diff --git a/.cursor/rules/70-phone.mdc b/.cursor/rules/70-phone.mdc
new file mode 100644
index 0000000..f2d3fca
--- /dev/null
+++ b/.cursor/rules/70-phone.mdc
@@ -0,0 +1,18 @@
+---
+description: Phone layout for DETRO. Phones are the primary screen.
+alwaysApply: true
+---
+
+# Phone
+
+Phones are the primary screen. A layout that only fits at 960px is unfinished. Laptop layout at 960px and above stays as it is.
+
+Check 320, 390, and 430 CSS pixels. The page does not scroll sideways.
+
+- One column. Touch targets stay at least 44px. Padding and type around them are tighter than on a laptop.
+- The route strip keeps one colored line. Station names wrap underneath it and do not overlap.
+- A station name stays on one line. A title wraps at the arrow between the two stations.
+- A pair of actions may sit side by side. If a label needs three lines, stack that row.
+- The header is the mark plus four tabs. It stays on screen, clears the safe area, and does not cover the first line of the page.
+- On City, the map is visible without scrolling. The trip sheet is the part that scrolls.
+- Do not add a banner, a tutorial, or extra chrome to fix spacing.
diff --git a/src/index.css b/src/index.css
index 296b333..e0d4940 100644
--- a/src/index.css
+++ b/src/index.css
@@ -189,7 +189,7 @@ summary:active {
   flex-direction: column;
   align-items: stretch;
   gap: 6px;
-  padding: 8px 12px;
+  padding: max(8px, env(safe-area-inset-top)) 12px 8px;
   background: #fff;
   border-bottom: 1px solid var(--line);
 }
@@ -914,6 +914,17 @@ ul[role="listbox"] li { margin: 0; }
   overflow-wrap: break-word;
 }
 
+.board-names {
+  display: none;
+  margin: 0.55rem 0 0;
+  padding: 0;
+  list-style: none;
+}
+
+.place-name {
+  white-space: nowrap;
+}
+
 .trip-row {
   display: flex;
   flex-wrap: wrap;
@@ -1971,6 +1982,129 @@ summary {
   }
 }
 
+@media (max-width: 719px) {
+  .sheet {
+    gap: 12px;
+    padding: 12px;
+  }
+
+  .pane,
+  .planner,
+  .map-intro,
+  .map-list,
+  .itinerary,
+  .ticket {
+    padding: 12px;
+  }
+
+  .choices {
+    grid-template-columns: 1fr;
+    gap: 6px;
+  }
+
+  .choices button {
+    min-height: 44px;
+    padding: 0.35rem 0.5rem;
+    font-size: 0.92rem;
+  }
+
+  .choice-detail {
+    font-size: 0.78rem;
+    line-height: 1.25;
+  }
+
+  .board {
+    padding: 0.7rem 0.75rem;
+  }
+
+  .board-line {
+    min-width: 0;
+    align-items: center;
+  }
+
+  .board-joint {
+    width: auto;
+  }
+
+  .board-name {
+    display: none;
+  }
+
+  .board-seg::before {
+    left: -9px;
+    right: -9px;
+  }
+
+  .board-names {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.15rem 0.35rem;
+    font-size: 0.78rem;
+    font-weight: 700;
+    line-height: 1.3;
+  }
+
+  .board-names li:not(:last-child)::after {
+    content: " ·";
+    font-weight: 600;
+    color: var(--muted);
+  }
+
+  .itinerary h2,
+  .city-route-bar h2,
+  .map-route-title {
+    font-size: 1.15rem;
+  }
+
+  .stats {
+    gap: 8px;
+  }
+
+  .stats div {
+    padding: 10px;
+  }
+
+  .stats dd,
+  .depart-clock {
+    font-size: 1.35rem;
+  }
+
+  .city-route-bar {
+    padding: 0.75rem 0.75rem 0.15rem;
+  }
+
+  .city-route-body {
+    gap: 10px;
+    padding: 0.55rem 0.75rem 1rem;
+  }
+
+  .city-split {
+    grid-template-rows: minmax(14rem, 0.85fr) minmax(0, 1.15fr);
+  }
+
+  .result .zoom-row {
+    display: grid;
+    grid-template-columns: 1fr 1fr;
+  }
+
+  .result .zoom-row button {
+    white-space: normal;
+    min-height: 44px;
+  }
+}
+
+@media (max-width: 359px) {
+  .mark-tag {
+    display: none;
+  }
+
+  .tabbar a {
+    gap: 0.2rem;
+    padding: 0 4px;
+    font-size: 0.78rem;
+  }
+}
+
 @keyframes city-pane-in {
   from { opacity: 0; transform: translateY(14px); }
   to { opacity: 1; transform: none; }
diff --git a/src/ui/CityMap.tsx b/src/ui/CityMap.tsx
index b5f08c2..0b66553 100644
--- a/src/ui/CityMap.tsx
+++ b/src/ui/CityMap.tsx
@@ -434,9 +434,9 @@ export function CityMap({
               <h2 id="city-route-title">
                 {shown ? (
                   <>
-                    {shown.originName}
+                    <span className="place-name">{shown.originName}</span>
                     <span aria-hidden="true"> → </span>
-                    {shown.destinationName}
+                    <span className="place-name">{shown.destinationName}</span>
                   </>
                 ) : (
                   copy.loadingRoute
diff --git a/src/ui/MapView.tsx b/src/ui/MapView.tsx
index e504733..5e366ad 100644
--- a/src/ui/MapView.tsx
+++ b/src/ui/MapView.tsx
@@ -115,7 +115,9 @@ export function MapView({
       {journey && journey.legs.length > 0 ? (
         <div className="route-on-map">
           <p className="map-route-title">
-            {journey.originName} → {journey.destinationName}
+            <span className="place-name">{journey.originName}</span>
+            <span aria-hidden="true"> → </span>
+            <span className="place-name">{journey.destinationName}</span>
           </p>
           <RouteBoard journey={journey} lines={lines} lang={lang} />
           <div className="route-lines">
diff --git a/src/ui/PlanView.tsx b/src/ui/PlanView.tsx
index e94efda..637747f 100644
--- a/src/ui/PlanView.tsx
+++ b/src/ui/PlanView.tsx
@@ -477,10 +477,10 @@ export function JourneyCard({
       <RouteBoard journey={journey} lines={lines} lang={lang} />
       <h2>
         <span className="sr-only">{copy.from} </span>
-        {journey.originName}
+        <span className="place-name">{journey.originName}</span>
         <span aria-hidden="true"> → </span>
         <span className="sr-only"> {copy.to} </span>
-        {journey.destinationName}
+        <span className="place-name">{journey.destinationName}</span>
       </h2>
       <TripMeta copy={copy} journey={journey} />
       <dl className="stats">
diff --git a/src/ui/RouteBoard.tsx b/src/ui/RouteBoard.tsx
index c88cae8..e228c16 100644
--- a/src/ui/RouteBoard.tsx
+++ b/src/ui/RouteBoard.tsx
@@ -40,6 +40,11 @@ export function RouteBoard({
           </div>
         ))}
       </div>
+      <ol className="board-names">
+        {names.map((name, index) => (
+          <li key={`${name}-${index}`}>{name}</li>
+        ))}
+      </ol>
     </div>
   )
 }