/* --- 极致紧凑、55/45 房地产挑战模块 --- */
        .uee-re-challenge-section {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            background-color: #ffffff;
            padding: 40px 5%; /* 极致缩减上下空白 */
            color: #111827;
        }

        .uee-re-challenge-container {
            max-width: 1300px;
            margin: 0 auto;
            display: flex;
            align-items: center; /* 左右垂直居中 */
            gap: 60px;
            flex-wrap: wrap;
        }

        /* --- 左侧：文字描述侧 (55% 宽度) --- */
        .uee-re-challenge-left {
            flex: 55;
            min-width: 400px;
        }

        .uee-re-challenge-left h2 {
            font-size: clamp(28px, 4vw, 36px);
            font-weight: 800;
            line-height: 1.05; /* 极致紧缩行距 */
            letter-spacing: -1.5px;
            margin: 0 0 25px 0;
            color: #0B1221;
        }

        .uee-re-challenge-left p {
            font-size: 16.5px;
            color: #4B5563;
            line-height: 1.4; /* 紧凑描述 */
            margin-bottom: 20px;
            max-width: 600px;
        }

        .uee-re-challenge-left p:last-child {
            margin-bottom: 0;
        }

        /* --- 右侧：项列表卡片 (45% 宽度) --- */
        .uee-re-challenge-right {
            flex: 45;
            min-width: 400px;
        }

        .uee-re-card-box {
            background: #ffffff;
            border: 1px solid #f1f5f9;
            border-radius: 20px;
            padding: 35px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.03);
        }

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

        .uee-re-item:last-child {
            margin-bottom: 0;
        }

        /* 图标盒子 */
        .uee-re-icon-box {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            border: 1px solid transparent;
        }

        /* 不同颜色的图标配色 */
        .re-icon-orange { background-color: #fff7ed; color: #f97316; border-color: #ffedd5; }
        .re-icon-cyan   { background-color: #f0fdfa; color: #14b8a6; border-color: #ccfbf1; }
        .re-icon-slate  { background-color: #f8fafc; color: #64748b; border-color: #f1f5f9; }

        .uee-re-text h4 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.1;
            margin: 0 0 6px 0;
            color: #0B1221;
        }

        .uee-re-text p {
            font-size: 14.5px;
            color: #6B7280;
            line-height: 1.4;
            margin: 0;
        }

        /* 响应式适配 */
        @media (max-width: 992px) {
            .uee-re-challenge-container { flex-direction: column; text-align: center; }
            .uee-re-challenge-left, .uee-re-challenge-right { min-width: 100%; }
            .uee-re-challenge-left p { margin-left: auto; margin-right: auto; }
            .uee-re-item { text-align: left; }
        }
        
        @media (max-width: 640px) {
            .uee-re-challenge-section { padding: 30px 5%; }
            .uee-re-card-box { padding: 25px; }
            .uee-re-challenge-left h2 { font-size: 28px; }
        }