diff --git a/src/Root.vue b/src/Root.vue
index d70995d..122d7a8 100644
--- a/src/Root.vue
+++ b/src/Root.vue
@@ -1,6 +1,6 @@
 <template>
 	<b-e-flower-fall class="background" />
-	<root-layout v-if="ready" class="diselect" icp="粤ICP备2025368555号-1" domain="imyeyu.com" author="夜雨">
+	<root-layout v-if="ready" class="root-layout diselect" icp="粤ICP备2025368555号-1" domain="imyeyu.com" author="夜雨">
 		<router-view />
 	</root-layout>
 	<popup />
@@ -11,15 +11,32 @@
 import { BEFlowerFall, Popup } from "timi-web";
 import { RootLayout, UserProfilePopup } from "timi-tdesign-pc";
 
-const ready = ref(false);
+const route = useRoute();
 
-onMounted(async () => {
-	ready.value = true;
-});
+const ready = ref(false);
+onMounted(async () => ready.value = true);
+
+// ---------- 文件详情页更宽的布局 ----------
+const inFileDetail = ref(false);
+const largeWidth = computed(() => inFileDetail.value ? "1600px" : "1200px");
+const width = computed(() => inFileDetail.value ? "1200px" : "900px");
+watch(route, () => inFileDetail.value = route.name === "FileDetail");
 </script>
 
 <style lang="less">
 .background {
 	background: url("@/assets/img/main.png") fixed right bottom;
 }
+
+@media screen and (max-width: 2560px) {
+	.root-layout {
+		width: v-bind(largeWidth) !important;
+	}
+}
+
+@media screen and (max-width: 1920px) {
+	.root-layout {
+		width: v-bind(width) !important;
+	}
+}
 </style>