diff --git a/crypto_monitor_okx/app.py b/crypto_monitor_okx/app.py
index 6de0ae9..1cf9f98 100644
--- a/crypto_monitor_okx/app.py
+++ b/crypto_monitor_okx/app.py
@@ -3167,7 +3167,8 @@ def _status_by_ema55(symbol, timeframe):
 
 def _daily_volume_rank(symbol):
     """
-    返回(symbol_rank, total_count)，按 quoteVolume 降序，缺失时 fallback 到 baseVolume*last。
+    返回(symbol_rank, total_count)：OKX USDT 永续 24h 成交额(USDT) 在全市场币种中的排名（非「本月」）。
+    同一 base 多合约取成交额最大的一条；不用 vol24h（张数）参与排序。
     """
     sym_norm = normalize_symbol_input(symbol)
     target_base = journal_coin_from_symbol(sym_norm)
@@ -3195,16 +3196,29 @@ def _daily_volume_rank(symbol):
                 tickers = exchange.fetch_tickers(params={"instType": "SWAP"})
             except Exception:
                 tickers = exchange.fetch_tickers()
-            scored = []
+            by_base: dict[str, float] = {}
             for s, t in (tickers or {}).items():
                 try:
-                    su = str(s).upper()
-                    if "USDT" not in su:
+                    mk = exchange.markets.get(s) if exchange.markets else None
+                    if mk is not None:
+                        if not mk.get("swap"):
+                            continue
+                        if str(mk.get("quote") or "").upper() != "USDT":
+                            continue
+                        if mk.get("active") is False:
+                            continue
+                    else:
+                        su = str(s).upper()
+                        if "USDT" not in su or ":USDT" not in su:
+                            continue
+                    base = _ticker_base(s)
+                    if not base:
                         continue
                     qv = _safe_float((t or {}).get("quoteVolume"))
                     if qv is None:
                         info = (t or {}).get("info") if isinstance((t or {}).get("info"), dict) else {}
-                        qv = _safe_float(info.get("volCcy24h") or info.get("vol24h"))
+                        # OKX：volCcy24h = 24h 成交额(USDT)；vol24h 多为张数，不能参与排名
+                        qv = _safe_float(info.get("volCcy24h"))
                     if qv is None:
                         bv = _safe_float((t or {}).get("baseVolume"))
                         lp = _safe_float((t or {}).get("last"))
@@ -3212,14 +3226,13 @@ def _daily_volume_rank(symbol):
                             qv = bv * lp
                     if qv is None or qv <= 0:
                         continue
-                    scored.append((_ticker_base(s), float(qv)))
+                    prev = by_base.get(base)
+                    if prev is None or float(qv) > prev:
+                        by_base[base] = float(qv)
                 except Exception:
                     continue
-            scored.sort(key=lambda x: x[1], reverse=True)
-            ranks = {}
-            for idx, (base, _) in enumerate(scored, 1):
-                if base and base not in ranks:
-                    ranks[base] = idx
+            scored = sorted(by_base.items(), key=lambda x: x[1], reverse=True)
+            ranks = {base: idx for idx, (base, _) in enumerate(scored, 1)}
             LIQUIDITY_RANK_CACHE["ranks"] = ranks
             LIQUIDITY_RANK_CACHE["total"] = len(scored)
             LIQUIDITY_RANK_CACHE["updated_at"] = now_ts
@@ -4900,14 +4913,26 @@ def api_symbol_liquidity_rank():
     if total <= 0:
         return jsonify({"ok": False, "msg": "日成交量排名读取失败"}), 502
     if rank is None:
-        return jsonify({"ok": True, "symbol": symbol, "rank": None, "total": int(total), "in_top30": False})
+        return jsonify(
+            {
+                "ok": True,
+                "symbol": symbol,
+                "rank": None,
+                "total": int(total),
+                "in_top30": False,
+                "rank_max": KEY_DAILY_VOLUME_RANK_MAX,
+            }
+        )
+    in_top = bool(rank <= KEY_DAILY_VOLUME_RANK_MAX)
     return jsonify(
         {
             "ok": True,
             "symbol": symbol,
             "rank": int(rank),
             "total": int(total),
-            "in_top30": bool(rank <= 30),
+            "in_top30": in_top,
+            "in_top": in_top,
+            "rank_max": KEY_DAILY_VOLUME_RANK_MAX,
         }
     )
 
diff --git a/crypto_monitor_okx/templates/index.html b/crypto_monitor_okx/templates/index.html
index 237fb59..e355c76 100644
--- a/crypto_monitor_okx/templates/index.html
+++ b/crypto_monitor_okx/templates/index.html
@@ -1459,8 +1459,9 @@ if(keyForm){
                     return;
                 }
                 const rankMax = data.rank_max || 30;
-                if(!data.in_top30){
-                    alert(`${data.symbol} 当前日成交量排名 ${data.rank}/${data.total}，不在前${rankMax}，已拦截。`);
+                const inTop = data.in_top != null ? data.in_top : data.in_top30;
+                if(data.rank == null || !inTop){
+                    alert(`${data.symbol} 当前日成交量排名 ${data.rank == null ? "—" : data.rank}/${data.total}，不在前${rankMax}，已拦截。`);
                     return;
                 }
                 keyForm.submit();