diff --git a/assets/PageLoading.ts b/assets/PageLoading.ts
index f24e8bd..c97a6fc 100644
--- a/assets/PageLoading.ts
+++ b/assets/PageLoading.ts
@@ -3,6 +3,8 @@ import { ViewManager } from './scripts/core/ViewManager';
 import { LevelDataManager } from './scripts/utils/LevelDataManager';
 import { AuthManager } from './scripts/utils/AuthManager';
 import { StorageManager } from './scripts/utils/StorageManager';
+import { ShareManager } from './scripts/utils/ShareManager';
+import { WxSDK } from './scripts/utils/WxSDK';
 const { ccclass, property } = _decorator;
 
 /**
@@ -55,7 +57,27 @@ export class PageLoading extends Component {
             this._syncProgressFromServer();
         }
 
-        // 预加载 PageHome (80-100%)
+        // 检测分享码：从微信启动参数中获取
+        const shareCode = WxSDK.getShareCodeFromLaunch();
+        if (shareCode && loginSuccess) {
+            this._updateStatusLabel('正在加载挑战关卡...');
+            const joinSuccess = await ShareManager.instance.joinShare(shareCode);
+            if (joinSuccess) {
+                this._updateProgress(1);
+                this._updateStatusLabel('加载完成');
+                // 跳过首页，直接进入分享挑战关卡
+                ViewManager.instance.open('PageLevel', {
+                    params: { shareMode: true },
+                    onComplete: () => {
+                        this.node.destroy();
+                    },
+                });
+                return;
+            }
+            console.warn('[PageLoading] 加入分享失败，进入正常模式');
+        }
+
+        // 正常流程：预加载 PageHome (80-100%)
         ViewManager.instance.preload('PageHome',
             (progress) => {
                 this._updateProgress(0.8 + progress * 0.2);
diff --git a/assets/prefabs/PageLevel.ts b/assets/prefabs/PageLevel.ts
index f6a513c..9c5f42e 100644
--- a/assets/prefabs/PageLevel.ts
+++ b/assets/prefabs/PageLevel.ts
@@ -7,6 +7,7 @@ import { WxSDK } from 'db://assets/scripts/utils/WxSDK';
 import { LevelDataManager } from 'db://assets/scripts/utils/LevelDataManager';
 import { RuntimeLevelConfig } from 'db://assets/scripts/types/LevelTypes';
 import { ToastManager } from 'db://assets/scripts/utils/ToastManager';
+import { ShareManager } from 'db://assets/scripts/utils/ShareManager';
 import { PassModal } from 'db://assets/prefabs/PassModal';
 const { ccclass, property } = _decorator;
 
@@ -104,14 +105,26 @@ export class PageLevel extends BaseView {
     /** 通关弹窗实例 */
     private _passModalNode: Node | null = null;
 
+    /** 是否处于分享挑战模式 */
+    private _isShareMode: boolean = false;
+
     /**
      * 页面首次加载时调用
      */
     onViewLoad(): void {
         console.log('[PageLevel] onViewLoad');
-        // 从本地存储恢复关卡进度
-        this.currentLevelIndex = StorageManager.getCurrentLevelIndex();
-        console.log(`[PageLevel] 恢复关卡进度: 第 ${this.currentLevelIndex + 1} 关`);
+
+        const params = this.getParams();
+        this._isShareMode = params?.shareMode === true;
+
+        if (this._isShareMode) {
+            this.currentLevelIndex = 0;
+            console.log('[PageLevel] 进入分享挑战模式');
+        } else {
+            // 从本地存储恢复关卡进度
+            this.currentLevelIndex = StorageManager.getCurrentLevelIndex();
+            console.log(`[PageLevel] 恢复关卡进度: 第 ${this.currentLevelIndex + 1} 关`);
+        }
         this.updatePointsLabel();
         this.initIconSetting();
         this.initUnlockButtons();
@@ -160,13 +173,18 @@ export class PageLevel extends BaseView {
      * 初始化关卡（从 API 数据加载，异步确保资源就绪）
      */
     private async initLevel(): Promise<void> {
-        // 先尝试从缓存获取
-        let config = LevelDataManager.instance.getLevelConfig(this.currentLevelIndex);
+        let config: RuntimeLevelConfig | null = null;
 
-        if (!config) {
-            // 缓存中没有，异步加载
-            console.log(`[PageLevel] 关卡 ${this.currentLevelIndex + 1} 资源未缓存，开始加载...`);
-            config = await LevelDataManager.instance.ensureLevelReady(this.currentLevelIndex);
+        if (this._isShareMode) {
+            // 分享模式：从 ShareManager 获取关卡
+            config = await ShareManager.instance.ensureShareLevelReady(this.currentLevelIndex);
+        } else {
+            // 正常模式：先尝试缓存，再异步加载
+            config = LevelDataManager.instance.getLevelConfig(this.currentLevelIndex);
+            if (!config) {
+                console.log(`[PageLevel] 关卡 ${this.currentLevelIndex + 1} 资源未缓存，开始加载...`);
+                config = await LevelDataManager.instance.ensureLevelReady(this.currentLevelIndex);
+            }
         }
 
         if (!config) {
@@ -212,7 +230,14 @@ export class PageLevel extends BaseView {
         this.updateClockLabel();
 
         // 预加载下一关图片（静默加载，不阻塞）
-        LevelDataManager.instance.preloadNextLevel(this.currentLevelIndex);
+        if (this._isShareMode) {
+            const nextIndex = this.currentLevelIndex + 1;
+            if (nextIndex < ShareManager.instance.getShareLevelCount()) {
+                ShareManager.instance.ensureShareLevelReady(nextIndex).catch(() => {});
+            }
+        } else {
+            LevelDataManager.instance.preloadNextLevel(this.currentLevelIndex);
+        }
 
         console.log(`[PageLevel] 初始化关卡 ${this.currentLevelIndex + 1}, 答案长度: ${config.answer.length}`);
     }
@@ -356,7 +381,14 @@ export class PageLevel extends BaseView {
     private onIconSettingClick(): void {
         console.log('[PageLevel] IconSetting 点击，返回主页');
         this.playClickSound();
-        ViewManager.instance.back();
+
+        // 分享模式下栈中没有 PageHome，需要清除分享状态并直接打开首页
+        if (this._isShareMode) {
+            ShareManager.instance.clearShareMode();
+            ViewManager.instance.replace('PageHome');
+        } else {
+            ViewManager.instance.back();
+        }
     }
 
     // ========== 线索相关方法 ==========
@@ -656,10 +688,12 @@ export class PageLevel extends BaseView {
         // 播放成功音效
         this.playSuccessSound();
 
-        // 通关奖励：通过服务端增加积分
-        const levelId = this._currentConfig?.id ?? '';
-        await UserAssetsManager.instance.earnPoint(levelId);
-        this.updatePointsLabel();
+        // 通关奖励：分享模式下不增加积分
+        if (!this._isShareMode) {
+            const levelId = this._currentConfig?.id ?? '';
+            await UserAssetsManager.instance.earnPoint(levelId);
+            this.updatePointsLabel();
+        }
 
         // 显示通关弹窗
         this._showPassModal();
@@ -748,19 +782,29 @@ export class PageLevel extends BaseView {
      * 进入下一关
      */
     private async nextLevel(): Promise<void> {
-        // 保存当前关卡进度
-        StorageManager.onLevelCompleted(this.currentLevelIndex);
+        // 分享模式不保存本地进度
+        if (!this._isShareMode) {
+            StorageManager.onLevelCompleted(this.currentLevelIndex);
+        }
 
         this.currentLevelIndex++;
 
         // 检查是否还有关卡
-        const totalLevels = LevelDataManager.instance.getLevelCount();
+        const totalLevels = this._isShareMode
+            ? ShareManager.instance.getShareLevelCount()
+            : LevelDataManager.instance.getLevelCount();
 
         if (this.currentLevelIndex >= totalLevels) {
             // 所有关卡完成
             console.log('[PageLevel] 恭喜通关！');
             this.stopCountdown();
-            ViewManager.instance.back();
+
+            if (this._isShareMode) {
+                ShareManager.instance.clearShareMode();
+                ViewManager.instance.replace('PageHome');
+            } else {
+                ViewManager.instance.back();
+            }
             return;
         }
 
diff --git a/assets/prefabs/PageWriteLevels.ts b/assets/prefabs/PageWriteLevels.ts
index eea8a67..f0d0525 100644
--- a/assets/prefabs/PageWriteLevels.ts
+++ b/assets/prefabs/PageWriteLevels.ts
@@ -3,6 +3,7 @@ import { BaseView } from 'db://assets/scripts/core/BaseView';
 import { ViewManager } from 'db://assets/scripts/core/ViewManager';
 import { LevelDataManager } from 'db://assets/scripts/utils/LevelDataManager';
 import { ToastManager } from 'db://assets/scripts/utils/ToastManager';
+import { ShareManager } from 'db://assets/scripts/utils/ShareManager';
 const { ccclass, property } = _decorator;
 
 /**
@@ -78,6 +79,9 @@ export class PageWriteLevels extends BaseView {
     /** 缓存 view 节点的 UITransform，避免每次 _updateContentSize 重复查找 */
     private _viewTransform: UITransform | null = null;
 
+    /** 防止重复提交 */
+    private _isSubmitting: boolean = false;
+
     onViewLoad(): void {
         console.log('[PageWriteLevels] onViewLoad');
         this._initButtons();
@@ -92,6 +96,9 @@ export class PageWriteLevels extends BaseView {
         if (this.previewBtn) {
             this.previewBtn.on(Button.EventType.CLICK, this._onPreviewClick, this);
         }
+        if (this.completeBtn) {
+            this.completeBtn.on(Button.EventType.CLICK, this._onCompleteClick, this);
+        }
     }
 
     private _initScrollView(): void {
@@ -156,7 +163,10 @@ export class PageWriteLevels extends BaseView {
 
     onViewShow(): void {
         console.log('[PageWriteLevels] onViewShow');
-        this._initLevelList();
+        // 仅首次初始化列表，从预览页返回时保留选中状态
+        if (this._itemNodes.length === 0) {
+            this._initLevelList();
+        }
     }
 
     private _initLevelList(): void {
@@ -276,6 +286,8 @@ export class PageWriteLevels extends BaseView {
             const toggle = isSelected.getComponent(Toggle);
             if (toggle) {
                 toggle.isChecked = this._selectedIndices.has(index);
+                // 禁用 Toggle 交互，仅作为视觉指示器，选中逻辑由 item Button 统一处理
+                toggle.interactable = false;
             }
             const checkmark = isSelected.getChildByName('Checkmark');
             if (checkmark) {
@@ -428,14 +440,22 @@ export class PageWriteLevels extends BaseView {
         ViewManager.instance.back();
     }
 
-    private _onPreviewClick(): void {
+    /**
+     * 校验是否已选满关卡，未满则 Toast 提示
+     * @returns true 表示校验通过
+     */
+    private _validateSelection(): boolean {
         if (this._selectedIndices.size < MAX_SELECTION) {
             const remaining = MAX_SELECTION - this._selectedIndices.size;
             ToastManager.instance.show(`还需选择${remaining}个关卡`);
-            return;
+            return false;
         }
+        return true;
+    }
+
+    private _onPreviewClick(): void {
+        if (!this._validateSelection()) return;
         const shareTitle = this.shareTitleEditBox?.getComponent(EditBox)?.string?.trim() || '';
-        console.log('[PageWriteLevels] 预览按钮点击，标题:', shareTitle, '已选关卡:', Array.from(this._selectedIndices));
         ViewManager.instance.open('PagePreviewLevels', {
             params: {
                 selectedIndices: Array.from(this._selectedIndices),
@@ -444,6 +464,57 @@ export class PageWriteLevels extends BaseView {
         });
     }
 
+    private async _onCompleteClick(): Promise<void> {
+        if (!this._validateSelection()) return;
+
+        const shareTitle = this.shareTitleEditBox?.getComponent(EditBox)?.string?.trim() || '';
+        if (!shareTitle) {
+            ToastManager.instance.show('请输入分享标题');
+            return;
+        }
+
+        if (this._isSubmitting) return;
+        this._isSubmitting = true;
+
+        try {
+            const levelIds = this._getSelectedLevelIds();
+            if (levelIds.length !== MAX_SELECTION) {
+                ToastManager.instance.show('获取关卡数据失败，请重试');
+                return;
+            }
+
+            const shareCode = await ShareManager.instance.createShare(shareTitle, levelIds);
+            if (!shareCode) {
+                ToastManager.instance.show('创建分享失败，请重试');
+                return;
+            }
+
+            console.log('[PageWriteLevels] 创建分享成功, code:', shareCode);
+            ShareManager.instance.triggerWxShare(shareTitle, shareCode);
+            ToastManager.instance.show('分享创建成功！');
+        } catch (err) {
+            console.error('[PageWriteLevels] 完成按钮异常:', err);
+            ToastManager.instance.show('操作失败，请重试');
+        } finally {
+            this._isSubmitting = false;
+        }
+    }
+
+    /**
+     * 将选中的关卡索引转换为关卡 ID 数组
+     */
+    private _getSelectedLevelIds(): string[] {
+        const ids: string[] = [];
+        const sortedIndices = Array.from(this._selectedIndices).sort((a, b) => a - b);
+        for (const index of sortedIndices) {
+            const config = LevelDataManager.instance.getLevelConfig(index);
+            if (config) {
+                ids.push(config.id);
+            }
+        }
+        return ids;
+    }
+
     onViewHide(): void {
         console.log('[PageWriteLevels] onViewHide');
     }
@@ -456,6 +527,9 @@ export class PageWriteLevels extends BaseView {
         if (this.previewBtn) {
             this.previewBtn.off(Button.EventType.CLICK, this._onPreviewClick, this);
         }
+        if (this.completeBtn) {
+            this.completeBtn.off(Button.EventType.CLICK, this._onCompleteClick, this);
+        }
         if (this.scrollView) {
             this.scrollView.off(Node.EventType.TOUCH_START, this._onTouchStart, this);
             this.scrollView.off(Node.EventType.TOUCH_END, this._onTouchEnd, this);
diff --git a/assets/scripts/config/ApiConfig.ts b/assets/scripts/config/ApiConfig.ts
index 8ec42d2..6925551 100644
--- a/assets/scripts/config/ApiConfig.ts
+++ b/assets/scripts/config/ApiConfig.ts
@@ -14,8 +14,14 @@ export const API_ENDPOINTS = {
     USER_ASSETS_EARN: `${API_BASE}/user/assets/earn`,
     USER_GAME_DATA: `${API_BASE}/user/game-data`,
     LEVELS: `${API_BASE}/wechat-game/levels`,
+    SHARE_CREATE: `${API_BASE}/share`,
 } as const;
 
+/** 构建加入分享的 URL */
+export function getShareJoinUrl(code: string): string {
+    return `${API_BASE}/share/${code}/join`;
+}
+
 /** 积分操作原因 */
 export const POINT_REASONS = {
     HINT_UNLOCK: 'hint_unlock',
diff --git a/assets/scripts/types/ApiTypes.ts b/assets/scripts/types/ApiTypes.ts
index 31835b5..5973468 100644
--- a/assets/scripts/types/ApiTypes.ts
+++ b/assets/scripts/types/ApiTypes.ts
@@ -29,3 +29,29 @@ export interface GameData {
     user: { id: string; points: number };
     completedLevelIds: string[];
 }
+
+/** 创建分享响应 */
+export interface CreateShareData {
+    shareCode: string;
+    title: string;
+    levelCount: number;
+}
+
+/** 分享关卡数据 */
+export interface ShareLevelData {
+    id: string;
+    level: number;
+    imageUrl: string;
+    answer: string;
+    hint1: string;
+    hint2: string;
+    hint3: string;
+    sortOrder: number;
+}
+
+/** 加入分享响应 */
+export interface JoinShareData {
+    shareCode: string;
+    title: string;
+    levels: ShareLevelData[];
+}
diff --git a/assets/scripts/utils/ShareManager.ts b/assets/scripts/utils/ShareManager.ts
new file mode 100644
index 0000000..6d9e6ca
--- /dev/null
+++ b/assets/scripts/utils/ShareManager.ts
@@ -0,0 +1,167 @@
+import { SpriteFrame, Texture2D, ImageAsset, assetManager } from 'cc';
+import { HttpUtil } from './HttpUtil';
+import { WxSDK } from './WxSDK';
+import { API_ENDPOINTS, getShareJoinUrl, API_TIMEOUT } from '../config/ApiConfig';
+import { ApiEnvelope, CreateShareData, JoinShareData, ShareLevelData } from '../types/ApiTypes';
+import { RuntimeLevelConfig } from '../types/LevelTypes';
+
+/**
+ * 分享管理器
+ * 负责创建分享、加入分享、缓存分享关卡数据
+ */
+export class ShareManager {
+    private static _instance: ShareManager | null = null;
+
+    /** 分享模式的关卡数据（null 表示正常模式） */
+    private _shareLevels: RuntimeLevelConfig[] | null = null;
+
+    /** API 返回的原始关卡数据（保留 imageUrl 用于懒加载） */
+    private _shareApiLevels: ShareLevelData[] = [];
+
+    private _shareTitle: string = '';
+    private _shareCode: string | null = null;
+
+    /** 图片缓存：URL -> SpriteFrame */
+    private _imageCache: Map<string, SpriteFrame> = new Map();
+
+    static get instance(): ShareManager {
+        if (!this._instance) {
+            this._instance = new ShareManager();
+        }
+        return this._instance;
+    }
+
+    private constructor() {}
+
+    get isShareMode(): boolean {
+        return this._shareLevels !== null && this._shareLevels.length > 0;
+    }
+
+    async createShare(title: string, levelIds: string[]): Promise<string | null> {
+        try {
+            const response = await HttpUtil.post<ApiEnvelope<CreateShareData>>(
+                API_ENDPOINTS.SHARE_CREATE,
+                { title, levelIds },
+                API_TIMEOUT.DEFAULT,
+            );
+
+            if (!response.success || !response.data) {
+                console.error('[ShareManager] 创建分享失败:', response.message);
+                return null;
+            }
+
+            return response.data.shareCode;
+        } catch (err) {
+            console.error('[ShareManager] 创建分享异常:', err);
+            return null;
+        }
+    }
+
+    async joinShare(code: string): Promise<boolean> {
+        try {
+            const response = await HttpUtil.post<ApiEnvelope<JoinShareData>>(
+                getShareJoinUrl(code),
+                {},
+                API_TIMEOUT.DEFAULT,
+            );
+
+            if (!response.success || !response.data) {
+                console.error('[ShareManager] 加入分享失败:', response.message);
+                return false;
+            }
+
+            const { shareCode, title, levels } = response.data;
+            this._shareCode = shareCode;
+            this._shareTitle = title;
+            this._shareApiLevels = levels;
+
+            const runtimeLevels: RuntimeLevelConfig[] = levels.map((level) => ({
+                id: level.id,
+                name: `第${level.level}关`,
+                spriteFrame: null,
+                clue1: level.hint1,
+                clue2: level.hint2,
+                clue3: level.hint3,
+                answer: level.answer,
+            }));
+
+            // 预加载首关图片
+            if (levels.length > 0) {
+                const sf = await this._loadImage(levels[0].imageUrl);
+                if (sf) {
+                    runtimeLevels[0].spriteFrame = sf;
+                }
+            }
+
+            this._shareLevels = runtimeLevels;
+            console.log(`[ShareManager] 加入分享成功: ${title}, ${levels.length} 关`);
+            return true;
+        } catch (err) {
+            console.error('[ShareManager] 加入分享异常:', err);
+            return false;
+        }
+    }
+
+    async ensureShareLevelReady(index: number): Promise<RuntimeLevelConfig | null> {
+        if (!this._shareLevels || index < 0 || index >= this._shareLevels.length) {
+            return null;
+        }
+
+        const config = this._shareLevels[index];
+        if (config.spriteFrame) {
+            return config;
+        }
+
+        const apiLevel = this._shareApiLevels[index];
+        if (apiLevel?.imageUrl) {
+            const sf = await this._loadImage(apiLevel.imageUrl);
+            if (sf) {
+                config.spriteFrame = sf;
+            }
+        }
+
+        return config;
+    }
+
+    getShareLevelCount(): number {
+        return this._shareLevels?.length ?? 0;
+    }
+
+    triggerWxShare(title: string, shareCode: string): void {
+        WxSDK.shareAppMessage({
+            title: title || '来挑战我出的谐音梗吧！',
+            query: `shareCode=${shareCode}`,
+        });
+    }
+
+    clearShareMode(): void {
+        this._shareLevels = null;
+        this._shareApiLevels = [];
+        this._shareTitle = '';
+        this._shareCode = null;
+        this._imageCache.clear();
+    }
+
+    private _loadImage(url: string): Promise<SpriteFrame | null> {
+        const cached = this._imageCache.get(url);
+        if (cached) {
+            return Promise.resolve(cached);
+        }
+
+        return new Promise((resolve) => {
+            assetManager.loadRemote<ImageAsset>(url, (err, imageAsset) => {
+                if (err) {
+                    console.error('[ShareManager] 加载图片失败:', url, err);
+                    resolve(null);
+                    return;
+                }
+                const texture = new Texture2D();
+                texture.image = imageAsset;
+                const spriteFrame = new SpriteFrame();
+                spriteFrame.texture = texture;
+                this._imageCache.set(url, spriteFrame);
+                resolve(spriteFrame);
+            });
+        });
+    }
+}
diff --git a/assets/scripts/utils/ShareManager.ts.meta b/assets/scripts/utils/ShareManager.ts.meta
new file mode 100644
index 0000000..e7a7257
--- /dev/null
+++ b/assets/scripts/utils/ShareManager.ts.meta
@@ -0,0 +1,9 @@
+{
+  "ver": "4.0.24",
+  "importer": "typescript",
+  "imported": true,
+  "uuid": "6044a8d5-305c-4b68-8abd-6bde3da0505c",
+  "files": [],
+  "subMetas": {},
+  "userData": {}
+}
diff --git a/assets/scripts/utils/WxSDK.ts b/assets/scripts/utils/WxSDK.ts
index 1c6ed0b..4c87827 100644
--- a/assets/scripts/utils/WxSDK.ts
+++ b/assets/scripts/utils/WxSDK.ts
@@ -216,4 +216,24 @@ export class WxSDK {
             }
         });
     }
+
+    /**
+     * 从启动参数中获取分享码
+     * @returns 分享码，不存在则返回 null
+     */
+    static getShareCodeFromLaunch(): string | null {
+        const wxApi = WxSDK.getWx();
+        if (!wxApi) return null;
+
+        try {
+            const options = wxApi.getLaunchOptionsSync();
+            if (options?.query?.shareCode) {
+                console.log('[WxSDK] 检测到分享码:', options.query.shareCode);
+                return options.query.shareCode;
+            }
+        } catch (err) {
+            console.warn('[WxSDK] 获取启动参数失败:', err);
+        }
+        return null;
+    }
 }