/* 案例展示页面样式 */

/* 页面标题区 */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0d47a1 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
    margin-top: 70px;
}

.page-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
}

.page-subtitle {
    font-size: 20px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* 筛选标签 */
.cases-filter {
    background: var(--light-card);
    padding: 30px 0;
    border-bottom: 1px solid var(--light-border);
    position: sticky;
    top: 70px;
    z-index: 100;
}

.filter-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 10px 24px;
    border: 2px solid var(--light-border);
    background: transparent;
    border-radius: var(--radius-full);
    font-size: 15px;
    font-weight: 500;
    color: var(--light-text);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-tab:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.filter-tab.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* 案例网格 */
.cases-grid-section {
    padding: 60px 0;
    background: var(--light-bg);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

/* 案例卡片 */
.case-card {
    background: var(--light-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    border: 1px solid var(--light-border);
}

.case-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.case-card.hidden {
    display: none;
}

.case-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 给透明图标添加白色圆形背景 */
.case-image img,
.case-image svg {
    background: rgba(255, 255,255, 0.9);
    border-radius: 50%;
    padding:16px;
    width: 80px;
    height: 80px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.case-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
    color: rgba(255, 255, 255, 0.9);
    transition: transform var(--transition-base);
}

.case-card:hover .case-image-placeholder {
    transform: scale(1.1);
}

.case-tag {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary-color);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
}

.case-content {
    padding: 24px;
}

.case-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--light-text);
}

.case-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.tech-item {
    background: var(--light-bg);
    color: var(--primary-color);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
}

/* 客户评价区 */
.testimonials-section {
    padding: 80px 0;
    background: var(--light-card);
}

.section-header {
    margin-bottom: 48px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--light-text);
}

.section-subtitle {
    font-size: 18px;
    color: #666;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    background: var(--light-bg);
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--light-border);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.testimonial-rating {
    color: #ffc107;
    margin-bottom: 16px;
    font-size: 16px;
}

.testimonial-content {
    font-size: 15px;
    line-height: 1.8;
    color: var(--light-text);
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 18px;
}

.author-name {
    font-weight: 600;
    color: var(--light-text);
}

.author-company {
    font-size: 13px;
    color: #888;
}

/* CTA区域 */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #0d47a1 100%);
    color: white;
}

.cta-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.cta-section .btn-outline {
    border-color: white;
    color: white;
}

.cta-section .btn-outline:hover {
    background: white;
    color: var(--primary-color);
}

/* 模态框样式 */
.case-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.case-modal.hidden {
    display: none;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-container {
    position: relative;
    background: var(--light-card);
    border-radius: var(--radius-lg);
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast);
    z-index: 10;
}

.modal-close:hover {
    background: rgba(0, 0, 0, 0.2);
}

.modal-content {
    padding: 0;
}

.modal-header {
    padding: 40px 40px 0;
}

.modal-image {
    width: 100%;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 100px;
    color: rgba(255, 255, 255, 0.9);
}

.modal-body {
    padding: 32px 40px 40px;
}

.modal-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--light-text);
}

.modal-tag {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 24px;
}

.modal-section {
    margin-bottom: 24px;
}

.modal-section-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--light-text);
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-section-title i {
    color: var(--primary-color);
}

.modal-section p {
    line-height: 1.8;
    color: #666;
}

.modal-tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.modal-tech-item {
    background: var(--light-bg);
    border: 1px solid var(--light-border);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    color: var(--light-text);
}

.modal-highlight-list {
    list-style: none;
}

.modal-highlight-list li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
    color: #666;
    line-height: 1.6;
}

.modal-highlight-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

.modal-testimonial {
    background: var(--light-bg);
    border-radius: var(--radius-md);
    padding: 20px;
    border-left: 4px solid var(--primary-color);
}

.modal-testimonial-text {
    font-style: italic;
    color: var(--light-text);
    line-height: 1.8;
    margin-bottom: 12px;
}

.modal-testimonial-author {
    font-weight: 600;
    color: var(--primary-color);
}

.modal-actions {
    display: flex;
    gap: 12px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--light-border);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 100px 0 60px;
    }
    
    .page-title {
        font-size: 32px;
    }
    
    .page-subtitle {
        font-size: 16px;
    }
    
    .cases-filter {
        top: 60px;
        padding: 20px 0;
    }
    
    .filter-tabs {
        gap: 8px;
    }
    
    .filter-tab {
        padding: 8px 16px;
        font-size: 14px;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .cta-title {
        font-size: 28px;
    }
    
    .modal-container {
        max-height: 85vh;
    }
    
    .modal-header {
        padding: 20px 20px 0;
    }
    
    .modal-image {
        height: 200px;
        font-size: 64px;
    }
    
    .modal-body {
        padding: 24px 20px;
    }
    
    .modal-title {
        font-size: 22px;
    }
    
    .modal-actions {
        flex-direction: column;
    }
    
    .modal-actions .btn {
        width: 100%;
    }
}

/* 暗色模式适配 */
@media (prefers-color-scheme: dark) {
    .cases-filter {
        background: var(--dark-card);
        border-bottom-color: var(--dark-border);
    }
    
    .filter-tab {
        border-color: var(--dark-border);
        color: var(--dark-text);
    }
    
    .filter-tab:hover {
        border-color: var(--primary-color);
    }
    
    .cases-grid-section {
        background: var(--dark-bg);
    }
    
    .case-card {
        background: var(--dark-card);
        border-color: var(--dark-border);
    }
    
    .case-title {
        color: var(--dark-text);
    }
    
    .tech-item {
        background: var(--dark-hover);
    }
    
    .testimonials-section {
        background: var(--dark-card);
    }
    
    .testimonial-card {
        background: var(--dark-bg);
        border-color: var(--dark-border);
    }
    
    .testimonial-content {
        color: var(--dark-text);
    }
    
    .modal-container {
        background: var(--dark-card);
    }
    
    .modal-title {
        color: var(--dark-text);
    }
    
    .modal-section-title {
        color: var(--dark-text);
    }
    
    .modal-tech-item {
        background: var(--dark-hover);
        border-color: var(--dark-border);
        color: var(--dark-text);
    }
    
    .modal-testimonial {
        background: var(--dark-hover);
    }
    
    .modal-testimonial-text {
        color: var(--dark-text);
    }
}