diff --git a/api/system.js b/api/system.js
index d841023..4ca2c1a 100644
--- a/api/system.js
+++ b/api/system.js
@@ -2,7 +2,7 @@ import { request } from "@/utils/request.js";
 
 export const abilityCheck = async (scene) => {
   return request({
-    url: "/api/blessing/ability/check?scene=" + scene,
+    url: "/api/ability/check?scene=" + scene,
     method: "GET",
   });
 };
diff --git a/pages/avatar/download.vue b/pages/avatar/download.vue
index e6305e8..e7a7a51 100644
--- a/pages/avatar/download.vue
+++ b/pages/avatar/download.vue
@@ -116,7 +116,8 @@ import {
   saveViewRequest,
 } from "@/utils/common.js";
 import { onShareAppMessage, onShareTimeline, onLoad } from "@dcloudio/uni-app";
-import { getShareReward, abilityCheck, watchAdReward } from "@/api/system.js";
+import { getShareReward, watchAdReward } from "@/api/system.js";
+import { checkAbilityAndHandle } from "@/utils/ability.js";
 import { useUserStore } from "@/stores/user";
 import NavBar from "@/components/NavBar/NavBar.vue";
 import RewardAd from "@/components/RewardAd/RewardAd.vue";
@@ -313,41 +314,11 @@ const downloadAvatar = async (item) => {
     return;
   }
 
-  // Use avatar specific ability check if exists, otherwise reuse generic or skip?
-  // Assuming 'avatar_download' ability check exists or similar
-  const abilityRes = await abilityCheck("avatar_download");
-  if (!abilityRes.canUse) {
-    if (
-      abilityRes?.blockType === "need_share" &&
-      abilityRes?.message === "分享可继续"
-    ) {
-      uni.showToast({
-        title: "分享给好友即可下载",
-        icon: "none",
-      });
-      return;
-    }
-    if (
-      abilityRes?.blockType === "need_ad" &&
-      abilityRes?.message === "观看广告可继续"
-    ) {
-      uni.showModal({
-        title: "积分不足",
-        content: "观看广告可获得50积分，继续下载",
-        success: (res) => {
-          if (res.confirm) {
-            rewardAdRef.value.show();
-          }
-        },
-      });
-      return;
-    }
-    uni.showToast({
-      title: "您今日下载次数已用完，明日再试",
-      icon: "none",
-    });
-    return;
-  }
+  const canProceed = await checkAbilityAndHandle(
+    "avatar_download",
+    rewardAdRef,
+  );
+  if (!canProceed) return;
 
   uni.showLoading({ title: "下载中..." });
   try {
diff --git a/pages/index/index.vue b/pages/index/index.vue
index 1b3411c..49f9e09 100644
--- a/pages/index/index.vue
+++ b/pages/index/index.vue
@@ -272,7 +272,7 @@
           </view>
           <view class="rule-item">
             <uni-icons type="calendar-filled" size="18" color="#ff9800" />
-            <text class="rule-text">每日签到：+40积分</text>
+            <text class="rule-text">每日签到：+20积分</text>
           </view>
           <view class="rule-item">
             <uni-icons type="videocam-filled" size="18" color="#ff9800" />
diff --git a/pages/wallpaper/detail.vue b/pages/wallpaper/detail.vue
index 7ecb9ae..ac2bc19 100644
--- a/pages/wallpaper/detail.vue
+++ b/pages/wallpaper/detail.vue
@@ -115,7 +115,8 @@ import {
   trackRecord,
 } from "@/utils/common.js";
 import { useUserStore } from "@/stores/user";
-import { abilityCheck, watchAdReward } from "@/api/system.js";
+import { watchAdReward } from "@/api/system.js";
+import { checkAbilityAndHandle } from "@/utils/ability.js";
 import LoginPopup from "@/components/LoginPopup/LoginPopup.vue";
 import RewardAd from "@/components/RewardAd/RewardAd.vue";
 
@@ -287,39 +288,11 @@ const downloadWallpaper = async () => {
     return;
   }
 
-  const abilityRes = await abilityCheck("wallpaper_download");
-  if (!abilityRes.canUse) {
-    if (
-      abilityRes?.blockType === "need_share" &&
-      abilityRes?.message === "分享可继续"
-    ) {
-      uni.showToast({
-        title: "分享给好友即可下载",
-        icon: "none",
-      });
-      return;
-    }
-    if (
-      abilityRes?.blockType === "need_ad" &&
-      abilityRes?.message === "观看广告可继续"
-    ) {
-      uni.showModal({
-        title: "积分不足",
-        content: "观看广告可获得50积分，继续下载",
-        success: (res) => {
-          if (res.confirm) {
-            rewardAdRef.value.show();
-          }
-        },
-      });
-      return;
-    }
-    uni.showToast({
-      title: "您今日壁纸下载次数已用完，明日再试",
-      icon: "none",
-    });
-    return;
-  }
+  const canProceed = await checkAbilityAndHandle(
+    "wallpaper_download",
+    rewardAdRef,
+  );
+  if (!canProceed) return;
 
   uni.showLoading({ title: "下载中..." });
   try {
diff --git a/pages/wallpaper/index.vue b/pages/wallpaper/index.vue
index 8b399eb..0d6edae 100644
--- a/pages/wallpaper/index.vue
+++ b/pages/wallpaper/index.vue
@@ -104,7 +104,8 @@ import {
   getShareToken,
 } from "@/utils/common.js";
 import { onShareAppMessage, onShareTimeline, onLoad } from "@dcloudio/uni-app";
-import { getShareReward, abilityCheck, watchAdReward } from "@/api/system.js";
+import { getShareReward, watchAdReward } from "@/api/system.js";
+import { checkAbilityAndHandle } from "@/utils/ability.js";
 import { useUserStore } from "@/stores/user";
 import { saveViewRequest, trackRecord } from "@/utils/common.js";
 import NavBar from "@/components/NavBar/NavBar.vue";
@@ -303,39 +304,11 @@ const downloadWallpaper = async (item) => {
     return;
   }
 
-  const abilityRes = await abilityCheck("wallpaper_download");
-  if (!abilityRes.canUse) {
-    if (
-      abilityRes?.blockType === "need_share" &&
-      abilityRes?.message === "分享可继续"
-    ) {
-      uni.showToast({
-        title: "分享给好友即可下载",
-        icon: "none",
-      });
-      return;
-    }
-    if (
-      abilityRes?.blockType === "need_ad" &&
-      abilityRes?.message === "观看广告可继续"
-    ) {
-      uni.showModal({
-        title: "积分不足",
-        content: "观看广告可获得50积分，继续下载",
-        success: (res) => {
-          if (res.confirm) {
-            rewardAdRef.value.show();
-          }
-        },
-      });
-      return;
-    }
-    uni.showToast({
-      title: "您今日壁纸下载次数已用完，明日再试",
-      icon: "none",
-    });
-    return;
-  }
+  const canProceed = await checkAbilityAndHandle(
+    "wallpaper_download",
+    rewardAdRef,
+  );
+  if (!canProceed) return;
 
   uni.showLoading({ title: "下载中..." });
   try {
diff --git a/utils/ability.js b/utils/ability.js
new file mode 100644
index 0000000..01e9740
--- /dev/null
+++ b/utils/ability.js
@@ -0,0 +1,67 @@
+import { abilityCheck } from "@/api/system";
+
+/**
+ * Checks if a user has the ability to perform an action (e.g., download).
+ * Handles common blocking scenarios like "need_share" or "need_ad".
+ *
+ * @param {string} scene - The scene identifier for the ability check (e.g., "wallpaper_download").
+ * @param {Object} rewardAdRef - The ref to the RewardAd component (must have a .value.show() method or be the instance itself).
+ * @returns {Promise<boolean>} - Returns true if the action can proceed, false otherwise.
+ */
+export const checkAbilityAndHandle = async (scene, rewardAdRef) => {
+  try {
+    const abilityRes = await abilityCheck(scene);
+    if (abilityRes.canUse) {
+      return true;
+    }
+
+    if (
+      abilityRes?.blockType === "need_share" &&
+      abilityRes?.message === "分享可继续"
+    ) {
+      uni.showToast({
+        title: "分享给好友即可下载",
+        icon: "none",
+      });
+      return false;
+    }
+
+    if (
+      abilityRes?.blockType === "need_ad" &&
+      abilityRes?.message === "观看广告可继续"
+    ) {
+      uni.showModal({
+        title: "积分不足",
+        content: "观看广告可获得50积分，继续下载",
+        success: (res) => {
+          if (res.confirm) {
+            // Check if rewardAdRef is a ref (has .value) or the component instance itself
+            if (
+              rewardAdRef &&
+              rewardAdRef.value &&
+              typeof rewardAdRef.value.show === "function"
+            ) {
+              rewardAdRef.value.show();
+            } else if (rewardAdRef && typeof rewardAdRef.show === "function") {
+              rewardAdRef.show();
+            } else {
+              console.error("RewardAd component reference is invalid");
+              uni.showToast({ title: "广告加载失败", icon: "none" });
+            }
+          }
+        },
+      });
+      return false;
+    }
+
+    uni.showToast({
+      title: "您今日下载次数已用完，明日再试",
+      icon: "none",
+    });
+    return false;
+  } catch (e) {
+    console.error("Ability check failed", e);
+    uni.showToast({ title: "系统繁忙，请稍后重试", icon: "none" });
+    return false;
+  }
+};