diff --git a/start.bat b/start.bat
index b8ed900..96e5cc1 100644
--- a/start.bat
+++ b/start.bat
@@ -1,135 +1,213 @@
 @echo off
 chcp 65001 >nul 2>&1
-setlocal enabledelayedexpansion
+setlocal EnableExtensions EnableDelayedExpansion
 title Grok 注册机 - 一键启动
 
 echo ============================================
 echo    Grok 注册机 - 一键启动 (Windows)
 echo ============================================
 echo.
+echo  首次运行会自动:
+echo    1. 安装 uv（如缺失）
+echo    2. 安装 Python 3.13（如缺失，经 uv 管理）
+echo    3. 同步 Python 依赖
+echo    4. 尝试安装 Chrome（如缺失且可用 winget）
+echo    5. 从模板复制 .env / config.json（如缺失）
+echo.
 
 cd /d "%~dp0"
 
-:: ── 1. 检测 Python 3.13+ ──
-echo [1/5] 检测 Python 环境...
-set PYTHON_BIN=
+:: 预置 uv 常见路径
+set "PATH=%USERPROFILE%\.local\bin;%USERPROFILE%\.cargo\bin;%LOCALAPPDATA%\uv;%USERPROFILE%\.uv\bin;%PATH%"
 
-:: 尝试常见 Python 路径
-for %%P in (
-    "%LOCALAPPDATA%\Programs\Python\Python313\python.exe"
-    "%LOCALAPPDATA%\Programs\Python\Python314\python.exe"
-    "python3.13"
-    "python3"
-    "python"
-    "py"
-) do (
-    if not defined PYTHON_BIN (
-        where %%~P >nul 2>&1
-        if !errorlevel! equ 0 (
-            call :check_python_version %%~P
-        )
-    )
-)
-
-:: 检查 .venv
-if not defined PYTHON_BIN (
-    if exist ".venv\Scripts\python.exe" (
-        call :check_python_version ".venv\Scripts\python.exe"
-    )
-)
-
-if not defined PYTHON_BIN (
-    echo [X] 未找到 Python 3.13+
-    echo.
-    echo   请通过以下任一方式安装 Python 3.13:
-    echo.
-    echo   方式 1: 官方安装包 (推荐)
-    echo     https://www.python.org/downloads/
-    echo     下载 Python 3.13.x，安装时勾选 "Add Python to PATH"
-    echo.
-    echo   方式 2: 使用 uv 自动获取
-    echo     powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex"
-    echo     uv python install 3.13
-    echo.
-    echo   方式 3: winget
-    echo     winget install Python.Python.3.13
-    echo.
-    pause
-    exit /b 1
-)
-
-echo   [OK] Python: %PYTHON_BIN%
-echo.
-
-:: ── 2. 检测/安装 uv ──
-echo [2/5] 检测 uv 包管理器...
+:: ── 1. 检测/安装 uv ──
+echo [1/5] 检测/安装 uv 包管理器...
 where uv >nul 2>&1
-if %errorlevel% equ 0 (
+if !errorlevel! equ 0 (
     for /f "tokens=*" %%V in ('uv --version 2^>nul') do echo   [OK] uv: %%V
     goto :uv_ok
 )
 
 echo   [!] 未检测到 uv，正在自动安装...
-powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex"
-if %errorlevel% neq 0 (
-    echo [X] uv 安装失败，请手动安装:
-    echo   powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex"
+powershell -NoProfile -ExecutionPolicy Bypass -Command "irm https://astral.sh/uv/install.ps1 | iex"
+if !errorlevel! neq 0 (
+    echo [X] uv 安装失败，请手动执行:
+    echo   powershell -ExecutionPolicy Bypass -c "irm https://astral.sh/uv/install.ps1 | iex"
     pause
     exit /b 1
 )
 
-:: 刷新 PATH
 call :refresh_path
-
 where uv >nul 2>&1
-if %errorlevel% equ 0 (
+if !errorlevel! equ 0 (
     for /f "tokens=*" %%V in ('uv --version 2^>nul') do echo   [OK] uv 安装成功: %%V
 ) else (
-    echo [X] uv 安装后仍未找到，请重启终端后重试
+    echo [X] uv 安装后仍未找到，请关闭本窗口后重新运行 start.bat
     pause
     exit /b 1
 )
 :uv_ok
 echo.
 
-:: ── 3. 同步依赖 ──
-echo [3/5] 同步 Python 依赖...
-uv sync
-if %errorlevel% neq 0 (
-    echo [X] 依赖同步失败
-    pause
-    exit /b 1
-)
-echo   [OK] 依赖同步完成
-echo.
+:: ── 2. 检测/安装 Python 3.13 ──
+echo [2/5] 检测/安装 Python 3.13...
+set "PYTHON_OK=0"
 
-:: ── 4. 检测浏览器 ──
-echo [4/5] 检测浏览器...
-set BROWSER_FOUND=0
-
-for %%B in (
-    "C:\Program Files\Google\Chrome\Application\chrome.exe"
-    "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"
-    "%LOCALAPPDATA%\Google\Chrome\Application\chrome.exe"
-    "chrome"
-    "chromium"
+:: 系统 / py launcher
+for %%P in (
+    "%LOCALAPPDATA%\Programs\Python\Python313\python.exe"
+    "%LOCALAPPDATA%\Programs\Python\Python314\python.exe"
+    "%ProgramFiles%\Python313\python.exe"
+    "python"
+    "python3"
+    "py"
 ) do (
-    if !BROWSER_FOUND! equ 0 (
-        if exist %%B (
-            echo   [OK] 浏览器: %%B
-            set BROWSER_FOUND=1
+    if !PYTHON_OK! equ 0 (
+        call :try_python "%%~P"
+    )
+)
+
+:: 项目 venv
+if !PYTHON_OK! equ 0 (
+    if exist ".venv\Scripts\python.exe" (
+        call :try_python ".venv\Scripts\python.exe"
+    )
+)
+
+:: uv 已管理的 3.13
+if !PYTHON_OK! equ 0 (
+    for /f "delims=" %%P in ('uv python find 3.13 2^>nul') do (
+        if exist "%%~P" (
+            call :try_python "%%~P"
         )
     )
 )
 
-if %BROWSER_FOUND% equ 0 (
-    echo   [!] 未检测到 Chrome/Chromium 浏览器
-    echo.
-    echo   DrissionPage 需要 Chrome 才能运行。
-    echo   请安装 Google Chrome: https://www.google.com/chrome/
-    echo.
-    echo   脚本将继续，但注册可能因缺少浏览器而失败。
+if !PYTHON_OK! equ 1 (
+    echo   [OK] Python 3.13+ 已可用
+    goto :python_ok
 )
+
+echo   [!] 未找到 Python 3.13+，正在通过 uv 安装...
+uv python install 3.13
+if !errorlevel! neq 0 (
+    echo [X] uv python install 3.13 失败
+    echo   也可尝试: winget install Python.Python.3.13
+    pause
+    exit /b 1
+)
+
+call :refresh_path
+for /f "delims=" %%P in ('uv python find 3.13 2^>nul') do (
+    if exist "%%~P" (
+        call :try_python "%%~P"
+    )
+)
+
+if !PYTHON_OK! equ 1 (
+    echo   [OK] Python 3.13 已由 uv 安装完成
+) else (
+    :: uv run 仍可能解析到托管 Python
+    uv run --python 3.13 python -c "import sys; raise SystemExit(0 if sys.version_info >= (3,13) else 1)" >nul 2>&1
+    if !errorlevel! equ 0 (
+        set "PYTHON_OK=1"
+        echo   [OK] Python 3.13 已由 uv 管理（将通过 uv run 调用）
+    ) else (
+        echo [X] 无法安装或定位 Python 3.13
+        pause
+        exit /b 1
+    )
+)
+:python_ok
+echo.
+
+:: ── 3. 同步依赖 ──
+echo [3/5] 同步 Python 依赖...
+uv sync --python 3.13
+if !errorlevel! neq 0 (
+    echo   [!] uv sync --python 3.13 失败，尝试默认 uv sync...
+    uv sync
+    if !errorlevel! neq 0 (
+        echo [X] 依赖同步失败
+        pause
+        exit /b 1
+    )
+)
+echo   [OK] 依赖同步完成
+echo.
+
+:: ── 4. 检测/尝试安装浏览器 ──
+echo [4/5] 检测/安装浏览器...
+set "BROWSER_FOUND=0"
+set "BROWSER_PATH="
+
+for %%B in (
+    "%ProgramFiles%\Google\Chrome\Application\chrome.exe"
+    "%ProgramFiles(x86)%\Google\Chrome\Application\chrome.exe"
+    "%LOCALAPPDATA%\Google\Chrome\Application\chrome.exe"
+    "%ProgramFiles%\Chromium\Application\chrome.exe"
+    "%LOCALAPPDATA%\Chromium\Application\chrome.exe"
+) do (
+    if !BROWSER_FOUND! equ 0 (
+        if exist "%%~B" (
+            set "BROWSER_FOUND=1"
+            set "BROWSER_PATH=%%~B"
+        )
+    )
+)
+
+if !BROWSER_FOUND! equ 1 (
+    echo   [OK] 浏览器: !BROWSER_PATH!
+    goto :browser_ok
+)
+
+where chrome >nul 2>&1
+if !errorlevel! equ 0 (
+    for /f "delims=" %%C in ('where chrome 2^>nul') do (
+        echo   [OK] 浏览器: %%C
+        set "BROWSER_FOUND=1"
+        goto :browser_ok
+    )
+)
+
+echo   [!] 未检测到 Chrome，尝试自动安装...
+
+:: 优先 winget
+where winget >nul 2>&1
+if !errorlevel! equ 0 (
+    echo   → 使用 winget 安装 Google Chrome...
+    winget install -e --id Google.Chrome --accept-package-agreements --accept-source-agreements
+    if !errorlevel! equ 0 (
+        echo   [OK] winget 安装命令已完成
+    ) else (
+        echo   [!] winget 安装可能未成功（权限/策略限制）
+    )
+) else (
+    echo   [!] 未找到 winget，跳过自动安装
+    echo       请手动安装: https://www.google.com/chrome/
+)
+
+:: 再扫一次
+set "BROWSER_FOUND=0"
+for %%B in (
+    "%ProgramFiles%\Google\Chrome\Application\chrome.exe"
+    "%ProgramFiles(x86)%\Google\Chrome\Application\chrome.exe"
+    "%LOCALAPPDATA%\Google\Chrome\Application\chrome.exe"
+) do (
+    if !BROWSER_FOUND! equ 0 (
+        if exist "%%~B" (
+            set "BROWSER_FOUND=1"
+            echo   [OK] 浏览器已就绪: %%~B
+        )
+    )
+)
+
+if !BROWSER_FOUND! equ 0 (
+    echo   [!] 仍未检测到 Chrome
+    echo   DrissionPage 需要 Chrome；协议 mint 不强制浏览器，回退流程需要。
+    echo   脚本将继续，注册可能因缺少浏览器而失败。
+)
+:browser_ok
 echo.
 
 :: ── 5. 配置文件模板 ──
@@ -137,8 +215,10 @@ echo [5/5] 检查配置文件...
 
 if not exist ".env" (
     if exist ".env.example" (
-        copy ".env.example" ".env" >nul
+        copy /Y ".env.example" ".env" >nul
         echo   [!] 已从 .env.example 创建 .env，请编辑填入真实配置
+    ) else (
+        echo   [!] 无 .env / .env.example（可直接写 config.json）
     )
 ) else (
     echo   [OK] .env 已存在
@@ -146,8 +226,12 @@ if not exist ".env" (
 
 if not exist "config.json" (
     if exist "config.example.json" (
-        copy "config.example.json" "config.json" >nul
+        copy /Y "config.example.json" "config.json" >nul
         echo   [!] 已从 config.example.json 创建 config.json，请编辑填入真实配置
+    ) else (
+        echo [X] 缺少 config.json 与 config.example.json
+        pause
+        exit /b 1
     )
 ) else (
     echo   [OK] config.json 已存在
@@ -163,27 +247,40 @@ echo.
 if "%~1"=="" (
     echo [*] 默认模式：不限数量，持续注册（Ctrl+C 停止）
     echo.
-    uv run python -u register_cli.py --count 0
+    uv run --python 3.13 python -u register_cli.py --count 0
 ) else (
-    uv run python -u register_cli.py %*
+    uv run --python 3.13 python -u register_cli.py %*
 )
 
+set "EXIT_CODE=!errorlevel!"
 echo.
+if !EXIT_CODE! neq 0 (
+    echo [X] 进程退出码: !EXIT_CODE!
+) else (
+    echo [OK] 已结束
+)
 pause
-exit /b 0
+exit /b !EXIT_CODE!
 
 :: ── 辅助函数 ──
 
-:check_python_version
-:: 检查指定 Python 版本是否 >= 3.13
-set "PY_PATH=%~1"
-"%PY_PATH%" -c "import sys; sys.exit(0 if sys.version_info >= (3,13) else 1)" >nul 2>&1
-if %errorlevel% equ 0 (
-    set "PYTHON_BIN=%PY_PATH%"
+:try_python
+:: 检查指定解释器是否 >= 3.13
+set "PY_CAND=%~1"
+if "%PY_CAND%"=="" exit /b 0
+where "%PY_CAND%" >nul 2>&1
+if errorlevel 1 (
+    if not exist "%PY_CAND%" exit /b 0
+)
+"%PY_CAND%" -c "import sys; raise SystemExit(0 if sys.version_info >= (3,13) else 1)" >nul 2>&1
+if !errorlevel! equ 0 (
+    set "PYTHON_OK=1"
+    for /f "tokens=*" %%V in ('"%PY_CAND%" --version 2^>^&1') do echo   [OK] %%V  ^(%PY_CAND%^)
 )
 exit /b 0
 
 :refresh_path
-:: 刷新 PATH，加入 uv 安装路径
-set "PATH=%USERPROFILE%\.local\bin;%USERPROFILE%\.cargo\bin;%PATH%"
-exit /b 0
\ No newline at end of file
+:: 合并用户/机器 PATH，并补上 uv 默认目录
+for /f "usebackq delims=" %%A in (`powershell -NoProfile -Command "[Environment]::GetEnvironmentVariable('Path','User') + ';' + [Environment]::GetEnvironmentVariable('Path','Machine')"`) do set "PATH=%%A"
+set "PATH=%USERPROFILE%\.local\bin;%USERPROFILE%\.cargo\bin;%LOCALAPPDATA%\uv;%USERPROFILE%\.uv\bin;%PATH%"
+exit /b 0
diff --git a/start.sh b/start.sh
index 0fafe77..c191d29 100755
--- a/start.sh
+++ b/start.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 # ============================================================================
-#  Grok 注册机 - 一键启动脚本 (Linux)
-#  自动检测/安装环境依赖，然后启动 register_cli.py
+#  Grok 注册机 - 一键启动脚本 (Linux / macOS)
+#  自动检测并安装缺失环境，然后启动 register_cli.py
 #
 #  用法:
 #    ./start.sh                          # 默认不限数量（持续注册）
@@ -10,10 +10,10 @@
 #    ./start.sh --extra 5                # 在已有基础上再注册 5 个
 #
 #  首次运行会自动:
-#    1. 检测 Python 3.13+
-#    2. 安装 uv 包管理器
+#    1. 安装 uv（如缺失）
+#    2. 安装 Python 3.13（如缺失，经 uv 管理）
 #    3. 同步 Python 依赖
-#    4. 检测 Chrome/Chromium 浏览器
+#    4. 尝试安装 Chrome/Chromium（如缺失且有权限）
 #    5. 从模板复制 .env / config.json（如缺失）
 # ============================================================================
 set -euo pipefail
@@ -29,107 +29,132 @@ NC='\033[0m'
 PROJECT_DIR="$(cd "$(dirname "$0")" && pwd)"
 cd "$PROJECT_DIR"
 
+# uv 常见安装路径，确保后续命令能找到
+export PATH="$HOME/.local/bin:$HOME/.cargo/bin:$PATH"
+
 echo -e "${CYAN}${BOLD}============================================${NC}"
-echo -e "${CYAN}${BOLD}   Grok 注册机 - 一键启动 (Linux)${NC}"
+echo -e "${CYAN}${BOLD}   Grok 注册机 - 一键启动 (Linux/macOS)${NC}"
 echo -e "${CYAN}${BOLD}============================================${NC}"
 echo ""
 
-# ── 1. 检测 Python 3.13+ ──
-step1_check_python() {
-    echo -e "${CYAN}[1/5] 检测 Python 环境...${NC}"
-
-    # 优先使用 mise（如果已安装）
-    if command -v mise &>/dev/null && mise which python &>/dev/null 2>&1; then
-        local py
-        py=$(mise which python 2>/dev/null || true)
-        if [ -n "$py" ] && "$py" -c "import sys; sys.exit(0 if sys.version_info >= (3,13) else 1)" 2>/dev/null; then
-            echo -e "  ${GREEN}✓${NC} Python (mise): $($py --version 2>&1)  at $py"
-            PYTHON_BIN="$py"
-            return 0
-        fi
-    fi
-
-    # 检查系统 Python
-    for candidate in python3.13 python3.14 python3 python; do
-        if command -v "$candidate" &>/dev/null; then
-            local ver
-            ver=$("$candidate" -c "import sys; print(f'{sys.version_info.major}.{sys.version_info.minor}')" 2>/dev/null || echo "0")
-            local major
-            major=$(echo "$ver" | cut -d. -f1)
-            if [ "$major" -ge 3 ]; then
-                local minor
-                minor=$(echo "$ver" | cut -d. -f2)
-                if [ "$minor" -ge 13 ]; then
-                    echo -e "  ${GREEN}✓${NC} Python $ver: $("$candidate" --version 2>&1)"
-                    PYTHON_BIN="$candidate"
-                    return 0
-                fi
-            fi
-        fi
-    done
-
-    # 检查 .venv
-    if [ -f "$PROJECT_DIR/.venv/bin/python3" ]; then
-        local py="$PROJECT_DIR/.venv/bin/python3"
-        if "$py" -c "import sys; sys.exit(0 if sys.version_info >= (3,13) else 1)" 2>/dev/null; then
-            echo -e "  ${GREEN}✓${NC} Python (.venv): $("$py" --version 2>&1)"
-            PYTHON_BIN="$py"
-            return 0
-        fi
-    fi
-
-    echo -e "  ${RED}✗${NC} 未找到 Python 3.13+"
-    echo ""
-    echo -e "  ${YELLOW}请通过以下任一方式安装 Python 3.13:${NC}"
-    echo ""
-    echo "    # 方式 1: 使用 mise（推荐，自动管理版本+venv）"
-    echo "    curl https://mise.run | sh"
-    echo "    mise install python@3.13"
-    echo "    mise trust"
-    echo ""
-    echo "    # 方式 2: Ubuntu/Debian deadsnakes PPA"
-    echo "    sudo add-apt-repository -y ppa:deadsnakes/ppa"
-    echo "    sudo apt update && sudo apt install -y python3.13 python3.13-venv"
-    echo ""
-    echo "    # 方式 3: 使用 uv 自动获取 Python"
-    echo "    curl -LsSf https://astral.sh/uv/install.sh | sh"
-    echo "    uv python install 3.13"
-    echo ""
-    echo "    # 方式 4: Arch Linux"
-    echo "    sudo pacman -S python"
-    echo ""
-    return 1
+have_cmd() {
+    command -v "$1" &>/dev/null
 }
 
-# ── 2. 检测/安装 uv ──
-step2_check_uv() {
-    echo -e "${CYAN}[2/5] 检测 uv 包管理器...${NC}"
+# ── 0. 基础工具 ──
+step0_basics() {
+    echo -e "${CYAN}[0/5] 检查基础工具...${NC}"
+    if ! have_cmd curl && ! have_cmd wget; then
+        echo -e "  ${RED}✗${NC} 需要 curl 或 wget 才能自动安装环境"
+        echo "  请先安装: sudo apt install -y curl   或   sudo yum install -y curl"
+        return 1
+    fi
+    if have_cmd curl; then
+        echo -e "  ${GREEN}✓${NC} curl 可用"
+    else
+        echo -e "  ${GREEN}✓${NC} wget 可用"
+    fi
+}
 
-    if command -v uv &>/dev/null; then
+# ── 1. 检测/安装 uv ──
+step1_install_uv() {
+    echo -e "${CYAN}[1/5] 检测/安装 uv 包管理器...${NC}"
+
+    if have_cmd uv; then
         echo -e "  ${GREEN}✓${NC} uv: $(uv --version 2>&1)"
         return 0
     fi
 
     echo -e "  ${YELLOW}⚠${NC} 未检测到 uv，正在自动安装..."
-    if command -v curl &>/dev/null; then
+    if have_cmd curl; then
         curl -LsSf https://astral.sh/uv/install.sh | sh
-    elif command -v wget &>/dev/null; then
-        wget -qO- https://astral.sh/uv/install.sh | sh
     else
-        echo -e "  ${RED}✗${NC} 需要 curl 或 wget 来安装 uv"
-        echo "  请手动安装: curl -LsSf https://astral.sh/uv/install.sh | sh"
-        return 1
+        wget -qO- https://astral.sh/uv/install.sh | sh
     fi
 
-    # 重新加载 PATH（uv 安装到 ~/.local/bin 或 ~/.cargo/bin）
     export PATH="$HOME/.local/bin:$HOME/.cargo/bin:$PATH"
 
-    if command -v uv &>/dev/null; then
+    # 部分环境写到 ~/.profile，再补一次常见路径
+    if [ -f "$HOME/.local/bin/env" ]; then
+        # shellcheck disable=SC1091
+        source "$HOME/.local/bin/env" 2>/dev/null || true
+    fi
+
+    if have_cmd uv; then
         echo -e "  ${GREEN}✓${NC} uv 安装成功: $(uv --version 2>&1)"
         return 0
     fi
 
-    echo -e "  ${RED}✗${NC} uv 安装失败，请手动安装: https://docs.astral.sh/uv/"
+    echo -e "  ${RED}✗${NC} uv 安装失败，请手动: curl -LsSf https://astral.sh/uv/install.sh | sh"
+    return 1
+}
+
+# ── 2. 检测/安装 Python 3.13 ──
+# 策略: 优先系统/mise 已有 3.13；否则用 uv 下载管理 Python
+step2_install_python() {
+    echo -e "${CYAN}[2/5] 检测/安装 Python 3.13...${NC}"
+    PYTHON_BIN=""
+
+    # mise 托管的 python
+    if have_cmd mise && [ -f "$PROJECT_DIR/mise.toml" ]; then
+        # 尝试按项目配置安装工具链
+        if mise install 2>/dev/null; then
+            local py
+            py=$(mise which python 2>/dev/null || true)
+            if [ -n "$py" ] && "$py" -c "import sys; sys.exit(0 if sys.version_info >= (3,13) else 1)" 2>/dev/null; then
+                PYTHON_BIN="$py"
+                echo -e "  ${GREEN}✓${NC} Python (mise): $($py --version 2>&1)  at $py"
+                return 0
+            fi
+        fi
+    fi
+
+    # 系统 / PATH 上的 3.13+
+    local candidate
+    for candidate in python3.13 python3.14 python3 python; do
+        if have_cmd "$candidate"; then
+            if "$candidate" -c "import sys; sys.exit(0 if sys.version_info >= (3,13) else 1)" 2>/dev/null; then
+                PYTHON_BIN="$candidate"
+                echo -e "  ${GREEN}✓${NC} Python: $($candidate --version 2>&1)"
+                return 0
+            fi
+        fi
+    done
+
+    # 项目 .venv
+    if [ -x "$PROJECT_DIR/.venv/bin/python" ]; then
+        if "$PROJECT_DIR/.venv/bin/python" -c "import sys; sys.exit(0 if sys.version_info >= (3,13) else 1)" 2>/dev/null; then
+            PYTHON_BIN="$PROJECT_DIR/.venv/bin/python"
+            echo -e "  ${GREEN}✓${NC} Python (.venv): $($PYTHON_BIN --version 2>&1)"
+            return 0
+        fi
+    fi
+
+    # 用 uv 安装托管的 Python 3.13
+    echo -e "  ${YELLOW}⚠${NC} 未找到 Python 3.13+，正在通过 uv 安装..."
+    if ! uv python install 3.13; then
+        echo -e "  ${RED}✗${NC} uv python install 3.13 失败"
+        echo "  也可手动: uv python install 3.13"
+        return 1
+    fi
+
+    # 解析 uv 管理的 python 路径
+    local uv_py
+    uv_py=$(uv python find 3.13 2>/dev/null || true)
+    if [ -n "$uv_py" ] && [ -x "$uv_py" ]; then
+        PYTHON_BIN="$uv_py"
+        echo -e "  ${GREEN}✓${NC} Python (uv): $($uv_py --version 2>&1)  at $uv_py"
+        return 0
+    fi
+
+    # uv python find 失败时，后续 uv run 仍可自动解析
+    if uv run --python 3.13 python -c "import sys; sys.exit(0 if sys.version_info >= (3,13) else 1)" 2>/dev/null; then
+        PYTHON_BIN="uv-managed"
+        echo -e "  ${GREEN}✓${NC} Python 3.13 已由 uv 管理（将通过 uv run 调用）"
+        return 0
+    fi
+
+    echo -e "  ${RED}✗${NC} 无法安装或定位 Python 3.13"
     return 1
 }
 
@@ -137,53 +162,101 @@ step2_check_uv() {
 step3_sync_deps() {
     echo -e "${CYAN}[3/5] 同步 Python 依赖...${NC}"
 
-    if command -v mise &>/dev/null && [ -f "$PROJECT_DIR/mise.toml" ]; then
-        # mise 管理 venv，直接用 uv sync
-        if [ -n "${PYTHON_BIN:-}" ]; then
-            "$PYTHON_BIN" -m uv sync 2>/dev/null || uv sync
-        else
-            uv sync
+    # 固定使用 3.13，避免系统默认 python 过旧
+    if ! uv sync --python 3.13; then
+        echo -e "  ${YELLOW}⚠${NC} uv sync --python 3.13 失败，尝试默认 uv sync..."
+        if ! uv sync; then
+            echo -e "  ${RED}✗${NC} 依赖同步失败"
+            return 1
         fi
-    else
-        # 纯 uv 模式
-        uv sync
     fi
 
     echo -e "  ${GREEN}✓${NC} 依赖同步完成"
 }
 
-# ── 4. 检测浏览器 ──
+# ── 4. 检测/尝试安装浏览器 ──
 step4_check_browser() {
-    echo -e "${CYAN}[4/5] 检测浏览器...${NC}"
+    echo -e "${CYAN}[4/5] 检测/安装浏览器...${NC}"
 
-    local found=false
+    local candidate
     for candidate in \
         google-chrome-stable google-chrome chromium chromium-browser \
         /usr/bin/google-chrome-stable /usr/bin/google-chrome \
-        /snap/bin/chromium /usr/bin/chromium /usr/bin/chromium-browser; do
-        if command -v "$candidate" &>/dev/null || [ -x "$candidate" ] 2>/dev/null; then
+        /snap/bin/chromium /usr/bin/chromium /usr/bin/chromium-browser \
+        "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome"; do
+        if have_cmd "$candidate" || [ -x "$candidate" ] 2>/dev/null; then
             echo -e "  ${GREEN}✓${NC} 浏览器: $(command -v "$candidate" 2>/dev/null || echo "$candidate")"
-            found=true
-            break
+            return 0
         fi
     done
 
-    if ! $found; then
-        echo -e "  ${YELLOW}⚠${NC} 未检测到 Chrome/Chromium 浏览器"
-        echo ""
-        echo "  DrissionPage 需要 Chrome 或 Chromium 才能运行。"
-        echo ""
-        echo "  安装方式:"
-        echo "    # Ubuntu/Debian"
-        echo "    sudo apt install -y chromium-browser"
-        echo "    # 或安装 Google Chrome:"
-        echo "    wget -q -O /tmp/chrome.deb https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb"
-        echo "    sudo dpkg -i /tmp/chrome.deb"
-        echo ""
-        echo "    # Arch Linux"
-        echo "    sudo pacman -S chromium"
-        echo ""
-        echo "  ${YELLOW}脚本将继续，但注册可能因缺少浏览器而失败。${NC}"
+    echo -e "  ${YELLOW}⚠${NC} 未检测到 Chrome/Chromium，尝试自动安装..."
+
+    local installed=false
+
+    # Debian/Ubuntu
+    if have_cmd apt-get; then
+        if have_cmd sudo; then
+            if sudo -n true 2>/dev/null; then
+                echo "  → 使用 apt 安装 chromium（免密 sudo）..."
+                if sudo apt-get update -qq && sudo DEBIAN_FRONTEND=noninteractive apt-get install -y -qq chromium-browser chromium 2>/dev/null; then
+                    installed=true
+                fi
+            else
+                echo -e "  ${YELLOW}⚠${NC} 检测到 apt，但需要交互 sudo，跳过自动安装浏览器"
+                echo "    可手动: sudo apt install -y chromium-browser"
+            fi
+        fi
+    # Arch
+    elif have_cmd pacman; then
+        if have_cmd sudo && sudo -n true 2>/dev/null; then
+            echo "  → 使用 pacman 安装 chromium..."
+            if sudo pacman -Sy --noconfirm chromium 2>/dev/null; then
+                installed=true
+            fi
+        else
+            echo "    可手动: sudo pacman -S chromium"
+        fi
+    # Fedora/RHEL
+    elif have_cmd dnf; then
+        if have_cmd sudo && sudo -n true 2>/dev/null; then
+            echo "  → 使用 dnf 安装 chromium..."
+            if sudo dnf install -y chromium 2>/dev/null; then
+                installed=true
+            fi
+        else
+            echo "    可手动: sudo dnf install -y chromium"
+        fi
+    # macOS Homebrew
+    elif have_cmd brew; then
+        echo "  → 使用 Homebrew 安装 Google Chrome..."
+        if brew install --cask google-chrome 2>/dev/null; then
+            installed=true
+        fi
+    fi
+
+    # 再检测一次
+    for candidate in \
+        google-chrome-stable google-chrome chromium chromium-browser \
+        /usr/bin/google-chrome-stable /usr/bin/google-chrome \
+        /snap/bin/chromium /usr/bin/chromium /usr/bin/chromium-browser \
+        "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome"; do
+        if have_cmd "$candidate" || [ -x "$candidate" ] 2>/dev/null; then
+            echo -e "  ${GREEN}✓${NC} 浏览器已就绪: $(command -v "$candidate" 2>/dev/null || echo "$candidate")"
+            return 0
+        fi
+    done
+
+    if $installed; then
+        echo -e "  ${YELLOW}⚠${NC} 安装命令已执行，但仍未在 PATH 中找到浏览器，请重启终端后重试"
+    else
+        echo -e "  ${YELLOW}⚠${NC} 未能自动安装浏览器"
+        echo "  DrissionPage 需要 Chrome/Chromium；协议 mint 不强制浏览器，回退流程需要。"
+        echo "  手动安装示例:"
+        echo "    Ubuntu/Debian: sudo apt install -y chromium-browser"
+        echo "    Arch:          sudo pacman -S chromium"
+        echo "    macOS:         brew install --cask google-chrome"
+        echo "  ${YELLOW}脚本将继续，注册可能因缺少浏览器而失败。${NC}"
     fi
 }
 
@@ -196,6 +269,8 @@ step5_config_templates() {
         echo -e "  ${YELLOW}⚠${NC} 已从 .env.example 创建 .env，请编辑填入真实配置"
     elif [ -f "$PROJECT_DIR/.env" ]; then
         echo -e "  ${GREEN}✓${NC} .env 已存在"
+    else
+        echo -e "  ${YELLOW}⚠${NC} 无 .env / .env.example（可直接写 config.json）"
     fi
 
     if [ ! -f "$PROJECT_DIR/config.json" ] && [ -f "$PROJECT_DIR/config.example.json" ]; then
@@ -203,20 +278,25 @@ step5_config_templates() {
         echo -e "  ${YELLOW}⚠${NC} 已从 config.example.json 创建 config.json，请编辑填入真实配置"
     elif [ -f "$PROJECT_DIR/config.json" ]; then
         echo -e "  ${GREEN}✓${NC} config.json 已存在"
+    else
+        echo -e "  ${RED}✗${NC} 缺少 config.json 与 config.example.json"
+        return 1
     fi
 }
 
 # ── 主流程 ──
 main() {
-    step1_check_python || exit 1
+    step0_basics || exit 1
     echo ""
-    step2_check_uv || exit 1
+    step1_install_uv || exit 1
     echo ""
-    step3_sync_deps
+    step2_install_python || exit 1
+    echo ""
+    step3_sync_deps || exit 1
     echo ""
     step4_check_browser
     echo ""
-    step5_config_templates
+    step5_config_templates || exit 1
     echo ""
 
     echo -e "${CYAN}${BOLD}============================================${NC}"
@@ -225,19 +305,22 @@ main() {
     echo ""
 
     # 默认不限数量（--count 0），除非用户显式传参
+    local -a args
     if [ $# -eq 0 ]; then
         echo -e "${YELLOW}[*] 默认模式：不限数量，持续注册（Ctrl+C 停止）${NC}"
         echo ""
-        ARGS="--count 0"
+        args=(--count 0)
     else
-        ARGS="$*"
+        args=("$@")
     fi
 
-    if command -v mise &>/dev/null && [ -f "$PROJECT_DIR/mise.toml" ]; then
-        exec mise run register -- -- $ARGS
-    else
-        exec uv run python -u register_cli.py $ARGS
+    # 统一走 uv run，确保用项目 venv + 正确 Python
+    # mise 仅作可选加速；有 mise.toml 时先确保工具已装，仍用 uv 启动更稳
+    if have_cmd mise && [ -f "$PROJECT_DIR/mise.toml" ]; then
+        mise install >/dev/null 2>&1 || true
     fi
+
+    exec uv run --python 3.13 python -u register_cli.py "${args[@]}"
 }
 
-main "$@"
\ No newline at end of file
+main "$@"