#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-dark: #0a0e17;
            --panel-bg: rgba(16, 23, 38, 0.85);
            --accent-blue: #00f0ff;
            --accent-pink: #ff0055;
            --accent-green: #00ff66;
            --border-color: rgba(0, 240, 255, 0.2);
            --text-main: #e2e8f0;
            --text-dim: #94a3b8;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", sans-serif;
        }

        body {
            background-color: var(--bg-dark);
            color: var(--text-main);
            min-height: 100vh;
            display: flex;
            overflow-x: hidden;
            background-image: 
                radial-gradient(circle at 15% 15%, rgba(0, 240, 255, 0.05) 0%, transparent 40%),
                radial-gradient(circle at 85% 85%, rgba(255, 0, 85, 0.05) 0%, transparent 40%);
        }

        /* 响应式主布局 */
        .app-container {
            display: flex;
            width: 100vw;
            height: 100vh;
            padding: 15px;
            gap: 15px;
            overflow: hidden;
        }

        /* 左侧展示区 */
        .viewport-section {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 15px;
            min-width: 0;
        }

        .canvas-card {
            flex: 3;
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            backdrop-filter: blur(8px);
        }

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

        .chart-card {
            flex: 2;
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 10px 15px;
            position: relative;
            box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            backdrop-filter: blur(8px);
            min-height: 180px;
        }

        /* 右侧控制面板 */
        .control-panel {
            width: 380px;
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            overflow-y: auto;
            backdrop-filter: blur(8px);
            box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
            flex-shrink: 0;
        }

        .control-panel::-webkit-scrollbar {
            width: 6px;
        }
        .control-panel::-webkit-scrollbar-thumb {
            background: rgba(0, 240, 255, 0.3);
            border-radius: 3px;
        }

        /* 科技感组件样式 */
        h1 {
            font-size: 1.25rem;
            color: var(--accent-blue);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            border-bottom: 2px solid var(--border-color);
            padding-bottom: 10px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .section-title {
            font-size: 0.85rem;
            color: var(--accent-blue);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .section-title::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 12px;
            background: var(--accent-blue);
        }

        .control-group {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            padding: 12px;
        }

        .param-row {
            display: flex;
            flex-direction: column;
            gap: 4px;
            margin-bottom: 10px;
        }

        .param-row:last-child {
            margin-bottom: 0;
        }

        .label-val {
            display: flex;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-dim);
        }

        .val-highlight {
            color: var(--accent-blue);
            font-family: monospace;
            font-weight: bold;
        }

        input[type="range"] {
            -webkit-appearance: none;
            width: 100%;
            height: 4px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 2px;
            outline: none;
        }

        input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-blue);
            cursor: pointer;
            box-shadow: 0 0 8px var(--accent-blue);
        }

        /* 按钮与开关 */
        .btn-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }

        button {
            background: rgba(0, 240, 255, 0.05);
            border: 1px solid var(--border-color);
            color: var(--accent-blue);
            padding: 10px;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.2s ease;
        }

        button:hover {
            background: var(--accent-blue);
            color: #000;
            box-shadow: 0 0 12px var(--accent-blue);
        }

        button.primary {
            background: var(--accent-blue);
            color: #000;
        }

        button.primary:hover {
            box-shadow: 0 0 15px var(--accent-blue);
        }

        .switch-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            margin-top: 6px;
        }

        .switch-label {
            color: var(--text-dim);
        }

        select {
            background: rgba(10, 14, 23, 0.9);
            border: 1px solid var(--border-color);
            color: var(--text-main);
            padding: 6px 10px;
            border-radius: 6px;
            outline: none;
            cursor: pointer;
        }

        /* 实时仪表读数 */
        .telemetry-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
        }

        .telemetry-card {
            background: rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.05);
            padding: 8px;
            border-radius: 6px;
            text-align: center;
        }

        .telemetry-card .title {
            font-size: 0.7rem;
            color: var(--text-dim);
        }

        .telemetry-card .value {
            font-size: 1rem;
            font-family: monospace;
            font-weight: bold;
            margin-top: 2px;
        }

        /* 小屏幕响应式规则 (低于 900px 上下分行，整体增加滚动) */
        @media (max-width: 900px) {
            body {
                overflow-y: auto;
            }
            .app-container {
                flex-direction: column;
                height: auto;
                overflow: visible;
            }
            .control-panel {
                width: 100%;
                order: 2;
            }
            .viewport-section {
                height: 700px;
                order: 1;
            }
        }