diff --git a/apps/web/messages/en.json b/apps/web/messages/en.json
index 88a528fd..83ceccd0 100644
--- a/apps/web/messages/en.json
+++ b/apps/web/messages/en.json
@@ -5521,6 +5521,30 @@
         }
       }
     },
+    "firstScreenDepthMap": {
+      "eyebrow": "首屏深度地圖",
+      "title": "哪些內容直接可見，哪些需要下鑽",
+      "subtitle": "把 IwoooS 分成首屏可見、進階圖表、深層台帳與執行期邊界四層；預設呈現態勢，需要查證時再展開細節。",
+      "boundaryTitle": "深度地圖邊界",
+      "layers": {
+        "visible": {
+          "title": "首屏直接可見",
+          "body": "高層快照、焦點導覽、資安網模型與拓樸圖譜固定顯示。"
+        },
+        "advanced": {
+          "title": "進階圖表收合",
+          "body": "決策跑道、執行閘雷達、命令地圖與解鎖路徑需要時再展開。"
+        },
+        "ledger": {
+          "title": "證據台帳下鑽",
+          "body": "產品範圍、主機工具鏈、VibeWork 與交付明細集中在進階證據區。"
+        },
+        "runtime": {
+          "title": "執行期仍鎖定",
+          "body": "掃描、SSH、主機更新、修復、部署與版本來源變更都不是前端操作。"
+        }
+      }
+    },
     "immediateVisualMesh": {
       "eyebrow": "首屏資安網視覺模型",
       "title": "資安關聯視覺模型",
diff --git a/apps/web/messages/zh-TW.json b/apps/web/messages/zh-TW.json
index 88a528fd..83ceccd0 100644
--- a/apps/web/messages/zh-TW.json
+++ b/apps/web/messages/zh-TW.json
@@ -5521,6 +5521,30 @@
         }
       }
     },
+    "firstScreenDepthMap": {
+      "eyebrow": "首屏深度地圖",
+      "title": "哪些內容直接可見，哪些需要下鑽",
+      "subtitle": "把 IwoooS 分成首屏可見、進階圖表、深層台帳與執行期邊界四層；預設呈現態勢，需要查證時再展開細節。",
+      "boundaryTitle": "深度地圖邊界",
+      "layers": {
+        "visible": {
+          "title": "首屏直接可見",
+          "body": "高層快照、焦點導覽、資安網模型與拓樸圖譜固定顯示。"
+        },
+        "advanced": {
+          "title": "進階圖表收合",
+          "body": "決策跑道、執行閘雷達、命令地圖與解鎖路徑需要時再展開。"
+        },
+        "ledger": {
+          "title": "證據台帳下鑽",
+          "body": "產品範圍、主機工具鏈、VibeWork 與交付明細集中在進階證據區。"
+        },
+        "runtime": {
+          "title": "執行期仍鎖定",
+          "body": "掃描、SSH、主機更新、修復、部署與版本來源變更都不是前端操作。"
+        }
+      }
+    },
     "immediateVisualMesh": {
       "eyebrow": "首屏資安網視覺模型",
       "title": "資安關聯視覺模型",
diff --git a/apps/web/src/app/[locale]/iwooos/page.tsx b/apps/web/src/app/[locale]/iwooos/page.tsx
index e9b48f5d..82ff5b34 100644
--- a/apps/web/src/app/[locale]/iwooos/page.tsx
+++ b/apps/web/src/app/[locale]/iwooos/page.tsx
@@ -40,6 +40,14 @@ type PostureMetric = {
   tone: 'steady' | 'warn' | 'locked'
 }
 
+type FirstScreenDepthLayer = {
+  key: string
+  value: string
+  icon: typeof ShieldCheck
+  tone: 'steady' | 'warn' | 'locked'
+  href?: string
+}
+
 type FastProgressItem = {
   key: string
   value: string
@@ -880,6 +888,26 @@ const postureMetrics: PostureMetric[] = [
   { key: 'activeGates', value: '0', tone: 'locked' },
 ]
 
+const firstScreenDepthLayers: FirstScreenDepthLayer[] = [
+  { key: 'visible', value: '4', icon: ShieldCheck, tone: 'steady' },
+  { key: 'advanced', value: '2', icon: SearchCheck, tone: 'warn', href: '#iwooos-decision-gate-visuals' },
+  { key: 'ledger', value: '4', icon: ListChecks, tone: 'warn', href: '#iwooos-scope-evidence-visuals' },
+  { key: 'runtime', value: '0', icon: Lock, tone: 'locked' },
+]
+
+const firstScreenDepthBoundaries = [
+  'iwooos_first_screen_depth_map_visible_layer_count=4',
+  'iwooos_first_screen_depth_map_advanced_group_count=2',
+  'iwooos_first_screen_depth_map_ledger_group_count=4',
+  'iwooos_first_screen_depth_map_runtime_gate_count=0',
+  'iwooos_first_screen_depth_map_advanced_default_visible=false',
+  'iwooos_first_screen_depth_map_scope_evidence_default_visible=false',
+  'runtime_execution_authorized=false',
+  'active_runtime_gate_count=0',
+  'action_buttons_allowed=false',
+  'not_authorization=true',
+]
+
 const fastProgressItems: FastProgressItem[] = [
   { key: 'done', value: '7 頁', icon: CheckCircle2, tone: 'steady' },
   { key: 'kali112', value: '只讀通過', icon: ShieldCheck, tone: 'warn' },
@@ -9912,6 +9940,159 @@ function IwoooSFocusDeckBoard() {
   )
 }
 
+function IwoooSFirstScreenDepthMapBoard() {
+  const t = useTranslations('iwooos.firstScreenDepthMap')
+  const textWrap = { overflowWrap: 'anywhere' as const, wordBreak: 'break-word' as const }
+
+  return (
+    <section
+      data-testid="iwooos-first-screen-depth-map-board"
+      style={{ marginBottom: 14, maxWidth: '100%', overflow: 'hidden' }}
+    >
+      <div style={{ ...band, padding: 14, background: '#fbfbf7', borderColor: '#ded8c8' }}>
+        <div
+          style={{
+            display: 'grid',
+            gridTemplateColumns: 'repeat(auto-fit, minmax(min(100%, 250px), 1fr))',
+            gap: 10,
+            alignItems: 'stretch',
+          }}
+        >
+          <div
+            style={{
+              border: '0.5px solid #d9d2c4',
+              borderRadius: 8,
+              background: '#fff',
+              padding: 13,
+              display: 'grid',
+              alignContent: 'start',
+              gap: 7,
+              minWidth: 0,
+            }}
+          >
+            <div style={{ display: 'flex', alignItems: 'center', gap: 8, color: '#5c543f', fontSize: 12, fontWeight: 700 }}>
+              <Route size={16} color="#b66a2d" />
+              {t('eyebrow')}
+            </div>
+            <h2 style={{ fontSize: 17, lineHeight: 1.25, margin: 0, color: '#141413' }}>{t('title')}</h2>
+            <p style={{ fontSize: 12, lineHeight: 1.55, color: '#6f6d66', margin: 0, ...textWrap }}>
+              {t('subtitle')}
+            </p>
+          </div>
+
+          <div
+            data-testid="iwooos-first-screen-depth-map-layers"
+            style={{
+              display: 'grid',
+              gridTemplateColumns: 'repeat(auto-fit, minmax(min(100%, 150px), 1fr))',
+              gap: 8,
+              minWidth: 0,
+            }}
+          >
+            {firstScreenDepthLayers.map((item, index) => {
+              const Icon = item.icon
+              const content = (
+                <>
+                  <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', gap: 8 }}>
+                    <Icon size={16} color={toneColors[item.tone]} />
+                    <span style={{ color: toneColors[item.tone], fontSize: 17, fontWeight: 700 }}>{item.value}</span>
+                  </div>
+                  <div style={{ marginTop: 8, fontSize: 10.5, color: '#8a867c', fontWeight: 700 }}>
+                    {String(index + 1).padStart(2, '0')}
+                  </div>
+                  <h3 style={{ margin: '4px 0 0', fontSize: 13, lineHeight: 1.25, color: '#141413', ...textWrap }}>
+                    {t(`layers.${item.key}.title` as never)}
+                  </h3>
+                  <p style={{ margin: '6px 0 0', fontSize: 11, lineHeight: 1.45, color: '#6f6d66', ...textWrap }}>
+                    {t(`layers.${item.key}.body` as never)}
+                  </p>
+                </>
+              )
+              const style = {
+                border: `0.5px solid ${item.tone === 'steady' ? '#cfe2d8' : item.tone === 'warn' ? '#e6c8b8' : '#dad7ce'}`,
+                borderRadius: 8,
+                background: '#fff',
+                padding: 11,
+                minHeight: 126,
+                minWidth: 0,
+                color: '#141413',
+                textDecoration: 'none',
+                display: 'block',
+              }
+
+              return item.href ? (
+                <a key={item.key} href={item.href} data-testid={`iwooos-first-screen-depth-map-layer-${item.key}`} style={style}>
+                  {content}
+                </a>
+              ) : (
+                <div key={item.key} data-testid={`iwooos-first-screen-depth-map-layer-${item.key}`} style={style}>
+                  {content}
+                </div>
+              )
+            })}
+          </div>
+        </div>
+
+        <div
+          data-testid="iwooos-first-screen-depth-map-flow"
+          style={{
+            marginTop: 10,
+            display: 'grid',
+            gridTemplateColumns: 'repeat(4, minmax(0, 1fr))',
+            gap: 6,
+          }}
+        >
+          {firstScreenDepthLayers.map(item => (
+            <div
+              key={item.key}
+              style={{
+                height: 7,
+                borderRadius: 8,
+                background: toneColors[item.tone],
+                opacity: item.key === 'runtime' ? 0.38 : 0.86,
+              }}
+            />
+          ))}
+        </div>
+
+        <details
+          data-testid="iwooos-first-screen-depth-map-boundaries"
+          style={{
+            marginTop: 10,
+            border: '0.5px solid #e7e1d3',
+            borderRadius: 8,
+            background: '#fff',
+            padding: '7px 10px',
+          }}
+        >
+          <summary style={{ cursor: 'pointer', fontSize: 12, fontWeight: 700, color: '#5c543f' }}>
+            {t('boundaryTitle')}
+          </summary>
+          <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(230px, 1fr))', gap: 6, marginTop: 9 }}>
+            {firstScreenDepthBoundaries.map(item => (
+              <code
+                key={item}
+                style={{
+                  border: '0.5px solid #ede4d4',
+                  borderRadius: 8,
+                  padding: '6px 8px',
+                  color: '#5c543f',
+                  fontSize: 11,
+                  lineHeight: 1.4,
+                  background: '#fbfbf7',
+                  overflowWrap: 'anywhere',
+                }}
+              >
+                {item}
+              </code>
+            ))}
+          </div>
+        </details>
+      </div>
+    </section>
+  )
+}
+
 function IwoooSImmediateVisualMeshBoard() {
   const t = useTranslations('iwooos.immediateVisualMesh')
   const textWrap = { overflowWrap: 'anywhere' as const, wordBreak: 'break-word' as const }
@@ -16388,6 +16569,7 @@ export default function IwoooSPage({ params }: { params: { locale: string } }) {
 
         <IwoooSExecutiveSnapshotBoard />
         <IwoooSFocusDeckBoard />
+        <IwoooSFirstScreenDepthMapBoard />
         <IwoooSImmediateVisualMeshBoard />
         <IwoooSTopologyAtlasBoard />
 
diff --git a/docs/LOGBOOK.md b/docs/LOGBOOK.md
index ca454205..f0a59f9a 100644
--- a/docs/LOGBOOK.md
+++ b/docs/LOGBOOK.md
@@ -1,3 +1,22 @@
+## 2026-06-01｜IwoooS 首屏深度地圖與證據語義校正
+
+**背景**：
+
+- 前一階段已把 IwoooS 長內容收進可展開區，但 snapshot 仍有部分歷史欄位以 `first_layer=true` 描述已收合的面板，容易讓人誤解「首屏固定可見」與「首層可下鑽」的差異。
+- 使用者要求前端呈現要更專業，不只堆文字；本輪把資訊架構邊界直接做成可視化深度地圖。
+
+**本次調整**：
+
+- `apps/web/src/app/[locale]/iwooos/page.tsx`：新增 `IwoooSFirstScreenDepthMapBoard`，用四層視覺卡呈現「首屏直接可見」、「進階圖表收合」、「證據台帳下鑽」、「執行期仍鎖定」。
+- `apps/web/messages/zh-TW.json` / `en.json`：新增首屏深度地圖繁中文案；英文語系維持繁中鏡像。
+- `docs/security/iwooos-posture-projection.snapshot.json`：新增 `first_screen_depth_map_layers`，並補上多個 `default_visible=false` 欄位，讓收合區不再被誤讀為預設展開。
+- `scripts/security/security-mirror-progress-guard.py`：新增 S2.156 guard，鎖住深度地圖、四層語義、收合區 default visible 狀態與 runtime gate 0 邊界。
+- `docs/security/security-mirror-status-rollup.snapshot.json`：新增 `s2_156_iwooos_first_screen_depth_map` 進度台帳。
+
+**進度邊界**：
+
+- 整體維持 `61%`；這是 UI/UX 與證據語義校正，不是 Kali SSH、掃描、主機更新、修復、部署或 GitHub primary 切換。
+
 ## 2026-06-01｜truth-chain quality summary 納入 AI 自健診 SLO
 
 **背景**：
diff --git a/docs/security/iwooos-posture-projection.snapshot.json b/docs/security/iwooos-posture-projection.snapshot.json
index 649223ce..fcbf7ede 100644
--- a/docs/security/iwooos-posture-projection.snapshot.json
+++ b/docs/security/iwooos-posture-projection.snapshot.json
@@ -36,17 +36,28 @@
     "approval_queue_total": 8,
     "pending_approval_count": 7,
     "block_candidate_count": 1,
+    "first_screen_depth_map_first_layer": true,
+    "first_screen_depth_map_layer_count": 4,
+    "first_screen_depth_map_visible_layer_count": 4,
+    "first_screen_depth_map_advanced_group_count": 2,
+    "first_screen_depth_map_ledger_group_count": 4,
+    "first_screen_depth_map_runtime_gate_count": 0,
+    "first_screen_depth_map_advanced_default_visible": false,
+    "first_screen_depth_map_scope_evidence_default_visible": false,
     "visual_command_dashboard_widget_count": 14,
     "visual_command_dashboard_first_layer": true,
+    "visual_command_dashboard_default_visible": false,
     "professional_security_experience_first_layer": true,
+    "professional_security_experience_default_visible": false,
     "professional_security_experience_tab_count": 3,
     "professional_security_experience_attack_path_node_count": 6,
     "professional_security_experience_asset_heat_cell_count": 9,
     "professional_security_experience_response_flow_step_count": 5,
     "concrete_work_snapshot_first_layer": true,
+    "concrete_work_snapshot_default_visible": false,
     "concrete_work_snapshot_workstream_count": 6,
     "first_progress_unlock_path_first_layer": true,
-    "first_progress_unlock_path_default_visible": true,
+    "first_progress_unlock_path_default_visible": false,
     "first_progress_unlock_path_above_visual_dashboard": true,
     "first_progress_unlock_path_step_count": 5,
     "first_progress_unlock_path_boundary_details_collapsed": true,
@@ -54,6 +65,7 @@
     "first_progress_unlock_path_owner_response_accepted_count": 0,
     "first_progress_unlock_path_runtime_gate_count": 0,
     "command_map_first_layer": true,
+    "command_map_default_visible": false,
     "command_map_mode_count": 6,
     "command_map_default_mode": "unlock",
     "command_map_above_first_progress_unlock_path": true,
@@ -72,6 +84,7 @@
     "immediate_visual_mesh_above_command_map": true,
     "immediate_visual_mesh_runtime_gate_count": 0,
     "gate_radar_first_layer": true,
+    "gate_radar_default_visible": false,
     "gate_radar_lane_count": 4,
     "gate_radar_default_lane": "visible",
     "gate_radar_above_command_map": true,
@@ -97,14 +110,17 @@
     "all_product_coverage_snapshot_default_summary_mode": "compact_first",
     "all_product_coverage_snapshot_detail_ledger_collapsed": true,
     "global_security_mesh_matrix_first_layer": true,
+    "global_security_mesh_matrix_default_visible": false,
     "global_security_mesh_matrix_asset_count": 8,
     "global_security_mesh_matrix_read_only_count": 8,
     "global_security_mesh_matrix_runtime_gate_count": 0,
     "host_tool_evidence_chain_first_layer": true,
+    "host_tool_evidence_chain_default_visible": false,
     "host_tool_evidence_chain_host_count": 3,
     "host_tool_evidence_chain_tool_lane_count": 6,
     "host_tool_evidence_chain_step_count": 5,
     "vibework_security_onboarding_first_layer": true,
+    "vibework_security_onboarding_default_visible": false,
     "vibework_security_onboarding_item_count": 6,
     "vibework_security_onboarding_runtime_gate_count": 0,
     "existing_frontend_surface_count": 10,
@@ -175,6 +191,7 @@
     "topology_path_explorer_runtime_gate_count": 0,
     "topology_intelligence_runtime_gate_count": 0,
     "decision_runway_first_layer": true,
+    "decision_runway_default_visible": false,
     "decision_runway_step_count": 5,
     "decision_runway_default_step": "ownerEvidence",
     "decision_runway_dependency_count": 6,
@@ -278,6 +295,57 @@
       "not_authorization": true
     }
   ],
+  "first_screen_depth_map_layers": [
+    {
+      "layer_id": "visible",
+      "display_order": 1,
+      "display_mode": "first_screen_depth_map",
+      "surface_count": 4,
+      "default_visible": true,
+      "runtime_gate_count": 0,
+      "runtime_execution_authorized": false,
+      "action_buttons_allowed": false,
+      "not_authorization": true
+    },
+    {
+      "layer_id": "advanced",
+      "display_order": 2,
+      "display_mode": "first_screen_depth_map",
+      "surface_count": 2,
+      "target_anchor": "#iwooos-decision-gate-visuals",
+      "default_visible": false,
+      "runtime_gate_count": 0,
+      "runtime_execution_authorized": false,
+      "action_buttons_allowed": false,
+      "not_authorization": true
+    },
+    {
+      "layer_id": "ledger",
+      "display_order": 3,
+      "display_mode": "first_screen_depth_map",
+      "surface_count": 4,
+      "target_anchor": "#iwooos-scope-evidence-visuals",
+      "default_visible": false,
+      "runtime_gate_count": 0,
+      "runtime_execution_authorized": false,
+      "action_buttons_allowed": false,
+      "not_authorization": true
+    },
+    {
+      "layer_id": "runtime",
+      "display_order": 4,
+      "display_mode": "first_screen_depth_map",
+      "surface_count": 0,
+      "default_visible": false,
+      "runtime_gate_count": 0,
+      "runtime_execution_authorized": false,
+      "scan_authorized": false,
+      "host_change_authorized": false,
+      "source_control_mutation_authorized": false,
+      "action_buttons_allowed": false,
+      "not_authorization": true
+    }
+  ],
   "first_progress_unlock_path_steps": [
     {
       "step_id": "owner_response_scope",
@@ -442,7 +510,7 @@
     {
       "item_id": "workMap",
       "display_order": 1,
-      "target_anchor": "#iwooos-command-map-board",
+      "target_anchor": "#iwooos-decision-gate-visuals",
       "display_mode": "first_layer_focus_deck",
       "anchor_navigation_allowed": true,
       "execution_action_button_allowed": false,
@@ -453,7 +521,7 @@
     {
       "item_id": "unlockPath",
       "display_order": 2,
-      "target_anchor": "#iwooos-first-progress-unlock-path-board",
+      "target_anchor": "#iwooos-decision-gate-visuals",
       "display_mode": "first_layer_focus_deck",
       "anchor_navigation_allowed": true,
       "execution_action_button_allowed": false,
@@ -464,7 +532,7 @@
     {
       "item_id": "productScope",
       "display_order": 3,
-      "target_anchor": "#iwooos-global-security-mesh-matrix-board",
+      "target_anchor": "#iwooos-scope-evidence-visuals",
       "display_mode": "first_layer_focus_deck",
       "anchor_navigation_allowed": true,
       "execution_action_button_allowed": false,
@@ -475,7 +543,7 @@
     {
       "item_id": "hostTools",
       "display_order": 4,
-      "target_anchor": "#iwooos-host-tool-evidence-chain-board",
+      "target_anchor": "#iwooos-scope-evidence-visuals",
       "display_mode": "first_layer_focus_deck",
       "anchor_navigation_allowed": true,
       "execution_action_button_allowed": false,
@@ -486,7 +554,7 @@
     {
       "item_id": "sourceControl",
       "display_order": 5,
-      "target_anchor": "#iwooos-command-map-source-control",
+      "target_anchor": "#iwooos-decision-gate-visuals",
       "display_mode": "first_layer_focus_deck",
       "anchor_navigation_allowed": true,
       "execution_action_button_allowed": false,
diff --git a/docs/security/security-mirror-status-rollup.snapshot.json b/docs/security/security-mirror-status-rollup.snapshot.json
index f5c45ec1..ae3a58c6 100644
--- a/docs/security/security-mirror-status-rollup.snapshot.json
+++ b/docs/security/security-mirror-status-rollup.snapshot.json
@@ -2341,6 +2341,18 @@
       "runtime_delta": false,
       "execution_authorized": false,
       "not_authorization": true
+    },
+    {
+      "delta_id": "s2_156_iwooos_first_screen_depth_map",
+      "display_order": 185,
+      "completed_stage": "S2.156 IwoooS 首屏深度地圖與證據語義校正",
+      "progress_axis": "framework_detail",
+      "headline_percent_delta": 0,
+      "framework_delta_visible": true,
+      "why_headline_unchanged": "IwoooS 只新增首屏深度地圖，把首屏可見、進階圖表、證據台帳與執行期邊界拆成四層，並補上 default_visible=false 的證據語義，避免把已收合的決策跑道、命令地圖、主機工具鏈或 VibeWork 區塊誤讀成預設展開；iwooos_first_screen_depth_map_layer_count=4、iwooos_first_screen_depth_map_visible_layer_count=4、iwooos_first_screen_depth_map_advanced_group_count=2、iwooos_first_screen_depth_map_ledger_group_count=4、iwooos_first_screen_depth_map_runtime_gate_count=0、runtime_execution_authorized=false、active_runtime_gate_count=0、action_buttons_allowed=false，不把深度地圖當掃描、修復、部署、主機更新、版本來源切換、GitHub primary 切換或 Gitea 停用。",
+      "runtime_delta": false,
+      "execution_authorized": false,
+      "not_authorization": true
     }
   ],
   "next_safe_actions": [
diff --git a/scripts/security/security-mirror-progress-guard.py b/scripts/security/security-mirror-progress-guard.py
index c1f307ca..58f5c77e 100755
--- a/scripts/security/security-mirror-progress-guard.py
+++ b/scripts/security/security-mirror-progress-guard.py
@@ -744,6 +744,7 @@ def validate(root: Path) -> None:
         "s2_153_iwooos_executive_snapshot",
         "s2_154_iwooos_first_screen_language_polish",
         "s2_155_iwooos_first_layer_progressive_disclosure",
+        "s2_156_iwooos_first_screen_depth_map",
     ]
     assert_equal(
         "progress_delta_ledger.delta_ids",
@@ -1613,6 +1614,43 @@ def validate(root: Path) -> None:
         iwooos_projection["summary"]["all_product_coverage_snapshot_runtime_ready_count"],
         0,
     )
+    assert_true(
+        "iwooos_projection.summary.first_screen_depth_map_first_layer",
+        iwooos_projection["summary"]["first_screen_depth_map_first_layer"],
+    )
+    assert_equal(
+        "iwooos_projection.summary.first_screen_depth_map_layer_count",
+        iwooos_projection["summary"]["first_screen_depth_map_layer_count"],
+        4,
+    )
+    assert_equal(
+        "iwooos_projection.summary.first_screen_depth_map_visible_layer_count",
+        iwooos_projection["summary"]["first_screen_depth_map_visible_layer_count"],
+        4,
+    )
+    assert_equal(
+        "iwooos_projection.summary.first_screen_depth_map_advanced_group_count",
+        iwooos_projection["summary"]["first_screen_depth_map_advanced_group_count"],
+        2,
+    )
+    assert_equal(
+        "iwooos_projection.summary.first_screen_depth_map_ledger_group_count",
+        iwooos_projection["summary"]["first_screen_depth_map_ledger_group_count"],
+        4,
+    )
+    assert_equal(
+        "iwooos_projection.summary.first_screen_depth_map_runtime_gate_count",
+        iwooos_projection["summary"]["first_screen_depth_map_runtime_gate_count"],
+        0,
+    )
+    assert_false(
+        "iwooos_projection.summary.first_screen_depth_map_advanced_default_visible",
+        iwooos_projection["summary"]["first_screen_depth_map_advanced_default_visible"],
+    )
+    assert_false(
+        "iwooos_projection.summary.first_screen_depth_map_scope_evidence_default_visible",
+        iwooos_projection["summary"]["first_screen_depth_map_scope_evidence_default_visible"],
+    )
     assert_equal(
         "iwooos_projection.summary.all_product_coverage_snapshot_default_summary_mode",
         iwooos_projection["summary"]["all_product_coverage_snapshot_default_summary_mode"],
@@ -1622,7 +1660,7 @@ def validate(root: Path) -> None:
         "iwooos_projection.summary.first_progress_unlock_path_first_layer",
         iwooos_projection["summary"]["first_progress_unlock_path_first_layer"],
     )
-    assert_true(
+    assert_false(
         "iwooos_projection.summary.first_progress_unlock_path_default_visible",
         iwooos_projection["summary"]["first_progress_unlock_path_default_visible"],
     )
@@ -1658,6 +1696,10 @@ def validate(root: Path) -> None:
         "iwooos_projection.summary.command_map_first_layer",
         iwooos_projection["summary"]["command_map_first_layer"],
     )
+    assert_false(
+        "iwooos_projection.summary.command_map_default_visible",
+        iwooos_projection["summary"]["command_map_default_visible"],
+    )
     assert_equal(
         "iwooos_projection.summary.command_map_mode_count",
         iwooos_projection["summary"]["command_map_mode_count"],
@@ -1832,6 +1874,10 @@ def validate(root: Path) -> None:
         "iwooos_projection.summary.decision_runway_first_layer",
         iwooos_projection["summary"]["decision_runway_first_layer"],
     )
+    assert_false(
+        "iwooos_projection.summary.decision_runway_default_visible",
+        iwooos_projection["summary"]["decision_runway_default_visible"],
+    )
     assert_equal(
         "iwooos_projection.summary.decision_runway_step_count",
         iwooos_projection["summary"]["decision_runway_step_count"],
@@ -1879,6 +1925,10 @@ def validate(root: Path) -> None:
         "iwooos_projection.summary.gate_radar_first_layer",
         iwooos_projection["summary"]["gate_radar_first_layer"],
     )
+    assert_false(
+        "iwooos_projection.summary.gate_radar_default_visible",
+        iwooos_projection["summary"]["gate_radar_default_visible"],
+    )
     assert_equal(
         "iwooos_projection.summary.gate_radar_lane_count",
         iwooos_projection["summary"]["gate_radar_lane_count"],
@@ -1910,6 +1960,10 @@ def validate(root: Path) -> None:
         "iwooos_projection.summary.global_security_mesh_matrix_first_layer",
         iwooos_projection["summary"]["global_security_mesh_matrix_first_layer"],
     )
+    assert_false(
+        "iwooos_projection.summary.global_security_mesh_matrix_default_visible",
+        iwooos_projection["summary"]["global_security_mesh_matrix_default_visible"],
+    )
     assert_equal(
         "iwooos_projection.summary.global_security_mesh_matrix_asset_count",
         iwooos_projection["summary"]["global_security_mesh_matrix_asset_count"],
@@ -1929,6 +1983,10 @@ def validate(root: Path) -> None:
         "iwooos_projection.summary.host_tool_evidence_chain_first_layer",
         iwooos_projection["summary"]["host_tool_evidence_chain_first_layer"],
     )
+    assert_false(
+        "iwooos_projection.summary.host_tool_evidence_chain_default_visible",
+        iwooos_projection["summary"]["host_tool_evidence_chain_default_visible"],
+    )
     assert_equal(
         "iwooos_projection.summary.host_tool_evidence_chain_host_count",
         iwooos_projection["summary"]["host_tool_evidence_chain_host_count"],
@@ -1948,6 +2006,10 @@ def validate(root: Path) -> None:
         "iwooos_projection.summary.vibework_security_onboarding_first_layer",
         iwooos_projection["summary"]["vibework_security_onboarding_first_layer"],
     )
+    assert_false(
+        "iwooos_projection.summary.vibework_security_onboarding_default_visible",
+        iwooos_projection["summary"]["vibework_security_onboarding_default_visible"],
+    )
     assert_equal(
         "iwooos_projection.summary.vibework_security_onboarding_item_count",
         iwooos_projection["summary"]["vibework_security_onboarding_item_count"],
@@ -2326,10 +2388,18 @@ def validate(root: Path) -> None:
         "iwooos_projection.summary.visual_command_dashboard_first_layer",
         iwooos_projection["summary"]["visual_command_dashboard_first_layer"],
     )
+    assert_false(
+        "iwooos_projection.summary.visual_command_dashboard_default_visible",
+        iwooos_projection["summary"]["visual_command_dashboard_default_visible"],
+    )
     assert_true(
         "iwooos_projection.summary.professional_security_experience_first_layer",
         iwooos_projection["summary"]["professional_security_experience_first_layer"],
     )
+    assert_false(
+        "iwooos_projection.summary.professional_security_experience_default_visible",
+        iwooos_projection["summary"]["professional_security_experience_default_visible"],
+    )
     assert_equal(
         "iwooos_projection.summary.professional_security_experience_tab_count",
         iwooos_projection["summary"]["professional_security_experience_tab_count"],
@@ -2354,6 +2424,10 @@ def validate(root: Path) -> None:
         "iwooos_projection.summary.concrete_work_snapshot_first_layer",
         iwooos_projection["summary"]["concrete_work_snapshot_first_layer"],
     )
+    assert_false(
+        "iwooos_projection.summary.concrete_work_snapshot_default_visible",
+        iwooos_projection["summary"]["concrete_work_snapshot_default_visible"],
+    )
     assert_equal(
         "iwooos_projection.summary.concrete_work_snapshot_workstream_count",
         iwooos_projection["summary"]["concrete_work_snapshot_workstream_count"],
@@ -12329,6 +12403,110 @@ def validate(root: Path) -> None:
             iwooos_projection_page,
             text,
         )
+    expected_first_screen_depth_map_layer_ids = [
+        "visible",
+        "advanced",
+        "ledger",
+        "runtime",
+    ]
+    first_screen_depth_map_layers = iwooos_projection["first_screen_depth_map_layers"]
+    assert_equal(
+        "iwooos_projection.first_screen_depth_map_layers.ids",
+        [item["layer_id"] for item in first_screen_depth_map_layers],
+        expected_first_screen_depth_map_layer_ids,
+    )
+    assert_equal(
+        "iwooos_projection.first_screen_depth_map_layers.display_order",
+        [item["display_order"] for item in first_screen_depth_map_layers],
+        list(range(1, len(expected_first_screen_depth_map_layer_ids) + 1)),
+    )
+    first_screen_depth_surface_counts = {
+        item["layer_id"]: item["surface_count"] for item in first_screen_depth_map_layers
+    }
+    assert_equal("iwooos_projection.first_screen_depth_map_layers.visible.surface_count", first_screen_depth_surface_counts["visible"], 4)
+    assert_equal("iwooos_projection.first_screen_depth_map_layers.advanced.surface_count", first_screen_depth_surface_counts["advanced"], 2)
+    assert_equal("iwooos_projection.first_screen_depth_map_layers.ledger.surface_count", first_screen_depth_surface_counts["ledger"], 4)
+    assert_equal("iwooos_projection.first_screen_depth_map_layers.runtime.surface_count", first_screen_depth_surface_counts["runtime"], 0)
+    for item in first_screen_depth_map_layers:
+        layer_id = item["layer_id"]
+        assert_equal(
+            f"iwooos_projection.first_screen_depth_map_layers.{layer_id}.display_mode",
+            item["display_mode"],
+            "first_screen_depth_map",
+        )
+        assert_equal(
+            f"iwooos_projection.first_screen_depth_map_layers.{layer_id}.default_visible",
+            item["default_visible"],
+            layer_id == "visible",
+        )
+        assert_equal(
+            f"iwooos_projection.first_screen_depth_map_layers.{layer_id}.runtime_gate_count",
+            item["runtime_gate_count"],
+            0,
+        )
+        assert_false(
+            f"iwooos_projection.first_screen_depth_map_layers.{layer_id}.runtime_execution_authorized",
+            item["runtime_execution_authorized"],
+        )
+        assert_false(
+            f"iwooos_projection.first_screen_depth_map_layers.{layer_id}.action_buttons_allowed",
+            item["action_buttons_allowed"],
+        )
+        assert_true(
+            f"iwooos_projection.first_screen_depth_map_layers.{layer_id}.not_authorization",
+            item["not_authorization"],
+        )
+    runtime_depth_layer = next(item for item in first_screen_depth_map_layers if item["layer_id"] == "runtime")
+    for flag in ["scan_authorized", "host_change_authorized", "source_control_mutation_authorized"]:
+        assert_false(
+            f"iwooos_projection.first_screen_depth_map_layers.runtime.{flag}",
+            runtime_depth_layer[flag],
+        )
+    for text in [
+        'data-testid="iwooos-first-screen-depth-map-board"',
+        'data-testid="iwooos-first-screen-depth-map-layers"',
+        'data-testid="iwooos-first-screen-depth-map-flow"',
+        'data-testid="iwooos-first-screen-depth-map-boundaries"',
+        "IwoooSFirstScreenDepthMapBoard",
+        "firstScreenDepthLayers",
+        "firstScreenDepthBoundaries",
+        "href: '#iwooos-decision-gate-visuals'",
+        "href: '#iwooos-scope-evidence-visuals'",
+    ]:
+        assert_text_contains(
+            "iwooos_page.first_screen_depth_map",
+            iwooos_projection_page,
+            text,
+        )
+    assert_text_before(
+        "iwooos_page.focus_deck_before_first_screen_depth_map",
+        iwooos_projection_page,
+        "<IwoooSFocusDeckBoard />",
+        "<IwoooSFirstScreenDepthMapBoard />",
+    )
+    assert_text_before(
+        "iwooos_page.first_screen_depth_map_before_immediate_visual_mesh",
+        iwooos_projection_page,
+        "<IwoooSFirstScreenDepthMapBoard />",
+        "<IwoooSImmediateVisualMeshBoard />",
+    )
+    for text in [
+        "iwooos_first_screen_depth_map_visible_layer_count=4",
+        "iwooos_first_screen_depth_map_advanced_group_count=2",
+        "iwooos_first_screen_depth_map_ledger_group_count=4",
+        "iwooos_first_screen_depth_map_runtime_gate_count=0",
+        "iwooos_first_screen_depth_map_advanced_default_visible=false",
+        "iwooos_first_screen_depth_map_scope_evidence_default_visible=false",
+        "runtime_execution_authorized=false",
+        "active_runtime_gate_count=0",
+        "action_buttons_allowed=false",
+        "not_authorization=true",
+    ]:
+        assert_text_contains(
+            "iwooos_page.first_screen_depth_map_boundary",
+            iwooos_projection_page,
+            text,
+        )
     assert_text_contains(
         "iwooos_page.focus_deck_testid",
         iwooos_projection_page,