diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
new file mode 100644
index 0000000..a801e5b
--- /dev/null
+++ b/.gitea/workflows/ci.yml
@@ -0,0 +1,104 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+      - feature/**
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+
+      - name: Install dependencies
+        run: |
+          npm ci
+
+      - name: Run unit tests
+        run: |
+          npm test
+
+      - name: Install Playwright browsers
+        run: |
+          npx playwright install --with-deps
+
+      - name: Run Playwright E2E tests
+        run: |
+          npx playwright test
+
+  pr_and_merge:
+    needs: test
+    # feature/* 브랜치에 push 되었을 때만 실행한다.
+    if: ${{ startsWith(github.ref, 'refs/heads/feature/') }}
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Create or update PR and try auto-merge
+        env:
+          CI_BASE_URL: ${{ secrets.CI_BASE_URL }}
+          CI_TOKEN: ${{ secrets.CI_TOKEN }}
+          CI_OWNER: ${{ secrets.CI_OWNER }}
+          CI_REPO: ${{ secrets.CI_REPO }}
+          BRANCH_REF: ${{ github.ref }}
+          BRANCH_NAME: ${{ github.ref_name }}
+        run: |
+          set -e
+
+          if [ -z "$CI_BASE_URL" ] || [ -z "$CI_TOKEN" ] || [ -z "$CI_OWNER" ] || [ -z "$CI_REPO" ]; then
+            echo "CI_* 시크릿이 설정되지 않아 PR/자동 머지를 건너뜁니다." >&2
+            exit 0
+          fi
+
+          echo "현재 브랜치: $BRANCH_NAME ($BRANCH_REF)"
+
+          # 1) PR 생성 시도 (이미 존재하면 4xx를 허용)
+          create_pr_payload=$(jq -n \
+            --arg title "CI: $BRANCH_NAME" \
+            --arg head "$BRANCH_NAME" \
+            --arg base "main" \
+            '{title: $title, head: $head, base: $base}')
+
+          echo "PR 생성 시도..."
+          curl -sS -X POST \
+            -H "Content-Type: application/json" \
+            -H "Authorization: token $CI_TOKEN" \
+            "$CI_BASE_URL/api/v1/repos/$CI_OWNER/$CI_REPO/pulls" \
+            -d "$create_pr_payload" || true
+
+          # 2) 열린 PR 목록에서 해당 브랜치의 PR 번호를 찾는다.
+          echo "열린 PR 목록 조회..."
+          pr_list=$(curl -sS \
+            -H "Authorization: token $CI_TOKEN" \
+            "$CI_BASE_URL/api/v1/repos/$CI_OWNER/$CI_REPO/pulls?state=open")
+
+          pr_number=$(echo "$pr_list" | jq ".[] | select(.head.ref == \"$BRANCH_NAME\") | .number" | head -n 1)
+
+          if [ -z "$pr_number" ]; then
+            echo "브랜치 $BRANCH_NAME 에 대한 열린 PR을 찾지 못했습니다. 종료합니다."
+            exit 0
+          fi
+
+          echo "브랜치 $BRANCH_NAME 에 대한 PR #$pr_number 발견"
+
+          # 3) main 대상으로 자동 머지 시도
+          merge_payload=$(jq -n '{Do: "merge"}')
+
+          echo "PR #$pr_number 자동 머지 시도..."
+          curl -sS -X POST \
+            -H "Content-Type: application/json" \
+            -H "Authorization: token $CI_TOKEN" \
+            "$CI_BASE_URL/api/v1/repos/$CI_OWNER/$CI_REPO/pulls/$pr_number/merge" \
+            -d "$merge_payload" || true