diff --git a/v3/src/pages/ar/pricing.astro b/v3/src/pages/ar/pricing.astro
index 5fe7e5f..b7d5371 100644
--- a/v3/src/pages/ar/pricing.astro
+++ b/v3/src/pages/ar/pricing.astro
@@ -35,7 +35,17 @@ const metadata = {
           cancelButtonText: 'لا',
         }).then((result) => {
           if (result.isConfirmed) {
-            window.open(redirectUrl, '_blank');
+            try {
+              const url = new URL(redirectUrl);
+              const pageParams = new URLSearchParams(window.location.search);
+              pageParams.forEach((value, key) => {
+                if (!url.searchParams.has(key)) url.searchParams.append(key, value);
+              });
+              window.open(url.toString(), '_blank');
+            } catch (e) {
+              const qs = window.location.search ? (redirectUrl.includes('?') ? '&' : '?') + window.location.search.slice(1) : '';
+              window.open(redirectUrl + qs, '_blank');
+            }
           }
         });
       }
diff --git a/v3/src/pages/de/pricing.astro b/v3/src/pages/de/pricing.astro
index 1548efc..057afea 100644
--- a/v3/src/pages/de/pricing.astro
+++ b/v3/src/pages/de/pricing.astro
@@ -35,7 +35,17 @@ const metadata = {
           cancelButtonText: 'Nein',
         }).then((result) => {
           if (result.isConfirmed) {
-            window.open(redirectUrl, '_blank');
+            try {
+              const url = new URL(redirectUrl);
+              const pageParams = new URLSearchParams(window.location.search);
+              pageParams.forEach((value, key) => {
+                if (!url.searchParams.has(key)) url.searchParams.append(key, value);
+              });
+              window.open(url.toString(), '_blank');
+            } catch (e) {
+              const qs = window.location.search ? (redirectUrl.includes('?') ? '&' : '?') + window.location.search.slice(1) : '';
+              window.open(redirectUrl + qs, '_blank');
+            }
           }
         });
       }
diff --git a/v3/src/pages/es/pricing.astro b/v3/src/pages/es/pricing.astro
index 41e3f0f..5664136 100644
--- a/v3/src/pages/es/pricing.astro
+++ b/v3/src/pages/es/pricing.astro
@@ -35,7 +35,17 @@ const metadata = {
           cancelButtonText: 'No',
         }).then((result) => {
           if (result.isConfirmed) {
-            window.open(redirectUrl, '_blank');
+            try {
+              const url = new URL(redirectUrl);
+              const pageParams = new URLSearchParams(window.location.search);
+              pageParams.forEach((value, key) => {
+                if (!url.searchParams.has(key)) url.searchParams.append(key, value);
+              });
+              window.open(url.toString(), '_blank');
+            } catch (e) {
+              const qs = window.location.search ? (redirectUrl.includes('?') ? '&' : '?') + window.location.search.slice(1) : '';
+              window.open(redirectUrl + qs, '_blank');
+            }
           }
         });
       }
diff --git a/v3/src/pages/fr/pricing.astro b/v3/src/pages/fr/pricing.astro
index 66aab9e..0b169b5 100644
--- a/v3/src/pages/fr/pricing.astro
+++ b/v3/src/pages/fr/pricing.astro
@@ -35,7 +35,17 @@ const metadata = {
           cancelButtonText: 'Non',
         }).then((result) => {
           if (result.isConfirmed) {
-            window.open(redirectUrl, '_blank');
+            try {
+              const url = new URL(redirectUrl);
+              const pageParams = new URLSearchParams(window.location.search);
+              pageParams.forEach((value, key) => {
+                if (!url.searchParams.has(key)) url.searchParams.append(key, value);
+              });
+              window.open(url.toString(), '_blank');
+            } catch (e) {
+              const qs = window.location.search ? (redirectUrl.includes('?') ? '&' : '?') + window.location.search.slice(1) : '';
+              window.open(redirectUrl + qs, '_blank');
+            }
           }
         });
       }
diff --git a/v3/src/pages/it/pricing.astro b/v3/src/pages/it/pricing.astro
index 3db6eeb..6b098a1 100644
--- a/v3/src/pages/it/pricing.astro
+++ b/v3/src/pages/it/pricing.astro
@@ -35,7 +35,17 @@ const metadata = {
           cancelButtonText: 'No',
         }).then((result) => {
           if (result.isConfirmed) {
-            window.open(redirectUrl, '_blank');
+            try {
+              const url = new URL(redirectUrl);
+              const pageParams = new URLSearchParams(window.location.search);
+              pageParams.forEach((value, key) => {
+                if (!url.searchParams.has(key)) url.searchParams.append(key, value);
+              });
+              window.open(url.toString(), '_blank');
+            } catch (e) {
+              const qs = window.location.search ? (redirectUrl.includes('?') ? '&' : '?') + window.location.search.slice(1) : '';
+              window.open(redirectUrl + qs, '_blank');
+            }
           }
         });
       }
diff --git a/v3/src/pages/ja/pricing.astro b/v3/src/pages/ja/pricing.astro
index f396c1f..6a041ef 100644
--- a/v3/src/pages/ja/pricing.astro
+++ b/v3/src/pages/ja/pricing.astro
@@ -35,7 +35,17 @@ const metadata = {
           cancelButtonText: 'いいえ',
         }).then((result) => {
           if (result.isConfirmed) {
-            window.open(redirectUrl, '_blank');
+            try {
+              const url = new URL(redirectUrl);
+              const pageParams = new URLSearchParams(window.location.search);
+              pageParams.forEach((value, key) => {
+                if (!url.searchParams.has(key)) url.searchParams.append(key, value);
+              });
+              window.open(url.toString(), '_blank');
+            } catch (e) {
+              const qs = window.location.search ? (redirectUrl.includes('?') ? '&' : '?') + window.location.search.slice(1) : '';
+              window.open(redirectUrl + qs, '_blank');
+            }
           }
         });
       }
diff --git a/v3/src/pages/ko/pricing.astro b/v3/src/pages/ko/pricing.astro
index f645a26..e5cac6e 100644
--- a/v3/src/pages/ko/pricing.astro
+++ b/v3/src/pages/ko/pricing.astro
@@ -35,7 +35,17 @@ const metadata = {
           cancelButtonText: '아니오',
         }).then((result) => {
           if (result.isConfirmed) {
-            window.open(redirectUrl, '_blank');
+            try {
+              const url = new URL(redirectUrl);
+              const pageParams = new URLSearchParams(window.location.search);
+              pageParams.forEach((value, key) => {
+                if (!url.searchParams.has(key)) url.searchParams.append(key, value);
+              });
+              window.open(url.toString(), '_blank');
+            } catch (e) {
+              const qs = window.location.search ? (redirectUrl.includes('?') ? '&' : '?') + window.location.search.slice(1) : '';
+              window.open(redirectUrl + qs, '_blank');
+            }
           }
         });
       }
diff --git a/v3/src/pages/pricing.astro b/v3/src/pages/pricing.astro
index 2ef42fc..9fd2997 100644
--- a/v3/src/pages/pricing.astro
+++ b/v3/src/pages/pricing.astro
@@ -35,7 +35,18 @@ const metadata = {
           cancelButtonText: 'No',
         }).then((result) => {
           if (result.isConfirmed) {
-            window.open(redirectUrl, '_blank');
+            try {
+              const url = new URL(redirectUrl);
+              const pageParams = new URLSearchParams(window.location.search);
+              pageParams.forEach((value, key) => {
+                if (!url.searchParams.has(key)) url.searchParams.append(key, value);
+              });
+              window.open(url.toString(), '_blank');
+            } catch (e) {
+              // Fallback if URL API fails for any reason
+              const qs = window.location.search ? (redirectUrl.includes('?') ? '&' : '?') + window.location.search.slice(1) : '';
+              window.open(redirectUrl + qs, '_blank');
+            }
           }
         });
       }
diff --git a/v3/src/pages/pt/pricing.astro b/v3/src/pages/pt/pricing.astro
index 80d59d8..a15e45f 100644
--- a/v3/src/pages/pt/pricing.astro
+++ b/v3/src/pages/pt/pricing.astro
@@ -35,7 +35,19 @@ const metadata = {
           cancelButtonText: 'Não',
         }).then((result) => {
           if (result.isConfirmed) {
-            window.open(redirectUrl, '_blank');
+            try {
+              const url = new URL(redirectUrl);
+              const pageParams = new URLSearchParams(window.location.search);
+              pageParams.forEach((value, key) => {
+                if (!url.searchParams.has(key)) url.searchParams.append(key, value);
+              });
+              window.open(url.toString(), '_blank');
+            } catch (e) {
+              const qs = window.location.search
+                ? (redirectUrl.includes('?') ? '&' : '?') + window.location.search.slice(1)
+                : '';
+              window.open(redirectUrl + qs, '_blank');
+            }
           }
         });
       }
diff --git a/v3/src/pages/zh-cn/pricing.astro b/v3/src/pages/zh-cn/pricing.astro
index 262d4d0..270e406 100644
--- a/v3/src/pages/zh-cn/pricing.astro
+++ b/v3/src/pages/zh-cn/pricing.astro
@@ -37,7 +37,22 @@ const metadata = {
           cancelButtonText: '否',
         }).then((result) => {
           if (result.isConfirmed) {
-            window.open(redirectUrl + '&currency=cny', '_blank');
+            try {
+              const url = new URL(redirectUrl);
+              // Ensure currency=cny for zh-cn
+              if (!url.searchParams.has('currency')) url.searchParams.set('currency', 'cny');
+              const pageParams = new URLSearchParams(window.location.search);
+              pageParams.forEach((value, key) => {
+                if (!url.searchParams.has(key)) url.searchParams.append(key, value);
+              });
+              window.open(url.toString(), '_blank');
+            } catch (e) {
+              const qs = window.location.search
+                ? (redirectUrl.includes('?') ? '&' : '?') + window.location.search.slice(1)
+                : '';
+              const sep = (redirectUrl + qs).includes('?') ? '&' : '?';
+              window.open(redirectUrl + qs + sep + 'currency=cny', '_blank');
+            }
           }
         });
       }
diff --git a/v3/src/pages/zh-tw/pricing.astro b/v3/src/pages/zh-tw/pricing.astro
index ab9ffde..fb4a4cc 100644
--- a/v3/src/pages/zh-tw/pricing.astro
+++ b/v3/src/pages/zh-tw/pricing.astro
@@ -35,7 +35,17 @@ const metadata = {
           cancelButtonText: '否',
         }).then((result) => {
           if (result.isConfirmed) {
-            window.open(redirectUrl, '_blank');
+            try {
+              const url = new URL(redirectUrl);
+              const pageParams = new URLSearchParams(window.location.search);
+              pageParams.forEach((value, key) => {
+                if (!url.searchParams.has(key)) url.searchParams.append(key, value);
+              });
+              window.open(url.toString(), '_blank');
+            } catch (e) {
+              const qs = window.location.search ? (redirectUrl.includes('?') ? '&' : '?') + window.location.search.slice(1) : '';
+              window.open(redirectUrl + qs, '_blank');
+            }
           }
         });
       }