diff --git a/src/main/java/Sdf1_login/ConfigManager.java b/src/main/java/Sdf1_login/ConfigManager.java
index 82261c2..7889ce9 100644
--- a/src/main/java/Sdf1_login/ConfigManager.java
+++ b/src/main/java/Sdf1_login/ConfigManager.java
@@ -437,6 +437,62 @@ public class ConfigManager {
         cnNum.put("六", 6); cnNum.put("陆", 6); cnNum.put("七", 7); cnNum.put("漆", 7); cnNum.put("八", 8); cnNum.put("捌", 8);
         cnNum.put("九", 9); cnNum.put("玖", 9);
         
+        // 中文数字转阿拉伯数字：逐字扫描法
+        // 支持：一百二十、三千五百、十二万三千四百五十六
+        // 单位：十(10)、百(100)、千(1000)、万(10000)
+        boolean hasChineseDigit = false;
+        for (char c : s.toCharArray()) {
+            if (cnNum.containsKey(String.valueOf(c))) {
+                hasChineseDigit = true;
+                break;
+            }
+        }
+        if (hasChineseDigit) {
+            int total = 0;
+            int current = 0;
+            boolean hasUnit = false;
+            for (int i = 0; i < s.length(); i++) {
+                String ch = String.valueOf(s.charAt(i));
+                Integer digit = cnNum.get(ch);
+                if (digit != null) {
+                    current = digit;
+                    hasUnit = false;
+                } else if (ch.equals("十")) {
+                    if (current == 0) current = 1; // 十二 → 12
+                    total += current * 10;
+                    current = 0;
+                    hasUnit = true;
+                } else if (ch.equals("百")) {
+                    if (current == 0) current = 1;
+                    total += current * 100;
+                    current = 0;
+                    hasUnit = true;
+                } else if (ch.equals("千")) {
+                    if (current == 0) current = 1;
+                    total += current * 1000;
+                    current = 0;
+                    hasUnit = true;
+                } else if (ch.equals("万")) {
+                    if (current == 0) current = 1;
+                    total += current * 10000;
+                    current = 0;
+                    hasUnit = true;
+                } else if (ch.equals("秒") || ch.equals("分") || ch.equals("钟")) {
+                    // 单位字符，跳过
+                    continue;
+                }
+            }
+            total += current; // 加上最后剩余的数字
+            // 如果有单位（秒/分钟），根据单位决定返回秒还是分钟
+            if (s.contains("秒")) {
+                return total;
+            } else if (s.contains("分") || s.contains("钟")) {
+                return total * 60;
+            } else {
+                return total; // 默认当作秒
+            }
+        }
+        
         // 罗马数字映射（简单支持）
         java.util.Map<Character, Integer> romanNum = new java.util.HashMap<>();
         romanNum.put('I', 1); romanNum.put('V', 5); romanNum.put('X', 10); romanNum.put('L', 50); romanNum.put('C', 100);
diff --git a/src/main/java/Sdf1_login/UserGroupManager.java b/src/main/java/Sdf1_login/UserGroupManager.java
index 946a408..a4671bb 100644
--- a/src/main/java/Sdf1_login/UserGroupManager.java
+++ b/src/main/java/Sdf1_login/UserGroupManager.java
@@ -333,7 +333,8 @@ public class UserGroupManager {
 
         if (cfg.joinPrice <= 0) return "该用户组不开放付费加入";
 
-        if (cfg.durationMinutes <= 0) return "该用户组配置异常（有效时长未设置）";
+        // durationMinutes <= 0 表示永久（expiry_time=0）
+        // 不再报错，允许购买永久用户组
 
         // 检查是否已在组内（有效期内）
         if (isPlayerInGroup(player, groupName)) {
@@ -365,7 +366,12 @@ public class UserGroupManager {
 
         // 计算到期时间
         long now = System.currentTimeMillis();
-        long expiryTime = now + (long) cfg.durationMinutes * 60 * 1000;
+        long expiryTime;
+        if (cfg.durationMinutes <= 0) {
+            expiryTime = 0; // 永久
+        } else {
+            expiryTime = now + (long) cfg.durationMinutes * 60 * 1000;
+        }
 
         // 加入组
         String err = addPlayerWithExpiry(player, groupName, "paid_join", expiryTime);
@@ -432,8 +438,13 @@ public class UserGroupManager {
         if (!deducted) return "扣费失败，请稍后重试";
 
         // 延长到期时间：从当前到期时间往后延（如果已过期则从当前时间开始）
-        long baseTime = (currentExpiry > now) ? currentExpiry : now;
-        long newExpiry = baseTime + (long) cfg.durationMinutes * 60 * 1000;
+        long newExpiry;
+        if (cfg.durationMinutes <= 0) {
+            newExpiry = 0; // 永久
+        } else {
+            long baseTime = (currentExpiry > now) ? currentExpiry : now;
+            newExpiry = baseTime + (long) cfg.durationMinutes * 60 * 1000;
+        }
 
         try {
             PreparedStatement ps = db.prepareStatement(