/* 用户案例页面样式 */

.cases-main {
    padding: 100px 0 60px;
    min-height: calc(100vh - 300px);
}

/* 页面标题 */
.page-header {
    text-align: center;
    margin-bottom: 60px;
}

.page-header h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 15px;
    color: #333;
}

.page-header p {
    font-size: 18px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* 行业筛选 */
.industry-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    border: 2px solid #3498db;
    background-color: transparent;
    color: #3498db;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    background-color: #3498db;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.filter-btn.active {
    background-color: #3498db;
    color: #fff;
}

/* 案例网格 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

/* 案例卡片 */
.case-card {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* 案例头部 */
.case-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.case-company {
    display: flex;
    align-items: center;
    gap: 15px;
}

.company-logo {
    width: 50px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
}

.case-header h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
}

.case-badge {
    background-color: #27ae60;
    color: #fff;
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
}

/* 案例内容 */
.case-content {
    padding: 30px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* 案例统计 */
.case-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 25px;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 8px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 28px;
    font-weight: 700;
    color: #3498db;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 14px;
    color: #666;
}

/* 案例描述 */
.case-description {
    margin-bottom: 25px;
}

.case-description h4 {
    font-size: 16px;
    font-weight: 600;
    margin: 20px 0 10px 0;
    color: #333;
}

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

/* 案例引用 */
.case-quote {
    background-color: #f8f9fa;
    padding: 20px;
    border-left: 4px solid #3498db;
    border-radius: 8px;
    margin-top: auto;
}

.case-quote p {
    color: #555;
    font-style: italic;
    line-height: 1.6;
    margin-bottom: 10px;
}

.quote-author {
    color: #3498db;
    font-weight: 600;
    font-size: 14px;
    text-align: right;
}

/* 行业颜色 */
.case-card[data-industry="internet"] .case-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.case-card[data-industry="manufacturing"] .case-header {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.case-card[data-industry="education"] .case-header {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.case-card[data-industry="retail"] .case-header {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.case-card[data-industry="finance"] .case-header {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

/* 数据统计 */
.cases-stats {
    background-color: #fff;
    padding: 50px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    margin-bottom: 60px;
}

.cases-stats h2 {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 40px;
    color: #333;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.stat-card {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.stat-card .stat-icon {
    color: #3498db;
    margin-bottom: 15px;
}

.stat-card .stat-icon svg {
    width: 48px;
    height: 48px;
}

.stat-card .stat-number {
    font-size: 36px;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
}

.stat-card .stat-label {
    font-size: 16px;
    color: #666;
}

/* CTA */
.cases-cta {
    text-align: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 50px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.cases-cta h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
}

.cases-cta p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 30px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.cases-cta .btn {
    padding: 15px 40px;
    font-size: 16px;
}

.cases-cta .btn-primary {
    background-color: #fff;
    color: #3498db;
}

.cases-cta .btn-primary:hover {
    background-color: #f8f9fa;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.3);
}

.cases-cta .btn-secondary {
    background-color: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.cases-cta .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .cases-grid {
        grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
        gap: 25px;
    }
    
    .case-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .cases-main {
        padding: 100px 0 40px;
    }
    
    .page-header h1 {
        font-size: 36px;
    }
    
    .page-header p {
        font-size: 16px;
    }
    
    .industry-filters {
        gap: 10px;
    }
    
    .filter-btn {
        padding: 8px 20px;
        font-size: 13px;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .case-stats {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .cases-stats h2 {
        font-size: 28px;
    }
    
    .cases-cta h2 {
        font-size: 28px;
    }
    
    .cases-cta p {
        font-size: 16px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .cases-main {
        padding: 100px 0 30px;
    }
    
    .page-header h1 {
        font-size: 28px;
    }
    
    .page-header p {
        font-size: 14px;
    }
    
    .industry-filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-btn {
        width: 100%;
        text-align: center;
    }
    
    .case-header {
        padding: 20px;
    }
    
    .case-content {
        padding: 25px;
    }
    
    .case-stats {
        padding: 15px;
    }
    
    .stat-number {
        font-size: 24px;
    }
    
    .cases-stats {
        padding: 30px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .stat-card {
        padding: 25px;
    }
    
    .stat-card .stat-number {
        font-size: 28px;
    }
    
    .cases-cta {
        padding: 30px;
    }
    
    .cases-cta h2 {
        font-size: 24px;
    }
}

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

.case-card {
    animation: fadeInUp 0.6s ease forwards;
}

.case-card:nth-child(1) {
    animation-delay: 0.1s;
}

.case-card:nth-child(2) {
    animation-delay: 0.2s;
}

.case-card:nth-child(3) {
    animation-delay: 0.3s;
}

.case-card:nth-child(4) {
    animation-delay: 0.4s;
}

.case-card:nth-child(5) {
    animation-delay: 0.5s;
}

.case-card:nth-child(6) {
    animation-delay: 0.6s;
}

.stat-card {
    animation: fadeInUp 0.6s ease forwards;
}

.stat-card:nth-child(1) {
    animation-delay: 0.1s;
}

.stat-card:nth-child(2) {
    animation-delay: 0.2s;
}

.stat-card:nth-child(3) {
    animation-delay: 0.3s;
}

.stat-card:nth-child(4) {
    animation-delay: 0.4s;
}

/* 滚动条样式 */
.cases-grid::-webkit-scrollbar {
    width: 8px;
}

.cases-grid::-webkit-scrollbar-track {
    background: #f1f1f1;
}

.cases-grid::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

.cases-grid::-webkit-scrollbar-thumb:hover {
    background: #555;
}