diff --git a/apps/web/public/app.js b/apps/web/public/app.js
index e9893bf..39238bf 100644
--- a/apps/web/public/app.js
+++ b/apps/web/public/app.js
@@ -817,11 +817,25 @@ function updateMarkers({ fitBounds = false } = {}) {
     updateMarker(location);
   }
 
+  updateMarkerSelectionClasses();
+
   if (fitBounds && state.markers.size > 0) {
     fitMapToLocations();
   }
 }
 
+function updateMarkerSelectionClasses() {
+  for (const [driverId, marker] of state.markers) {
+    const element = marker.provider === "leaflet"
+      ? marker.marker.getElement?.()
+      : marker.element;
+
+    if (element) {
+      element.classList.toggle("is-selected", state.selectedDriverId === driverId);
+    }
+  }
+}
+
 function updateInitialMapFit() {
   if (state.hasFittedInitialLocations || !state.map || !state.locations.size) return;
 
@@ -889,12 +903,14 @@ function updateKakaoMarker(location) {
         content: markerElement,
         yAnchor: 1
       }),
+      element: markerElement,
       currentPosition: targetPosition
     };
     marker.overlay.setMap(state.map);
     state.markers.set(location.driverId, marker);
   } else {
     marker.overlay.setContent(markerElement);
+    marker.element = markerElement;
     animateMarkerPosition(marker, targetPosition);
   }
 }
@@ -906,12 +922,13 @@ function updateLeafletMarker(location) {
   const leafletPosition = [targetPosition.latitude, targetPosition.longitude];
   const existingMarker = state.markers.get(location.driverId);
   const markerHeading = resolveMarkerHeading(location, existingMarker?.currentPosition, targetPosition);
+  const selectedClass = state.selectedDriverId === location.driverId ? "is-selected" : "";
   const icon = L.divIcon({
-    className: `leaflet-truck-marker truck-marker ${status.key} ${vehicleType.className}`,
+    className: `leaflet-truck-marker truck-marker ${status.key} ${vehicleType.className} ${selectedClass}`,
     html: createTruckMarkerHtml(location, vehicleType, markerHeading),
-    iconSize: [86, 56],
-    iconAnchor: [43, 56],
-    popupAnchor: [0, -44]
+    iconSize: [106, 82],
+    iconAnchor: [53, 78],
+    popupAnchor: [0, -66]
   });
 
   let marker = existingMarker;
@@ -936,7 +953,8 @@ function updateLeafletMarker(location) {
 function createTruckMarkerElement(location, status, heading) {
   const vehicleType = getVehicleType(location);
   const markerElement = document.createElement("button");
-  markerElement.className = `truck-marker ${status.key} ${vehicleType.className}`;
+  const selectedClass = state.selectedDriverId === location.driverId ? "is-selected" : "";
+  markerElement.className = `truck-marker ${status.key} ${vehicleType.className} ${selectedClass}`;
   markerElement.type = "button";
   markerElement.title = `${vehicleType.label} ${location.vehicleNo || location.driverId}`;
   markerElement.setAttribute("aria-label", `${vehicleType.label} ${location.vehicleNo || location.driverId} 위치 보기`);
@@ -952,6 +970,7 @@ function createTruckMarkerHtml(location, vehicleType = getVehicleType(location),
   const label = location.vehicleNo ? location.vehicleNo.slice(-4) : location.driverId.slice(0, 4);
   const rotation = normalizeMarkerRotation(heading);
   return `
+    <span class="truck-marker__halo" aria-hidden="true"></span>
     <span class="truck-marker__vehicle" style="--truck-heading: ${rotation}deg">
       <span class="truck-marker__body"></span>
       <span class="truck-marker__cab"></span>
@@ -1300,6 +1319,7 @@ function openMarkerActionPanel(location) {
   renderMarkerActionPanel(location);
   elements.markerActionPanel.classList.remove("is-hidden");
   render();
+  updateMarkerSelectionClasses();
 }
 
 function hideMarkerActionPanel() {
@@ -1313,6 +1333,7 @@ function closeMarkerActionPanel() {
   }
   state.selectedDriverId = "";
   render();
+  updateMarkerSelectionClasses();
 }
 
 function renderMarkerActionPanel(location) {
@@ -1374,6 +1395,7 @@ function showVehicleRoute(location) {
   clearInfoOverlay();
   renderRouteFocusPanel(location);
   render();
+  updateMarkerSelectionClasses();
 
   if (!state.map || !state.mapProvider) return;
 
@@ -1390,6 +1412,7 @@ function showVehicleCargo(location) {
   clearRouteOverlay();
   renderCargoFocusPanel(location);
   render();
+  updateMarkerSelectionClasses();
   showInfoOverlay(location);
 }
 
@@ -1400,6 +1423,7 @@ function showVehicleHistory(location) {
   clearInfoOverlay();
   renderRouteFocusPanel(location);
   render();
+  updateMarkerSelectionClasses();
   renderRoutePreview(location, { fit: false });
   loadLocationHistory(location);
 }
@@ -1412,6 +1436,7 @@ function showVehicleCenter(location) {
   clearRouteOverlay();
   renderCurrentLocationPanel(location);
   render();
+  updateMarkerSelectionClasses();
 
   if (state.map && state.mapProvider) {
     centerMapOnLocation(location, { zoom: true });
@@ -1484,6 +1509,7 @@ function focusLocation(location) {
   loadLocationHistory(location);
   renderRouteFocusPanel(location);
   render();
+  updateMarkerSelectionClasses();
 
   if (!state.map || !state.mapProvider) return;
 
@@ -1553,6 +1579,7 @@ function closeHistoryDrawer() {
   clearInfoOverlay();
   renderRouteFocusPanel(null);
   render();
+  updateMarkerSelectionClasses();
 }
 
 function showInfoOverlay(location) {
diff --git a/apps/web/public/styles.css b/apps/web/public/styles.css
index a022ecf..2c3a7d2 100644
--- a/apps/web/public/styles.css
+++ b/apps/web/public/styles.css
@@ -1053,98 +1053,155 @@ button:hover {
   --truck-color: var(--blue);
   --truck-cab: #1556b8;
   --truck-accent: rgba(255, 255, 255, 0.2);
+  --marker-status: var(--green);
+  --marker-outline: #ffffff;
   --truck-heading: 0deg;
-  --body-width: 42px;
-  --body-height: 24px;
-  --cab-width: 19px;
+  --body-width: 50px;
+  --body-height: 28px;
+  --cab-width: 22px;
   position: relative;
   display: grid;
   place-items: center;
-  width: 86px;
-  min-width: 86px;
-  height: 56px;
-  min-height: 56px;
+  width: 106px;
+  min-width: 106px;
+  height: 82px;
+  min-height: 82px;
   border: 0;
   padding: 0;
   background: transparent;
   color: #ffffff;
-  filter: drop-shadow(0 8px 13px rgba(16, 32, 48, 0.28));
+  filter:
+    drop-shadow(0 2px 0 rgba(255, 255, 255, 0.92))
+    drop-shadow(0 10px 16px rgba(16, 32, 48, 0.34));
   font-family: inherit;
   cursor: pointer;
   transition: filter 0.18s ease, transform 0.18s ease;
 }
 
-.truck-marker:hover {
-  filter: drop-shadow(0 10px 16px rgba(16, 32, 48, 0.34));
+.truck-marker:hover,
+.truck-marker.is-selected {
+  z-index: 8;
+  filter:
+    drop-shadow(0 2px 0 rgba(255, 255, 255, 0.96))
+    drop-shadow(0 13px 20px rgba(16, 32, 48, 0.44));
   transform: translateY(-1px);
 }
 
 .truck-marker.stale {
   --truck-color: var(--amber);
   --truck-cab: #8f4307;
+  --marker-status: var(--amber);
 }
 
 .truck-marker.offline {
   --truck-color: var(--red);
   --truck-cab: #8f1d15;
+  --marker-status: var(--red);
 }
 
 .truck-marker.type-trailer {
-  --truck-color: #334155;
-  --truck-cab: #0f172a;
-  --body-width: 62px;
-  --body-height: 24px;
+  --truck-color: #7c3aed;
+  --truck-cab: #4c1d95;
+  --body-width: 70px;
+  --body-height: 27px;
 }
 
 .truck-marker.type-container {
-  --truck-color: #475569;
-  --truck-cab: #1e293b;
-  --body-width: 58px;
-  --body-height: 24px;
+  --truck-color: #f97316;
+  --truck-cab: #c2410c;
+  --body-width: 66px;
+  --body-height: 27px;
   --truck-accent: repeating-linear-gradient(
     90deg,
-    rgba(255, 255, 255, 0.18) 0 2px,
-    transparent 2px 8px
+    rgba(255, 255, 255, 0.32) 0 2px,
+    transparent 2px 9px
   );
 }
 
 .truck-marker.type-box,
 .truck-marker.type-wing {
-  --body-width: 48px;
-  --body-height: 25px;
+  --truck-color: #059669;
+  --truck-cab: #047857;
+  --body-width: 56px;
+  --body-height: 28px;
 }
 
 .truck-marker.type-van {
-  --truck-color: #0284c7;
+  --truck-color: #0ea5e9;
   --truck-cab: #0369a1;
-  --body-width: 34px;
-  --body-height: 21px;
-  --cab-width: 22px;
+  --body-width: 40px;
+  --body-height: 24px;
+  --cab-width: 25px;
 }
 
 .truck-marker.type-cold {
-  --truck-color: #0e7490;
+  --truck-color: #0891b2;
   --truck-cab: #155e75;
-  --body-width: 47px;
-  --body-height: 25px;
+  --body-width: 55px;
+  --body-height: 28px;
   --truck-accent: linear-gradient(135deg, rgba(255, 255, 255, 0.28), transparent 45%);
 }
 
 .truck-marker.stale {
   --truck-color: var(--amber);
   --truck-cab: #8f4307;
+  --marker-status: var(--amber);
 }
 
 .truck-marker.offline {
   --truck-color: var(--red);
   --truck-cab: #8f1d15;
+  --marker-status: var(--red);
+}
+
+.truck-marker::after {
+  content: "";
+  position: absolute;
+  top: 6px;
+  right: 14px;
+  z-index: 4;
+  width: 12px;
+  height: 12px;
+  border: 2px solid #ffffff;
+  border-radius: 50%;
+  background: var(--marker-status);
+  box-shadow: 0 2px 7px rgba(15, 23, 42, 0.32);
+  pointer-events: none;
+}
+
+.truck-marker__halo {
+  position: absolute;
+  top: 5px;
+  left: 50%;
+  z-index: 0;
+  width: 98px;
+  height: 50px;
+  border: 2px solid rgba(15, 23, 42, 0.12);
+  border-radius: 999px;
+  background:
+    radial-gradient(circle at 48% 46%, rgba(255, 255, 255, 0.98) 0 54%, rgba(255, 255, 255, 0.82) 55% 100%);
+  box-shadow:
+    0 0 0 2px rgba(255, 255, 255, 0.72),
+    0 8px 18px rgba(15, 23, 42, 0.24);
+  transform: translateX(-50%);
+  pointer-events: none;
+}
+
+.truck-marker.is-selected .truck-marker__halo {
+  border-color: rgba(31, 111, 235, 0.78);
+  box-shadow:
+    0 0 0 3px rgba(255, 255, 255, 0.86),
+    0 0 0 6px rgba(31, 111, 235, 0.22),
+    0 10px 22px rgba(15, 23, 42, 0.28);
 }
 
 .truck-marker__vehicle {
   position: relative;
+  z-index: 2;
   display: inline-flex;
   align-items: flex-end;
   justify-content: center;
+  margin-bottom: 12px;
   padding-bottom: 8px;
   transform: rotate(var(--truck-heading));
   transform-origin: 50% 44%;
@@ -1156,19 +1213,20 @@ button:hover {
   content: "";
   position: absolute;
   bottom: 1px;
-  width: 7px;
-  height: 7px;
-  border: 2px solid #ffffff;
+  width: 8px;
+  height: 8px;
+  border: 2px solid var(--marker-outline);
   border-radius: 50%;
   background: #17212b;
+  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.14);
 }
 
 .truck-marker__vehicle::before {
-  left: 11px;
+  left: 12px;
 }
 
 .truck-marker__vehicle::after {
-  right: 12px;
+  right: 13px;
 }
 
 .truck-marker__body {
@@ -1176,12 +1234,13 @@ button:hover {
   display: block;
   width: var(--body-width);
   height: var(--body-height);
-  border: 2px solid #ffffff;
+  border: 3px solid var(--marker-outline);
   border-right: 0;
-  border-radius: 5px 0 0 5px;
+  border-radius: 7px 0 0 6px;
   background:
     var(--truck-accent),
     var(--truck-color);
+  box-shadow: inset 0 -5px 0 rgba(15, 23, 42, 0.13);
 }
 
 .truck-marker.type-van .truck-marker__body {
@@ -1191,19 +1250,20 @@ button:hover {
 .truck-marker__label {
   position: absolute;
   left: 50%;
-  bottom: 0;
+  bottom: 2px;
+  z-index: 3;
   display: inline-flex;
   align-items: center;
   gap: 4px;
-  max-width: 82px;
-  min-height: 18px;
-  padding: 2px 6px;
-  border: 1px solid rgba(255, 255, 255, 0.7);
+  max-width: 98px;
+  min-height: 21px;
+  padding: 2px 7px;
+  border: 2px solid rgba(255, 255, 255, 0.9);
   border-radius: 999px;
-  background: rgba(15, 23, 42, 0.88);
-  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.22);
+  background: rgba(15, 23, 42, 0.94);
+  box-shadow: 0 5px 12px rgba(15, 23, 42, 0.3);
   color: #ffffff;
-  font-size: 10px;
+  font-size: 11px;
   font-weight: 900;
   line-height: 1.1;
   transform: translateX(-50%);
@@ -1225,9 +1285,10 @@ button:hover {
   position: relative;
   width: var(--cab-width);
   height: calc(var(--body-height) - 3px);
-  border: 2px solid #ffffff;
-  border-radius: 0 6px 5px 0;
+  border: 3px solid var(--marker-outline);
+  border-radius: 0 8px 6px 0;
   background: var(--truck-cab);
+  box-shadow: inset 0 -4px 0 rgba(15, 23, 42, 0.14);
 }
 
 .truck-marker__cab::before {
@@ -1246,6 +1307,10 @@ button:hover {
   background: transparent;
 }
 
+.leaflet-truck-marker.is-selected {
+  z-index: 1000 !important;
+}
+
 .kakao-popup {
   min-width: 180px;
   padding: 12px;