diff --git a/code/app/common/helper/SiteStyle.php b/code/app/common/helper/SiteStyle.php
index ae5d89d..e14e4b7 100644
--- a/code/app/common/helper/SiteStyle.php
+++ b/code/app/common/helper/SiteStyle.php
@@ -42,7 +42,7 @@ class SiteStyle
     {
         static $arrReqCache = [];
 
-        if (empty($strHost)) {
+        if (empty($strHost) || $strHost == null) {
             $strHost = self::resolveHost();
         }
 
@@ -173,7 +173,7 @@ class SiteStyle
             && (int)($arrCfg['meta']['version'] ?? 0) === self::CFG_VERSION
         ) {
             if (self::useCache()) {
-                Cache::set($strCacheKey, $arrCfg, 86400 * 7);
+                Cache::set($strCacheKey, $arrCfg, 86400 * 3);
             }
             return $arrCfg;
         }
@@ -185,7 +185,7 @@ class SiteStyle
         self::writeLocalJson($strHost, $arrCfg);
 
         if (self::useCache()) {
-            Cache::set($strCacheKey, $arrCfg, 86400 * 30);
+            Cache::set($strCacheKey, $arrCfg, 86400 * 3);
         }
 
         return $arrCfg;