diff --git a/src/api/models.py b/src/api/models.py
index e98df8c..1a095b9 100644
--- a/src/api/models.py
+++ b/src/api/models.py
@@ -6,12 +6,14 @@ from typing import Any, List, Optional, Dict
 from pydantic import BaseModel, PrivateAttr, Field, AliasChoices
 
 GAME_ID_MAP = {"bh3": 1, "ys": 2, "bh2": 3, "wd": 4, "dby": 5, "sr": 6, "zzz": 8}
-GAME_STR_MAP = {1: "bh3", 2: "ys", 3: "bh2", 4: "wd", 5: "dby", 6: "sr", 8: "zzz"}
+GAME_STR_MAP = {v: k for k, v in GAME_ID_MAP.items()}
 CHANNEL_MAP = {"ys": "yuanshen", "sr": "HSRCN", "zzz": "ZZZ_Game"}
+CHANNEL_OS_MAP = {"ys": "GenshinOverseas", "sr": "HSRCN", "zzz": "ZZZ_Game"}
 __all__ = (
     "GAME_ID_MAP",
     "GAME_STR_MAP",
     "CHANNEL_MAP",
+    "CHANNEL_OS_MAP",
     "clean_url",
     "get_images_params",
     "PostStat",
diff --git a/src/data/bg.json b/src/data/bg.json
index def0dd1..4e56a51 100644
--- a/src/data/bg.json
+++ b/src/data/bg.json
@@ -3,17 +3,17 @@
         {
             "id": "2",
             "icon": "https://fastcdn.hoyoverse.com/static-resource-v2/2023/11/08/9db76fb146f82c045bc276956f86e047_6878380451593228482.png",
-            "bg": "https://upload-os-bbs.hoyolab.com/upload/2024/05/30/45f550e5d5bf4f216011450466453a74_2229377313645390599.jpg?x-oss-process=image%2Fauto-orient%2C0%2Finterlace%2C1%2Fformat%2Cwebp%2Fquality%2Cq_70",
+            "bg": "https://upload-os-bbs.hoyolab.com/upload/2024/07/11/af3fa25fb0cac1959da97b6b867fdb57_6289156149732603194.jpg?x-oss-process=image/auto-orient,0/interlace,1/format,webp/quality,q_70",
             "name": "原神",
-            "bg_color": "#9DAF77",
+            "bg_color": "#244C74",
             "focus_channel_id": "30"
         },
         {
             "id": "6",
             "icon": "https://hyl-static-res-prod.hoyolab.com/communityweb/business/starrail_hoyoverse.png",
-            "bg": "https://upload-os-bbs.hoyolab.com/upload/2024/06/07/97ff3a94b16fc6623851731407eefff1_3539500584346988147.jpg?x-oss-process=image%2Fauto-orient%2C0%2Finterlace%2C1%2Fformat%2Cwebp%2Fquality%2Cq_70",
+            "bg": "https://upload-os-bbs.hoyolab.com/upload/2024/07/31/8981eebc4cd223331a0eedaca9b73f19_928166619611008481.jpg?x-oss-process=image/auto-orient,0/interlace,1/format,webp/quality,q_70",
             "name": "崩坏：星穹铁道",
-            "bg_color": "#5D0AC9",
+            "bg_color": "#101521",
             "focus_channel_id": "42"
         },
         {
@@ -27,25 +27,25 @@
         {
             "id": "1",
             "icon": "https://fastcdn.hoyoverse.com/static-resource-v2/2024/02/29/3d96534fd7a35a725f7884e6137346d1_3942255444511793944.png",
-            "bg": "https://upload-os-bbs.hoyolab.com/upload/2024/06/04/28e9275e92f4362d4909770009304971_5774434829021569250.jpg?x-oss-process=image%2Fauto-orient%2C0%2Finterlace%2C1%2Fformat%2Cwebp%2Fquality%2Cq_70",
+            "bg": "https://upload-os-bbs.hoyolab.com/upload/2024/07/24/c6e8a685963be61470df222b71e28a3f_2653988210193011390.jpg?x-oss-process=image/auto-orient,0/interlace,1/format,webp/quality,q_70",
             "name": "Honkai Impact 3rd",
-            "bg_color": "#0A2966",
+            "bg_color": "#581312",
             "focus_channel_id": "0"
         },
         {
             "id": "4",
             "icon": "https://hyl-static-res-prod.hoyolab.com/communityweb/business/nxx_hoyoverse.png",
-            "bg": "https://upload-os-bbs.hoyolab.com/upload/2024/07/12/6884e4a2d1200dac51ac55391b377a74_8800404318031699849.png?x-oss-process=image/auto-orient,0/interlace,1/format,webp/quality,q_70",
+            "bg": "https://upload-os-bbs.hoyolab.com/upload/2023/10/24/d97b3eb5763dba18bc137929ce53ba24_8118580296436267822.png",
             "name": "未定事件簿",
-            "bg_color": "#1D1D1F",
+            "bg_color": "#2E3857",
             "focus_channel_id": "0"
         },
         {
             "id": "5",
             "icon": "https://webstatic.hoyoverse.com/upload/static-resource/2022/08/04/8a31e3d6bce7684556cd45b1e1c309bf_1216320235452608527.png",
-            "bg": "https://fastcdn.hoyoverse.com/static-resource-v2/2023/08/01/f9d8c5df30c96d6d5c50aa10e201b171_429483834205307540.jpg",
+            "bg": "https://upload-os-bbs.hoyolab.com/upload/2024/08/09/1e4a3ac09f82fd7f7702c3ec19dc38fd_7412144515818250508.jpg?x-oss-process=image/auto-orient,0/interlace,1/format,webp/quality,q_70",
             "name": "HoYoLAB",
-            "bg_color": "#24479B",
+            "bg_color": "#61C1F2",
             "focus_channel_id": "0"
         }
     ]
diff --git a/src/render/article.py b/src/render/article.py
index 271f7b9..9b7b062 100644
--- a/src/render/article.py
+++ b/src/render/article.py
@@ -12,6 +12,7 @@ from src.api.models import (
     PostType,
     PostRecommend,
     CHANNEL_MAP,
+    CHANNEL_OS_MAP,
     GAME_ID_MAP,
     get_images_params,
     clean_url,
@@ -162,9 +163,10 @@ def get_public_data(
     related_posts: Callable[[PostInfo, I18n], List[PostRecommend]],
     i18n: I18n,
 ) -> Dict:
+    channel_map = CHANNEL_OS_MAP if post_info.hoyolab else CHANNEL_MAP
     return {
         "published_time": post_info.created_at.strftime("%Y-%m-%dT%H:%M:%S.%fZ"),
-        "channel": CHANNEL_MAP.get(post_info.game_id_str, "HSRCN"),
+        "channel": channel_map.get(post_info.game_id_str, "HSRCN"),
         "stat": parse_stat(post_info.stat),
         "post": post_info,
         "author": post_info["post"]["user"],