.culture-cards {
            display: flex;
            height: 400px;
            gap: 15px;
        }
        
        .card {
            flex: 1;
            border-radius: 12px;
            overflow: hidden;
            cursor: pointer;
            position: relative;
            transition: flex 0.6s cubic-bezier(0.28, 0.11, 0.32, 1);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }
        
        .card-content {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 25px;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
            color: white;
            transition: 0.6s;
        }
        
        .card-title {
            font-size: 1.5rem;
            margin-bottom: 10px;
            font-weight: 600;
        }
        
        .card-desc {
            opacity: 0;
            max-height: 0;
            overflow: hidden;
            transition: opacity 0.4s, max-height 0.4s;
            font-size: 1rem;
            line-height: 1.6;
        }
        
        .card:hover {
            flex: 3;
        }
        
        .card:hover .card-desc {
            opacity: 1;
            max-height: 200px;
        }
        
        /* 各个卡片的背景图 */
        .card:nth-child(1) {
            background: url('https://mpsww.oss-cn-hangzhou.aliyuncs.com/uploads/banner/photo-1497366754035-f200968a6e72%20%281%29.avif') center/cover;
        }
        
        .card:nth-child(2) {
            background: url('https://mpsww.oss-cn-hangzhou.aliyuncs.com/uploads/banner/photo-1521737852567-6949f3f9f2b5.avif') center/cover;
        }
        
        .card:nth-child(3) {
            background: url('https://mpsww.oss-cn-hangzhou.aliyuncs.com/uploads/banner/photo-1516321318423-f06f85e504b3.avif') center/cover;
        }
        
        .card:nth-child(4) {
            background: url('https://mpsww.oss-cn-hangzhou.aliyuncs.com/uploads/banner/photo-1552664730-d307ca884978.avif') center/cover;
        }
        
        /* 响应式设计 */
        @media (max-width: 900px) {
            .culture-cards {
                flex-direction: column;
                height: auto;
            }
            
            .card {
                height: 120px;
                margin-bottom: 15px;
            }
            
            .card:hover {
                flex: 1;
                height: 300px;
            }
        }