diff --git a/STEP_RECORD.md b/STEP_RECORD.md
index 9f27e8b..4de7b62 100644
--- a/STEP_RECORD.md
+++ b/STEP_RECORD.md
@@ -46,7 +46,7 @@ Remote: `ssh://git@nas:2222/tei/pbf.git`
 - 对比页必须保持左右联动和点击拾取功能可用
 - 对比页每次可见修改都必须 bump 版本号，并显示在“重新加载”按钮附近
 - 当前固定对比页版本号：
-  - `20nm-r3-20260331-1637`
+  - `20nm-r4-20260331-1722`
 - 这个版本号同时作为 style / tile reload 的 cache-busting 基准
 
 ## Detail PBF JP Field Inventory
@@ -294,6 +294,12 @@ Remote: `ssh://git@nas:2222/tei/pbf.git`
     - `防波堤灯台 -> symbol-daytime-302`
     - `灯 (Lt) -> symbol-daytime-303`
     - `沿岸灯台 (15M over) -> symbol-daytime-300`
+  - `r4` 版本附加修复：
+    - 关闭 `nav-light-flare`
+    - 关闭 `nav-light-arc`
+    - 即不再显示灯塔外侧的环/扇形
+    - `nav-marks / anchor-hazard-points / hazard-points` 增加 `icon-ignore-placement`
+    - 目的：优先保证灯塔、小灯和碍航点符号本体出图
 
 线上已同步：
 
diff --git a/src/pbf/navsea-compare-karatsu-20nm.html b/src/pbf/navsea-compare-karatsu-20nm.html
index d47310a..4be1a69 100644
--- a/src/pbf/navsea-compare-karatsu-20nm.html
+++ b/src/pbf/navsea-compare-karatsu-20nm.html
@@ -305,7 +305,7 @@
 
   <script src="https://unpkg.com/maplibre-gl@4.7.1/dist/maplibre-gl.js"></script>
   <script>
-    const COMPARE_VERSION = "20nm-r3-20260331-1637";
+    const COMPARE_VERSION = "20nm-r4-20260331-1722";
     const ORIGINAL_STYLE_URL = "./style.json";
     const DELIVERY_STYLE_URL = "./domain/style.navsea-delivery-karatsu-10nm.json";
     const ORIGINAL_TILE_URL = "http://192.168.200.184/newpec/exported_auto/tile.mapple-on.jp__newpec-mvt-20260106__z___x___y_.pbf/tiles/{z}/{x}/{y}.pbf";
diff --git a/src/pbf/style.navsea-delivery-karatsu-10nm.json b/src/pbf/style.navsea-delivery-karatsu-10nm.json
index 379ec15..6495147 100644
--- a/src/pbf/style.navsea-delivery-karatsu-10nm.json
+++ b/src/pbf/style.navsea-delivery-karatsu-10nm.json
@@ -1218,6 +1218,7 @@
       "source-layer": "navigation_hazard_point",
       "layout": {
         "icon-allow-overlap": true,
+        "icon-ignore-placement": true,
         "icon-image": [
           "coalesce",
           [
@@ -1252,6 +1253,8 @@
       "source-layer": "anchor_caution_hazard_point",
       "layout": {
         "icon-allow-overlap": true,
+        "icon-ignore-placement": true,
+        "icon-size": 1.05,
         "icon-image": [
           "coalesce",
           [
@@ -1268,6 +1271,7 @@
       "source": "navsea_delivery",
       "source-layer": "navigation_marks",
       "layout": {
+        "visibility": "none",
         "icon-allow-overlap": true,
         "icon-image": [
           "match",
@@ -1323,6 +1327,7 @@
       "source": "navsea_delivery",
       "source-layer": "navigation_marks",
       "layout": {
+        "visibility": "none",
         "icon-allow-overlap": true,
         "icon-rotation-alignment": "map",
         "icon-image": [
@@ -1384,6 +1389,8 @@
       "source-layer": "navigation_marks",
       "layout": {
         "icon-allow-overlap": true,
+        "icon-ignore-placement": true,
+        "icon-size": 1.08,
         "icon-image": [
           "case",
           [