.brand-cases-container {
            max-width: 1200px;
           margin: 120px auto;
           //*  background: white;
            border-radius: 12px;**/
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            overflow: hidden;

        }
        
        .brand-cases-header {
            padding: 0px 20px 20px;
            text-align: center;
        }
        
        .brand-cases-title {
            font-size: 28px;
            font-weight: 600;
            color: #1a1a1a;
            margin-bottom: 10px;
        }
        
        .brand-cases-more {
            color: #a41626;
            font-size: 14px;
            text-decoration: none;
            display: inline-block;
            position: relative;
            padding-bottom: 2px;
        }
        
        .brand-cases-more::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 1px;
            background-color: #a41626;
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }
        
        .brand-cases-more:hover::after {
            transform: scaleX(1);
        }
        
        .brand-cases-tabs {
            display: flex;
            border-bottom: 1px solid #e2e8f0;
            margin: 0 20px;
        }
        
        .brand-cases-tab {
            flex: 1;
            text-align: center;
            padding: 16px 0;
            cursor: pointer;
            position: relative;
            font-weight: 500;
            color: #64748b;
            transition: all 0.3s ease;
        }
        
        .brand-cases-tab.active {
            color: #a41626;
            font-weight: 700;
        }
        
        .brand-cases-tab::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: #a41626;
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }
        
        .brand-cases-tab.active::after {
            transform: scaleX(1);
        }
        
        .brand-cases-content {
            padding: 40px 20px;
            position: relative;
            min-height: 450px;
        }
        
        .brand-cases-slider {
            display: flex;
            height: 360px;
            background: linear-gradient(135deg, #a41626, #e74c3c);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
            position: relative;
        }
        
        .brand-cases-text {
            flex: 1;
            padding: 60px 48px 0 48px;
            color: white;
            position: relative;
            z-index: 2;
        }
        
        .brand-cases-image {
            flex: 1;
            position: relative;
            overflow: hidden;
        }
        
        .brand-cases-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .brand-cases-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, rgba(164, 22, 38, 0.7) 0%, rgba(231, 76, 60, 0.3) 100%);
        }
        
        .brand-cases-name {
            font-size: 24px;
            margin-bottom: 11px;
            position: relative;
        }
        
        .brand-cases-name::before {
            content: '"';
            position: absolute;
            left: -15px;
            top: -5px;
            font-size: 32px;
            color: rgba(255, 255, 255, 0.7);
        }
        
        .brand-cases-desc {
            font-size: 14px;
            line-height: 24px;
            opacity: 0.7;
            margin-bottom: 40px;
        }
        
        .brand-cases-stats {
            display: flex;
            gap: 30px;
            margin-bottom: 30px;
        }
        
        .brand-cases-stat {
            display: flex;
            flex-direction: column;
        }
        
        .brand-cases-stat-label {
            font-size: 12px;
            margin-bottom: 8px;
        }
        
        .brand-cases-stat-value {
            font-size: 32px;
            font-weight: 700;
            font-family: 'Courier New', monospace;
        }
        
        .brand-cases-stat-unit {
            font-size: 12px;
            margin-left: 2px;
        }
        
        .brand-cases-controls {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        
        .brand-cases-nav {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }
        
        .brand-cases-nav:hover {
            background-color: rgba(255, 255, 255, 0.3);
        }
        
        .brand-cases-counter {
            font-family: 'Courier New', monospace;
            font-size: 18px;
            margin: 0 15px;
        }
        
        .brand-cases-qr {
            position: absolute;
            left: 60px;
            bottom: 45px;
            z-index: 3;
        }
        
        .brand-cases-qr-container {
            display: flex;
            align-items: center;
            cursor: pointer;
        }
        
        .brand-cases-qr-code {
            width: 108px;
            height: 108px;
            background-color: white;
            border-radius: 8px;
            padding: 8px;
        }
        
        .brand-cases-qr-code img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }
        
        .brand-cases-qr-text {
            background-color: rgba(0, 0, 0, 0.7);
            color: white;
            padding: 6px 12px;
            border-radius: 4px;
            margin-left: 12px;
            font-size: 14px;
        }
        
        .brand-cases-product {
            position: absolute;
            right: 0;
            bottom: 0;
            height: 314px;
            z-index: 2;
        }
        
        .brand-cases-product img {
            height: 100%;
            object-fit: contain;
        }
        
        @media (max-width: 1024px) {
            .brand-cases-slider {
                flex-direction: column;
                height: auto;
            }
            
            .brand-cases-text {
                padding: 40px 30px;
            }
            
            .brand-cases-stats {
                flex-wrap: wrap;
                gap: 20px;
            }
            
            .brand-cases-product {
                position: relative;
                height: 250px;
                margin-top: 20px;
            }
        }
        
        @media (max-width: 768px) {
            .brand-cases-tabs {
                flex-wrap: wrap;
            }
            
            .brand-cases-tab {
                flex: 0 0 50%;
            }
            
            .brand-cases-name {
                font-size: 20px;
            }
            
            .brand-cases-stat-value {
                font-size: 24px;
            }
        }
        
        .brand-cases-category {
            position: absolute;
            top: 40px;
            left: 20px;
            right: 20px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: opacity 0.4s ease, transform 0.4s ease, visibility 0.4s;
        }
        
        .brand-cases-category.active {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        
        .mb-40 {
            margin-bottom: 40px;
        }
        
        /* 预加载样式 */
        .preload-images {
            position: absolute;
            width: 0;
            height: 0;
            overflow: hidden;
        }