diff --git a/ccw/src/templates/dashboard-css/03-tasks.css b/ccw/src/templates/dashboard-css/03-tasks.css
index af4c9e72..62784335 100644
--- a/ccw/src/templates/dashboard-css/03-tasks.css
+++ b/ccw/src/templates/dashboard-css/03-tasks.css
@@ -302,9 +302,14 @@
 
 .collapsible-content {
   padding: 1rem;
+  display: block;
+}
+
+.collapsible-content.collapsed {
   display: none;
 }
 
+/* Legacy .open class support */
 .collapsible-content.open {
   display: block;
 }
diff --git a/ccw/src/templates/dashboard-css/04-lite-tasks.css b/ccw/src/templates/dashboard-css/04-lite-tasks.css
index 285d8742..3fd0dee8 100644
--- a/ccw/src/templates/dashboard-css/04-lite-tasks.css
+++ b/ccw/src/templates/dashboard-css/04-lite-tasks.css
@@ -406,6 +406,7 @@
 }
 
 .collapsible-content {
+  display: block;
   padding: 1rem;
   background: hsl(var(--muted));
 }
@@ -3440,6 +3441,309 @@
   transform: rotate(-90deg);
 }
 
+/* Discussion Round using collapsible-section pattern */
+.discussion-round.collapsible-section {
+  margin-bottom: 0.75rem;
+  border: 1px solid hsl(var(--border));
+  border-radius: 8px;
+  overflow: hidden;
+  background: hsl(var(--card));
+}
+
+.discussion-round.collapsible-section .collapsible-header {
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
+  padding: 0.75rem 1rem;
+  background: hsl(var(--muted) / 0.3);
+  cursor: pointer;
+  transition: background-color 0.2s;
+}
+
+.discussion-round.collapsible-section .collapsible-header:hover {
+  background: hsl(var(--muted) / 0.5);
+}
+
+.discussion-round.collapsible-section .collapsible-content {
+  padding: 1rem;
+  border-top: 1px solid hsl(var(--border) / 0.5);
+  background: hsl(var(--card));
+}
+
+.discussion-round.collapsible-section .collapsible-content.collapsed {
+  display: none;
+}
+
+/* ========== Summary Tab Content ========== */
+.summary-tab-content .summary-section {
+  margin-bottom: 1rem;
+  padding: 1rem;
+  border: 1px solid hsl(var(--border));
+  border-radius: 8px;
+  background: hsl(var(--card));
+}
+
+.summary-section-title {
+  font-size: 0.9rem;
+  font-weight: 600;
+  color: hsl(var(--foreground));
+  margin-bottom: 0.75rem;
+  display: flex;
+  align-items: center;
+  gap: 0.375rem;
+}
+
+.summary-content {
+  font-size: 0.875rem;
+  color: hsl(var(--muted-foreground));
+  line-height: 1.6;
+}
+
+.convergence-info {
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
+}
+
+.convergence-level {
+  font-size: 0.75rem;
+  padding: 0.25rem 0.5rem;
+  border-radius: 4px;
+  text-transform: capitalize;
+  background: hsl(var(--muted));
+}
+
+.convergence-level.full { background: hsl(var(--success) / 0.15); color: hsl(var(--success)); }
+.convergence-level.partial { background: hsl(var(--warning) / 0.15); color: hsl(var(--warning)); }
+.convergence-level.low { background: hsl(var(--error) / 0.15); color: hsl(var(--error)); }
+
+.convergence-rec {
+  font-size: 0.75rem;
+  padding: 0.25rem 0.5rem;
+  border-radius: 4px;
+  text-transform: capitalize;
+  background: hsl(var(--info) / 0.15);
+  color: hsl(var(--info));
+}
+
+.convergence-rec.converged { background: hsl(var(--success) / 0.15); color: hsl(var(--success)); }
+.convergence-rec.continue { background: hsl(var(--info) / 0.15); color: hsl(var(--info)); }
+
+/* Summary collapsible Solutions section */
+.summary-section.collapsible-section {
+  padding: 0;
+  overflow: hidden;
+}
+
+.summary-section.collapsible-section .collapsible-header {
+  padding: 0.75rem 1rem;
+  background: hsl(var(--card));
+  border-bottom: 1px solid transparent;
+}
+
+.summary-section.collapsible-section .collapsible-header:hover {
+  background: hsl(var(--muted) / 0.5);
+}
+
+.summary-section.collapsible-section .collapsible-content {
+  padding: 1rem;
+  background: hsl(var(--muted) / 0.3);
+  border-top: 1px solid hsl(var(--border) / 0.5);
+}
+
+.solution-summary-item {
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
+  padding: 0.5rem 0;
+  border-bottom: 1px solid hsl(var(--border) / 0.3);
+}
+
+.solution-summary-item:last-child {
+  border-bottom: none;
+}
+
+.solution-num {
+  font-size: 0.75rem;
+  font-weight: 600;
+  color: hsl(var(--primary));
+  min-width: 1.5rem;
+}
+
+.solution-name {
+  flex: 1;
+  font-size: 0.875rem;
+}
+
+.feasibility-badge {
+  font-size: 0.7rem;
+  padding: 0.125rem 0.375rem;
+  border-radius: 4px;
+  background: hsl(var(--success) / 0.15);
+  color: hsl(var(--success));
+}
+
+/* ========== Context Tab Content (Multi-CLI) ========== */
+.context-tab-content {
+  display: flex;
+  flex-direction: column;
+  gap: 1rem;
+  padding: 1rem;
+}
+
+.context-tab-content .context-section {
+  padding: 1rem;
+  border: 1px solid hsl(var(--border));
+  border-radius: 8px;
+  background: hsl(var(--card));
+}
+
+.context-tab-content .context-section-title {
+  font-size: 0.9rem;
+  font-weight: 600;
+  color: hsl(var(--foreground));
+  margin-bottom: 0.75rem;
+  display: flex;
+  align-items: center;
+  gap: 0.375rem;
+}
+
+.context-tab-content .context-description {
+  font-size: 0.875rem;
+  color: hsl(var(--muted-foreground));
+  line-height: 1.6;
+  margin: 0;
+}
+
+.context-tab-content .constraints-list {
+  margin: 0;
+  padding-left: 1.25rem;
+  font-size: 0.875rem;
+  color: hsl(var(--muted-foreground));
+}
+
+.context-tab-content .constraints-list li {
+  margin-bottom: 0.375rem;
+}
+
+.context-tab-content .path-tags {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.5rem;
+}
+
+.context-tab-content .path-tag {
+  font-family: monospace;
+  font-size: 0.75rem;
+  padding: 0.25rem 0.5rem;
+  background: hsl(var(--muted));
+  border-radius: 4px;
+  color: hsl(var(--foreground));
+}
+
+.context-tab-content .session-id-code {
+  font-family: monospace;
+  font-size: 0.8rem;
+  padding: 0.5rem 0.75rem;
+  background: hsl(var(--muted));
+  border-radius: 4px;
+  display: inline-block;
+}
+
+/* Context tab collapsible sections */
+.context-tab-content .context-section.collapsible-section {
+  padding: 0;
+  overflow: hidden;
+}
+
+.context-tab-content .context-section.collapsible-section .collapsible-header {
+  padding: 0.75rem 1rem;
+  background: hsl(var(--card));
+}
+
+.context-tab-content .context-section.collapsible-section .collapsible-header:hover {
+  background: hsl(var(--muted) / 0.5);
+}
+
+.context-tab-content .context-section.collapsible-section .collapsible-content {
+  padding: 1rem;
+  background: hsl(var(--muted) / 0.3);
+  border-top: 1px solid hsl(var(--border) / 0.5);
+}
+
+.context-tab-content .files-list {
+  margin: 0;
+  padding: 0;
+  list-style: none;
+}
+
+.context-tab-content .file-item {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  padding: 0.375rem 0;
+  border-bottom: 1px solid hsl(var(--border) / 0.3);
+  font-size: 0.8rem;
+}
+
+.context-tab-content .file-item:last-child {
+  border-bottom: none;
+}
+
+.context-tab-content .file-icon {
+  flex-shrink: 0;
+}
+
+.context-tab-content .file-item code {
+  font-family: monospace;
+  font-size: 0.75rem;
+  background: hsl(var(--muted));
+  padding: 0.125rem 0.375rem;
+  border-radius: 3px;
+}
+
+.context-tab-content .file-reason {
+  color: hsl(var(--muted-foreground));
+  font-size: 0.75rem;
+  margin-left: auto;
+}
+
+.context-tab-content .deps-list {
+  margin: 0;
+  padding-left: 1.25rem;
+  font-size: 0.8rem;
+  color: hsl(var(--foreground));
+}
+
+.context-tab-content .deps-list li {
+  margin-bottom: 0.25rem;
+}
+
+.context-tab-content .risks-list {
+  margin: 0;
+  padding-left: 1.25rem;
+}
+
+.context-tab-content .risk-item {
+  font-size: 0.875rem;
+  color: hsl(var(--warning));
+  margin-bottom: 0.375rem;
+}
+
+.context-tab-content .json-content {
+  font-family: monospace;
+  font-size: 0.75rem;
+  line-height: 1.5;
+  margin: 0;
+  white-space: pre-wrap;
+  word-break: break-all;
+  max-height: 400px;
+  overflow-y: auto;
+  background: hsl(var(--background));
+  padding: 0.75rem;
+  border-radius: 4px;
+}
+
 /* ========== Association Section Styles ========== */
 .association-section {
   margin-bottom: 1.5rem;