diff --git a/assets/css/album.css b/assets/css/album.css
index f508700..f8a8db8 100644
--- a/assets/css/album.css
+++ b/assets/css/album.css
@@ -124,7 +124,7 @@ body {
     object-fit: cover;
 }
 
-/* 较宽图片布局 (1.2 < ratio ≤ 1.5) */
+/* 较宽图片布局 (1.3 < ratio ≤ 1.5) */
 .image-item.wide { 
     grid-column: span 1;
 }
@@ -136,7 +136,7 @@ body {
     object-fit: cover;
 }
 
-/* 较高图片布局 (0.83 ≤ ratio < 1.2) */
+/* 较高图片布局 (0.83 ≤ ratio < 1.3) */
 .image-item.tall { 
     grid-column: span 1;
 }
diff --git a/migrations/001_initial.sql b/migrations/001_initial.sql
index 5b4bdf8..65e1707 100644
--- a/migrations/001_initial.sql
+++ b/migrations/001_initial.sql
@@ -6,8 +6,7 @@ CREATE TABLE IF NOT EXISTS albums (
     description TEXT,
     cover_image_id TEXT,
     created_at DATETIME NOT NULL,
-    updated_at DATETIME NOT NULL,
-    FOREIGN KEY (cover_image_id) REFERENCES images(id)
+    updated_at DATETIME NOT NULL
 );
 
 -- 创建图片表