/* 案例页面样式 */

.cases-main {
    padding-top: calc(80px + var(--spacing-xl));
    min-height: 100vh;
}

.cases-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.cases-header h1 {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.cases-header p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 案例导航 */
.cases-nav {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-3xl);
    flex-wrap: wrap;
}

.case-nav-item {
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--background-secondary);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.case-nav-item:hover {
    background: var(--primary-color);
    color: white;
}

.case-nav-item.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* 案例内容 */
.cases-content {
    position: relative;
}

.case-section {
    display: none;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.case-section.active {
    display: grid;
}

.case-info h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.case-info p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
}

.case-details {
    margin-bottom: var(--spacing-xl);
}

.detail-item {
    display: flex;
    margin-bottom: var(--spacing-md);
    align-items: flex-start;
}

.detail-item strong {
    min-width: 100px;
    color: var(--text-primary);
    font-weight: 600;
}

.detail-item span {
    color: var(--text-secondary);
    flex: 1;
}

.case-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.case-preview {
    background: var(--background-secondary);
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    height: 500px;
}

.case-preview iframe {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 0.75rem;
}

/* 代码查看模态框 */
.code-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

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

.code-modal-content {
    background: white;
    border-radius: 0.75rem;
    width: 100%;
    max-width: 800px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.code-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.code-modal-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.code-modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    cursor: pointer;
    color: var(--text-secondary);
    padding: var(--spacing-xs);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-normal);
}

.code-modal-close:hover {
    background: var(--background-secondary);
}

.code-modal-body {
    flex: 1;
    overflow: auto;
    padding: var(--spacing-xl);
}

.code-modal-body pre {
    background: #f8f9fa;
    padding: var(--spacing-lg);
    border-radius: 0.5rem;
    overflow: auto;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

.code-modal-body code {
    color: #333;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .case-section {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .case-preview {
        height: 400px;
    }
}

@media (max-width: 768px) {
    .cases-main {
        padding-top: calc(80px + var(--spacing-lg));
    }
    
    .cases-header h1 {
        font-size: var(--font-size-3xl);
    }
    
    .cases-nav {
        gap: var(--spacing-sm);
    }
    
    .case-nav-item {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
    
    .case-info h2 {
        font-size: var(--font-size-2xl);
    }
    
    .case-info p {
        font-size: var(--font-size-base);
    }
    
    .detail-item {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .detail-item strong {
        min-width: auto;
    }
    
    .case-actions {
        flex-direction: column;
    }
    
    .case-actions .btn {
        text-align: center;
    }
    
    .case-preview {
        height: 300px;
    }
    
    .code-modal {
        padding: var(--spacing-md);
    }
    
    .code-modal-content {
        max-height: 90vh;
    }
    
    .code-modal-header,
    .code-modal-body {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .cases-nav {
        flex-direction: column;
        align-items: center;
    }
    
    .case-nav-item {
        width: 200px;
        text-align: center;
    }
    
    .case-preview {
        height: 250px;
    }
}