diff --git a/app.py b/app.py
index 89709b0b..68e5ddf8 100755
--- a/app.py
+++ b/app.py
@@ -6278,7 +6278,7 @@ class Event(db.Model):
     follower_count = db.Column(db.Integer, default=0)
 
     # 关联信息
-    related_industries = db.Column(db.JSON)
+    related_industries = db.Column(db.String(20))  # 申万行业代码，如 "S640701"
     keywords = db.Column(db.JSON)
     files = db.Column(db.JSON)
     importance = db.Column(db.String(20))
@@ -10271,10 +10271,8 @@ def api_get_events():
         # 新增：行业代码过滤（申银万国行业分类）- 支持前缀匹配
         # 申万行业分类层级：一级 Sxx, 二级 Sxxxx, 三级 Sxxxxxx
         # 搜索 S22 会匹配所有 S22xxxx 的事件（如 S2203, S220309 等）
+        # related_industries 格式: varchar，如 "S640701"
         if industry_code:
-            # related_industries 格式: [{"申银万国行业分类": "S370502"}, ...]
-            # 支持多个行业代码，用逗号分隔
-
             # 判断是否需要前缀匹配：一级(3字符)或二级(5字符)行业代码
             def is_prefix_code(code):
                 """判断是否为需要前缀匹配的行业代码（一级或二级）"""
@@ -10291,48 +10289,20 @@ def api_get_events():
                 conditions = []
                 for code in codes:
                     if is_prefix_code(code):
-                        # 前缀匹配：使用 JSON_TABLE + LIKE
-                        # 这个子查询找到所有 related_industries 中申万行业代码以指定前缀开头的事件ID
-                        prefix_sql = text("""
-                            id IN (
-                                SELECT DISTINCT e2.id FROM event e2
-                                CROSS JOIN JSON_TABLE(
-                                    e2.related_industries,
-                                    '$[*]' COLUMNS (sw_code VARCHAR(20) PATH '$."申银万国行业分类"')
-                                ) AS jt
-                                WHERE jt.sw_code LIKE :prefix
-                            )
-                        """).bindparams(prefix=f"{code}%")
-                        conditions.append(prefix_sql)
+                        # 前缀匹配：使用 LIKE
+                        conditions.append(Event.related_industries.like(f"{code}%"))
                     else:
                         # 精确匹配（三级行业代码）
-                        json_path = '$[*]."申银万国行业分类"'
-                        conditions.append(
-                            text("JSON_CONTAINS(JSON_EXTRACT(related_industries, :json_path), :code)")
-                            .bindparams(json_path=json_path, code=json.dumps(code))
-                        )
+                        conditions.append(Event.related_industries == code)
                 query = query.filter(db.or_(*conditions))
             else:
                 # 单个行业代码
                 if is_prefix_code(industry_code):
-                    # 前缀匹配：使用 JSON_TABLE + LIKE
-                    prefix_sql = text("""
-                        id IN (
-                            SELECT DISTINCT e2.id FROM event e2
-                            CROSS JOIN JSON_TABLE(
-                                e2.related_industries,
-                                '$[*]' COLUMNS (sw_code VARCHAR(20) PATH '$."申银万国行业分类"')
-                            ) AS jt
-                            WHERE jt.sw_code LIKE :prefix
-                        )
-                    """).bindparams(prefix=f"{industry_code}%")
-                    query = query.filter(prefix_sql)
+                    # 前缀匹配：使用 LIKE
+                    query = query.filter(Event.related_industries.like(f"{industry_code}%"))
                 else:
                     # 精确匹配（三级行业代码）
-                    json_path = '$[*]."申银万国行业分类"'
-                    query = query.filter(
-                        text("JSON_CONTAINS(JSON_EXTRACT(related_industries, :json_path), :industry_code)")
-                    ).params(json_path=json_path, industry_code=json.dumps(industry_code))
+                    query = query.filter(Event.related_industries == industry_code)
         # 新增：关键词/全文搜索过滤（MySQL JSON）
         if search_query:
             like_pattern = f"%{search_query}%"
diff --git a/app_vx.py b/app_vx.py
index 575e706d..20a2c2f0 100644
--- a/app_vx.py
+++ b/app_vx.py
@@ -1204,7 +1204,7 @@ class Event(db.Model):
     follower_count = db.Column(db.Integer, default=0)
 
     # 关联信息
-    related_industries = db.Column(db.JSON)
+    related_industries = db.Column(db.String(20))  # 申万行业代码，如 "S640701"
     keywords = db.Column(db.JSON)
     files = db.Column(db.JSON)
     importance = db.Column(db.String(20))
@@ -2962,37 +2962,14 @@ def api_get_events():
                     code_prefixes = SYWG_INDUSTRY_CACHE[industry_level].get(industry_classification, [])
 
                     if code_prefixes:
-                        # 构建查询条件：查找related_industries中包含这些前缀的事件
-                        if isinstance(db.engine.dialect, MySQLDialect):
-                            # MySQL JSON查询
-                            conditions = []
-                            for prefix in code_prefixes:
-                                conditions.append(
-                                    text("""
-                                    JSON_SEARCH(
-                                        related_industries, 
-                                        'one', 
-                                        CONCAT(:prefix, '%'),
-                                        NULL,
-                                        '$[*]."申银万国行业分类"'
-                                    ) IS NOT NULL
-                                    """).params(prefix=prefix)
-                                )
+                        # 构建查询条件：查找related_industries以这些前缀开头的事件
+                        # related_industries 现在是 varchar 格式，如 "S640701"
+                        conditions = []
+                        for prefix in code_prefixes:
+                            conditions.append(Event.related_industries.like(f"{prefix}%"))
 
-                            if conditions:
-                                query = query.filter(or_(*conditions))
-                        else:
-                            # 其他数据库
-                            pattern_conditions = []
-                            for prefix in code_prefixes:
-                                pattern_conditions.append(
-                                    text("related_industries::text LIKE :pattern").params(
-                                        pattern=f'%"申银万国行业分类": "{prefix}%'
-                                    )
-                                )
-
-                            if pattern_conditions:
-                                query = query.filter(or_(*pattern_conditions))
+                        if conditions:
+                            query = query.filter(or_(*conditions))
                     else:
                         # 没有找到匹配的行业代码，返回空结果
                         query = query.filter(Event.id == -1)
@@ -3019,25 +2996,8 @@ def api_get_events():
             if sector_result and sector_result[0]:
                 industry_code_to_search = sector_result[0]
 
-                # 在related_industries JSON中查找包含该代码的事件
-                if isinstance(db.engine.dialect, MySQLDialect):
-                    query = query.filter(
-                        text("""
-                        JSON_SEARCH(
-                            related_industries, 
-                            'one', 
-                            :industry_code,
-                            NULL,
-                            '$[*]."申银万国行业分类"'
-                        ) IS NOT NULL
-                        """)
-                    ).params(industry_code=industry_code_to_search)
-                else:
-                    query = query.filter(
-                        text("""
-                        related_industries::text LIKE :pattern
-                        """)
-                    ).params(pattern=f'%"申银万国行业分类": "{industry_code_to_search}"%')
+                # related_industries 现在是 varchar 格式，直接匹配
+                query = query.filter(Event.related_industries == industry_code_to_search)
             else:
                 # 如果没有找到对应的行业代码，返回空结果
                 query = query.filter(Event.id == -1)
diff --git a/public/avatars/web.png b/public/avatars/web.png
new file mode 100644
index 00000000..09c3d4be
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