diff --git a/tradein-mvp/frontend/src/app/ui-preview/estimate/page.tsx b/tradein-mvp/frontend/src/app/ui-preview/estimate/page.tsx
index 31a6775e..47bdb4bb 100644
--- a/tradein-mvp/frontend/src/app/ui-preview/estimate/page.tsx
+++ b/tradein-mvp/frontend/src/app/ui-preview/estimate/page.tsx
@@ -119,6 +119,24 @@ function PreviewContent() {
       {/* Те же layout-классы, что у реальной страницы (page.tsx): .page → .result-col
           (flex-column gap, --container ширина). Без них карточки рендерились узко/«мобильно». */}
       <main className="page">
+        {/* #835: страница-результат рендерит HeroSummary как h2 — добавляем
+            визуально-скрытый h1 (page-has-heading-one). На реальной page.tsx h1
+            есть в page-title; здесь (preview, аудит) обёртки нет. */}
+        <h1
+          style={{
+            position: "absolute",
+            width: 1,
+            height: 1,
+            padding: 0,
+            margin: -1,
+            overflow: "hidden",
+            clip: "rect(0, 0, 0, 0)",
+            whiteSpace: "nowrap",
+            border: 0,
+          }}
+        >
+          Оценка стоимости квартиры
+        </h1>
         <section className="result-col">
           {/* 1. SourcesProgress */}
           <SourcesProgress estimate={FIXTURE_ESTIMATE} isPending={false} />
diff --git a/tradein-mvp/frontend/src/components/trade-in/DealsCard.tsx b/tradein-mvp/frontend/src/components/trade-in/DealsCard.tsx
index 600a1a92..627c103f 100644
--- a/tradein-mvp/frontend/src/components/trade-in/DealsCard.tsx
+++ b/tradein-mvp/frontend/src/components/trade-in/DealsCard.tsx
@@ -128,7 +128,7 @@ export function DealsCard({ estimate }: Props) {
             <th className="num">₽ / м²</th>
             <th className="num">Цена сделки</th>
             <th className="num">Дата</th>
-            <th />
+            <th aria-label="Действия" />
           </tr>
         </thead>
         <tbody>
diff --git a/tradein-mvp/frontend/src/components/trade-in/DistributionCard.tsx b/tradein-mvp/frontend/src/components/trade-in/DistributionCard.tsx
index 2be7d03e..e39214c8 100644
--- a/tradein-mvp/frontend/src/components/trade-in/DistributionCard.tsx
+++ b/tradein-mvp/frontend/src/components/trade-in/DistributionCard.tsx
@@ -94,7 +94,8 @@ export function DistributionCard({ estimate }: Props) {
         </div>
       </div>
 
-      <div style={{ width: "100%", height: 260, padding: "12px 8px 0" }}>
+      {/* #835: декоративный чарт — aria-hidden (данные в тексте/легенде карточки). */}
+      <div aria-hidden="true" style={{ width: "100%", height: 260, padding: "12px 8px 0" }}>
         <ResponsiveContainer>
           <BarChart data={bins} margin={{ top: 8, right: 16, left: 8, bottom: 8 }}>
             <CartesianGrid stroke="var(--border)" strokeDasharray="3 3" />
diff --git a/tradein-mvp/frontend/src/components/trade-in/ExposureCard.tsx b/tradein-mvp/frontend/src/components/trade-in/ExposureCard.tsx
index a5f13941..8c099d49 100644
--- a/tradein-mvp/frontend/src/components/trade-in/ExposureCard.tsx
+++ b/tradein-mvp/frontend/src/components/trade-in/ExposureCard.tsx
@@ -72,7 +72,9 @@ export function ExposureCard({ estimate }: Props) {
         </div>
       </div>
 
-      <div style={{ width: "100%", height: 280, padding: "12px 8px 0" }}>
+      {/* #835: чарт декоративный (данные — в заголовке/легенде/тексте карточки);
+          aria-hidden убирает recharts symbol'ы role="img" без accessible-name. */}
+      <div aria-hidden="true" style={{ width: "100%", height: 280, padding: "12px 8px 0" }}>
         <ResponsiveContainer>
           <ScatterChart margin={{ top: 8, right: 20, left: 8, bottom: 16 }}>
             <CartesianGrid stroke="var(--border)" strokeDasharray="3 3" />
diff --git a/tradein-mvp/frontend/src/components/trade-in/ListingsCard.tsx b/tradein-mvp/frontend/src/components/trade-in/ListingsCard.tsx
index dfb5042d..be498703 100644
--- a/tradein-mvp/frontend/src/components/trade-in/ListingsCard.tsx
+++ b/tradein-mvp/frontend/src/components/trade-in/ListingsCard.tsx
@@ -258,7 +258,7 @@ export function ListingsCard({ estimate, estimateId }: Props) {
             <th className="num">₽ / м²</th>
             <th className="num">Стоимость</th>
             <th className="num">Дист.</th>
-            <th />
+            <th aria-label="Действия" />
           </tr>
         </thead>
         <tbody>
diff --git a/tradein-mvp/frontend/src/components/trade-in/PriceHistoryChart.tsx b/tradein-mvp/frontend/src/components/trade-in/PriceHistoryChart.tsx
index 1322756e..fec51da6 100644
--- a/tradein-mvp/frontend/src/components/trade-in/PriceHistoryChart.tsx
+++ b/tradein-mvp/frontend/src/components/trade-in/PriceHistoryChart.tsx
@@ -52,7 +52,8 @@ export function PriceHistoryChart({ points }: Props) {
           Медиана ₽/м² по году · Avito + Яндекс (по {totalLots} лотам)
         </small>
       </header>
-      <div style={{ width: "100%", height: 240 }}>
+      {/* #835: декоративный чарт — aria-hidden (данные в тексте/легенде карточки). */}
+      <div aria-hidden="true" style={{ width: "100%", height: 240 }}>
         <ResponsiveContainer>
           <LineChart
             data={pivoted}
diff --git a/tradein-mvp/frontend/src/components/trade-in/PriceTrendCard.tsx b/tradein-mvp/frontend/src/components/trade-in/PriceTrendCard.tsx
index ff313db3..63ccf090 100644
--- a/tradein-mvp/frontend/src/components/trade-in/PriceTrendCard.tsx
+++ b/tradein-mvp/frontend/src/components/trade-in/PriceTrendCard.tsx
@@ -71,7 +71,8 @@ export function PriceTrendCard({ estimate }: Props) {
         </div>
       </div>
 
-      <div style={{ width: "100%", height: 240, padding: "12px 8px 0" }}>
+      {/* #835: декоративный чарт — aria-hidden (данные в тексте/легенде карточки). */}
+      <div aria-hidden="true" style={{ width: "100%", height: 240, padding: "12px 8px 0" }}>
         <ResponsiveContainer>
           <LineChart data={data} margin={{ top: 8, right: 16, left: 8, bottom: 8 }}>
             <CartesianGrid stroke="var(--border)" strokeDasharray="3 3" />
diff --git a/tradein-mvp/frontend/src/components/trade-in/StreetDealsCard.tsx b/tradein-mvp/frontend/src/components/trade-in/StreetDealsCard.tsx
index 89d90144..ab673029 100644
--- a/tradein-mvp/frontend/src/components/trade-in/StreetDealsCard.tsx
+++ b/tradein-mvp/frontend/src/components/trade-in/StreetDealsCard.tsx
@@ -165,7 +165,7 @@ export function StreetDealsCard({ estimate }: Props) {
             <th className="num">₽/м²</th>
             <th className="num">Дата</th>
             {hasAnyListing && <th>Объявление до сделки</th>}
-            <th />
+            <th aria-label="Действия" />
           </tr>
         </thead>
         <tbody>