/* 案例页面专用样式 */

/* 筛选按钮样式 */
.filter-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid #0066CC;
    background: transparent;
    color: #0066CC;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.filter-btn:hover {
    background: #0066CC;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.filter-btn.active {
    background: #0066CC;
    color: white;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

/* 案例网格布局 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    /*margin-top: 2rem;*/
}

/* 案例卡片样式 */
.case-item {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    opacity: 1;
    transform: translateY(0);
}

.case-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.case-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.case-item:hover .case-image img {
    transform: scale(1.05);
}

.case-content {
    padding: 1.5rem;
}

.case-content h3 {
    color: #333;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.case-systems {
    color: #0066CC;
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    font-weight: 500;
}

.case-description {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.case-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;    
    padding: 0.5rem 0;
    border-top: 1px solid #eee;    
}

.case-amount {
    font-size: 1.1rem;
    font-weight: 700;
    color: #e74c3c;
}

.case-category {
    background: linear-gradient(135deg, #0066CC, #1E88E5);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.case-performance {
    color: #27ae60;
    font-size: 0.85rem;
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .filter-container {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .case-content {
        padding: 1rem;
    }
    
    .case-content h3 {
        font-size: 1.1rem;
    }
    
    .case-meta {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.case-item.fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* 加载状态 */
.cases-grid.loading .case-item {
    opacity: 0.5;
    pointer-events: none;
}

/* 空状态 */
.no-results {
    text-align: center;
    padding: 3rem;
    color: #666;
}

.no-results h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.no-results p {
    font-size: 1rem;
    line-height: 1.6;
}