button.tab-button span {
    font-weight: 800;
    font-size: 20px;
}
    .page-header {
        text-align: center;
    }
    
    .page-title {
        font-size: 3.5rem;
        font-weight: 700;
        color: #2c3e50;
        margin-bottom: 20px;
        position: relative;
    }
    
    .page-title::after {
        content: '';
        position: absolute;
        bottom: -15px;
        left: 50%;
        transform: translateX(-50%);
        width: 100px;
        height: 5px;
        background: linear-gradient(90deg, #3498db, #2980b9);
        border-radius: 3px;
    }
    
    .page-subtitle {
        font-size: 1.5rem;
        color: #7f8c8d;
        font-weight: 300;
    }
    
    .tabs-container {
        background: white;
        border-radius: 20px;
        box-shadow: 0 15px 35px rgba(0,0,0,0.1);
        overflow: hidden;
        margin-bottom: 40px;
    }
    
    .tabs-nav {
        display: flex;
        background: #f8f9fa;
        border-bottom: 1px solid #e9ecef;
    }
    
    .tab-button {
        flex: 1;
        padding: 30px 25px;
        background: none;
        border: none;
        font-size: 1.4rem;
        font-weight: 600;
        color: #6c757d;
        cursor: pointer;
        transition: all 0.3s ease;
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 12px;
    }
    
    .tab-button.active {
        color: #2c3e50;
        background: white;
    }
    
    .tab-button.active::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: var(--tab-color);
    }
    
    .tab-button:hover:not(.active) {
        background: #f1f3f4;
        color: #495057;
    }
    
    .tab-button.interior {
        --tab-color: #e74c3c;
    }
    .tab-button.interior span{
		font-size: 2rem;
	}
    .tab-button.audio {
        --tab-color: #f39c12;
    }
    
    .tab-button.form {
        --tab-color: #27ae60;
    }
    
    .tab-icon {
        font-size: 1.6rem;
    }
    
    .tab-content {
        display: none;
        padding: 50px;
        animation: fadeIn 0.5s ease;
    }
    
    .tab-content.active {
        display: block;
    }
    
    @keyframes fadeIn {
        from { opacity: 0; transform: translateY(10px); }
        to { opacity: 1; transform: translateY(0); }
    }
    
    .content-header {
        text-align: center;
        margin-bottom: 40px;
    }
    
    .content-title {
        font-size: 3rem;
        font-weight: 700;
        color: #2c3e50;
        margin-bottom: 20px;
    }
    
    .content-subtitle {
        font-size: 1.6rem;
        color: #7f8c8d;
        margin-bottom: 25px;
    }
    
    .content-description {
        font-size: 1.3rem;
        color: #6c757d;
        line-height: 1.7;
        max-width: 900px;
        margin: 0 auto;
    }
    
    .content-body {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 50px;
        margin-top: 50px;
    }
    
    .features-section h3 {
        font-size: 2.2rem;
        color: #2c3e50;
        margin-bottom: 30px;
        font-weight: 600;
    }
    
    .feature-grid {
        display: grid;
        gap: 20px;
    }
    
    .feature-item {
        padding: 20px;
        background: #f8f9fa;
        border-radius: 15px;
        border-left: 4px solid var(--feature-color);
        transition: all 0.3s ease;
    }
    
    .feature-item:hover {
        background: #e9ecef;
        transform: translateX(5px);
    }
    
    .feature-title {
        font-weight: 600;
        color: #2c3e50;
        margin-bottom: 10px;
        font-size: 1.3rem;
    }
    
    .feature-desc {
        color: #6c757d;
        font-size: 1.1rem;
        line-height: 1.6;
    }
    
    .details-section h3 {
        font-size: 2.2rem;
        color: #2c3e50;
        margin-bottom: 30px;
        font-weight: 600;
    }
    
    .details-content {
        color: #495057;
        line-height: 1.8;
        font-size: 1.2rem;
    }
    
    .details-content p {
        margin-bottom: 20px;
    }
    
    .details-list {
        list-style: none;
        padding: 0;
    }
    
    .details-list li {
        padding: 12px 0;
        border-bottom: 1px solid #e9ecef;
        position: relative;
        padding-left: 30px;
    }
    
    .details-list li::before {
        content: '→';
        position: absolute;
        left: 0;
        color: var(--feature-color);
        font-weight: bold;
        font-size: 1.2rem;
    }
    
    .details-list li:last-child {
        border-bottom: none;
    }
    
    .interior-content {
        --feature-color: #e74c3c;
    }
    
    .audio-content {
        --feature-color: #f39c12;
    }
    
    .form-content {
        --feature-color: #27ae60;
    }
    
    .cta-section {
        text-align: center;
        background: white;
        border-radius: 20px;
        padding: 50px 30px;
        box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    }
    
    .cta-title {
        font-size: 2.2rem;
        font-weight: 600;
        color: #2c3e50;
        margin-bottom: 20px;
    }
    
    .cta-description {
        font-size: 1.1rem;
        color: #7f8c8d;
        margin-bottom: 30px;
        max-width: 600px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .btn-primary {
        background: linear-gradient(135deg, #3498db, #2980b9);
        color: white;
        padding: 15px 40px;
        border-radius: 50px;
        text-decoration: none;
        font-weight: 600;
        display: inline-block;
        transition: all 0.3s ease;
        border: none;
        font-size: 1.1rem;
    }
    
    .btn-primary:hover {
        background: linear-gradient(135deg, #2980b9, #1f4e79);
        transform: translateY(-2px);
        box-shadow: 0 10px 25px rgba(52, 152, 219, 0.3);
        color: white;
        text-decoration: none;
    }
    
    @media (max-width: 992px) {
        .content-body {
            grid-template-columns: 1fr;
            gap: 40px;
        }
        
        .page-title {
            font-size: 3rem;
        }
        
        .content-title {
            font-size: 2.5rem;
        }
        
        .tab-content {
            padding: 40px 30px;
        }
    }
    
    @media (max-width: 768px) {
        .tabs-nav {
            flex-direction: column;
        }
        
        .tab-content {
            padding: 30px 20px;
        }
        
        .content-body {
            grid-template-columns: 1fr;
            gap: 30px;
        }
        
        .page-title {
            font-size: 2.5rem;
        }
        
        .page-subtitle {
            font-size: 1.3rem;
        }
        
        .content-title {
            font-size: 2.2rem;
        }
        
        .content-subtitle {
            font-size: 1.4rem;
        }
        
        .content-description {
            font-size: 1.1rem;
        }
        
        .tab-button {
            padding: 25px 20px;
            font-size: 1.2rem;
        }
        
        .tab-icon {
            font-size: 1.4rem;
        }
        
        .features-section h3,
        .details-section h3 {
            font-size: 1.8rem;
        }
        
        .feature-title {
            font-size: 1.2rem;
        }
        
        .feature-desc {
            font-size: 1rem;
        }
        
        .details-content {
            font-size: 1.1rem;
        }
    }
    
    @media (max-width: 480px) {
        .main {
            padding: 20px 0;
        }
        
        .container {
            padding: 0 15px;
        }
        
        .page-header {
            margin-bottom: 40px;
        }
        
        .page-title {
            font-size: 2rem;
        }
        
        .page-subtitle {
            font-size: 1.1rem;
        }
        
        .content-title {
            font-size: 1.8rem;
        }
        
        .content-subtitle {
            font-size: 1.2rem;
        }
        
        .content-description {
            font-size: 1rem;
        }
        
        .tab-button {
            padding: 20px 15px;
            font-size: 1.1rem;
            flex-direction: column;
            gap: 8px;
        }
        
        .tab-content {
            padding: 20px 15px;
        }
        
        .feature-item {
            padding: 15px;
        }
        
        .features-section h3,
        .details-section h3 {
            font-size: 1.6rem;
        }
    }