@@ -3,49 +3,96 @@ import { useNavigate } from 'react-router';
 import { useRecoilState } from 'recoil';
 
 import ReviewZoneIcon from '@/assets/reviewZone.svg';
-import { Button, ImgWithSkeleton } from '@/components';
+import { ImgWithSkeleton, LoginRequestModal } from '@/components';
 import { ROUTE } from '@/constants';
-import { useGetReviewGroupData, useModals, useReviewRequestCodeParam } from '@/hooks';
+import { useGetReviewGroupData, useSearchParamAndQuery, useModals, useToastContext } from '@/hooks';
+import { useGetUserProfile } from '@/hooks/oAuth';
 import { reviewRequestCodeAtom } from '@/recoil';
 import { calculateParticle } from '@/utils';
 
 import PasswordModal from './components/PasswordModal';
+import ReviewButton from './components/ReviewButton';
 import * as S from './styles';
 
 const MODAL_KEYS = {
   content: 'CONTENT_MODAL',
-  login: 'LOGIN_MODAL',
+  writeOnLogin: 'LOGIN_MODAL_TO_WRITE',
+  checkOnLogin: 'LOGIN_MODAL_TO_CHECK',
 };
 
 const BUTTON_SIZE = {
-  width: '28rem',
+  width: '30rem',
   height: '8.5rem',
 };
 
 const IMG_HEIGHT = '15rem';
 
 const ReviewZonePage = () => {
+  const navigate = useNavigate();
+
   const { isOpen, openModal, closeModal } = useModals();
   const [storedReviewRequestCode, setStoredReviewRequestCode] = useRecoilState(reviewRequestCodeAtom);
+  const { userProfile, isUserLoggedIn } = useGetUserProfile();
+  const { showToast } = useToastContext();
 
-  const navigate = useNavigate();
+  const { param: reviewRequestCode } = useSearchParamAndQuery({
+    paramKey: 'reviewRequestCode',
+  });
 
-  const { reviewRequestCode } = useReviewRequestCodeParam();
+  if (!reviewRequestCode) throw new Error('유효하지 않은 리뷰 요청 코드예요');
 
   useEffect(() => {
     if (!storedReviewRequestCode && reviewRequestCode) {
       setStoredReviewRequestCode(reviewRequestCode);
     }
   }, []);
 
-  const { data: reviewGroupData } = useGetReviewGroupData({ reviewRequestCode });
+  useEffect(() => {
+    // 쿼리 파라미터로 전달된 state 파싱
+    const params = new URLSearchParams(location.search);
+    const loginActionParam = params.get('login_action');
+    if (!loginActionParam) return;
+
+    // 로그인 상태가 아닌 경우 쿼리 파라미터 제거
+    if (!isUserLoggedIn) {
+      params.delete('login_action');
+      window.history.replaceState(null, '', `${location.pathname}`);
+      return;
+    }
+
+    if (loginActionParam === 'reviewWrite') return handleReviewWrite();
+    if (loginActionParam === 'reviewCheck') return handleReviewCheck();
+  }, []);
 
-  const handleReviewWritingButtonClick = () => {
+  const { data: reviewGroupData, isMemberLink } = useGetReviewGroupData({ reviewRequestCode });
+
+  const PROJECT_NAME_GUIDE = `${reviewGroupData.projectName}${calculateParticle({ target: reviewGroupData.projectName, particles: { withFinalConsonant: '을', withoutFinalConsonant: '를' } })} 함께한`;
+  const REVIEWEE_NAME_GUIDE = `${reviewGroupData.revieweeName}의 리뷰 공간이에요`;
+
+  const handleReviewWrite = () => {
+    if (isUserLoggedIn) return navigate(`/${ROUTE.reviewWriting}/${reviewRequestCode}`);
+    openModal(MODAL_KEYS.writeOnLogin);
+  };
+
+  const handleReviewWriteGuest = () => {
     navigate(`/${ROUTE.reviewWriting}/${reviewRequestCode}`);
   };
 
-  const handleReviewListButtonClick = () => {
-    openModal(MODAL_KEYS.login);
+  const handleReviewCheck = () => {
+    // 비회원이 만든 그룹이면 비밀번호 입력
+    if (!isMemberLink) return openModal(MODAL_KEYS.content);
+    // 리뷰어가 로그인 안 했으면 로그인 모달 띄우기
+    if (!isUserLoggedIn) return openModal(MODAL_KEYS.checkOnLogin);
+    // 리뷰어가 링크 주인이면 목록 페이지로 이동
+    if (userProfile?.memberId === reviewGroupData.revieweeId) {
+      return navigate(`/${ROUTE.reviewList}/${reviewRequestCode}`);
+    }
+    return showToast({
+      type: 'error',
+      message: '리뷰는 본인만 확인할 수 있어요',
+      durationMS: 3000,
+      position: 'bottom',
+    });
   };
 
   return (
@@ -54,26 +101,31 @@ const ReviewZonePage = () => {
         <S.ReviewZoneMainImg src={ReviewZoneIcon} alt="" $height={IMG_HEIGHT} />
       </ImgWithSkeleton>
       <S.ReviewGuideContainer>
-        <S.ReviewGuide>{`${reviewGroupData.projectName}${calculateParticle({ target: reviewGroupData.projectName, particles: { withFinalConsonant: '을', withoutFinalConsonant: '를' } })} 함께한`}</S.ReviewGuide>
-        <S.ReviewGuide>{`${reviewGroupData.revieweeName}의 리뷰 공간이에요`}</S.ReviewGuide>
+        <S.ReviewGuide>{PROJECT_NAME_GUIDE}</S.ReviewGuide>
+        <S.ReviewGuide>{REVIEWEE_NAME_GUIDE}</S.ReviewGuide>
       </S.ReviewGuideContainer>
-      <S.ButtonContainer>
-        <Button styleType="primary" type="button" onClick={handleReviewWritingButtonClick} style={BUTTON_SIZE}>
-          <S.ButtonTextContainer>
-            <S.ButtonText>리뷰 쓰기</S.ButtonText>
-            <S.ButtonDescription>작성한 리뷰는 익명으로 제출돼요</S.ButtonDescription>
-          </S.ButtonTextContainer>
-        </Button>
-        <Button styleType="secondary" type="button" onClick={handleReviewListButtonClick} style={BUTTON_SIZE}>
-          <S.ButtonTextContainer>
-            <S.ButtonText>리뷰 확인하기</S.ButtonText>
-            <S.ButtonDescription>비밀번호로 내가 받은 리뷰를 확인할 수 있어요</S.ButtonDescription>
-          </S.ButtonTextContainer>
-        </Button>
-      </S.ButtonContainer>
+      <ReviewButton>
+        <ReviewButton.Write handleClick={handleReviewWrite} />
+        {!isUserLoggedIn && <ReviewButton.WriteGuest handleClick={handleReviewWriteGuest} />}
+        <ReviewButton.Check isGroupLoggedIn={isMemberLink} handleClick={handleReviewCheck} />
+      </ReviewButton>
       {isOpen(MODAL_KEYS.content) && (
         <PasswordModal reviewRequestCode={reviewRequestCode} closeModal={() => closeModal(MODAL_KEYS.content)} />
       )}
+      {isOpen(MODAL_KEYS.writeOnLogin) && (
+        <LoginRequestModal
+          action="reviewWrite"
+          titleType="loginIntent"
+          closeModal={() => closeModal(MODAL_KEYS.writeOnLogin)}
+        />
+      )}
+      {isOpen(MODAL_KEYS.checkOnLogin) && (
+        <LoginRequestModal
+          action="reviewCheck"
+          titleType="loginIntent"
+          closeModal={() => closeModal(MODAL_KEYS.checkOnLogin)}
+        />
+      )}
     </S.ReviewZonePage>
   );
 };

리뷰: 저도 그룹 보다는 링크가 조금 더 직관적으로 와닿아서, `isMemberLink`로 수정했습니다. 

다만 관련 API 함수 및 타입명이 모두 ReviewGroup으로 표기되어 있어서, `ReviewGroup`이라는 표기 자체를 `ReviewLink`로 통일하는 게 좋을 것 같아요. 이건 모두의 의견을 들어보고 싶어서 우선 반영하지 않겠습니다.