新增功能：支持单独删除分析列表中的文件

static/css/style.css

@@ -244,7 +244,7 @@ body {
 
 .file-tag {
     font-size: 12px;
-    padding: 4px 12px;
+    padding: 4px 8px 4px 12px;
     background: rgba(255, 255, 255, 0.6);
     border: 1px solid #e2e8f0;
     border-radius: 20px;
@@ -252,6 +252,9 @@ body {
     cursor: pointer;
     white-space: nowrap;
     transition: all 0.2s;
+    display: inline-flex;
+    align-items: center;
+    gap: 8px;
 }
 
 .file-tag.active {
@@ -261,6 +264,33 @@ body {
     font-weight: 500;
 }
 
+.delete-file-btn {
+    width: 18px;
+    height: 18px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    border-radius: 50%;
+    transition: all 0.2s;
+    color: var(--text-tertiary);
+    font-size: 10px;
+}
+
+.delete-file-btn:hover {
+    background: rgba(239, 68, 68, 0.1);
+    color: #ef4444;
+    transform: scale(1.1);
+}
+
+.file-tag.active .delete-file-btn {
+    color: var(--primary-light);
+}
+
+.file-tag.active .delete-file-btn:hover {
+    background: rgba(239, 68, 68, 0.2);
+    color: #ef4444;
+}
+
 /* Dashboard Grid */
 .summary-cards {
     display: grid;