/* --- 全局极致紧凑、宽屏扁平化版式 --- */
        .uee-learning-section {
            font-family: 'Inter', -apple-system, sans-serif;
            background-color: #ffffff;
            padding: 60px 0;
            color: #111827;
            text-align: center;
        }

        .uee-container {
            width: 92%;
            max-width: 1300px;
            margin: 0 auto;
        }

        /* 1. 顶部标题区域 */
        .uee-header {
            margin-bottom: 50px;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .uee-section-tag {
            background-color: #f0fdfa;
            color: #28B5B5;
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 11px;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 20px;
            border: 1px solid #ccfbf1;
        }

        .uee-header h2 {
            font-size: clamp(30px, 4.5vw, 44px);
            font-weight: 800;
            line-height: 1.05;
            letter-spacing: -2.2px;
            margin: 0 0 15px 0;
            color: #0B1221;
        }

        .uee-header p {
            font-size: 17px;
            color: #64748b;
            line-height: 1.45;
            max-width: 850px;
            margin: 0 auto;
        }

        /* 2. 主体布局：左文右图 */
        .uee-flex-layout {
            display: flex;
            align-items: center;
            gap: 50px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        /* 左侧步骤列表 */
        .uee-steps-column {
            flex: 1;
            min-width: 400px;
            text-align: left;
        }

        .uee-step-item {
            display: flex;
            gap: 20px;
            margin-bottom: 25px; /* 紧凑项间距 */
        }

        .uee-step-num {
            width: 36px;
            height: 36px;
            background-color: #f0fdfa;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 800;
            color: #28B5B5;
            flex-shrink: 0;
            border: 1px solid #e0f2f1;
        }

        .uee-step-text h4 {
            font-size: 18px;
            font-weight: 800;
            line-height: 1.1;
            margin: 0 0 6px 0;
            color: #0B1221;
        }

        .uee-step-text p {
            font-size: 14.5px;
            color: #64748b;
            line-height: 1.4;
            margin: 0;
        }

        /* 3. 右侧控制台模拟 (纯CSS) */
        .uee-console-column {
            flex: 1.2;
            min-width: 450px;
        }

        .uee-engine-card {
            background-color: #0B1221;
            border-radius: 24px;
            padding: 30px;
            box-shadow: 0 20px 50px rgba(0,0,0,0.15);
            text-align: left;
            position: relative;
        }

        /* 控制台页眉 */
        .uee-engine-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            padding-bottom: 20px;
            margin-bottom: 25px;
        }

        .uee-engine-title {
            font-family: monospace;
            font-size: 11px;
            color: #28B5B5;
            font-weight: 700;
            letter-spacing: 1px;
        }

        .uee-engine-status {
            font-size: 10px;
            color: #10b981;
            background: rgba(16, 185, 129, 0.1);
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: 700;
        }

        /* 流程节点网格 */
        .uee-nodes-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            margin-bottom: 25px;
        }

        .uee-node {
            background: rgba(255,255,255,0.03);
            border: 1px solid rgba(255,255,255,0.05);
            border-radius: 8px;
            padding: 12px 10px;
            font-size: 10px;
            color: #94a3b8;
        }

        .uee-node b { display: block; color: #fff; margin-bottom: 4px; font-size: 11px; }
        
        /* 高亮激活节点 */
        .uee-node.active {
            border-color: #28B5B5;
            background: rgba(40, 181, 181, 0.05);
            box-shadow: 0 0 15px rgba(40, 181, 181, 0.2);
        }

        /* 控制台页脚数据 */
        .uee-engine-footer {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
        }

        .uee-footer-item span { display: block; font-family: monospace; font-size: 9px; color: #64748b; margin-bottom: 5px; }
        .uee-footer-item b { font-family: monospace; font-size: 12px; color: #fff; }
        .green-text { color: #10b981 !important; }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .uee-flex-layout { flex-direction: column; }
            .uee-steps-column, .uee-console-column { min-width: 100%; }
            .uee-nodes-grid { grid-template-columns: repeat(2, 1fr); }
        }