优化UI

core/frontend/src/library-page.css

@@ -19,6 +19,11 @@
   .library-page { margin: -28px -24px -48px; }
 }
 
+.library-page .lib-inner {
+  width: min(1560px, 100%);
+  margin: 0 auto;
+}
+
 .library-page .lib-head {
   min-height: 76px;
   display: flex;
@@ -410,8 +415,10 @@
 .library-page .lib-sel-confirm:disabled { opacity: 0.4; cursor: not-allowed; }
 .library-page .list-pager { margin-top: 20px; }
 
-@media (max-width: 1100px) {
+@media (max-width: 1500px) {
   .library-page .lib-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
+}
+@media (max-width: 1100px) {
   .library-page .lib-sel-bar { left: 50%; }
   .library-page .lib-toolbar { flex-wrap: wrap; }
 }