diff --git a/app/modules/cupang/templates/cupang/box_calc.html b/app/modules/cupang/templates/cupang/box_calc.html
index 00ae37b..dbf4312 100644
--- a/app/modules/cupang/templates/cupang/box_calc.html
+++ b/app/modules/cupang/templates/cupang/box_calc.html
@@ -1,6 +1,6 @@
 {% extends "erp_base.html" %}
 
-{% block head_extra %}<link rel="stylesheet" href="/static/cupang.css?v=20260901q" />{% endblock %}
+{% block head_extra %}<link rel="stylesheet" href="/static/cupang.css?v=20260901r" />{% endblock %}
 
 {% block content %}
 <section class="cpg">
@@ -766,10 +766,9 @@
       return (contents[key] || []).filter(function (it) { return it.product_code === code; })[0];
     }
 
-    // 상자에 담기 — 용량만큼만 들어간다. 담은 수량을 돌려준다.
+    // 상자에 담기 — 용량은 표시용일 뿐, 이동은 막지 않는다(넘치면 100% 초과 표시).
     function mixPut(key, code, name, qty) {
-      var room = mixRoomFor(key, code);
-      var put = Math.min(room, qty);
+      var put = qty;
       if (put <= 0) return 0;
       var hit = mixItem(key, code);
       if (hit) { hit.quantity += put; }
@@ -809,12 +808,9 @@
       return found;
     }
 
-    // 상자 → 상자 이동. 실제로 옮긴 수량을 돌려준다(자리만큼만).
+    // 상자 → 상자 이동. 용량과 무관하게 요청한 수량을 옮긴다.
     function moveUnits(fromKey, toKey, code, name, qty) {
-      var room = mixRoomFor(toKey, code);
-      var move = Math.min(qty, room);
-      if (move <= 0) return 0;
-      var pulled = mixPull(fromKey, code, move);
+      var pulled = mixPull(fromKey, code, qty);
       if (!pulled) return 0;
       mixPut(toKey, code, name, pulled);
       return pulled;
@@ -974,7 +970,7 @@
       mixKeysOf(cid).forEach(function (k) {
         if (k === fromKey) return;
         var room = mixRoomFor(k, code);
-        opts += '<option value="' + esc(k) + '"' + (room ? "" : " disabled") + ">" +
+        opts += '<option value="' + esc(k) + '">' +
                 esc(labels[k] || k) + (room ? " (여유 " + room + "개)" : " (가득)") + "</option>";
       });
       opts += '<option value="__new__">+ 새 상자로</option>';
@@ -994,8 +990,7 @@
                  (entry.count > 1 ? '<span class="cpg-tree-per">(' + it.quantity + "개 × " + entry.count + "상자)</span>" : "") +
                  "</li>";
         }
-        var canAdd = mixRoomFor(entry.key, it.product_code) > 0 &&
-                     !!boxHaving(cid, it.product_code, entry.key);
+        var canAdd = !!boxHaving(cid, it.product_code, entry.key);
         return '<li><span class="cpg-tree-name">' + esc(it.product_name) + "</span>" +
                '<span class="cpg-mix-ctl">' +
                  '<button type="button" class="cpg-mix-step" data-mix-dec data-key="' + esc(entry.key) +
@@ -1026,11 +1021,13 @@
           boxes += a.count;
           pieces += a.count * per;
           var isMix = a.key.indexOf("m:") === 0;
-          var fillTxt = isMix ? Math.round(mixFill(a.key) * 100) + "% 채움" : "";
+          var fillPct = isMix ? Math.round(mixFill(a.key) * 100) : 0;
+          var fillTxt = isMix ? fillPct + "% 채움" : "";
+          var fillCls = fillPct > 100 ? " is-over" : "";
           items += '<li class="cpg-dist-item' + (isMix ? " is-mix" : "") + '" data-entry="' + a.id + '">' +
                      '<div class="cpg-dist-line">' +
                        '<span class="cpg-dist-name">' + esc(labels[a.key] || a.key) +
-                         (fillTxt ? ' <em class="cpg-mix-fill">' + fillTxt + "</em>" : "") + "</span>" +
+                         (fillTxt ? ' <em class="cpg-mix-fill' + fillCls + '">' + fillTxt + "</em>" : "") + "</span>" +
                        '<input class="erp-input cpg-dist-qty" type="number" min="1" max="999" step="1" inputmode="numeric" value="' + a.count + '" />' +
                        '<span class="cpg-dist-unit">상자 · ' + (a.count * per) + "개</span>" +
                        '<button type="button" class="erp-btn erp-btn-danger cpg-dist-del" title="빼기" aria-label="빼기">✕</button>' +
@@ -1273,13 +1270,9 @@
           if (entry && entry.key.indexOf("m:") === 0) {
             e.stopImmediatePropagation();     // 뒤 핸들러가 또 지우지 않게
             (contents[entry.key] || []).slice().forEach(function (it) {
-              var left = it.quantity;
-              while (left > 0) {
-                var dest = boxWithRoom(dcid, it.product_code, entry.key) || newMixBox(dcid);
-                var moved = moveUnits(entry.key, dest, it.product_code, it.product_name, left);
-                if (!moved) break;
-                left -= moved;
-              }
+              var rest = mixKeysOf(dcid).filter(function (k) { return k !== entry.key; });
+              var dest = boxWithRoom(dcid, it.product_code, entry.key) || rest[0] || newMixBox(dcid);
+              moveUnits(entry.key, dest, it.product_code, it.product_name, it.quantity);
             });
             syncMix(entry.key);
             render();
@@ -1295,7 +1288,8 @@
           var cid = centerOfKey(key);
           var item = mixItem(key, code);
           if (!item) return;
-          var to = boxWithRoom(cid, code, key) || newMixBox(cid);
+          var others = mixKeysOf(cid).filter(function (k) { return k !== key; });
+          var to = boxWithRoom(cid, code, key) || others[0] || newMixBox(cid);
           var n = moveUnits(key, to, code, item.product_name, 1);
           if (!n) { msg.textContent = "옮길 자리가 없습니다."; return; }
           render();
@@ -1308,9 +1302,6 @@
           var ikey = inc.getAttribute("data-key");
           var icode = inc.getAttribute("data-code");
           var icid = centerOfKey(ikey);
-          if (mixRoomFor(ikey, icode) <= 0) {
-            msg.textContent = "이 상자에 더 들어갈 자리가 없습니다."; return;
-          }
           var from = boxHaving(icid, icode, ikey);
           if (!from) { msg.textContent = "다른 상자에 이 제품이 없습니다."; return; }
           var src = mixItem(from, icode);
diff --git a/app/modules/cupang/templates/cupang/box_rules.html b/app/modules/cupang/templates/cupang/box_rules.html
index 8facdc4..3ebb6f6 100644
--- a/app/modules/cupang/templates/cupang/box_rules.html
+++ b/app/modules/cupang/templates/cupang/box_rules.html
@@ -1,6 +1,6 @@
 {% extends "erp_base.html" %}
 
-{% block head_extra %}<link rel="stylesheet" href="/static/cupang.css?v=20260901q" />{% endblock %}
+{% block head_extra %}<link rel="stylesheet" href="/static/cupang.css?v=20260901r" />{% endblock %}
 
 {% block content %}
 <section class="cpg">
diff --git a/app/modules/cupang/templates/cupang/centers.html b/app/modules/cupang/templates/cupang/centers.html
index 6ec8aba..858298a 100644
--- a/app/modules/cupang/templates/cupang/centers.html
+++ b/app/modules/cupang/templates/cupang/centers.html
@@ -1,6 +1,6 @@
 {% extends "erp_base.html" %}
 
-{% block head_extra %}<link rel="stylesheet" href="/static/cupang.css?v=20260901q" />{% endblock %}
+{% block head_extra %}<link rel="stylesheet" href="/static/cupang.css?v=20260901r" />{% endblock %}
 
 {% block content %}
 <section class="cpg">
diff --git a/app/modules/cupang/templates/cupang/index.html b/app/modules/cupang/templates/cupang/index.html
index d711df1..0b60663 100644
--- a/app/modules/cupang/templates/cupang/index.html
+++ b/app/modules/cupang/templates/cupang/index.html
@@ -1,6 +1,6 @@
 {% extends "erp_base.html" %}
 
-{% block head_extra %}<link rel="stylesheet" href="/static/cupang.css?v=20260901q" />{% endblock %}
+{% block head_extra %}<link rel="stylesheet" href="/static/cupang.css?v=20260901r" />{% endblock %}
 
 {% block content %}
 <section class="cpg">
diff --git a/app/modules/cupang/templates/cupang/products.html b/app/modules/cupang/templates/cupang/products.html
index 0542670..0276507 100644
--- a/app/modules/cupang/templates/cupang/products.html
+++ b/app/modules/cupang/templates/cupang/products.html
@@ -1,6 +1,6 @@
 {% extends "erp_base.html" %}
 
-{% block head_extra %}<link rel="stylesheet" href="/static/cupang.css?v=20260901q" />{% endblock %}
+{% block head_extra %}<link rel="stylesheet" href="/static/cupang.css?v=20260901r" />{% endblock %}
 
 {% block content %}
 <section class="cpg">
diff --git a/app/modules/cupang/templates/cupang/view.html b/app/modules/cupang/templates/cupang/view.html
index dac57c4..115d2a8 100644
--- a/app/modules/cupang/templates/cupang/view.html
+++ b/app/modules/cupang/templates/cupang/view.html
@@ -1,6 +1,6 @@
 {% extends "erp_base.html" %}
 
-{% block head_extra %}<link rel="stylesheet" href="/static/cupang.css?v=20260901q" />{% endblock %}
+{% block head_extra %}<link rel="stylesheet" href="/static/cupang.css?v=20260901r" />{% endblock %}
 
 {% block content %}
 {# 출고 묶음 보기 — 상자 계산 화면과 같은 3열 구성. 읽기 전용(수정 없음). #}
diff --git a/app/static/cupang.css b/app/static/cupang.css
index 7e281e4..7e9a30d 100644
--- a/app/static/cupang.css
+++ b/app/static/cupang.css
@@ -1453,3 +1453,15 @@ body.cpg-dragging { cursor: grabbing; user-select: none; }
   flex: 1 1 auto; min-height: 0;
   overflow-y: auto; overflow-x: hidden;
 }
+
+/* ③ 목록 스크롤 — 부모 높이 계산에 기대지 않도록 최대 높이를 직접 준다 */
+.cpg-dist-card .cpg-dist-list {
+  max-height: min(72vh, 820px);
+  overflow-y: auto;
+  overflow-x: hidden;
+}
+/* ①② 도 같은 방식으로 안전장치 */
+.cpg-calc-card .erp-table-wrap { max-height: min(64vh, 720px); }
+.cpg-calc-sum .cpg-sum-scroll { max-height: min(64vh, 720px); }
+/* 용량 초과 표시 */
+.cpg-mix-fill.is-over { color: var(--color-callout-red); font-weight: 600; }