diff --git a/app/gateway-frontend/e2e/legacy-log-html.spec.ts b/app/gateway-frontend/e2e/legacy-log-html.spec.ts
index 3773e1df..e525ec94 100644
--- a/app/gateway-frontend/e2e/legacy-log-html.spec.ts
+++ b/app/gateway-frontend/e2e/legacy-log-html.spec.ts
@@ -115,6 +115,13 @@ for (const viewport of [
         await expect(lines.nth(1)).toContainText('<span class="name" onclick=');
         expect(await page.evaluate(() => (globalThis as Record<string, unknown>).__legacyLogXss)).toBeUndefined();
 
+        const pageFontFamily = await page.locator('body').evaluate((element) => getComputedStyle(element).fontFamily);
+        const historyFontFamily = await page
+            .locator('.status-history')
+            .evaluate((element) => getComputedStyle(element).fontFamily);
+        expect(historyFontFamily).toBe(pageFontFamily);
+        expect(historyFontFamily).toContain('Pretendard');
+
         const geometry = await lines.evaluateAll((elements) =>
             elements.map((element) => {
                 const rect = element.getBoundingClientRect();
@@ -144,7 +151,7 @@ for (const viewport of [
             const name = `legacy-log-gateway-${viewport.name}`;
             await writeFile(
                 resolve(artifactRoot, `${name}.json`),
-                `${JSON.stringify({ viewport, geometry }, null, 2)}\n`,
+                `${JSON.stringify({ viewport, pageFontFamily, historyFontFamily, geometry }, null, 2)}\n`,
                 'utf8'
             );
             await page.screenshot({ path: resolve(artifactRoot, `${name}.png`), fullPage: true });
diff --git a/app/gateway-frontend/src/views/HomeView.vue b/app/gateway-frontend/src/views/HomeView.vue
index 03361fd6..932f5ddf 100644
--- a/app/gateway-frontend/src/views/HomeView.vue
+++ b/app/gateway-frontend/src/views/HomeView.vue
@@ -362,7 +362,7 @@ const handlePasswordReset = async (): Promise<void> => {
     border-top: 1px solid #444;
     padding: 8px 12px;
     color: #ddd;
-    font-family: 'Times New Roman', serif;
+    font-family: inherit;
     font-size: 14px;
     line-height: 1.35;
 }
diff --git a/app/gateway-frontend/test/fontContract.test.mjs b/app/gateway-frontend/test/fontContract.test.mjs
new file mode 100644
index 00000000..d8ca7d12
--- /dev/null
+++ b/app/gateway-frontend/test/fontContract.test.mjs
@@ -0,0 +1,43 @@
+import assert from 'node:assert/strict';
+import { readFile, readdir } from 'node:fs/promises';
+import path from 'node:path';
+import { describe, it } from 'node:test';
+
+const sourceRoot = path.resolve(import.meta.dirname, '../src');
+const fontFamilyDeclaration = /font-family\s*:\s*([^;]+);/g;
+const fontShorthandDeclaration = /(?:^|[\s{])font\s*:\s*([^;]+);/gm;
+const forcedSerifFamily = /Times New Roman|(?<![\w-])serif(?![\w-])/i;
+
+const listStyleSources = async () => {
+    const entries = await readdir(sourceRoot, { recursive: true, withFileTypes: true });
+
+    return entries
+        .filter((entry) => entry.isFile() && (entry.name.endsWith('.css') || entry.name.endsWith('.vue')))
+        .map((entry) => path.join(entry.parentPath, entry.name))
+        .sort();
+};
+
+describe('gateway content font contract', () => {
+    it('does not force Times New Roman or a generic serif family', async () => {
+        const violations = [];
+
+        for (const file of await listStyleSources()) {
+            const source = await readFile(file, 'utf8');
+            for (const match of source.matchAll(fontFamilyDeclaration)) {
+                const value = match[1]?.trim() ?? '';
+                if (forcedSerifFamily.test(value)) {
+                    violations.push(`${path.relative(sourceRoot, file)}: font-family: ${value}`);
+                }
+            }
+
+            for (const match of source.matchAll(fontShorthandDeclaration)) {
+                const value = match[1]?.trim() ?? '';
+                if (forcedSerifFamily.test(value)) {
+                    violations.push(`${path.relative(sourceRoot, file)}: font: ${value}`);
+                }
+            }
+        }
+
+        assert.deepEqual(violations, []);
+    });
+});