diff --git a/README_REVERSE_ENGINEERING.md b/README_REVERSE_ENGINEERING.md
index a83db3b..d424f2e 100644
--- a/README_REVERSE_ENGINEERING.md
+++ b/README_REVERSE_ENGINEERING.md
@@ -47,14 +47,23 @@ param_str = "nonce=yyy&timestamp=xxx"
 sign = HMAC-SHA256(param_str, key="Hf6d6KFB3D")
 ```
 
-### 3. Image URL Format
+### 3. Image Upload Evolution
 
-Must use Tencent's internal resource format:
-```
-https://3d.hunyuan.tencent.com/api/3d/resource/download?resourceId=<32-digit-hex>
-```
+#### Method 1: Browser Automation Upload (Original)
+Upload via `generator.py` inside the browser to obtain a Tencent internal `resourceId`.
 
-You cannot directly use a COS URL; you must upload through the browser to obtain a resourceId.
+#### Method 2: Pure Python COS Direct Upload (New)
+Upload directly via `cos_upload.py` without a browser:
+1. Call `/resource/genUploadInfo` to obtain temporary STS credentials (`encryptTmpSecretId` / `encryptTmpSecretKey` / `encryptToken`)
+2. Generate the `Authorization` header using the COS V1 signing algorithm
+3. `PUT` directly to `*.cos.accelerate.myqcloud.com`
+4. Obtain `resourceUrl` for subsequent image-to-3D API calls
+
+```python
+from hunyuan3dweb.cos_upload import upload_image
+
+resource_url = upload_image("/path/to/image.png")
+```
 
 ---
 
@@ -63,9 +72,14 @@ You cannot directly use a COS URL; you must upload through the browser to obtain
 | File | Description |
 |------|-------------|
 | `hunyuan3dweb/sign.py` | Signing algorithm in pure Python |
-| `hunyuan3dweb/api.py` | Pure Python API client |
+| `hunyuan3dweb/api.py` | Basic API client (image2model, text2model) |
+| `hunyuan3dweb/api_complete.py` | Full API client (all generation modes) |
+| `hunyuan3dweb/cos_upload.py` | Pure Python COS upload helper (no browser needed) |
+| `hunyuan3dweb/config.py` | User config path management (cookies, profile) |
+| `hunyuan3dweb/cli.py` | CLI entry point |
 | `hunyuan3dweb/browser/login.py` | Browser automation login tool |
-| `doc/api.md` | API endpoint documentation |
+| `hunyuan3dweb/browser/generator.py` | Browser automation image-to-3D |
+| `hunyuan3dweb/browser/sniffer.py` | API request sniffer |
 
 ---
 
@@ -77,29 +91,46 @@ You cannot directly use a COS URL; you must upload through the browser to obtain
 hunyuan3dweb-login
 # Follow prompts to enter email and verification code
 # Login state is automatically saved to ~/.config/hunyuan3dweb/profile
+# Cookies are also exported to ~/.config/hunyuan3dweb/cookies.txt
 ```
 
+**Login State Detection Logic** (dual verification):
+- Check if the current page URL contains `"login"`
+- Check if a "Login" button exists on the page
+- Only considered logged in when URL does NOT contain login **AND** no login button is present
+
 ### 2. Pure Python 3D Generation
 
 ```python
 from hunyuan3dweb import Hunyuan3DAPI
 
+# Automatically load cookie from ~/.config/hunyuan3dweb/cookies.txt
 api = Hunyuan3DAPI()
 
 # Check quota
 quota = api.get_quota_info()
 
-# Generate 3D model
-result = api.generate_3d(
-    image_url="https://3d.hunyuan.tencent.com/api/3d/resource/download?resourceId=...",
-    scene_type="playGround3D-2.0",
-    model_type="image2ModelV3.1"
-)
+# Text-to-3D
+result = api.generate_text("a cute panda", title="Panda Model")
 
 # Query status
 status = api.get_generation_status(result["creationsId"])
 ```
 
+### 3. Local Image Upload + Image-to-3D (Pure Python)
+
+```python
+from hunyuan3dweb.cos_upload import upload_image
+from hunyuan3dweb import Hunyuan3DAPIComplete
+
+# Upload local image to COS
+resource_url = upload_image("/path/to/image.png")
+
+# Call image-to-3D API
+api = Hunyuan3DAPIComplete()
+result = api.generate_from_image(resource_url, title="My Model")
+```
+
 ---
 
 ## API Endpoints
@@ -110,6 +141,14 @@ status = api.get_generation_status(result["creationsId"])
 | Quota query | POST | `/quotainfo` | Query params |
 | Generate 3D | POST | `/creations/generations` | Query params |
 | Query status | GET | `/creations/detail` | Query params |
+| Creation list | POST | `/creations/list` | Query params |
+| Creation count | POST | `/creations/count` | Query params |
+| Cancel generation | POST | `/creations/cancel` | Query params |
+| Upload credentials | POST | `/resource/genUploadInfo` | Query params |
+| Resource review | POST | `/resource/review` | Query params |
+| Create share | POST | `/share` | Query params |
+| Global config | GET | `/config` | Query params |
+| Animation templates | GET | `/workflow/action/templates` | Query params |
 
 ---
 
@@ -146,6 +185,32 @@ def derive_key(c: bytes) -> str:
     return n[:r].decode('utf-8')
 ```
 
+### COS V1 Signature (for Direct Upload)
+
+```python
+def _cos_v1_auth(method, pathname, query_params, headers, secret_id, secret_key, key_time):
+    sign_key = hmac.new(secret_key.encode("utf-8"), key_time.encode("utf-8"), hashlib.sha1).hexdigest()
+
+    query_str = _obj2str(query_params, True)
+    headers_str = _obj2str(headers, True)
+    format_string = f"{method}\n{pathname}\n{query_str}\n{headers_str}\n"
+
+    format_string_sha1 = hashlib.sha1(format_string.encode("utf-8")).hexdigest()
+    string_to_sign = f"sha1\n{key_time}\n{format_string_sha1}\n"
+
+    signature = hmac.new(sign_key.encode("utf-8"), string_to_sign.encode("utf-8"), hashlib.sha1).hexdigest()
+
+    return "&".join([
+        "q-sign-algorithm=sha1",
+        f"q-ak={secret_id}",
+        f"q-sign-time={key_time}",
+        f"q-key-time={key_time}",
+        f"q-header-list={';'.join(sorted(headers.keys())).lower()}",
+        f"q-url-param-list={';'.join(sorted(query_params.keys())).lower()}",
+        f"q-signature={signature}",
+    ])
+```
+
 ### Request Signing
 
 ```python
@@ -180,15 +245,16 @@ def sign(params: dict) -> dict:
 | Quota query | Works | Works | ✅ |
 | Generate request | Works | Works | ✅ |
 | Status query | Works | Works | ✅ |
+| COS direct upload | Browser upload | Python upload | ✅ |
 
 ---
 
 ## Limitations and Notes
 
-1. **Image Upload**: Still requires a browser environment to upload images and obtain resourceId (Tencent COS requires temporary signatures)
-2. **Cookie Expiration**: Login sessions expire and need periodic re-login
-3. **Quota Limit**: Each account has a generation quota limit (default 20/day)
-4. **Rate Limiting**: Frequent calls may trigger anti-bot measures
+1. **Cookie Expiration**: Login sessions expire and need periodic re-login
+2. **Quota Limit**: Each account has a generation quota limit (default 20/day)
+3. **Rate Limiting**: Frequent calls may trigger anti-bot measures
+4. **Concurrency Safety**: When multiple tools run simultaneously, `login.py` exclusively uses the standard profile directory, while `sniffer.py` / `generator.py` automatically copy the profile to a temporary directory to avoid Chromium `SingletonLock` conflicts
 
 ---
 
@@ -196,7 +262,7 @@ def sign(params: dict) -> dict:
 
 ```
 requests
-cloakbrowser (for login and upload)
+cloakbrowser (for login and browser automation)
 ```
 
 ---
diff --git a/README_REVERSE_ENGINEERING_CN.md b/README_REVERSE_ENGINEERING_CN.md
index 27ffc74..f494563 100644
--- a/README_REVERSE_ENGINEERING_CN.md
+++ b/README_REVERSE_ENGINEERING_CN.md
@@ -47,14 +47,23 @@ param_str = "nonce=yyy&timestamp=xxx"
 sign = HMAC-SHA256(param_str, key="Hf6d6KFB3D")
 ```
 
-### 3. 图片URL格式
+### 3. 图片上传方式演进
 
-必须使用腾讯内部资源格式:
-```
-https://3d.hunyuan.tencent.com/api/3d/resource/download?resourceId=<32位十六进制>
-```
+#### 方式一：浏览器自动化上传（原始方式）
+通过 `generator.py` 在浏览器内完成上传，获取腾讯内部资源格式的 `resourceId`。
 
-不能直接上传 COS URL，需要通过浏览器上传获取 resourceId。
+#### 方式二：纯 Python COS 直传（新方式）
+通过 `cos_upload.py` 直接调用腾讯 COS API 上传文件，无需浏览器：
+1. 调用 `/resource/genUploadInfo` 获取临时 STS 凭证（`encryptTmpSecretId` / `encryptTmpSecretKey` / `encryptToken`）
+2. 使用 COS V1 签名算法生成 `Authorization` 请求头
+3. 直接 `PUT` 上传到 `*.cos.accelerate.myqcloud.com`
+4. 获得 `resourceUrl` 供后续图生3D API 使用
+
+```python
+from hunyuan3dweb.cos_upload import upload_image
+
+resource_url = upload_image("/path/to/image.png")
+```
 
 ---
 
@@ -62,12 +71,15 @@ https://3d.hunyuan.tencent.com/api/3d/resource/download?resourceId=<32位十六
 
 | 文件 | 说明 |
 |------|------|
-| `hunyuan3d_sign.py` | 签名算法纯 Python 实现 |
-| `hunyuan3d_api.py` | 纯 Python API 客户端 |
-| `hunyuan3d_login.py` | 浏览器自动化登录工具 |
-| `get_resource_id.py` | 获取图片 resourceId 工具 |
-| `cookies.txt` | Cookie 存储文件 |
-| `uploaded_image_url.txt` | 上传后的图片 URL |
+| `hunyuan3dweb/sign.py` | 签名算法纯 Python 实现 |
+| `hunyuan3dweb/api.py` | 基础 API 客户端（图生3D、文生3D） |
+| `hunyuan3dweb/api_complete.py` | 完整 API 客户端（所有生成模式） |
+| `hunyuan3dweb/cos_upload.py` | 纯 Python COS 上传工具（无需浏览器） |
+| `hunyuan3dweb/config.py` | 用户配置路径管理（cookie、profile） |
+| `hunyuan3dweb/cli.py` | CLI 入口 |
+| `hunyuan3dweb/browser/login.py` | 浏览器自动化登录工具 |
+| `hunyuan3dweb/browser/generator.py` | 浏览器自动化图生3D |
+| `hunyuan3dweb/browser/sniffer.py` | API 请求嗅探工具 |
 
 ---
 
@@ -76,46 +88,49 @@ https://3d.hunyuan.tencent.com/api/3d/resource/download?resourceId=<32位十六
 ### 1. 登录获取 Cookie
 
 ```bash
-python hunyuan3d_login.py
+hunyuan3dweb-login
 # 按提示输入邮箱和验证码
-# 登录状态自动保存到 ./hunyuan3d_profile
+# 登录状态自动保存到 ~/.config/hunyuan3dweb/profile
+# Cookie 同时导出到 ~/.config/hunyuan3dweb/cookies.txt
 ```
 
-### 2. 提取 Cookie
+**登录状态检测逻辑**（双重验证）：
+- 检查当前页面 URL 是否包含 `"login"`
+- 检查页面上是否存在"登录"按钮
+- 只有 URL 不含 login **且** 没有登录按钮时，才判定为已登录
 
-```bash
-python get_cookie_persistent.py
-# 生成 cookies.txt
-```
-
-### 3. 上传图片获取 resourceId
-
-```bash
-python get_resource_id_v2.py
-# 生成 uploaded_image_url.txt
-```
-
-### 4. 纯 Python 生成3D模型
+### 2. 纯 Python 生成3D模型
 
 ```python
-from hunyuan3d_api import Hunyuan3DAPI
+from hunyuan3dweb import Hunyuan3DAPI
 
-api = Hunyuan3DAPI("hunyuan_user=xxx; hunyuan_token=yyy")
+# 自动从 ~/.config/hunyuan3dweb/cookies.txt 加载 cookie
+api = Hunyuan3DAPI()
 
 # 查询配额
 quota = api.get_quota_info()
 
-# 生成3D模型
-result = api.generate_3d(
-    image_url="https://3d.hunyuan.tencent.com/api/3d/resource/download?resourceId=...",
-    scene_type="playGround3D-2.0",
-    model_type="image2ModelV3.1"
-)
+# 文生3D
+result = api.generate_text("一只可爱的熊猫", title="熊猫模型")
 
 # 查询状态
 status = api.get_generation_status(result["creationsId"])
 ```
 
+### 3. 本地图片上传 + 图生3D（纯 Python）
+
+```python
+from hunyuan3dweb.cos_upload import upload_image
+from hunyuan3dweb import Hunyuan3DAPIComplete
+
+# 上传本地图片到 COS
+resource_url = upload_image("/path/to/image.png")
+
+# 调用图生3D API
+api = Hunyuan3DAPIComplete()
+result = api.generate_from_image(resource_url, title="我的模型")
+```
+
 ---
 
 ## API 端点
@@ -126,6 +141,14 @@ status = api.get_generation_status(result["creationsId"])
 | 配额查询 | POST | `/quotainfo` | 查询参数 |
 | 生成3D | POST | `/creations/generations` | 查询参数 |
 | 查询状态 | GET | `/creations/detail` | 查询参数 |
+| 作品列表 | POST | `/creations/list` | 查询参数 |
+| 作品数量 | POST | `/creations/count` | 查询参数 |
+| 取消生成 | POST | `/creations/cancel` | 查询参数 |
+| 上传凭证 | POST | `/resource/genUploadInfo` | 查询参数 |
+| 资源审核 | POST | `/resource/review` | 查询参数 |
+| 创建分享 | POST | `/share` | 查询参数 |
+| 全局配置 | GET | `/config` | 查询参数 |
+| 动画模板 | GET | `/workflow/action/templates` | 查询参数 |
 
 ---
 
@@ -162,6 +185,32 @@ def derive_key(c: bytes) -> str:
     return n[:r].decode('utf-8')
 ```
 
+### COS V1 签名（用于直传）
+
+```python
+def _cos_v1_auth(method, pathname, query_params, headers, secret_id, secret_key, key_time):
+    sign_key = hmac.new(secret_key.encode("utf-8"), key_time.encode("utf-8"), hashlib.sha1).hexdigest()
+
+    query_str = _obj2str(query_params, True)
+    headers_str = _obj2str(headers, True)
+    format_string = f"{method}\n{pathname}\n{query_str}\n{headers_str}\n"
+
+    format_string_sha1 = hashlib.sha1(format_string.encode("utf-8")).hexdigest()
+    string_to_sign = f"sha1\n{key_time}\n{format_string_sha1}\n"
+
+    signature = hmac.new(sign_key.encode("utf-8"), string_to_sign.encode("utf-8"), hashlib.sha1).hexdigest()
+
+    return "&".join([
+        "q-sign-algorithm=sha1",
+        f"q-ak={secret_id}",
+        f"q-sign-time={key_time}",
+        f"q-key-time={key_time}",
+        f"q-header-list={';'.join(sorted(headers.keys())).lower()}",
+        f"q-url-param-list={';'.join(sorted(query_params.keys())).lower()}",
+        f"q-signature={signature}",
+    ])
+```
+
 ### 请求签名
 
 ```python
@@ -196,15 +245,16 @@ def sign(params: dict) -> dict:
 | 配额查询 | 可用 | 可用 | ✅ |
 | 生成请求 | 可用 | 可用 | ✅ |
 | 状态查询 | 可用 | 可用 | ✅ |
+| COS 直传 | 浏览器上传 | Python 上传 | ✅ |
 
 ---
 
 ## 限制与注意事项
 
-1. **图片上传**: 仍需浏览器环境上传图片获取 resourceId（腾讯 COS 需要临时签名）
-2. **Cookie 有效期**: 登录状态会过期，需要定期重新登录
-3. **配额限制**: 每个账号有生成配额限制（默认20次/天）
-4. **风控检测**: 频繁调用可能触发风控
+1. **Cookie 有效期**: 登录状态会过期，需要定期重新登录
+2. **配额限制**: 每个账号有生成配额限制（默认20次/天）
+3. **风控检测**: 频繁调用可能触发风控
+4. **并发安全**: 多个工具同时运行时，`login.py` 独享标准 profile 目录，`sniffer.py` / `generator.py` 会自动复制 profile 到临时目录启动，避免 Chromium `SingletonLock` 冲突
 
 ---
 
@@ -212,7 +262,7 @@ def sign(params: dict) -> dict:
 
 ```
 requests
-cloakbrowser (用于登录和上传)
+cloakbrowser (用于登录和浏览器自动化)
 ```
 
 ---