.case-box {
    padding: 80px 0;
    background-color: #ffffff;
}

.case-container {
    width: 960px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    position: relative;
    margin-bottom: 80px;
}

.section-title .title {
    font-size: 24px;
    font-weight: 700;
    color: #000000;
    display: inline-block;
    background-color: #ffffff;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.section-title .line {
    width: 100%;
    height: 2px;
    background-color: #00923f;
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    z-index: 0;
}

.section-title .en-title {
    font-size: 16px;
    color: #666666;
    margin-top: 12px;
    letter-spacing: 2px;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 80px;
}

.case-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.case-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.case-img {
    position: relative;
    width: 100%;
    height: 280px;
    overflow: hidden;
}

.case-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.case-item:hover .case-img img {
    transform: scale(1.1);
}

.case-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: #ffffff;
    padding: 24px 16px 16px;
    transition: all 0.3s ease;
}

.case-item:hover .case-overlay {
    background: linear-gradient(to top, rgba(0, 146, 63, 0.9), transparent);
}

.case-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.case-desc {
    font-size: 14px;
    line-height: 1.4;
    opacity: 0.9;
}

.case-category {
    margin-bottom: 60px;
}

.category-title {
    font-size: 20px;
    font-weight: 700;
    color: #117750;
    margin-bottom: 32px;
    padding-left: 16px;
    border-left: 4px solid #00923f;
}

.contact-section {
    padding: 80px 0;
    background-color: #e1e2e6;
}

.contact-content {
    width: 960px;
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    padding: 0 24px;
}

.contact-item img {
    width: 48px;
    height: 48px;
    margin-right: 16px;
    flex-shrink: 0;
}

.contact-text {
    flex: 1;
}

.contact-label {
    font-size: 16px;
    font-weight: 700;
    color: #117750;
    margin-bottom: 8px;
}

.contact-value {
    font-size: 14px;
    color: #333333;
    line-height: 1.5;
}

@media (max-width: 1000px) {
    .case-container,
    .contact-content {
        width: 100%;
        padding: 0 20px;
    }
    
    .case-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .case-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .case-img {
        height: 240px;
    }
    
    .contact-content {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-item {
        margin-bottom: 32px;
        width: 100%;
        max-width: 400px;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .contact-item img {
        margin-right: 0;
        margin-bottom: 16px;
    }
}