:root {
            --primary-color: #1a237e;
            --secondary-color: #ff5722;
            --accent-color: #4caf50;
            --dark-color: #121212;
            --light-color: #f5f5f7;
            --gray-color: #757575;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Roboto', sans-serif;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
            background-color: #fff;
        }
        h1, h2, h3, h4, h5, h6 {
            font-family: 'Montserrat', sans-serif;
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--dark-color);
        }
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-header h2 {
            font-size: 2.5rem;
            position: relative;
            display: inline-block;
            padding-bottom: 1rem;
        }
        .section-header h2:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
        }
        .section-header p {
            color: var(--gray-color);
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto;
        }
        .navbar {
            background-color: rgba(26, 35, 126, 0.95);
            padding: 1rem 0;
            transition: var(--transition);
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: white !important;
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.9) !important;
            font-weight: 500;
            margin: 0 0.5rem;
            transition: var(--transition);
        }
        .navbar-nav .nav-link:hover {
            color: var(--secondary-color) !important;
        }
        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.9%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .hero-section {
            background: linear-gradient(rgba(18, 18, 18, 0.85), rgba(18, 18, 18, 0.9)), url('https://images.unsplash.com/photo-1550745165-9bc0b252726f?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            color: white;
            padding: 10rem 0 8rem;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }
        .hero-content h1 {
            font-size: 3.5rem;
            color: white;
            margin-bottom: 1.5rem;
        }
        .hero-content p {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            max-width: 700px;
        }
        .btn-primary-custom {
            background-color: var(--secondary-color);
            border: none;
            padding: 0.8rem 2.5rem;
            font-weight: 600;
            border-radius: 4px;
            transition: var(--transition);
        }
        .btn-primary-custom:hover {
            background-color: #e64a19;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }
        .about-section {
            padding: 6rem 0;
            background-color: var(--light-color);
        }
        .about-image {
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        .about-image img {
            width: 100%;
            height: auto;
            transition: var(--transition);
        }
        .about-image img:hover {
            transform: scale(1.03);
        }
        .about-content {
            padding-left: 2rem;
        }
        .about-content h3 {
            font-size: 2.2rem;
            margin-bottom: 1.5rem;
        }
        .feature-list {
            list-style: none;
            padding-left: 0;
        }
        .feature-list li {
            margin-bottom: 1rem;
            display: flex;
            align-items: flex-start;
        }
        .feature-list i {
            color: var(--accent-color);
            margin-right: 1rem;
            margin-top: 0.3rem;
            font-size: 1.2rem;
        }
        .services-section {
            padding: 6rem 0;
        }
        .service-card {
            background: white;
            border-radius: 8px;
            padding: 2.5rem 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            height: 100%;
            text-align: center;
            border-top: 4px solid transparent;
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
            border-top-color: var(--secondary-color);
        }
        .service-icon {
            width: 80px;
            height: 80px;
            background-color: rgba(26, 35, 126, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
        }
        .service-icon i {
            font-size: 2.5rem;
            color: var(--primary-color);
        }
        .service-card h4 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }
        .products-section {
            padding: 6rem 0;
            background-color: var(--light-color);
        }
        .product-card {
            background: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            margin-bottom: 2rem;
            height: 100%;
        }
        .product-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
        }
        .product-img {
            height: 220px;
            overflow: hidden;
        }
        .product-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .product-card:hover .product-img img {
            transform: scale(1.05);
        }
        .product-info {
            padding: 1.5rem;
        }
        .product-info h4 {
            font-size: 1.3rem;
            margin-bottom: 0.8rem;
        }
        .news-section {
            padding: 6rem 0;
        }
        .news-card {
            background: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            height: 100%;
        }
        .news-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
        }
        .news-date {
            background-color: var(--primary-color);
            color: white;
            padding: 0.8rem 1.5rem;
            display: inline-block;
            position: absolute;
            top: 1rem;
            left: 1rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .news-img {
            height: 220px;
            overflow: hidden;
            position: relative;
        }
        .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-content {
            padding: 1.8rem;
        }
        .news-content h4 {
            font-size: 1.3rem;
            margin-bottom: 0.8rem;
        }
        .contact-section {
            padding: 6rem 0;
            background-color: var(--light-color);
        }
        .contact-info {
            background-color: white;
            padding: 2.5rem;
            border-radius: 8px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            height: 100%;
        }
        .contact-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 2rem;
        }
        .contact-icon {
            width: 50px;
            height: 50px;
            background-color: rgba(26, 35, 126, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1.5rem;
            flex-shrink: 0;
        }
        .contact-icon i {
            font-size: 1.5rem;
            color: var(--primary-color);
        }
        .contact-form {
            background-color: white;
            padding: 2.5rem;
            border-radius: 8px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
        }
        .form-control {
            padding: 0.8rem 1rem;
            border-radius: 4px;
            border: 1px solid #ddd;
            margin-bottom: 1.5rem;
        }
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(26, 35, 126, 0.25);
        }
        .footer {
            background-color: var(--dark-color);
            color: rgba(255, 255, 255, 0.8);
            padding: 4rem 0 2rem;
        }
        .footer h5 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
            padding-left: 0;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        .social-links {
            display: flex;
            gap: 1rem;
        }
        .social-links a {
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            transition: var(--transition);
        }
        .social-links a:hover {
            background-color: var(--secondary-color);
            transform: translateY(-3px);
        }
        .friendlink-section {
            background-color: rgba(255, 255, 255, 0.05);
            padding: 2rem 0;
            margin-top: 3rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .friendlink-section h5 {
            text-align: center;
            margin-bottom: 1.5rem;
        }
        .friendlink-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.5rem;
            list-style: none;
            padding-left: 0;
        }
        .flink {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: var(--transition);
            padding: 0.5rem 1rem;
            border-radius: 4px;
            background-color: rgba(255, 255, 255, 0.05);
        }
        .flink:hover {
            color: var(--secondary-color);
            background-color: rgba(255, 255, 255, 0.1);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .hero-content h1 {
                font-size: 2.8rem;
            }
            .about-content {
                padding-left: 0;
                margin-top: 3rem;
            }
            .section-header h2 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .hero-content h1 {
                font-size: 2.3rem;
            }
            .hero-section {
                padding: 8rem 0 6rem;
            }
            .section-header h2 {
                font-size: 2rem;
            }
            .contact-info {
                margin-bottom: 3rem;
            }
        }
        @media (max-width: 576px) {
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-content p {
                font-size: 1rem;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
            .friendlink-list {
                flex-direction: column;
                align-items: center;
                gap: 1rem;
            }
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--secondary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            text-decoration: none;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 999;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background-color: var(--primary-color);
            transform: translateY(-5px);
        }