app.py

import gradio as gr
from huggingface_hub import InferenceClient

# 多模型矩阵
MODELS = {
    "Qwen 2.5 Coder (专业审计)": "Qwen/Qwen2.5-Coder-32B-Instruct",
    "Llama 3.1 (逻辑推理)": "meta-llama/Llama-3.1-70B-Instruct",
    "Mistral (快速响应)": "mistralai/Mistral-7B-Instruct-v0.3"
}

def ghost_chat(message, history, system_message, model_name, file_obj):
    repo_id = MODELS.get(model_name, "Qwen/Qwen2.5-Coder-32B-Instruct")
    client = InferenceClient(repo_id)
    
    file_context = ""
    if file_obj is not None:
        try:
            with open(file_obj.name, "r", encoding="utf-8") as f:
                file_context = f"\n[文件内容]:\n{f.read()[:800]}"
        except: pass

    messages = [{"role": "system", "content": f"{system_message}\n{file_context}"}]
    for user_msg, assistant_msg in history:
        messages.append({"role": "user", "content": user_msg})
        messages.append({"role": "assistant", "content": assistant_msg})
    messages.append({"role": "user", "content": message})

    response = ""
    yield history + [[message, "📡 链路建立中..."]]
    
    try:
        for msg_chunk in client.chat_completion(messages, stream=True, max_tokens=2048):
            token = msg_chunk.choices[0].delta.content
            if token:
                response += token
                yield history + [[message, response]]
    except Exception as e:
        yield history + [[message, f"❌ 链路中断: {str(e)}"]]

# 极客样式
style = """
.gradio-container { background: #000 !important; color: #0f0 !important; }
.message.user { border-left: 3px solid #0f0 !important; }
#custom-title { text-align: center; font-size: 24px; color: #0f0; margin-bottom: 20px; }
"""

# --- UI 架构 ---
with gr.Blocks(fill_height=True) as demo:
    # 修复点 1: 移除 textAlign，改用 HTML/Markdown 组合
    gr.HTML("<div id='custom-title'>🌌 INTERSTELLAR CORE v8.5</div>")
    
    with gr.Row():
        with gr.Column(scale=1):
            model_dd = gr.Dropdown(list(MODELS.keys()), value="Qwen 2.5 Coder (专业审计)", label="选择引擎")
            sys_msg = gr.Textbox(value="你是一个顶尖 AI 安全助手。", label="核心协议")
            
            with gr.Accordion("🛠️ 工具箱", open=False):
                file_up = gr.File(label="注入文档")
                scan_btn = gr.Button("执行系统诊断")

        with gr.Column(scale=3):
            chatbot = gr.Chatbot(height=600)
            with gr.Row():
                msg = gr.Textbox(placeholder="输入指令...", scale=9, container=False)
                send = gr.Button("EXE", scale=1)

    msg.submit(ghost_chat, [msg, chatbot, sys_msg, model_dd, file_up], [chatbot])
    send.click(ghost_chat, [msg, chatbot, sys_msg, model_dd, file_up], [chatbot])

# 修复点 2: 所有的 CSS 参数必须在这里！
if __name__ == "__main__":
    demo.launch(css=style)