refactor: 隔离 Websites.vue 全局样式，仅对 Element Plus 壳层节点应用非 scoped 样式以防污染其他页面

frontend/src/views/Websites.vue

@@ -1334,7 +1334,7 @@ function confirmGroupSelection() {
 
 function adjustPercent(amount: number) {
   let val = Number(bindingForm.value.percent) || 0
-  val = Math.max(0, val + amount)
+  val = Math.max(0, Math.min(100, val + amount))
   bindingForm.value.percent = Number(val.toFixed(2))
 }
 
@@ -1965,7 +1965,9 @@ onMounted(loadAll)
 .btn-save:hover {
   background: #cb8440 !important;
 }
+</style>
 
+<style>
 /* Custom Theme Dialog & Drawer */
 .custom-binding-drawer .el-drawer__body,
 .custom-binding-drawer .el-drawer__header,
@@ -2050,7 +2052,9 @@ onMounted(loadAll)
 .custom-theme-select .el-select__placeholder {
   color: #f5ecea !important;
 }
+</style>
 
+<style scoped>
 /* Layout for selectors dialog */
 .group-selector-layout {
   display: grid;