diff --git a/lib/common/static/instance_theme.css b/lib/common/static/instance_theme.css
index 1bd99fc..c12885b 100644
--- a/lib/common/static/instance_theme.css
+++ b/lib/common/static/instance_theme.css
@@ -3919,13 +3919,33 @@ html[data-theme="light"] .options-strike-table--t .opt-strike-row-atm td {
   background: rgba(255, 152, 0, 0.08);
 }
 .opt-order-inline-row td {
-  padding: 14px 16px !important;
-  background: rgba(74, 124, 255, 0.07);
-  border-top: 1px solid rgba(74, 124, 255, 0.25);
-  border-bottom: 1px solid rgba(74, 124, 255, 0.25);
+  padding: 0 !important;
+  border: none !important;
+  background: transparent !important;
 }
-.opt-order-panel-inner {
-  border-radius: 8px;
+.opt-order-backdrop {
+  position: fixed;
+  inset: 0;
+  z-index: 2100;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 16px;
+  background: rgba(0, 0, 0, 0.72);
+}
+.opt-order-backdrop[hidden] {
+  display: none !important;
+}
+.opt-order-dialog {
+  width: min(96vw, 720px);
+  max-height: 92vh;
+  overflow: auto;
+  background: var(--card-bg, #121726);
+  color: inherit;
+  border: 1px solid rgba(127, 127, 127, 0.35);
+  border-radius: 12px;
+  padding: 14px 16px 16px;
+  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
 }
 .opt-order-layout {
   display: block;
@@ -4005,54 +4025,6 @@ html[data-theme="light"] .options-strike-table--t .opt-strike-row-atm td {
   font-size: 0.68rem;
   padding: 2px 8px;
 }
-.opt-eth-order-backdrop {
-  position: fixed;
-  inset: 0;
-  z-index: 2100;
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  padding: 16px;
-  background: rgba(0, 0, 0, 0.72);
-}
-.opt-eth-order-backdrop[hidden] {
-  display: none !important;
-}
-.opt-eth-order-dialog {
-  width: min(92vw, 420px);
-  background: var(--card-bg, #121726);
-  color: inherit;
-  border: 1px solid rgba(127, 127, 127, 0.35);
-  border-radius: 12px;
-  padding: 16px 18px 18px;
-  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
-}
-.opt-eth-order-dialog h3 {
-  margin: 0 0 8px;
-  font-size: 0.95rem;
-}
-.opt-eth-order-label {
-  display: block;
-  font-size: 0.76rem;
-  margin-bottom: 6px;
-  opacity: 0.85;
-}
-.opt-eth-order-dialog input[type="number"] {
-  width: 100%;
-  box-sizing: border-box;
-  font-size: 0.9rem;
-  padding: 8px 10px;
-  border-radius: 8px;
-}
-.opt-eth-order-actions {
-  display: flex;
-  flex-wrap: wrap;
-  gap: 8px;
-}
-.opt-eth-order-actions .btn-primary,
-.opt-eth-order-actions .btn-secondary {
-  flex: 1 1 140px;
-}
 html[data-theme="light"] .opt-pending-item {
   background: #fff;
   border-color: rgba(0, 0, 0, 0.08);
@@ -4062,19 +4034,28 @@ html[data-theme="light"] .opt-pending-item {
     max-height: min(46vh, 360px);
   }
 }
-.opt-order-panel-inner .opt-order-title {
-  margin: 0 0 8px;
-  font-size: 0.85rem;
+.opt-order-dialog-head {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  margin-bottom: 10px;
+}
+.opt-order-dialog-head .opt-order-title {
+  margin: 0;
+  margin-right: auto;
+  font-size: 0.95rem;
   color: #9ec0ff;
+  font-weight: 650;
 }
-.options-page-wrap .opt-order-panel-inner .opt-order-title {
-  font-size: 0.82rem;
+.opt-order-dialog-actions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  margin-top: 10px;
 }
-.opt-order-panel-host:not([hidden]) {
-  display: block;
-}
-.opt-order-panel-host[hidden] {
-  display: none !important;
+.opt-order-dialog-actions .btn-primary,
+.opt-order-dialog-actions .btn-secondary {
+  flex: 1 1 140px;
 }
 .options-order-grid {
   display: grid;
diff --git a/lib/common/static/options_panel.js b/lib/common/static/options_panel.js
index 00cd13b..d9cfbfe 100644
--- a/lib/common/static/options_panel.js
+++ b/lib/common/static/options_panel.js
@@ -91,16 +91,17 @@
   }
 
   function parkOrderPanel() {
-    stopPendingOrdersPoll();
     const panel = orderPanel();
     const host = orderPanelHost();
-    // 把整块 host(含面板)移回原位,再删行内 tr,避免 tbody 重绘销毁下单 DOM
-    if (host && orderPanelHome && host.parentElement !== orderPanelHome) {
-      orderPanelHome.appendChild(host);
-    } else if (panel && host && panel.parentElement !== host) {
-      host.appendChild(panel);
+    // 弹窗挂到 body;关闭后收回原位,绝不插入期权链表格
+    if (panel && host && panel.parentElement !== host) host.appendChild(panel);
+    if (host) {
+      host.hidden = true;
+      host.setAttribute("aria-hidden", "true");
+      if (orderPanelHome && host.parentElement !== orderPanelHome) {
+        orderPanelHome.appendChild(host);
+      }
     }
-    if (host) host.hidden = true;
     if (panel) panel.style.display = "none";
     const inline = document.querySelector(".opt-order-inline-row");
     if (inline) inline.remove();
@@ -121,32 +122,27 @@
       document.querySelector('#opt-strike-tbody tr.opt-strike-row[data-inst="' + CSS.escape(instId) + '"]') ||
       document.querySelector('#opt-strike-tbody tr.opt-strike-row[data-call-inst="' + CSS.escape(instId) + '"]') ||
       document.querySelector('#opt-strike-tbody tr.opt-strike-row[data-put-inst="' + CSS.escape(instId) + '"]');
-    if (!row) {
-      syncPickButtons(null);
-      return false;
-    }
     document.querySelectorAll(".opt-strike-row").forEach(function (r) {
-      r.classList.toggle("opt-row-selected", r === row);
+      r.classList.toggle("opt-row-selected", !!row && r === row);
     });
     syncPickButtons(instId);
     const oldInline = document.querySelector(".opt-order-inline-row");
     if (oldInline) oldInline.remove();
     if (panel.parentElement !== host) host.appendChild(panel);
-    const tr = document.createElement("tr");
-    tr.className = "opt-order-inline-row";
-    const td = document.createElement("td");
-    td.colSpan = strikeTableColspan();
-    td.appendChild(host);
-    tr.appendChild(td);
-    row.after(tr);
+    // 挂到 body,避免被卡片 overflow 裁成「行内展开」
+    if (host.parentElement !== document.body) document.body.appendChild(host);
     host.hidden = false;
+    host.setAttribute("aria-hidden", "false");
     panel.style.display = "";
-    tr.scrollIntoView({ behavior: "smooth", block: "nearest" });
-    refreshPendingOrders();
-    startPendingOrdersPoll();
     return true;
   }
 
+  function closeOrderDialog() {
+    state.selectedInst = null;
+    state.orderQuote = null;
+    parkOrderPanel();
+  }
+
   function fmtPendingAge(sec) {
     if (sec == null || Number.isNaN(Number(sec))) return "—";
     let s = Math.max(0, Math.round(Number(sec)));
@@ -276,14 +272,15 @@
   function updateSizeInputs() {
     const mode = currentSizeMode();
     const sheetsEl = document.getElementById("opt-sheets-amount");
+    const ethEl = document.getElementById("opt-eth-amount");
     if (sheetsEl) sheetsEl.style.display = mode === "sheets" ? "" : "none";
+    if (ethEl) ethEl.style.display = mode === "eth_amount" ? "" : "none";
   }
 
   function hardenOrderAutofill() {
     const note = document.getElementById("opt-signal-note");
     if (!note) return;
     function wipeNote() {
-      // 浏览器常把用户名(dekun)填进备注框
       if (/^[a-z][a-z0-9._-]{1,31}$/i.test(String(note.value || "").trim())) {
         note.value = "";
       }
@@ -299,123 +296,6 @@
     setTimeout(wipeNote, 800);
   }
 
-  function hideEthOrderDialog() {
-    const bd = document.getElementById("opt-eth-order-backdrop");
-    if (bd) bd.hidden = true;
-  }
-
-  function openEthOrderDialog() {
-    if (!state.selectedInst) {
-      alert("请先选择合约");
-      const sheetsRadio = document.querySelector('input[name="opt-size-mode"][value="sheets"]');
-      if (sheetsRadio) {
-        sheetsRadio.checked = true;
-        updateSizeInputs();
-      }
-      return;
-    }
-    const bd = document.getElementById("opt-eth-order-backdrop");
-    const instEl = document.getElementById("opt-eth-order-inst");
-    const amountEl = document.getElementById("opt-eth-order-amount");
-    const preview = document.getElementById("opt-eth-order-preview");
-    const msg = document.getElementById("opt-eth-order-msg");
-    if (instEl) instEl.textContent = state.selectedInst;
-    if (amountEl) {
-      amountEl.value = document.getElementById("opt-eth-amount").value || "";
-      amountEl.focus();
-    }
-    if (preview) preview.textContent = "输入币数量后显示张数与权利金估算";
-    if (msg) {
-      msg.textContent = "";
-      msg.classList.remove("opt-error");
-    }
-    if (bd) bd.hidden = false;
-    refreshEthOrderPreview();
-  }
-
-  async function refreshEthOrderPreview() {
-    const preview = document.getElementById("opt-eth-order-preview");
-    const amountEl = document.getElementById("opt-eth-order-amount");
-    if (!preview || !amountEl || !state.selectedInst) return;
-    const eth = parseFloat(amountEl.value);
-    if (!Number.isFinite(eth) || eth <= 0) {
-      preview.textContent = "输入币数量后显示张数与权利金估算";
-      return;
-    }
-    preview.textContent = "估算中…";
-    try {
-      const url =
-        "/api/options/quote?inst_id=" +
-        encodeURIComponent(state.selectedInst) +
-        "&mode=eth_amount&eth_amount=" +
-        encodeURIComponent(String(eth));
-      const d = await apiJson(url);
-      if (!d || !d.ok) {
-        preview.textContent = (d && d.msg) || "报价失败";
-        return;
-      }
-      const sz = d.sizing || {};
-      if (sz.ok === false) {
-        preview.textContent = sz.msg || "张数无效";
-        return;
-      }
-      const sheets = sz.sheets != null ? sz.sheets : "—";
-      const prem = sz.total_premium != null ? sz.total_premium : null;
-      const premTxt = prem != null ? fmt(prem, 2) + " USDC" : "—";
-      preview.textContent = "约 " + sheets + " 张 · 预估权利金 " + premTxt;
-    } catch (e) {
-      preview.textContent = "报价失败";
-    }
-  }
-
-  async function submitEthOrderDialog() {
-    const amountEl = document.getElementById("opt-eth-order-amount");
-    const msg = document.getElementById("opt-eth-order-msg");
-    const submitBtn = document.getElementById("opt-eth-order-submit");
-    const eth = amountEl ? parseFloat(amountEl.value) : NaN;
-    if (!Number.isFinite(eth) || eth <= 0) {
-      if (msg) {
-        msg.textContent = "请输入有效币数量";
-        msg.classList.add("opt-error");
-      }
-      return;
-    }
-    const hidden = document.getElementById("opt-eth-amount");
-    if (hidden) hidden.value = String(eth);
-    const ethRadio = document.querySelector('input[name="opt-size-mode"][value="eth_amount"]');
-    if (ethRadio) ethRadio.checked = true;
-    updateSizeInputs();
-    if (submitBtn) submitBtn.disabled = true;
-    try {
-      if (state.selectedInst) {
-        await selectContract(state.selectedInst, null, true);
-      }
-      const ok = await openPosition();
-      if (ok) {
-        hideEthOrderDialog();
-        setOptionsPosTab("pending");
-      } else if (msg) {
-        const orderMsg = document.getElementById("opt-order-msg");
-        msg.textContent = (orderMsg && orderMsg.textContent) || "下单失败";
-        msg.classList.add("opt-error");
-      }
-    } finally {
-      if (submitBtn) submitBtn.disabled = false;
-    }
-  }
-
-  function cancelEthOrderDialog() {
-    hideEthOrderDialog();
-    const sheetsRadio = document.querySelector('input[name="opt-size-mode"][value="sheets"]');
-    if (sheetsRadio) {
-      sheetsRadio.checked = true;
-      updateSizeInputs();
-    }
-    const hidden = document.getElementById("opt-eth-amount");
-    if (hidden) hidden.value = "";
-    if (state.selectedInst) selectContract(state.selectedInst, null, true);
-  }
-
   function quoteUrl(instId) {
     const mode = currentSizeMode();
     let url = "/api/options/quote?inst_id=" + encodeURIComponent(instId) + "&mode=" + mode;
@@ -1288,6 +1168,8 @@
         startPendingOrdersPoll();
         refreshAllPositions();
         if (typeof refreshAccountSnapshot === "function") refreshAccountSnapshot();
+        closeOrderDialog();
+        setOptionsPosTab("pending");
         return true;
       }
       alert(d.msg || "下单失败");
@@ -2191,44 +2073,31 @@
 
   document.querySelectorAll('input[name="opt-size-mode"]').forEach(function (r) {
     r.addEventListener("change", function () {
-      const mode = currentSizeMode();
       updateSizeInputs();
-      if (mode === "eth_amount") {
-        openEthOrderDialog();
-        return;
-      }
       if (state.selectedInst) selectContract(state.selectedInst, null, true);
     });
   });
 
-  const ethBackdrop = document.getElementById("opt-eth-order-backdrop");
-  const ethCancel = document.getElementById("opt-eth-order-cancel");
-  const ethSubmit = document.getElementById("opt-eth-order-submit");
-  const ethAmount = document.getElementById("opt-eth-order-amount");
-  if (ethCancel) ethCancel.addEventListener("click", cancelEthOrderDialog);
-  if (ethSubmit) ethSubmit.addEventListener("click", submitEthOrderDialog);
-  if (ethAmount) {
-    ethAmount.addEventListener("input", refreshEthOrderPreview);
-    ethAmount.addEventListener("change", refreshEthOrderPreview);
-    ethAmount.addEventListener("keydown", function (ev) {
-      if (ev.key === "Enter") {
-        ev.preventDefault();
-        submitEthOrderDialog();
-      }
+  function bindOrderDialogChrome() {
+    const host = orderPanelHost();
+    const closeBtn = document.getElementById("opt-order-close-btn");
+    const cancelBtn = document.getElementById("opt-order-cancel-btn");
+    if (closeBtn) closeBtn.addEventListener("click", closeOrderDialog);
+    if (cancelBtn) cancelBtn.addEventListener("click", closeOrderDialog);
+    if (host) {
+      host.addEventListener("click", function (ev) {
+        if (ev.target === host) closeOrderDialog();
+      });
+    }
+    document.addEventListener("keydown", function (ev) {
+      if (ev.key !== "Escape") return;
+      const h = orderPanelHost();
+      if (h && !h.hidden) closeOrderDialog();
     });
   }
-  if (ethBackdrop) {
-    ethBackdrop.addEventListener("click", function (ev) {
-      if (ev.target === ethBackdrop) cancelEthOrderDialog();
-    });
-  }
-  document.addEventListener("keydown", function (ev) {
-    if (ev.key !== "Escape") return;
-    const bd = document.getElementById("opt-eth-order-backdrop");
-    if (bd && !bd.hidden) cancelEthOrderDialog();
-  });
+  bindOrderDialogChrome();
 
-  ["opt-sheets-amount", "opt-target-idx"].forEach(function (id) {
+  ["opt-sheets-amount", "opt-eth-amount", "opt-target-idx"].forEach(function (id) {
     const el = document.getElementById(id);
     if (!el) return;
     el.addEventListener("change", function () {
diff --git a/lib/instance/templates/embed_shell.html b/lib/instance/templates/embed_shell.html
index 3884997..d02f1dd 100644
--- a/lib/instance/templates/embed_shell.html
+++ b/lib/instance/templates/embed_shell.html
@@ -7,7 +7,7 @@
     <link rel="stylesheet" href="/static/instance_theme_early.css?v=4">
     <link rel="stylesheet" href="/static/account_risk_badge.css?v=4">
     <link rel="stylesheet" href="/static/instance_page.css?v=11">
-    <link rel="stylesheet" href="/static/instance_theme.css?v=98">
+    <link rel="stylesheet" href="/static/instance_theme.css?v=99">
     <script src="/static/account_risk_badge.js?v=4"></script>
     <meta name="theme-color" content="#0b0d14">
     <title>{{ pwa_app_name }}</title>
diff --git a/lib/instance/templates/index.html b/lib/instance/templates/index.html
index 26142c9..0f65049 100644
--- a/lib/instance/templates/index.html
+++ b/lib/instance/templates/index.html
@@ -17,7 +17,7 @@
     <link rel="manifest" href="/static/icons/manifest.webmanifest">
     <title>{{ pwa_app_name }}</title>
     <link rel="stylesheet" href="/static/instance_page.css?v=11">
-    <link rel="stylesheet" href="/static/instance_theme.css?v=98">
+    <link rel="stylesheet" href="/static/instance_theme.css?v=99">
 
 </head>
 <body
diff --git a/lib/options/templates/options_panel.html b/lib/options/templates/options_panel.html
index 5003c71..d8be670 100644
--- a/lib/options/templates/options_panel.html
+++ b/lib/options/templates/options_panel.html
@@ -64,11 +64,14 @@
                     </tbody>
                 </table>
             </div>
-            <div id="opt-order-panel-host" class="opt-order-panel-host" hidden aria-hidden="true">
-                <div id="opt-order-panel" class="opt-order-panel-inner" style="display:none">
+            <div id="opt-order-panel-host" class="opt-order-backdrop" hidden aria-hidden="true">
+                <div id="opt-order-panel" class="opt-order-dialog" role="dialog" aria-modal="true" aria-labelledby="opt-order-dialog-title" style="display:none">
+                    <div class="opt-order-dialog-head">
+                        <h3 class="opt-order-title" id="opt-order-dialog-title">下单</h3>
+                        <button type="button" class="btn-secondary" id="opt-order-close-btn" style="font-size:.72rem;padding:2px 10px">取消</button>
+                    </div>
                     <div class="opt-order-layout">
                         <div class="opt-order-main">
-                            <h3 class="opt-order-title">下单</h3>
                             <div id="opt-order-inst" class="options-order-inst"></div>
                             <div class="options-order-grid">
                                 <div><span class="k">卖一/张</span><span id="opt-order-ask" class="v">—</span></div>
@@ -98,12 +101,15 @@
                                        autocomplete="off" inputmode="numeric" data-lpignore="true" data-1p-ignore="true" data-form-type="other">
                                 <label><input type="radio" name="opt-size-mode" value="budget_full"> 按可用余额打满</label>
                                 <label><input type="radio" name="opt-size-mode" value="eth_amount" id="opt-size-mode-eth"> 指定币数量</label>
-                                {# 实际数量在弹窗录入;隐藏字段仅给报价/下单读 #}
-                                <input type="hidden" id="opt-eth-amount" value="">
+                                <input type="number" id="opt-eth-amount" min="0.01" step="0.01" placeholder="如 0.5" style="display:none"
+                                       autocomplete="off" inputmode="decimal" data-lpignore="true" data-1p-ignore="true" data-form-type="other">
                                 <input type="text" id="opt-signal-note" name="opt_signal_note" placeholder="备注(关键位说明)"
                                        autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"
                                        data-lpignore="true" data-1p-ignore="true" data-form-type="other" readonly>
+                            </div>
+                            <div class="opt-order-dialog-actions">
                                 <button type="button" class="btn-primary" id="opt-open-btn">限价买入 @ 卖一</button>
+                                <button type="button" class="btn-secondary" id="opt-order-cancel-btn">取消</button>
                             </div>
                             <div id="opt-order-msg" class="muted"></div>
                         </div>
@@ -112,23 +118,6 @@
             </div>
         </div>
 
-        {# 指定币数量下单对话框 #}
-        <div id="opt-eth-order-backdrop" class="opt-eth-order-backdrop" hidden>
-            <div class="opt-eth-order-dialog" role="dialog" aria-modal="true" aria-labelledby="opt-eth-order-title">
-                <h3 id="opt-eth-order-title">指定币数量下单</h3>
-                <p class="muted" id="opt-eth-order-inst" style="margin:0 0 10px;font-size:.78rem;word-break:break-all"></p>
-                <label class="opt-eth-order-label" for="opt-eth-order-amount">币数量</label>
-                <input type="number" id="opt-eth-order-amount" min="0.01" step="0.01" placeholder="如 0.5"
-                       autocomplete="off" inputmode="decimal" data-lpignore="true" data-1p-ignore="true" data-form-type="other">
-                <div id="opt-eth-order-preview" class="muted" style="margin:8px 0 12px;font-size:.74rem;min-height:1.2em">输入币数量后显示张数与权利金估算</div>
-                <div class="opt-eth-order-actions">
-                    <button type="button" class="btn-primary" id="opt-eth-order-submit">限价买入 @ 卖一</button>
-                    <button type="button" class="btn-secondary" id="opt-eth-order-cancel">取消</button>
-                </div>
-                <div id="opt-eth-order-msg" class="muted" style="margin-top:8px;font-size:.72rem"></div>
-            </div>
-        </div>
-
         <div class="card options-pos-card-wrap">
             <div class="options-pos-head">
                 <h2>持仓</h2>
@@ -297,4 +286,4 @@
     </div>
 </div>
 <script src="/static/options_expiry_countdown.js?v=1"></script>
-<script src="/static/options_panel.js?v=41"></script>
+<script src="/static/options_panel.js?v=43"></script>