fix: 修复系统图标圆角遮挡问题和 StatsBar 组件时间

src/components/sections/NodeCard.tsx

@@ -53,7 +53,7 @@ export const NodeCard = ({ node, enableSwap }: NodeCardProps) => {
             <img
               src={getOSImage(node.os)}
               alt={node.os}
-              className="w-6 h-6 rounded-full"
+              className="w-6 h-6 object-contain"
               loading="lazy"
             />
             <CardTitle className="text-base font-bold">{node.name}</CardTitle>

src/components/sections/StatsBar.tsx

@@ -7,6 +7,7 @@ import {
   DropdownMenuTrigger,
 } from "@/components/ui/dropdown-menu";
 import { Settings2 } from "lucide-react";
+import { useEffect, useState } from "react";
 import { Switch } from "@/components/ui/switch";
 import { Button } from "@/components/ui/button";
 import { formatBytes } from "@/utils";
@@ -31,7 +32,6 @@ interface StatsBarProps {
     currentSpeedDown: number;
   };
   loading: boolean;
-  currentTime: Date;
 }
 
 export const StatsBar = ({
@@ -39,9 +39,16 @@ export const StatsBar = ({
   setDisplayOptions,
   stats,
   loading,
-  currentTime,
 }: StatsBarProps) => {
   const isMobile = useIsMobile();
+  const [time, setTime] = useState(new Date());
+
+  useEffect(() => {
+    const timer = setInterval(() => {
+      setTime(new Date());
+    }, 1000);
+    return () => clearInterval(timer);
+  }, []);
 
   // 获取已启用的统计项列表
   const enabledStats = Object.keys(displayOptions).filter(
@@ -60,7 +67,7 @@ export const StatsBar = ({
                   当前时间
                 </label>
                 <label className="font-medium -mt-2 text-md">
-                  {currentTime.toLocaleTimeString()}
+                  {time.toLocaleTimeString()}
                 </label>
               </div>
             </div>

src/pages/Home.tsx

@@ -27,7 +27,6 @@ const HomePage: React.FC<HomePageProps> = ({ viewMode, searchTerm }) => {
     traffic: true,
     speed: true,
   });
-  const [currentTime] = useState(new Date());
 
   const combinedNodes = useMemo<NodeWithStatus[]>(() => {
     if (!staticNodes) return [];
@@ -88,7 +87,6 @@ const HomePage: React.FC<HomePageProps> = ({ viewMode, searchTerm }) => {
           setDisplayOptions={setDisplayOptions}
           stats={stats}
           loading={loading}
-          currentTime={currentTime}
         />
       )}