diff --git a/app/(auth)/layout.tsx b/app/(auth)/layout.tsx
index 00b9e61..c090e33 100644
--- a/app/(auth)/layout.tsx
+++ b/app/(auth)/layout.tsx
@@ -1,10 +1,21 @@
-export default function AuthLayout({
+import { Header } from "@/features/layout/components/header";
+import { createClient } from "@/utils/supabase/server";
+
+export default async function AuthLayout({
   children,
 }: {
   children: React.ReactNode;
 }) {
+  const supabase = await createClient();
+  const {
+    data: { user },
+  } = await supabase.auth.getUser();
+
   return (
-    <div className="relative flex min-h-screen items-center justify-center overflow-hidden bg-linear-to-br from-gray-50 via-white to-gray-100 px-4 py-12 dark:from-black dark:via-gray-950 dark:to-gray-900">
+    <div className="relative flex min-h-screen flex-col items-center justify-center overflow-hidden bg-linear-to-br from-gray-50 via-white to-gray-100 dark:from-black dark:via-gray-950 dark:to-gray-900">
+      {/* ========== 헤더 (홈 이동용) ========== */}
+      <Header user={user} />
+
       {/* ========== 배경 그라디언트 레이어 ========== */}
       <div className="absolute inset-0 bg-[radial-gradient(ellipse_at_top_right,var(--tw-gradient-stops))] from-gray-200/30 via-gray-100/15 to-transparent dark:from-gray-800/30 dark:via-gray-900/20" />
       <div className="absolute inset-0 bg-[radial-gradient(ellipse_at_bottom_left,var(--tw-gradient-stops))] from-gray-300/30 via-gray-200/15 to-transparent dark:from-gray-700/30 dark:via-gray-800/20" />
@@ -13,8 +24,10 @@ export default function AuthLayout({
       <div className="absolute left-1/4 top-1/4 h-64 w-64 animate-pulse rounded-full bg-gray-300/20 blur-3xl dark:bg-gray-700/20" />
       <div className="absolute bottom-1/4 right-1/4 h-64 w-64 animate-pulse rounded-full bg-gray-400/20 blur-3xl delay-700 dark:bg-gray-600/20" />
 
-      {/* ========== 메인 콘텐츠 영역 ========== */}
-      {children}
+      {/* ========== 메인 콘텐츠 영역 (중앙 정렬) ========== */}
+      <main className="z-10 flex w-full flex-1 flex-col items-center justify-center px-4 py-12">
+        {children}
+      </main>
     </div>
   );
 }
diff --git a/app/(auth)/reset-password/page.tsx b/app/(auth)/reset-password/page.tsx
index 4c39f25..bc04848 100644
--- a/app/(auth)/reset-password/page.tsx
+++ b/app/(auth)/reset-password/page.tsx
@@ -30,10 +30,7 @@ export default async function ResetPasswordPage({
   } = await supabase.auth.getUser();
 
   if (!user) {
-    const message = encodeURIComponent(
-      "유효하지 않은 재설정 링크이거나 만료되었습니다. 다시 시도해 주세요.",
-    );
-    redirect(`/login?message=${message}`);
+    redirect(`/login`);
   }
 
   const { message } = params;
diff --git a/app/(home)/page.tsx b/app/(home)/page.tsx
index 929885b..db50939 100644
--- a/app/(home)/page.tsx
+++ b/app/(home)/page.tsx
@@ -1,8 +1,9 @@
 import Link from "next/link";
 import { Button } from "@/components/ui/button";
 import { createClient } from "@/utils/supabase/server";
-import { UserMenu } from "@/features/layout/components/user-menu";
+import { Header } from "@/features/layout/components/header";
 import { AUTH_ROUTES } from "@/features/auth/constants";
+import { SplineScene } from "@/features/home/components/spline-scene";
 
 export default async function HomePage() {
   const supabase = await createClient();
@@ -12,67 +13,53 @@ export default async function HomePage() {
 
   return (
     <div className="flex min-h-screen flex-col">
-      <header className="sticky top-0 z-40 flex h-14 w-full items-center justify-between border-b border-zinc-200 bg-white/75 px-6 backdrop-blur-md dark:border-zinc-800 dark:bg-black/75">
-        <Link href={AUTH_ROUTES.HOME} className="flex items-center gap-2">
-          <div className="h-6 w-6 rounded-md bg-zinc-900 dark:bg-zinc-50" />
-          <span className="text-lg font-bold tracking-tight text-zinc-900 dark:text-zinc-50">
-            AutoTrade
-          </span>
-        </Link>
-        <div className="flex items-center gap-4">
-          {user ? (
-            <>
-              <Button asChild variant="ghost" size="sm">
-                <Link href={AUTH_ROUTES.DASHBOARD}>대시보드</Link>
-              </Button>
-              <UserMenu user={user} />
-            </>
-          ) : (
-            <>
-              <Button asChild variant="ghost" size="sm">
-                <Link href={AUTH_ROUTES.LOGIN}>로그인</Link>
-              </Button>
-              <Button asChild size="sm">
-                <Link href={AUTH_ROUTES.SIGNUP}>무료로 시작하기</Link>
-              </Button>
-            </>
-          )}
-        </div>
-      </header>
+      <Header user={user} showDashboardLink={true} />
 
       <main className="flex-1">
-        <section className="space-y-6 pb-8 pt-6 md:pb-12 md:pt-10 lg:py-32">
-          <div className="container flex max-w-5xl flex-col items-center gap-4 text-center">
-            <h1 className="font-heading text-3xl sm:text-5xl md:text-6xl lg:text-7xl">
-              투자의 미래,{" "}
-              <span className="text-gradient bg-linear-to-r from-indigo-500 to-purple-600 bg-clip-text text-transparent">
-                자동화하세요
-              </span>
-            </h1>
-            <p className="max-w-2xl leading-normal text-muted-foreground sm:text-xl sm:leading-8">
-              AutoTrade는 최첨단 알고리즘을 통해 당신의 암호화폐 투자를 24시간
-              관리합니다. 감정에 휘둘리지 않는 투자를 경험하세요.
-            </p>
-            <div className="space-x-4">
-              {user ? (
-                <Button asChild size="lg" className="h-11 px-8">
-                  <Link href={AUTH_ROUTES.DASHBOARD}>대시보드로 이동</Link>
-                </Button>
-              ) : (
-                <Button asChild size="lg" className="h-11 px-8">
-                  <Link href={AUTH_ROUTES.LOGIN}>지금 시작하기</Link>
-                </Button>
-              )}
-              {!user && (
-                <Button
-                  asChild
-                  variant="outline"
-                  size="lg"
-                  className="h-11 px-8"
-                >
-                  <Link href={AUTH_ROUTES.LOGIN}>데모 체험</Link>
-                </Button>
-              )}
+        <section className="relative overflow-hidden pb-8 pt-6 md:pb-12 md:pt-10 lg:py-32">
+          <div className="container relative z-10 flex max-w-7xl flex-col items-center gap-4 lg:grid lg:grid-cols-2 lg:gap-8 lg:text-left">
+            <div className="flex flex-col items-center lg:items-start lg:gap-8">
+              <h1 className="font-heading text-3xl sm:text-5xl md:text-6xl lg:text-7xl">
+                투자의 미래,{" "}
+                <span className="text-gradient bg-linear-to-r from-indigo-500 to-purple-600 bg-clip-text text-transparent">
+                  자동화하세요
+                </span>
+              </h1>
+              <p className="max-w-2xl leading-normal text-muted-foreground sm:text-xl sm:leading-8">
+                AutoTrade는 최첨단 알고리즘을 통해 당신의 암호화폐 투자를 24시간
+                관리합니다. 감정에 휘둘리지 않는 투자를 경험하세요.
+              </p>
+              <div className="space-x-4">
+                {user ? (
+                  <Button asChild size="lg" className="h-11 px-8">
+                    <Link href={AUTH_ROUTES.DASHBOARD}>대시보드로 이동</Link>
+                  </Button>
+                ) : (
+                  <Button asChild size="lg" className="h-11 px-8">
+                    <Link href={AUTH_ROUTES.LOGIN}>지금 시작하기</Link>
+                  </Button>
+                )}
+                {!user && (
+                  <Button
+                    asChild
+                    variant="outline"
+                    size="lg"
+                    className="h-11 px-8"
+                  >
+                    <Link href={AUTH_ROUTES.LOGIN}>데모 체험</Link>
+                  </Button>
+                )}
+              </div>
+            </div>
+
+            <div className="relative mt-8 h-[400px] w-full lg:mt-0 lg:h-[600px]">
+              {/* Spline Scene Container */}
+              <div className="absolute inset-0 rounded-2xl bg-zinc-100/50 dark:bg-zinc-900/50">
+                <SplineScene
+                  sceneUrl="https://prod.spline.design/6Wq1Q7YGyM-iab9i/scene.splinecode"
+                  className="rounded-2xl"
+                />
+              </div>
             </div>
           </div>
         </section>
diff --git a/app/(main)/layout.tsx b/app/(main)/layout.tsx
index bebd960..f098512 100644
--- a/app/(main)/layout.tsx
+++ b/app/(main)/layout.tsx
@@ -1,14 +1,20 @@
 import { Header } from "@/features/layout/components/header";
 import { Sidebar } from "@/features/layout/components/sidebar";
+import { createClient } from "@/utils/supabase/server";
 
-export default function MainLayout({
+export default async function MainLayout({
   children,
 }: {
   children: React.ReactNode;
 }) {
+  const supabase = await createClient();
+  const {
+    data: { user },
+  } = await supabase.auth.getUser();
+
   return (
     <div className="flex min-h-screen flex-col bg-zinc-50 dark:bg-black">
-      <Header />
+      <Header user={user} />
       <div className="flex flex-1">
         <Sidebar />
         <main className="flex-1 w-full p-6 md:p-8 lg:p-10">{children}</main>
diff --git a/features/home/components/spline-scene.tsx b/features/home/components/spline-scene.tsx
new file mode 100644
index 0000000..53f38ca
--- /dev/null
+++ b/features/home/components/spline-scene.tsx
@@ -0,0 +1,29 @@
+"use client";
+
+import Spline from "@splinetool/react-spline";
+import { useState } from "react";
+import { cn } from "@/lib/utils";
+
+interface SplineSceneProps {
+  sceneUrl: string;
+  className?: string;
+}
+
+export function SplineScene({ sceneUrl, className }: SplineSceneProps) {
+  const [isLoading, setIsLoading] = useState(true);
+
+  return (
+    <div className={cn("relative h-full w-full", className)}>
+      {isLoading && (
+        <div className="absolute inset-0 flex items-center justify-center bg-zinc-100 dark:bg-zinc-900">
+          <div className="h-10 w-10 animate-spin rounded-full border-4 border-zinc-200 border-t-indigo-500 dark:border-zinc-800" />
+        </div>
+      )}
+      <Spline
+        scene={sceneUrl}
+        onLoad={() => setIsLoading(false)}
+        className="h-full w-full"
+      />
+    </div>
+  );
+}
diff --git a/features/layout/components/header.tsx b/features/layout/components/header.tsx
index f25dbac..2c8cb99 100644
--- a/features/layout/components/header.tsx
+++ b/features/layout/components/header.tsx
@@ -1,33 +1,44 @@
-import { createClient } from "@/utils/supabase/server";
 import Link from "next/link";
-import { UserMenu } from "./user-menu";
-import { Button } from "@/components/ui/button";
+import { User } from "@supabase/supabase-js";
 import { AUTH_ROUTES } from "@/features/auth/constants";
+import { UserMenu } from "@/features/layout/components/user-menu";
+import { Button } from "@/components/ui/button";
 
-export async function Header() {
-  const supabase = await createClient();
-  const {
-    data: { user },
-  } = await supabase.auth.getUser();
+interface HeaderProps {
+  user: User | null;
+  showDashboardLink?: boolean;
+}
 
+export function Header({ user, showDashboardLink = false }: HeaderProps) {
   return (
     <header className="sticky top-0 z-40 flex h-14 w-full items-center justify-between border-b border-zinc-200 bg-white/75 px-6 backdrop-blur-md transition-all dark:border-zinc-800 dark:bg-black/75">
       <div className="flex items-center gap-2">
-        <Link href={AUTH_ROUTES.DASHBOARD} className="flex items-center gap-2">
+        <Link href={AUTH_ROUTES.HOME} className="flex items-center gap-2">
           <div className="h-6 w-6 rounded-md bg-zinc-900 dark:bg-zinc-50" />
           <span className="text-lg font-bold tracking-tight text-zinc-900 dark:text-zinc-50">
             AutoTrade
           </span>
         </Link>
       </div>
-
       <div className="flex items-center gap-4">
         {user ? (
-          <UserMenu user={user} />
+          <>
+            {showDashboardLink && (
+              <Button asChild variant="ghost" size="sm">
+                <Link href={AUTH_ROUTES.DASHBOARD}>대시보드</Link>
+              </Button>
+            )}
+            <UserMenu user={user} />
+          </>
         ) : (
-          <Button asChild variant="default" size="sm">
-            <Link href={AUTH_ROUTES.LOGIN}>로그인</Link>
-          </Button>
+          <>
+            <Button asChild variant="ghost" size="sm">
+              <Link href={AUTH_ROUTES.LOGIN}>로그인</Link>
+            </Button>
+            <Button asChild size="sm">
+              <Link href={AUTH_ROUTES.SIGNUP}>무료로 시작하기</Link>
+            </Button>
+          </>
         )}
       </div>
     </header>
diff --git a/package-lock.json b/package-lock.json
index 3c3cc73..ff4a2e3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,6 +14,8 @@
         "@radix-ui/react-label": "^2.1.8",
         "@radix-ui/react-separator": "^1.1.8",
         "@radix-ui/react-slot": "^1.2.4",
+        "@splinetool/react-spline": "^4.1.0",
+        "@splinetool/runtime": "^1.12.50",
         "@supabase/ssr": "^0.8.0",
         "@supabase/supabase-js": "^2.93.3",
         "@tanstack/react-query": "^5.90.20",
@@ -4383,6 +4385,37 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@splinetool/react-spline": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/@splinetool/react-spline/-/react-spline-4.1.0.tgz",
+      "integrity": "sha512-Y379gm17gw+1nxT/YXTCJnVIWuu7tsUH1tp/YxsYb0pZnc9Gljk7Om4Kpq7WPq0bZ4zidVCxf6xn6jgDcbHifQ==",
+      "dependencies": {
+        "blurhash": "2.0.5",
+        "lodash.debounce": "4.0.8",
+        "react-merge-refs": "2.1.1",
+        "thumbhash": "0.1.1"
+      },
+      "peerDependencies": {
+        "@splinetool/runtime": "*",
+        "next": ">=14.2.0",
+        "react": "*",
+        "react-dom": "*"
+      },
+      "peerDependenciesMeta": {
+        "next": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@splinetool/runtime": {
+      "version": "1.12.50",
+      "resolved": "https://registry.npmjs.org/@splinetool/runtime/-/runtime-1.12.50.tgz",
+      "integrity": "sha512-tzdG3D03WgiFD7xP47OAv03OfJmyLa0WDBf4qmQKap+RjHQXz3Uqq7P6kHMg/XXqII2eIqoD8gDKiOvgMZ8B9A==",
+      "dependencies": {
+        "on-change": "4.0.0",
+        "semver-compare": "1.0.0"
+      }
+    },
     "node_modules/@standard-schema/utils": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/@standard-schema/utils/-/utils-0.3.0.tgz",
@@ -5752,6 +5785,12 @@
         "baseline-browser-mapping": "dist/cli.js"
       }
     },
+    "node_modules/blurhash": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/blurhash/-/blurhash-2.0.5.tgz",
+      "integrity": "sha512-cRygWd7kGBQO3VEhPiTgq4Wc43ctsM+o46urrmPOiuAe+07fzlSB9OJVdpgDL0jPqXUVQ9ht7aq7kxOeJHRK+w==",
+      "license": "MIT"
+    },
     "node_modules/brace-expansion": {
       "version": "1.1.12",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
@@ -8240,6 +8279,12 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/lodash.debounce": {
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/lodash.debounce/-/lodash.debounce-4.0.8.tgz",
+      "integrity": "sha512-FT1yDzDYEoYWhnSGnpE/4Kj1fLZkDFyqRb7fNt6FdYOSxlUWAtp42Eh6Wb0rGIv/m9Bgo7x4GhQbm5Ys4SG5ow==",
+      "license": "MIT"
+    },
     "node_modules/lodash.merge": {
       "version": "4.6.2",
       "resolved": "https://registry.npmjs.org/lodash.merge/-/lodash.merge-4.6.2.tgz",
@@ -8620,6 +8665,18 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/on-change": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/on-change/-/on-change-4.0.0.tgz",
+      "integrity": "sha512-PTu7C9Jsz4b+sNMDpH0eZFTr7uxdOtoDWRnhaVNK50bgrrnW5nvbWI0jm5DG9qOoTnIhBzE9xoKVFPD9xgtbdg==",
+      "license": "MIT",
+      "engines": {
+        "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/sindresorhus/on-change?sponsor=1"
+      }
+    },
     "node_modules/optionator": {
       "version": "0.9.4",
       "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.9.4.tgz",
@@ -9079,6 +9136,16 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/react-merge-refs": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/react-merge-refs/-/react-merge-refs-2.1.1.tgz",
+      "integrity": "sha512-jLQXJ/URln51zskhgppGJ2ub7b2WFKGq3cl3NYKtlHoTG+dN2q7EzWrn3hN3EgPsTMvpR9tpq5ijdp7YwFZkag==",
+      "license": "MIT",
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/gregberge"
+      }
+    },
     "node_modules/react-remove-scroll": {
       "version": "2.7.2",
       "resolved": "https://registry.npmjs.org/react-remove-scroll/-/react-remove-scroll-2.7.2.tgz",
@@ -9339,6 +9406,12 @@
         "semver": "bin/semver.js"
       }
     },
+    "node_modules/semver-compare": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/semver-compare/-/semver-compare-1.0.0.tgz",
+      "integrity": "sha512-YM3/ITh2MJ5MtzaM429anh+x2jiLVjqILF4m4oyQB18W7Ggea7BfqdH/wGMK7dDiMghv/6WG7znWMwUDzJiXow==",
+      "license": "MIT"
+    },
     "node_modules/set-function-length": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/set-function-length/-/set-function-length-1.2.2.tgz",
@@ -9799,6 +9872,12 @@
         "url": "https://opencollective.com/webpack"
       }
     },
+    "node_modules/thumbhash": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/thumbhash/-/thumbhash-0.1.1.tgz",
+      "integrity": "sha512-kH5pKeIIBPQXAOni2AiY/Cu/NKdkFREdpH+TLdM0g6WA7RriCv0kPLgP731ady67MhTAqrVG/4mnEeibVuCJcg==",
+      "license": "MIT"
+    },
     "node_modules/tinyglobby": {
       "version": "0.2.15",
       "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.15.tgz",
diff --git a/package.json b/package.json
index 19f7a04..9c5f1d2 100644
--- a/package.json
+++ b/package.json
@@ -15,6 +15,8 @@
     "@radix-ui/react-label": "^2.1.8",
     "@radix-ui/react-separator": "^1.1.8",
     "@radix-ui/react-slot": "^1.2.4",
+    "@splinetool/react-spline": "^4.1.0",
+    "@splinetool/runtime": "^1.12.50",
     "@supabase/ssr": "^0.8.0",
     "@supabase/supabase-js": "^2.93.3",
     "@tanstack/react-query": "^5.90.20",