diff --git a/lib/common/static/instance_settings_prefs.js b/lib/common/static/instance_settings_prefs.js
index 7aabd12..ee87c25 100644
--- a/lib/common/static/instance_settings_prefs.js
+++ b/lib/common/static/instance_settings_prefs.js
@@ -351,6 +351,7 @@
     body.dataset.envModeSectionIdx = String(modeSectionIdx);
     bindTradeModeAutoRefresh(body);
     bindCompoundBudgetVisibility(body);
+    bindMarginModeGateVisibility(body);
     return body;
   }
 
@@ -362,6 +363,12 @@
     return input ? input.closest(".env-field-row") : null;
   }
 
+  function setEnvRowHidden(row, hidden) {
+    if (!row) return;
+    row.hidden = !!hidden;
+    row.style.display = hidden ? "none" : "";
+  }
+
   function syncCompoundBudgetVisibility(body) {
     if (!body) return;
     const compoundSel = body.querySelector(
@@ -370,8 +377,18 @@
     const budgetRow = envFieldRowByKey(body, "OKX_OPTIONS_TRADE_BUDGET_USDC");
     if (!budgetRow) return;
     const compoundOn = !compoundSel || String(compoundSel.value || "").toLowerCase() === "true";
-    budgetRow.hidden = compoundOn;
-    budgetRow.style.display = compoundOn ? "none" : "";
+    setEnvRowHidden(budgetRow, compoundOn);
+  }
+
+  function syncMarginModeGateVisibility(body) {
+    if (!body) return;
+    const modeSel = body.querySelector(
+      '.env-field-input[data-env-key="OKX_OPTIONS_MARGIN_MODE"]'
+    );
+    const mode = String((modeSel && modeSel.value) || "coin").toLowerCase();
+    const coinMode = mode !== "usdc";
+    setEnvRowHidden(envFieldRowByKey(body, "OKX_OPTIONS_CLOSE_RECYCLE_MULT_USDC"), coinMode);
+    setEnvRowHidden(envFieldRowByKey(body, "OKX_OPTIONS_CLOSE_RECYCLE_MULT_COIN"), !coinMode);
   }
 
   function bindCompoundBudgetVisibility(body) {
@@ -385,6 +402,17 @@
     compoundSel.addEventListener("change", () => syncCompoundBudgetVisibility(body));
   }
 
+  function bindMarginModeGateVisibility(body) {
+    if (!body) return;
+    syncMarginModeGateVisibility(body);
+    const modeSel = body.querySelector(
+      '.env-field-input[data-env-key="OKX_OPTIONS_MARGIN_MODE"]'
+    );
+    if (!modeSel || modeSel.dataset.marginGateBound === "1") return;
+    modeSel.dataset.marginGateBound = "1";
+    modeSel.addEventListener("change", () => syncMarginModeGateVisibility(body));
+  }
+
   function bindTradeModeAutoRefresh(body) {
     const modeSel = body.querySelector('.env-field-input[data-env-key="OKX_TRADE_MODE"]');
     if (!modeSel || modeSel.dataset.modeRefreshBound === "1") return;
diff --git a/lib/env/env_ui_manifest.py b/lib/env/env_ui_manifest.py
index 2db854c..1501925 100644
--- a/lib/env/env_ui_manifest.py
+++ b/lib/env/env_ui_manifest.py
@@ -537,7 +537,7 @@ def build_env_ui_payload(
             _build_field(key, label, note, schema, values)
             for key, label, note in sec["fields"]
         ]
-        fields = _mark_compound_budget_hidden(fields)
+        fields = _mark_options_env_field_visibility(fields)
         groups.append({
             "title": sec["title"],
             "fields": fields,
@@ -546,26 +546,40 @@ def build_env_ui_payload(
     return groups
 
 
-def _mark_compound_budget_hidden(fields: list[dict[str, Any]]) -> list[dict[str, Any]]:
-    """全仓复利开启时标记单笔预算为 hidden(供 SSR/前端隐藏;切换开关仍可再显示)."""
+def _mark_options_env_field_visibility(fields: list[dict[str, Any]]) -> list[dict[str, Any]]:
+    """按本位/全仓复利隐藏无关项(供 SSR/前端;切换开关仍可再显示)."""
     compound_on = True
+    margin_mode = "coin"
     for f in fields:
-        if f.get("key") == "OKX_OPTIONS_COMPOUND_FULL_ENABLED":
-            compound_on = _env_truthy(str(f.get("current") or f.get("default") or "true"))
-            break
-    if not compound_on:
-        return fields
+        key = f.get("key")
+        cur = str(f.get("current") or f.get("default") or "").strip()
+        if key == "OKX_OPTIONS_COMPOUND_FULL_ENABLED":
+            compound_on = _env_truthy(cur or "true")
+        elif key == "OKX_OPTIONS_MARGIN_MODE":
+            margin_mode = (cur or "coin").lower()
+            if margin_mode not in ("coin", "usdc"):
+                margin_mode = "coin"
     out: list[dict[str, Any]] = []
     for f in fields:
-        if f.get("key") == "OKX_OPTIONS_TRADE_BUDGET_USDC":
-            item = dict(f)
+        item = dict(f)
+        key = item.get("key")
+        hide = False
+        if key == "OKX_OPTIONS_TRADE_BUDGET_USDC" and compound_on:
+            hide = True
+        if key == "OKX_OPTIONS_CLOSE_RECYCLE_MULT_USDC" and margin_mode == "coin":
+            hide = True
+        if key == "OKX_OPTIONS_CLOSE_RECYCLE_MULT_COIN" and margin_mode == "usdc":
+            hide = True
+        if hide:
             item["hidden"] = True
-            out.append(item)
-        else:
-            out.append(f)
+        out.append(item)
     return out
 
 
+def _mark_compound_budget_hidden(fields: list[dict[str, Any]]) -> list[dict[str, Any]]:
+    """兼容旧调用名;实际走 _mark_options_env_field_visibility."""
+    return _mark_options_env_field_visibility(fields)
+
 def filter_updates_for_ui(exchange_key: str, updates: dict[str, str]) -> dict[str, str]:
     allowed = ui_allowed_keys(exchange_key)
     return {k: v for k, v in (updates or {}).items() if k in allowed}