diff --git a/.replit b/.replit
index aca6e40..8826cfc 100644
--- a/.replit
+++ b/.replit
@@ -18,10 +18,6 @@ externalPort = 80
 localPort = 34047
 externalPort = 3002
 
-[[ports]]
-localPort = 34469
-externalPort = 6800
-
 [[ports]]
 localPort = 36309
 externalPort = 5173
diff --git a/attached_assets/검은색 로고_1760521542271.png b/attached_assets/검은색 로고_1760521542271.png
new file mode 100644
index 0000000..33d50ba
Binary files /dev/null and b/attached_assets/검은색 로고_1760521542271.png differ
diff --git a/client/src/components/Footer.tsx b/client/src/components/Footer.tsx
index bfe8920..0bebb06 100644
--- a/client/src/components/Footer.tsx
+++ b/client/src/components/Footer.tsx
@@ -10,7 +10,7 @@ export default function Footer() {
           <div className="flex items-center justify-between mb-3">
             <div className="flex items-center">
               <img 
-                src="/attached_assets/Logo_main_1760521151702.png" 
+                src="/attached_assets/검은색 로고_1760521542271.png" 
                 alt="SAPIENS" 
                 className="h-5 cursor-pointer hover:opacity-80 transition-opacity brightness-0 invert"
                 data-testid="footer-logo"
diff --git a/client/src/components/Header.tsx b/client/src/components/Header.tsx
index 62b1b02..9320db2 100644
--- a/client/src/components/Header.tsx
+++ b/client/src/components/Header.tsx
@@ -54,7 +54,7 @@ export default function Header() {
             <div className="flex items-center">
               <a href="/" data-testid="logo-link">
                 <img 
-                  src="/attached_assets/Logo_main_1760521151702.png" 
+                  src="/attached_assets/검은색 로고_1760521542271.png" 
                   alt="SAPIENS" 
                   className="h-6 w-auto"
                   data-testid="logo-sapiens"
diff --git a/client/src/components/LoginModal.tsx b/client/src/components/LoginModal.tsx
index 4426209..36dcbf4 100644
--- a/client/src/components/LoginModal.tsx
+++ b/client/src/components/LoginModal.tsx
@@ -71,7 +71,7 @@ export default function LoginModal({ isOpen, onClose }: LoginModalProps) {
           <DialogTitle className="flex items-center gap-2">
             <span>Login to</span>
             <img 
-              src="/attached_assets/Logo_main_1760521151702.png" 
+              src="/attached_assets/검은색 로고_1760521542271.png" 
               alt="SAPIENS" 
               className="h-4 w-auto"
             />
diff --git a/client/src/pages/AdminDashboard.tsx b/client/src/pages/AdminDashboard.tsx
index 38ff669..616765d 100644
--- a/client/src/pages/AdminDashboard.tsx
+++ b/client/src/pages/AdminDashboard.tsx
@@ -132,7 +132,7 @@ export default function AdminDashboard() {
           <div className="flex items-center justify-between">
             <div className="flex items-center space-x-4">
               <img 
-                src="/attached_assets/Logo_main_1760521151702.png" 
+                src="/attached_assets/검은색 로고_1760521542271.png" 
                 alt="SAPIENS" 
                 className="h-6 w-auto hover:opacity-80 transition-opacity cursor-pointer"
                 data-testid="logo-sapiens"
diff --git a/client/src/pages/Article.tsx b/client/src/pages/Article.tsx
index c5bad93..b4c2d40 100644
--- a/client/src/pages/Article.tsx
+++ b/client/src/pages/Article.tsx
@@ -241,7 +241,7 @@ export default function Article() {
                 <div className="pl-10 pr-16 py-1.5 bg-gray-50 border border-gray-200 rounded-md flex items-center space-x-2 hover:bg-gray-100 transition-colors">
                   <span className="text-sm text-gray-500">search in</span>
                   <img 
-                    src="/attached_assets/Logo_main_1760521151702.png" 
+                    src="/attached_assets/검은색 로고_1760521542271.png" 
                     alt="SAPIENS" 
                     className="h-2 w-auto"
                   />
diff --git a/client/src/pages/AuctionGuide.tsx b/client/src/pages/AuctionGuide.tsx
index c38726b..48a8744 100644
--- a/client/src/pages/AuctionGuide.tsx
+++ b/client/src/pages/AuctionGuide.tsx
@@ -25,7 +25,7 @@ export default function AuctionGuide() {
           <div className="flex items-center justify-between">
             <Link href="/">
               <img 
-                src="/attached_assets/Logo_main_1760521151702.png" 
+                src="/attached_assets/검은색 로고_1760521542271.png" 
                 alt="SAPIENS" 
                 className="h-5 w-auto cursor-pointer"
                 data-testid="logo-sapiens"
diff --git a/client/src/pages/Auctions.tsx b/client/src/pages/Auctions.tsx
index 9eedeb8..f29444e 100644
--- a/client/src/pages/Auctions.tsx
+++ b/client/src/pages/Auctions.tsx
@@ -237,7 +237,7 @@ export default function Auctions() {
             <div className="flex items-center gap-4">
               <Link href="/">
                 <img 
-                  src="/attached_assets/Logo_main_1760521151702.png" 
+                  src="/attached_assets/검은색 로고_1760521542271.png" 
                   alt="SAPIENS" 
                   className="h-5 w-auto cursor-pointer"
                   data-testid="logo-sapiens"
diff --git a/client/src/pages/Community.tsx b/client/src/pages/Community.tsx
index 313ded6..a3e540e 100644
--- a/client/src/pages/Community.tsx
+++ b/client/src/pages/Community.tsx
@@ -159,7 +159,7 @@ export default function Community() {
             
             <div className="flex items-center space-x-4">
               <img 
-                src="/attached_assets/Logo_main_1760521151702.png" 
+                src="/attached_assets/검은색 로고_1760521542271.png" 
                 alt="SAPIENS" 
                 className="h-4 w-auto cursor-pointer opacity-60 hover:opacity-100 transition-opacity"
                 onClick={() => setLocation("/")}
diff --git a/client/src/pages/Home.tsx b/client/src/pages/Home.tsx
index 4e6bf7d..86c5b73 100644
--- a/client/src/pages/Home.tsx
+++ b/client/src/pages/Home.tsx
@@ -99,7 +99,7 @@ export default function Home() {
           <div className="flex items-center justify-between">
             <div className="flex items-center">
               <img 
-                src="/attached_assets/Logo_main_1760521151702.png" 
+                src="/attached_assets/검은색 로고_1760521542271.png" 
                 alt="SAPIENS" 
                 className="h-5 w-auto cursor-pointer"
                 data-testid="logo-sapiens"
@@ -117,7 +117,7 @@ export default function Home() {
                 <div className="pl-10 pr-16 py-1.5 bg-gray-50 border border-gray-200 rounded-md flex items-center space-x-2 hover:bg-gray-100 transition-colors">
                   <span className="text-sm text-gray-500">search in</span>
                   <img 
-                    src="/attached_assets/Logo_main_1760521151702.png" 
+                    src="/attached_assets/검은색 로고_1760521542271.png" 
                     alt="SAPIENS" 
                     className="h-2 w-auto"
                   />
diff --git a/client/src/pages/Landing.tsx b/client/src/pages/Landing.tsx
index 06da22b..eb15c2b 100644
--- a/client/src/pages/Landing.tsx
+++ b/client/src/pages/Landing.tsx
@@ -132,7 +132,7 @@ export default function Landing() {
           <div className="flex items-center justify-between">
             <div className="flex items-center">
               <img 
-                src="/attached_assets/Logo_main_1760521151702.png" 
+                src="/attached_assets/검은색 로고_1760521542271.png" 
                 alt="SAPIENS" 
                 className="h-6 w-auto"
                 data-testid="logo-sapiens"
@@ -148,7 +148,7 @@ export default function Landing() {
                 <div className="pl-10 pr-16 py-1.5 bg-gray-50 border border-gray-200 rounded-md flex items-center space-x-2 hover:bg-gray-100 transition-colors">
                   <span className="text-sm text-gray-500">search in</span>
                   <img 
-                    src="/attached_assets/Logo_main_1760521151702.png" 
+                    src="/attached_assets/검은색 로고_1760521542271.png" 
                     alt="SAPIENS" 
                     className="h-2 w-auto"
                   />
diff --git a/client/src/pages/MediaOutlet.tsx b/client/src/pages/MediaOutlet.tsx
index b4d15de..35500b3 100644
--- a/client/src/pages/MediaOutlet.tsx
+++ b/client/src/pages/MediaOutlet.tsx
@@ -238,7 +238,7 @@ export default function MediaOutlet() {
                 <div className="pl-10 pr-16 py-1.5 bg-gray-50 border border-gray-200 rounded-md flex items-center space-x-2 hover:bg-gray-100 transition-colors">
                   <span className="text-sm text-gray-500">search in</span>
                   <img 
-                    src="/attached_assets/Logo_main_1760521151702.png" 
+                    src="/attached_assets/검은색 로고_1760521542271.png" 
                     alt="SAPIENS" 
                     className="h-2 w-auto"
                   />
diff --git a/client/src/pages/Report.tsx b/client/src/pages/Report.tsx
index 8890087..0c0754b 100644
--- a/client/src/pages/Report.tsx
+++ b/client/src/pages/Report.tsx
@@ -507,7 +507,7 @@ export default function Report() {
                 <div className="pl-10 pr-16 py-1.5 bg-gray-50 border border-gray-200 rounded-md flex items-center space-x-2 hover:bg-gray-100 transition-colors">
                   <span className="text-sm text-gray-500">search in</span>
                   <img 
-                    src="/attached_assets/Logo_main_1760521151702.png" 
+                    src="/attached_assets/검은색 로고_1760521542271.png" 
                     alt="SAPIENS" 
                     className="h-2 w-auto"
                   />