diff --git a/src/components/LicenseStatus.vue b/src/components/LicenseStatus.vue
index 43c453e..f3975cb 100644
--- a/src/components/LicenseStatus.vue
+++ b/src/components/LicenseStatus.vue
@@ -9,7 +9,11 @@
         <template v-if="!licenseDisplayInfo.isPaid">
           <button class="action-btn" @click="refreshLicenseStatus" :disabled="checking" ref="checkButton">{{ $t('license.button.checkLicense.label') }}</button>
           <kuc-tooltip :title="$t('license.button.checkLicense.desc')" :container="checkButton"></kuc-tooltip>
-          <button class="action-btn main" @click="purchaseLicense" ref="buyButton">{{ $t('license.button.purchase.label') }}</button>
+          <button class="action-btn main" @click="purchaseLicense" ref="buyButton">{{ $t('license.button.purchase.label') }}
+            <svg width="14" height="14" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg" class="open-icon">
+              <path d="M10 6H6a2 2 0 00-2 2v10a2 2 0 002 2h10a2 2 0 002-2v-4M14 4h6m0 0v6m0-6L10 14" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
+            </svg>
+          </button>
           <kuc-tooltip :title="$t('license.button.purchase.desc')" :container="buyButton"></kuc-tooltip>
         </template>
         <button v-else class="action-btn" @click="hidePaidMsg">{{ $t('license.button.hide') }}</button>
@@ -134,9 +138,10 @@ async function refreshLicenseStatus() {
 }
 
 function purchaseLicense() {
-  alert(
-    `请联系管理员或访问官方网站购买许可证。\nDomain: ${licenseInfo.value?.domain}\nPlugin: ${licenseInfo.value?.pluginId}`,
-  );
+  const { name, email } = kintone.getLoginUser();
+  const domain = licenseInfo.value?.domain;
+  const pluginId = licenseInfo.value?.pluginId;
+  window.open(`https://alisurvey.alicorns.co.jp/s/Iuc5RxZv?input1761283180784=${domain}&input1761283200616=${pluginId}&input1761283314263=${name}&input1761283275767=${email}`);
 }
 
 function hidePaidMsg() {
diff --git a/src/css/license.css b/src/css/license.css
index 1210523..5ef0c5c 100644
--- a/src/css/license.css
+++ b/src/css/license.css
@@ -70,14 +70,19 @@
   border-color: #33691E;
 }
 
+.license-status-info .action-btn .open-icon {
+  margin-left: 2px;
+  vertical-align: middle;
+}
+
 .notification-link {
   color: #fff;
-  opacity: 0.8;
   text-decoration: underline;
 }
 
 .notification-link:hover {
-  opacity: 1;
+  color: #fff;
+  opacity: 0.8;
 }
 
 .text-red {
diff --git a/src/i18n/lang/en.ts b/src/i18n/lang/en.ts
index 6cebda0..6e29c9e 100644
--- a/src/i18n/lang/en.ts
+++ b/src/i18n/lang/en.ts
@@ -54,7 +54,8 @@ export default {
     },
     error: {
       fetchFailed: 'Remote license check failed: {e}',
-      checkFailed: 'License check failed, plugin disabled: {e}'
+      checkFailed: 'License check failed, plugin disabled: {e}',
+      jwtFailed: 'JWT verification or parsing failed: {e}',
     }
   },
 };
diff --git a/src/i18n/lang/ja.ts b/src/i18n/lang/ja.ts
index 1c39c66..778be74 100644
--- a/src/i18n/lang/ja.ts
+++ b/src/i18n/lang/ja.ts
@@ -42,7 +42,7 @@ export default {
     },
     notification: {
       days: '今日 | 明日 | {count}日後',
-      gotoLink: 'ご利用には<a class="notification-link" href="{link}">「プラグインの設定」</a>をご確認ください。',
+      gotoLink: 'ご利用には「<a class="notification-link" href="{link}">プラグインの設定</a>」をご確認ください。',
       expired: 'プラグイン「{plugin}」の有効期限が切れました。',
       warning: 'プラグイン「{plugin}」の試用期間が{days}で終了します。'
     },
@@ -57,7 +57,8 @@ export default {
     },
     error: {
       fetchFailed: 'リモートライセンスチェックに失敗しました: {e}',
-      checkFailed: 'ライセンスチェックに失敗しました。プラグイン機能が無効になりました: {e}'
+      checkFailed: 'ライセンスチェックに失敗しました。プラグイン機能が無効になりました: {e}',
+      jwtFailed: 'JWTの検証または解析に失敗しました: {e}',
     }
   },
 };
diff --git a/src/services/license-service.ts b/src/services/license-service.ts
index 3fdef8c..0d83371 100644
--- a/src/services/license-service.ts
+++ b/src/services/license-service.ts
@@ -51,11 +51,11 @@ export class LicenseService {
       // 验证完整的JWT
       const result = KJUR.jws.JWS.verifyJWT(savedLicense.jwt, rsaPublicKey.trim(), {alg: ['RS256']});
       if (!result) {
-        console.warn('JWT signature verification failed');
+        console.warn($t('license.error.jwtFailed', { e : '' }));
         return false;
       }
     } catch (error) {
-      console.error('JWT verification or parsing failed:', error);
+      console.warn($t('license.error.jwtFailed', { e : error }));
       return false;
     }
 
diff --git a/src/utils/license-storage.ts b/src/utils/license-storage.ts
index e9986eb..edd3867 100644
--- a/src/utils/license-storage.ts
+++ b/src/utils/license-storage.ts
@@ -1,24 +1,12 @@
 // 本地存储加密工具类
 import { LicenseService } from '@/services/license-service';
-import type { LicenseInfo, LicenseJWSResult, LicenseSetting, SavedLicense } from '@/types/license';
+import type { LicenseJWSResult, LicenseSetting, SavedLicense } from '@/types/license';
 import { KJUR } from 'jsrsasign';
 
 export class LicenseStorage {
   private static readonly STORAGE_KEY_PREFIX = 'alicorns_plugin_';
   private static readonly STORAGE_SETTING_KEY_PREFIX = this.STORAGE_KEY_PREFIX + 'setting_';
 
-  /**
-   * 解码JWT（不验证）
-   */
-  private static parseJWT(jwt: string) {
-    try {
-      return KJUR.jws.JWS.parse(jwt);
-    } catch (error) {
-      console.error('JWT parsing failed:', error);
-      return null;
-    }
-  }
-
   /**
    * 生成存储key
    */
@@ -89,7 +77,7 @@ export class LicenseStorage {
     // decode
     let decodedJWT: LicenseJWSResult;
     try {
-      decodedJWT = this.parseJWT(storedJWT) as LicenseJWSResult;
+      decodedJWT = KJUR.jws.JWS.parse(storedJWT) as LicenseJWSResult;
       if (!decodedJWT) {
         return null;
       }