.about-showcase {
        width: 100%;
        max-width: 100%;
        aspect-ratio: 16/9;
        margin: 0 auto;
        padding: 80px 0px 0px 0px;
        display: flex;
        justify-content: center;
        position: relative;
        height: 687px;
        background: linear-gradient(135deg, #e8edf7 0%, #d4dff0 100%);
    }
    
    /* 左侧标题 */
    .about-section-title {
        position: absolute;
        left: -80px;
        top: 50%;
        transform: translateY(-50%) rotate(-90deg);
        font-size: 2.5rem;
        font-weight: 700;
        color: #2c3e50;
        letter-spacing: 3px;
        text-transform: uppercase;
        white-space: nowrap;
        z-index: 5;
        padding: 20px;
        width: 300px;
        text-align: center;
    }
    
    .about-section-title::after {
        content: '';
        position: absolute;
        bottom: -10px;
        left: 0;
        width: 60%;
        height: 3px;
        background: linear-gradient(to right, #3498db, #2ecc71);
        border-radius: 2px;
    }
    
    .about-wall {
        display: grid;
        grid-template-columns: repeat(1, 1fr);
        grid-template-rows: repeat(1, 1fr);
        gap: 15px;
        width: 100%;
        height: 607px;
        max-width: 1080px;
    }
    
    .about-card {
        border-radius: 12px;
        overflow: hidden;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
        transition: all 0.4s ease;
        position: relative;
    }
    
    .about-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
        z-index: 10;
    }
    
    /* 产品1 - 占据左上角2x2区域 */
    .about-card:nth-child(1) {
        grid-column: 1 / 1;
        grid-row: 1 / 1;
    }
    

    
    .about-image {
        height: 100%;
        overflow: hidden;
        position: relative;
    }
    
    .about-image::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: linear-gradient(to bottom, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.7) 100%);
        opacity: 0.7;
        transition: opacity 0.4s ease;
    }
    
    .about-card:hover .about-image::after {
        opacity: 0.9;
    }
    
    .about-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.8s ease;
    }
    
    .about-card:hover .about-image img {
        transform: scale(1.1);
    }
    
    .about-info {
        position: absolute;
        bottom: 0;
        left: 0;
        width: 100%;
        padding: 20px;
        z-index: 2;
        color: white;
        transition: all 0.4s ease;
    }
    
    .about-card:hover .about-info {
        transform: translateY(-5px);
    }
    
    .about-info h3 {
        font-size: 1.4rem;
        margin-bottom: 10px;
        position: relative;
        padding-bottom: 8px;
        text-shadow: 0 2px 5px rgba(0,0,0,0.3);
    }
    
    .about-info h3::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 30px;
        height: 2px;
        background: linear-gradient(to right, #3498db, #2ecc71);
        border-radius: 2px;
        transition: width 0.4s ease;
    }
    
    .about-card:hover .about-info h3::after {
        width: 60px;
    }
    
    .about-info p {
        line-height: 1.5;
        margin-bottom: 15px;
        opacity: 0.9;
        text-shadow: 0 1px 3px rgba(0,0,0,0.3);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.5s ease, margin-bottom 0.5s ease, opacity 0.5s ease;
        font-size: 0.9rem;
    }
    
    .about-card:hover .about-info p {
        max-height: 80px;
        margin-bottom: 20px;
        opacity: 1;
    }
    
    .about-btn {
        display: inline-block;
        padding: 10px 20px;
        background: linear-gradient(to right, #3498db, #2ecc71);
        color: white;
        text-decoration: none;
        border-radius: 30px;
        font-weight: 600;
        text-align: center;
        transition: all 0.3s ease;
        border: none;
        cursor: pointer;
        box-shadow: 0 4px 15px rgba(52, 152, 219, 0.4);
        opacity: 0;
        transform: translateY(15px);
        transition: all 0.4s ease 0.1s;
        font-size: 0.9rem;
    }
    
    .about-card:hover .about-btn {
        opacity: 1;
        transform: translateY(0);
    }
    
    .about-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(52, 152, 219, 0.6);
    }
    
    /* 平板设备响应式设计 */
    @media (max-width: 992px) {
        .about-showcase {
            aspect-ratio: auto;
            height: auto;
            max-width: 800px;
            padding: 80px 0px 20px 0px;
        }
        
        .about-wall {
            grid-template-columns: repeat(1, 1fr);
            grid-template-rows: repeat(1, 200px);
            gap: 30px 15px 15px 15px;
            padding: 30px 0px 0px 0px;
            height: auto;
        }
        
        .about-card:nth-child(n) {
            grid-column: auto;
            grid-row: auto;
        }
        
        .about-card:nth-child(1) {
            grid-column: 1 / 1;
            grid-row: 1 / 1;
        }
        
     
        
        /* 平板设备调整标题位置 */
        .about-section-title {
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            font-size: 2.5rem;
            font-weight: 700;
            color: #2c3e50;
            letter-spacing: 3px;
            text-transform: uppercase;
            white-space: nowrap;
            z-index: 5;
            padding: 20px;
            text-align: center;
        }

        .about-section-title::after {
            content: '';
            position: absolute;
            bottom: 10px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 3px;
            background: linear-gradient(to right, #3498db, #2ecc71);
            border-radius: 2px;
        }
    }
    
    /* 手机设备响应式设计 */
    @media (max-width: 576px) {
        .about-showcase {
            padding: 40px 10px;
            height: auto;
        }
        
        .about-wall {
            grid-template-columns: 1fr;
            grid-template-rows: repeat(1, 220px);
            gap: 12px;
            padding: 60px 0px 0px 0px;
            height: auto;
        }
        
        .about-card:nth-child(n) {
            grid-column: 1 / 1;
        }
        
      
        
        /* 手机设备调整标题位置 */
        .about-section-title {
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            font-size: 2.5rem;
            font-weight: 700;
            color: #2c3e50;
            letter-spacing: 3px;
            text-transform: uppercase;
            white-space: nowrap;
            z-index: 5;
            padding: 20px;
            text-align: center;
        }
        
        .about-section-title::after {
            content: '';
            position: absolute;
            bottom: 10px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 3px;
            background: linear-gradient(to right, #3498db, #2ecc71);
            border-radius: 2px;
        }
    }