diff --git a/TaxBaik.Admin/Program.cs b/TaxBaik.Admin/Program.cs
index c14cb48..b9be318 100644
--- a/TaxBaik.Admin/Program.cs
+++ b/TaxBaik.Admin/Program.cs
@@ -1,29 +1,38 @@
-using Microsoft.AspNetCore.Components;
-using Microsoft.AspNetCore.Components.Web;
-using TaxBaik.Admin.Data;
+using Microsoft.AspNetCore.Authentication.Cookies;
+using MudBlazor.Services;
+using TaxBaik.Application;
+using TaxBaik.Infrastructure;
 
 var builder = WebApplication.CreateBuilder(args);
 
-// Add services to the container.
+builder.Services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
+    .AddCookie(opts => {
+        opts.LoginPath = "/login";
+        opts.ExpireTimeSpan = TimeSpan.FromHours(8);
+    });
+builder.Services.AddAuthorizationCore();
+
 builder.Services.AddRazorPages();
 builder.Services.AddServerSideBlazor();
-builder.Services.AddSingleton<WeatherForecastService>();
+builder.Services.AddMudServices();
+builder.Services.AddMemoryCache();
+builder.Services.AddInfrastructure();
+builder.Services.AddApplication();
 
 var app = builder.Build();
 
-// Configure the HTTP request pipeline.
 if (!app.Environment.IsDevelopment())
 {
     app.UseExceptionHandler("/Error");
-    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
     app.UseHsts();
 }
 
+app.UsePathBase("/taxbaik/admin");
 app.UseHttpsRedirection();
-
 app.UseStaticFiles();
-
 app.UseRouting();
+app.UseAuthentication();
+app.UseAuthorization();
 
 app.MapBlazorHub();
 app.MapFallbackToPage("/_Host");
diff --git a/TaxBaik.Admin/TaxBaik.Admin.csproj b/TaxBaik.Admin/TaxBaik.Admin.csproj
index 57dd732..55794af 100644
--- a/TaxBaik.Admin/TaxBaik.Admin.csproj
+++ b/TaxBaik.Admin/TaxBaik.Admin.csproj
@@ -11,4 +11,8 @@
     <ProjectReference Include="..\TaxBaik.Infrastructure\TaxBaik.Infrastructure.csproj" />
   </ItemGroup>
 
+  <ItemGroup>
+    <PackageReference Include="MudBlazor" Version="6.9.4" />
+  </ItemGroup>
+
 </Project>
diff --git a/TaxBaik.Web/Pages/Contact.cshtml b/TaxBaik.Web/Pages/Contact.cshtml
index 9d33506..c9571d3 100644
--- a/TaxBaik.Web/Pages/Contact.cshtml
+++ b/TaxBaik.Web/Pages/Contact.cshtml
@@ -62,5 +62,8 @@
 
     <h5 class="fw-bold mb-3">빠른 상담을 원하시나요?</h5>
     <p>카카오톡 채널을 통해 더 빠르게 상담받을 수 있습니다.</p>
-    <button class="btn btn-warning" onclick="openKakao()">카카오톡 채널 문의</button>
+    <div class="gap-2 d-flex flex-wrap">
+        <a href="http://pf.kakao.com/_xoxchTX" target="_blank" class="btn btn-warning">카카오톡 채널 문의</a>
+        <a href="tel:010-4122-8268" class="btn btn-outline-primary">전화 상담</a>
+    </div>
 </div>
diff --git a/TaxBaik.Web/Pages/Shared/_Footer.cshtml b/TaxBaik.Web/Pages/Shared/_Footer.cshtml
index 48de9f6..0d3c4dc 100644
--- a/TaxBaik.Web/Pages/Shared/_Footer.cshtml
+++ b/TaxBaik.Web/Pages/Shared/_Footer.cshtml
@@ -11,16 +11,15 @@
             <div class="col-md-4">
                 <h6 class="fw-bold">연락처</h6>
                 <p class="small">
-                    📞 <a href="tel:010-0000-0000" class="text-decoration-none">010-0000-0000</a><br />
-                    📧 <a href="mailto:info@example.com" class="text-decoration-none">info@example.com</a>
+                    📞 <a href="tel:010-4122-8268" class="text-decoration-none">010-4122-8268</a><br />
+                    📧 <a href="mailto:taxbaik5668@gmail.com" class="text-decoration-none">taxbaik5668@gmail.com</a>
                 </p>
             </div>
             <div class="col-md-4">
-                <h6 class="fw-bold">카카오톡</h6>
+                <h6 class="fw-bold">채널</h6>
                 <p class="small">
-                    <a href="javascript:void(0);" class="btn btn-sm btn-warning" onclick="openKakao()">
-                        카카오톡 채널
-                    </a>
+                    <a href="http://pf.kakao.com/_xoxchTX" target="_blank" class="btn btn-sm btn-warning me-2">카카오톡</a>
+                    <a href="https://www.instagram.com/taxtory5668/" target="_blank" class="btn btn-sm btn-outline-secondary">Instagram</a>
                 </p>
             </div>
         </div>
diff --git a/TaxBaik.Web/Pages/Shared/_Header.cshtml b/TaxBaik.Web/Pages/Shared/_Header.cshtml
index b5a0b97..0a63324 100644
--- a/TaxBaik.Web/Pages/Shared/_Header.cshtml
+++ b/TaxBaik.Web/Pages/Shared/_Header.cshtml
@@ -26,8 +26,8 @@
             </ul>
         </div>
         <div class="ms-3 d-none d-md-block">
-            <a href="tel:010-0000-0000" class="text-decoration-none text-dark fw-500">
-                📞 상담신청
+            <a href="tel:010-4122-8268" class="text-decoration-none text-dark fw-500">
+                📞 010-4122-8268
             </a>
         </div>
     </nav>
diff --git a/TaxBaik.Web/Pages/_Layout.cshtml b/TaxBaik.Web/Pages/_Layout.cshtml
index 7710b83..e3baefe 100644
--- a/TaxBaik.Web/Pages/_Layout.cshtml
+++ b/TaxBaik.Web/Pages/_Layout.cshtml
@@ -25,7 +25,7 @@
 
     <!-- Mobile Fixed CTA -->
     <div class="mobile-cta-bar d-lg-none">
-        <a href="javascript:void(0);" class="btn-kakao-mobile" onclick="openKakao()">
+        <a href="http://pf.kakao.com/_xoxchTX" target="_blank" class="btn-kakao-mobile">
             💬 카카오 상담하기
         </a>
     </div>
diff --git a/TaxBaik.Web/appsettings.json b/TaxBaik.Web/appsettings.json
index 3d98cd4..2794c02 100644
--- a/TaxBaik.Web/appsettings.json
+++ b/TaxBaik.Web/appsettings.json
@@ -8,5 +8,13 @@
   "ConnectionStrings": {
     "Default": "Host=localhost;Database=taxbaikdb;Username=taxbaik;Password=taxbaik123"
   },
+  "SiteSettings": {
+    "PhoneNumber": "010-4122-8268",
+    "EmailAddress": "taxbaik5668@gmail.com",
+    "KakaoChannelUrl": "http://pf.kakao.com/_xoxchTX",
+    "InstagramUrl": "https://www.instagram.com/taxtory5668/",
+    "CompanyName": "백원숙 세무회계",
+    "CompanyDescription": "사업자 기장, 부동산 양도세·증여세, 종합소득세 전문 상담"
+  },
   "AllowedHosts": "*"
 }