0.7);
            padding: 8px 12px;
            border-radius: 8px;
            font-family: Arial, sans-serif;
            font-size: 14px;
            color: #000;
        }
    </style>
</head>

<body>
    <canvas id="solarSystem"></canvas>
    <div class="info-panel">
        <div>FPS: <span id="fps">0</span></div>
        <div>AVG FPS: <span id="avgFps">0</span></div>
        <div>Earth Day: <span id="earthDay">0</span></div>
    </div>

    <script>
        // 主Canvas设置
        const canvas = d