diff --git a/skills/kb-bilibili-content/bilibili_content.py b/skills/kb-bilibili-content/bilibili_content.py
index 9831004..6a1905b 100644
--- a/skills/kb-bilibili-content/bilibili_content.py
+++ b/skills/kb-bilibili-content/bilibili_content.py
@@ -31,7 +31,6 @@ class BilibiliContent:
         'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
         'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8',
         'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8',
-        'Accept-Encoding': 'gzip, deflate, br',
         'Connection': 'keep-alive',
         'Upgrade-Insecure-Requests': '1',
         'Sec-Fetch-Dest': 'document',
@@ -58,10 +57,11 @@ class BilibiliContent:
         result = {"success": False, "bvid": bvid, "message": "", "filepath": None, "metadata": {}}
         
         try:
-            async with aiohttp.ClientSession(headers=self._get_headers()) as session:
+            # API 请求使用自动解压
+            async with aiohttp.ClientSession(headers=self._get_headers()) as api_session:
                 # 获取视频信息
                 print(f"获取视频信息: {bvid}")
-                async with session.get("https://api.bilibili.com/x/web-interface/view", params={'bvid': bvid}) as resp:
+                async with api_session.get("https://api.bilibili.com/x/web-interface/view", params={'bvid': bvid}) as resp:
                     data = await resp.json()
                 
                 if data.get('code') != 0:
@@ -77,7 +77,7 @@ class BilibiliContent:
                 
                 # 获取播放地址
                 print(f"获取视频流...")
-                async with session.get("https://api.bilibili.com/x/player/playurl", 
+                async with api_session.get("https://api.bilibili.com/x/player/playurl", 
                         params={'bvid': bvid, 'cid': cid, 'qn': quality}) as resp:
                     play_data = await resp.json()
                 
@@ -97,7 +97,9 @@ class BilibiliContent:
                 safe_title = "".join(c for c in title if c.isalnum() or c in (' ', '-', '_')).strip()[:30]
                 output_path = self.output_dir / f"{safe_title}_{bvid}.flv"
                 
-                async with session.get(video_url) as resp:
+            # 视频下载使用禁用自动解压的 session
+            async with aiohttp.ClientSession(headers=self._get_headers(), auto_decompress=False) as download_session:
+                async with download_session.get(video_url) as resp:
                     with open(output_path, 'wb') as f:
                         async for chunk in resp.content.iter_chunked(81920):
                             f.write(chunk)
diff --git a/skills/kb-workflow/SkillBug.md b/skills/kb-workflow/SkillBug.md
index 05b02c0..ae5df03 100644
--- a/skills/kb-workflow/SkillBug.md
+++ b/skills/kb-workflow/SkillBug.md
@@ -70,7 +70,32 @@ generate_summary(...)                # 生成汇报
 
 ---
 
-## 待办
+### 2026-02-12: B站视频下载失败 - 403 Forbidden
 
-- [ ] 测试 Prompt-based 模式是否正常工作
-- [ ] 验证主代理能否正确执行 SKILL.md 中的步骤
+**问题：** 使用 kb-bilibili-content 下载视频时返回 403 Forbidden 错误。
+
+**原因：**
+1. 视频可能需要B站会员权限
+2. 或者需要登录cookie才能下载
+3. 当前未配置 `BILIBILI_COOKIE` 环境变量
+
+**复现场景：**
+- 链接：https://www.bilibili.com/video/BV1Z9nXzUEhv
+- 下载命令：`python3 bilibili_content.py --id "BV1Z9nXzUEhv" --type video`
+- 结果：返回403错误页面，文件只有548字节
+
+**影响：** 无法进行后续的OCR处理和深度分析
+
+**建议解决方案：**
+1. 配置 `BILIBILI_COOKIE` 环境变量
+2. 或提供cookies文件路径
+3. 或跳过OCR步骤，使用元数据+简介进行深度分析
+
+**当前进度：**
+- ✅ 步骤1：环境变量检查完成
+- ✅ 步骤2：链接解析成功（bilibili_BV1Z9nXzUEhv）
+- ✅ 步骤3：元数据提取成功（标题：新加坡分区漫游指南...）
+- ❌ 步骤4：视频下载失败（403）
+- ⏸️  步骤5：OCR处理（阻塞）
+- ⏸️  步骤6：深度分析（阻塞）
+- ⏸️  步骤7：归档（阻塞）