diff --git a/loko/mobile/templates/mobile/assets/assets_index_mobile.html b/loko/mobile/templates/mobile/assets/assets_index_mobile.html
index 66c5f29..cae50c5 100644
--- a/loko/mobile/templates/mobile/assets/assets_index_mobile.html
+++ b/loko/mobile/templates/mobile/assets/assets_index_mobile.html
@@ -312,6 +312,25 @@
             transform: scale(1.2);
             filter: drop-shadow(0 3px 8px rgba(0,0,0,0.6));
         }
+        .asset-map-marker-sign i {
+            display: inline-flex;
+            align-items: center;
+            justify-content: center;
+            width: 28px;
+            height: 28px;
+            border-radius: 4px;
+            background: #ffffff;
+            border: 2px solid #0022ff;
+            color: #0022ff;
+            font-size: 1rem;
+            box-shadow: 0 1px 4px rgba(0,0,0,0.35);
+            pointer-events: none;
+            transition: transform 0.15s ease;
+        }
+        .asset-map-marker-sign:hover i, .asset-map-marker-sign:active i {
+            transform: scale(1.2);
+            box-shadow: 0 2px 8px rgba(0,0,0,0.5);
+        }
 
         /* Marqueur spécifique poteau de signalisation (symbole desktop : socle circulaire + tige verticale) */
         .asset-map-marker-pole {
@@ -448,6 +467,12 @@
             transform: scale(1.25);
             filter: drop-shadow(0 0 5px #eab308) drop-shadow(0 0 10px #fde047) drop-shadow(0 3px 6px rgba(0,0,0,0.5)) !important;
         }
+        .asset-map-marker-sign.selected i {
+            border-color: #ca8a04;
+            color: #854d0e;
+            transform: scale(1.2);
+            box-shadow: 0 0 10px rgba(234, 179, 8, 0.85);
+        }
         .asset-map-marker-sign.selected::after {
             content: '';
             position: absolute;
@@ -1490,7 +1515,7 @@
 
                     const dLon = Math.abs(other.lon - asset.lon);
                     const dLat = Math.abs(other.lat - asset.lat);
-                    const isSameLocation = samePole || (dLon < 0.00003 && dLat < 0.00003);
+                    const isSameLocation = samePole || (dLon < 0.00005 && dLat < 0.00005);
 
                     if (isSameLocation) {
                         group.push(other);
@@ -1593,7 +1618,9 @@
                         activeMarkers.push(marker);
                     }
 
-                    // 2. Calcul de l'offset vertical pour chaque panneau sur le poteau (identique à la version desktop)
+                    // 2. Calcul des offsets verticaux pour chaque panneau sur le poteau
+                    // vertical_order = 1 est le panneau principal placé au SOMMET du mât.
+                    // Les panneaux secondaires / panonceaux (vertical_order > 1) se succèdent vers le bas le long du mât.
                     signPanels.sort((a, b) => {
                         const orderA = a.vertical_order != null ? Number(a.vertical_order) : (a.panel_vertical_order != null ? Number(a.panel_vertical_order) : 1);
                         const orderB = b.vertical_order != null ? Number(b.vertical_order) : (b.panel_vertical_order != null ? Number(b.panel_vertical_order) : 1);
@@ -1601,29 +1628,21 @@
                     });
 
                     const hasBaseSupport = otherAssets.length > 0;
-                    const MIN_PANEL_BASE_UP_OFFSET_PX = 36;
-                    const DEFAULT_PANEL_HEIGHT_PX = 32;
-                    const PANEL_STACK_GAP_PX = 2;
+                    const N = signPanels.length;
+                    const highestPanelIndex = Math.max(0, N - 1);
+                    // Le sommet de la tige du poteau (topOffset)
+                    // Si support à la base : le panneau le plus bas a son centre à -36px (garde de ~20px au-dessus du socle)
+                    // et chaque panneau au-dessus ajoute 34px.
+                    // Le panneau au sommet (index 0, vertical_order = 1) est à topOffset.
+                    // Chaque panneau suivant (index i) est positionné sous le précédent : topOffset + (i * 34).
+                    const topOffset = hasBaseSupport ? -(36 + (highestPanelIndex * 34)) : -(highestPanelIndex * 34);
 
-                    let cumulativeOffset = -MIN_PANEL_BASE_UP_OFFSET_PX;
-                    let previousHeight = DEFAULT_PANEL_HEIGHT_PX;
+                    // Coordonnées de référence partagées pour l'alignement parfait sur la tige
+                    const refLon = hasBaseSupport ? otherAssets[0].lon : (signPanels[0].lon);
+                    const refLat = hasBaseSupport ? otherAssets[0].lat : (signPanels[0].lat);
 
                     signPanels.forEach((panel, index) => {
-                        const renderHeight = DEFAULT_PANEL_HEIGHT_PX;
-
-                        if (index === 0) {
-                            if (hasBaseSupport) {
-                                cumulativeOffset = -MIN_PANEL_BASE_UP_OFFSET_PX - Math.max(0, (renderHeight - DEFAULT_PANEL_HEIGHT_PX) / 2);
-                            } else if (signPanels.length > 1) {
-                                cumulativeOffset = 0 - Math.max(0, (renderHeight - DEFAULT_PANEL_HEIGHT_PX) / 2);
-                            } else {
-                                cumulativeOffset = 0;
-                            }
-                        } else {
-                            cumulativeOffset -= (previousHeight + renderHeight) / 2 + PANEL_STACK_GAP_PX;
-                        }
-
-                        previousHeight = renderHeight;
+                        const panelOffset = topOffset + (index * 34);
 
                         const symbology = (typeof AssetSymbology !== 'undefined')
                             ? AssetSymbology.getAssetSymbology(panel)
@@ -1635,7 +1654,7 @@
                         const el = document.createElement('div');
                         el.className = 'asset-map-marker-sign';
                         el.innerHTML = iconHtml;
-                        el.style.zIndex = String(10 + index);
+                        el.style.zIndex = String(10 + (N - index));
 
                         el.addEventListener('click', (e) => {
                             e.stopPropagation();
@@ -1645,10 +1664,12 @@
                             openBottomSheet(panel, false, group);
                         });
 
-                        const marker = new maplibregl.Marker({ element: el, offset: [0, cumulativeOffset] })
-                            .setLngLat([panel.lon, panel.lat])
+                        const marker = new maplibregl.Marker({ element: el, offset: [0, panelOffset] })
+                            .setLngLat([refLon, refLat])
                             .addTo(map);
 
+                        marker.setOffset([0, panelOffset]);
+
                         marker._asset = panel;
                         marker._group = group;
                         marker._element = el;