diff --git a/docs/更新说明.md b/docs/更新说明.md
index ea74477..e95ad08 100644
--- a/docs/更新说明.md
+++ b/docs/更新说明.md
@@ -5,6 +5,15 @@
 
 ---
 
+## 2026-07-27 — 交易记录详情改为弹窗
+
+### 变更
+
+1. 点击成交组弹出对话框查看开平仓时间、持仓周期、成交明细与盈亏。  
+2. 支持点遮罩 / 关闭按钮 / Esc 关闭；手机端底部抽屉式布局。
+
+---
+
 ## 2026-07-27 — 修复交易记录 500（记录未丢）
 
 ### 变更
diff --git a/frontend/src/pages/Trades.tsx b/frontend/src/pages/Trades.tsx
index 7e8fade..f475524 100644
--- a/frontend/src/pages/Trades.tsx
+++ b/frontend/src/pages/Trades.tsx
@@ -1,4 +1,4 @@
-import { useEffect, useState } from "react";
+import { useEffect, useId, useState } from "react";
 import { apiFetch } from "../api/client";
 import {
   closeReasonZh,
@@ -82,11 +82,14 @@ function fmtHold(ms: number | null | undefined) {
 }
 
 export default function TradesPage() {
+  const titleId = useId();
   const [groups, setGroups] = useState<Group[]>([]);
   const [selected, setSelected] = useState<string | null>(null);
   const [selectedGroup, setSelectedGroup] = useState<Group | null>(null);
   const [fills, setFills] = useState<Fill[]>([]);
   const [summary, setSummary] = useState<PnlSummary | null>(null);
+  const [detailLoading, setDetailLoading] = useState(false);
+  const [detailErr, setDetailErr] = useState("");
   const [err, setErr] = useState("");
 
   useEffect(() => {
@@ -95,10 +98,36 @@ export default function TradesPage() {
       .catch((e) => setErr(e instanceof Error ? e.message : String(e)));
   }, []);
 
+  useEffect(() => {
+    if (!selected) return;
+    const onKey = (ev: KeyboardEvent) => {
+      if (ev.key === "Escape") closeDetail();
+    };
+    window.addEventListener("keydown", onKey);
+    const prev = document.body.style.overflow;
+    document.body.style.overflow = "hidden";
+    return () => {
+      window.removeEventListener("keydown", onKey);
+      document.body.style.overflow = prev;
+    };
+  }, [selected]);
+
+  function closeDetail() {
+    setSelected(null);
+    setSelectedGroup(null);
+    setFills([]);
+    setSummary(null);
+    setDetailErr("");
+    setDetailLoading(false);
+  }
+
   async function openGroup(id: string) {
     setSelected(id);
     setSummary(null);
     setSelectedGroup(null);
+    setFills([]);
+    setDetailErr("");
+    setDetailLoading(true);
     try {
       const r = await apiFetch<{
         group: Group;
@@ -109,7 +138,9 @@ export default function TradesPage() {
       setSummary(r.pnl_summary);
       setSelectedGroup(r.group);
     } catch (e) {
-      setErr(e instanceof Error ? e.message : String(e));
+      setDetailErr(e instanceof Error ? e.message : String(e));
+    } finally {
+      setDetailLoading(false);
     }
   }
 
@@ -117,7 +148,7 @@ export default function TradesPage() {
     <div className="trades-page">
       <h2 style={{ marginTop: 0 }}>交易记录</h2>
       <p className="trade-hold-note">
-        持仓周期按目标平仓计时；净盈利达标且只平永续时，以永续平仓时间为准（不含期权残留至到期）。
+        持仓周期按目标平仓计时；净盈利达标且只平永续时，以永续平仓时间为准（不含期权残留至到期）。点击一条可查看明细。
       </p>
       {err ? <div className="err">{err}</div> : null}
       <div className="card trade-list" style={{ marginBottom: 12 }}>
@@ -160,83 +191,139 @@ export default function TradesPage() {
           })
         )}
       </div>
+
       {selected ? (
-        <div className="card trade-detail">
-          <h3 style={{ marginTop: 0 }}>{selected} 成交明细</h3>
-          {selectedGroup ? (
-            <div className="trade-hold-summary">
-              <div className="kv">
-                <span>开仓时间</span>
-                <span className="mono">
-                  {fmtTime(selectedGroup.hold_open_at_ms ?? selectedGroup.open_at_ms)}
-                </span>
-              </div>
-              <div className="kv">
-                <span>平仓时间</span>
-                <span className="mono">
-                  {fmtTime(
-                    selectedGroup.hold_close_at_ms ?? selectedGroup.close_at_ms,
-                  )}
-                  {selectedGroup.hold_basis === "perp" ? (
-                    <span className="trade-hold-basis">（永续）</span>
+        <div
+          className="modal-backdrop"
+          role="presentation"
+          onClick={closeDetail}
+        >
+          <div
+            className="modal-dialog trade-detail-modal"
+            role="dialog"
+            aria-modal="true"
+            aria-labelledby={titleId}
+            onClick={(ev) => ev.stopPropagation()}
+          >
+            <div className="modal-head">
+              <h3 id={titleId} className="modal-title mono">
+                {selected}
+              </h3>
+              <button
+                type="button"
+                className="btn ghost modal-close"
+                onClick={closeDetail}
+                aria-label="关闭"
+              >
+                关闭
+              </button>
+            </div>
+
+            <div className="modal-body">
+              {detailLoading ? (
+                <p className="meta">加载明细…</p>
+              ) : null}
+              {detailErr ? <div className="err">{detailErr}</div> : null}
+
+              {!detailLoading && !detailErr && selectedGroup ? (
+                <>
+                  <div className="trade-hold-summary">
+                    <div className="kv">
+                      <span>状态</span>
+                      <span className="mono">
+                        {statusZh(selectedGroup.status)}
+                        {selectedGroup.close_reason
+                          ? ` · ${closeReasonZh(selectedGroup.close_reason)}`
+                          : ""}
+                      </span>
+                    </div>
+                    <div className="kv">
+                      <span>方向</span>
+                      <span className="mono">
+                        {positionSidesZh(
+                          selectedGroup.perp_side,
+                          selectedGroup.option_side,
+                        )}
+                      </span>
+                    </div>
+                    <div className="kv">
+                      <span>开仓时间</span>
+                      <span className="mono">
+                        {fmtTime(
+                          selectedGroup.hold_open_at_ms ??
+                            selectedGroup.open_at_ms,
+                        )}
+                      </span>
+                    </div>
+                    <div className="kv">
+                      <span>平仓时间</span>
+                      <span className="mono">
+                        {fmtTime(
+                          selectedGroup.hold_close_at_ms ??
+                            selectedGroup.close_at_ms,
+                        )}
+                        {selectedGroup.hold_basis === "perp" ? (
+                          <span className="trade-hold-basis">（永续）</span>
+                        ) : null}
+                      </span>
+                    </div>
+                    <div className="kv">
+                      <span>持仓周期</span>
+                      <span className="mono">
+                        {fmtHold(selectedGroup.hold_ms)}
+                      </span>
+                    </div>
+                  </div>
+
+                  <p className="trade-detail-hint">
+                    成交价为成交均价（未预先扣费）；手续费单独列出。净盈亏 = 期权盈亏 +
+                    永续盈亏 − 全部手续费。
+                  </p>
+
+                  {fills.map((f) => (
+                    <div key={f.id} className="trade-fill kv">
+                      <span className="mono">
+                        {fillDescZh(f.leg, f.action, f.side)}
+                      </span>
+                      <span className="mono">
+                        价 {f.fill_px.toFixed(4)} · 数量 {f.qty_eth} · 手续费{" "}
+                        {f.fee.toFixed(4)}
+                      </span>
+                    </div>
+                  ))}
+
+                  {summary ? (
+                    <div className="trade-pnl-block">
+                      <div className="kv">
+                        <span>期权盈亏</span>
+                        <span className={`mono ${pnlClass(summary.option_pnl)}`}>
+                          {fmt(summary.option_pnl)}
+                        </span>
+                      </div>
+                      <div className="kv">
+                        <span>永续盈亏</span>
+                        <span className={`mono ${pnlClass(summary.perp_pnl)}`}>
+                          {fmt(summary.perp_pnl)}
+                        </span>
+                      </div>
+                      <div className="kv">
+                        <span>手续费合计</span>
+                        <span className="mono">{fmt(summary.fees_total, 4)}</span>
+                      </div>
+                      <div className="kv">
+                        <span>
+                          <strong>净盈亏（扣费后）</strong>
+                        </span>
+                        <span className={`mono ${pnlClass(summary.net_pnl)}`}>
+                          <strong>{fmt(summary.net_pnl)}</strong>
+                        </span>
+                      </div>
+                    </div>
                   ) : null}
-                </span>
-              </div>
-              <div className="kv">
-                <span>持仓周期</span>
-                <span className="mono">{fmtHold(selectedGroup.hold_ms)}</span>
-              </div>
+                </>
+              ) : null}
             </div>
-          ) : null}
-          <p style={{ color: "var(--muted)", fontSize: 13, marginTop: 0 }}>
-            成交价为成交均价（未预先扣费）；手续费单独列出。净盈亏 = 期权盈亏 + 永续盈亏 −
-            全部手续费。
-          </p>
-          {fills.map((f) => (
-            <div key={f.id} className="trade-fill kv">
-              <span className="mono">
-                {fillDescZh(f.leg, f.action, f.side)}
-              </span>
-              <span className="mono">
-                价 {f.fill_px.toFixed(4)} · 数量 {f.qty_eth} · 手续费{" "}
-                {f.fee.toFixed(4)}
-              </span>
-            </div>
-          ))}
-          {summary ? (
-            <div
-              style={{
-                marginTop: 14,
-                paddingTop: 12,
-                borderTop: "1px solid var(--border, #333)",
-              }}
-            >
-              <div className="kv">
-                <span>期权盈亏</span>
-                <span className={`mono ${pnlClass(summary.option_pnl)}`}>
-                  {fmt(summary.option_pnl)}
-                </span>
-              </div>
-              <div className="kv">
-                <span>永续盈亏</span>
-                <span className={`mono ${pnlClass(summary.perp_pnl)}`}>
-                  {fmt(summary.perp_pnl)}
-                </span>
-              </div>
-              <div className="kv">
-                <span>手续费合计</span>
-                <span className="mono">{fmt(summary.fees_total, 4)}</span>
-              </div>
-              <div className="kv">
-                <span>
-                  <strong>净盈亏（扣费后）</strong>
-                </span>
-                <span className={`mono ${pnlClass(summary.net_pnl)}`}>
-                  <strong>{fmt(summary.net_pnl)}</strong>
-                </span>
-              </div>
-            </div>
-          ) : null}
+          </div>
         </div>
       ) : null}
     </div>
diff --git a/frontend/src/styles/app.css b/frontend/src/styles/app.css
index e277abf..2d78a74 100644
--- a/frontend/src/styles/app.css
+++ b/frontend/src/styles/app.css
@@ -584,6 +584,96 @@ input {
   font-size: 12px;
 }
 
+.trade-detail-hint {
+  color: var(--muted);
+  font-size: 13px;
+  margin: 0 0 12px;
+  line-height: 1.45;
+}
+
+.trade-pnl-block {
+  margin-top: 14px;
+  padding-top: 12px;
+  border-top: 1px solid var(--line);
+}
+
+.modal-backdrop {
+  position: fixed;
+  inset: 0;
+  z-index: 80;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 16px;
+  padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
+  background: rgba(0, 0, 0, 0.62);
+  backdrop-filter: blur(4px);
+}
+
+.modal-dialog {
+  width: min(560px, 100%);
+  max-height: min(86vh, 820px);
+  display: flex;
+  flex-direction: column;
+  background: var(--bg-elev);
+  border: 1px solid var(--line);
+  border-radius: 12px;
+  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
+  overflow: hidden;
+}
+
+.modal-head {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 12px;
+  padding: 14px 16px;
+  border-bottom: 1px solid var(--line);
+  flex: 0 0 auto;
+}
+
+.modal-title {
+  margin: 0;
+  font-size: 16px;
+  font-weight: 700;
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.modal-close {
+  flex: 0 0 auto;
+  min-height: 40px;
+}
+
+.modal-body {
+  padding: 14px 16px 18px;
+  overflow: auto;
+  -webkit-overflow-scrolling: touch;
+}
+
+@media (max-width: 900px) {
+  .modal-backdrop {
+    align-items: flex-end;
+    padding: 0;
+  }
+
+  .modal-dialog {
+    width: 100%;
+    max-height: min(88vh, 900px);
+    border-radius: 14px 14px 0 0;
+  }
+
+  .modal-head {
+    padding: 12px 14px;
+  }
+
+  .modal-body {
+    padding: 12px 14px calc(18px + env(safe-area-inset-bottom, 0px));
+  }
+}
+
 .trade-row-pnl {
   display: flex;
   flex-direction: column;