Auto-size hub order popup iframe so trade form shows without scrollbars.

Co-authored-by: Cursor <cursoragent@cursor.com>

static/embed_order_popup.css

@@ -1,24 +1,14 @@
-/* 中控弹窗 iframe：仅保留实盘下单表单区 */
+/* 中控弹窗 iframe：紧凑表单，无内部滚动条 */
+html:has(body[data-order-popup="1"]),
 body[data-order-popup="1"] {
-  overflow-x: hidden;
+  overflow: hidden !important;
+  height: auto !important;
 }
 
 body[data-order-popup="1"] .container.embed-order-popup-shell {
   max-width: 100%;
-  padding: 10px 12px 16px;
-}
-
-body[data-order-popup="1"] .embed-order-popup-head {
-  margin-bottom: 8px;
-}
-
-body[data-order-popup="1"] .embed-order-popup-head h1 {
-  font-size: 1rem;
-  margin: 0;
-}
-
-body[data-order-popup="1"] .header-row {
-  margin-top: 6px;
+  padding: 8px 10px 10px;
+  overflow: hidden;
 }
 
 body[data-order-popup="1"] .embed-order-popup-hide {
@@ -32,12 +22,35 @@ body[data-order-popup="1"] .order-popup-trade-grid {
 
 body[data-order-popup="1"] .order-popup-form-card {
   margin: 0;
+  padding: 10px 12px 12px;
 }
 
-body[data-order-popup="1"] .order-popup-form-card h2 {
-  font-size: 0.95rem;
+body[data-order-popup="1"] .order-popup-form-card .tip-collapse {
+  margin-bottom: 4px;
 }
 
-body[data-order-popup="1"] .order-popup-form-card > div:first-child span.btn-del {
-  display: none;
+body[data-order-popup="1"] .order-popup-form-card .tip-collapse-summary {
+  padding: 6px 8px;
+  font-size: 12px;
+}
+
+body[data-order-popup="1"] #add-order-form {
+  gap: 6px 8px;
+  flex-wrap: wrap;
+  align-items: center;
+}
+
+body[data-order-popup="1"] #add-order-form input,
+body[data-order-popup="1"] #add-order-form select,
+body[data-order-popup="1"] #add-order-form button[type="submit"] {
+  max-width: 100%;
+}
+
+body[data-order-popup="1"] #add-order-form label,
+body[data-order-popup="1"] #add-order-form > span {
+  font-size: 0.78rem !important;
+}
+
+body[data-order-popup="1"] .order-plan-preview-bar {
+  margin-top: 8px;
 }

static/instance_embed.js

@@ -35,6 +35,22 @@
     } catch (_) {}
   }
 
+  function reportOrderPopupSize() {
+    if (!isOrderPopup()) return;
+    const root = document.querySelector(".embed-order-popup-shell") || document.body;
+    const h = Math.ceil(
+      Math.max(
+        root.scrollHeight,
+        root.offsetHeight,
+        document.documentElement.scrollHeight,
+        document.body.scrollHeight
+      )
+    );
+    try {
+      window.parent.postMessage({ type: "hub-order-popup-resize", height: h }, "*");
+    } catch (_) {}
+  }
+
   function prefillOrderSymbolFromQuery() {
     if (!isOrderPopup()) return;
     let sym = "";
@@ -109,6 +125,7 @@
     if (typeof global.refreshPriceSnapshotConditional === "function") {
       global.refreshPriceSnapshotConditional();
     }
+    reportOrderPopupSize();
   }
 
   function injectFragment(html) {
@@ -280,6 +297,17 @@
     patchHardNavigations();
     bindNav();
     runPageInit(getTab());
+    reportOrderPopupSize();
+    if (isOrderPopup()) {
+      window.setTimeout(reportOrderPopupSize, 120);
+      window.setTimeout(reportOrderPopupSize, 450);
+      if (typeof ResizeObserver !== "undefined") {
+        const root = document.querySelector(".embed-order-popup-shell") || document.body;
+        try {
+          new ResizeObserver(() => reportOrderPopupSize()).observe(root);
+        } catch (_) {}
+      }
+    }
     try {
       window.parent.postMessage({ type: "instance-frame-ready" }, "*");
     } catch (_) {}