diff --git a/lib/common/static/options_panel.js b/lib/common/static/options_panel.js
index 0898c9d..1bdfed0 100644
--- a/lib/common/static/options_panel.js
+++ b/lib/common/static/options_panel.js
@@ -866,10 +866,12 @@
     return (
       '<div class="opt-target-row">' +
       '<span class="opt-target-row-label">委托</span>' +
-      '<input type="number" class="opt-pos-target-input" data-inst="' + inst + '" step="0.1" min="0" placeholder="目标指数价" value="' + tgt + '">' +
+      '<input type="number" class="opt-pos-target-input" data-inst="' + inst + '" step="0.1" min="0" placeholder="监控目标指数" value="' + tgt + '">' +
       '<button type="button" class="btn-secondary opt-target-set-btn" data-inst="' + inst + '">设定</button>' +
       '<button type="button" class="btn-secondary opt-target-cancel-btn" data-inst="' + inst + '"' + (armed ? "" : " disabled") + ">取消</button>" +
-      '<span class="muted opt-target-row-hint">' + (armed ? "监控中 · 达价限价平 · 无止损" : "达价限价平 · 无止损 · 到期即止损") + "</span>" +
+      '<span class="muted opt-target-row-hint">' +
+      (armed ? "监控中 · 到位按买一限价平 · 无止损" : "目标=监控指数 · 到位按买一限价平 · 到期即止损") +
+      "</span>" +
       "</div>"
     );
   }
diff --git a/lib/common/static/options_position_cards.js b/lib/common/static/options_position_cards.js
index 8cc7308..cf64c96 100644
--- a/lib/common/static/options_position_cards.js
+++ b/lib/common/static/options_position_cards.js
@@ -115,7 +115,7 @@
       '<div class="pos-cell opt-pos-cell--close"><span class="pos-label">按买盘回收</span><span class="pos-value">' + fmtClosePreview(closePreview, p.premium_paid, hub) + "</span></div>" +
       "</div>" +
       (p.target_index != null
-        ? '<div class="opt-target-row opt-target-row--ro"><span class="opt-target-row-label">委托</span><span class="pos-value">目标指数 ' + fmt(p.target_index, 1) + "</span><span class="muted opt-target-row-hint">监控中 · 达价限价平</span></div>"
+        ? '<div class="opt-target-row opt-target-row--ro"><span class="opt-target-row-label">委托</span><span class="pos-value">目标指数 ' + fmt(p.target_index, 1) + "</span><span class="muted opt-target-row-hint">监控中 · 到位按买一限价平</span></div>"
         : "")
     );
   }
diff --git a/lib/options/options_target_lib.py b/lib/options/options_target_lib.py
index d526803..ae2853b 100644
--- a/lib/options/options_target_lib.py
+++ b/lib/options/options_target_lib.py
@@ -1,4 +1,4 @@
-"""期权目标位委托:指数达价后限价平仓(无止损,到期由结算收口)."""
+"""期权目标位委托:指数目标价仅用于监控触发;触发后按买一限价平仓(无止损,到期结算)."""
 from __future__ import annotations
 
 import sqlite3
@@ -214,7 +214,7 @@ def close_option_by_bid_depth(
     *,
     sheets: int | None = None,
 ) -> dict[str, Any]:
-    """按买盘拆分限价卖出(最多5档),供目标位自动平仓复用."""
+    """目标触发后仅用买一/买盘限价卖出(最多5档);无买一则等待下次轮询,不用标记价."""
     from lib.exchange.okx_options_lib import (
         _pos_side_from_position,
         invalidate_option_positions_cache,
@@ -301,22 +301,13 @@ def close_option_by_bid_depth(
         preview = estimate_close_by_bids(book.get("bids") or [], remaining, ct_mult=ct_mult)
         levels = preview.get("levels") or []
         if not levels:
-            # 无买盘时回退:报价买一 → 报价标记价 → 持仓标记价
+            # 无买盘深度时仅允许真实买一价,不用标记价挂单
             q2 = cfg["quote_option_contract"](ex, inst_id)
-            cur_mark = _safe_float(cur_pos.get("markPx")) if cur_pos else None
-            pos_mark = _safe_float(pos.get("markPx"))
-            fallback_px = (
-                _safe_float(q2.get("bid"))
-                or _safe_float(q2.get("mark_px"))
-                or _safe_float(q.get("bid"))
-                or _safe_float(q.get("mark_px"))
-                or cur_mark
-                or pos_mark
-            )
-            if fallback_px is None or fallback_px <= 0:
-                stopped_reason = "no_bid_depth"
+            bid_px = _safe_float(q2.get("bid")) or _safe_float(q.get("bid"))
+            if bid_px is None or bid_px <= 0:
+                stopped_reason = "no_bid"
                 break
-            levels = [{"sheets": remaining, "px": fallback_px, "fallback": True}]
+            levels = [{"sheets": remaining, "px": bid_px}]
         level = levels[0]
         level_sheets = int(level.get("sheets") or 0)
         level_px = float(level.get("px") or 0)
@@ -386,7 +377,11 @@ def close_option_by_bid_depth(
                     "fully_closed": True,
                 }
             return {"ok": False, "msg": mkt.get("msg") or "市价平仓失败", "stopped_reason": stopped_reason}
-        return {"ok": False, "msg": "暂无可用买盘深度,无法限价平仓", "stopped_reason": stopped_reason}
+        return {
+            "ok": False,
+            "msg": "暂无买一,等待盘口后按买一限价平仓",
+            "stopped_reason": stopped_reason or "no_bid",
+        }
 
     avg_bid = (total_received / (submitted_sheets * ct_mult)) if submitted_sheets > 0 and ct_mult > 0 else 0
     prem_recv = round(total_received, 4)
diff --git a/lib/options/templates/options_panel.html b/lib/options/templates/options_panel.html
index 760a1a7..494663c 100644
--- a/lib/options/templates/options_panel.html
+++ b/lib/options/templates/options_panel.html
@@ -87,7 +87,7 @@
                         <span id="opt-est-profit" class="v">—</span>
                         <span class="k">目标杠杆</span>
                         <span id="opt-est-leverage" class="v" title="目标位名义价值÷权利金">—</span>
-                        <span class="muted opt-est-note">填写后进入右侧监控;达价限价平仓,无止损,到期即止损</span>
+                        <span class="muted opt-est-note">目标价=监控指数;到位后按买一限价平仓;无止损,到期即止损</span>
                     </div>
                     <div class="form-row options-order-mode-row">
                         <label><input type="radio" name="opt-size-mode" value="sheets" checked> 指定张数</label>