diff --git a/index.css b/index.css
index bd00ee5..cee8f4c 100644
--- a/index.css
+++ b/index.css
@@ -5597,14 +5597,14 @@
 }
 
 .dashboard-description {
-  font-size: 10px;
+  font-size: 15px;
   color: var(--color-text-gray-500);
   margin-top: 0.125rem;
 }
 
 @media (min-width: 640px) {
   .dashboard-description {
-    font-size: 10px;
+    font-size: 15px;
   }
 }
 
@@ -5898,7 +5898,6 @@
   justify-content: space-between;
   align-items: flex-start;
   margin-bottom: 0.5rem;
-  margin-left: 2.5rem;
 }
 
 @media (min-width: 768px) {
@@ -6096,16 +6095,19 @@
 /* Mode Toggle */
 .mode-toggle {
   display: flex;
+  flex-shrink: 0;
   border: 1px solid var(--color-border-gray-700);
   border-radius: var(--radius-full);
   overflow: hidden;
 }
 
 .mode-btn {
+  min-width: 48px;
   padding: 0.375rem 0.875rem;
   background-color: transparent;
   color: var(--color-text-gray-400);
   font-size: var(--text-sm);
+  white-space: nowrap;
   font-weight: 600;
   cursor: pointer;
   border: none;
@@ -6503,23 +6505,16 @@
 /* Stats Grid 8 Columns */
 .stats-grid-8 {
   display: grid;
-  grid-template-columns: repeat(2, 1fr);
+  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
   gap: 0.5rem;
 }
 
 @media (min-width: 640px) {
   .stats-grid-8 {
-    grid-template-columns: repeat(4, 1fr);
     gap: 0.75rem;
   }
 }
 
-@media (min-width: 1024px) {
-  .stats-grid-8 {
-    grid-template-columns: repeat(8, 1fr);
-  }
-}
-
 /* Platform Metrics Grid 8 Columns */
 .platform-metrics-grid-8 {
   display: grid;
@@ -6758,7 +6753,7 @@
 .audience-bar-label {
   font-size: var(--text-xs);
   color: var(--color-text-gray-400);
-  width: 40px;
+  width: 60px;
   flex-shrink: 0;
 }
 
diff --git a/src/index.tsx b/src/index.tsx
index 5f2500c..7152cf1 100755
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -11,5 +11,7 @@ if (!rootElement) {
 
 const root = ReactDOM.createRoot(rootElement);
 root.render(
+  <React.StrictMode>
     <App />
+  </React.StrictMode>
 );
diff --git a/src/pages/Dashboard/DashboardContent.tsx b/src/pages/Dashboard/DashboardContent.tsx
index c3270d4..027e118 100755
--- a/src/pages/Dashboard/DashboardContent.tsx
+++ b/src/pages/Dashboard/DashboardContent.tsx
@@ -1,4 +1,3 @@
-
 import React, { useState, useEffect } from 'react';
 import { useTranslation } from 'react-i18next';
 import { authenticatedFetch, API_URL } from '../../utils/api';
@@ -9,6 +8,7 @@ import {
 
 // 환경변수에서 테스트 모드 확인
 const isTestPage = import.meta.env.VITE_IS_TESTPAGE === 'true';
+
 // =====================================================
 // Types
 // =====================================================
@@ -132,7 +132,7 @@ const MOCK_TOP_CONTENT: TopContent[] = [
 
 const MOCK_AUDIENCE_DATA: AudienceData = {
   ageGroups: [
-    { label: '18-24', percentage: 12 },
+    { label: '13-24', percentage: 12 },
     { label: '25-34', percentage: 35 },
     { label: '35-44', percentage: 28 },
     { label: '45-54', percentage: 18 },
@@ -140,11 +140,11 @@ const MOCK_AUDIENCE_DATA: AudienceData = {
   ],
   gender: { male: 42, female: 58 },
   topRegions: [
-    { region: '서울', percentage: 32 },
-    { region: '경기', percentage: 24 },
-    { region: '부산', percentage: 12 },
-    { region: '인천', percentage: 8 },
-    { region: '대구', percentage: 6 },
+    { region: '한국', percentage: 77 },
+    { region: '일본', percentage: 5 },
+    { region: '중국', percentage: 4 },
+    { region: '미국', percentage: 2 },
+    { region: '인도', percentage: 1 },
   ],
 };
 
@@ -338,7 +338,7 @@ const YearOverYearChart: React.FC<{
             tick={{ fill: 'rgba(255,255,255,0.4)', fontSize: 12 }}
             axisLine={false}
             tickLine={false}
-            interval={mode === 'day' ? 1 : 0}
+            interval={mode === 'day' ? 2 : 0}
           />
           <Tooltip content={<CustomTooltip />} />
           <Area
@@ -347,8 +347,8 @@ const YearOverYearChart: React.FC<{
             stroke="#a6ffea"
             strokeWidth={3}
             fill="url(#thisYearGradient)"
-            dot={{ fill: '#a6ffea', r: 4, filter: 'drop-shadow(0 0 6px rgba(166,255,234,0.6))' }}
-            activeDot={{ r: 6, fill: '#a6ffea' }}
+            dot={{ fill: '#a6ffea', r: 2, filter: 'drop-shadow(0 0 6px rgba(166,255,234,0.6))' }}
+            activeDot={{ r: 4, fill: '#a6ffea' }}
             isAnimationActive={true}
           />
           <Line
@@ -621,7 +621,10 @@ const DashboardContent: React.FC<DashboardContentProps> = ({ onNavigate }) => {
   // API 데이터 우선 사용, 없거나 영상 없음(isEmptyState) 시 Mock 데이터로 폴백
   const contentMetrics = (!isEmptyState && dashboardData?.contentMetrics?.length) ? dashboardData.contentMetrics : MOCK_CONTENT_METRICS;
   const topContent = (!isEmptyState && dashboardData?.topContent?.length) ? dashboardData.topContent : MOCK_TOP_CONTENT;
-  const hasRealAudienceData = !isEmptyState && !!dashboardData?.audienceData?.ageGroups?.length;
+  const hasRealAgeGroups = !isEmptyState && !!dashboardData?.audienceData?.ageGroups?.some(g => g.percentage > 0);
+  const hasRealGender = !isEmptyState && ((dashboardData?.audienceData?.gender?.male ?? 0) + (dashboardData?.audienceData?.gender?.female ?? 0)) > 0;
+  const hasRealTopRegions = !isEmptyState && !!dashboardData?.audienceData?.topRegions?.some(r => r.percentage > 0);
+  const hasRealAudienceData = hasRealAgeGroups && hasRealGender && hasRealTopRegions;
   const audienceData = hasRealAudienceData ? dashboardData!.audienceData : MOCK_AUDIENCE_DATA;
 
   // mode별 차트 데이터를 ChartDataPoint 통합 형식으로 변환
@@ -783,7 +786,7 @@ const DashboardContent: React.FC<DashboardContentProps> = ({ onNavigate }) => {
         <div className="flex items-center justify-between mb-4">
           <div>
             <h2 className="dashboard-section-title" style={{ marginBottom: '2px' }}>{t('dashboard.contentPerformance')}</h2>
-            <p style={{ fontSize: '12px', color: 'rgba(255,255,255,0.4)', margin: 0 }}>ADO2에서 업로드한 영상의 통계가 표시됩니다.</p>
+            <p style={{ fontSize: '12px', color: 'rgba(255,255,255,0.4)', margin: 0 }}>ADO2에서 업로드한 최근 30개의 영상 통계가 표시됩니다.</p>
           </div>
           <div className="mode-toggle">
             <button
@@ -859,49 +862,43 @@ const DashboardContent: React.FC<DashboardContentProps> = ({ onNavigate }) => {
           <h2 className="dashboard-section-title" style={{ marginBottom: '2px' }}>{t('dashboard.audienceInsights')}</h2>
           <p style={{ fontSize: '12px', color: 'rgba(255,255,255,0.4)', margin: 0 }}>선택한 채널의 통계가 표시됩니다.</p>
         </div>
-        {audienceData ? (
-          <div style={{ position: 'relative' }}>
-            <div className="audience-cards" style={!hasRealAudienceData && !showMockData ? { filter: 'blur(4px)', pointerEvents: 'none', userSelect: 'none' } : {}}>
-              <AnimatedItem index={0} baseDelay={1100}>
-                <div className="audience-card">
-                  <h3 className="audience-card-title">{t('dashboard.ageDistribution')}</h3>
-                  <AudienceBarChart data={audienceData.ageGroups} delay={1200} />
-                </div>
-              </AnimatedItem>
-              <AnimatedItem index={1} baseDelay={1100}>
-                <div className="audience-card">
-                  <h3 className="audience-card-title">{t('dashboard.genderDistribution')}</h3>
-                  <GenderChart male={audienceData.gender.male} female={audienceData.gender.female} delay={1300} />
-                </div>
-              </AnimatedItem>
-              <AnimatedItem index={2} baseDelay={1100}>
-                <div className="audience-card">
-                  <h3 className="audience-card-title">{t('dashboard.topRegions')}</h3>
-                  <AudienceBarChart data={audienceData.topRegions.map(r => ({ label: r.region, percentage: r.percentage }))} delay={1400} />
-                </div>
-              </AnimatedItem>
-            </div>
-            {dashboardData && !isEmptyState && !hasRealAudienceData && (
-              <div style={{ position: 'absolute', inset: 0, display: 'flex', alignItems: 'center', justifyContent: 'center', pointerEvents: 'none' }}>
-                <div style={{
-                  display: 'flex', flexDirection: 'column', alignItems: 'center', gap: '10px',
-                  background: 'rgba(0,0,0,0.45)',
-                  backdropFilter: 'blur(2px)',
-                  borderRadius: '12px',
-                  padding: '20px 28px',
-                }}>
-                  <p style={{ color: 'rgba(255,255,255,0.85)', fontSize: '14px', fontWeight: 500, margin: 0, textAlign: 'center' }}>
-                    누적 데이터가 부족하여 실제 시청자 데이터가 없습니다.
-                  </p>
-                </div>
+        <div style={{ position: 'relative' }}>
+          <div className="audience-cards" style={!hasRealAudienceData && !showMockData ? { filter: 'blur(4px)', pointerEvents: 'none', userSelect: 'none' } : {}}>
+            <AnimatedItem index={0} baseDelay={1100}>
+              <div className="audience-card">
+                <h3 className="audience-card-title">{t('dashboard.ageDistribution')}</h3>
+                <AudienceBarChart data={audienceData.ageGroups} delay={1200} />
               </div>
-            )}
+            </AnimatedItem>
+            <AnimatedItem index={1} baseDelay={1100}>
+              <div className="audience-card">
+                <h3 className="audience-card-title">{t('dashboard.genderDistribution')}</h3>
+                <GenderChart male={audienceData.gender.male} female={audienceData.gender.female} delay={1300} />
+              </div>
+            </AnimatedItem>
+            <AnimatedItem index={2} baseDelay={1100}>
+              <div className="audience-card">
+                <h3 className="audience-card-title">{t('dashboard.topRegions')}</h3>
+                <AudienceBarChart data={audienceData.topRegions.map(r => ({ label: r.region, percentage: r.percentage }))} delay={1400} />
+              </div>
+            </AnimatedItem>
           </div>
-        ) : (
-          <div style={{ textAlign: 'center', padding: '32px', opacity: 0.4 }}>
-            <span>{t('dashboard.noData') || '이 기간에 데이터가 없습니다.'}</span>
-          </div>
-        )}
+          {dashboardData && !isEmptyState && !hasRealAudienceData && (
+            <div style={{ position: 'absolute', inset: 0, display: 'flex', alignItems: 'center', justifyContent: 'center', pointerEvents: 'none' }}>
+              <div style={{
+                display: 'flex', flexDirection: 'column', alignItems: 'center', gap: '10px',
+                background: 'rgba(0,0,0,0.45)',
+                backdropFilter: 'blur(2px)',
+                borderRadius: '12px',
+                padding: '20px 28px',
+              }}>
+                <p style={{ color: 'rgba(255,255,255,0.85)', fontSize: '14px', fontWeight: 500, margin: 0, textAlign: 'center' }}>
+                  누적 데이터가 부족하여 실제 시청자 정보가 없습니다.
+                </p>
+              </div>
+            </div>
+          )}
+        </div>
       </AnimatedSection>
 
       {/* 개발자 모드 전용: mock 데이터 블러 해제 버튼 */}