<script setup lang="ts">
import { computed, onMounted, onUnmounted, ref } from 'vue';
import { type ModelOption, deepSeekService } from '@/service/api/deepseek';
import { renderMarkdownWithMath as renderContentWithMath } from '@/utils/katex-renderer';

interface ChatMessage {
  id: string;
  from: 'user' | 'ai';
  content: string;
  timestamp: number;
  thinkingTime?: number;
  contentType?: 'text' | 'markdown';
  thinkingContent?: string;
  isShowingThinking?: boolean;
  currentThinkingText?: string;
  displayContent?: string; // 用于渐进显示内容
  isTyping?: boolean; // 是否正在打字
  phase?: 'thinking' | 'answering' | 'completed'; // 当前阶段
}

interface ChatHistory {
  id: string;
  title: string;
  lastMessage: string;
  timestamp: number;
  messages: ChatMessage[];
}

// 响应式数据
const searchText = ref('');
const inputValue = ref('');
const currentChatId = ref('1');
const showStartPage = ref(true);
const messages = ref<ChatMessage[]>([]);
const isAiThinking = ref(false);
const thinkingStartTime = ref(0);
const thinkingTime = ref(0);
const thinkingInterval = ref<NodeJS.Timeout | null>(null);
const lastThinkingTime = ref(0);

// 配置相关
const showConfig = ref(false);
const selectedModelId = ref('deepseek');
const testing = ref(false);
const modelOptions = ref<ModelOption[]>([]);

// 聊天历史数据
const chatHistory = ref<ChatHistory[]>([
  {
    id: '1',
    title: '新对话',
    lastMessage: '',
    timestamp: Date.now(),
    messages: []
  }
]);

// 计算属性
const filteredChatHistory = computed(() => {
  if (!searchText.value) return chatHistory.value;
  return chatHistory.value.filter(chat => chat.title.toLowerCase().includes(searchText.value.toLowerCase()));
});

const currentChat = computed(() => {
  return chatHistory.value.find(chat => chat.id === currentChatId.value);
});

const isApiConfigured = computed(() => {
  return selectedModelId.value !== '';
});

const currentModelName = computed(() => {
  if (!selectedModelId.value) return 'AI助手';
  const currentModel = modelOptions.value.find(model => model.id === selectedModelId.value);
  return currentModel?.name || 'AI助手';
});

// 聊天容器引用
const chatContentRef = ref<HTMLElement | null>(null);

// 滚动到底部
const scrollToBottom = () => {
  if (chatContentRef.value) {
    setTimeout(() => {
      if (chatContentRef.value) {
        chatContentRef.value.scrollTop = chatContentRef.value.scrollHeight;
      }
    }, 50);
  }
};

const newChat = () => {
  const newChatId = `chat_${Date.now()}`;
  const newChatItem: ChatHistory = {
    id: newChatId,
    title: '新对话',
    lastMessage: '',
    timestamp: Date.now(),
    messages: []
  };

  chatHistory.value.unshift(newChatItem);
  currentChatId.value = newChatId;
  showStartPage.value = true;
  messages.value = [];
  inputValue.value = '';
};

const switchChat = (chatId: string) => {
  const chat = chatHistory.value.find(c => c.id === chatId);
  if (chat) {
    currentChatId.value = chatId;
    messages.value = [...chat.messages];
    showStartPage.value = chat.messages.length === 0;
  }
};

// 配置相关方法
const onModelChange = () => {
  if (selectedModelId.value) {
    deepSeekService.switchModel(selectedModelId.value);
  }
};

const saveConfig = () => {
  localStorage.setItem('deepseek-selected-model', selectedModelId.value);
  deepSeekService.switchModel(selectedModelId.value);
  showConfig.value = false;
  // alert('配置已保存！');
};

const testConnection = async () => {
  testing.value = true;
  try {
    deepSeekService.switchModel(selectedModelId.value);
    await deepSeekService.chat([{ role: 'user', content: 'Hello' }], { maxTokens: 10 });
    // alert('连接测试成功！');
  } catch (error) {
    // alert(`连接测试失败: ${error instanceof Error ? error.message : '未知错误'}`);
  } finally {
    testing.value = false;
  }
};

// 思考相关方法
const startThinking = () => {
  isAiThinking.value = true;
  thinkingStartTime.value = Date.now();
  thinkingTime.value = 0;

  thinkingInterval.value = setInterval(() => {
    thinkingTime.value = Math.floor((Date.now() - thinkingStartTime.value) / 1000);
  }, 1000);
};

const stopThinking = () => {
  isAiThinking.value = false;
  if (thinkingInterval.value) {
    clearInterval(thinkingInterval.value);
    thinkingInterval.value = null;
  }
};

// 模拟思考过程显示
const showThinkingProcess = (message: ChatMessage, content: string) => {
  let currentIndex = 0;
  message.currentThinkingText = '';
  message.isShowingThinking = true;

  const typeNextChar = () => {
    if (currentIndex < content.length) {
      message.currentThinkingText += content[currentIndex];
      currentIndex += 1;
      setTimeout(typeNextChar, 15); // 快速显示思考过程
    } else {
      message.isShowingThinking = false;
    }
  };

  typeNextChar();
};

// 更新聊天历史
const updateChatHistory = () => {
  const currentChatItem = chatHistory.value.find(chat => chat.id === currentChatId.value);
  if (currentChatItem) {
    currentChatItem.messages = [...messages.value];
    currentChatItem.lastMessage = messages.value[messages.value.length - 1]?.content || '';
    currentChatItem.timestamp = Date.now();

    // 如果是第一条消息，更新聊天标题
    if (currentChatItem.title === '新对话' && messages.value.length > 0) {
      const firstUserMessage = messages.value.find(msg => msg.from === 'user');
      if (firstUserMessage) {
        currentChatItem.title =
          firstUserMessage.content.slice(0, 20) + (firstUserMessage.content.length > 20 ? '...' : '');
      }
    }
  }
};

// 混合方案：思考过程 + 真正流式输出
const onSubmit = async () => {
  if (!inputValue.value.trim() || !isApiConfigured.value) return;

  showStartPage.value = false;

  // 添加用户消息
  const userMessage: ChatMessage = {
    id: `msg_${Date.now()}`,
    from: 'user',
    content: inputValue.value,
    timestamp: Date.now(),
    contentType: 'text'
  };
  messages.value.push(userMessage);
  scrollToBottom();

  const question = inputValue.value;
  inputValue.value = '';

  // 开始思考状态
  startThinking();

  // 创建AI消息，初始为思考阶段
  const aiMessage: ChatMessage = {
    id: `msg_ai_${Date.now()}`,
    from: 'ai',
    content: '',
    timestamp: Date.now(),
    contentType: 'markdown',
    phase: 'thinking',
    isShowingThinking: true,
    currentThinkingText: '',
    displayContent: '',
    isTyping: false
  };

  messages.value.push(aiMessage);
  scrollToBottom();

  // 显示思考过程
  const thinkingContent = `分析用户问题：${question}

让我仔细思考这个问题的关键要素和可能的解答方向...

首先需要理解问题的核心内容和用户的真实需求。

接下来我会从多个角度来分析这个问题：
1. 基础概念和定义
2. 相关背景信息
3. 可能的解决方案
4. 具体的建议和步骤

正在整理相关信息和最佳回答方案...`;

  showThinkingProcess(aiMessage, thinkingContent);

  try {
    // 等待思考过程显示一段时间后开始流式输出
    setTimeout(async () => {
      stopThinking();
      aiMessage.thinkingTime = Math.floor((Date.now() - thinkingStartTime.value) / 1000);

      // 切换到答案阶段
      aiMessage.phase = 'answering';
      aiMessage.isShowingThinking = false;
      aiMessage.isTyping = true;

      // console.log('🚀 开始流式输出答案...');

      // 更详细的流式日志和强制刷新
      await deepSeekService.streamChat(
        [{ role: 'user', content: question }],

        // onChunk: 每收到一个数据块立即更新
        async (chunk: string) => {
          // console.log(`📦 [${chunkCount}] 收到数据块:`, JSON.stringify(chunk));

          // 累加内容
          aiMessage.content += chunk;

          // 找到消息在数组中的位置并完全替换
          const messageIndex = messages.value.findIndex(m => m.id === aiMessage.id);
          if (messageIndex !== -1) {
            // 创建新的消息对象强制触发响应式更新
            messages.value[messageIndex] = {
              ...aiMessage,
              content: aiMessage.content,
              displayContent: aiMessage.content
            };
            scrollToBottom();
          }

          // console.log(
          //   `📝 更新后总长度: ${aiMessage.content.length}, 显示长度: ${aiMessage.displayContent || aiMessage.content.length}`
          // );
        },

        // onComplete: 流式传输完成
        () => {
          aiMessage.isTyping = false;
          aiMessage.phase = 'completed';
          lastThinkingTime.value = aiMessage.thinkingTime || 0;
          // console.log(`✅ 流式传输完成，共收到 ${chunkCount} 个数据块，最终内容长度: ${aiMessage.content.length}`);
          updateChatHistory();
        },

        // onError: 处理错误
        (error: Error) => {
          // console.error('❌ 流式传输错误:', error);
          aiMessage.content = `抱歉，AI回复失败：${error.message}`;
          aiMessage.displayContent = aiMessage.content;
          aiMessage.isTyping = false;
          aiMessage.phase = 'completed';
        }
      );
    }, 3000); // 3秒思考时间
  } catch (error) {
    stopThinking();
    // console.error('AI回复失败:', error);
    aiMessage.content = `抱歉，AI回复失败：${error instanceof Error ? error.message : '未知错误'}`;
    aiMessage.isTyping = false;
    aiMessage.phase = 'completed';
  }
};

// 其他功能方法
const handleKeyDown = (event: KeyboardEvent) => {
  if (event.key === 'Enter' && !event.shiftKey) {
    event.preventDefault();
    onSubmit();
  }
};

const copyMessage = async (content: string) => {
  try {
    await navigator.clipboard.writeText(content);
    // alert('已复制到剪贴板');
  } catch (error) {
    // console.error('复制失败:', error);
  }
};

// 格式化内容，将思考过程和回答内容组合
const getFormattedContent = (message: ChatMessage): string => {
  let content = '';

  // 如果有思考过程就直接显示
  if (message.currentThinkingText) {
    content += `<think>
${message.currentThinkingText}
</think>

`;
  }

  // 添加最终答案内容
  if (message.content && (message.phase === 'completed' || message.phase === 'answering')) {
    content += message.displayContent || message.content;
  }

  return content;
};

// 使用自定义 markdown 渲染器渲染内容
const renderMarkdownWithMath = (content: string): string => {
  try {
    const result = renderContentWithMath(content);
    console.log('Markdown 渲染结果:', result);
    return result;
  } catch (error) {
    console.error('Markdown 渲染错误:', error);
    return content; // 返回原内容作为fallback
  }
};

const regenerateMessage = async (message: ChatMessage) => {
  // 找到对应的用户消息
  const messageIndex = messages.value.findIndex(msg => msg.id === message.id);
  if (messageIndex > 0) {
    const userMessage = messages.value[messageIndex - 1];
    if (userMessage.from === 'user') {
      // 删除AI消息，重新生成
      messages.value.splice(messageIndex, 1);
      inputValue.value = userMessage.content;
      onSubmit();
    }
  }
};

const showChatMenu = (_chatId: string) => {
  // 实现聊天菜单功能（删除、重命名等）
  // console.log('显示聊天菜单', _chatId);
};

// 生命周期
onMounted(() => {
  // 加载可用模型选项
  modelOptions.value = deepSeekService.getModelOptions();

  // 加载保存的模型选择
  const savedModel = localStorage.getItem('deepseek-selected-model');
  if (savedModel) {
    selectedModelId.value = savedModel;
    deepSeekService.switchModel(savedModel);
  }
});

onUnmounted(() => {
  // 清理定时器
  if (thinkingInterval.value) {
    clearInterval(thinkingInterval.value);
  }
});
</script>

<template>
  <div class="chat-container">
    <!-- 左侧侧边栏 -->
    <div class="sidebar">
      <!-- 顶部工具栏 -->
      <div class="sidebar-header">
        <div class="logo-section">
          <div class="logo">
            <i class="icon-user"></i>
          </div>
          <span class="title">{{ currentModelName }}</span>
        </div>
        <div class="header-actions">
          <i class="icon-add action-btn" @click="newChat"></i>
          <i class="icon-settings action-btn" title="API配置" @click="showConfig = !showConfig"></i>
        </div>
      </div>

      <!-- 模型配置面板 -->
      <div v-if="showConfig" class="config-panel">
        <div class="config-item">
          <label>选择模型:</label>
          <select v-model="selectedModelId" @change="onModelChange">
            <option v-for="model in modelOptions" :key="model.id" :value="model.id">
              {{ model.name }}
            </option>
          </select>
          <div v-if="selectedModelId" class="model-description">
            {{ modelOptions.find(m => m.id === selectedModelId)?.description }}
          </div>
        </div>
        <div class="config-actions">
          <button :disabled="!selectedModelId" class="save-btn" @click="saveConfig">保存</button>
          <button :disabled="testing || !selectedModelId" class="test-btn" @click="testConnection">
            {{ testing ? '测试中...' : '测试连接' }}
          </button>
        </div>
      </div>

      <!-- 搜索框 -->
      <div class="search-section">
        <div class="search-input">
          <i class="icon-search"></i>
          <input v-model="searchText" placeholder="搜索对话" />
        </div>
      </div>

      <!-- 历史对话列表 -->
      <div class="chat-history">
        <div class="history-section">
          <div class="section-title">
            <span>对话历史</span>
          </div>
          <div
            v-for="chat in filteredChatHistory"
            :key="chat.id"
            class="chat-item"
            :class="{ active: currentChatId === chat.id }"
            @click="switchChat(chat.id)"
          >
            <i class="icon-message"></i>
            <span class="chat-title">{{ chat.title }}</span>
            <i class="icon-more" @click.stop="showChatMenu(chat.id)"></i>
          </div>
        </div>
      </div>

      <!-- 状态指示 -->
      <div class="sidebar-footer">
        <div class="status-indicator" :class="{ connected: isApiConfigured }">
          <span>{{ isApiConfigured ? '✅ 模型已选择' : '❌ 未选择模型' }}</span>
        </div>
      </div>
    </div>

    <!-- 右侧聊天区域 -->
    <div class="chat-main">
      <!-- 聊天区域头部 -->
      <div class="chat-header">
        <div class="chat-title-section">
          <span class="chat-title">{{ currentChat?.title || 'DeepSeek AI助手' }}</span>
          <span class="chat-model">DeepSeek Chat</span>
        </div>
        <div class="chat-actions">
          <span v-if="lastThinkingTime" class="token-count">上次思考用时 {{ lastThinkingTime }} 秒</span>
          <i class="icon-more"></i>
        </div>
      </div>

      <!-- 聊天内容区域 -->
      <div v-if="!showStartPage" ref="chatContentRef" class="chat-content">
        <template v-for="msg in messages" :key="`${msg.id}-${msg.phase}-${Date.now()}`">
          <!-- 用户消息 -->
          <div v-if="msg.from === 'user'" class="message user-message">
            <div class="message-content">{{ msg.content }}</div>
            <div class="message-avatar">👤</div>
          </div>

          <!-- AI消息 - 统一样式：思考过程 + 最终答案 -->
          <div v-else class="message ai-message unified-response">
            <div class="message-avatar">🤖</div>
            <div class="message-content">
              <!-- 顶部：深度思考状态 -->
              <div v-if="msg.thinkingTime" class="thinking-status-header">
                🧠 已深度思考（用时{{ msg.thinkingTime }}秒）
              </div>
              <div v-else-if="msg.phase === 'thinking'" class="thinking-status-header thinking-active">
                🧠 正在深度思考...
              </div>

              <!-- 统一使用 MarkdownCard 展示思考过程和答案 -->
              <div class="unified-markdown-section">
                <!-- 使用 McMarkdownCard 统一渲染 -->
                <div
                  class="unified-content markdown-content"
                  v-html="renderMarkdownWithMath(getFormattedContent(msg))"
                ></div>
              </div>

              <!-- 底部：操作按钮 -->
              <div
                v-if="(msg.phase === 'completed' || msg.phase === 'answering') && msg.content"
                class="message-actions"
              >
                <i class="icon-copy" title="复制" @click="copyMessage(msg.content)"></i>
                <i class="icon-refresh" title="重新生成" @click="regenerateMessage(msg)"></i>
                <i class="icon-like" title="点赞"></i>
                <i class="icon-dislike" title="点踩"></i>
              </div>
            </div>
          </div>
        </template>

        <!-- AI思考状态 -->
        <div v-if="isAiThinking" class="message ai-message thinking-message">
          <div class="message-avatar">🤖</div>
          <div class="message-content">
            <div class="thinking-animation">
              <div class="thinking-dots">
                <span></span>
                <span></span>
                <span></span>
              </div>
              <div class="thinking-text">正在思考中...（{{ thinkingTime }}秒）</div>
            </div>
          </div>
        </div>
      </div>

      <!-- 启动页 -->
      <div v-else class="start-page">
        <div class="welcome-content">
          <h2>🤖 DeepSeek AI助手</h2>
          <p>基于DeepSeek强大AI模型的智能对话助手</p>
          <div class="features">
            <div class="feature-item">✨ 深度思考过程展示</div>
            <div class="feature-item">💻 专业代码生成</div>
            <div class="feature-item">📝 Markdown格式化回复</div>
            <div class="feature-item">🧮 数学公式渲染支持</div>
          </div>

          <div v-if="!isApiConfigured" class="config-tip">
            <p>⚠️ 请先在左侧选择AI模型</p>
          </div>
        </div>
      </div>

      <!-- 输入区域 -->
      <div class="input-section">
        <div class="input-container">
          <input
            v-model="inputValue"
            placeholder="输入您的问题... (Enter发送, Shift+Enter换行)"
            :disabled="!isApiConfigured || isAiThinking"
            class="chat-input"
            @keydown="handleKeyDown"
          />
          <button :disabled="!inputValue.trim() || !isApiConfigured || isAiThinking" class="send-btn" @click="onSubmit">
            发送
          </button>
        </div>
        <div class="input-footer">
          <span class="input-counter">{{ inputValue.length }}/2000</span>
          <div class="input-actions">
            <i class="icon-paperclip" title="附件"></i>
            <i class="icon-mic" title="语音"></i>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<style scoped lang="scss">
.chat-container {
  display: flex;
  height: 85vh;
  background: #f5f5f5;

  .sidebar {
    width: 300px;
    background: #ffffff;
    border-right: 1px solid #ddd;
    display: flex;
    flex-direction: column;

    .sidebar-header {
      padding: 16px;
      border-bottom: 1px solid #eee;
      display: flex;
      justify-content: space-between;
      align-items: center;

      .logo-section {
        display: flex;
        align-items: center;
        gap: 8px;

        .logo {
          width: 32px;
          height: 32px;
          border-radius: 50%;
          background: #5e7ce0;
          display: flex;
          align-items: center;
          justify-content: center;
          color: white;
        }

        .title {
          font-weight: 500;
          color: #252b3a;
        }
      }

      .header-actions {
        display: flex;
        gap: 8px;

        .action-btn {
          cursor: pointer;
          padding: 4px;
          border-radius: 4px;

          &:hover {
            background: #f0f0f0;
          }
        }
      }
    }

    .config-panel {
      padding: 16px;
      background: #f8f9fa;
      border-bottom: 1px solid #eee;

      .config-item {
        margin-bottom: 12px;

        label {
          display: block;
          margin-bottom: 4px;
          font-size: 12px;
          color: #666;
        }

        input,
        select {
          width: 100%;
          padding: 8px;
          border: 1px solid #ddd;
          border-radius: 4px;
          font-size: 12px;
        }

        .model-description {
          margin-top: 6px;
          padding: 6px 8px;
          background: #f0f0f0;
          border-radius: 4px;
          font-size: 11px;
          color: #666;
          line-height: 1.4;
        }
      }

      .config-actions {
        display: flex;
        gap: 8px;

        button {
          flex: 1;
          padding: 6px 12px;
          border: none;
          border-radius: 4px;
          font-size: 12px;
          cursor: pointer;

          &.save-btn {
            background: #5e7ce0;
            color: white;
          }

          &.test-btn {
            background: #f0f0f0;
            color: #333;
          }

          &:disabled {
            opacity: 0.5;
            cursor: not-allowed;
          }
        }
      }
    }

    .search-section {
      padding: 16px;

      .search-input {
        position: relative;
        display: flex;
        align-items: center;
        background: #f5f5f5;
        border-radius: 8px;
        padding: 8px 12px;

        .icon-search {
          color: #999;
          margin-right: 8px;
        }

        input {
          flex: 1;
          border: none;
          background: transparent;
          outline: none;
          color: #252b3a;

          &::placeholder {
            color: #999;
          }
        }
      }
    }

    .chat-history {
      flex: 1;
      overflow-y: auto;

      .history-section {
        padding: 0 16px;

        .section-title {
          padding: 8px 0;
          font-size: 12px;
          color: #999;
          border-bottom: 1px solid #eee;
          margin-bottom: 8px;
        }

        .chat-item {
          display: flex;
          align-items: center;
          padding: 12px 8px;
          border-radius: 8px;
          cursor: pointer;
          margin-bottom: 4px;
          color: #252b3a; // 默认黑色字体

          &:hover {
            background: #f5f5f5;
          }

          &.active {
            background: #e6f3ff;
            color: #5e7ce0;
          }

          .icon-message {
            margin-right: 8px;
            color: #999;

            // 选中状态下的图标颜色
            .chat-item.active & {
              color: #5e7ce0;
            }
          }

          .chat-title {
            flex: 1;
            font-size: 14px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            color: inherit; // 继承父元素颜色
          }

          .icon-more {
            opacity: 0;
            transition: opacity 0.2s;
            color: #999;

            // 选中状态下的图标颜色
            .chat-item.active & {
              color: #5e7ce0;
            }
          }

          &:hover .icon-more {
            opacity: 1;
          }
        }
      }
    }

    .sidebar-footer {
      padding: 16px;
      border-top: 1px solid #eee;

      .status-indicator {
        padding: 8px;
        border-radius: 6px;
        font-size: 12px;
        text-align: center;
        background: #ffd6d6;
        color: #d32f2f;

        &.connected {
          background: #d4edda;
          color: #155724;
        }
      }
    }
  }

  .chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #ffffff;

    .chat-header {
      padding: 16px 24px;
      border-bottom: 1px solid #eee;
      display: flex;
      justify-content: space-between;
      align-items: center;

      .chat-title-section {
        display: flex;
        flex-direction: column;

        .chat-title {
          font-size: 16px;
          font-weight: 500;
          color: #252b3a;
          margin-bottom: 4px;
        }

        .chat-model {
          font-size: 12px;
          color: #999;
        }
      }

      .chat-actions {
        display: flex;
        align-items: center;
        gap: 12px;

        .token-count {
          font-size: 12px;
          color: #999;
        }

        .icon-more {
          cursor: pointer;
          padding: 4px;
          border-radius: 4px;

          &:hover {
            background: #f0f0f0;
          }
        }
      }
    }

    .chat-content {
      flex: 1;
      padding: 24px;
      overflow-y: auto;
      display: flex;
      flex-direction: column;
      gap: 16px;

      .message {
        display: flex;
        gap: 12px;
        max-width: 85%;

        &.user-message {
          align-self: flex-end;
          flex-direction: row-reverse;

          .message-content {
            background: #5e7ce0;
            color: white;
            border-radius: 18px 4px 18px 18px;
          }
        }

        &.ai-message {
          align-self: flex-start;

          .message-content {
            background: #f5f5f5;
            color: #252b3a;
            border-radius: 4px 18px 18px 18px;
          }

          &.thinking-message .message-content {
            background: #e8f4fd;
            border: 1px solid #b3d7f0;
          }
        }

        .message-avatar {
          width: 32px;
          height: 32px;
          border-radius: 50%;
          display: flex;
          align-items: center;
          justify-content: center;
          font-size: 16px;
          flex-shrink: 0;
          margin-top: 4px;
        }

        .message-content {
          padding: 12px 16px;
          word-wrap: break-word;
          position: relative;
        }
      }
    }

    .start-page {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 40px;
      text-align: center;

      .welcome-content {
        h2 {
          color: #252b3a;
          margin-bottom: 16px;
        }

        p {
          color: #666;
          margin-bottom: 24px;
          font-size: 16px;
        }

        .features {
          display: flex;
          flex-direction: column;
          gap: 8px;
          margin-bottom: 24px;

          .feature-item {
            color: #5e7ce0;
            font-size: 14px;
          }
        }

        .config-tip {
          p {
            color: #d32f2f;
            font-weight: 500;
          }
        }

        .math-demo {
          margin: 24px 0;
          padding: 20px;
          background: #f8f9fa;
          border-radius: 12px;
          border: 1px solid #e9ecef;

          h3 {
            color: #252b3a;
            margin-bottom: 16px;
            font-size: 16px;
            font-weight: 600;
          }

          .math-demo-card {
            background: white;
            border-radius: 8px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
            padding: 16px;
          }
        }
      }
    }

    .input-section {
      padding: 16px 24px;
      border-top: 1px solid #eee;

      .input-container {
        display: flex;
        gap: 12px;
        margin-bottom: 8px;

        .chat-input {
          flex: 1;
          padding: 12px 16px;
          border: 1px solid #ddd;
          border-radius: 24px;
          outline: none;
          font-size: 14px;

          &:focus {
            border-color: #5e7ce0;
          }

          &:disabled {
            background: #f5f5f5;
            cursor: not-allowed;
          }
        }

        .send-btn {
          padding: 12px 24px;
          background: #5e7ce0;
          color: white;
          border: none;
          border-radius: 24px;
          cursor: pointer;
          font-size: 14px;

          &:hover {
            background: #4c6ed7;
          }

          &:disabled {
            background: #ccc;
            cursor: not-allowed;
          }
        }
      }

      .input-footer {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0 8px;

        .input-counter {
          font-size: 12px;
          color: #999;
        }

        .input-actions {
          display: flex;
          gap: 12px;

          i {
            cursor: pointer;
            color: #666;
            padding: 4px;
            border-radius: 4px;

            &:hover {
              background: #f0f0f0;
            }
          }
        }
      }
    }
  }
}

// 图标样式
.icon-user::before {
  content: '👤';
}
.icon-add::before {
  content: '➕';
}
.icon-settings::before {
  content: '⚙️';
}
.icon-search::before {
  content: '🔍';
}
.icon-message::before {
  content: '💬';
}
.icon-more::before {
  content: '⋯';
}
.icon-copy::before {
  content: '📋';
}
.icon-refresh::before {
  content: '🔄';
}
.icon-like::before {
  content: '👍';
}
.icon-dislike::before {
  content: '👎';
}
.icon-paperclip::before {
  content: '📎';
}
.icon-mic::before {
  content: '🎤';
}
.icon-brain::before {
  content: '🧠';
}

// 思考状态样式
.thinking-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  padding: 6px 12px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 500;

  &.completed {
    background: linear-gradient(135deg, #4caf50 0%, #45a049 100%);
  }
}

.thinking-process-content {
  background: #f8f9fa;
  border: 1px solid #e9ecef;
  border-radius: 8px;
  padding: 12px;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 13px;
  line-height: 1.4;
  color: #333;
  white-space: pre-wrap;
  min-height: 40px;

  .thinking-cursor {
    color: #5e7ce0;
    animation: blink 1s infinite;
  }
}

@keyframes blink {
  0%,
  50% {
    opacity: 1;
  }
  51%,
  100% {
    opacity: 0;
  }
}

.thinking-animation {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 12px;

  .thinking-dots {
    display: flex;
    gap: 6px;

    span {
      width: 8px;
      height: 8px;
      background: #5e7ce0;
      border-radius: 50%;
      animation: thinking-dot 1.4s ease-in-out infinite both;

      &:nth-child(1) {
        animation-delay: -0.32s;
      }
      &:nth-child(2) {
        animation-delay: -0.16s;
      }
      &:nth-child(3) {
        animation-delay: 0s;
      }
    }
  }

  .thinking-text {
    color: #666;
    font-size: 13px;
    text-align: center;
  }
}

@keyframes thinking-dot {
  0%,
  80%,
  100% {
    transform: scale(0.6);
    opacity: 0.4;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

// AI消息统一样式 - 匹配截图效果
.ai-message.unified-response {
  .message-content {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 16px;
    margin: 12px 0;
    border: 1px solid #e3e3e3;
  }

  // 统一内容区域
  .unified-content {
    margin: 0;
  }

  // 顶部思考状态头
  .thinking-status-header {
    color: #6b7280;
    font-size: 13px;
    margin-bottom: 12px;
    padding: 6px 0;
    border-bottom: 1px solid #e5e7eb;

    &.thinking-active {
      color: #3b82f6;
      animation: pulse 2s infinite;
    }
  }

  // 中间思考过程区域
  .thinking-process-section {
    margin: 12px 0;

    .thinking-content {
      background: transparent;
      border: none;
      padding: 0;
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      font-size: 14px;
      line-height: 1.6;
      color: #4b5563;
      white-space: pre-wrap;
      margin-bottom: 16px;

      .thinking-cursor {
        color: #3b82f6;
        animation: blink 1s infinite;
      }
    }
  }

  // 底部最终答案区域（加粗）
  .final-answer-section {
    margin-top: 16px;
    padding-top: 12px;

    .final-answer {
      font-weight: 600;
      font-size: 14px;
      line-height: 1.6;
      color: #111827;

      // 加粗markdown内容
      p {
        font-weight: 600;
        margin: 8px 0;
      }

      h1,
      h2,
      h3,
      h4,
      h5,
      h6 {
        font-weight: 700;
      }

      strong,
      b {
        font-weight: 700;
      }
    }
  }

  // 操作按钮
  .message-actions {
    display: flex;
    gap: 12px;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid #e5e7eb;
    opacity: 0;
    transition: opacity 0.2s ease;

    i {
      cursor: pointer;
      color: #6b7280;
      padding: 6px;
      border-radius: 6px;
      font-size: 16px;
      transition: all 0.2s ease;

      &:hover {
        background: #f3f4f6;
        color: #374151;
        transform: scale(1.1);
      }
    }
  }

  &:hover .message-actions {
    opacity: 1;
  }
}

// 脉搏动画
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

// Markdown 内容样式
.markdown-content {
  line-height: 1.6;
  color: #252b3a;

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    margin: 16px 0 8px 0;
    color: #252b3a;
    font-weight: 600;
  }

  h1 {
    font-size: 20px;
  }
  h2 {
    font-size: 18px;
  }
  h3 {
    font-size: 16px;
  }
  h4 {
    font-size: 14px;
  }

  p {
    margin: 8px 0;
  }

  ul,
  ol {
    margin: 8px 0;
    padding-left: 20px;
  }

  li {
    margin: 4px 0;
  }

  blockquote {
    margin: 12px 0;
    padding: 8px 12px;
    background: #f8f9fa;
    border-left: 3px solid #5e7ce0;
    border-radius: 4px;
    color: #666;
    font-style: italic;
  }

  code {
    background: #f1f3f4;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 12px;
    color: #e83e8c;
  }

  pre {
    background: #1e1e1e;
    color: #d4d4d4;
    padding: 12px;
    border-radius: 6px;
    overflow-x: auto;
    margin: 12px 0;

    code {
      background: none;
      padding: 0;
      color: #d4d4d4;
      font-size: 13px;
    }
  }

  strong {
    font-weight: 600;
    color: #252b3a;
  }

  em {
    font-style: italic;
  }

  a {
    color: #5e7ce0;
    text-decoration: none;

    &:hover {
      text-decoration: underline;
    }
  }

  // KaTeX 数学公式样式
  .katex {
    font-size: 1.1em;
  }

  .katex-display {
    margin: 16px 0;
    text-align: center;
  }

  .math-display {
    margin: 16px 0;
    text-align: center;
    overflow-x: auto;
  }

  // 思考过程样式
  think {
    display: block;
    background: #f0f8ff;
    border-left: 4px solid #5e7ce0;
    padding: 12px 16px;
    margin: 16px 0;
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: #4a6cf7;
    white-space: pre-wrap;
  }

  // 数学公式错误样式
  .math-error {
    color: #cc0000;
    background: #ffe6e6;
    padding: 4px 8px;
    border-radius: 4px;
    font-family: monospace;
    border: 1px solid #ffcccc;
  }
}

.text-content {
  line-height: 1.6;
  color: #252b3a;
}

.message-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
  opacity: 0;
  transition: opacity 0.2s;

  i {
    cursor: pointer;
    color: #666;
    padding: 4px;
    border-radius: 4px;
    font-size: 12px;

    &:hover {
      background: #e0e0e0;
    }
  }
}

.message:hover .message-actions {
  opacity: 1;
}
</style>
