#menuBtn{
        position: fixed;
        top: 20px;
        left: 20px;
        z-index: 20;
        width: auto;
        padding: 12px 18px;
        border: none;
        border-radius: 14px;
        background: rgba(20,40,80,0.85);
        color: #d8ecff;
        font-size: 15px;
        cursor: pointer;
        backdrop-filter: blur(10px);
        border: 1px solid rgba(120,180,255,0.25);
        box-shadow:
            0 0 18px rgba(0,140,255,0.25);
        transition: 0.25s;
    }
    #menuBtn:hover{
        transform: translateY(-2px);
        background: rgba(40,80,140,0.95);
        box-shadow:
            0 0 24px rgba(80,180,255,0.45);
    }



        :root {
            --bg-color: #0b0f19;
            --panel-bg: rgba(17, 24, 39, 0.85);
            --card-bg: #1e293b;
            --accent-cyan: #06b6d4;
            --accent-blue: #3b82f6;
            --accent-pink: #ec4899;
            --text-main: #f8fafc;
            --text-sub: #94a3b8;
            --border-color: #334155;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            user-select: none;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-color);
            color: var(--text-main);
            height: 100vh;
            width: 100vw;
            overflow: hidden;
            display: flex;
        }

        /* 主容器：响应式弹性布局 */
        .app-container {
            display: flex;
            flex-direction: row;
            width: 100%;
            height: 100%;
            padding: 16px;
            gap: 16px;
        }

        /* 画布展示区（左侧/上方） */
        .viewport-section {
            flex: 1;
            position: relative;
            background: #070a12;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: 0 0 30px rgba(6, 182, 212, 0.1);
            display: flex;
            justify-content: center;
            align-items: center;
        }

        canvas {
            display: block;
            width: 100%;
            height: 100%;
        }

        /* 控制面板（右侧/下方） */
        .control-panel {
            width: 380px;
            background: var(--panel-bg);
            backdrop-filter: blur(12px);
            border-radius: 16px;
            border: 1px solid var(--border-color);
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            overflow-y: auto;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
        }

        /* 统一的科技感滚动条 */
        .control-panel::-webkit-scrollbar {
            width: 6px;
        }
        .control-panel::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 3px;
        }
        .control-panel::-webkit-scrollbar-thumb:hover {
            background: var(--accent-cyan);
        }

        .panel-title {
            font-size: 1.25rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 0.5px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border-color);
        }

        .card {
            background: var(--card-bg);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 12px;
            padding: 14px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .card-title {
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--accent-cyan);
            font-weight: 600;
        }

        /* 实时数据仪表盘 Grid */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
        }

        .metric-item {
            background: rgba(15, 23, 42, 0.6);
            padding: 8px 10px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.03);
        }

        .metric-label {
            font-size: 0.75rem;
            color: var(--text-sub);
            margin-bottom: 2px;
        }

        .metric-value {
            font-family: 'Courier New', Courier, monospace;
            font-size: 1.05rem;
            font-weight: 600;
            color: #38bdf8;
        }

        /* 滑块控件样式 */
        .control-group {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .control-label-row {
            display: flex;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--text-sub);
        }

        .control-value {
            color: var(--text-main);
            font-family: monospace;
            font-weight: bold;
        }

        input[type=range] {
            -webkit-appearance: none;
            width: 100%;
            background: #0f172a;
            height: 6px;
            border-radius: 3px;
            outline: none;
        }

        input[type=range]::-webkit-slider-thumb {
            -webkit-appearance: none;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--accent-cyan);
            cursor: pointer;
            box-shadow: 0 0 8px var(--accent-cyan);
            transition: transform 0.1s;
        }

        input[type=range]::-webkit-slider-thumb:hover {
            transform: scale(1.2);
        }

        /* 复选框样式 */
        .checkbox-group {
            display: flex;
            gap: 16px;
        }

        .checkbox-label {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            cursor: pointer;
            color: var(--text-sub);
        }

        .checkbox-label input[type="checkbox"] {
            accent-color: var(--accent-cyan);
            width: 16px;
            height: 16px;
            cursor: pointer;
        }

        /* 按钮组 */
        .button-group {
            display: flex;
            gap: 10px;
        }

        .btn {
            flex: 1;
            padding: 10px 0;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.2s;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 6px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
            color: #fff;
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
        }

        .btn-primary:hover {
            opacity: 0.9;
            box-shadow: 0 4px 16px rgba(6, 182, 212, 0.5);
        }

        .btn-secondary {
            background: #334155;
            color: var(--text-main);
        }

        .btn-secondary:hover {
            background: #475569;
        }

        /* 响应式适配：当页面较小时，上下分行排列 */
        @media (max-width: 900px) {
            body {
                overflow: auto;
                height: auto;
            }
            .app-container {
                flex-direction: column;
                height: auto;
                min-height: 100vh;
            }
            .viewport-section {
                height: 55vh;
                min-height: 380px;
                width: 100%;
            }
            .control-panel {
                width: 100%;
                height: auto;
                overflow-y: visible;
            }
        }