*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Microsoft YaHei','Segoe UI',sans-serif;background:linear-gradient(135deg,#f5f7fa,#c3cfe2);min-height:100vh;padding:20px}
.container{max-width:1400px;margin:0 auto;background:#fff;border-radius:15px;box-shadow:0 10px 40px rgba(0,0,0,.1);overflow:hidden}
.header{background:linear-gradient(135deg,#1a3c6e,#2c5282);color:#fff;padding:22px 40px;text-align:center;border-bottom:4px solid #d4a853}
.header h1{font-size:28px;font-weight:700;letter-spacing:4px}
.header .subtitle{font-size:15px;margin-top:4px;opacity:.9}

/* 顶部行：控制+物理模型 */
.top-row{display:flex;gap:15px;padding:12px 20px;background:#f8f9fa;border-bottom:1px solid #e0e0e0;flex-wrap:wrap}
.controls-left{flex:1;min-width:400px;display:flex;flex-direction:column;gap:8px}
.model-right{flex:1;min-width:500px;display:flex;flex-direction:column;gap:10px}
.model-right canvas{background:#fff;border-radius:8px;box-shadow:0 2px 6px rgba(0,0,0,.08)}

/* 控制区 */
.control-panel,.noise-panel,.btn-panel,.preset-panel{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.control-item{display:flex;align-items:center;gap:5px}
.control-item label{font-weight:600;color:#333;font-size:15px;white-space:nowrap}
.control-item select{padding:5px 8px;font-size:15px;border:2px solid #ccc;border-radius:5px;background:#fff;cursor:pointer}
.control-item select:focus{outline:none;border-color:#1a3c6e}
.control-item input[type="range"]{width:100px;height:4px;border-radius:2px;background:#ddd;outline:none;-webkit-appearance:none}
.control-item input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:13px;height:13px;border-radius:50%;background:#d4a853;cursor:pointer}

/* 噪声 */
.noise-label{font-weight:600;color:#333;font-size:15px}
.noise-btns{display:flex;gap:6px}
.noise-btn{padding:5px 14px;border:2px solid var(--btn-color);border-radius:15px;background:#fff;color:var(--btn-color);font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}
.noise-btn.active{background:var(--btn-color);color:#fff}
.noise-btn:hover{transform:translateY(-1px)}
.snr-info{font-size:14px;color:#666;margin-left:8px}

/* 按钮 */
.btn{padding:8px 18px;border:none;border-radius:6px;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s;color:#fff}
.btn:hover{transform:translateY(-1px);box-shadow:0 2px 8px rgba(0,0,0,.15)}
.btn-load{background:#2563eb}
.btn-unload{background:#d97706}
.btn-auto{background:#059669}
.btn-clear{background:#dc2626}

/* 预设 */
.preset-label{font-weight:600;color:#333;font-size:15px}
.preset-btn{padding:5px 12px;border:1px solid #ccc;border-radius:4px;background:#f1f5f9;font-size:14px;cursor:pointer;transition:all .2s}
.preset-btn:hover{background:#e2e8f0;border-color:#1a3c6e}

/* 仪表盘（纵向） */
.gauge-col{display:flex;gap:10px}
.gauge-vbox{flex:1;background:#fff;padding:8px;border-radius:6px;border:1px solid #e2e8f0;text-align:center}
.gauge-title{font-size:13px;color:#666;font-weight:600;margin-bottom:4px}
.gauge-bar-v{width:30px;height:120px;background:#e8e8e8;border-radius:6px;margin:0 auto 4px;position:relative;overflow:hidden}
.gauge-bar-v .gauge-fill{position:absolute;bottom:0;left:0;width:100%;border-radius:6px;transition:height .3s}
.gauge-blue{background:linear-gradient(0deg,#2563eb,#60a5fa)}
.gauge-orange{background:linear-gradient(0deg,#d97706,#fbbf24)}
.gauge-val{font-size:14px;font-weight:700;color:#1a3c6e}

/* 统计 */
.stats-row{display:flex;gap:15px;font-size:14px;color:#555}
.stat-load{color:#2563eb}
.stat-unload{color:#dc2626}

/* 主内容区 */
.main-row{display:flex;gap:18px;padding:12px 20px}
.left-panel{flex:0 0 45%}
.right-panel{flex:1}

/* 卡片 */
.card{background:#f8f9fa;border-radius:10px;padding:16px;margin-bottom:12px}
.card h3{color:#1a3c6e;font-size:17px;margin-bottom:10px;padding-bottom:7px;border-bottom:2px solid #d4a853}

/* 表格 */
.table-wrap{max-height:250px;overflow-y:auto;border:1px solid #e2e8f0;border-radius:6px}
#dataTable{width:100%;border-collapse:collapse;font-size:15px}
#dataTable th{background:#1a3c6e;color:#fff;padding:8px 12px;text-align:center;position:sticky;top:0;font-size:15px;font-weight:700}
#dataTable td{padding:7px 12px;text-align:center;border-bottom:1px solid #eee}
#dataTable tbody tr:nth-child(even){background:#f1f5f9}
#dataTable tbody tr:hover{background:#e2e8f0}
.dir-load{color:#2563eb;font-weight:600}
.dir-unload{color:#dc2626;font-weight:600}

/* 指标 */
.metrics-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.metric-card{background:#fff;padding:12px;border-radius:8px;text-align:center;box-shadow:0 1px 4px rgba(0,0,0,.05)}
.metric-label{font-size:14px;color:#888;margin-bottom:3px}
.metric-value{font-size:20px;font-weight:700;color:#1a3c6e}
.metric-unit{font-size:12px;color:#aaa;margin-top:1px}
.metric-extra{font-size:13px;margin-top:2px;font-weight:600}

/* 图表 */
.chart-card canvas{width:100%;height:auto;background:#fff;border-radius:6px;box-shadow:0 2px 6px rgba(0,0,0,.06)}

/* 折叠 */
.collapsible-header{display:flex;justify-content:space-between;align-items:center;cursor:pointer;user-select:none}
.collapsible-header h3{border-bottom:none;margin-bottom:0;padding-bottom:0}
.toggle-icon{font-size:14px;color:#666;transition:transform .3s}
.toggle-icon.collapsed{transform:rotate(-90deg)}
.collapsible-body{overflow:hidden;transition:max-height .3s ease}
.collapsible-body.collapsed{max-height:0!important;padding:0}
.td-row{display:flex;gap:12px;margin-top:10px}
.td-subplot{flex:1}
.td-subplot h4{font-size:14px;color:#555;margin-bottom:5px}
.td-subplot canvas{width:100%;height:auto;background:#fff;border-radius:5px;box-shadow:0 1px 3px rgba(0,0,0,.05)}

/* 页脚 */
.footer{padding:16px 40px 20px;text-align:center}
.footer-divider{height:3px;background:linear-gradient(90deg,transparent,#1a3c6e 20%,#d4a853 50%,#1a3c6e 80%,transparent);margin-bottom:10px}
.footer-text{color:#1a3c6e;font-size:15px;font-weight:500;letter-spacing:4px}

@media(max-width:900px){
    .top-row{flex-direction:column}
    .model-right{flex:1}
    .main-row{flex-direction:column}
    .metrics-grid{grid-template-columns:repeat(2,1fr)}
    .td-row{flex-direction:column}
    .control-panel,.noise-panel,.btn-panel,.preset-panel{flex-direction:column;align-items:flex-start}
}