/* 产品详情页样式 */

.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 8rem 0 4rem;
    text-align: center;
    margin-top: 70px;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.3rem;
    opacity: 0.9;
}

.product-detail {
    padding: 5rem 0;
    background: white;
}

.product-detail-alt {
    background: var(--bg-light);
}

.product-header {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
}

.product-icon-large {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
    flex-shrink: 0;
}

.product-header-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.product-tagline {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.product-content {
    max-width: 900px;
    margin: 0 auto;
}

.product-description {
    margin-bottom: 3rem;
}

.product-description h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.product-description p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.features-section {
    margin-bottom: 3rem;
}

.features-section h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-box {
    background: white;
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-box .feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    margin-bottom: 1rem;
}

.feature-box h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.feature-box p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.highlights-section {
    margin-bottom: 3rem;
}

.highlights-section h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.highlights-list {
    list-style: none;
    background: white;
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-md);
}

.highlights-list li {
    padding: 1rem 0;
    font-size: 1.1rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.highlights-list li:last-child {
    border-bottom: none;
}

.highlights-list i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.use-cases-section {
    margin-bottom: 3rem;
}

.use-cases-section h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.use-case-item {
    background: white;
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

.use-case-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.use-case-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.use-case-item h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.use-case-item p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
}

.cta-section {
    text-align: center;
    padding: 2rem 0;
}

@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2rem;
    }

    .page-header p {
        font-size: 1.1rem;
    }

    .product-header {
        flex-direction: column;
        text-align: center;
    }

    .product-header-content h2 {
        font-size: 2rem;
    }

    .features-list {
        grid-template-columns: 1fr;
    }

    .use-cases-grid {
        grid-template-columns: 1fr;
    }
}