diff --git a/fonts/RobotoMono-Regular.woff b/assets/fonts/RobotoMono-Regular.woff
similarity index 100%
rename from fonts/RobotoMono-Regular.woff
rename to assets/fonts/RobotoMono-Regular.woff
diff --git a/fonts/lato-black.woff b/assets/fonts/lato-black.woff
similarity index 100%
rename from fonts/lato-black.woff
rename to assets/fonts/lato-black.woff
diff --git a/fonts/lato-normal.woff b/assets/fonts/lato-normal.woff
similarity index 100%
rename from fonts/lato-normal.woff
rename to assets/fonts/lato-normal.woff
diff --git a/style.css b/assets/style.css
similarity index 100%
rename from style.css
rename to assets/style.css
diff --git a/kms-cli.php b/backend/kms-cli.php
similarity index 100%
rename from kms-cli.php
rename to backend/kms-cli.php
diff --git a/kms-help.php b/backend/kms-help.php
similarity index 93%
rename from kms-help.php
rename to backend/kms-help.php
index 76288aa..d167079 100644
--- a/kms-help.php
+++ b/backend/kms-help.php
@@ -26,13 +26,13 @@ function webHelp() {
     echo '<!DOCTYPE html><html><head><meta charset="utf-8">';
     echo '<meta name="viewport" content="width=device-width, initial-scale=1.0"><title>';
     echo 'Windows Activation';
-    echo '</title><link rel="stylesheet" href="./style.css" /></head>';
+    echo '</title><link rel="stylesheet" href="./assets/style.css" /></head>';
     echo '<body><div><h2>Windows KMS Activation</h2><pre>';
     echo '<code> slmgr /upk' . PHP_EOL;
     echo ' slmgr /ipk {KMS_KEY}' . PHP_EOL;
     echo ' slmgr /skms ' . $webSite . PHP_EOL;
     echo ' slmgr /ato' . PHP_EOL;
-    echo ' slmgr /dlv</code>';
+    echo ' slmgr /dlv </code>';
     echo '</pre><p><a href="';
     echo 'http://' . $webSite . '/win';
     echo '">KMS_KEY (Windows)</a><br><a href="';
diff --git a/kms-keys.db b/backend/kms-keys.db
similarity index 100%
rename from kms-keys.db
rename to backend/kms-keys.db
diff --git a/kms-keys.php b/backend/kms-keys.php
similarity index 100%
rename from kms-keys.php
rename to backend/kms-keys.php
diff --git a/kms-web.php b/backend/kms-web.php
similarity index 92%
rename from kms-web.php
rename to backend/kms-web.php
index 310f42c..f5dfff8 100644
--- a/kms-web.php
+++ b/backend/kms-web.php
@@ -8,7 +8,7 @@ function webKmsKeys($kmsKeys, $title) { // 网页显示KMS密钥
     echo '<!DOCTYPE html><html><head><meta charset="utf-8">';
     echo '<meta name="viewport" content="width=device-width, initial-scale=1.0"><title>';
     echo $title;
-    echo '</title><link rel="stylesheet" href="./style.css" /></head><body><div>';
+    echo '</title><link rel="stylesheet" href="./assets/style.css" /></head><body><div>';
     foreach ($kmsKeys as $versionName => $versionContent) {
         echo '<h2>' . $versionName . '</h2>';
         echo '<table><thead><tr><th>操作系统</th><th>KMS密钥</th></tr></thead><tbody>';
diff --git a/route.php b/backend/route.php
similarity index 100%
rename from route.php
rename to backend/route.php
