/* Product Introduction Page Styles */

.product-overview {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 40px;
    border-radius: 15px;
    margin: 30px 0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.product-overview h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 2rem;
    text-align: center;
}

.product-overview > p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #495057;
    text-align: center;
    margin-bottom: 40px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.feature-item {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.feature-item i {
    font-size: 2.5rem;
    color: #3498db;
    margin-bottom: 15px;
}

.feature-item h3 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.feature-item p {
    color: #6c757d;
    line-height: 1.6;
}

.main-tools-section {
    margin: 50px 0;
}

.main-tools-section h2 {
    color: #2c3e50;
    font-size: 2rem;
    margin-bottom: 20px;
    text-align: center;
}

.main-tools-section > p {
    font-size: 1.1rem;
    color: #495057;
    text-align: center;
    margin-bottom: 40px;
    line-height: 1.7;
}

.tools-showcase {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.tool-showcase-item {
    display: flex;
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    align-items: flex-start;
    gap: 25px;
}

.tool-showcase-item:hover {
    transform: translateY(-3px);
}

.tool-showcase-item:nth-child(even) {
    flex-direction: row-reverse;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

.tool-icon {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.tool-icon i {
    font-size: 2rem;
    color: white;
}

.tool-info {
    flex: 1;
}

.tool-info h3 {
    color: #2c3e50;
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.tool-info > p:first-of-type {
    color: #3498db;
    font-weight: 600;
    margin-bottom: 15px;
    font-size: 1rem;
}

.tool-info > p:nth-of-type(2) {
    color: #495057;
    line-height: 1.7;
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.tool-info ul {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 8px;
}

.tool-info ul li {
    color: #28a745;
    font-size: 0.9rem;
    padding: 2px 0;
}

.usage-guide-section {
    background: linear-gradient(135deg, #e8f5e8 0%, #d4edda 100%);
    padding: 40px;
    border-radius: 15px;
    margin: 40px 0;
}

.usage-guide-section h2 {
    color: #155724;
    text-align: center;
    margin-bottom: 20px;
    font-size: 2rem;
}

.usage-guide-section > p {
    text-align: center;
    color: #155724;
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.usage-scenarios {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.scenario-item {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.scenario-item h3 {
    color: #155724;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.scenario-item p {
    color: #495057;
    line-height: 1.6;
}

.technical-features-section {
    margin: 50px 0;
}

.technical-features-section h2 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 40px;
    font-size: 2rem;
}

.tech-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.tech-feature-item {
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
    padding: 30px;
    border-radius: 15px;
    border-left: 5px solid #e74c3c;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
}

.tech-feature-item:nth-child(2) {
    border-left-color: #f39c12;
}

.tech-feature-item:nth-child(3) {
    border-left-color: #2ecc71;
}

.tech-feature-item:nth-child(4) {
    border-left-color: #9b59b6;
}

.tech-feature-item h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.tech-feature-item p {
    color: #495057;
    line-height: 1.7;
}

.seo-benefits-section {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    padding: 40px;
    border-radius: 15px;
    margin: 40px 0;
}

.seo-benefits-section h2 {
    color: #0d47a1;
    text-align: center;
    margin-bottom: 20px;
    font-size: 2rem;
}

.seo-benefits-section > p {
    color: #1565c0;
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.seo-benefits {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.seo-benefits li {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    color: #495057;
    line-height: 1.6;
}

.seo-benefits li strong {
    color: #0d47a1;
    display: block;
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.contact-support-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 40px;
    border-radius: 15px;
    margin: 40px 0;
    text-align: center;
}

.contact-support-section h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 2rem;
}

.contact-info > p {
    color: #495057;
    font-size: 1.1rem;
    margin-bottom: 30px;
    line-height: 1.7;
}

.contact-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    text-align: left;
}

.contact-item {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-item i {
    font-size: 1.8rem;
    color: #3498db;
    margin-top: 5px;
}

.contact-content h3 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.contact-content p {
    color: #6c757d;
    line-height: 1.6;
    margin: 0;
}

.email-link {
    color: #3498db;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    display: block;
    margin-bottom: 10px;
    transition: color 0.3s ease;
}

.email-link:hover {
    color: #2980b9;
    text-decoration: underline;
}

/* 모바일 반응형 */
@media (max-width: 768px) {
    .product-overview, 
    .usage-guide-section, 
    .seo-benefits-section, 
    .contact-support-section {
        padding: 25px;
        margin: 20px 0;
    }
    
    .tool-showcase-item {
        flex-direction: column !important;
        text-align: center;
        padding: 25px;
    }
    
    .tool-showcase-item:nth-child(even) {
        flex-direction: column !important;
    }
    
    .tool-icon {
        align-self: center;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .usage-scenarios {
        grid-template-columns: 1fr;
    }
    
    .tech-features {
        grid-template-columns: 1fr;
    }
    
    .contact-details {
        grid-template-columns: 1fr;
    }
    
    .seo-benefits {
        grid-template-columns: 1fr;
    }
}

/* FAQ 섹션 스타일 */
.faq-section {
    background: linear-gradient(135deg, #f1f3f4 0%, #e8eaf6 100%);
    padding: 40px;
    border-radius: 15px;
    margin: 40px 0;
}

.faq-section h2 {
    color: #1a237e;
    text-align: center;
    margin-bottom: 40px;
    font-size: 2rem;
}

.faq-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.faq-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.faq-item h3 {
    color: #1a237e;
    margin-bottom: 15px;
    font-size: 1.2rem;
    line-height: 1.4;
    font-weight: 600;
}

.faq-item p {
    color: #424242;
    line-height: 1.7;
    margin: 0;
    font-size: 1rem;
}

@media (max-width: 768px) {
    .faq-section {
        padding: 25px;
        margin: 20px 0;
    }
    
    .faq-section h2 {
        font-size: 1.6rem;
    }
    
    .faq-item {
        padding: 20px;
    }
    
    .faq-item h3 {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .product-overview h2,
    .main-tools-section h2,
    .usage-guide-section h2,
    .technical-features-section h2,
    .seo-benefits-section h2,
    .contact-support-section h2 {
        font-size: 1.6rem;
    }
    
    .tool-info h3 {
        font-size: 1.3rem;
    }
    
    .tool-info ul {
        grid-template-columns: 1fr;
    }
}