* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.case-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.case-item {
    margin-bottom: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.case-item h2 {
    background: linear-gradient(to right, #00729e, #2d6dad);
    color: white;
    padding: 15px 20px;
    font-size: 24px;
    position: relative;
    margin: 0;
}

.case-item h2::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    width: 40%;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.1));
}

.case-content {
    display: flex;
    padding: 20px;
    gap: 30px;
    align-items: center;
}

.case-image {
    flex: 1;
    order: 1;
}

.case-image img {
    width: 100%;
    height: auto;
    border-radius: 4px;
}

.case-info {
    flex: 1;
    order: 2;
}

.case-info h3 {
    color: #003366;
    margin: 15px 0 10px;
    font-size: 20px;
}

.case-info p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

/* 第一个和第三个案例的文字在左，图片在右 */
.case-item:nth-child(odd) .case-image {
    order: 2;
}

.case-item:nth-child(odd) .case-info {
    order: 1;
}

@media (max-width: 768px) {
    .case-container {
        padding: 10px;
    }

    .case-item {
        margin-bottom: 20px;
    }

    .case-item h2 {
        font-size: 20px;
        padding: 12px 15px;
    }

    .case-content {
        flex-direction: column;
    }
    
    /* 在移动端重置所有order，保持统一的垂直排列 */
    .case-image,
    .case-info {
        width: 100%;
        order: unset;
    }
    
    /* 在移动端图片始终在上，文字在下 */
    .case-item:nth-child(odd) .case-image,
    .case-item:nth-child(even) .case-image {
        order: 1;
    }
    
    .case-item:nth-child(odd) .case-info,
    .case-item:nth-child(even) .case-info {
        order: 2;
    }

    .case-info h3 {
        font-size: 18px;
        margin: 12px 0 8px;
    }

    .case-info p {
        font-size: 14px;
        line-height: 1.5;
        margin-bottom: 12px;
    }

    .case-info p br {
        display: block;
        content: "";
        margin-top: 8px;
    }

    .case-info p:has(> br) {
        padding-left: 15px;
    }
}

@media (max-width: 480px) {
    .case-container {
        padding: 8px;
    }

    .case-item {
        margin-bottom: 15px;
        border-radius: 6px;
    }

    .case-item h2 {
        font-size: 18px;
        padding: 10px 12px;
    }

    .case-content {
        padding: 12px;
        gap: 15px;
    }

    .case-info h3 {
        font-size: 16px;
    }

    .case-info p {
        font-size: 13px;
    }
}