feat: implement UI privacy and aesthetic refinements (hidden usernames, random icons, compact layout)

popup.css

@@ -215,13 +215,15 @@ button {
     background: var(--panel-bg);
     border: 1px solid var(--border-color);
     border-radius: 12px;
-    padding: 10px 12px;
+    padding: 8px 12px;
+    /* 减少高度，从 10px 降到 8px */
     display: flex;
     align-items: center;
     justify-content: space-between;
     transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
     box-shadow: var(--shadow-sm);
-    cursor: grab;
+    margin-bottom: 8px;
+    /* 紧凑间距 */
 }
 
 .rule-item:active {
@@ -273,22 +275,38 @@ button {
     background: rgba(59, 130, 246, 0.1);
 }
 
+.rule-icon-box {
+    width: 28px;
+    height: 28px;
+    background: rgba(59, 130, 246, 0.08);
+    border-radius: 8px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    color: var(--accent-color);
+    margin-right: 10px;
+    flex-shrink: 0;
+}
+
 .rule-domain {
     font-size: 13px;
-    font-weight: 600;
-    margin-bottom: 2px;
+    font-weight: 500;
+    color: var(--text-primary);
+    display: flex;
+    align-items: center;
+    gap: 6px;
     white-space: nowrap;
     overflow: hidden;
     text-overflow: ellipsis;
-    color: var(--text-primary);
 }
 
 .rule-env {
     display: inline-block;
-    padding: 2px 6px;
+    padding: 1px 6px;
     border-radius: 4px;
     font-size: 10px;
-    font-weight: 500;
+    font-weight: 600;
+    text-transform: uppercase;
     margin-left: 6px;
     vertical-align: middle;
 }
@@ -317,14 +335,6 @@ button {
     border: 1px solid #FBCFE8;
 }
 
-.rule-acc {
-    font-size: 11px;
-    color: var(--text-secondary);
-    white-space: nowrap;
-    overflow: hidden;
-    text-overflow: ellipsis;
-}
-
 .rule-actions {
     display: flex;
     gap: 4px;
@@ -374,12 +384,21 @@ button {
     opacity: 0.85;
     background: rgba(248, 250, 252, 0.6);
     border-style: dashed;
-    padding-left: 8px; /* 移除拖拽手柄留下的空白 */
+    padding: 8px 12px !important;
+    width: 100% !important;
+    box-sizing: border-box !important;
+    margin-bottom: 8px;
+    margin-left: 0 !important;
 }
 
 #archive-list .rule-info {
     filter: grayscale(0.4);
-    padding-left: 4px; /* 让文字更靠左 */
+    flex: 1;
+}
+
+#archive-list .rule-icon-box {
+    background: rgba(100, 116, 139, 0.1);
+    color: var(--text-secondary);
 }
 
 #archive-list .rule-item:hover {
@@ -423,4 +442,4 @@ button {
 #archive-list .rule-info {
     padding-left: 0 !important;
     flex: 1 !important;
-}
+}