="footer-status">{{ saveStatus }}</div>
+          <div class="footer-actions">
+            <button class="btn-ghost" @click="resetConfig">重置</button>
+            <button class="btn-primary" @click="saveConfig" :disabled="saving">
+              {{ saving ? '保存中...' : '保存配置' }}
+            </button>
+          </div>
+        </footer>
+      </div>
+    </main>
 
     <!-- 重启确认弹窗 -->
-    <n-modal v-model:show="showRestartModal" preset="dialog" title="重启后端服务">
-      <template #header>
-        <n-icon size="24" color="#f0a020"><RestartIcon /></n-icon>
-        <span style="margin-left: 8px;">重启后端服务</span>
-      </template>
-      LLM 配置已更改，需要重启后端服务才能生效。
-      <template #action>
-        <n-space>
-          <n-button @click="showRestartModal = false">取消</n-button>
-          <n-button type="warning" @click="restartBackend">
-            确认重启
-          </n-button>
-        </n-space>
-      </template>
-    </n-modal>
-  </n-card>
+    <div v-if="showRestartModal" class="modal-overlay" @click.self="showRestartModal = false">
+      <div class="modal">
+        <div class="modal-header">
+          <h3>需要重启后端</h3>
+          <button class="modal-close" @click="showRestartModal = false">×</button>
+        </div>
+        <div class="modal-body">
+          <p>LLM 配置已更改，需要重启后端服务才能生效。</p>
+        </div>
+        <div class="modal-footer">
+          <button class="btn-ghost" @click="showRestartModal = false">取消</button>
+          <button class="btn-warning" @click="restartBackend">确认重启</button>
+        </div>
+      </div>
+    </div>
+  </div>
 </template>
 
 <script setup lang="ts">
-import { ref, reactive, computed, onMounted } from 'vue'
-import { NCard, NSpace, NSelect, NFormItem, NInput, NButton, NTag, NAlert, NDivider, NText, NA, NModal, NIcon, useMessage } from 'naive-ui'
+import { ref, reactive, computed, onMounted, h } from 'vue'
 import axios from 'axios'
-import { h } from 'vue'
 
-const RestartIcon = () => h('svg', { viewBox: '0 0 24 24', fill: 'currentColor' }, [
-  h('path', { d: 'M12 4V1L8 5l4 4V6c3.31 0 6 2.69 6 6 0 1.01-.25 1.97-.7 2.8l1.46 1.46C19.54 15.03 20 13.57 20 12c0-4.42-3.58-8-8-8zm0 14c-3.31 0-6-2.69-6-6 0-1.01.25-1.97.7-2.8L5.24 7.74C4.46 8.97 4 10.43 4 12c0 4.42 3.58 8 8 8v3l4-4-4-4v3z' })
+// Lucide-style icons (inline SVG)
+const SettingsIcon = () => h('svg', { viewBox: '0 0 24 24', fill: 'none', stroke: 'currentColor', 'stroke-width': 1.5 }, [
+  h('path', { d: 'M12.22 2h-.44a2 2 0 0 0-2 2v.18a2 2 0 0 1-1 1.73l-.43.25a2 2 0 0 1-2 0l-.15-.08a2 2 0 0 0-2.73.73l-.22.38a2 2 0 0 0 .73 2.73l.15.1a2 2 0 0 1 1 1.72v.51a2 2 0 0 1-1 1.74l-.15.09a2 2 0 0 0-.73 2.73l.22.38a2 2 0 0 0 2.73.73l.15-.08a2 2 0 0 1 2 0l.43.25a2 2 0 0 1 1 1.73V20a2 2 0 0 0 2 2h.44a2 2 0 0 0 2-2v-.18a2 2 0 0 1 1-1.73l.43-.25a2 2 0 0 1 2 0l.15.08a2 2 0 0 0 2.73-.73l.22-.39a2 2 0 0 0-.73-2.73l-.15-.08a2 2 0 0 1-1-1.74v-.5a2 2 0 0 1 1-1.74l.15-.09a2 2 0 0 0 .73-2.73l-.22-.38a2 2 0 0 0-2.73-.73l-.15.08a2 2 0 0 1-2 0l-.43-.25a2 2 0 0 1-1-1.73V4a2 2 0 0 0-2-2z' }),
+  h('circle', { cx: '12', cy: '12', r: '3' })
 ])
 
-const message = useMessage()
+const CloudIcon = () => h('svg', { viewBox: '0 0 24 24', fill: 'none', stroke: 'currentColor', 'stroke-width': 1.5 }, [
+  h('path', { d: 'M17.5 19c0-1.7-1.3-3-3-3h-11c-1.7 0-3 1.3-3 3s1.3 3 3 3h11c1.7 0 3-1.3 3-3z' }),
+  h('path', { d: 'M17.5 16c2.5 0 4.5-2 4.5-4.5S20 7 17.5 7c-.4 0-.8.1-1.2.2C15.6 5.7 13.9 5 12 5c-2.8 0-5.1 2-5.7 4.7-.5-.2-1-.2-1.5-.2-2.5 0-4.5 2-4.5 4.5s2 4.5 4.5 4.5h12.2z' })
+])
+
+const KeyIcon = () => h('svg', { viewBox: '0 0 24 24', fill: 'none', stroke: 'currentColor', 'stroke-width': 1.5 }, [
+  h('path', { d: 'M21 2l-2 2m-7.61 7.61a5.5 5.5 0 1 1-7.778 7.778 5.5 5.5 0 0 1 7.777-7.777zm0 0L15.5 7.5m0 0l3 3L22 7l-3-3m-3.5 3.5L19 4' })
+])
+
+const ServerIcon = () => h('svg', { viewBox: '0 0 24 24', fill: 'none', stroke: 'currentColor', 'stroke-width': 1.5 }, [
+  h('rect', { x: '2', y: '2', width: '20', height: '8', rx: '2', ry: '2' }),
+  h('rect', { x: '2', y: '14', width: '20', height: '8', rx: '2', ry: '2' }),
+  h('line', { x1: '6', y1: '6', x2: '6.01', y2: '6' }),
+  h('line', { x1: '6', y1: '18', x2: '6.01', y2: '18' })
+])
+
+// 侧边栏导航
+const navItems = [
+  { key: 'provider', label: '模型服务', icon: CloudIcon },
+  { key: 'general', label: '通用设置', icon: SettingsIcon },
+  { key: 'advanced', label: '高级选项', icon: KeyIcon }
+]
+
+const activeTab = ref('provider')
 
 // 配置数据
 const config = reactive({
@@ -142,111 +183,543 @@ const config = reactive({
   deepseek_api_key: '',
   openai_api_key: '',
   qwen_api_key: '',
-  ollama_host: 'http://127.0.0.1:11434'
+  ollama_host: 'http://127.0.0.1:11434',
+  temperature: 0.7,
+  max_tokens: 2048
 })
 
-const configStatus = reactive({
-  has_deepseek_key: false,
-  has_openai_key: false,
-  has_qwen_key: false
-})
-
-const saving = ref(false)
-const checking = ref(false)
-const showRestartModal = ref(false)
-const needsRestart = ref(false)
-
-// 提供商选项
-const providerOptions = [
-  { label: 'DeepSeek', value: 'deepseek', cloud: true },
-  { label: 'OpenAI', value: 'openai', cloud: true },
-  { label: 'Qwen (阿里云)', value: 'qwen', cloud: true },
-  { label: 'Ollama (本地)', value: 'ollama', cloud: false }
+// 提供商数据
+const providers = [
+  { value: 'deepseek', label: 'DeepSeek', desc: '高质量、低成本的大语言模型', pricing: '¥1/百万 tokens', apiUrl: 'https://platform.deepseek.com/api_keys', apiLabel: 'platform.deepseek.com' },
+  { value: 'openai', label: 'OpenAI', desc: '业界领先的 GPT 系列模型', pricing: '~$15/百万 tokens', apiUrl: 'https://platform.openai.com/api-keys', apiLabel: 'platform.openai.com' },
+  { value: 'qwen', label: 'Qwen', desc: '阿里云通义千问系列', pricing: '¥0.5/百万 tokens', apiUrl: 'https://dashscope.console.aliyun.com/apiKey', apiLabel: 'dashscope.console.aliyun.com' },
+  { value: 'ollama', label: 'Ollama', desc: '本地运行的开源模型', pricing: '免费', apiUrl: '', apiLabel: '' }
 ]
 
-// 提供商信息
-const providerInfo = computed(() => {
-  const info = {
-    deepseek: { type: 'info', text: '💰 便宜好用，¥1/百万 tokens，推荐首选' },
-    openai: { type: 'info', text: '🚀 GPT-4 效果最好，约 ¥15/百万 tokens' },
-    qwen: { type: 'info', text: '🇨🇳 阿里云，国内稳定，¥0.5/百万 tokens' },
-    ollama: { type: 'success', text: '🏠 完全免费，数据隐私，但占用 CPU/内存' }
+// 状态
+const saving = ref(false)
+const testing = ref(false)
+const showRestartModal = ref(false)
+const saveStatus = ref('')
+const isConnected = ref(false)
+const statusText = ref('未连接')
+
+// 计算属性
+const selectedProvider = computed(() => providers.find(p => p.value === config.provider) || providers[0])
+
+const showApiKey = computed(() => ['deepseek', 'openai', 'qwen'].includes(config.provider))
+
+const apiKey = computed({
+  get: () => {
+    if (config.provider === 'deepseek') return config.deepseek_api_key
+    if (config.provider === 'openai') return config.openai_api_key
+    if (config.provider === 'qwen') return config.qwen_api_key
+    return ''
+  },
+  set: (value: string) => {
+    if (config.provider === 'deepseek') config.deepseek_api_key = value
+    if (config.provider === 'openai') config.openai_api_key = value
+    if (config.provider === 'qwen') config.qwen_api_key = value
   }
-  return info[config.provider] || null
 })
 
-// 加载配置
-const loadConfig = async () => {
+const apiKeyPlaceholder = computed(() => {
+  if (config.provider === 'deepseek') return 'sk-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
+  if (config.provider === 'openai') return 'sk-proj-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
+  if (config.provider === 'qwen') return 'sk-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
+  return ''
+})
+
+// 方法
+const selectProvider = (value: string) => {
+  config.provider = value
+  saveStatus.value = `已切换到 ${providers.find(p => p.value === value)?.label}`
+}
+
+const testConnection = async () => {
+  testing.value = true
   try {
-    const response = await axios.get('http://127.0.0.1:8000/ai/config')
-    Object.assign(config, {
-      provider: response.data.provider,
-      ollama_host: response.data.ollama_host
-    })
-    Object.assign(configStatus, {
-      has_deepseek_key: response.data.has_deepseek_key,
-      has_openai_key: response.data.has_openai_key,
-      has_qwen_key: response.data.has_qwen_key
-    })
-  } catch (error) {
-    console.error('加载配置失败:', error)
+    const response = await axios.get(`${config.ollama_host.replace(':11434', ':8000')}/ai/status`, { timeout: 5000 })
+    if (response.data.status === 'ready') {
+      isConnected.value = true
+      statusText.value = `${response.data.model_count} 个模型`
+      saveStatus.value = '连接成功'
+    } else {
+      isConnected.value = false
+      statusText.value = '未就绪'
+    }
+  } catch {
+    isConnected.value = false
+    statusText.value = '连接失败'
+  } finally {
+    testing.value = false
   }
 }
 
-// 保存配置
+const loadConfig = async () => {
+  try {
+    const response = await axios.get('http://127.0.0.1:8000/ai/config')
+    config.provider = response.data.provider
+    config.ollama_host = response.data.ollama_host
+  } catch {}
+}
+
 const saveConfig = async () => {
   saving.value = true
   try {
-    const response = await axios.post('http://127.0.0.1:8000/ai/config', {
+    await axios.post('http://127.0.0.1:8000/ai/config', {
       provider: config.provider,
       deepseek_api_key: config.deepseek_api_key || undefined,
       openai_api_key: config.openai_api_key || undefined,
       qwen_api_key: config.qwen_api_key || undefined
     })
-    message.success('配置已保存，需要重启后端才能生效')
-    needsRestart.value = true
-    await loadConfig()
-  } catch (error) {
-    message.error('保存失败: ' + (error.response?.data?.detail || error.message))
+    saveStatus.value = '配置已保存'
+    showRestartModal.value = true
+  } catch (error: any) {
+    saveStatus.value = '保存失败: ' + (error.response?.data?.detail || error.message)
   } finally {
     saving.value = false
   }
 }
 
-// 检查 Ollama 状态
-const checkOllamaStatus = async () => {
-  checking.value = true
-  try {
-    const response = await axios.get(config.ollama_host.replace(':11434', ':8000') + '/ai/status', { timeout: 3000 })
-    if (response.data.status === 'ready') {
-      message.success(`Ollama 已就绪，${response.data.model_count} 个模型`)
-    } else {
-      message.warning('Ollama 未运行')
-    }
-  } catch (error) {
-    message.warning('无法连接到 Ollama')
-  } finally {
-    checking.value = false
-  }
+const resetConfig = () => {
+  config.provider = 'deepseek'
+  config.temperature = 0.7
+  config.max_tokens = 2048
+  saveStatus.value = '配置已重置'
 }
 
-// 重启后端
 const restartBackend = async () => {
   try {
     await axios.post('http://127.0.0.1:8000/ai/stop')
-    message.info('后端已停止，请手动启动: ./start.sh')
+    saveStatus.value = '后端已停止，请手动启动'
     showRestartModal.value = false
-    needsRestart.value = false
-  } catch (error) {
-    message.error('停止失败: ' + (error.response?.data?.detail || error.message))
+  } catch {
+    saveStatus.value = '停止失败'
   }
 }
 
-const onProviderChange = () => {
-  needsRestart.value = true
-}
-
 onMounted(() => {
   loadConfig()
 })
 </script>
+
+<style scoped>
+/* 全局样式 */
+.settings-page {
+  display: flex;
+  height: 100%;
+  background: #09090b;
+  font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'PingFang SC', sans-serif;
+}
+
+/* 左侧边栏 */
+.settings-sidebar {
+  width: 200px;
+  border-right: 1px solid #27272a;
+  display: flex;
+  flex-direction: column;
+}
+
+.sidebar-nav {
+  flex: 1;
+  padding: 16px 12px;
+}
+
+.nav-item {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 8px 12px;
+  font-size: 14px;
+  color: #a1a1aa;
+  text-decoration: none;
+  border-radius: 6px;
+  margin-bottom: 2px;
+  cursor: pointer;
+  transition: all 0.15s ease;
+}
+
+.nav-item:hover {
+  background: #18181b;
+  color: #fafafa;
+}
+
+.nav-item.active {
+  background: #27272a;
+  color: #fafafa;
+}
+
+.sidebar-footer {
+  padding: 16px;
+  border-top: 1px solid #27272a;
+}
+
+.connection-status {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  font-size: 12px;
+  color: #71717a;
+}
+
+.status-dot {
+  width: 6px;
+  height: 6px;
+  border-radius: 50%;
+  background: #ef4444;
+}
+
+.status-dot.connected {
+  background: #22c55e;
+}
+
+/* 主内容区 */
+.settings-main {
+  flex: 1;
+  display: flex;
+  justify-content: center;
+  overflow-y: auto;
+}
+
+.settings-content {
+  width: 100%;
+  max-width: 720px;
+  padding: 40px 48px 120px;
+}
+
+/* 页面标题 */
+.page-header h1 {
+  font-size: 24px;
+  font-weight: 600;
+  color: #fafafa;
+  margin: 0 0 8px 0;
+}
+
+.page-description {
+  font-size: 14px;
+  color: #71717a;
+  margin: 0;
+}
+
+.divider {
+  border: none;
+  border-top: 1px solid #27272a;
+  margin: 24px 0 32px;
+}
+
+/* 设置区块 */
+.settings-section {
+  margin-bottom: 40px;
+}
+
+.section-title {
+  font-size: 14px;
+  font-weight: 600;
+  color: #a1a1aa;
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+  margin: 0 0 16px 0;
+}
+
+/* 供应商选择器 - Segmented Control 风格 */
+.provider-selector {
+  display: flex;
+  background: #18181b;
+  border: 1px solid #27272a;
+  border-radius: 8px;
+  padding: 4px;
+  margin-bottom: 16px;
+}
+
+.provider-btn {
+  flex: 1;
+  padding: 10px 16px;
+  font-size: 14px;
+  font-weight: 500;
+  color: #a1a1aa;
+  background: transparent;
+  border: none;
+  border-radius: 6px;
+  cursor: pointer;
+  transition: all 0.15s ease;
+}
+
+.provider-btn:hover {
+  color: #fafafa;
+}
+
+.provider-btn.active {
+  background: #27272a;
+  color: #fafafa;
+  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
+}
+
+.provider-info {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+}
+
+.provider-desc {
+  font-size: 13px;
+  color: #71717a;
+}
+
+.provider-pricing {
+  font-size: 12px;
+  color: #52525b;
+  padding: 4px 8px;
+  background: #18181b;
+  border-radius: 4px;
+}
+
+/* 表单 */
+.form-group {
+  margin-bottom: 20px;
+}
+
+.form-label {
+  display: block;
+  font-size: 13px;
+  font-weight: 500;
+  color: #a1a1aa;
+  margin-bottom: 8px;
+}
+
+.form-input {
+  width: 100%;
+  height: 36px;
+  padding: 0 12px;
+  font-size: 14px;
+  color: #fafafa;
+  background: #18181b;
+  border: 1px solid #27272a;
+  border-radius: 6px;
+  box-sizing: border-box;
+  transition: border-color 0.15s ease;
+}
+
+.form-input:focus {
+  outline: none;
+  border-color: #4f46e5;
+}
+
+.form-input::placeholder {
+  color: #52525b;
+}
+
+.form-hint {
+  font-size: 12px;
+  color: #52525b;
+  margin-top: 6px;
+}
+
+.form-hint a {
+  color: #52525b;
+  text-decoration: underline;
+}
+
+.form-hint a:hover {
+  color: #71717a;
+}
+
+.form-actions {
+  margin-top: 12px;
+}
+
+.form-row {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 16px;
+}
+
+/* 高级选项 */
+.advanced-options {
+  margin-top: 24px;
+}
+
+.advanced-options summary {
+  font-size: 13px;
+  font-weight: 500;
+  color: #71717a;
+  cursor: pointer;
+  user-select: none;
+  list-style: none;
+}
+
+.advanced-options summary::-webkit-details-marker {
+  display: none;
+}
+
+.advanced-options summary::before {
+  content: '▶';
+  font-size: 10px;
+  margin-right: 6px;
+  transition: transform 0.15s ease;
+}
+
+.advanced-options[open] summary::before {
+  transform: rotate(90deg);
+}
+
+.advanced-content {
+  margin-top: 16px;
+  padding-top: 16px;
+  border-top: 1px solid #27272a;
+}
+
+/* 底部操作栏 */
+.settings-footer {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  padding-top: 24px;
+  border-top: 1px solid #27272a;
+}
+
+.footer-status {
+  font-size: 13px;
+  color: #71717a;
+}
+
+.footer-actions {
+  display: flex;
+  gap: 8px;
+}
+
+/* 按钮样式 */
+.btn-ghost {
+  padding: 8px 16px;
+  font-size: 14px;
+  font-weight: 500;
+  color: #a1a1aa;
+  background: transparent;
+  border: 1px solid #27272a;
+  border-radius: 6px;
+  cursor: pointer;
+  transition: all 0.15s ease;
+}
+
+.btn-ghost:hover:not(:disabled) {
+  color: #fafafa;
+  border-color: #3f3f46;
+}
+
+.btn-secondary {
+  padding: 8px 16px;
+  font-size: 14px;
+  font-weight: 500;
+  color: #fafafa;
+  background: #27272a;
+  border: 1px solid #3f3f46;
+  border-radius: 6px;
+  cursor: pointer;
+  transition: all 0.15s ease;
+}
+
+.btn-secondary:hover:not(:disabled) {
+  background: #3f3f46;
+}
+
+.btn-primary {
+  padding: 8px 16px;
+  font-size: 14px;
+  font-weight: 500;
+  color: #fafafa;
+  background: #4f46e5;
+  border: 1px solid #4f46e5;
+  border-radius: 6px;
+  cursor: pointer;
+  transition: all 0.15s ease;
+}
+
+.btn-primary:hover:not(:disabled) {
+  background: #4338ca;
+}
+
+.btn-primary:disabled,
+.btn-secondary:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+}
+
+.btn-warning {
+  padding: 8px 16px;
+  font-size: 14px;
+  font-weight: 500;
+  color: #fafafa;
+  background: #b91c1c;
+  border: 1px solid #b91c1c;
+  border-radius: 6px;
+  cursor: pointer;
+}
+
+.btn-warning:hover {
+  background: #991b1b;
+}
+
+/* Modal */
+.modal-overlay {
+  position: fixed;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.7);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 1000;
+}
+
+.modal {
+  background: #18181b;
+  border: 1px solid #27272a;
+  border-radius: 12px;
+  width: 100%;
+  max-width: 420px;
+  padding: 24px;
+}
+
+.modal-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 16px;
+}
+
+.modal-header h3 {
+  font-size: 16px;
+  font-weight: 600;
+  color: #fafafa;
+  margin: 0;
+}
+
+.modal-close {
+  width: 28px;
+  height: 28px;
+  font-size: 20px;
+  color: #71717a;
+  background: transparent;
+  border: none;
+  border-radius: 6px;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.modal-close:hover {
+  background: #27272a;
+}
+
+.modal-body {
+  font-size: 14px;
+  color: #a1a1aa;
+  margin-bottom: 24px;
+}
+
+.modal-footer {
+  display: flex;
+  justify-content: flex-end;
+  gap: 8px;
+}
+</style>