diff --git a/docs/qqbot-bangdream-tsugu-global-refactor-plan.md b/docs/qqbot-bangdream-tsugu-global-refactor-plan.md
index dd5afc0..9627227 100644
--- a/docs/qqbot-bangdream-tsugu-global-refactor-plan.md
+++ b/docs/qqbot-bangdream-tsugu-global-refactor-plan.md
@@ -299,6 +299,7 @@ export interface TsuguHook {
 - 已新增 `cache-client-policy.spec.ts`，覆盖缓存客户端 retry/status/not-found 策略；`file-cache-client.spec.ts` 补 SVG 缺失资源 404 缓存，避免 SVG 素材缺失仍反复请求。
 - 本地图片烟测已生成查歌 `136`、查活动 `50` 简易背景和真实活动背景图片，证明 provider/repository 第一段迁移后仍能输出非空图片。
 - 已新增 `models/song-resource-repository.ts`，把 `Song` 的歌曲详情、谱面、封面路径、封面完整 URL 和封面缺失时服务器回退下载收口到不依赖 `Song` 类的资源 repository，避免 `song.ts` 继续直接拼 Bestdori API/asset 路径；`song-resource-repository.spec.ts` 覆盖 detail/chart provider 调用、13/40 旧封面批次、273 强制 CN 和封面 fallback 行为，本地 `/查曲 136`、`/查谱面 136 expert` 图片 smoke 输出非空。
+- 收尾批量把 `Song.getSongChart`、`SongResourceRepository.getChart` 和 `drawBestdoriPreview` 的谱面协议改为 `BestdoriNote[]`，移除 `drawSongChart` 的 `as any`；`EventStage.getData` 透传 `EventStageDataRows<T>`，`stageType`/`rotationMusics` 改为 repository 行类型并用一次 `Promise.all` 加载；`readExcelFile` 改为泛型 `Record<string, unknown>` 输出；`asset-cache-client` 和 `server.ts` 清理参数命名与 `Array<any>` 残留，本地 `/查谱面 136 expert`、`/查试炼 310` smoke 输出非空。
 - 已新增 `models/card-resource-repository.ts`，把 `Card` 的详情请求、资源批次目录、图标/插画/trim 图片路径和重图缓存策略收口到 provider-backed repository；`card-resource-repository.spec.ts` 覆盖 `/api/cards` 缓存参数、`9999` 后资源批次、CN 优先资源路径和非 icon 图片 `memoryCache=false`，本地 `/查卡 472` 图片 smoke 输出非空。
 - 已新增 `models/gacha-resource-repository.ts`，把 `Gacha` 的详情请求、首页横幅、screen 背景、`bg1` fallback 和 Logo 资源路径收口到 provider-backed repository；`gacha-resource-repository.spec.ts` 覆盖 `/api/gacha` 缓存参数、CN 优先 screen 路径、横幅缺失回退 Logo 和背景 fallback，本地 `/查卡池 259`、`/抽卡模拟 10 259` 图片 smoke 输出非空。
 - 已新增 `models/event-stage-data-repository.ts`，把 `EventStage` 的 festival stages/rotationMusics 数据请求从 `bestdoriUrl + callAPIAndCacheResponse` 收口到 provider-backed repository；`event-stage-data-repository.spec.ts` 覆盖两个 festival API 路径和缓存参数，本地 `/查试炼 310` 保持拆成 5 张图片输出。
@@ -399,6 +400,7 @@ export interface TsuguHook {
 - 已新增 `render-blocks/list-rarity-spec.ts`，收口星级列表的文字大小、间距和特训星图使用阈值；`list-rarity.ts` 改为消费 spec，星图资源加载、星级数量和列表绘制顺序保持不变；`list-rarity-spec.spec.ts` 覆盖列表规格和 3/4/5 星及未特训边界，本地 `/查卡 472` 图片 smoke 输出非空。
 - 已批量新增 `render-blocks/skill-text-spec.ts`、`list-entity-spec.ts`、`degree-list-spec.ts`、`data-block-spec.ts`、`list-player-ranking-spec.ts`、`list-time-spec.ts`、`timeline-chart-spec.ts`、`cutoff-chart-spec.ts`、`gacha-list-spec.ts`，收口技能角标、基础实体列表、称号/活动奖励称号、数据块、玩家排名行、时间格式、时间线/档线图表和卡池列表文案/布局规格；`skill-text.ts`、`list-attribute.ts`、`list-band.ts`、`list-character.ts`、`degree-badge.ts`、`list-degree-list.ts`、`data-block.ts`、`list-player-ranking.ts`、`list-time.ts`、`timeline-chart.ts`、`cutoff-chart.ts`、`list-gacha-payment-method.ts`、`list-gacha-pick-up.ts`、`list-gacha-rate.ts` 已改为消费 spec；同步修复 `list-band.ts` 多乐队分支误用 `this.hasIcon` 导致图标判断失效的问题；新增对应 8 组 spec 单测，本地 `/查卡 472`、`/查卡池 259`、`/查活动 50`、`/ycx 100 50 cn`、`/查谱面 136 expert` 图片 smoke 输出非空。
 - 已补充 `song-chart-preview-spec.ts` 的封面信息块偏移、ID/难度面板、轨道渐变和双押线高度规格，`song-chart-preview.ts` 不再在绘制函数中散落这些视觉常量；`song-chart-preview-spec.spec.ts` 覆盖新增规格，本地 `/查谱面 136 expert` 图片 smoke 输出非空。
+- 收尾批量把谱面预览的绘图上下文改为 `CanvasRenderingContext2D`，`timeline-chart-spec.ts` 定义 `TimelineChartPoint/TimelineChartDataset`，`Cutoff.getChartData` 和 `CutoffEventTop.getChartData` 统一输出毫秒时间戳而不是 `Date` 对象；`drawTimeLineChart` 改用 typed `ChartConfiguration`，只在 skia-canvas 与 Chart.js 的 `ChartItem` 兼容边界保留显式 `unknown` 转换；同步修正 `labelName`、`cutoffEventTop`、`accuracy`、`constellationTextImage` 等拼写残留。本地 BangDream Tsugu 55 个 Jest suite / 186 个测试、`pnpm run typecheck`、scoped ESLint、`pnpm run build` 通过，`/查谱面 136 expert`、`/ycx 100 50 cn`、`/lsycx 100 50 cn`、`/查试炼 310` 图片 smoke 输出非空。
 - smoke/Jenkins/远程调试卡点继续按已固化规则处理：同一卡点第二次尝试前必须改变可验证变量；Jenkins 查询 URL 含方括号时用 `curl -g` 或改查 Jenkins home；线上图片 smoke 必须查询 `commandId`、拉回图片、展示图片、查日志并清理本轮临时目录；PowerShell 双引号 here-string 中不要写 JS `${...}` 模板字面量，避免被 PowerShell 提前插值；smoke 没有真实图片落盘时必须失败。
 
 ### Phase 6：策略 policy 和时间/档线规则
diff --git a/src/qqbot/plugins/bangDream/tsugu/command-renderers/character-detail.ts b/src/qqbot/plugins/bangDream/tsugu/command-renderers/character-detail.ts
index 91ec55f..c2f4c5f 100644
--- a/src/qqbot/plugins/bangDream/tsugu/command-renderers/character-detail.ts
+++ b/src/qqbot/plugins/bangDream/tsugu/command-renderers/character-detail.ts
@@ -168,11 +168,11 @@ export async function drawCharacterDetail(
     key: '生日',
   });
   //星座
-  const constellationTextImafe = drawList({
+  const constellationTextImage = drawList({
     text: constellationList[character.profile.constellation],
     key: '星座',
   });
-  list.push(drawListMerge([birthdayTextImage, constellationTextImafe]));
+  list.push(drawListMerge([birthdayTextImage, constellationTextImage]));
   list.push(line);
   //身高
   const heightTextImage = drawList({
diff --git a/src/qqbot/plugins/bangDream/tsugu/command-renderers/song-chart.ts b/src/qqbot/plugins/bangDream/tsugu/command-renderers/song-chart.ts
index 8592a56..089729b 100644
--- a/src/qqbot/plugins/bangDream/tsugu/command-renderers/song-chart.ts
+++ b/src/qqbot/plugins/bangDream/tsugu/command-renderers/song-chart.ts
@@ -46,7 +46,7 @@ export async function drawSongChart(
       diff: difficultyName[difficultyId],
       cover: song.getSongJacketImageURL(displayedServerList),
     },
-    songChart as any,
+    songChart,
   );
 
   let buffer: Buffer;
diff --git a/src/qqbot/plugins/bangDream/tsugu/data-clients/asset-cache-client.ts b/src/qqbot/plugins/bangDream/tsugu/data-clients/asset-cache-client.ts
index 080b925..fbc1ebb 100644
--- a/src/qqbot/plugins/bangDream/tsugu/data-clients/asset-cache-client.ts
+++ b/src/qqbot/plugins/bangDream/tsugu/data-clients/asset-cache-client.ts
@@ -22,14 +22,14 @@ const memoryCache: { [url: string]: Buffer } = {};
  * 在数据下载与缓存层中下载File。
  *
  * @param url - 远端资源地址。
- * @param IgnoreErr - IgnoreErr参数，未传入时使用默认值。
+ * @param ignoreError - ignoreError参数，未传入时使用默认值。
  * @param overwrite - overwrite参数，未传入时使用默认值。
  * @param retryCount - retryCount参数，未传入时使用默认值。
  * @returns 异步处理结果。
  */
 async function downloadFile(
   url: string,
-  IgnoreErr: boolean = true,
+  ignoreError: boolean = true,
   overwrite = false,
   retryCount = 3,
 ): Promise<Buffer> {
@@ -84,7 +84,7 @@ async function downloadFile(
       errUrl[url] = Date.now();
     }
 
-    if ((url.includes('.png') || url.includes('.svg')) && IgnoreErr) {
+    if ((url.includes('.png') || url.includes('.svg')) && ignoreError) {
       return assetErrorImageBuffer;
     }
 
@@ -96,17 +96,17 @@ async function downloadFile(
  * 在数据下载与缓存层中下载File缓存。
  *
  * @param url - 远端资源地址。
- * @param IgnoreErr - IgnoreErr参数，未传入时使用默认值。
+ * @param ignoreError - ignoreError参数，未传入时使用默认值。
  * @returns 异步处理结果。
  */
 async function downloadFileCache(
   url: string,
-  IgnoreErr = true,
+  ignoreError = true,
 ): Promise<Buffer> {
   if (memoryCache[url]) {
     return memoryCache[url];
   }
-  const data = await downloadFile(url, IgnoreErr);
+  const data = await downloadFile(url, ignoreError);
   if (process.env.MEMORY_CACHE == 'true') {
     memoryCache[url] = data;
   }
diff --git a/src/qqbot/plugins/bangDream/tsugu/models/cutoff-event-top.ts b/src/qqbot/plugins/bangDream/tsugu/models/cutoff-event-top.ts
index 21f8bad..76f20fb 100644
--- a/src/qqbot/plugins/bangDream/tsugu/models/cutoff-event-top.ts
+++ b/src/qqbot/plugins/bangDream/tsugu/models/cutoff-event-top.ts
@@ -87,38 +87,38 @@ export class CutoffEventTop {
    * @returns 计算后的数值。
    */
   getChartData(setStartToZero = false): {
-    [key: number]: { x: Date; y: number }[];
+    [key: number]: { x: number; y: number }[];
   } {
     if (this.isExist == false) {
       return;
     }
-    const chartDate: { [key: number]: { x: Date; y: number }[] } = {};
+    const chartDate: { [key: number]: { x: number; y: number }[] } = {};
     for (let i = 0; i < this.points.length; i++) {
       const element = this.points[i];
       if (!(element.uid in chartDate)) {
         chartDate[element.uid] = [];
         if (setStartToZero) {
-          chartDate[element.uid].push({ x: new Date(0), y: 0 });
+          chartDate[element.uid].push({ x: 0, y: 0 });
           chartDate[element.uid].push({
-            x: new Date(element.time - this.startAt),
+            x: element.time - this.startAt,
             y: element.value,
           });
         } else {
-          chartDate[element.uid].push({ x: new Date(this.startAt), y: 0 });
+          chartDate[element.uid].push({ x: this.startAt, y: 0 });
           chartDate[element.uid].push({
-            x: new Date(element.time),
+            x: element.time,
             y: element.value,
           });
         }
       } else {
         if (setStartToZero) {
           chartDate[element.uid].push({
-            x: new Date(element.time - this.startAt),
+            x: element.time - this.startAt,
             y: element.value,
           });
         } else {
           chartDate[element.uid].push({
-            x: new Date(element.time),
+            x: element.time,
             y: element.value,
           });
         }
diff --git a/src/qqbot/plugins/bangDream/tsugu/models/cutoff.ts b/src/qqbot/plugins/bangDream/tsugu/models/cutoff.ts
index d3a62ca..545118e 100644
--- a/src/qqbot/plugins/bangDream/tsugu/models/cutoff.ts
+++ b/src/qqbot/plugins/bangDream/tsugu/models/cutoff.ts
@@ -634,15 +634,15 @@ export class Cutoff {
    * @param setStartToZero - setStartToZero参数，未传入时使用默认值。
    * @returns 计算后的数值。
    */
-  getChartData(setStartToZero = false): { x: Date; y: number }[] {
+  getChartData(setStartToZero = false): { x: number; y: number }[] {
     if (this.isExist == false) {
       return [];
     }
-    const chartData: { x: Date; y: number }[] = [];
+    const chartData: { x: number; y: number }[] = [];
     if (setStartToZero) {
-      chartData.push({ x: new Date(0), y: 0 });
+      chartData.push({ x: 0, y: 0 });
     } else {
-      chartData.push({ x: new Date(this.startAt), y: 0 });
+      chartData.push({ x: this.startAt, y: 0 });
     }
 
     // 在访问 this.cutoffs[0].time 之前检查 this.cutoffs 是否存在且长度大于0
@@ -655,11 +655,11 @@ export class Cutoff {
       if (setStartToZero) {
         // 确保 tempTime 不为 null 才执行减法操作
         chartData.push({
-          x: tempTime ? new Date(element.time - this.startAt) : new Date(0),
+          x: tempTime ? element.time - this.startAt : 0,
           y: element.ep,
         });
       } else {
-        chartData.push({ x: new Date(element.time), y: element.ep });
+        chartData.push({ x: element.time, y: element.ep });
       }
       tempTime = element.time;
     }
diff --git a/src/qqbot/plugins/bangDream/tsugu/models/event-stage.ts b/src/qqbot/plugins/bangDream/tsugu/models/event-stage.ts
index 647ad4d..da24fad 100644
--- a/src/qqbot/plugins/bangDream/tsugu/models/event-stage.ts
+++ b/src/qqbot/plugins/bangDream/tsugu/models/event-stage.ts
@@ -7,6 +7,9 @@ import {
 } from '@/qqbot/plugins/bangDream/tsugu/models/bangdream-constants';
 import {
   eventStageDataRepository,
+  type EventStageDataRows,
+  type EventStageRotationMusicRow,
+  type EventStageTypeRow,
   type EventStageDataType,
 } from '@/qqbot/plugins/bangDream/tsugu/models/event-stage-data-repository';
 
@@ -28,8 +31,8 @@ export class EventStage {
   eventId: number;
   isExist: boolean = false;
   isInitFull = false;
-  stageType: Array<{ type: string; startAt: string; endAt: string }>;
-  rotationMusics: Array<{ musicId: string; startAt: string; endAt: string }>;
+  stageType: EventStageTypeRow[] = [];
+  rotationMusics: EventStageRotationMusicRow[] = [];
   /**
    * 构造 EventStage 实例，并初始化该模型的本地基础字段。
    *
@@ -59,10 +62,12 @@ export class EventStage {
       return;
     }
     try {
-      const stageData = await this.getData(true, 'stages');
-      const rotationMusicsData = await this.getData(true, 'rotationMusics');
-      this.stageType = stageData as any;
-      this.rotationMusics = rotationMusicsData as any;
+      const [stageData, rotationMusicsData] = await Promise.all([
+        this.getData(true, 'stages'),
+        this.getData(true, 'rotationMusics'),
+      ]);
+      this.stageType = stageData;
+      this.rotationMusics = rotationMusicsData;
       this.isInitFull = true;
     } catch {
       this.isExist = false;
@@ -74,7 +79,10 @@ export class EventStage {
    * @param update - update参数，未传入时使用默认值。
    * @param type - 数据类型或匹配类型。
    */
-  async getData(update: boolean = true, type: EventStageDataType) {
+  async getData<T extends EventStageDataType>(
+    update: boolean = true,
+    type: T,
+  ): Promise<EventStageDataRows<T>> {
     return await eventStageDataRepository.getFestivalData(
       this.eventId,
       type,
@@ -88,25 +96,26 @@ export class EventStage {
    * @returns 处理后的列表。
    */
   getStageList(): Stage[] {
-    //获取所有的stage,并且按照时间排序 [{type,startAt,endAt,songIdList}]
     if (!this.isInitFull) {
-      return;
+      return [];
     }
-    const temp = {};
-    for (const i in this.rotationMusics) {
-      const tempStartAt = this.rotationMusics[i].startAt;
-      if (temp[tempStartAt] == undefined) {
-        temp[tempStartAt] = {
-          startAt: this.rotationMusics[i].startAt,
-          endAt: this.rotationMusics[i].endAt,
+    const groupedByStartAt: Record<
+      string,
+      { startAt: string; endAt: string; music: number[] }
+    > = {};
+    for (const rotationMusic of this.rotationMusics) {
+      const tempStartAt = rotationMusic.startAt;
+      if (groupedByStartAt[tempStartAt] == undefined) {
+        groupedByStartAt[tempStartAt] = {
+          startAt: rotationMusic.startAt,
+          endAt: rotationMusic.endAt,
           music: [],
         };
       }
-      temp[tempStartAt].music.push(this.rotationMusics[i].musicId);
+      groupedByStartAt[tempStartAt].music.push(Number(rotationMusic.musicId));
     }
     const tempStageList: Stage[] = [];
-    for (const i in temp) {
-      const element = temp[i];
+    for (const element of Object.values(groupedByStartAt)) {
       const tempStartAt = parseInt(element.startAt);
       const tempEndAt = parseInt(element.endAt);
       const tempStageType = this.getStageTypeByTime(tempStartAt, tempEndAt);
@@ -114,10 +123,9 @@ export class EventStage {
         type: tempStageType,
         startAt: tempStartAt,
         endAt: tempEndAt,
-        songIdList: temp[i].music,
+        songIdList: element.music,
       });
     }
-    //排序
     tempStageList.sort((a, b) => {
       return a.startAt - b.startAt;
     });
@@ -133,9 +141,8 @@ export class EventStage {
    * @returns 格式化后的文本。
    */
   getStageTypeByTime(startAt: number, endAt: number): string {
-    //根据时间获取当前stage类型
     if (!this.isInitFull) {
-      return;
+      return BangDreamEventStageType.unknown;
     }
     const stage = this.stageType.find((x) => {
       const startTime = parseInt(x.startAt);
diff --git a/src/qqbot/plugins/bangDream/tsugu/models/model-utils.ts b/src/qqbot/plugins/bangDream/tsugu/models/model-utils.ts
index a003530..d6b22f8 100644
--- a/src/qqbot/plugins/bangDream/tsugu/models/model-utils.ts
+++ b/src/qqbot/plugins/bangDream/tsugu/models/model-utils.ts
@@ -48,20 +48,14 @@ export async function writeJSON(filepath: string, data: object) {
  * @param filePath - 本地文件路径。
  * @returns 异步处理结果。
  */
-export async function readExcelFile(filePath: string): Promise<any[]> {
-  // 读取Excel文件
+export async function readExcelFile<
+  T extends Record<string, unknown> = Record<string, unknown>,
+>(filePath: string): Promise<T[]> {
   const workbook = XLSX.readFile(filePath);
 
-  // 获取工作表的名字
   const sheetName = workbook.SheetNames[0];
-
-  // 获取工作表
   const worksheet = workbook.Sheets[sheetName];
-
-  // 将工作表转换为JSON
-  const json = XLSX.utils.sheet_to_json(worksheet);
-
-  return json;
+  return XLSX.utils.sheet_to_json<T>(worksheet);
 }
 
 //将string[]转变为number[]
diff --git a/src/qqbot/plugins/bangDream/tsugu/models/server.ts b/src/qqbot/plugins/bangDream/tsugu/models/server.ts
index d8ce2cb..b1717c8 100644
--- a/src/qqbot/plugins/bangDream/tsugu/models/server.ts
+++ b/src/qqbot/plugins/bangDream/tsugu/models/server.ts
@@ -93,7 +93,7 @@ export async function getIcon(server: Server): Promise<Image> {
  * @param displayedServerList - 允许展示或下载资源的服务器优先级列表，未传入时使用默认值。
  */
 export function getServerByPriority(
-  content: Array<any>,
+  content: Array<unknown>,
   displayedServerList: Server[] = globalDefaultServer,
 ) {
   const serverPriority: Server[] = [
@@ -114,13 +114,8 @@ export function getServerByPriority(
  * @param server - 目标服务器。
  * @returns 判断结果。
  */
-export function isServer(server: any): boolean {
-  if (typeof server == 'number') {
-    server = Server[server];
-  } else {
-    return false;
-  }
-  return Object.keys(Server).includes(server);
+export function isServer(server: unknown): boolean {
+  return typeof server === 'number' && serverList.includes(server);
 }
 
 /**
@@ -129,7 +124,7 @@ export function isServer(server: any): boolean {
  * @param serverList - 服务器列表参数。
  * @returns 判断结果。
  */
-export function isServerList(serverList: Array<any>): boolean {
+export function isServerList(serverList: Array<unknown>): boolean {
   let result = true;
   for (let i = 0; i < serverList.length; i++) {
     const element = serverList[i];
diff --git a/src/qqbot/plugins/bangDream/tsugu/models/song-resource-repository.ts b/src/qqbot/plugins/bangDream/tsugu/models/song-resource-repository.ts
index 3ec6f47..05b50c4 100644
--- a/src/qqbot/plugins/bangDream/tsugu/models/song-resource-repository.ts
+++ b/src/qqbot/plugins/bangDream/tsugu/models/song-resource-repository.ts
@@ -9,6 +9,7 @@ import {
   getServerByPriority,
   Server,
 } from '@/qqbot/plugins/bangDream/tsugu/models/server';
+import type { BestdoriNote } from '@/qqbot/plugins/bangDream/tsugu/render-blocks/song-chart-preview-spec';
 
 export interface SongJacketSource {
   jacketImage: Array<string>;
@@ -50,8 +51,8 @@ export class SongResourceRepository {
    * @param songId - 歌曲 ID。
    * @param difficultyId - 难度 ID。
    */
-  async getChart(songId: number, difficultyId: number): Promise<object> {
-    return await this.provider.getJson<object>(
+  async getChart(songId: number, difficultyId: number): Promise<BestdoriNote[]> {
+    return await this.provider.getJson<BestdoriNote[]>(
       `/api/charts/${songId}/${difficultyNameById[difficultyId]}.json`,
     );
   }
diff --git a/src/qqbot/plugins/bangDream/tsugu/models/song.ts b/src/qqbot/plugins/bangDream/tsugu/models/song.ts
index 5e079c7..d896c2f 100644
--- a/src/qqbot/plugins/bangDream/tsugu/models/song.ts
+++ b/src/qqbot/plugins/bangDream/tsugu/models/song.ts
@@ -9,6 +9,7 @@ import {
   BANGDREAM_SONG_TAG_NAME,
 } from '@/qqbot/plugins/bangDream/tsugu/models/bangdream-constants';
 import { songResourceRepository } from '@/qqbot/plugins/bangDream/tsugu/models/song-resource-repository';
+import type { BestdoriNote } from '@/qqbot/plugins/bangDream/tsugu/render-blocks/song-chart-preview-spec';
 
 export const difficultyName: Record<number, string> =
   BANGDREAM_DIFFICULTY_NAME_BY_ID;
@@ -248,7 +249,7 @@ export class Song {
    * @param difficultyId - 难度ID参数。
    * @returns 异步处理结果。
    */
-  async getSongChart(difficultyId: number): Promise<object> {
+  async getSongChart(difficultyId: number): Promise<BestdoriNote[]> {
     return await songResourceRepository.getChart(this.songId, difficultyId);
   }
 
@@ -272,7 +273,7 @@ export class Song {
    * @param difficultyId - 难度ID参数。
    * @param scoreUpMaxValue - 分数UpMax值参数，未传入时使用默认值。
    * @param skillDuration - 技能Duration参数，未传入时使用默认值。
-   * @param accruacy - accruacy参数，未传入时使用默认值。
+   * @param accuracy - accuracy参数，未传入时使用默认值。
    * @returns 计算后的数值。
    */
   calcMeta(
@@ -280,7 +281,7 @@ export class Song {
     difficultyId: number,
     scoreUpMaxValue: number = 100,
     skillDuration: number = 7,
-    accruacy: number = 100,
+    accuracy: number = 100,
   ): number {
     if (this.hasMeta == false) {
       return 0;
@@ -298,7 +299,7 @@ export class Song {
           this.meta[difficultyId][skillDuration][1];
     }
     const scoreParameter =
-      skillParameter * ((1.1 * accruacy) / 100 + 0.8 * (1 - accruacy / 100));
+      skillParameter * ((1.1 * accuracy) / 100 + 0.8 * (1 - accuracy / 100));
     return scoreParameter;
   }
 }
diff --git a/src/qqbot/plugins/bangDream/tsugu/render-blocks/cutoff-chart.ts b/src/qqbot/plugins/bangDream/tsugu/render-blocks/cutoff-chart.ts
index e85c407..bb6dba3 100644
--- a/src/qqbot/plugins/bangDream/tsugu/render-blocks/cutoff-chart.ts
+++ b/src/qqbot/plugins/bangDream/tsugu/render-blocks/cutoff-chart.ts
@@ -12,6 +12,10 @@ import {
   BANGDREAM_CUTOFF_CHART_SPEC,
   stripCutoffChartLabelTags,
 } from '@/qqbot/plugins/bangDream/tsugu/render-blocks/cutoff-chart-spec';
+import type {
+  TimelineChartDataset,
+  TimelineChartPoint,
+} from '@/qqbot/plugins/bangDream/tsugu/render-blocks/timeline-chart-spec';
 
 /**
  * 在图片布局层中绘制档线谱面。
@@ -26,7 +30,7 @@ export async function drawCutoffChart(
   server: Server = Server['jp'],
 ) {
   //setStartToZero:是否将开始时间设置为0
-  const datasets = [];
+  const datasets: TimelineChartDataset[] = [];
   const time = new Date().getTime();
   if (cutoffList.length == 0) {
     return new Canvas(
@@ -44,9 +48,9 @@ export async function drawCutoffChart(
     const cutoff = cutoffList[i];
     const tempEvent = new Event(cutoff.eventId);
 
-    let lableName: string;
+    let labelName: string;
     if (setStartToZero) {
-      lableName = `[${tempEvent.eventId}] ${tempEvent.eventName[server]} T${cutoff.tier}`;
+      labelName = `[${tempEvent.eventId}] ${tempEvent.eventName[server]} T${cutoff.tier}`;
       list.push(
         drawList({
           content: [
@@ -59,7 +63,7 @@ export async function drawCutoffChart(
         }),
       );
     } else {
-      lableName = `T${cutoff.tier}`;
+      labelName = `T${cutoff.tier}`;
       list.push(
         drawList({
           content: [
@@ -73,7 +77,7 @@ export async function drawCutoffChart(
       );
     }
     datasets.push({
-      label: lableName,
+      label: labelName,
       data: cutoff.getChartData(setStartToZero),
       borderWidth: BANGDREAM_CUTOFF_CHART_SPEC.lineDataset.borderWidth,
       borderColor: [tempColor.getRGBA(1)],
@@ -89,39 +93,39 @@ export async function drawCutoffChart(
 
     if (cutoff.status == BangDreamEventStatus.inProgress) {
       if (cutoff.predictEP != null && cutoff.predictEP != 0) {
-        let data = [];
+        let data: TimelineChartPoint[] = [];
         const history = cutoff.getPredictionHistory();
         if (history.length > 0) {
           if (setStartToZero) {
             for (const p of history) {
-              data.push({ x: new Date(p.time - cutoff.startAt), y: p.ep });
+              data.push({ x: p.time - cutoff.startAt, y: p.ep });
             }
             data.push({
-              x: new Date(cutoff.endAt - cutoff.startAt),
+              x: cutoff.endAt - cutoff.startAt,
               y: history[history.length - 1].ep,
             });
           } else {
             for (const p of history) {
-              data.push({ x: new Date(p.time), y: p.ep });
+              data.push({ x: p.time, y: p.ep });
             }
             data.push({
-              x: new Date(cutoff.endAt),
+              x: cutoff.endAt,
               y: history[history.length - 1].ep,
             });
           }
         } else {
           if (setStartToZero) {
             data = [
-              { x: new Date(0), y: cutoff.predictEP },
+              { x: 0, y: cutoff.predictEP },
               {
-                x: new Date(cutoff.endAt - cutoff.startAt),
+                x: cutoff.endAt - cutoff.startAt,
                 y: cutoff.predictEP,
               },
             ];
           } else {
             data = [
-              { x: new Date(cutoff.startAt), y: cutoff.predictEP },
-              { x: new Date(cutoff.endAt), y: cutoff.predictEP },
+              { x: cutoff.startAt, y: cutoff.predictEP },
+              { x: cutoff.endAt, y: cutoff.predictEP },
             ];
           }
         }
@@ -140,7 +144,9 @@ export async function drawCutoffChart(
           ],
           data: data,
           borderWidth: BANGDREAM_CUTOFF_CHART_SPEC.lineDataset.borderWidth,
-          borderDash: BANGDREAM_CUTOFF_CHART_SPEC.lineDataset.predictionDash,
+          borderDash: [
+            ...BANGDREAM_CUTOFF_CHART_SPEC.lineDataset.predictionDash,
+          ],
           fill: false,
           pointRadius:
             BANGDREAM_CUTOFF_CHART_SPEC.lineDataset.predictionPointRadius,
@@ -157,7 +163,7 @@ export async function drawCutoffChart(
         label: BANGDREAM_CUTOFF_CHART_SPEC.currentTimeDataset.label,
         borderColor: [tempColor.getRGBA(1)],
         backgroundColor: [tempColor.getRGBA(1)],
-        data: [{ x: new Date(time), y: 0 }],
+        data: [{ x: time, y: 0 }],
         fill: false,
         pointRadius: BANGDREAM_CUTOFF_CHART_SPEC.currentTimeDataset.pointRadius,
         pointHoverRadius:
@@ -204,27 +210,27 @@ export async function drawCutoffChart(
 /**
  * 在图片布局层中绘制档线活动排名谱面。
  *
- * @param CutoffEventTop - 档线活动排名参数。
+ * @param cutoffEventTop - 档线活动排名参数。
  * @param setStartToZero - setStartToZero参数，未传入时使用默认值。
  */
 export async function drawCutoffEventTopChart(
-  CutoffEventTop: CutoffEventTop,
+  cutoffEventTop: CutoffEventTop,
   setStartToZero = false,
 ) {
-  const datasets = [];
-  if (CutoffEventTop == undefined) {
+  const datasets: TimelineChartDataset[] = [];
+  if (cutoffEventTop == undefined) {
     return new Canvas(
       BANGDREAM_CUTOFF_CHART_SPEC.emptyCanvas.width,
       BANGDREAM_CUTOFF_CHART_SPEC.emptyCanvas.height,
     );
   }
-  const allData = CutoffEventTop.getChartData();
+  const allData = cutoffEventTop.getChartData();
   let colorNumber = 0;
   for (const key in allData) {
     const tempColor = getPresetColor(colorNumber);
     datasets.push({
       label: stripCutoffChartLabelTags(
-        CutoffEventTop.getUserNameById(Number(key)),
+        cutoffEventTop.getUserNameById(Number(key)),
       ),
       data: allData[key],
       borderWidth: BANGDREAM_CUTOFF_CHART_SPEC.eventTopDataset.borderWidth,
@@ -249,8 +255,8 @@ export async function drawCutoffEventTopChart(
   return await drawTimeLineChart(
     {
       data,
-      start: new Date(CutoffEventTop.startAt),
-      end: new Date(CutoffEventTop.endAt),
+      start: new Date(cutoffEventTop.startAt),
+      end: new Date(cutoffEventTop.endAt),
       setStartToZero,
     },
     true,
diff --git a/src/qqbot/plugins/bangDream/tsugu/render-blocks/song-chart-preview.ts b/src/qqbot/plugins/bangDream/tsugu/render-blocks/song-chart-preview.ts
index 47d0b1f..4f43034 100644
--- a/src/qqbot/plugins/bangDream/tsugu/render-blocks/song-chart-preview.ts
+++ b/src/qqbot/plugins/bangDream/tsugu/render-blocks/song-chart-preview.ts
@@ -1,4 +1,5 @@
 import { Canvas, Image, loadImage } from 'skia-canvas';
+import type { CanvasRenderingContext2D } from 'skia-canvas';
 import { loadImageFromPath } from '@/qqbot/plugins/bangDream/tsugu/canvas/image-utils';
 import {
   BangDreamLocalAssetKey,
@@ -96,7 +97,7 @@ async function loadCoverImage(cover: string | Buffer): Promise<Image> {
  * @param y - 纵向绘制坐标。
  */
 function setAdaptiveTextBaseline(
-  ctx: any,
+  ctx: CanvasRenderingContext2D,
   layout: PreviewLayout,
   fontSize: number,
   y: number,
@@ -135,7 +136,7 @@ function getTimePosition(layout: PreviewLayout, time: number) {
  * @param coverImg - coverImg参数。
  */
 function drawBaseInfo(
-  ctx: any,
+  ctx: CanvasRenderingContext2D,
   layout: PreviewLayout,
   payload: BestdoriPreviewPayload,
   coverImg: Image,
@@ -218,7 +219,7 @@ function drawBaseInfo(
  * @param ctx - 画布绘图上下文。
  * @param layout - 布局参数。
  */
-function drawTracks(ctx: any, layout: PreviewLayout): void {
+function drawTracks(ctx: CanvasRenderingContext2D, layout: PreviewLayout): void {
   for (let i = 0; i < layout.colCount; i++) {
     ctx.save();
     const x =
@@ -259,7 +260,7 @@ function drawTracks(ctx: any, layout: PreviewLayout): void {
  * @param notes - 谱面音符列表。
  */
 function drawBeatLines(
-  ctx: any,
+  ctx: CanvasRenderingContext2D,
   layout: PreviewLayout,
   notes: PreviewNote[],
 ): void {
@@ -309,7 +310,10 @@ function drawBeatLines(
  * @param ctx - 画布绘图上下文。
  * @param layout - 布局参数。
  */
-function drawTimeline(ctx: any, layout: PreviewLayout): void {
+function drawTimeline(
+  ctx: CanvasRenderingContext2D,
+  layout: PreviewLayout,
+): void {
   ctx.save();
   ctx.font = `18px "${BANGDREAM_RENDER_THEME.font.chart}"`;
   ctx.fillStyle = BANGDREAM_RENDER_THEME.color.chartText;
@@ -330,7 +334,7 @@ function drawTimeline(ctx: any, layout: PreviewLayout): void {
  * @param notes - 谱面音符列表。
  */
 function drawCountAndBpmLines(
-  ctx: any,
+  ctx: CanvasRenderingContext2D,
   layout: PreviewLayout,
   notes: PreviewNote[],
 ): void {
@@ -376,7 +380,7 @@ function drawCountAndBpmLines(
  * @param note - 谱面音符。
  */
 function drawTapNote(
-  ctx: any,
+  ctx: CanvasRenderingContext2D,
   layout: PreviewLayout,
   noteImages: Record<string, Image>,
   note: PreviewNote,
@@ -417,7 +421,7 @@ function drawTapNote(
  * @param note - 谱面音符。
  */
 function drawDirectionalNote(
-  ctx: any,
+  ctx: CanvasRenderingContext2D,
   layout: PreviewLayout,
   noteImages: Record<string, Image>,
   note: PreviewNote,
@@ -469,7 +473,7 @@ function drawDirectionalNote(
  * @param note - 谱面音符。
  */
 function drawSimNote(
-  ctx: any,
+  ctx: CanvasRenderingContext2D,
   layout: PreviewLayout,
   noteImages: Record<string, Image>,
   note: PreviewNote,
@@ -498,7 +502,11 @@ function drawSimNote(
  * @param layout - 布局参数。
  * @param note - 谱面音符。
  */
-function drawBarNote(ctx: any, layout: PreviewLayout, note: PreviewNote): void {
+function drawBarNote(
+  ctx: CanvasRenderingContext2D,
+  layout: PreviewLayout,
+  note: PreviewNote,
+): void {
   const time = note.time as number[];
   const lane = note.lane as number[];
   const startCol = Math.floor(time[0] / layout.secondsPerCol);
@@ -543,7 +551,7 @@ function drawBarNote(ctx: any, layout: PreviewLayout, note: PreviewNote): void {
  * @param notes - 谱面音符列表。
  */
 function drawNotes(
-  ctx: any,
+  ctx: CanvasRenderingContext2D,
   layout: PreviewLayout,
   noteImages: Record<string, Image>,
   notes: PreviewNote[],
diff --git a/src/qqbot/plugins/bangDream/tsugu/render-blocks/timeline-chart-spec.ts b/src/qqbot/plugins/bangDream/tsugu/render-blocks/timeline-chart-spec.ts
index 6568172..d0f3e83 100644
--- a/src/qqbot/plugins/bangDream/tsugu/render-blocks/timeline-chart-spec.ts
+++ b/src/qqbot/plugins/bangDream/tsugu/render-blocks/timeline-chart-spec.ts
@@ -1,3 +1,5 @@
+import type { ChartDataset } from 'chart.js';
+
 export const BANGDREAM_TIMELINE_CHART_SPEC = {
   animation: false,
   canvas: {
@@ -18,14 +20,19 @@ export const BANGDREAM_TIMELINE_CHART_SPEC = {
   },
 } as const;
 
+export interface TimelineChartPoint {
+  x: number;
+  y: number;
+}
+
+export type TimelineChartDataset = ChartDataset<'line', TimelineChartPoint[]>;
+
 /**
  * 计算时间线图表的原始 Y 轴最大值。
  *
  * @param datasets - Chart.js 数据集。
  */
-export function getTimelineRawYMax(
-  datasets: Array<{ data: Array<{ y: number }> }>,
-) {
+export function getTimelineRawYMax(datasets: TimelineChartDataset[]) {
   return Math.max(
     ...datasets.map((dataset) => Math.max(...dataset.data.map((pt) => pt.y))),
   );
diff --git a/src/qqbot/plugins/bangDream/tsugu/render-blocks/timeline-chart.ts b/src/qqbot/plugins/bangDream/tsugu/render-blocks/timeline-chart.ts
index b03e1c4..ec0f8cd 100644
--- a/src/qqbot/plugins/bangDream/tsugu/render-blocks/timeline-chart.ts
+++ b/src/qqbot/plugins/bangDream/tsugu/render-blocks/timeline-chart.ts
@@ -1,4 +1,5 @@
 import { Chart, registerables } from 'chart.js';
+import type { ChartConfiguration, ChartItem } from 'chart.js';
 import { Canvas, FontLibrary, loadImage } from 'skia-canvas';
 import 'chartjs-adapter-moment';
 import { assetsRootPath } from '@/qqbot/plugins/bangDream/tsugu/runtime/config';
@@ -7,6 +8,8 @@ import {
   BANGDREAM_TIMELINE_CHART_SPEC,
   getTimelineDisplayYMax,
   getTimelineRawYMax,
+  type TimelineChartDataset,
+  type TimelineChartPoint,
 } from '@/qqbot/plugins/bangDream/tsugu/render-blocks/timeline-chart-spec';
 
 // 2. 注册 Chart.js 所有组件
@@ -19,12 +22,12 @@ Chart.register(...registerables);
 FontLibrary.use('old', [`${assetsRootPath}/Fonts/old.ttf`]);
 
 // 5. 定义参数接口
-interface drawTimeLineChartOptions {
+interface DrawTimeLineChartOptions {
   start: Date;
   end: Date;
   setStartToZero?: boolean;
   data: {
-    datasets: any[];
+    datasets: TimelineChartDataset[];
   };
 }
 
@@ -36,7 +39,7 @@ interface drawTimeLineChartOptions {
  * @param displayLabel - 展示Label参数，未传入时使用默认值。
  */
 export async function drawTimeLineChart(
-  { start, end, setStartToZero = false, data }: drawTimeLineChartOptions,
+  { start, end, setStartToZero = false, data }: DrawTimeLineChartOptions,
   displayLabel = false,
 ) {
   const width = BANGDREAM_TIMELINE_CHART_SPEC.canvas.width;
@@ -63,12 +66,12 @@ export async function drawTimeLineChart(
     },
     scales: {
       x: {
-        type: 'time',
+        type: 'time' as const,
         time: {
           unit: BANGDREAM_TIMELINE_CHART_SPEC.xAxis.unit,
         },
-        min: start,
-        max: end,
+        min: start.getTime(),
+        max: end.getTime(),
         display: !setStartToZero,
       },
       y: {
@@ -79,7 +82,7 @@ export async function drawTimeLineChart(
   };
 
   // 10. Chart.js 配置
-  const config = {
+  const config: ChartConfiguration<'line', TimelineChartPoint[]> = {
     type: 'line' as const,
     data,
     options: {
@@ -91,7 +94,7 @@ export async function drawTimeLineChart(
 
   try {
     // 11. 生成 Chart.js 图表
-    new Chart(ctx as any, config as any);
+    new Chart(ctx as unknown as ChartItem, config);
 
     // 12. 返回 skia-canvas 的 Image 对象
     return canvas;
diff --git a/test/qqbot/plugins/bangDream/tsugu/chart-spec.spec.ts b/test/qqbot/plugins/bangDream/tsugu/chart-spec.spec.ts
index 94f73ce..dbccdd7 100644
--- a/test/qqbot/plugins/bangDream/tsugu/chart-spec.spec.ts
+++ b/test/qqbot/plugins/bangDream/tsugu/chart-spec.spec.ts
@@ -16,8 +16,8 @@ describe('BangDream chart specs', () => {
     });
     expect(
       getTimelineRawYMax([
-        { data: [{ y: 100 }, { y: 300 }] },
-        { data: [{ y: 200 }] },
+        { data: [{ x: 0, y: 100 }, { x: 1, y: 300 }] },
+        { data: [{ x: 0, y: 200 }] },
       ]),
     ).toBe(300);
     expect(getTimelineDisplayYMax(300)).toBeCloseTo(1430);