diff --git a/prisma/seed.js b/prisma/seed.js
index f5a8fea..61b20cb 100644
--- a/prisma/seed.js
+++ b/prisma/seed.js
@@ -180,7 +180,6 @@ async function upsertCategories() {
     { name: "메인", slug: "main", sortOrder: 1, status: "active" },
     { name: "명예의 전당", slug: "hall-of-fame", sortOrder: 2, status: "active" },
     { name: "소통방", slug: "community", sortOrder: 3, status: "active" },
-    { name: "TEST", slug: "test", sortOrder: 4, status: "active" },
   ];
   const map = {};
   for (const c of categories) {
@@ -352,15 +351,12 @@ async function upsertBoards(admin, categoryMap) {
     { name: "회원랭킹", slug: "ranking", description: "랭킹", sortOrder: 14 },
     { name: "무료쿠폰", slug: "free-coupons", description: "쿠폰", sortOrder: 15 },
     { name: "월간집계", slug: "monthly-stats", description: "월간 통계", sortOrder: 16 },
-    // TEST
-    { name: "TEST", slug: "test", description: "테스트 게시판", sortOrder: 20 },
     // 광고/제휴 계열 게시판은 제거(메인/명예의전당/소통방 외)
   ];
 
   const created = [];
   // 텍스트/특수랭킹/특수출석 뷰 타입 ID 조회 (사전에 upsertViewTypes로 생성됨)
   const mainText = await prisma.boardViewType.findUnique({ where: { key: "main_text" } });
-  const mainPreview = await prisma.boardViewType.findUnique({ where: { key: "main_preview" } });
   const listText = await prisma.boardViewType.findUnique({ where: { key: "list_text" } });
   const mainSpecial = await prisma.boardViewType.findUnique({ where: { key: "main_special_rank" } });
   const listSpecial = await prisma.boardViewType.findUnique({ where: { key: "list_special_rank" } });
@@ -384,8 +380,6 @@ async function upsertBoards(admin, categoryMap) {
       qna: "community",
       tips: "community",
       anonymous: "community",
-      // TEST
-      test: "test",
       // 광고/제휴
     };
     const categorySlug = mapBySlug[b.slug] || "community";
@@ -404,7 +398,6 @@ async function upsertBoards(admin, categoryMap) {
         ...(b.slug === "ranking" && mainSpecial ? { mainPageViewTypeId: mainSpecial.id } : {}),
         ...(b.slug === "ranking" && listSpecial ? { listViewTypeId: listSpecial.id } : {}),
         ...(b.slug === "attendance" && listSpecialAttendance ? { listViewTypeId: listSpecialAttendance.id } : {}),
-        ...(b.slug === "test" && mainPreview ? { mainPageViewTypeId: mainPreview.id } : {}),
       },
       create: {
         name: b.name,
@@ -420,7 +413,6 @@ async function upsertBoards(admin, categoryMap) {
         ...(b.slug === "ranking" && mainSpecial ? { mainPageViewTypeId: mainSpecial.id } : {}),
         ...(b.slug === "ranking" && listSpecial ? { listViewTypeId: listSpecial.id } : {}),
         ...(b.slug === "attendance" && listSpecialAttendance ? { listViewTypeId: listSpecialAttendance.id } : {}),
-        ...(b.slug === "test" && mainPreview ? { mainPageViewTypeId: mainPreview.id } : {}),
       },
     });
     created.push(board);
@@ -567,7 +559,7 @@ async function seedMainpageVisibleBoards(boards) {
   const SETTINGS_KEY = "mainpage_settings";
   const setting = await prisma.setting.findUnique({ where: { key: SETTINGS_KEY } });
   const current = setting ? JSON.parse(setting.value) : {};
-  const wantSlugs = new Set(["notice", "free", "ranking", "test"]);
+  const wantSlugs = new Set(["notice", "free", "ranking"]);
   const visibleBoardIds = boards.filter((b) => wantSlugs.has(b.slug)).map((b) => b.id);
   const next = { ...current, visibleBoardIds };
   await prisma.setting.upsert({
diff --git a/src/app/components/HorizontalCardScroller.tsx b/src/app/components/HorizontalCardScroller.tsx
index eb6f547..9514faf 100644
--- a/src/app/components/HorizontalCardScroller.tsx
+++ b/src/app/components/HorizontalCardScroller.tsx
@@ -148,7 +148,7 @@ export default function HorizontalCardScroller({ items }: HorizontalCardScroller
         </div>
       </div>
 
-      <div className="pointer-events-none absolute bottom-[-5px] left-1/2 -translate-x-1/2 z-20 flex items-center gap-6 w-full">
+      <div className="pointer-events-none absolute bottom-[-5px] left-1/2 -translate-x-1/2 z-20 flex items-center justify-center gap-6 w-full">
         <button
           type="button"
           aria-label="이전"