diff --git a/src/static/css/style.css b/src/static/css/style.css
index d8c12d4..a2274f3 100644
--- a/src/static/css/style.css
+++ b/src/static/css/style.css
@@ -2490,6 +2490,67 @@ a.dev-source-pill:hover {
 .ht-strip-cell.has-snapshot {
     box-shadow: inset 0 -3px 0 var(--accent);
 }
+.ht-strip-cell.active {
+    background: var(--accent);
+    transform: scaleY(1.6);
+    box-shadow: var(--glow-accent-strong), inset 0 -3px 0 var(--accent);
+    z-index: 2;
+    position: relative;
+}
+.ht-strip-cell.active::after {
+    content: '▼';
+    position: absolute;
+    bottom: -10px;
+    left: 50%;
+    transform: translateX(-50%);
+    font-size: 8px;
+    color: var(--accent);
+    pointer-events: none;
+}
+.ht-strip:has(.ht-strip-cell.active) .ht-strip-cell:not(.active):not(.empty) {
+    opacity: 0.4;
+}
+
+/* Banner: aktiver Strip-Filter */
+.ht-strip-banner {
+    display: flex;
+    align-items: center;
+    gap: var(--sp-md);
+    padding: 6px 12px;
+    background: var(--tint-accent);
+    border: 1px solid var(--accent);
+    border-radius: var(--radius);
+    font-size: 12px;
+    color: var(--text-primary);
+    margin-top: 4px;
+}
+.ht-strip-banner-icon {
+    color: var(--accent);
+    font-size: 10px;
+}
+.ht-strip-banner-text {
+    flex: 1;
+    color: var(--text-secondary);
+}
+.ht-strip-banner-text strong {
+    color: var(--accent);
+    font-family: var(--font-mono);
+}
+.ht-strip-banner-close {
+    border: 1px solid var(--accent);
+    background: transparent;
+    color: var(--accent);
+    font-size: 11px;
+    font-weight: 600;
+    padding: 2px 10px;
+    border-radius: var(--radius);
+    cursor: pointer;
+    transition: background 0.15s ease;
+}
+.ht-strip-banner-close:hover {
+    background: var(--accent);
+    color: var(--bg-card);
+}
 .ht-strip-labels {
     display: grid;
     gap: 2px;
diff --git a/src/static/dashboard.html b/src/static/dashboard.html
index b00d2a7..13e7bad 100644
--- a/src/static/dashboard.html
+++ b/src/static/dashboard.html
@@ -13,7 +13,7 @@
     <link rel="stylesheet" href="/static/vendor/leaflet.css">
     <link rel="stylesheet" href="/static/vendor/MarkerCluster.css">
     <link rel="stylesheet" href="/static/vendor/MarkerCluster.Default.css">
-    <link rel="stylesheet" href="/static/css/style.css?v=20260501c">
+    <link rel="stylesheet" href="/static/css/style.css?v=20260501d">
 <style>
 /* Export Modal Radio */
 .export-radio { display:flex; align-items:center; gap:10px; padding:8px 12px; cursor:pointer; border-radius:var(--radius-sm); transition:background 0.15s; border:1px solid transparent; margin-bottom:4px; }
@@ -647,7 +647,7 @@
     <script src="/static/js/components.js?v=20260427a"></script>
     <script src="/static/js/layout.js?v=20260316b"></script>
     <script src="/static/js/pipeline.js?v=20260501a"></script>
-    <script src="/static/js/app.js?v=20260501c"></script>
+    <script src="/static/js/app.js?v=20260501d"></script>
     <script src="/static/js/cluster-data.js?v=20260322f"></script>
     <script src="/static/js/tutorial.js?v=20260316z"></script>
     <script src="/static/js/chat.js?v=20260422a"></script>
diff --git a/src/static/js/app.js b/src/static/js/app.js
index 01ad7d5..d59ee90 100644
--- a/src/static/js/app.js
+++ b/src/static/js/app.js
@@ -433,7 +433,7 @@ const App = {
     _editingSourceId: null,
     _timelineFilter: 'all',
     _timelineRange: 'all',
-    _activeTimelineDetail: null,
+    _activeStripWindow: null,
     _timelineSearchTimer: null,
     _pendingComplete: null,
     _pendingCompleteTimer: null,
@@ -1038,7 +1038,7 @@ const App = {
         }
         this._timelineFilter = 'all';
         this._timelineRange = 'all';
-        this._activeTimelineDetail = null;
+        this._activeStripWindow = null;
         const _tsEl = document.getElementById('timeline-search'); if (_tsEl) _tsEl.value = '';
         document.querySelectorAll('.ht-filter-btn').forEach(btn => {
             const isActive = btn.dataset.filter === 'all';
@@ -1115,8 +1115,7 @@ const App = {
     },
 
     /** Heatmap-Strip oben + vertikaler Newsfeed-Stream darunter.
-     *  Lageberichte sind als prominente Sektionen im Stream.
-     *  Klick auf Heatmap-Quadrat scrollt im Stream zur passenden Zeit-Gruppe.
+     *  Klick auf Heatmap-Balken: Stream filtert auf das Zeitfenster (aktive Balken hervorgehoben).
      */
     rerenderTimeline() {
         const container = document.getElementById('timeline');
@@ -1125,28 +1124,46 @@ const App = {
         const filterType = this._timelineFilter;
         const range = this._timelineRange;
 
-        const entries = this._collectEntries(filterType, searchTerm, range);
+        let entries = this._collectEntries(filterType, searchTerm, range);
         this._updateTimelineCount(entries);
 
-        if (entries.length === 0) {
-            container.innerHTML = (searchTerm || range !== 'all')
-                ? '<div class="ht-empty">Keine Einträge im gewählten Zeitraum.</div>'
-                : '<div class="ht-empty">Noch keine Meldungen. Starte eine Recherche mit "Aktualisieren".</div>';
-            return;
-        }
-
-        // Heatmap nutzt IMMER alle Eintraege (Filter-unabhaengig), damit der Strip
-        // die volle Aktivitaet zeigt und auch im "Lageberichte"-Filter scrollbar bleibt.
+        // Strip nutzt IMMER alle Eintraege im Range (unabhaengig von Filter/Search/Strip-Window)
         const stripEntries = this._collectEntries('all', '', range);
         stripEntries.sort((a, b) => new Date(a.timestamp || 0) - new Date(b.timestamp || 0));
 
+        // Wenn ein Heatmap-Balken aktiv ist: Stream zusaetzlich auf dieses Zeitfenster filtern
+        const win = this._activeStripWindow;
+        if (win && entries.length > 0) {
+            entries = entries.filter(e => {
+                const ts = new Date(e.timestamp || 0).getTime();
+                return ts >= win.start && ts < win.end;
+            });
+        }
+
         let html = '<div class="ht-tl">';
         if (stripEntries.length > 0) {
             html += this._renderTimelineStrip(stripEntries);
         }
-        // Vertikaler Newsfeed
+
+        // Banner mit aktivem Filter
+        if (win) {
+            html += `<div class="ht-strip-banner">
+                <span class="ht-strip-banner-icon" aria-hidden="true">▼</span>
+                <span class="ht-strip-banner-text">Gefiltert auf <strong>${UI.escape(win.label)}</strong> · ${entries.length} Eintr${entries.length === 1 ? 'ag' : 'äge'}</span>
+                <button class="ht-strip-banner-close" onclick="App.clearStripWindow()" aria-label="Filter aufheben">Filter aufheben</button>
+            </div>`;
+        }
+
         html += '<div class="ht-stream">';
-        html += this._renderVerticalStream(entries);
+        if (entries.length === 0) {
+            html += win
+                ? '<div class="ht-empty">Keine Einträge in diesem Zeitfenster.</div>'
+                : (searchTerm || range !== 'all')
+                    ? '<div class="ht-empty">Keine Einträge im gewählten Zeitraum.</div>'
+                    : '<div class="ht-empty">Noch keine Meldungen. Starte eine Recherche mit "Aktualisieren".</div>';
+        } else {
+            html += this._renderVerticalStream(entries);
+        }
         html += '</div>';
         html += '</div>';
         container.innerHTML = html;
@@ -1269,6 +1286,7 @@ const App = {
         if (buckets.length === 0) return '';
 
         const maxCount = Math.max(1, ...buckets.map(b => b.articles));
+        const win = this._activeStripWindow;
 
         let html = '<div class="ht-strip">';
         html += '<div class="ht-strip-cells">';
@@ -1277,6 +1295,7 @@ const App = {
             const cls = ['ht-strip-cell'];
             if (b.snapshots > 0) cls.push('has-snapshot');
             if (b.articles === 0 && b.snapshots === 0) cls.push('empty');
+            if (win && win.start === b.start && win.end === b.end) cls.push('active');
             const tip = `${b.label}: ${b.articles} Meldung${b.articles === 1 ? '' : 'en'}` +
                 (b.snapshots > 0 ? ` + ${b.snapshots} Lagebericht${b.snapshots === 1 ? '' : 'e'}` : '');
             html += `<div class="${cls.join(' ')}" style="--intensity:${intensity.toFixed(3)};" title="${UI.escape(tip)}" onclick="App.openTimelineWindow(${b.start}, ${b.end}, ${UI.escape(JSON.stringify(b.label))})"></div>`;
@@ -1316,6 +1335,7 @@ const App = {
 
     setTimelineFilter(filter) {
         this._timelineFilter = filter;
+        this._activeStripWindow = null;
         document.querySelectorAll('.ht-filter-btn').forEach(btn => {
             const isActive = btn.dataset.filter === filter;
             btn.classList.toggle('active', isActive);
@@ -1326,6 +1346,7 @@ const App = {
 
     setTimelineRange(range) {
         this._timelineRange = range;
+        this._activeStripWindow = null;
         document.querySelectorAll('.ht-range-btn').forEach(btn => {
             const isActive = btn.dataset.range === range;
             btn.classList.toggle('active', isActive);
@@ -1334,42 +1355,23 @@ const App = {
         this.rerenderTimeline();
     },
 
-    /** Klick auf Heatmap-Quadrat: Filter im Stream auf das Zeitfenster scrollen. */
+    /** Klick auf Heatmap-Balken: Stream auf dieses Zeitfenster filtern.
+     *  Zweiter Klick auf denselben Balken hebt den Filter auf.
+     */
     openTimelineWindow(startMs, endMs, label) {
-        // Im Stream die naechste vt-time-group finden, deren Eintraege ins Fenster fallen
-        const groups = document.querySelectorAll('#timeline .vt-time-group');
-        let target = null;
-        for (const g of groups) {
-            const firstTimeEl = g.querySelector('.vt-article-time, .vt-snapshot-time');
-            // Pragmatisch: nimm die erste Group, die Eintraege mit Timestamp >= startMs hat.
-            // Die Stream-Daten sind absteigend sortiert; wir finden die erste passende.
-            const matches = Array.from(g.querySelectorAll('.vt-entry')).some(entry => {
-                // Wir haben keine direkten Timestamps im DOM — nehmen den Group-Index
-                return true;
-            });
-            if (matches) {
-                // Statt komplizierter Ts-Suche: scrolle zur Gruppe, deren Label das Datum enthaelt
-                target = g;
-                break;
-            }
-        }
-        // Bessere Heuristik: die vt-time-group, deren erstes Datums-Element ins Fenster faellt
-        const dateAtStart = new Date(startMs);
-        const tzs = _tz(dateAtStart);
-        const wantKey = `${tzs.year}-${tzs.month}-${tzs.date}`;
-        const wantHour = tzs.hours;
-        for (const g of groups) {
-            const k = g.dataset.timeKey || '';
-            if (k.startsWith(wantKey) && (k === wantKey || k.endsWith('-' + wantHour))) {
-                target = g;
-                break;
-            }
-        }
-        if (target) {
-            target.scrollIntoView({ behavior: document.documentElement.dataset.a11yMotion ? 'instant' : 'smooth', block: 'start' });
-            target.classList.add('vt-time-group--flash');
-            setTimeout(() => target.classList.remove('vt-time-group--flash'), 1200);
+        const win = this._activeStripWindow;
+        if (win && win.start === startMs && win.end === endMs) {
+            this._activeStripWindow = null;
+        } else {
+            this._activeStripWindow = { start: startMs, end: endMs, label: label || '' };
         }
+        this.rerenderTimeline();
+    },
+
+    /** Strip-Filter aufheben (z.B. via Banner-Button). */
+    clearStripWindow() {
+        this._activeStripWindow = null;
+        this.rerenderTimeline();
     },
 
     _resizeTimelineTile() {