diff --git a/.gitignore b/.gitignore
index 56d7dc2..d59b8ba 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,5 @@ public
 themes/hugo-book/**
 resources/_gen
 *.log
-assets/items/*.png
\ No newline at end of file
+assets/items/*.png
+__pycache__/
diff --git a/Makefile b/Makefile
index 741bb61..2eea786 100644
--- a/Makefile
+++ b/Makefile
@@ -1,23 +1,18 @@
-# SFCraft 文档 · 构建 / 开发入口 (跨平台)
+# SFCraft 文档 · 构建 / 开发入口 (跨平台, 脚本为 Python 3)
 #
-# Linux / macOS:   make build / make dev / make sync
-# Windows(有 make 时): 同样可用, 自动调用 PowerShell 脚本
+#   make build / make dev / make sync / make help
 #
 # 可附加 hugo 参数: make dev HUGO_ARGS="--port 1314"
+# 可指定解释器: make PY=python3 build
 
 .PHONY: help sync build dev
 
 HUGO_ARGS ?=
 
 ifeq ($(OS),Windows_NT)
-  PS := powershell -NoProfile -ExecutionPolicy Bypass -File
-  BUILD_CMD := $(PS) scripts/build.ps1
-  DEV_CMD   := $(PS) scripts/dev.ps1
-  SYNC_CMD  := $(PS) scripts/sync-items.ps1
+  PY ?= python
 else
-  BUILD_CMD := ./scripts/build.sh
-  DEV_CMD   := ./scripts/dev.sh
-  SYNC_CMD  := ./scripts/sync-items.sh
+  PY ?= python3
 endif
 
 help:
@@ -30,10 +25,10 @@ help:
 	@echo 可附加 hugo 参数: make dev HUGO_ARGS="--port 1314"
 
 sync:
-	$(SYNC_CMD)
+	$(PY) scripts/sync-items.py
 
 build:
-	$(BUILD_CMD) $(HUGO_ARGS)
+	$(PY) scripts/build.py $(HUGO_ARGS)
 
 dev:
-	$(DEV_CMD) $(HUGO_ARGS)
+	$(PY) scripts/dev.py $(HUGO_ARGS)
diff --git a/assets/items/README.md b/assets/items/README.md
index eb92d39..83e420f 100644
--- a/assets/items/README.md
+++ b/assets/items/README.md
@@ -12,7 +12,7 @@
 
 ## 自动同步（推荐）
 
-构建 / 开发时由 `scripts/sync-items.ps1` 自动维护本目录：
+构建 / 开发时由 `scripts/sync-items.py` 自动维护本目录：
 
 - sfcraft 自定义贴图（`amethyst_cauldron_blank`、`exp_totem`、`lunch_box`、`pearl_token` 等）
   从 [sfcraft 仓库](https://github.com/saltedfishclub/sfcraft/tree/rev/26.2/src/main/resources/assets/sfcraft/textures/item)
@@ -20,7 +20,7 @@
 - 原版物品（`diamond`、`stick` 等）在本地缺失时从 Minecraft wiki 自动获取；
 - 手动放入的贴图不会被覆盖；找不到的贴图会报错并列出物品 id，阻止构建 / 开发。
 
-请使用 `scripts\build.ps1` / `scripts\dev.ps1` 而非直接运行 `hugo`，详见 `scripts/README.md`。
+请使用 `python scripts\build.py` / `python scripts\dev.py` 而非直接运行 `hugo`，详见 `scripts/README.md`。
 
 ## 组件用法
 
diff --git a/scripts/README.md b/scripts/README.md
index 7a4bcd8..a809637 100644
--- a/scripts/README.md
+++ b/scripts/README.md
@@ -2,50 +2,50 @@
 
 ## 用途
 
-`sync-items.ps1` 会在构建和开发前自动保证物品贴图齐全:
+`scripts/` 下全部为 Python 3 脚本（无其他语言）:
+
+- `sync-items.py` —— 物品贴图自动同步（核心）;
+- `build.py` —— 同步贴图 + hugo 构建;
+- `dev.py` —— 同步贴图 + hugo 开发服务器。
+
+同步流程:
 
 1. 下载 [sfcraft 仓库](https://github.com/saltedfishclub/sfcraft/tree/rev/26.2/src/main/resources/assets/sfcraft/textures/item) 的
    全部自定义贴图到 `assets/items/`;
-2. 扫描 `content/` 中所有 `crafting` 组件用到的物品 id;
-3. 本地缺失的原版物品从 Minecraft wiki 自动获取(自动挑选最新版本渲染);
+2. 扫描 `content/` 中所有 `crafting` 组件用到的物品 id（支持九格直填与 pattern 别名两种写法）;
+3. 本地缺失的原版物品从 Minecraft wiki 自动获取（自动挑选最新版本渲染）;
 4. 有任何物品无法找到时, 打印缺失清单并以非零码退出, 阻断构建 / 开发启动。
 
 ## 使用
 
-```powershell
-.\scripts\build.ps1            # 同步贴图 + hugo 构建
-.\scripts\dev.ps1              # 同步贴图 + hugo server
-.\scripts\dev.ps1 -NoSync      # 仅启动开发服务器, 不重新同步
-```
-
-若 PowerShell 执行策略阻止脚本, 请用:
+Windows:
 
 ```powershell
-powershell -ExecutionPolicy Bypass -File scripts\dev.ps1
+python scripts\build.py            # 同步贴图 + hugo 构建
+python scripts\dev.py              # 同步贴图 + hugo server
+python scripts\dev.py --no-sync    # 仅启动开发服务器, 不重新同步
+python scripts\sync-items.py -f    # 仅同步贴图(强制刷新 sfcraft 贴图)
 ```
 
-脚本通过 `$env:HUGO` 或 PATH 查找 hugo, 找不到时也会探测 winget 安装位置。
-
-## Linux / macOS 使用
-
-Unix 环境下使用同名的 bash 脚本(同步逻辑为 Python 3 实现, 需要 `python3` 与 `hugo`):
+Linux / macOS:
 
 ```bash
-./scripts/build.sh            # 同步贴图 + hugo 构建
-./scripts/dev.sh              # 同步贴图 + hugo server
-./scripts/dev.sh -NoSync      # 仅启动开发服务器
+python3 scripts/build.py
+python3 scripts/dev.py
+python3 scripts/dev.py --no-sync
 ```
 
-也可以使用 Makefile(Windows / Unix 通用, 自动选择对应脚本):
+也可以用 Makefile（Windows / Unix 通用）:
 
 ```bash
 make build                    # 同步贴图 + hugo 构建
 make dev                      # 同步贴图 + hugo server
 make sync                     # 仅同步贴图
 make dev HUGO_ARGS="--port 1314"
+make PY=python build          # 指定 Python 解释器
 ```
 
-首次使用前请确认脚本有执行权限: `chmod +x scripts/*.sh`。
+脚本按 `$HUGO` 环境变量、PATH、winget 安装目录的顺序查找 hugo。
 
 ## 组件写法
 
@@ -62,7 +62,7 @@ make dev HUGO_ARGS="--port 1314"
 - 原版贴图: 只在本地缺失时下载, **不会覆盖**手动放入 `assets/items/` 的贴图;
 - 物品 id 即 `assets/items/` 下的文件名(不含 `.png`);
 - wiki 命名规则: `<英文名>_JE<版本>[_BE<版本>].png`, 特殊命名(如 `TNT`、`Flint_and_Steel`)
-  由 `sync-items.ps1` / `sync-items.py` 中的变体生成与别名表处理。
+  由 `sync-items.py` 中的变体生成与别名表处理。
 
 ## 网络要求
 
diff --git a/scripts/build.ps1 b/scripts/build.ps1
deleted file mode 100644
index 60b06b5..0000000
--- a/scripts/build.ps1
+++ /dev/null
@@ -1,35 +0,0 @@
-<#
-  SFCraft 文档构建入口: 先同步物品贴图, 再执行 hugo 构建。
-  贴图同步失败(有物品找不到)时终止构建。
-  用法: powershell -ExecutionPolicy Bypass -File scripts\build.ps1 [hugo 参数...]
-#>
-[CmdletBinding()]
-param(
-  [Parameter(ValueFromRemainingArguments = $true)]
-  [string[]]$HugoArgs
-)
-
-$ErrorActionPreference = 'Stop'
-$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
-
-function Get-HugoPath {
-  if ($env:HUGO) { return $env:HUGO }
-  $cmd = Get-Command hugo -ErrorAction SilentlyContinue
-  if ($cmd) { return $cmd.Source }
-  $p = Get-ChildItem -Path (Join-Path $env:LOCALAPPDATA 'Microsoft\WinGet\Packages') -Recurse -Filter hugo.exe -ErrorAction SilentlyContinue |
-       Sort-Object LastWriteTime -Descending | Select-Object -First 1
-  if ($p) { return $p.FullName }
-  throw '未找到 Hugo。请安装 Hugo, 或将 hugo 可执行文件路径写入环境变量 HUGO。'
-}
-
-Write-Host "`n[1/2] 同步物品贴图" -ForegroundColor Cyan
-& (Join-Path $scriptDir 'sync-items.ps1')
-if ($LASTEXITCODE -ne 0) {
-  Write-Host "[构建终止] 物品贴图同步失败, 未执行 hugo 构建。" -ForegroundColor Red
-  exit $LASTEXITCODE
-}
-
-Write-Host "`n[2/2] hugo 构建" -ForegroundColor Cyan
-$hugo = Get-HugoPath
-& $hugo @HugoArgs
-exit $LASTEXITCODE
diff --git a/scripts/build.py b/scripts/build.py
new file mode 100644
index 0000000..79f961b
--- /dev/null
+++ b/scripts/build.py
@@ -0,0 +1,60 @@
+#!/usr/bin/env python3
+"""SFCraft 文档构建入口: 先同步物品贴图, 再执行 hugo 构建。
+
+贴图同步失败(有物品找不到)时终止构建。
+
+用法:
+  python scripts/build.py [hugo 参数...]
+"""
+
+import os
+import subprocess
+import sys
+from pathlib import Path
+
+SCRIPTS = Path(__file__).resolve().parent
+
+
+def find_hugo():
+    """按 HUGO 环境变量、PATH、winget 安装目录依次查找 hugo。"""
+    env = os.environ.get("HUGO")
+    if env and Path(env).is_file():
+        return env
+
+    name = "hugo.exe" if os.name == "nt" else "hugo"
+    for d in os.environ.get("PATH", "").split(os.pathsep):
+        if d:
+            cand = Path(d) / name
+            if cand.is_file():
+                return str(cand)
+
+    local = os.environ.get("LOCALAPPDATA")
+    if local:
+        base = Path(local) / "Microsoft" / "WinGet" / "Packages"
+        if base.is_dir():
+            for p in sorted(base.glob("*/hugo.exe")):
+                return str(p)
+    return None
+
+
+def main():
+    print("\n[1/2] 同步物品贴图")
+    r = subprocess.run([sys.executable, str(SCRIPTS / "sync-items.py")])
+    if r.returncode != 0:
+        print("[构建终止] 物品贴图同步失败, 未执行 hugo 构建。", file=sys.stderr)
+        sys.exit(r.returncode)
+
+    hugo = find_hugo()
+    if not hugo:
+        print(
+            "[错误] 未找到 hugo, 请安装 Hugo、将其加入 PATH, 或设置环境变量 HUGO。",
+            file=sys.stderr,
+        )
+        sys.exit(1)
+
+    print("\n[2/2] hugo 构建")
+    sys.exit(subprocess.run([hugo, *sys.argv[1:]]).returncode)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/scripts/build.sh b/scripts/build.sh
deleted file mode 100755
index 1f62105..0000000
--- a/scripts/build.sh
+++ /dev/null
@@ -1,30 +0,0 @@
-#!/usr/bin/env bash
-# SFCraft 文档构建入口 (Linux / macOS / Unix): 先同步贴图, 再执行 hugo 构建。
-# 贴图同步失败(有物品找不到)时终止构建。
-# 用法: ./scripts/build.sh [hugo 参数...]
-set -euo pipefail
-
-DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-
-echo
-echo "[1/2] 同步物品贴图"
-"$DIR/sync-items.sh"
-
-if ! command -v hugo >/dev/null 2>&1; then
-  HUGO_BIN=""
-  if [ -n "${HUGO:-}" ] && [ -x "$HUGO" ]; then
-    HUGO_BIN="$HUGO"
-  elif [ -n "${LOCALAPPDATA:-}" ]; then
-    HUGO_BIN="$(find "$LOCALAPPDATA/Microsoft/WinGet/Packages" -maxdepth 3 -name hugo.exe 2>/dev/null | head -n 1)"
-  fi
-  if [ -z "$HUGO_BIN" ]; then
-    echo "[错误] 未找到 hugo, 请安装 Hugo、将其加入 PATH, 或设置环境变量 HUGO。" >&2
-    exit 1
-  fi
-else
-  HUGO_BIN="$(command -v hugo)"
-fi
-
-echo
-echo "[2/2] hugo 构建"
-exec "$HUGO_BIN" "$@"
diff --git a/scripts/dev.ps1 b/scripts/dev.ps1
deleted file mode 100644
index 6e0d9ae..0000000
--- a/scripts/dev.ps1
+++ /dev/null
@@ -1,42 +0,0 @@
-<#
-  SFCraft 文档开发服务器入口: 先同步物品贴图, 再启动 hugo server。
-  贴图同步失败(有物品找不到)时终止启动。
-  用法: powershell -ExecutionPolicy Bypass -File scripts\dev.ps1 [-NoSync] [hugo server 参数...]
-#>
-[CmdletBinding()]
-param(
-  [switch]$NoSync,
-  [Parameter(ValueFromRemainingArguments = $true)]
-  [string[]]$HugoArgs
-)
-
-$ErrorActionPreference = 'Stop'
-$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
-
-function Get-HugoPath {
-  if ($env:HUGO) { return $env:HUGO }
-  $cmd = Get-Command hugo -ErrorAction SilentlyContinue
-  if ($cmd) { return $cmd.Source }
-  $p = Get-ChildItem -Path (Join-Path $env:LOCALAPPDATA 'Microsoft\WinGet\Packages') -Recurse -Filter hugo.exe -ErrorAction SilentlyContinue |
-       Sort-Object LastWriteTime -Descending | Select-Object -First 1
-  if ($p) { return $p.FullName }
-  throw '未找到 Hugo。请安装 Hugo, 或将 hugo 可执行文件路径写入环境变量 HUGO。'
-}
-
-if (-not $NoSync) {
-  Write-Host "`n[1/2] 同步物品贴图" -ForegroundColor Cyan
-  & (Join-Path $scriptDir 'sync-items.ps1')
-  if ($LASTEXITCODE -ne 0) {
-    Write-Host "[启动终止] 物品贴图同步失败, 未启动 hugo server。" -ForegroundColor Red
-    exit $LASTEXITCODE
-  }
-} else {
-  Write-Host "[跳过] 已指定 -NoSync, 不执行贴图同步" -ForegroundColor Yellow
-}
-
-Write-Host "`n[2/2] 启动 hugo server" -ForegroundColor Cyan
-$hugo = Get-HugoPath
-$serverArgs = @('server')
-if ($HugoArgs.Count -gt 0) { $serverArgs += $HugoArgs }
-& $hugo @serverArgs
-exit $LASTEXITCODE
diff --git a/scripts/dev.py b/scripts/dev.py
new file mode 100644
index 0000000..fb6a73e
--- /dev/null
+++ b/scripts/dev.py
@@ -0,0 +1,71 @@
+#!/usr/bin/env python3
+"""SFCraft 文档开发服务器入口: 先同步物品贴图, 再启动 hugo server。
+
+贴图同步失败(有物品找不到)时终止启动。
+
+用法:
+  python scripts/dev.py [--no-sync] [hugo server 参数...]
+"""
+
+import argparse
+import os
+import subprocess
+import sys
+from pathlib import Path
+
+SCRIPTS = Path(__file__).resolve().parent
+
+
+def find_hugo():
+    """按 HUGO 环境变量、PATH、winget 安装目录依次查找 hugo。"""
+    env = os.environ.get("HUGO")
+    if env and Path(env).is_file():
+        return env
+
+    name = "hugo.exe" if os.name == "nt" else "hugo"
+    for d in os.environ.get("PATH", "").split(os.pathsep):
+        if d:
+            cand = Path(d) / name
+            if cand.is_file():
+                return str(cand)
+
+    local = os.environ.get("LOCALAPPDATA")
+    if local:
+        base = Path(local) / "Microsoft" / "WinGet" / "Packages"
+        if base.is_dir():
+            for p in sorted(base.glob("*/hugo.exe")):
+                return str(p)
+    return None
+
+
+def main():
+    parser = argparse.ArgumentParser(description="SFCraft 开发服务器")
+    parser.add_argument(
+        "--no-sync", "-NoSync", action="store_true",
+        help="跳过贴图同步",
+    )
+    args, rest = parser.parse_known_args()
+
+    if not args.no_sync:
+        print("\n[1/2] 同步物品贴图")
+        r = subprocess.run([sys.executable, str(SCRIPTS / "sync-items.py")])
+        if r.returncode != 0:
+            print("[启动终止] 物品贴图同步失败, 未启动 hugo server。", file=sys.stderr)
+            sys.exit(r.returncode)
+    else:
+        print("[跳过] 已指定 --no-sync, 不执行贴图同步")
+
+    hugo = find_hugo()
+    if not hugo:
+        print(
+            "[错误] 未找到 hugo, 请安装 Hugo、将其加入 PATH, 或设置环境变量 HUGO。",
+            file=sys.stderr,
+        )
+        sys.exit(1)
+
+    print("\n[2/2] 启动 hugo server")
+    sys.exit(subprocess.run([hugo, "server", *rest]).returncode)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/scripts/dev.sh b/scripts/dev.sh
deleted file mode 100755
index 0635200..0000000
--- a/scripts/dev.sh
+++ /dev/null
@@ -1,47 +0,0 @@
-#!/usr/bin/env bash
-# SFCraft 文档开发服务器入口 (Linux / macOS / Unix): 先同步贴图, 再启动 hugo server。
-# 贴图同步失败(有物品找不到)时终止启动。
-# 用法: ./scripts/dev.sh [-NoSync] [hugo server 参数...]
-set -euo pipefail
-
-DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-
-NOSYNC=0
-HUGO_ARGS=()
-for arg in "$@"; do
-  case "$arg" in
-    -NoSync|--no-sync|-nosync)
-      NOSYNC=1
-      ;;
-    *)
-      HUGO_ARGS+=("$arg")
-      ;;
-  esac
-done
-
-if [ "$NOSYNC" -eq 0 ]; then
-  echo
-  echo "[1/2] 同步物品贴图"
-  "$DIR/sync-items.sh"
-else
-  echo "[跳过] 已指定 -NoSync, 不执行贴图同步"
-fi
-
-if ! command -v hugo >/dev/null 2>&1; then
-  HUGO_BIN=""
-  if [ -n "${HUGO:-}" ] && [ -x "$HUGO" ]; then
-    HUGO_BIN="$HUGO"
-  elif [ -n "${LOCALAPPDATA:-}" ]; then
-    HUGO_BIN="$(find "$LOCALAPPDATA/Microsoft/WinGet/Packages" -maxdepth 3 -name hugo.exe 2>/dev/null | head -n 1)"
-  fi
-  if [ -z "$HUGO_BIN" ]; then
-    echo "[错误] 未找到 hugo, 请安装 Hugo、将其加入 PATH, 或设置环境变量 HUGO。" >&2
-    exit 1
-  fi
-else
-  HUGO_BIN="$(command -v hugo)"
-fi
-
-echo
-echo "[2/2] 启动 hugo server"
-exec "$HUGO_BIN" server "${HUGO_ARGS[@]}"
diff --git a/scripts/sync-items.ps1 b/scripts/sync-items.ps1
deleted file mode 100644
index 3fbe5a5..0000000
--- a/scripts/sync-items.ps1
+++ /dev/null
@@ -1,248 +0,0 @@
-<#
-  SFCraft 文档 · 物品贴图自动同步
-
-  流程:
-    1. 将 sfcraft 仓库 textures/item 目录下所有贴图同步到 assets/items
-    2. 扫描 content 中所有 crafting 组件, 收集用到的物品 id
-    3. 对本地缺失的 id, 从 Minecraft wiki 自动获取(按命名规则挑选最新版本)
-    4. 仍有无法获取的 id 时, 列出并退出(返回码 1), 阻断 build / dev
-
-  用法:
-    powershell -ExecutionPolicy Bypass -File scripts\sync-items.ps1 [-Force]
-
-  说明:
-    - sfcraft 自定义贴图每次与远端比对大小, 缺失或变更时更新
-    - 原版贴图只在本地缺失时下载, 不会覆盖手动放入 assets/items 的贴图
-    - 需要联网访问 api.github.com / zh.minecraft.wiki
-#>
-[CmdletBinding()]
-param(
-  [switch]$Force
-)
-
-$ErrorActionPreference = 'Stop'
-
-$repoRoot   = Split-Path -Parent $PSScriptRoot
-$itemsDir   = Join-Path $repoRoot 'assets\items'
-$contentDir = Join-Path $repoRoot 'content'
-$ua         = 'sfcraft-docs-sync/1.0 (https://github.com/saltedfishclub/sfcraft-docs)'
-
-New-Item -ItemType Directory -Path $itemsDir -Force | Out-Null
-
-# ---------- 数据源 ----------
-$sfOwner = 'saltedfishclub'
-$sfRepo  = 'sfcraft'
-$sfRef   = 'rev/26.2'
-$sfDir   = 'src/main/resources/assets/sfcraft/textures/item'
-$sfListUrl = "https://api.github.com/repos/$sfOwner/$sfRepo/contents/$sfDir`?ref=$sfRef"
-$wikiApi   = 'https://zh.minecraft.wiki/api.php'
-$wikiImg   = 'https://zh.minecraft.wiki/images/'
-
-function Write-Step([string]$s) { Write-Host "`n== $s" -ForegroundColor Cyan }
-
-function Invoke-Get([string]$url, [int]$maxRetry = 2) {
-  for ($i = 0; ; $i++) {
-    try {
-      return Invoke-RestMethod -Uri $url -Headers @{ 'User-Agent' = $ua } -TimeoutSec 30
-    } catch {
-      if ($i -ge $maxRetry) { throw }
-      Start-Sleep -Milliseconds 800
-    }
-  }
-}
-
-# ---------- 1. sfcraft 自定义贴图 ----------
-Write-Step '1/4 同步 sfcraft 自定义贴图'
-$sfCount = 0
-$sfNew   = 0
-try {
-  $list = Invoke-Get $sfListUrl
-  foreach ($f in $list) {
-    $target = Join-Path $itemsDir $f.name
-    $need = $Force -or
-            -not (Test-Path -LiteralPath $target) -or
-            ((Get-Item -LiteralPath $target).Length -ne [int64]$f.size)
-    if ($need) {
-      Invoke-WebRequest -Uri $f.download_url -Headers @{ 'User-Agent' = $ua } -OutFile $target -TimeoutSec 60
-      $sfNew++
-    }
-    $sfCount++
-  }
-  Write-Host "  $sfCount 个文件, 本次更新 $sfNew 个"
-} catch {
-  Write-Host "  [警告] 无法访问 GitHub, 跳过 sfcraft 贴图同步: $($_.Exception.Message)" -ForegroundColor Yellow
-}
-
-# ---------- 2. 扫描 crafting 组件 ----------
-Write-Step '2/4 扫描组件物品 id'
-$ids = @{}
-$shortcodePat = [regex]'(?s){{<[ ]*crafting\b(.*?)}}'
-$pairPat      = [regex]'(\w+)="([^"]*)"'
-$slotKeys     = @('a1', 'a2', 'a3', 'b1', 'b2', 'b3', 'c1', 'c2', 'c3', 'out')
-
-function Add-ItemId([string]$raw) {
-  $v = $raw.Trim()
-  if ($v.Length -gt 0) {
-    $id = ($v -split ':')[0].Trim()
-    if ($id.Length -gt 0) { $ids[$id] = $true }
-  }
-}
-
-Get-ChildItem -Path $contentDir -Recurse -Filter '*.md' -File | ForEach-Object {
-  $text = Get-Content -LiteralPath $_.FullName -Raw -Encoding UTF8
-  foreach ($m in $shortcodePat.Matches($text)) {
-    $params = @{}
-    foreach ($p in $pairPat.Matches($m.Groups[1].Value)) { $params[$p.Groups[1].Value] = $p.Groups[2].Value }
-    foreach ($key in $slotKeys) {
-      if ($params.ContainsKey($key)) { Add-ItemId $params[$key] }
-    }
-    if ($params.ContainsKey('pattern')) {
-      $pat = $params['pattern'] -replace '\\n|;|\r?\n', ' '
-      foreach ($tok in @($pat -split '\s+' | Where-Object { $_ })) {
-        if ($tok -eq '.') { continue }
-        if ($params.ContainsKey($tok)) { Add-ItemId $params[$tok] }
-        elseif ($tok -match '^[a-z0-9_]+$') { Add-ItemId $tok }
-      }
-    }
-  }
-}
-
-$all  = @($ids.Keys | Sort-Object)
-$need = @($all | Where-Object { -not (Test-Path -LiteralPath (Join-Path $itemsDir "${_}.png")) })
-Write-Host "  使用 $($all.Count) 个物品 id, 本地已有 $($all.Count - $need.Count) 个"
-
-# ---------- 3. 从 Minecraft wiki 获取缺失贴图 ----------
-Write-Step '3/4 从 Minecraft wiki 获取缺失贴图'
-
-function Get-WikiCandidates([string]$name) {
-  $regex = '^' + [regex]::Escape($name) + '(_\(item\))?_JE\d+(\.\d+)*(_BE\d+)?\.png$'
-  # 两个查询互补:
-  #   <name>_    宽前缀, 覆盖 (item) 等变体, 如 Diamond_Boots_(item)_JE3_BE2.png
-  #   <name>_JE  窄前缀, 在宽前缀因数量被截断时兜底(裸物品如 diamond 的 JE 渲染排序靠前)
-  $urls = @(
-    "$wikiApi`?action=query&list=allimages&aiprefix=$([uri]::EscapeDataString($name + '_'))&ailimit=500&format=json",
-    "$wikiApi`?action=query&list=allimages&aiprefix=$([uri]::EscapeDataString($name + '_JE'))&ailimit=200&format=json"
-  )
-  $seen = @{}
-  $all = New-Object System.Collections.ArrayList
-  foreach ($u in $urls) {
-    try {
-      $r = Invoke-Get $u
-      if ($null -ne $r.query.allimages) {
-        foreach ($n in $r.query.allimages) {
-          if (-not $seen.ContainsKey($n.name)) {
-            [void]$seen.Add($n.name, $true)
-            [void]$all.Add($n.name)
-          }
-        }
-      }
-    } catch {
-      Write-Host "  [警告] wiki 查询失败 ($name): $($_.Exception.Message)" -ForegroundColor Yellow
-    }
-    Start-Sleep -Milliseconds 250
-  }
-  return @($all | Where-Object { $_ -match $regex })
-}
-
-function Select-BestCandidate([string]$name, [string[]]$candidates) {
-  $regex = '^' + [regex]::Escape($name) + '(_\(item\))?_JE(\d+)(\.\d+)*(_BE(\d+))?\.png$'
-  $best = $null
-  $bestKey = $null
-  foreach ($c in $candidates) {
-    $m = [regex]::Match($c, $regex)
-    if (-not $m.Success) { continue }
-    $key = @(
-      $(if ($m.Groups[1].Success) { 1 } else { 0 }),          # 优先物品图标 (item)
-      [int]$m.Groups[2].Value,                                 # JE 版本
-      $(if ($m.Groups[5].Success) { [int]$m.Groups[5].Value } else { -1 })  # BE 版本
-    )
-    if ($null -eq $bestKey) { $best = $c; $bestKey = $key; continue }
-    for ($i = 0; $i -lt 3; $i++) {
-      if ($key[$i] -ne $bestKey[$i]) {
-        if ($key[$i] -gt $bestKey[$i]) { $best = $c; $bestKey = $key }
-        break
-      }
-    }
-  }
-  return $best
-}
-
-function Get-NameVariants([string]$id) {
-  $words = @($id -split '_' | Where-Object { $_ })
-  $title = @($words | ForEach-Object { $_.Substring(0, 1).ToUpper() + $_.Substring(1) }) -join '_'
-
-  $connectors = @('and', 'of', 'the', 'for', 'with', 'to', 'from', 'by', 'in', 'on', 'at')
-  $mixed = @($words | ForEach-Object {
-    if ($connectors -contains $_) { $_ } else { $_.Substring(0, 1).ToUpper() + $_.Substring(1) }
-  }) -join '_'
-
-  $variants = New-Object System.Collections.ArrayList
-  [void]$variants.Add($title)
-  if ($mixed -cne $title) { [void]$variants.Add($mixed) }
-  if ($id.Length -le 4 -and $id -notmatch '[aeiou]') { [void]$variants.Add($id.ToUpper()) }
-  $oneWord = @($words | ForEach-Object { $_.Substring(0, 1).ToUpper() + $_.Substring(1) }) -join ''
-  if ($oneWord -cne $title) { [void]$variants.Add($oneWord) }
-
-  $aliases = @{
-    'tnt'            = 'TNT'
-    'tnt_minecart'   = 'TNT_Minecart'
-    'dragon_breath'  = "Dragon's_Breath"
-    'slime_ball'     = 'Slime'
-    'snow_golem'     = 'Snow_Golem'
-    'ocelot'         = 'Ocelot'
-  }
-  if ($aliases.ContainsKey($id)) { [void]$variants.Insert(0, $aliases[$id]) }
-  return @($variants | Select-Object -Unique)
-}
-
-$failed = @()
-foreach ($id in $need) {
-  $file = $null
-  foreach ($name in Get-NameVariants $id) {
-    $cands = Get-WikiCandidates $name
-    if ($cands.Count -gt 0) { $file = Select-BestCandidate $name $cands; break }
-  }
-
-  if ($file) {
-    $target = Join-Path $itemsDir "$id.png"
-    try {
-      Invoke-WebRequest -Uri ($wikiImg + [uri]::EscapeDataString($file)) -Headers @{ 'User-Agent' = $ua } -OutFile $target -TimeoutSec 60
-      $fs = [System.IO.File]::OpenRead($target)
-      $sig = New-Object byte[] 8
-      [void]$fs.Read($sig, 0, 8)
-      $fs.Close()
-      if (-not ($sig[0] -eq 137 -and $sig[1] -eq 80 -and $sig[2] -eq 78 -and $sig[3] -eq 71)) {
-        throw '下载内容不是有效 PNG'
-      }
-      Write-Host "  ok    $id  <-  $file" -ForegroundColor Green
-      continue
-    } catch {
-      Write-Host "  fail  $id  下载失败: $($_.Exception.Message)" -ForegroundColor Yellow
-    }
-  } else {
-    Write-Host "  fail  $id  在 wiki 上未找到" -ForegroundColor Yellow
-  }
-  $failed += $id
-}
-
-# ---------- 4. 汇总错误 ----------
-if ($failed.Count -gt 0) {
-  Write-Host "`n[错误] 以下物品贴图无法自动获取:" -ForegroundColor Red
-  $failed | Sort-Object | ForEach-Object { Write-Host "  - $_" -ForegroundColor Red }
-  Write-Host @"
-
-可能原因:
-  1. 物品 id 拼写错误(组件中填写的是 assets/items 下的文件名)
-  2. 该物品是 sfcraft 自定义物品, 但 textures/item 目录中没有同名贴图
-  3. 原版物品在 Minecraft wiki 上的命名特殊, 未被自动规则覆盖
-
-解决办法:
-  - 将贴图手动放入 assets/items/<id>.png 后重新运行
-  - 修正组件中的物品 id
-  - 若是 wiki 命名特例, 可在 scripts/sync-items.ps1 的 Get-NameVariants 别名表中补充
-"@ -ForegroundColor Yellow
-  exit 1
-}
-
-Write-Host "`n全部贴图就绪 ✓" -ForegroundColor Green
-exit 0
diff --git a/scripts/sync-items.py b/scripts/sync-items.py
index ff2c4a0..411e6d7 100644
--- a/scripts/sync-items.py
+++ b/scripts/sync-items.py
@@ -1,7 +1,6 @@
 #!/usr/bin/env python3
-"""SFCraft 文档 · 物品贴图自动同步 (Linux / macOS / Unix 版)
+"""SFCraft 文档 · 物品贴图自动同步 (Python 3)
 
-与 scripts/sync-items.ps1 逻辑一致:
   1. 下载 sfcraft 仓库 textures/item 全部贴图到 assets/items
   2. 扫描 content 中 crafting 组件用到的物品 id (支持九格直填与 pattern 别名两种写法)
   3. 本地缺失的 id 从 Minecraft wiki 自动获取(自动挑选最新版本渲染)
@@ -50,18 +49,19 @@ ALIASES = {
 }
 
 
-def http_get_json(url, retries=2):
-    last = None
+def http_get_json(url: str, retries: int = 2) -> dict:
     for i in range(retries + 1):
         try:
             req = urllib.request.Request(url, headers={"User-Agent": UA})
             with urllib.request.urlopen(req, timeout=30) as resp:
                 return json.load(resp)
-        except Exception as e:  # noqa: BLE001
-            last = e
+        except Exception:  # noqa: BLE001
             if i < retries:
                 time.sleep(0.8)
-    raise last
+            else:
+                raise
+    # 理论上不可达(retries 为负时 range 为空才可能走到), 兜底避免隐式返回 None
+    raise RuntimeError(f"请求失败(无可用异常信息): {url}")
 
 
 def http_download(url, target):
@@ -84,7 +84,7 @@ def add_item_id(ids, raw):
 
 def scan_item_ids():
     """扫描 content 下所有 crafting 组件, 收集物品 id。"""
-    ids = set()
+    ids: set[str] = set()
     for path in sorted(CONTENT_DIR.rglob("*.md")):
         try:
             text = path.read_text(encoding="utf-8")
diff --git a/scripts/sync-items.sh b/scripts/sync-items.sh
deleted file mode 100755
index 995faf0..0000000
--- a/scripts/sync-items.sh
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/usr/bin/env bash
-# SFCraft 文档 · 物品贴图自动同步 (Linux / macOS / Unix)
-# 用法: ./scripts/sync-items.sh [-f]
-set -euo pipefail
-
-DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-
-PY=""
-if command -v python3 >/dev/null 2>&1 && python3 -c "import sys" >/dev/null 2>&1; then
-  PY="python3"
-elif command -v python >/dev/null 2>&1 && python -c "import sys" >/dev/null 2>&1; then
-  PY="python"
-else
-  echo "[错误] 未找到可用的 python3 / python, 请先安装 Python 3。" >&2
-  exit 1
-fi
-
-exec "$PY" "$DIR/sync-items.py" "$@"