diff --git a/nkebao/src/pages/mobile/content/materials/form/index.tsx b/nkebao/src/pages/mobile/content/materials/form/index.tsx
index 4682209c..708caa52 100644
--- a/nkebao/src/pages/mobile/content/materials/form/index.tsx
+++ b/nkebao/src/pages/mobile/content/materials/form/index.tsx
@@ -141,6 +141,7 @@ const MaterialForm: React.FC = () => {
         sendTime: sendTime || "",
         resUrls,
         urls: finalUrls,
+        type: contentType,
       };
 
       if (isEdit) {
@@ -184,7 +185,30 @@ const MaterialForm: React.FC = () => {
   }
 
   return (
-    <Layout header={<NavCommon title={isEdit ? "编辑素材" : "新建素材"} />}>
+    <Layout
+      header={<NavCommon title={isEdit ? "编辑素材" : "新建素材"} />}
+      footer={
+        <div className={style["form-actions"]}>
+          <Button
+            fill="outline"
+            onClick={handleBack}
+            className={style["back-btn"]}
+          >
+            <ArrowLeftOutlined />
+            返回
+          </Button>
+          <Button
+            color="primary"
+            onClick={handleSubmit}
+            loading={saving}
+            className={style["submit-btn"]}
+          >
+            <SaveOutlined />
+            {isEdit ? " 保存修改" : " 保存素材"}
+          </Button>
+        </div>
+      }
+    >
       <div className={style["form-page"]}>
         <div className={style["form"]}>
           {/* 基础信息 */}
@@ -370,27 +394,6 @@ const MaterialForm: React.FC = () => {
               />
             </div>
           </Card>
-
-          {/* 操作按钮 */}
-          <div className={style["form-actions"]}>
-            <Button
-              fill="outline"
-              onClick={handleBack}
-              className={style["back-btn"]}
-            >
-              <ArrowLeftOutlined />
-              返回
-            </Button>
-            <Button
-              color="primary"
-              onClick={handleSubmit}
-              loading={saving}
-              className={style["submit-btn"]}
-            >
-              <SaveOutlined />
-              {isEdit ? "保存修改" : "保存素材"}
-            </Button>
-          </div>
         </div>
       </div>
     </Layout>
diff --git a/nkebao/src/pages/mobile/content/materials/list/api.ts b/nkebao/src/pages/mobile/content/materials/list/api.ts
index d102c693..6037391f 100644
--- a/nkebao/src/pages/mobile/content/materials/list/api.ts
+++ b/nkebao/src/pages/mobile/content/materials/list/api.ts
@@ -28,7 +28,7 @@ export function updateContentItem(params: UpdateContentItemParams) {
 
 // 删除素材
 export function deleteContentItem(id: string) {
-  return request("/v1/content/item/delete", { id }, "DELETE");
+  return request("/v1/content/library/delete-item", { id }, "DELETE");
 }
 
 // 获取内容库详情
diff --git a/nkebao/src/pages/mobile/content/materials/list/index.module.scss b/nkebao/src/pages/mobile/content/materials/list/index.module.scss
index 88564e71..666b75ad 100644
--- a/nkebao/src/pages/mobile/content/materials/list/index.module.scss
+++ b/nkebao/src/pages/mobile/content/materials/list/index.module.scss
@@ -393,13 +393,25 @@
       }
     }
 
-    // 4张及以上：网格布局
+    // 4张图片：2x2网格布局
+    &.quad {
+      grid-template-columns: repeat(2, 1fr);
+
+      img {
+        width: 100%;
+        height: 140px;
+        object-fit: cover;
+        border-radius: 8px;
+      }
+    }
+
+    // 5张及以上：网格布局
     &.grid {
       grid-template-columns: repeat(3, 1fr);
 
       img {
         width: 100%;
-        height: 80px;
+        height: 100px;
         object-fit: cover;
         border-radius: 8px;
       }
@@ -413,7 +425,7 @@
         color: #666;
         font-size: 12px;
         font-weight: 500;
-        height: 80px;
+        height: 100px;
       }
     }
   }
diff --git a/nkebao/src/pages/mobile/content/materials/list/index.tsx b/nkebao/src/pages/mobile/content/materials/list/index.tsx
index ab924d9e..11c2ed0f 100644
--- a/nkebao/src/pages/mobile/content/materials/list/index.tsx
+++ b/nkebao/src/pages/mobile/content/materials/list/index.tsx
@@ -157,7 +157,9 @@ const MaterialsList: React.FC = () => {
                       ? style.double
                       : resUrls.length === 3
                         ? style.triple
-                        : style.grid
+                        : resUrls.length === 4
+                          ? style.quad
+                          : style.grid
                 }`}
               >
                 {resUrls.slice(0, 9).map((url, index) => (
@@ -364,7 +366,11 @@ const MaterialsList: React.FC = () => {
                     {renderContentTypeTag(material.contentType)}
                   </div>
                   {/* 标题 */}
-                  <div className={style["card-title"]}>{material.content}</div>
+                  {material.contentType != 4 && (
+                    <div className={style["card-title"]}>
+                      {material.content}
+                    </div>
+                  )}
                   {/* 内容预览 */}
                   {renderContentPreview(material)}