diff --git a/acme_3.0.sh b/acme_3.0.sh
new file mode 100644
index 0000000..2cf92e6
--- /dev/null
+++ b/acme_3.0.sh
@@ -0,0 +1,156 @@
+#!/bin/bash
+set -e
+
+# 主菜单
+while true; do
+    clear
+    echo "============== SSL证书管理菜单 =============="
+    echo "1）申请 SSL 证书"
+    echo "2）重置环境（清除申请记录并重新部署）"
+    echo "3）退出"
+    echo "============================================"
+    read -p "请输入选项（1-3）： " MAIN_OPTION
+
+    case $MAIN_OPTION in
+        1)
+            break
+            ;;
+        2)
+            echo "⚠️ 正在重置环境..."
+            rm -rf /tmp/acme
+            echo "✅ 已清空 /tmp/acme，准备重新部署。"
+            echo "📦 正在重新执行 acme.sh ..."
+            sleep 1
+            bash <(curl -fsSL https://raw.githubusercontent.com/slobys/SSL-Renewal/main/acme.sh)
+            exit 0
+            ;;
+        3)
+            echo "👋 已退出。"
+            exit 0
+            ;;
+        *)
+            echo "❌ 无效选项，请重新输入。"
+            sleep 1
+            continue
+            ;;
+    esac
+done
+
+# 用户输入参数
+read -p "请输入域名: " DOMAIN
+read -p "请输入电子邮件地址: " EMAIL
+
+echo "请选择证书颁发机构（CA）："
+echo "1）Let's Encrypt"
+echo "2）Buypass"
+echo "3）ZeroSSL"
+read -p "输入选项（1-3）： " CA_OPTION
+case $CA_OPTION in
+    1) CA_SERVER="letsencrypt" ;;
+    2) CA_SERVER="buypass" ;;
+    3) CA_SERVER="zerossl" ;;
+    *) echo "❌ 无效选项"; exit 1 ;;
+esac
+
+echo "是否关闭防火墙？"
+echo "1）是"
+echo "2）否"
+read -p "输入选项（1 或 2）：" FIREWALL_OPTION
+
+if [ "$FIREWALL_OPTION" -eq 2 ]; then
+    echo "是否放行特定端口？"
+    echo "1）是"
+    echo "2）否"
+    read -p "输入选项（1 或 2）：" PORT_OPTION
+    if [ "$PORT_OPTION" -eq 1 ]; then
+        read -p "请输入要放行的端口号: " PORT
+    fi
+else
+    PORT_OPTION=0
+fi
+
+# 检查系统类型
+if [ -f /etc/os-release ]; then
+    . /etc/os-release
+    OS=$ID
+else
+    echo "❌ 无法识别操作系统，请手动安装依赖。"
+    exit 1
+fi
+
+# 安装依赖项，配置防火墙
+case $OS in
+    ubuntu|debian)
+        sudo apt update -y
+        sudo apt upgrade -y
+        sudo apt install -y curl socat git cron
+        if [ "$FIREWALL_OPTION" -eq 1 ]; then
+            if command -v ufw >/dev/null 2>&1; then
+                sudo ufw disable
+            else
+                echo "⚠️ UFW 未安装，跳过关闭防火墙。"
+            fi
+        elif [ "$PORT_OPTION" -eq 1 ]; then
+            if command -v ufw >/dev/null 2>&1; then
+                sudo ufw allow $PORT
+            else
+                echo "⚠️ UFW 未安装，跳过端口放行。"
+            fi
+        fi
+        ;;
+    centos)
+        sudo yum update -y
+        sudo yum install -y curl socat git cronie
+        sudo systemctl start crond
+        sudo systemctl enable crond
+        if [ "$FIREWALL_OPTION" -eq 1 ]; then
+            sudo systemctl stop firewalld
+            sudo systemctl disable firewalld
+        elif [ "$PORT_OPTION" -eq 1 ]; then
+            sudo firewall-cmd --permanent --add-port=${PORT}/tcp
+            sudo firewall-cmd --reload
+        fi
+        ;;
+    *)
+        echo "❌ 不支持的操作系统：$OS"
+        exit 1
+        ;;
+esac
+
+# 安装 acme.sh（如未装）
+if ! command -v acme.sh >/dev/null 2>&1; then
+    curl https://get.acme.sh | sh
+    export PATH="$HOME/.acme.sh:$PATH"
+    ~/.acme.sh/acme.sh --upgrade
+fi
+
+# 注册账户
+~/.acme.sh/acme.sh --register-account -m $EMAIL --server $CA_SERVER
+
+# 申请证书
+if ! ~/.acme.sh/acme.sh --issue --standalone -d $DOMAIN --server $CA_SERVER; then
+    echo "❌ 证书申请失败，正在清理。"
+    rm -f /root/${DOMAIN}.key /root/${DOMAIN}.crt
+    ~/.acme.sh/acme.sh --remove -d $DOMAIN
+    rm -rf ~/.acme.sh/${DOMAIN}
+    exit 1
+fi
+
+# 安装证书
+~/.acme.sh/acme.sh --installcert -d $DOMAIN \
+    --key-file       /root/${DOMAIN}.key \
+    --fullchain-file /root/${DOMAIN}.crt
+
+# 自动续期脚本
+cat << EOF > /root/renew_cert.sh
+#!/bin/bash
+export PATH="\$HOME/.acme.sh:\$PATH"
+acme.sh --renew -d $DOMAIN --server $CA_SERVER
+EOF
+chmod +x /root/renew_cert.sh
+(crontab -l 2>/dev/null; echo "0 0 * * * /root/renew_cert.sh > /dev/null 2>&1") | crontab -
+
+# 完成提示
+echo "✅ SSL证书申请完成！"
+echo "📄 证书路径: /root/${DOMAIN}.crt"
+echo "🔐 私钥路径: /root/${DOMAIN}.key"