diff --git a/lib/options/options_coin_open_lib.py b/lib/options/options_coin_open_lib.py
index 48db734..7853160 100644
--- a/lib/options/options_coin_open_lib.py
+++ b/lib/options/options_coin_open_lib.py
@@ -1,479 +1,473 @@
-"""币本位单笔期权:买满 USDT→币 → 开满期权 → 平后卖回."""
-from __future__ import annotations
-
-import os
-import time
-from typing import Any
-
-from lib.exchange.okx_options_lib import (
-    cap_option_buy_sheets_to_ask_depth,
-    option_buy_liquidity_ok,
-    td_mode_for_option_buy,
-    wait_option_order_full_fill,
-)
-from lib.options.options_margin_mode_lib import (
-    calc_sheets_from_coin_balance,
-    compute_coin_budget_usdt,
-    is_coin_margin_mode,
-    margin_mode_from_inst_id,
-    normalize_options_margin_mode,
-    plan_coin_open_by_budget,
-    premium_ccy_for_mode,
-)
-from lib.options.options_spot_bridge_lib import (
-    BRIDGE_BOUGHT,
-    BRIDGE_HOLDING,
-    bridge_blocks_new_open_msg,
-    fetch_trading_coin_available,
-    insert_bridge,
-    rollback_bought_coin_to_usdt,
-    sell_residual_after_option_flat,
-    spot_market_buy_coin_with_usdt,
-    update_bridge,
-)
-
-
-def coin_budget_preview(cfg: dict[str, Any], ex: Any) -> dict[str, Any]:
-    from lib.exchange.okx_options_lib import fetch_options_balances
-
-    bal = cfg.get("fetch_options_balances")(ex, force=True) if callable(cfg.get("fetch_options_balances")) else fetch_options_balances(ex, force=True)
-    trading = bal.get("trading_usdt_avail")
-    if trading is None:
-        trading = bal.get("trading_usdt")
-    try:
-        trading_f = float(trading or 0)
-    except (TypeError, ValueError):
-        trading_f = 0.0
-    buf = float(cfg.get("budget_buffer") or 0.95)
-    return compute_coin_budget_usdt(trading_f, buffer=buf)
-
-
-def open_coin_option_buy_full(
-    cfg: dict[str, Any],
-    ex: Any,
-    *,
-    inst_id: str,
-    signal_note: str = "",
-    target_index: float | None = None,
-    profit_exit_enabled: bool = False,
-    profit_exit_mult: float = 1.0,
-    target_sheets: int | None = None,
-) -> dict[str, Any]:
-    """先按最大可开张数估权利金×现货缓冲买币,再开对应张数(不全额兑换预算)."""
-    from lib.options.options_db import init_options_tables
-    from lib.options.options_position_limit_lib import (
-        compound_full_single_position_block_msg,
-        option_position_limit_block_msg,
-    )
-
-    if not is_coin_margin_mode():
-        return {"ok": False, "msg": "当前非币本位模式"}
-    if margin_mode_from_inst_id(inst_id) != "coin":
-        return {"ok": False, "msg": "合约不是币本位期权(请确认未选中 USD_UM 合约)"}
-
-    # 解析标的
-    parts = inst_id.split("-")
-    underlying = (parts[0] if parts else "ETH").upper()
-
-    conn = cfg["get_db"]()
-    try:
-        init_options_tables(conn)
-        block = bridge_blocks_new_open_msg(conn)
-        if block:
-            return {"ok": False, "msg": block, "can_open": False}
-
-        compound_block = compound_full_single_position_block_msg(
-            ex, fetch_positions=cfg.get("fetch_option_positions")
-        )
-        if compound_block:
-            return {"ok": False, "msg": compound_block, "can_open": False}
-        pos_limit_msg = option_position_limit_block_msg(
-            ex,
-            opening_inst_id=inst_id,
-            fetch_positions=cfg.get("fetch_option_positions"),
-        )
-        if pos_limit_msg:
-            return {"ok": False, "msg": pos_limit_msg, "can_open": False}
-
-        budget_info = coin_budget_preview(cfg, ex)
-        if not budget_info.get("ok"):
-            return {"ok": False, "msg": budget_info.get("msg") or "USDT 预算无效", "budget": budget_info}
-        budget_usdt = float(budget_info["budget_usdt"])
-
-        q = cfg["quote_option_contract"](ex, inst_id)
-        if not q.get("ok"):
-            return q
-        ask = q.get("ask")
-        ask_sz = q.get("ask_sz")
-        can_open, block_msg = option_buy_liquidity_ok(ask, ask_sz)
-        if not can_open:
-            return {
-                "ok": False,
-                "msg": block_msg or "暂无卖一深度,无法买入",
-                "can_open": False,
-            }
-
-        ct_mult = float(q.get("ct_mult") or 0.01)
-        min_sz = int(q.get("min_sz") or 1)
-        idx = None
-        try:
-            idx = float(q.get("index_px") or q.get("idxPx") or 0)
-        except (TypeError, ValueError):
-            idx = 0.0
-        if idx <= 0:
-            try:
-                from lib.exchange.okx_options_lib import fetch_index_price
-
-                idx = float(fetch_index_price(ex, f"{underlying}-USD") or 0)
-            except Exception:
-                idx = 0.0
-
-        plan = plan_coin_open_by_budget(
-            quote_per_unit=float(ask),
-            ct_mult=ct_mult,
-            min_sz=min_sz,
-            budget_usdt=budget_usdt,
-            index_px=float(idx),
-            ask_sz=ask_sz,
-            target_sheets=target_sheets,
-        )
-        if not plan.get("ok"):
-            return {
-                "ok": False,
-                "msg": plan.get("msg") or "无法规划买币张数",
-                "plan": plan,
-                "budget": budget_info,
-                "can_open": False,
-            }
-        buy_usdt = float(plan["buy_usdt"])
-        sheets = int(plan["sheets"])
-
-        # 1) 仅买「权利金×现货缓冲」所需 USDT,不全额兑换预算
-        coin_before = fetch_trading_coin_available(ex, underlying) or 0.0
-        buy = spot_market_buy_coin_with_usdt(ex, underlying=underlying, usdt_amount=buy_usdt)
-        if not buy.get("ok"):
-            return {
-                "ok": False,
-                "msg": f"现货买入 {underlying} 失败: {buy.get('msg')}",
-                "budget": budget_info,
-                "plan": plan,
-            }
-        bridge_id = insert_bridge(
-            conn,
-            underlying=underlying,
-            status=BRIDGE_BOUGHT,
-            budget_usdt=buy_usdt,
-            buy_ord_id=str(buy.get("ord_id") or ""),
-            inst_id=inst_id,
-            message="已买币,待开期权",
-        )
-        # 等余额落账
-        time.sleep(1.5)
-        try:
-            from lib.exchange.okx_options_lib import invalidate_options_balance_cache
-
-            invalidate_options_balance_cache()
-        except Exception:
-            pass
-        coin_after = fetch_trading_coin_available(ex, underlying)
-        if coin_after is None:
-            rb = rollback_bought_coin_to_usdt(
-                conn, ex, bridge_id=bridge_id, underlying=underlying, reason="买币后读不到可用余额"
-            )
-            return {
-                "ok": False,
-                "msg": "买币后读不到可用余额,已尝试卖回 USDT",
-                "rollback": rb,
-                "budget": budget_info,
-                "plan": plan,
-            }
-        coin_bought = max(0.0, float(coin_after) - float(coin_before or 0))
-        if coin_bought <= 0:
-            # 落账延迟时退化为用当前可用,但仍写入上限提示
-            coin_bought = float(coin_after)
-        if coin_bought <= 0:
-            rb = rollback_bought_coin_to_usdt(
-                conn, ex, bridge_id=bridge_id, underlying=underlying, reason="买入量无效"
-            )
-            return {"ok": False, "msg": "买币后可用增量无效", "rollback": rb, "budget": budget_info}
-        update_bridge(conn, bridge_id, coin_bought=float(coin_bought))
-
-        sizing = calc_sheets_from_coin_balance(
-            quote_per_unit=float(ask),
-            ct_mult=ct_mult,
-            min_sz=min_sz,
-            coin_available=float(coin_bought),
-        )
-        if not sizing.get("ok"):
-            rb = rollback_bought_coin_to_usdt(
-                conn,
-                ex,
-                bridge_id=bridge_id,
-                underlying=underlying,
-                reason=sizing.get("msg") or "张数不足",
-                coin_amount=float(coin_bought),
-            )
-            return {"ok": False, "msg": sizing.get("msg"), "sizing": sizing, "rollback": rb, "budget": budget_info, "plan": plan}
-
-        # 实盘以买到的币为准,但不超过规划张数
-        sheets = min(int(sizing["sheets"]), int(plan["sheets"]))
-        capped, cap_msg = cap_option_buy_sheets_to_ask_depth(sheets, ask_sz, min_sz=min_sz)
-        if capped is None:
-            rb = rollback_bought_coin_to_usdt(
-                conn, ex, bridge_id=bridge_id, underlying=underlying, reason=cap_msg or "深度不足"
-            )
-            return {"ok": False, "msg": cap_msg or "卖一深度不足", "rollback": rb}
-        if capped < sheets:
-            sheets = int(capped)
-            sizing = {
-                "ok": True,
-                "sheets": sheets,
-                "eth_amount": round(sheets * ct_mult, 8),
-                "coin_premium": round(sheets * float(ask) * ct_mult, 8),
-                "ask_depth_capped": True,
-            }
-        else:
-            sizing = {
-                "ok": True,
-                "sheets": sheets,
-                "eth_amount": round(sheets * ct_mult, 8),
-                "coin_premium": round(sheets * float(ask) * ct_mult, 8),
-            }
-
-        tick_sz = q.get("tick_sz")
-        order = cfg["place_option_limit_order"](
-            ex,
-            inst_id=inst_id,
-            side="buy",
-            sheets=sheets,
-            price=float(ask),
-            td_mode=td_mode_for_option_buy(cfg.get("td_mode")),
-            tick_sz=tick_sz,
-            ord_type="ioc",
-        )
-        # 51008 时自动减半张数再试一次(买币已到位,避免整笔回滚)
-        if (not order.get("ok")) and sheets > 1:
-            msg_l = str(order.get("msg") or "").lower()
-            if "51008" in str(order.get("raw") or "").lower() or "不足" in str(order.get("msg") or ""):
-                sheets2 = max(1, sheets // 2)
-                if sheets2 < sheets:
-                    order2 = cfg["place_option_limit_order"](
-                        ex,
-                        inst_id=inst_id,
-                        side="buy",
-                        sheets=sheets2,
-                        price=float(ask),
-                        td_mode=td_mode_for_option_buy(cfg.get("td_mode")),
-                        tick_sz=tick_sz,
-                        ord_type="ioc",
-                    )
-                    if order2.get("ok"):
-                        order = order2
-                        sheets = sheets2
-                        sizing = {
-                            "ok": True,
-                            "sheets": sheets,
-                            "eth_amount": round(sheets * ct_mult, 8),
-                            "coin_premium": round(sheets * float(ask) * ct_mult, 8),
-                            "retried_half": True,
-                        }
-        if not order.get("ok"):
-            rb = rollback_bought_coin_to_usdt(
-                conn, ex, bridge_id=bridge_id, underlying=underlying, reason=order.get("msg") or "下单失败"
-            )
-            return {"ok": False, "msg": order.get("msg") or "期权下单失败", "order": order, "rollback": rb}
-
-        ord_id = str((order.get("data") or {}).get("ordId") or "").strip()
-        if not ord_id:
-            rb = rollback_bought_coin_to_usdt(
-                conn, ex, bridge_id=bridge_id, underlying=underlying, reason="无订单号"
-            )
-            return {"ok": False, "msg": "下单成功但未返回订单号", "rollback": rb}
-
-        try:
-            fill_timeout = max(2.0, float(os.getenv("OKX_OPTIONS_OPEN_FILL_TIMEOUT_SEC") or "12"))
-        except (TypeError, ValueError):
-            fill_timeout = 12.0
-        fill = wait_option_order_full_fill(
-            ex,
-            inst_id=inst_id,
-            ord_id=ord_id,
-            need_sheets=int(sheets),
-            timeout_sec=fill_timeout,
-            cancel_on_timeout=True,
-        )
-        if not fill.get("ok"):
-            filled_n = int(fill.get("filled_sheets") or 0)
-            if filled_n <= 0:
-                rb = rollback_bought_coin_to_usdt(
-                    conn,
-                    ex,
-                    bridge_id=bridge_id,
-                    underlying=underlying,
-                    reason=fill.get("msg") or "未成交",
-                )
-                return {"ok": False, "msg": fill.get("msg") or "未完全成交", "fill": fill, "rollback": rb}
-            sheets = filled_n
-
-        eth_amount = round(float(sheets) * ct_mult, 8)
-        premium_paid = round(float(ask) * eth_amount, 8)
-        premium_ccy = premium_ccy_for_mode("coin", underlying)
-
-        update_bridge(
-            conn,
-            bridge_id,
-            status=BRIDGE_HOLDING,
-            inst_id=inst_id,
-            message="期权持仓中",
-        )
-
-        trade_id = _insert_coin_trade(
-            conn,
-            inst_id=inst_id,
-            underlying=underlying,
-            opt_type=str(q.get("opt_type") or ""),
-            strike=q.get("strike"),
-            exp_time=q.get("exp_time"),
-            sheets=int(sheets),
-            eth_amount=eth_amount,
-            open_quote=float(ask),
-            premium_paid=premium_paid,
-            signal_note=signal_note,
-            exchange_ord_id=ord_id,
-            bridge_id=bridge_id,
-            budget_usdt=buy_usdt,
-            premium_ccy=premium_ccy,
-            profit_exit_enabled=profit_exit_enabled,
-            profit_exit_mult=profit_exit_mult,
-        )
-
-        # 目标位 / 翻倍离场 — 复用现有逻辑若存在
-        try:
-            if target_index is not None:
-                from lib.options.options_target_lib import upsert_target_monitor
-
-                upsert_target_monitor(
-                    conn,
-                    inst_id=inst_id,
-                    underlying=underlying,
-                    opt_type=str(q.get("opt_type") or ""),
-                    target_index=float(target_index),
-                    trade_id=trade_id,
-                    sheets=int(sheets),
-                )
-        except Exception:
-            pass
-        try:
-            from lib.options.options_notify_lib import notify_options_open
-
-            notify_options_open(
-                cfg,
-                conn,
-                trade_id=trade_id,
-                inst_id=inst_id,
-                underlying=underlying,
-                opt_type=str(q.get("opt_type") or ""),
-                sheets=int(sheets),
-                premium_paid=premium_paid,
-                open_quote=float(ask),
-                target_index=target_index,
-                signal_note=signal_note,
-            )
-        except Exception:
-            pass
-
-        return {
-            "ok": True,
-            "msg": f"币本位开仓成功 {sheets} 张",
-            "margin_mode": "coin",
-            "budget": budget_info,
-            "sizing": sizing,
-            "sheets": sheets,
-            "eth_amount": eth_amount,
-            "premium_paid": premium_paid,
-            "premium_ccy": premium_ccy,
-            "bridge_id": bridge_id,
-            "trade_id": trade_id,
-            "order": order,
-            "fill": fill,
-        }
-    finally:
-        try:
-            conn.close()
-        except Exception:
-            pass
-
-
-def _insert_coin_trade(conn: Any, **kwargs: Any) -> int:
-    pe = 1 if kwargs.get("profit_exit_enabled") else 0
-    pe_mult = float(kwargs.get("profit_exit_mult") or 1.0)
-    pe_state = "active" if pe else "idle"
-    cur = conn.execute(
-        """
-        INSERT INTO options_trades(
-            inst_id, underlying, opt_type, strike, exp_time, sheets, eth_amount,
-            open_quote, premium_paid, status, signal_note, exchange_ord_id,
-            margin_mode, premium_ccy, bridge_id, budget_usdt,
-            profit_exit_enabled, profit_exit_mult, profit_exit_state
-        ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, 'open', ?, ?, 'coin', ?, ?, ?, ?, ?, ?)
-        """,
-        (
-            kwargs["inst_id"],
-            kwargs["underlying"],
-            kwargs["opt_type"],
-            kwargs.get("strike"),
-            str(kwargs.get("exp_time") or ""),
-            kwargs["sheets"],
-            kwargs["eth_amount"],
-            kwargs.get("open_quote"),
-            kwargs.get("premium_paid"),
-            kwargs.get("signal_note") or "",
-            kwargs.get("exchange_ord_id"),
-            kwargs.get("premium_ccy") or "ETH",
-            kwargs.get("bridge_id"),
-            kwargs.get("budget_usdt"),
-            pe,
-            pe_mult,
-            pe_state,
-        ),
-    )
-    conn.commit()
-    return int(cur.lastrowid)
-
-
-def maybe_sell_spot_after_close(
-    cfg: dict[str, Any],
-    ex: Any,
-    *,
-    inst_id: str,
-    close_result: dict[str, Any] | None = None,
-) -> dict[str, Any] | None:
-    """期权平仓后若该合约为币本位且已空仓,卖回本桥残留币."""
-    if margin_mode_from_inst_id(inst_id) != "coin":
-        return None
-    # 仍有仓则不卖
-    try:
-        rows = cfg["fetch_option_positions"](ex) or []
-        for p in rows:
-            if str(p.get("instId") or p.get("inst_id") or "") != inst_id:
-                continue
-            try:
-                if abs(float(p.get("pos") or 0)) > 1e-12:
-                    return {"ok": True, "skipped": True, "msg": "仍有持仓,暂不卖币"}
-            except (TypeError, ValueError):
-                pass
-    except Exception:
-        pass
-    parts = inst_id.split("-")
-    underlying = (parts[0] if parts else "ETH").upper()
-    conn = cfg["get_db"]()
-    try:
-        from lib.options.options_db import init_options_tables
-
-        init_options_tables(conn)
-        return sell_residual_after_option_flat(conn, ex, underlying=underlying, inst_id=inst_id)
-    finally:
-        try:
-            conn.close()
-        except Exception:
-            pass
+"""币本位单笔期权:买满 USDT→币 → 开满期权 → 平后卖回."""
+from __future__ import annotations
+
+import os
+import time
+from typing import Any
+
+from lib.exchange.okx_options_lib import (
+    cap_option_buy_sheets_to_ask_depth,
+    option_buy_liquidity_ok,
+    td_mode_for_option_buy,
+    wait_option_order_full_fill,
+)
+from lib.options.options_margin_mode_lib import (
+    calc_sheets_from_coin_balance,
+    compute_coin_budget_usdt,
+    is_coin_margin_mode,
+    margin_mode_from_inst_id,
+    normalize_options_margin_mode,
+    plan_coin_open_by_budget,
+    premium_ccy_for_mode,
+)
+from lib.options import options_spot_bridge_lib as _spot_bridge
+from lib.options.options_spot_bridge_lib import (
+    BRIDGE_BOUGHT,
+    BRIDGE_HOLDING,
+)
+
+
+def coin_budget_preview(cfg: dict[str, Any], ex: Any) -> dict[str, Any]:
+    from lib.exchange.okx_options_lib import fetch_options_balances
+
+    bal = cfg.get("fetch_options_balances")(ex, force=True) if callable(cfg.get("fetch_options_balances")) else fetch_options_balances(ex, force=True)
+    trading = bal.get("trading_usdt_avail")
+    if trading is None:
+        trading = bal.get("trading_usdt")
+    try:
+        trading_f = float(trading or 0)
+    except (TypeError, ValueError):
+        trading_f = 0.0
+    buf = float(cfg.get("budget_buffer") or 0.95)
+    return compute_coin_budget_usdt(trading_f, buffer=buf)
+
+
+def open_coin_option_buy_full(
+    cfg: dict[str, Any],
+    ex: Any,
+    *,
+    inst_id: str,
+    signal_note: str = "",
+    target_index: float | None = None,
+    profit_exit_enabled: bool = False,
+    profit_exit_mult: float = 1.0,
+    target_sheets: int | None = None,
+) -> dict[str, Any]:
+    """先按最大可开张数估权利金×现货缓冲买币,再开对应张数(不全额兑换预算)."""
+    from lib.options.options_db import init_options_tables
+    from lib.options.options_position_limit_lib import (
+        compound_full_single_position_block_msg,
+        option_position_limit_block_msg,
+    )
+
+    if not is_coin_margin_mode():
+        return {"ok": False, "msg": "当前非币本位模式"}
+    if margin_mode_from_inst_id(inst_id) != "coin":
+        return {"ok": False, "msg": "合约不是币本位期权(请确认未选中 USD_UM 合约)"}
+
+    # 解析标的
+    parts = inst_id.split("-")
+    underlying = (parts[0] if parts else "ETH").upper()
+
+    conn = cfg["get_db"]()
+    try:
+        init_options_tables(conn)
+        block = _spot_bridge.bridge_blocks_new_open_msg(conn)
+        if block:
+            return {"ok": False, "msg": block, "can_open": False}
+
+        compound_block = compound_full_single_position_block_msg(
+            ex, fetch_positions=cfg.get("fetch_option_positions")
+        )
+        if compound_block:
+            return {"ok": False, "msg": compound_block, "can_open": False}
+        pos_limit_msg = option_position_limit_block_msg(
+            ex,
+            opening_inst_id=inst_id,
+            fetch_positions=cfg.get("fetch_option_positions"),
+        )
+        if pos_limit_msg:
+            return {"ok": False, "msg": pos_limit_msg, "can_open": False}
+
+        budget_info = coin_budget_preview(cfg, ex)
+        if not budget_info.get("ok"):
+            return {"ok": False, "msg": budget_info.get("msg") or "USDT 预算无效", "budget": budget_info}
+        budget_usdt = float(budget_info["budget_usdt"])
+
+        q = cfg["quote_option_contract"](ex, inst_id)
+        if not q.get("ok"):
+            return q
+        ask = q.get("ask")
+        ask_sz = q.get("ask_sz")
+        can_open, block_msg = option_buy_liquidity_ok(ask, ask_sz)
+        if not can_open:
+            return {
+                "ok": False,
+                "msg": block_msg or "暂无卖一深度,无法买入",
+                "can_open": False,
+            }
+
+        ct_mult = float(q.get("ct_mult") or 0.01)
+        min_sz = int(q.get("min_sz") or 1)
+        idx = None
+        try:
+            idx = float(q.get("index_px") or q.get("idxPx") or 0)
+        except (TypeError, ValueError):
+            idx = 0.0
+        if idx <= 0:
+            try:
+                from lib.exchange.okx_options_lib import fetch_index_price
+
+                idx = float(fetch_index_price(ex, f"{underlying}-USD") or 0)
+            except Exception:
+                idx = 0.0
+
+        plan = plan_coin_open_by_budget(
+            quote_per_unit=float(ask),
+            ct_mult=ct_mult,
+            min_sz=min_sz,
+            budget_usdt=budget_usdt,
+            index_px=float(idx),
+            ask_sz=ask_sz,
+            target_sheets=target_sheets,
+        )
+        if not plan.get("ok"):
+            return {
+                "ok": False,
+                "msg": plan.get("msg") or "无法规划买币张数",
+                "plan": plan,
+                "budget": budget_info,
+                "can_open": False,
+            }
+        buy_usdt = float(plan["buy_usdt"])
+        sheets = int(plan["sheets"])
+
+        # 1) 仅买「权利金×现货缓冲」所需 USDT,不全额兑换预算
+        coin_before = _spot_bridge.fetch_trading_coin_available(ex, underlying) or 0.0
+        buy = _spot_bridge.spot_market_buy_coin_with_usdt(ex, underlying=underlying, usdt_amount=buy_usdt)
+        if not buy.get("ok"):
+            return {
+                "ok": False,
+                "msg": f"现货买入 {underlying} 失败: {buy.get('msg')}",
+                "budget": budget_info,
+                "plan": plan,
+            }
+        bridge_id = _spot_bridge.insert_bridge(
+            conn,
+            underlying=underlying,
+            status=BRIDGE_BOUGHT,
+            budget_usdt=buy_usdt,
+            buy_ord_id=str(buy.get("ord_id") or ""),
+            inst_id=inst_id,
+            message="已买币,待开期权",
+        )
+        # 等余额落账
+        time.sleep(1.5)
+        try:
+            from lib.exchange.okx_options_lib import invalidate_options_balance_cache
+
+            invalidate_options_balance_cache()
+        except Exception:
+            pass
+        coin_after = _spot_bridge.fetch_trading_coin_available(ex, underlying)
+        if coin_after is None:
+            rb = _spot_bridge.rollback_bought_coin_to_usdt(
+                conn, ex, bridge_id=bridge_id, underlying=underlying, reason="买币后读不到可用余额"
+            )
+            return {
+                "ok": False,
+                "msg": "买币后读不到可用余额,已尝试卖回 USDT",
+                "rollback": rb,
+                "budget": budget_info,
+                "plan": plan,
+            }
+        coin_bought = max(0.0, float(coin_after) - float(coin_before or 0))
+        if coin_bought <= 0:
+            # 落账延迟时退化为用当前可用,但仍写入上限提示
+            coin_bought = float(coin_after)
+        if coin_bought <= 0:
+            rb = _spot_bridge.rollback_bought_coin_to_usdt(
+                conn, ex, bridge_id=bridge_id, underlying=underlying, reason="买入量无效"
+            )
+            return {"ok": False, "msg": "买币后可用增量无效", "rollback": rb, "budget": budget_info}
+        _spot_bridge.update_bridge(conn, bridge_id, coin_bought=float(coin_bought))
+
+        sizing = calc_sheets_from_coin_balance(
+            quote_per_unit=float(ask),
+            ct_mult=ct_mult,
+            min_sz=min_sz,
+            coin_available=float(coin_bought),
+        )
+        if not sizing.get("ok"):
+            rb = _spot_bridge.rollback_bought_coin_to_usdt(
+                conn,
+                ex,
+                bridge_id=bridge_id,
+                underlying=underlying,
+                reason=sizing.get("msg") or "张数不足",
+                coin_amount=float(coin_bought),
+            )
+            return {"ok": False, "msg": sizing.get("msg"), "sizing": sizing, "rollback": rb, "budget": budget_info, "plan": plan}
+
+        # 实盘以买到的币为准,但不超过规划张数
+        sheets = min(int(sizing["sheets"]), int(plan["sheets"]))
+        capped, cap_msg = cap_option_buy_sheets_to_ask_depth(sheets, ask_sz, min_sz=min_sz)
+        if capped is None:
+            rb = _spot_bridge.rollback_bought_coin_to_usdt(
+                conn, ex, bridge_id=bridge_id, underlying=underlying, reason=cap_msg or "深度不足"
+            )
+            return {"ok": False, "msg": cap_msg or "卖一深度不足", "rollback": rb}
+        if capped < sheets:
+            sheets = int(capped)
+            sizing = {
+                "ok": True,
+                "sheets": sheets,
+                "eth_amount": round(sheets * ct_mult, 8),
+                "coin_premium": round(sheets * float(ask) * ct_mult, 8),
+                "ask_depth_capped": True,
+            }
+        else:
+            sizing = {
+                "ok": True,
+                "sheets": sheets,
+                "eth_amount": round(sheets * ct_mult, 8),
+                "coin_premium": round(sheets * float(ask) * ct_mult, 8),
+            }
+
+        tick_sz = q.get("tick_sz")
+        order = cfg["place_option_limit_order"](
+            ex,
+            inst_id=inst_id,
+            side="buy",
+            sheets=sheets,
+            price=float(ask),
+            td_mode=td_mode_for_option_buy(cfg.get("td_mode")),
+            tick_sz=tick_sz,
+            ord_type="ioc",
+        )
+        # 51008 时自动减半张数再试一次(买币已到位,避免整笔回滚)
+        if (not order.get("ok")) and sheets > 1:
+            msg_l = str(order.get("msg") or "").lower()
+            if "51008" in str(order.get("raw") or "").lower() or "不足" in str(order.get("msg") or ""):
+                sheets2 = max(1, sheets // 2)
+                if sheets2 < sheets:
+                    order2 = cfg["place_option_limit_order"](
+                        ex,
+                        inst_id=inst_id,
+                        side="buy",
+                        sheets=sheets2,
+                        price=float(ask),
+                        td_mode=td_mode_for_option_buy(cfg.get("td_mode")),
+                        tick_sz=tick_sz,
+                        ord_type="ioc",
+                    )
+                    if order2.get("ok"):
+                        order = order2
+                        sheets = sheets2
+                        sizing = {
+                            "ok": True,
+                            "sheets": sheets,
+                            "eth_amount": round(sheets * ct_mult, 8),
+                            "coin_premium": round(sheets * float(ask) * ct_mult, 8),
+                            "retried_half": True,
+                        }
+        if not order.get("ok"):
+            rb = _spot_bridge.rollback_bought_coin_to_usdt(
+                conn, ex, bridge_id=bridge_id, underlying=underlying, reason=order.get("msg") or "下单失败"
+            )
+            return {"ok": False, "msg": order.get("msg") or "期权下单失败", "order": order, "rollback": rb}
+
+        ord_id = str((order.get("data") or {}).get("ordId") or "").strip()
+        if not ord_id:
+            rb = _spot_bridge.rollback_bought_coin_to_usdt(
+                conn, ex, bridge_id=bridge_id, underlying=underlying, reason="无订单号"
+            )
+            return {"ok": False, "msg": "下单成功但未返回订单号", "rollback": rb}
+
+        try:
+            fill_timeout = max(2.0, float(os.getenv("OKX_OPTIONS_OPEN_FILL_TIMEOUT_SEC") or "12"))
+        except (TypeError, ValueError):
+            fill_timeout = 12.0
+        fill = wait_option_order_full_fill(
+            ex,
+            inst_id=inst_id,
+            ord_id=ord_id,
+            need_sheets=int(sheets),
+            timeout_sec=fill_timeout,
+            cancel_on_timeout=True,
+        )
+        if not fill.get("ok"):
+            filled_n = int(fill.get("filled_sheets") or 0)
+            if filled_n <= 0:
+                rb = _spot_bridge.rollback_bought_coin_to_usdt(
+                    conn,
+                    ex,
+                    bridge_id=bridge_id,
+                    underlying=underlying,
+                    reason=fill.get("msg") or "未成交",
+                )
+                return {"ok": False, "msg": fill.get("msg") or "未完全成交", "fill": fill, "rollback": rb}
+            sheets = filled_n
+
+        eth_amount = round(float(sheets) * ct_mult, 8)
+        premium_paid = round(float(ask) * eth_amount, 8)
+        premium_ccy = premium_ccy_for_mode("coin", underlying)
+
+        _spot_bridge.update_bridge(
+            conn,
+            bridge_id,
+            status=BRIDGE_HOLDING,
+            inst_id=inst_id,
+            message="期权持仓中",
+        )
+
+        trade_id = _insert_coin_trade(
+            conn,
+            inst_id=inst_id,
+            underlying=underlying,
+            opt_type=str(q.get("opt_type") or ""),
+            strike=q.get("strike"),
+            exp_time=q.get("exp_time"),
+            sheets=int(sheets),
+            eth_amount=eth_amount,
+            open_quote=float(ask),
+            premium_paid=premium_paid,
+            signal_note=signal_note,
+            exchange_ord_id=ord_id,
+            bridge_id=bridge_id,
+            budget_usdt=buy_usdt,
+            premium_ccy=premium_ccy,
+            profit_exit_enabled=profit_exit_enabled,
+            profit_exit_mult=profit_exit_mult,
+        )
+
+        # 目标位 / 翻倍离场 — 复用现有逻辑若存在
+        try:
+            if target_index is not None:
+                from lib.options.options_target_lib import upsert_target_monitor
+
+                upsert_target_monitor(
+                    conn,
+                    inst_id=inst_id,
+                    underlying=underlying,
+                    opt_type=str(q.get("opt_type") or ""),
+                    target_index=float(target_index),
+                    trade_id=trade_id,
+                    sheets=int(sheets),
+                )
+        except Exception:
+            pass
+        try:
+            from lib.options.options_notify_lib import notify_options_open
+
+            notify_options_open(
+                cfg,
+                conn,
+                trade_id=trade_id,
+                inst_id=inst_id,
+                underlying=underlying,
+                opt_type=str(q.get("opt_type") or ""),
+                sheets=int(sheets),
+                premium_paid=premium_paid,
+                open_quote=float(ask),
+                target_index=target_index,
+                signal_note=signal_note,
+            )
+        except Exception:
+            pass
+
+        return {
+            "ok": True,
+            "msg": f"币本位开仓成功 {sheets} 张",
+            "margin_mode": "coin",
+            "budget": budget_info,
+            "sizing": sizing,
+            "sheets": sheets,
+            "eth_amount": eth_amount,
+            "premium_paid": premium_paid,
+            "premium_ccy": premium_ccy,
+            "bridge_id": bridge_id,
+            "trade_id": trade_id,
+            "order": order,
+            "fill": fill,
+        }
+    finally:
+        try:
+            conn.close()
+        except Exception:
+            pass
+
+
+def _insert_coin_trade(conn: Any, **kwargs: Any) -> int:
+    pe = 1 if kwargs.get("profit_exit_enabled") else 0
+    pe_mult = float(kwargs.get("profit_exit_mult") or 1.0)
+    pe_state = "active" if pe else "idle"
+    cur = conn.execute(
+        """
+        INSERT INTO options_trades(
+            inst_id, underlying, opt_type, strike, exp_time, sheets, eth_amount,
+            open_quote, premium_paid, status, signal_note, exchange_ord_id,
+            margin_mode, premium_ccy, bridge_id, budget_usdt,
+            profit_exit_enabled, profit_exit_mult, profit_exit_state
+        ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, 'open', ?, ?, 'coin', ?, ?, ?, ?, ?, ?)
+        """,
+        (
+            kwargs["inst_id"],
+            kwargs["underlying"],
+            kwargs["opt_type"],
+            kwargs.get("strike"),
+            str(kwargs.get("exp_time") or ""),
+            kwargs["sheets"],
+            kwargs["eth_amount"],
+            kwargs.get("open_quote"),
+            kwargs.get("premium_paid"),
+            kwargs.get("signal_note") or "",
+            kwargs.get("exchange_ord_id"),
+            kwargs.get("premium_ccy") or "ETH",
+            kwargs.get("bridge_id"),
+            kwargs.get("budget_usdt"),
+            pe,
+            pe_mult,
+            pe_state,
+        ),
+    )
+    conn.commit()
+    return int(cur.lastrowid)
+
+
+def maybe_sell_spot_after_close(
+    cfg: dict[str, Any],
+    ex: Any,
+    *,
+    inst_id: str,
+    close_result: dict[str, Any] | None = None,
+) -> dict[str, Any] | None:
+    """期权平仓后若该合约为币本位且已空仓,卖回本桥残留币."""
+    if margin_mode_from_inst_id(inst_id) != "coin":
+        return None
+    # 仍有仓则不卖
+    try:
+        rows = cfg["fetch_option_positions"](ex) or []
+        for p in rows:
+            if str(p.get("instId") or p.get("inst_id") or "") != inst_id:
+                continue
+            try:
+                if abs(float(p.get("pos") or 0)) > 1e-12:
+                    return {"ok": True, "skipped": True, "msg": "仍有持仓,暂不卖币"}
+            except (TypeError, ValueError):
+                pass
+    except Exception:
+        pass
+    parts = inst_id.split("-")
+    underlying = (parts[0] if parts else "ETH").upper()
+    conn = cfg["get_db"]()
+    try:
+        from lib.options.options_db import init_options_tables
+
+        init_options_tables(conn)
+        return _spot_bridge.sell_residual_after_option_flat(conn, ex, underlying=underlying, inst_id=inst_id)
+    finally:
+        try:
+            conn.close()
+        except Exception:
+            pass
diff --git a/lib/sim/broker_lib.py b/lib/sim/broker_lib.py
index 27caa53..d0e4523 100644
--- a/lib/sim/broker_lib.py
+++ b/lib/sim/broker_lib.py
@@ -64,6 +64,19 @@ def _contract_size(exchange: Any, symbol: str) -> float:
     return 1.0
 
 
+def _premium_ccy_for_inst(inst_id: str) -> str:
+    try:
+        from lib.options.options_margin_mode_lib import (
+            margin_mode_from_inst_id,
+            premium_ccy_for_mode,
+        )
+
+        underly = (str(inst_id or "").split("-")[0] or "ETH").upper()
+        return premium_ccy_for_mode(margin_mode_from_inst_id(inst_id), underly)
+    except Exception:
+        return "USDC"
+
+
 class SimBroker:
     def __init__(self, get_db: Callable) -> None:
         self.get_db = get_db
@@ -377,9 +390,10 @@ class SimBroker:
         qty = n * ct_mult
         pr = option_fill(action="open", bid=bid, ask=ask, qty=qty, fee_rate=fr)
         cost = pr.notional + pr.fee
+        prem_ccy = _premium_ccy_for_inst(inst_id)
         try:
             self.wallets.debit_trading(
-                "USDC",
+                prem_ccy,
                 cost,
                 kind="option_open",
                 note=f"buy {inst_id} x{n}@{pr.fill_px}",
@@ -490,8 +504,9 @@ class SimBroker:
             conn.close()
 
         if credit > 0:
+            prem_ccy = _premium_ccy_for_inst(inst_id)
             self.wallets.credit_trading(
-                "USDC",
+                prem_ccy,
                 credit,
                 kind="option_close",
                 note=f"sell {inst_id} x{close_n}@{pr.fill_px}",
@@ -552,6 +567,67 @@ class SimBroker:
         )
         return result
 
+    def convert_usdt_coin(
+        self,
+        exchange: Any,
+        *,
+        underlying: str,
+        direction: str,
+        amount: float,
+        fee_rate: float | None = None,
+        account: str = "trading",
+    ) -> dict[str, Any]:
+        """模拟 ETH/BTC-USDT 现货市价兑换(交易账户)."""
+        from lib.options.options_margin_mode_lib import spot_quote_inst_id
+        from lib.sim.pricing_lib import spot_coin_usdt_fill
+
+        coin = (underlying or "ETH").strip().upper() or "ETH"
+        if coin not in ("ETH", "BTC"):
+            return {"ok": False, "msg": f"不支持标的 {coin}"}
+        # spot_quote_inst_id → ETH-USDT；ccxt 常用 ETH/USDT
+        inst = spot_quote_inst_id(coin)
+        symbol = inst.replace("-", "/") if inst else f"{coin}/USDT"
+        fr = sim_fee_rate(fee_rate)
+        bid, ask = _ticker_bid_ask(exchange, symbol)
+        fill = spot_coin_usdt_fill(
+            direction=direction,
+            amount=float(amount),
+            bid=bid,
+            ask=ask,
+            fee_rate=fr,
+            coin=coin,
+        )
+        result = SimWallets(self.get_db).convert(
+            from_ccy=fill.from_ccy,
+            to_ccy=fill.to_ccy,
+            amount=fill.from_amount,
+            account=account or "trading",
+            to_amount=fill.to_amount,
+            rate=fill.fill_px,
+            fee=fill.fee,
+            note=f"{symbol} mkt {fill.fill_px:.4f} (bid {bid:.4f}/ask {ask:.4f})",
+        )
+        if not result.get("ok"):
+            return result
+        result.update(
+            {
+                "direction": fill.direction,
+                "underlying": coin,
+                "bid": bid,
+                "ask": ask,
+                "base_px": fill.base_px,
+                "fill_px": fill.fill_px,
+                "fee_rate": fr,
+                "symbol": symbol,
+                "inst_id": inst,
+                "coin_bought": fill.to_amount if fill.direction == "usdt_to_coin" else None,
+                "coin_sold": fill.from_amount if fill.direction == "coin_to_usdt" else None,
+                "usdt_spent": fill.from_amount if fill.direction == "usdt_to_coin" else None,
+                "usdt_recovered": fill.to_amount if fill.direction == "coin_to_usdt" else None,
+            }
+        )
+        return result
+
     def _index_px_for_option(
         self,
         exchange: Any,
@@ -645,6 +721,14 @@ class SimBroker:
             else:
                 intrinsic_u = 0.0
 
+            prem_ccy = _premium_ccy_for_inst(inst_id)
+            # 币本位到期兑付用币数量: 实值/指数 × 张数 × 乘数
+            if prem_ccy in ("ETH", "BTC") and float(spot) > 0:
+                settle_recv = round(
+                    max(0.0, (intrinsic_u / float(spot)) * sheets * ct_mult),
+                    8,
+                )
+
             conn = self.get_db()
             try:
                 conn.execute("DELETE FROM sim_option_positions WHERE inst_id=?", (inst_id,))
@@ -681,7 +765,7 @@ class SimBroker:
 
             if settle_recv > 1e-12:
                 self.wallets.credit_trading(
-                    "USDC",
+                    prem_ccy,
                     settle_recv,
                     kind="option_expiry",
                     note=f"expiry settle {inst_id} @{spot:g} recv={settle_recv}",
diff --git a/lib/sim/db_lib.py b/lib/sim/db_lib.py
index 6548d65..9d0b7a4 100644
--- a/lib/sim/db_lib.py
+++ b/lib/sim/db_lib.py
@@ -14,6 +14,19 @@ def _env_float(key: str, default: float) -> float:
         return float(default)
 
 
+def _ensure_sim_wallet_coin_columns(conn: sqlite3.Connection) -> None:
+    """旧库补齐币本位 ETH/BTC 列."""
+    cols = {
+        str(r[1])
+        for r in conn.execute("PRAGMA table_info(sim_wallets)").fetchall()
+    }
+    for col in ("funding_eth", "trading_eth", "funding_btc", "trading_btc"):
+        if col not in cols:
+            conn.execute(
+                f"ALTER TABLE sim_wallets ADD COLUMN {col} REAL NOT NULL DEFAULT 0"
+            )
+
+
 def init_sim_tables(conn: sqlite3.Connection) -> None:
     conn.execute(
         """
@@ -23,10 +36,15 @@ def init_sim_tables(conn: sqlite3.Connection) -> None:
             trading_usdt REAL NOT NULL DEFAULT 0,
             funding_usdc REAL NOT NULL DEFAULT 0,
             trading_usdc REAL NOT NULL DEFAULT 0,
+            funding_eth REAL NOT NULL DEFAULT 0,
+            trading_eth REAL NOT NULL DEFAULT 0,
+            funding_btc REAL NOT NULL DEFAULT 0,
+            trading_btc REAL NOT NULL DEFAULT 0,
             updated_at TEXT
         )
         """
     )
+    _ensure_sim_wallet_coin_columns(conn)
     conn.execute(
         """
         CREATE TABLE IF NOT EXISTS sim_perp_positions (
diff --git a/lib/sim/hooks.py b/lib/sim/hooks.py
index 3d755e6..66e1cbe 100644
--- a/lib/sim/hooks.py
+++ b/lib/sim/hooks.py
@@ -192,10 +192,10 @@ def _patch_okx_options_lib(app_module: Any) -> None:
             if _GET_DB is not None and is_sim_mode(_GET_DB):
                 w = broker().balances_header()
                 return (
-                    round(float(w["trading_usdc"]), 2),
-                    round(float(w["funding_usdc"]), 2),
-                    round(float(w["funding_usdt"]), 2),
-                    round(float(w["trading_usdt"]), 2),
+                    round(float(w.get("trading_usdc") or 0), 2),
+                    round(float(w.get("funding_usdc") or 0), 2),
+                    round(float(w.get("funding_usdt") or 0), 2),
+                    round(float(w.get("trading_usdt") or 0), 2),
                 )
         except Exception:
             pass
@@ -207,20 +207,32 @@ def _patch_okx_options_lib(app_module: Any) -> None:
         try:
             if _GET_DB is not None and is_sim_mode(_GET_DB):
                 w = broker().balances_header()
-                fu = float(w["funding_usdt"])
-                fc = float(w["funding_usdc"])
-                tu = float(w["trading_usdt"])
-                tc = float(w["trading_usdc"])
+                fu = float(w.get("funding_usdt") or 0)
+                fc = float(w.get("funding_usdc") or 0)
+                tu = float(w.get("trading_usdt") or 0)
+                tc = float(w.get("trading_usdc") or 0)
+                fe = float(w.get("funding_eth") or 0)
+                te = float(w.get("trading_eth") or 0)
+                fb = float(w.get("funding_btc") or 0)
+                tb = float(w.get("trading_btc") or 0)
                 return {
                     "scope": "main",
                     "funding_usdt": fu,
                     "funding_usdc": fc,
                     "trading_usdt": tu,
                     "trading_usdc": tc,
+                    "funding_eth": fe,
+                    "trading_eth": te,
+                    "funding_btc": fb,
+                    "trading_btc": tb,
                     "funding_usdt_avail": fu,
                     "funding_usdc_avail": fc,
                     "trading_usdt_avail": tu,
                     "trading_usdc_avail": tc,
+                    "funding_eth_avail": fe,
+                    "trading_eth_avail": te,
+                    "funding_btc_avail": fb,
+                    "trading_btc_avail": tb,
                 }
         except Exception:
             pass
@@ -355,6 +367,130 @@ def _patch_okx_options_lib(app_module: Any) -> None:
     opt_lib.fetch_option_positions = fetch_option_positions
     opt_lib._sim_hooks_applied = True
 
+    _patch_spot_bridge_lib()
+
+
+def _patch_spot_bridge_lib() -> None:
+    """币本位现货桥:模拟盘走本地 USDT↔ETH/BTC,勿打实盘 private_post_trade_order."""
+    import lib.options.options_spot_bridge_lib as bridge_lib
+
+    if getattr(bridge_lib, "_sim_hooks_applied", False):
+        return
+
+    _orig_buy = bridge_lib.spot_market_buy_coin_with_usdt
+    _orig_sell = bridge_lib.spot_market_sell_coin_to_usdt
+    _orig_avail = bridge_lib.fetch_trading_coin_available
+
+    def fetch_trading_coin_available(ex, ccy: str):
+        try:
+            if _GET_DB is not None and is_sim_mode(_GET_DB):
+                ccy_u = (ccy or "").strip().upper()
+                if ccy_u not in ("ETH", "BTC"):
+                    return None
+                w = broker().balances_header()
+                return float(w.get(f"trading_{ccy_u.lower()}") or 0)
+        except Exception:
+            pass
+        return _orig_avail(ex, ccy)
+
+    def spot_market_buy_coin_with_usdt(ex, *, underlying: str, usdt_amount: float):
+        try:
+            if _GET_DB is not None and is_sim_mode(_GET_DB):
+                pub = ex
+                if pub is None and _APP_MODULE is not None:
+                    pub = getattr(_APP_MODULE, "exchange", None) or getattr(
+                        _APP_MODULE, "exchange_options", None
+                    )
+                if pub is None:
+                    return {"ok": False, "msg": "sim: 无公开行情 exchange"}
+                result = broker().convert_usdt_coin(
+                    pub,
+                    underlying=underlying,
+                    direction="usdt_to_coin",
+                    amount=float(usdt_amount),
+                    account="trading",
+                )
+                if not result.get("ok"):
+                    return {
+                        "ok": False,
+                        "msg": result.get("detail") or result.get("msg") or "买币失败",
+                    }
+                try:
+                    from lib.instance.instance_live_push_lib import notify_instance_balance_changed
+
+                    notify_instance_balance_changed()
+                except Exception:
+                    pass
+                return {
+                    "ok": True,
+                    "inst_id": result.get("inst_id") or "",
+                    "ord_id": f"sim-spot-buy-{result.get('fill_px') or 0}",
+                    "sim": True,
+                    "coin_bought": result.get("coin_bought"),
+                    "data": {"sCode": "0", "sMsg": "sim filled"},
+                    **{k: result[k] for k in ("fill_px", "usdt_spent", "underlying") if k in result},
+                }
+        except Exception as e:
+            return {"ok": False, "msg": str(e)}
+        return _orig_buy(ex, underlying=underlying, usdt_amount=usdt_amount)
+
+    def spot_market_sell_coin_to_usdt(ex, *, underlying: str, coin_amount: float | None = None):
+        try:
+            if _GET_DB is not None and is_sim_mode(_GET_DB):
+                coin = (underlying or "ETH").strip().upper() or "ETH"
+                amt = coin_amount
+                if amt is None or float(amt) <= 0:
+                    amt = fetch_trading_coin_available(ex, coin)
+                    if amt is None or float(amt) <= 0:
+                        return {"ok": False, "msg": f"交易账户无可用 {coin}"}
+                sell_sz = float(amt)
+                if sell_sz > 1e-8:
+                    sell_sz = max(0.0, sell_sz * 0.999)
+                if sell_sz <= 0:
+                    return {"ok": False, "msg": f"{coin} 可卖数量过小"}
+                pub = ex
+                if pub is None and _APP_MODULE is not None:
+                    pub = getattr(_APP_MODULE, "exchange", None) or getattr(
+                        _APP_MODULE, "exchange_options", None
+                    )
+                if pub is None:
+                    return {"ok": False, "msg": "sim: 无公开行情 exchange"}
+                result = broker().convert_usdt_coin(
+                    pub,
+                    underlying=coin,
+                    direction="coin_to_usdt",
+                    amount=float(sell_sz),
+                    account="trading",
+                )
+                if not result.get("ok"):
+                    return {
+                        "ok": False,
+                        "msg": result.get("detail") or result.get("msg") or "卖币失败",
+                    }
+                try:
+                    from lib.instance.instance_live_push_lib import notify_instance_balance_changed
+
+                    notify_instance_balance_changed()
+                except Exception:
+                    pass
+                return {
+                    "ok": True,
+                    "inst_id": result.get("inst_id") or "",
+                    "ord_id": f"sim-spot-sell-{result.get('fill_px') or 0}",
+                    "coin_sold": float(sell_sz),
+                    "sim": True,
+                    "usdt_recovered": result.get("usdt_recovered"),
+                    "data": {"sCode": "0", "sMsg": "sim filled"},
+                }
+        except Exception as e:
+            return {"ok": False, "msg": str(e)}
+        return _orig_sell(ex, underlying=underlying, coin_amount=coin_amount)
+
+    bridge_lib.fetch_trading_coin_available = fetch_trading_coin_available
+    bridge_lib.spot_market_buy_coin_with_usdt = spot_market_buy_coin_with_usdt
+    bridge_lib.spot_market_sell_coin_to_usdt = spot_market_sell_coin_to_usdt
+    bridge_lib._sim_hooks_applied = True
+
 
 def wrap_option_place_fns(get_db: Callable, live_place_limit, live_place_market):
     """返回按模式分流的 place_option_limit/market."""
diff --git a/lib/sim/pricing_lib.py b/lib/sim/pricing_lib.py
index 83d2939..a5e2255 100644
--- a/lib/sim/pricing_lib.py
+++ b/lib/sim/pricing_lib.py
@@ -145,3 +145,58 @@ def spot_usdc_usdt_fill(
             fee=fee,
         )
     raise ValueError("direction 须为 usdt_to_usdc 或 usdc_to_usdt")
+
+
+def spot_coin_usdt_fill(
+    *,
+    direction: str,
+    amount: float,
+    bid: float,
+    ask: float,
+    fee_rate: float,
+    coin: str = "ETH",
+) -> SpotConvertResult:
+    """
+    对齐实盘 ETH-USDT / BTC-USDT 现货市价:
+    - usdt_to_coin: 用 USDT 买币, 吃卖一 ×(1+f); amount=USDT
+    - coin_to_usdt: 卖币换 USDT, 吃买一 ×(1-f); amount=币数量
+    """
+    f = float(fee_rate)
+    amt = float(amount)
+    ccy = (coin or "ETH").strip().upper() or "ETH"
+    d = (direction or "").strip().lower()
+    if d in ("usdt_to_coin", "usdt_to_eth", "usdt_to_btc"):
+        base = float(ask)
+        fill = base * (1.0 + f)
+        if fill <= 0:
+            raise ValueError("无效卖一价")
+        to_amt = amt / fill
+        fee = amt * f
+        return SpotConvertResult(
+            direction="usdt_to_coin",
+            from_ccy="USDT",
+            to_ccy=ccy,
+            from_amount=amt,
+            to_amount=to_amt,
+            base_px=base,
+            fill_px=fill,
+            fee=fee,
+        )
+    if d in ("coin_to_usdt", "eth_to_usdt", "btc_to_usdt"):
+        base = float(bid)
+        fill = base * (1.0 - f)
+        if fill <= 0:
+            raise ValueError("无效买一价")
+        to_amt = amt * fill
+        fee = to_amt * f
+        return SpotConvertResult(
+            direction="coin_to_usdt",
+            from_ccy=ccy,
+            to_ccy="USDT",
+            from_amount=amt,
+            to_amount=to_amt,
+            base_px=base,
+            fill_px=fill,
+            fee=fee,
+        )
+    raise ValueError("direction 须为 usdt_to_coin 或 coin_to_usdt")
diff --git a/lib/sim/wallets_lib.py b/lib/sim/wallets_lib.py
index 8c729f6..b5800ac 100644
--- a/lib/sim/wallets_lib.py
+++ b/lib/sim/wallets_lib.py
@@ -1,4 +1,4 @@
-"""模拟资金钱包: funding/trading × USDT/USDC."""
+"""模拟资金钱包: funding/trading × USDT/USDC/ETH/BTC."""
 
 from __future__ import annotations
 
@@ -11,6 +11,10 @@ WALLET_KEYS = (
     "trading_usdt",
     "funding_usdc",
     "trading_usdc",
+    "funding_eth",
+    "trading_eth",
+    "funding_btc",
+    "trading_btc",
 )
 
 _ACCT_MAP = {
@@ -18,6 +22,10 @@ _ACCT_MAP = {
     ("trading", "usdt"): "trading_usdt",
     ("funding", "usdc"): "funding_usdc",
     ("trading", "usdc"): "trading_usdc",
+    ("funding", "eth"): "funding_eth",
+    ("trading", "eth"): "trading_eth",
+    ("funding", "btc"): "funding_btc",
+    ("trading", "btc"): "trading_btc",
 }
 
 
@@ -42,13 +50,26 @@ class SimWallets:
     def _now(self) -> str:
         return datetime.utcnow().strftime("%Y-%m-%d %H:%M:%S")
 
+    def _row_to_snap(self, row: Any) -> dict[str, float]:
+        if row is None:
+            return {k: 0.0 for k in WALLET_KEYS}
+        keys = set(row.keys()) if hasattr(row, "keys") else set()
+        out: dict[str, float] = {}
+        for k in WALLET_KEYS:
+            if keys and k not in keys:
+                out[k] = 0.0
+            else:
+                try:
+                    out[k] = float(row[k] or 0)
+                except (KeyError, IndexError, TypeError, ValueError):
+                    out[k] = 0.0
+        return out
+
     def snapshot(self) -> dict[str, float]:
         conn = self.get_db()
         try:
             row = conn.execute("SELECT * FROM sim_wallets WHERE id=1").fetchone()
-            if row is None:
-                return {k: 0.0 for k in WALLET_KEYS}
-            return {k: float(row[k] or 0) for k in WALLET_KEYS}
+            return self._row_to_snap(row)
         finally:
             conn.close()
 
@@ -56,6 +77,7 @@ class SimWallets:
         return self.snapshot()
 
     def total_usdt_equiv(self, snap: dict[str, float] | None = None) -> float:
+        """稳定币合计(不含 ETH/BTC 折算)."""
         v = snap or self.view()
         return round(
             float(v.get("funding_usdt") or 0)
@@ -71,23 +93,30 @@ class SimWallets:
             conn = self.get_db()
         try:
             now = self._now()
+            full = {k: float(snap.get(k) or 0) for k in WALLET_KEYS}
             conn.execute(
                 """
                 UPDATE sim_wallets SET
-                    funding_usdt=?, trading_usdt=?, funding_usdc=?, trading_usdc=?, updated_at=?
+                    funding_usdt=?, trading_usdt=?, funding_usdc=?, trading_usdc=?,
+                    funding_eth=?, trading_eth=?, funding_btc=?, trading_btc=?,
+                    updated_at=?
                 WHERE id=1
                 """,
                 (
-                    float(snap["funding_usdt"]),
-                    float(snap["trading_usdt"]),
-                    float(snap["funding_usdc"]),
-                    float(snap["trading_usdc"]),
+                    full["funding_usdt"],
+                    full["trading_usdt"],
+                    full["funding_usdc"],
+                    full["trading_usdc"],
+                    full["funding_eth"],
+                    full["trading_eth"],
+                    full["funding_btc"],
+                    full["trading_btc"],
                     now,
                 ),
             )
             if owns:
                 conn.commit()
-            return {k: float(snap[k]) for k in WALLET_KEYS}
+            return full
         finally:
             if owns:
                 conn.close()
@@ -117,14 +146,14 @@ class SimWallets:
             raise ValueError("扣款金额须大于 0")
         key = _ACCT_MAP.get(("trading", (ccy or "").lower()))
         if not key:
-            raise ValueError("币种须为 USDT 或 USDC")
+            raise ValueError("币种须为 USDT/USDC/ETH/BTC")
         conn = self.get_db()
         try:
             row = conn.execute("SELECT * FROM sim_wallets WHERE id=1").fetchone()
-            snap = {k: float(row[k] or 0) for k in WALLET_KEYS}
+            snap = self._row_to_snap(row)
             bal = float(snap[key])
             if amt > bal + 1e-9:
-                raise InsufficientFunds(f"交易账户 {ccy.upper()} 不足(可用 {bal:.4f})")
+                raise InsufficientFunds(f"交易账户 {ccy.upper()} 不足(可用 {bal:.8f})")
             snap[key] = bal - amt
             self._write(snap, conn=conn)
             self._ledger(
@@ -149,11 +178,11 @@ class SimWallets:
             return self.snapshot()
         key = _ACCT_MAP.get(("trading", (ccy or "").lower()))
         if not key:
-            raise ValueError("币种须为 USDT 或 USDC")
+            raise ValueError("币种须为 USDT/USDC/ETH/BTC")
         conn = self.get_db()
         try:
             row = conn.execute("SELECT * FROM sim_wallets WHERE id=1").fetchone()
-            snap = {k: float(row[k] or 0) for k in WALLET_KEYS}
+            snap = self._row_to_snap(row)
             snap[key] = float(snap[key]) + amt
             self._write(snap, conn=conn)
             self._ledger(
@@ -191,14 +220,14 @@ class SimWallets:
         src_key = _ACCT_MAP.get((fa, ccy_l))
         dst_key = _ACCT_MAP.get((ta, ccy_l))
         if not src_key or not dst_key:
-            return {"ok": False, "detail": "币种须为 USDT 或 USDC"}
+            return {"ok": False, "detail": "币种须为 USDT/USDC/ETH/BTC"}
         conn = self.get_db()
         try:
             row = conn.execute("SELECT * FROM sim_wallets WHERE id=1").fetchone()
-            snap = {k: float(row[k] or 0) for k in WALLET_KEYS}
+            snap = self._row_to_snap(row)
             src_bal = float(snap[src_key])
             if amt > src_bal + 1e-9:
-                return {"ok": False, "detail": f"余额不足(可用 {src_bal:.4f})"}
+                return {"ok": False, "detail": f"余额不足(可用 {src_bal:.8f})"}
             snap[src_key] = src_bal - amt
             snap[dst_key] = float(snap[dst_key]) + amt
             self._write(snap, conn=conn)
@@ -246,7 +275,7 @@ class SimWallets:
         fee: float | None = None,
         note: str | None = None,
     ) -> dict[str, Any]:
-        """USDT↔USDC 兑换. 默认交易账户; to_amount 未给时按 rate(USDT/USDC) 换算, 再否则 1:1."""
+        """USDT↔USDC / USDT↔ETH / USDT↔BTC 兑换. to_amount 未给时按 rate(USDT per coin) 换算."""
         amt = float(amount)
         if amt <= 0:
             return {"ok": False, "detail": "数量须大于 0"}
@@ -255,13 +284,14 @@ class SimWallets:
         acct = normalize_sim_account(account) or "trading"
         if acct not in ("funding", "trading"):
             return {"ok": False, "detail": "account 须为 funding / trading"}
-        if {fa, ta} != {"usdt", "usdc"}:
-            return {"ok": False, "detail": "仅支持 USDT↔USDC"}
+        pair = {fa, ta}
+        if pair not in ({"usdt", "usdc"}, {"usdt", "eth"}, {"usdt", "btc"}):
+            return {"ok": False, "detail": "仅支持 USDT↔USDC/ETH/BTC"}
         if to_amount is not None:
             got = float(to_amount)
         elif rate is not None and float(rate) > 0:
             r = float(rate)
-            # rate = USDT per 1 USDC
+            # rate = USDT per 1 coin(USDC/ETH/BTC)
             got = (amt / r) if fa == "usdt" else (amt * r)
         else:
             got = amt
@@ -272,10 +302,10 @@ class SimWallets:
         conn = self.get_db()
         try:
             row = conn.execute("SELECT * FROM sim_wallets WHERE id=1").fetchone()
-            snap = {k: float(row[k] or 0) for k in WALLET_KEYS}
+            snap = self._row_to_snap(row)
             src = float(snap[src_key])
             if amt > src + 1e-9:
-                return {"ok": False, "detail": f"{acct} {fa.upper()} 不足(可用 {src:.4f})"}
+                return {"ok": False, "detail": f"{acct} {fa.upper()} 不足(可用 {src:.8f})"}
             snap[src_key] = src - amt
             snap[dst_key] = float(snap[dst_key]) + got
             self._write(snap, conn=conn)
@@ -341,12 +371,15 @@ class SimWallets:
                 conn.execute("DELETE FROM sim_perp_positions")
                 conn.execute("DELETE FROM sim_option_positions")
                 conn.execute("DELETE FROM sim_option_orders")
-            now = self._now()
             snap = {
                 "funding_usdt": amt,
                 "trading_usdt": 0.0,
                 "funding_usdc": 0.0,
                 "trading_usdc": 0.0,
+                "funding_eth": 0.0,
+                "trading_eth": 0.0,
+                "funding_btc": 0.0,
+                "trading_btc": 0.0,
             }
             self._write(snap, conn=conn)
             self._ledger(
@@ -361,4 +394,4 @@ class SimWallets:
             conn.commit()
             return {"ok": True, "wallets": snap, "total_usdt_equiv": amt}
         finally:
-            conn.close()
+            conn.close()
\ No newline at end of file