diff --git a/src/TaxBaik.Web/Pages/Admin/Blog/Create.cshtml b/src/TaxBaik.Web/Pages/Admin/Blog/Create.cshtml
index 483a706..1325a65 100644
--- a/src/TaxBaik.Web/Pages/Admin/Blog/Create.cshtml
+++ b/src/TaxBaik.Web/Pages/Admin/Blog/Create.cshtml
@@ -4,20 +4,13 @@
     ViewData["Title"] = "블로그 등록";
 }
 
-<section class="container-fluid py-4" data-blog-editor-root>
+<section class="container-fluid admin-page-shell admin-editor-root" data-blog-editor-root>
     <div class="row g-3">
         <div class="col-12">
-            <div class="page-header">
-                <div class="row align-items-center">
-                    <div class="col">
-                        <div class="page-pretitle">Content</div>
-                        <h2 class="page-title">블로그 등록</h2>
-                    </div>
-                </div>
-            </div>
+            <partial name="_AdminPageHeader" model='("콘텐츠", "블로그 등록", "에디터와 미리보기를 함께 제공하는 작성 화면입니다.", null, null)' />
         </div>
         <div class="col-lg-8">
-            <form method="post" class="card">
+            <form method="post" class="card admin-page-card">
                 <div class="card-body">
                     <div asp-validation-summary="All" class="alert alert-danger"></div>
                     <input type="hidden" asp-for="Input.Content" data-blog-editor-value />
@@ -28,14 +21,14 @@
                     </div>
                     <div class="mb-3">
                         <label class="form-label">본문</label>
-                        <div class="d-flex flex-wrap gap-2 mb-2">
+                        <div class="d-flex flex-wrap gap-2 admin-editor-toolbar">
                             <button type="button" class="btn btn-sm btn-outline-secondary" data-blog-command="bold">Bold</button>
                             <button type="button" class="btn btn-sm btn-outline-secondary" data-blog-command="italic">Italic</button>
                             <button type="button" class="btn btn-sm btn-outline-secondary" data-blog-command="insertUnorderedList">UL</button>
                             <button type="button" class="btn btn-sm btn-outline-secondary" data-blog-command="formatBlock" data-blog-value="h2">H2</button>
                             <button type="button" class="btn btn-sm btn-outline-secondary" data-blog-command="formatBlock" data-blog-value="blockquote">Quote</button>
                         </div>
-                        <div class="form-control" data-blog-editor contenteditable="true" style="min-height: 320px; overflow:auto;"></div>
+                        <div class="form-control admin-editor-content" data-blog-editor contenteditable="true"></div>
                         <div class="form-hint text-muted small mt-2">HTML 태그는 그대로 저장되고 홈페이지에서 렌더링됩니다.</div>
                     </div>
                     <div class="row g-3">
@@ -61,17 +54,17 @@
                         </div>
                     </div>
                 </div>
-                <div class="card-footer d-flex justify-content-between">
+                <div class="card-footer bg-white d-flex justify-content-between">
                     <a class="btn btn-outline-secondary" href="/admin/blog">취소</a>
                     <button class="btn btn-primary" type="submit">저장</button>
                 </div>
             </form>
         </div>
         <div class="col-lg-4">
-            <div class="card">
+            <div class="card admin-page-card h-100">
                 <div class="card-header"><h3 class="card-title">미리보기</h3></div>
                 <div class="card-body">
-                    <article class="markdown-body" data-blog-preview></article>
+                    <article class="markdown-body admin-editor-preview" data-blog-preview></article>
                 </div>
             </div>
         </div>
diff --git a/src/TaxBaik.Web/Pages/Admin/Blog/Edit.cshtml b/src/TaxBaik.Web/Pages/Admin/Blog/Edit.cshtml
index 83e6fdb..8a0c90c 100644
--- a/src/TaxBaik.Web/Pages/Admin/Blog/Edit.cshtml
+++ b/src/TaxBaik.Web/Pages/Admin/Blog/Edit.cshtml
@@ -4,20 +4,13 @@
     ViewData["Title"] = "블로그 수정";
 }
 
-<section class="container-fluid py-4" data-blog-editor-root>
+<section class="container-fluid admin-page-shell admin-editor-root" data-blog-editor-root>
     <div class="row g-3">
         <div class="col-12">
-            <div class="page-header">
-                <div class="row align-items-center">
-                    <div class="col">
-                        <div class="page-pretitle">Content</div>
-                        <h2 class="page-title">블로그 수정</h2>
-                    </div>
-                </div>
-            </div>
+            <partial name="_AdminPageHeader" model='("콘텐츠", "블로그 수정", "기존 글을 불러와 즉시 편집하고 미리볼 수 있습니다.", null, null)' />
         </div>
         <div class="col-lg-8">
-            <form method="post" class="card">
+            <form method="post" class="card admin-page-card">
                 <div class="card-body">
                     <div asp-validation-summary="All" class="alert alert-danger"></div>
                     <input type="hidden" asp-for="Id" />
@@ -28,14 +21,14 @@
                     </div>
                     <div class="mb-3">
                         <label class="form-label">본문</label>
-                        <div class="d-flex flex-wrap gap-2 mb-2">
+                        <div class="d-flex flex-wrap gap-2 admin-editor-toolbar">
                             <button type="button" class="btn btn-sm btn-outline-secondary" data-blog-command="bold">Bold</button>
                             <button type="button" class="btn btn-sm btn-outline-secondary" data-blog-command="italic">Italic</button>
                             <button type="button" class="btn btn-sm btn-outline-secondary" data-blog-command="insertUnorderedList">UL</button>
                             <button type="button" class="btn btn-sm btn-outline-secondary" data-blog-command="formatBlock" data-blog-value="h2">H2</button>
                             <button type="button" class="btn btn-sm btn-outline-secondary" data-blog-command="formatBlock" data-blog-value="blockquote">Quote</button>
                         </div>
-                        <div class="form-control" data-blog-editor contenteditable="true" style="min-height: 320px; overflow:auto;">@Html.Raw(Model.Input.Content)</div>
+                        <div class="form-control admin-editor-content" data-blog-editor contenteditable="true">@Html.Raw(Model.Input.Content)</div>
                     </div>
                     <div class="row g-3">
                         <div class="col-md-4">
@@ -60,7 +53,7 @@
                         </div>
                     </div>
                 </div>
-                <div class="card-footer d-flex justify-content-between">
+                <div class="card-footer bg-white d-flex justify-content-between">
                     <button class="btn btn-outline-danger" type="submit" formaction="?handler=Delete" formmethod="post" onclick="return confirm('삭제하시겠습니까?');">삭제</button>
                     <div class="d-flex gap-2">
                         <a class="btn btn-outline-secondary" href="/admin/blog">취소</a>
@@ -70,10 +63,10 @@
             </form>
         </div>
         <div class="col-lg-4">
-            <div class="card">
+            <div class="card admin-page-card h-100">
                 <div class="card-header"><h3 class="card-title">미리보기</h3></div>
                 <div class="card-body">
-                    <article class="markdown-body" data-blog-preview>@Html.Raw(Model.Input.Content)</article>
+                    <article class="markdown-body admin-editor-preview" data-blog-preview>@Html.Raw(Model.Input.Content)</article>
                 </div>
             </div>
         </div>
diff --git a/src/TaxBaik.Web/Pages/Admin/ClientLogs/Index.cshtml b/src/TaxBaik.Web/Pages/Admin/ClientLogs/Index.cshtml
index f1695dd..42c38d2 100644
--- a/src/TaxBaik.Web/Pages/Admin/ClientLogs/Index.cshtml
+++ b/src/TaxBaik.Web/Pages/Admin/ClientLogs/Index.cshtml
@@ -1,7 +1,7 @@
 @page
 @model TaxBaik.Web.Pages.Admin.ClientLogs.IndexModel
 @{ ViewData["Title"] = "클라이언트 로그"; }
-<section class="container py-4 py-lg-5">
+<section class="container admin-page-shell">
     <partial name="_AdminPageHeader" model='("운영 로그", "클라이언트 로그", "고객별 작업 이력을 확인합니다.", null, null)' />
     <partial name="_ComingSoon" model="클라이언트 로그" />
 </section>
diff --git a/src/TaxBaik.Web/Pages/Admin/Clients/Create.cshtml b/src/TaxBaik.Web/Pages/Admin/Clients/Create.cshtml
index c93d564..10826cd 100644
--- a/src/TaxBaik.Web/Pages/Admin/Clients/Create.cshtml
+++ b/src/TaxBaik.Web/Pages/Admin/Clients/Create.cshtml
@@ -4,7 +4,7 @@
     ViewData["Title"] = "고객 등록";
 }
 
-<section class="container py-4 py-lg-5">
+<section class="container admin-page-shell">
     <partial name="_AdminPageHeader" model='("고객 관리", "고객 등록", "FluentValidation과 Tabler 표준 폼으로 신규 고객을 등록합니다.", null, null)' />
 
     <form method="post" class="card shadow-sm border-0">
diff --git a/src/TaxBaik.Web/Pages/Admin/Clients/Detail.cshtml b/src/TaxBaik.Web/Pages/Admin/Clients/Detail.cshtml
index 4a33528..f7aa3f8 100644
--- a/src/TaxBaik.Web/Pages/Admin/Clients/Detail.cshtml
+++ b/src/TaxBaik.Web/Pages/Admin/Clients/Detail.cshtml
@@ -4,7 +4,7 @@
     ViewData["Title"] = "고객 상세";
 }
 
-<section class="container py-4 py-lg-5">
+<section class="container admin-page-shell">
     <partial name="_AdminPageHeader" model='("고객 관리", "고객 상세", "고객의 기본 정보와 수정 경로를 확인합니다.", null, null)' />
 
     @if (Model.Client is null)
diff --git a/src/TaxBaik.Web/Pages/Admin/Clients/Edit.cshtml b/src/TaxBaik.Web/Pages/Admin/Clients/Edit.cshtml
index f44ffad..8ad3edf 100644
--- a/src/TaxBaik.Web/Pages/Admin/Clients/Edit.cshtml
+++ b/src/TaxBaik.Web/Pages/Admin/Clients/Edit.cshtml
@@ -4,7 +4,7 @@
     ViewData["Title"] = "고객 수정";
 }
 
-<section class="container py-4 py-lg-5">
+<section class="container admin-page-shell">
     <partial name="_AdminPageHeader" model='("고객 관리", "고객 수정", "기존 고객 정보를 불러와 Tabler 표준 폼으로 수정합니다.", null, null)' />
 
     <form method="post" class="card shadow-sm border-0">
diff --git a/src/TaxBaik.Web/Pages/Admin/Clients/Index.cshtml b/src/TaxBaik.Web/Pages/Admin/Clients/Index.cshtml
index 3834fc1..1939057 100644
--- a/src/TaxBaik.Web/Pages/Admin/Clients/Index.cshtml
+++ b/src/TaxBaik.Web/Pages/Admin/Clients/Index.cshtml
@@ -4,7 +4,7 @@
     ViewData["Title"] = "고객 관리";
 }
 
-<section class="container py-4 py-lg-5">
+<section class="container admin-page-shell">
     <partial name="_AdminPageHeader" model='("고객 관리", "고객 목록", "검색, 상태 필터, 페이지네이션 기준의 고객 목록입니다.", null, null)' />
 
     <form method="get" class="card shadow-sm border-0 mb-4">
diff --git a/src/TaxBaik.Web/Pages/Admin/CommonCodes/Index.cshtml b/src/TaxBaik.Web/Pages/Admin/CommonCodes/Index.cshtml
index 5dd3d03..f0fac90 100644
--- a/src/TaxBaik.Web/Pages/Admin/CommonCodes/Index.cshtml
+++ b/src/TaxBaik.Web/Pages/Admin/CommonCodes/Index.cshtml
@@ -1,4 +1,7 @@
 @page
 @model TaxBaik.Web.Pages.Admin.CommonCodes.IndexModel
 @{ ViewData["Title"] = "공통코드"; }
-<section class="container py-5"><h1 class="h2 fw-bold">공통코드 관리</h1></section>
+<section class="container admin-page-shell">
+    <partial name="_AdminPageHeader" model='("운영 설정", "공통 코드", "코드성 데이터를 표준화해 관리합니다.", null, null)' />
+    <partial name="_ComingSoon" model="공통 코드" />
+</section>
diff --git a/src/TaxBaik.Web/Pages/Admin/ConsultingActivities/Index.cshtml b/src/TaxBaik.Web/Pages/Admin/ConsultingActivities/Index.cshtml
index cd37edd..5816829 100644
--- a/src/TaxBaik.Web/Pages/Admin/ConsultingActivities/Index.cshtml
+++ b/src/TaxBaik.Web/Pages/Admin/ConsultingActivities/Index.cshtml
@@ -1,7 +1,7 @@
 @page
 @model TaxBaik.Web.Pages.Admin.ConsultingActivities.IndexModel
 @{ ViewData["Title"] = "상담 활동"; }
-<section class="container py-4 py-lg-5">
+<section class="container admin-page-shell">
     <partial name="_AdminPageHeader" model='("세무 운영", "상담 활동", "상담 히스토리와 후속 조치를 관리합니다.", null, null)' />
     <partial name="_ComingSoon" model="상담 활동" />
 </section>
diff --git a/src/TaxBaik.Web/Pages/Admin/Contracts/Index.cshtml b/src/TaxBaik.Web/Pages/Admin/Contracts/Index.cshtml
index a972fb3..35643d3 100644
--- a/src/TaxBaik.Web/Pages/Admin/Contracts/Index.cshtml
+++ b/src/TaxBaik.Web/Pages/Admin/Contracts/Index.cshtml
@@ -1,7 +1,7 @@
 @page
 @model TaxBaik.Web.Pages.Admin.Contracts.IndexModel
 @{ ViewData["Title"] = "계약"; }
-<section class="container py-4 py-lg-5">
+<section class="container admin-page-shell">
     <partial name="_AdminPageHeader" model='("세무 운영", "계약 관리", "계약 상태와 만료일을 추적합니다.", null, null)' />
     <partial name="_ComingSoon" model="계약 관리" />
 </section>
diff --git a/src/TaxBaik.Web/Pages/Admin/RevenueTrackings/Index.cshtml b/src/TaxBaik.Web/Pages/Admin/RevenueTrackings/Index.cshtml
index 80af9c8..c408c5e 100644
--- a/src/TaxBaik.Web/Pages/Admin/RevenueTrackings/Index.cshtml
+++ b/src/TaxBaik.Web/Pages/Admin/RevenueTrackings/Index.cshtml
@@ -1,7 +1,7 @@
 @page
 @model TaxBaik.Web.Pages.Admin.RevenueTrackings.IndexModel
 @{ ViewData["Title"] = "매출 추적"; }
-<section class="container py-4 py-lg-5">
+<section class="container admin-page-shell">
     <partial name="_AdminPageHeader" model='("세무 운영", "매출 추적", "월별 매출 추이를 확인하는 분석 화면입니다.", null, null)' />
     <partial name="_ComingSoon" model="매출 추적" />
 </section>
diff --git a/src/TaxBaik.Web/Pages/Admin/SeasonSimulator/Index.cshtml b/src/TaxBaik.Web/Pages/Admin/SeasonSimulator/Index.cshtml
index 741d1bb..51d5f63 100644
--- a/src/TaxBaik.Web/Pages/Admin/SeasonSimulator/Index.cshtml
+++ b/src/TaxBaik.Web/Pages/Admin/SeasonSimulator/Index.cshtml
@@ -1,7 +1,7 @@
 @page
 @model TaxBaik.Web.Pages.Admin.SeasonSimulator.IndexModel
 @{ ViewData["Title"] = "시즌 시뮬레이터"; }
-<section class="container py-4 py-lg-5">
+<section class="container admin-page-shell">
     <partial name="_AdminPageHeader" model='("운영 도구", "시즌 시뮬레이터", "정책 변경 시 영향을 미리 확인하는 도구입니다.", null, null)' />
     <partial name="_ComingSoon" model="시즌 시뮬레이터" />
 </section>
diff --git a/src/TaxBaik.Web/Pages/Admin/Settings/Index.cshtml b/src/TaxBaik.Web/Pages/Admin/Settings/Index.cshtml
index b5772e8..91b6c41 100644
--- a/src/TaxBaik.Web/Pages/Admin/Settings/Index.cshtml
+++ b/src/TaxBaik.Web/Pages/Admin/Settings/Index.cshtml
@@ -1,7 +1,7 @@
 @page
 @model TaxBaik.Web.Pages.Admin.Settings.IndexModel
 @{ ViewData["Title"] = "설정"; }
-<section class="container py-4 py-lg-5">
+<section class="container admin-page-shell">
     <partial name="_AdminPageHeader" model='("환경 설정", "설정", "시스템 기본값과 관리자 운영 정책을 정리합니다.", null, null)' />
     <partial name="_ComingSoon" model="설정 기능" />
 </section>
diff --git a/src/TaxBaik.Web/Pages/Admin/TaxFilingSchedules/Index.cshtml b/src/TaxBaik.Web/Pages/Admin/TaxFilingSchedules/Index.cshtml
index 276ae8f..12d3477 100644
--- a/src/TaxBaik.Web/Pages/Admin/TaxFilingSchedules/Index.cshtml
+++ b/src/TaxBaik.Web/Pages/Admin/TaxFilingSchedules/Index.cshtml
@@ -1,4 +1,7 @@
 @page
 @model TaxBaik.Web.Pages.Admin.TaxFilingSchedules.IndexModel
 @{ ViewData["Title"] = "신고 일정"; }
-<section class="container py-5"><h1 class="h2 fw-bold">신고 일정 관리</h1></section>
+<section class="container admin-page-shell">
+    <partial name="_AdminPageHeader" model='("세무 운영", "세금 신고 일정", "세무 신고 마감 일정과 상태를 관리합니다.", null, null)' />
+    <partial name="_ComingSoon" model="세금 신고 일정" />
+</section>
diff --git a/src/TaxBaik.Web/Pages/Admin/TaxFilings/Index.cshtml b/src/TaxBaik.Web/Pages/Admin/TaxFilings/Index.cshtml
index 75cb7fd..016f98b 100644
--- a/src/TaxBaik.Web/Pages/Admin/TaxFilings/Index.cshtml
+++ b/src/TaxBaik.Web/Pages/Admin/TaxFilings/Index.cshtml
@@ -1,7 +1,7 @@
 @page
 @model TaxBaik.Web.Pages.Admin.TaxFilings.IndexModel
 @{ ViewData["Title"] = "세금 신고"; }
-<section class="container py-4 py-lg-5">
+<section class="container admin-page-shell">
     <partial name="_AdminPageHeader" model='("세무 운영", "세금 신고", "신고 상태를 한 화면에서 관리합니다.", null, null)' />
     <partial name="_ComingSoon" model="세금 신고 관리" />
 </section>
diff --git a/src/TaxBaik.Web/wwwroot/css/admin.css b/src/TaxBaik.Web/wwwroot/css/admin.css
index 1c46e49..fdc4b9e 100644
--- a/src/TaxBaik.Web/wwwroot/css/admin.css
+++ b/src/TaxBaik.Web/wwwroot/css/admin.css
@@ -1439,6 +1439,41 @@ textarea:focus-visible {
   color: var(--text-secondary);
 }
 
+.admin-page-shell {
+  padding-top: 1rem;
+  padding-bottom: 1rem;
+}
+
+.admin-page-card {
+  border: 0;
+  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
+}
+
+.admin-page-card-body {
+  background: #fff;
+}
+
+.admin-coming-soon-card {
+  text-align: center;
+}
+
+.admin-coming-soon-card .card-body {
+  padding: 3rem 1.5rem;
+}
+
+.admin-editor-root .admin-editor-toolbar {
+  margin-bottom: 0.75rem;
+}
+
+.admin-editor-content {
+  min-height: 320px;
+  overflow: auto;
+}
+
+.admin-editor-preview {
+  min-height: 320px;
+}
+
 /* ============================================================================
    Responsive Design - Mobile First
    ============================================================================ */