diff --git a/src/db.rs b/src/db.rs
index 91dc8d6..9be64ca 100644
--- a/src/db.rs
+++ b/src/db.rs
@@ -9,25 +9,31 @@ use crate::error::AppError;
 
 // 用于插入weather_data的数据
 pub async fn insert_weather_data(pool: &PgPool, weather_data: &WeatherData, user_id: i32) -> Result<i32, AppError> {
-    // 维护模式：跳过所有配额检查
+    // 配额检查：非付费用户数据条数限制
+    let user = get_user_by_id(pool, user_id).await?;
+    let is_paid_active = user.is_paid && user.paid_expires_at.map_or(true, |expires| expires > Utc::now());
+
+    // 维护模式：非会员使用更高的临时限额，防止资源滥用
     let is_maintenance = std::env::var("PAYMENT_MAINTENANCE_MODE").ok() == Some("true".to_string());
-    if !is_maintenance {
-        // 配额检查：非付费用户数据条数限制
-        let user = get_user_by_id(pool, user_id).await?;
-        let is_paid_active = user.is_paid && user.paid_expires_at.map_or(true, |expires| expires > Utc::now());
-        
-        if !is_paid_active {
+
+    if !is_paid_active {
         let current_count = count_user_weather_data(pool, user_id).await?;
-        let limit: i64 = env::var("FREE_USER_DATA_LIMIT")
-            .unwrap_or_else(|_| "20".to_string())
-            .parse()
-            .unwrap_or(20);
+        let limit: i64 = if is_maintenance {
+            env::var("MAINTENANCE_MODE_DATA_LIMIT")
+                .unwrap_or_else(|_| "500".to_string())
+                .parse()
+                .unwrap_or(500)
+        } else {
+            env::var("FREE_USER_DATA_LIMIT")
+                .unwrap_or_else(|_| "20".to_string())
+                .parse()
+                .unwrap_or(20)
+        };
         
         if current_count >= limit {
             return Err(AppError::Forbidden("数据条数已达上限，请升级为付费用户".to_string()));
         }
     }
-    }
 
     // 准备插入数据的 SQL 语句
     let insert_query = r#"
diff --git a/src/handlers/payment.rs b/src/handlers/payment.rs
index 33d779f..c4bfd9d 100644
--- a/src/handlers/payment.rs
+++ b/src/handlers/payment.rs
@@ -1073,17 +1073,22 @@ pub async fn get_user_quota(
 
     let (used, is_paid_active, paid_expires_at) =
         db::get_user_quota(pool.get_ref(), user_id).await?;
-    let limit: i64 = std::env::var("FREE_USER_DATA_LIMIT")
-        .ok()
-        .and_then(|v| v.parse().ok())
-        .unwrap_or(20);
 
-    let (unlimited, active) = if is_maintenance {
-        (true, true)
+    // 维护模式使用更高的临时限额，但非会员仍然有限制防止滥用
+    let (limit, unlimited) = if is_maintenance && !is_paid_active {
+        let ml: i64 = std::env::var("MAINTENANCE_MODE_DATA_LIMIT")
+            .ok().and_then(|v| v.parse().ok()).unwrap_or(500);
+        (ml, false)
+    } else if is_paid_active {
+        (0, true)
     } else {
-        (is_paid_active, is_paid_active)
+        let fl: i64 = std::env::var("FREE_USER_DATA_LIMIT")
+            .ok().and_then(|v| v.parse().ok()).unwrap_or(20);
+        (fl, false)
     };
 
+    let active = if is_maintenance { true } else { is_paid_active };
+
     Ok(HttpResponse::Ok().json(serde_json::json!({
         "success": true,
         "data": {