diff --git a/lib/common/static/instance_theme.css b/lib/common/static/instance_theme.css
index 4eeb5be..623623b 100644
--- a/lib/common/static/instance_theme.css
+++ b/lib/common/static/instance_theme.css
@@ -3213,6 +3213,29 @@ html[data-theme="light"] .options-estimate-row {
   font-size: 0.78rem;
   color: #b8c0dc;
 }
+.options-pos-live-layout {
+  display: flex;
+  flex-direction: column;
+  min-height: 0;
+  flex: 1;
+}
+.opt-pos-expanded-host {
+  flex-shrink: 0;
+  margin-top: 8px;
+  overflow: visible;
+}
+.opt-pos-expanded-host .opt-pos-card {
+  margin-bottom: 0;
+}
+.options-pos-live-pane--bars-only {
+  flex: 1;
+  min-height: 72px;
+  max-height: 140px;
+  overflow-y: auto;
+}
+.options-pos-subcard .options-pos-live-layout {
+  min-height: 0;
+}
 .options-pos-live-pane {
   flex: 1;
   min-height: 100px;
@@ -3284,8 +3307,7 @@ html[data-theme="light"] .options-estimate-row {
   background: #171d2a;
 }
 .opt-pos-accordion-item.is-expanded .opt-pos-bar {
-  border-radius: 8px 8px 0 0;
-  border-bottom-color: transparent;
+  border-color: #4a6fd8;
   background: #171d2a;
 }
 .opt-pos-bar-main {
@@ -3337,19 +3359,6 @@ html[data-theme="light"] .options-estimate-row {
 .opt-pos-accordion-item.is-expanded .opt-pos-bar-chevron {
   transform: rotate(90deg);
 }
-.opt-pos-accordion-body {
-  border: 1px solid #2a3348;
-  border-top: none;
-  border-radius: 0 0 8px 8px;
-  overflow: hidden;
-  background: #141923;
-}
-.opt-pos-card--nested {
-  margin-bottom: 0 !important;
-  border: none !important;
-  border-radius: 0 !important;
-  background: transparent !important;
-}
 .options-page-wrap .opt-pos-card .pos-card-symbol strong {
   font-size: 0.78rem;
 }
diff --git a/lib/common/static/options_panel.js b/lib/common/static/options_panel.js
index a8cf35b..524af2c 100644
--- a/lib/common/static/options_panel.js
+++ b/lib/common/static/options_panel.js
@@ -457,7 +457,7 @@
       '<div class="pos-cell"><span class="pos-label">平掉回本</span><span class="pos-value">' + fmt(p.close_be_px, 0) + "</span></div>" +
       '<div class="pos-cell"><span class="pos-label">浮盈亏</span><span class="pos-value ' + uplCls + '">' + fmt(p.upl, 2) + "</span></div>" +
       '<div class="pos-cell"><span class="pos-label">收益率</span><span class="pos-value ' + uplCls + '">' +
-      (p.upl_ratio_pct != null ? p.upl_ratio_pct + "%" : "—") + "</span></div>" +
+      (p.upl_ratio_pct != null ? fmt(p.upl_ratio_pct, 2) + "%" : "—") + "</span></div>" +
       "</div>"
     );
   }
@@ -470,7 +470,7 @@
     );
   }
 
-  function renderPositionAccordionItem(p, expanded) {
+  function renderPositionBar(p, expanded) {
     const upl = p.upl;
     const uplCls = upl > 0 ? "pos-pnl-profit" : upl < 0 ? "pos-pnl-loss" : "";
     const sideCls = (p.opt_type || "").toUpperCase() === "P" ? "pos-side-short" : "pos-side-long";
@@ -492,17 +492,51 @@
         : "") +
       '<span class="opt-pos-bar-pnl ' + uplCls + '">' + fmt(p.upl, 2) + " USDC</span>" +
       '<span class="opt-pos-bar-roi ' + uplCls + '">' +
-      (p.upl_ratio_pct != null ? p.upl_ratio_pct + "%" : "—") + "</span>" +
+      (p.upl_ratio_pct != null ? fmt(p.upl_ratio_pct, 2) + "%" : "—") + "</span>" +
       "</span>" +
-      "</button>" +
-      '<div class="opt-pos-accordion-body"' + (expanded ? "" : ' hidden') + ">" +
-      '<div class="pos-card opt-pos-card opt-pos-card--nested" data-inst="' + inst + '">' +
-      renderPositionCardInner(p) +
-      "</div></div></div>"
+      "</button></div>"
     );
   }
 
-  function bindPositionActions(container) {
+  function renderExpandedPositionCard(p) {
+    return renderPositionCard(p);
+  }
+
+  function applyAccordionState(list) {
+    const wrap = document.getElementById("opt-pos-cards");
+    const expandedHost = document.getElementById("opt-pos-expanded-host");
+    const livePane = document.getElementById("opt-pos-live");
+    if (!wrap) return;
+    const expanded = (list || []).find(function (p) { return p.inst_id === state.expandedPosInst; }) || null;
+    wrap.querySelectorAll(".opt-pos-accordion-item").forEach(function (el) {
+      const open = el.getAttribute("data-inst") === state.expandedPosInst;
+      el.classList.toggle("is-expanded", open);
+      const btn = el.querySelector(".opt-pos-bar");
+      if (btn) btn.setAttribute("aria-expanded", open ? "true" : "false");
+    });
+    if (expandedHost) {
+      if (expanded) {
+        expandedHost.hidden = false;
+        expandedHost.setAttribute("aria-hidden", "false");
+        expandedHost.innerHTML = renderExpandedPositionCard(expanded);
+        expandedHost.querySelectorAll(".opt-close-btn").forEach(function (btn) {
+          btn.addEventListener("click", function (e) {
+            e.stopPropagation();
+            closePosition(btn.getAttribute("data-inst"), btn);
+          });
+        });
+      } else {
+        expandedHost.hidden = true;
+        expandedHost.setAttribute("aria-hidden", "true");
+        expandedHost.innerHTML = "";
+      }
+    }
+    if (livePane) {
+      livePane.classList.toggle("options-pos-live-pane--bars-only", !!(list && list.length >= 2));
+    }
+  }
+
+  function bindPositionActions(container, list) {
     if (!container) return;
     container.querySelectorAll(".opt-close-btn").forEach(function (btn) {
       btn.addEventListener("click", function (e) {
@@ -516,15 +550,10 @@
         if (!item) return;
         const inst = item.getAttribute("data-inst");
         state.expandedPosInst = state.expandedPosInst === inst ? null : inst;
-        const wrap = document.getElementById("opt-pos-cards");
-        wrap.querySelectorAll(".opt-pos-accordion-item").forEach(function (el) {
-          const open = el.getAttribute("data-inst") === state.expandedPosInst;
-          el.classList.toggle("is-expanded", open);
-          const body = el.querySelector(".opt-pos-accordion-body");
-          const btn = el.querySelector(".opt-pos-bar");
-          if (body) body.hidden = !open;
-          if (btn) btn.setAttribute("aria-expanded", open ? "true" : "false");
-        });
+        applyAccordionState(list);
+        if (window.OptionsExpiryCountdown && OptionsExpiryCountdown.ensureTimer) {
+          OptionsExpiryCountdown.ensureTimer();
+        }
       });
     });
   }
@@ -564,10 +593,19 @@
     const d = await apiJson("/api/options/positions");
     const wrap = document.getElementById("opt-pos-cards");
     const empty = document.getElementById("opt-pos-empty");
+    const expandedHost = document.getElementById("opt-pos-expanded-host");
+    const livePane = document.getElementById("opt-pos-live");
     const list = (d.ok && d.positions) || [];
     wrap.innerHTML = "";
+    if (expandedHost) {
+      expandedHost.hidden = true;
+      expandedHost.setAttribute("aria-hidden", "true");
+      expandedHost.innerHTML = "";
+    }
     if (!list.length) {
       empty.style.display = "";
+      state.expandedPosInst = null;
+      if (livePane) livePane.classList.remove("options-pos-live-pane--bars-only");
       return;
     }
     empty.style.display = "none";
@@ -575,23 +613,26 @@
     wrap.classList.toggle("opt-pos-cards--accordion", multi);
     if (multi) {
       const ids = list.map(function (p) { return p.inst_id; });
-      if (!state.expandedPosInst || ids.indexOf(state.expandedPosInst) < 0) {
-        state.expandedPosInst = list[0].inst_id || null;
+      if (state.expandedPosInst && ids.indexOf(state.expandedPosInst) < 0) {
+        state.expandedPosInst = null;
       }
       list.forEach(function (p) {
         const div = document.createElement("div");
-        div.innerHTML = renderPositionAccordionItem(p, p.inst_id === state.expandedPosInst);
+        div.innerHTML = renderPositionBar(p, p.inst_id === state.expandedPosInst);
         wrap.appendChild(div.firstChild);
       });
+      applyAccordionState(list);
+      bindPositionActions(wrap, list);
     } else {
       state.expandedPosInst = null;
+      if (livePane) livePane.classList.remove("options-pos-live-pane--bars-only");
       list.forEach(function (p) {
         const div = document.createElement("div");
         div.innerHTML = renderPositionCard(p);
         wrap.appendChild(div.firstChild);
       });
+      bindPositionActions(wrap, list);
     }
-    bindPositionActions(wrap);
     if (window.OptionsExpiryCountdown && OptionsExpiryCountdown.ensureTimer) {
       OptionsExpiryCountdown.ensureTimer();
     }
@@ -617,11 +658,11 @@
     if (closedEl) closedEl.textContent = String(d.total_closed || 0);
     if (profitEl) {
       profitEl.textContent = d.total_profit != null && d.total_profit > 0
-        ? fmt(d.total_profit, 4) + " USDC" : (d.total_closed ? "0 USDC" : "—");
+        ? fmt(d.total_profit, 2) + " USDC" : (d.total_closed ? "0 USDC" : "—");
     }
     if (lossEl) {
       lossEl.textContent = d.total_loss != null && d.total_loss > 0
-        ? fmt(d.total_loss, 4) + " USDC" : (d.total_closed ? "0 USDC" : "—");
+        ? fmt(d.total_loss, 2) + " USDC" : (d.total_closed ? "0 USDC" : "—");
     }
   }
 
@@ -660,7 +701,7 @@
       const tr = document.createElement("tr");
       const prem = h.status === "closed" ? h.premium_received : h.premium_paid;
       const pnl = h.realized_pnl;
-      const pnlTxt = pnl != null ? fmt(pnl, 4) : "—";
+      const pnlTxt = pnl != null ? fmt(pnl, 2) : "—";
       const pnlCls = pnl > 0 ? "pos-pnl-profit" : pnl < 0 ? "pos-pnl-loss" : "";
       tr.innerHTML =
         "<td><code>" + (h.inst_id || "") + "</code></td>" +
diff --git a/lib/options/templates/options_panel.html b/lib/options/templates/options_panel.html
index f0bb0c3..b56fb4f 100644
--- a/lib/options/templates/options_panel.html
+++ b/lib/options/templates/options_panel.html
@@ -81,9 +81,12 @@
             <div class="options-pos-stack">
                 <div class="card-nested options-pos-subcard">
                     <h3>当前持仓</h3>
-                    <div id="opt-pos-live" class="panel-scroll pos-list options-pos-live-pane">
-                        <div class="pos-empty" id="opt-pos-empty">暂无持仓</div>
-                        <div id="opt-pos-cards"></div>
+                    <div class="options-pos-live-layout">
+                        <div id="opt-pos-live" class="panel-scroll pos-list options-pos-live-pane">
+                            <div class="pos-empty" id="opt-pos-empty">暂无持仓</div>
+                            <div id="opt-pos-cards"></div>
+                        </div>
+                        <div id="opt-pos-expanded-host" class="opt-pos-expanded-host" hidden aria-hidden="true"></div>
                     </div>
                 </div>
                 <div class="card-nested options-pos-subcard options-pos-stats-card">