diff --git a/.gitattributes b/.gitattributes
index 187387ba..631c2af3 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -8,6 +8,13 @@
 *.mjs text eol=lf
 *.js  text eol=lf
 *.py  text eol=lf
+# Text the tests read and match line by line (CSS rules, HTML, data, docs): LF everywhere, so a Windows checkout
+# (core.autocrlf=true) runs `node --test` exactly like Linux and macOS.
+*.css  text eol=lf
+*.html text eol=lf
+*.json text eol=lf
+*.md   text eol=lf
+*.yml  text eol=lf
 # binary assets
 *.png binary
 *.jpg binary
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 57b62cfd..ec0ab57d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -31,9 +31,9 @@ jobs:
       RENDER_E2E: '0'
       NO_COLOR: '1'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@v7
         with:
           node-version: ${{ matrix.node }}
           cache: npm
@@ -46,8 +46,6 @@ jobs:
 
       - name: Unit & integration tests
         run: node --test
-        # Linux is the reference platform; Windows results are informative until the suite is proven there.
-        continue-on-error: ${{ matrix.os == 'windows-latest' }}
 
       - name: Server smoke test (boot, /healthz, index.html, doctor)
         shell: bash
diff --git a/docs/DESIGN.md b/docs/DESIGN.md
index c802f6c7..81526c32 100644
--- a/docs/DESIGN.md
+++ b/docs/DESIGN.md
@@ -27,7 +27,7 @@ Out of scope v1: matchmaking queue, training/tutorial, DIY (甄选) slots (the 4
 
 ## 1. Tech stack
 
-- **Node.js ≥ 18** (tested on 22), ESM (`"type": "module"`), single dependency `ws@8`. No bundler, no TypeScript. JSDoc types where helpful.
+- **Node.js ≥ 22** (CI: 22 and 24), ESM (`"type": "module"`), single dependency `ws@8`. No bundler, no TypeScript. JSDoc types where helpful.
 - **Server-authoritative simulation.** Clients send *intents*; the server validates, mutates state and pushes state/snapshots.
 - **Client:** static files, native ES modules. Vendored libs in `public/vendor/`: `pixi.min.js` (PixiJS **7.4.2** UMD, global `PIXI`), `pixi-spine.js` (**4.0.6** UMD, `PIXI.spine`), `preact.module.js` + `hooks.module.js` + `htm.module.js` (Preact 10 + htm, no build step). No CDN at runtime (LAN play must work offline).
 - **Shared code** in `shared/` is imported by both server and browser (pure ESM, no Node APIs).
diff --git a/package-lock.json b/package-lock.json
index db54dded..b3f5f491 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,7 +21,7 @@
         "puppeteer-core": "^23.11.1"
       },
       "engines": {
-        "node": ">=18"
+        "node": ">=22"
       }
     },
     "node_modules/@pixi-spine/base": {
diff --git a/package.json b/package.json
index cc7454b1..8ee16974 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "launch": "node scripts/launch.mjs"
   },
   "engines": {
-    "node": ">=18"
+    "node": ">=22"
   },
   "dependencies": {
     "htm": "^3.1.1",
diff --git a/scripts/install-service-windows.ps1 b/scripts/install-service-windows.ps1
index 14fa8434..6b11443e 100644
--- a/scripts/install-service-windows.ps1
+++ b/scripts/install-service-windows.ps1
@@ -118,7 +118,7 @@ try {
   if (-not $nodeCmd) { throw '未找到 Node.js：请先安装（winget install OpenJS.NodeJS.LTS），然后重新打开 PowerShell。' }
   $nodeExe = $nodeCmd.Source
   $major = [int](((& $nodeExe -v) -replace '^v', '').Split('.')[0])
-  if ($major -lt 18) { throw "Node.js 版本太旧（需要 18+）：$(& $nodeExe -v)" }
+  if ($major -lt 22) { throw "Node.js 版本太旧（需要 22+）：$(& $nodeExe -v)" }
   if ($nodeExe -like "$env:USERPROFILE*") {
     Write-Host "注意：node.exe 位于用户目录（$nodeExe，nvm/便携版？）。SYSTEM 账户一般也能运行它；若服务起不来，请改用 winget / 官网安装包安装的 Node.js。" -ForegroundColor Yellow
   }
diff --git a/scripts/launch.mjs b/scripts/launch.mjs
index 012d5bce..ab675e11 100755
--- a/scripts/launch.mjs
+++ b/scripts/launch.mjs
@@ -20,8 +20,8 @@ import fs from 'node:fs';
 const ROOT = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..');
 const IS_WIN = process.platform === 'win32';
 
-if (Number(process.versions.node.split('.')[0]) < 18) {
-  console.error(`Node.js ${process.versions.node} 太旧，需要 18 或更高（推荐 22 LTS）：https://nodejs.org/zh-cn/download`);
+if (Number(process.versions.node.split('.')[0]) < 22) {
+  console.error(`Node.js ${process.versions.node} 太旧，需要 22 或更高（22 / 24 LTS）：https://nodejs.org/zh-cn/download`);
   process.exit(1);
 }
 
diff --git a/scripts/start-windows.bat b/scripts/start-windows.bat
index fbbc935a..3aa4521b 100644
--- a/scripts/start-windows.bat
+++ b/scripts/start-windows.bat
@@ -10,7 +10,7 @@ cd /d "%~dp0.."
 
 where node >nul 2>nul
 if errorlevel 1 goto :nonode
-node -e "process.exit(Number(process.versions.node.split('.')[0])>=18?0:1)"
+node -e "process.exit(Number(process.versions.node.split('.')[0])>=22?0:1)"
 if errorlevel 1 goto :oldnode
 
 if not exist "node_modules\ws\package.json" (
@@ -25,7 +25,7 @@ exit /b 0
 
 :nonode
 echo.
-echo 未找到 Node.js（需要 18 或更高，推荐 22 LTS）。Node.js not found.
+echo 未找到 Node.js（需要 22 或更高，22 / 24 LTS）。Node.js not found.
 echo.
 echo   方法一：在 PowerShell 或命令提示符中运行
 echo       winget install OpenJS.NodeJS.LTS
@@ -38,7 +38,7 @@ exit /b 1
 
 :oldnode
 echo.
-for /f "delims=" %%v in ('node -v') do echo 当前 Node.js 版本 %%v 太旧，需要 18 或更高（推荐 22 LTS）。
+for /f "delims=" %%v in ('node -v') do echo 当前 Node.js 版本 %%v 太旧，需要 22 或更高（22 / 24 LTS）。
 echo   升级：winget upgrade OpenJS.NodeJS.LTS   或   https://nodejs.org/zh-cn/download
 echo.
 pause
diff --git a/scripts/start-windows.ps1 b/scripts/start-windows.ps1
index 8511a202..3ab1c44a 100644
--- a/scripts/start-windows.ps1
+++ b/scripts/start-windows.ps1
@@ -31,7 +31,7 @@ function Test-Node {
 
 $node = Test-Node
 if (-not $node) {
-  Write-Host '未找到 Node.js（需要 18 或更高，推荐 22 LTS）。' -ForegroundColor Yellow
+  Write-Host '未找到 Node.js（需要 22 或更高，22 / 24 LTS）。' -ForegroundColor Yellow
   $winget = Get-Command winget -ErrorAction SilentlyContinue
   if ($winget) {
     Write-Host '可以用 Windows 自带的 winget 安装：  winget install OpenJS.NodeJS.LTS'
@@ -49,8 +49,8 @@ if (-not $node) {
     Pause-Exit 1
   }
 }
-if ($node.Major -lt 18) {
-  Write-Host "Node.js $($node.Version) 太旧，需要 18 或更高：winget upgrade OpenJS.NodeJS.LTS  或  https://nodejs.org/zh-cn/download" -ForegroundColor Red
+if ($node.Major -lt 22) {
+  Write-Host "Node.js $($node.Version) 太旧，需要 22 或更高：winget upgrade OpenJS.NodeJS.LTS  或  https://nodejs.org/zh-cn/download" -ForegroundColor Red
   Pause-Exit 1
 }
 
diff --git a/scripts/start.sh b/scripts/start.sh
index d78bc8a7..6ad1a5ba 100755
--- a/scripts/start.sh
+++ b/scripts/start.sh
@@ -1,12 +1,12 @@
 #!/usr/bin/env bash
 # 卫戍协议：盟约 · macOS / Linux start script. Docs: docs/DEPLOY.md
 #   scripts/start.sh [--port 3001] [--no-open] [--no-local] [--no-assets] …   (arguments go to scripts/launch.mjs)
-# Checks Node.js ≥ 18, runs `npm ci` on the first run, then scripts/launch.mjs (tools/setup.mjs → server → browser).
+# Checks Node.js ≥ 22, runs `npm ci` on the first run, then scripts/launch.mjs (tools/setup.mjs → server → browser).
 set -euo pipefail
 cd "$(dirname "$0")/.."
 
 if ! command -v node >/dev/null 2>&1; then
-  echo "未找到 Node.js（需要 18 或更高，推荐 22 LTS）。Node.js not found."
+  echo "未找到 Node.js（需要 22 或更高，22 / 24 LTS）。Node.js not found."
   if [ "$(uname -s)" = "Darwin" ]; then
     echo "  安装：brew install node@22   或   https://nodejs.org/zh-cn/download"
   else
@@ -14,8 +14,8 @@ if ! command -v node >/dev/null 2>&1; then
   fi
   exit 1
 fi
-if ! node -e "process.exit(Number(process.versions.node.split('.')[0])>=18?0:1)"; then
-  echo "Node.js $(node -v) 太旧，需要 18 或更高（推荐 22 LTS）：https://nodejs.org/zh-cn/download"
+if ! node -e "process.exit(Number(process.versions.node.split('.')[0])>=22?0:1)"; then
+  echo "Node.js $(node -v) 太旧，需要 22 或更高（22 / 24 LTS）：https://nodejs.org/zh-cn/download"
   exit 1
 fi
 
diff --git a/tools/doctor.mjs b/tools/doctor.mjs
index 843ef89d..677a9d69 100755
--- a/tools/doctor.mjs
+++ b/tools/doctor.mjs
@@ -164,7 +164,7 @@ async function main() {
 
   section('运行环境');
   const node = checkNode();
-  row(node.ok ? (node.recommended ? 'ok' : 'warn') : 'err', 'Node.js', `v${node.version}` + (node.ok ? (node.recommended ? '' : '（推荐 22 LTS）') : `（需要 ≥ ${MIN_NODE}：https://nodejs.org/zh-cn/download）`));
+  row(node.ok ? (node.recommended ? 'ok' : 'warn') : 'err', 'Node.js', `v${node.version}` + (node.ok ? (node.recommended ? '' : '（推荐 22 / 24 LTS）') : `（需要 ≥ ${MIN_NODE}：https://nodejs.org/zh-cn/download）`));
   const npmV = tool(IS_WIN ? 'npm.cmd' : 'npm', ['--version']);
   row(npmV ? 'ok' : 'warn', 'npm', npmV ? `v${npmV}` : '未找到（安装 Node.js 时会自带）');
 
diff --git a/tools/setup.mjs b/tools/setup.mjs
index 3c485846..b784fd50 100755
--- a/tools/setup.mjs
+++ b/tools/setup.mjs
@@ -4,7 +4,7 @@
 //   node tools/setup.mjs [options]
 //
 // Steps (each one is skipped when already done, so re-running is cheap — the start scripts run it on every start):
-//   1. Node.js ≥ 18 check (clear message + download link otherwise).
+//   1. Node.js ≥ 22 check (clear message + download link otherwise).
 //   2. Dependencies: `npm ci` (falls back to `npm install`) when node_modules is missing or incomplete.
 //   3. Client libraries in public/vendor (tools/vendor.mjs) when any is missing.
 //   4. Game data (data/*.json, committed) present and parseable.
@@ -37,7 +37,7 @@ import { spawnSync } from 'node:child_process';
 import { fileURLToPath } from 'node:url';
 
 export const ROOT = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..');
-export const MIN_NODE = 18;
+export const MIN_NODE = 22;
 export const IS_WIN = process.platform === 'win32';
 export const IS_MAC = process.platform === 'darwin';
 const NODE_URL = 'https://nodejs.org/zh-cn/download';
@@ -133,7 +133,7 @@ async function ask(question, def, timeoutMs = 60000) {
 /** Node.js version check. */
 export function checkNode() {
   const major = nodeMajor();
-  return { ok: major >= MIN_NODE, version: process.versions.node, major, recommended: major >= 20 };
+  return { ok: major >= MIN_NODE, version: process.versions.node, major, recommended: major >= MIN_NODE };
 }
 
 /** Runtime dependencies installed? */
@@ -353,11 +353,11 @@ async function main() {
   // 1. Node
   const node = checkNode();
   if (!node.ok) {
-    log(`${mark.err} Node.js ${node.version} 太旧：需要 ${MIN_NODE} 或更高（推荐 22 LTS）。`);
+    log(`${mark.err} Node.js ${node.version} 太旧：需要 ${MIN_NODE} 或更高（22 / 24 LTS）。`);
     log(`  下载：${NODE_URL}` + (IS_WIN ? '   或在终端运行：winget install OpenJS.NodeJS.LTS' : IS_MAC ? '   或：brew install node@22' : ''));
     return 1;
   }
-  add('ok', 'Node.js', `v${node.version}${node.recommended ? '' : '（可用；推荐升级到 22 LTS）'}`);
+  add('ok', 'Node.js', `v${node.version}${node.recommended ? '' : '（可用；推荐 22 / 24 LTS）'}`);
 
   // 2. npm dependencies
   let deps = checkDeps();