:root {
            --primary-color: #0d47a1;
            --secondary-color: #1565c0;
            --accent-color: #ff9800;
            --light-blue: #e3f2fd;
            --dark-gray: #333333;
            --light-gray: #f8f9fa;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Noto Sans SC', sans-serif;
            line-height: 1.8;
            color: var(--dark-gray);
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--primary-color);
        }
        .section-header {
            position: relative;
            margin-bottom: 3rem;
            text-align: center;
        }
        .section-header h2 {
            display: inline-block;
            font-size: 2.5rem;
            padding-bottom: 1rem;
            position: relative;
        }
        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background-color: var(--accent-color);
            border-radius: 2px;
        }
        .section-header p {
            color: #666;
            max-width: 700px;
            margin: 0 auto;
        }
        .hero-section {
            background: linear-gradient(rgba(13, 71, 161, 0.85), rgba(13, 71, 161, 0.9)), url('https://images.unsplash.com/photo-1621905252507-b35492cc74b4?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 180px 0 120px;
            position: relative;
            overflow: hidden;
        }
        .hero-section h1 {
            font-size: 3.5rem;
            font-weight: 800;
            color: white;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }
        .hero-section .lead {
            font-size: 1.4rem;
            margin-bottom: 2rem;
            max-width: 800px;
        }
        .btn-primary-custom {
            background-color: var(--accent-color);
            border-color: var(--accent-color);
            color: white;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-primary-custom:hover {
            background-color: #e68900;
            border-color: #e68900;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }
        .feature-card {
            background-color: white;
            border-radius: 12px;
            padding: 30px;
            height: 100%;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
            border-top: 5px solid var(--primary-color);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
        }
        .feature-icon {
            width: 80px;
            height: 80px;
            background-color: var(--light-blue);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            color: var(--primary-color);
            font-size: 2rem;
        }
        .service-card {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
            height: 100%;
            transition: all 0.3s ease;
            background-color: white;
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
        }
        .service-img {
            height: 220px;
            overflow: hidden;
        }
        .service-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .service-card:hover .service-img img {
            transform: scale(1.05);
        }
        .service-content {
            padding: 25px;
        }
        .project-card {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
            height: 100%;
            transition: all 0.3s ease;
        }
        .project-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
        }
        .news-card {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
            height: 100%;
            background-color: white;
            transition: all 0.3s ease;
        }
        .news-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
        }
        .contact-info-box {
            background-color: white;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            height: 100%;
            text-align: center;
            transition: all 0.3s ease;
            border-left: 5px solid var(--primary-color);
        }
        .contact-info-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
        }
        .contact-icon {
            width: 70px;
            height: 70px;
            background-color: var(--light-blue);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: var(--primary-color);
            font-size: 1.8rem;
        }
        footer {
            background-color: #1a237e;
            color: white;
            padding-top: 60px;
        }
        .footer-links h5 {
            color: white;
            margin-bottom: 25px;
            font-size: 1.2rem;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-links h5::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background-color: var(--accent-color);
        }
        .footer-links ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-links ul li {
            margin-bottom: 12px;
        }
        .footer-links ul li a {
            color: #bbdefb;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        .footer-links ul li a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }
        .copyright {
            background-color: #0d153a;
            padding: 20px 0;
            margin-top: 40px;
            font-size: 0.9rem;
            color: #bbdefb;
            text-align: center;
        }
        .friendlink {
            background-color: var(--light-gray);
            padding: 60px 0;
        }
        .flink {
            display: inline-block;
            background-color: white;
            padding: 15px 25px;
            margin: 10px;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 500;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(13, 71, 161, 0.2);
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
            padding: 15px 0;
            transition: all 0.3s ease;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .navbar-brand span {
            color: var(--accent-color);
        }
        .nav-link {
            font-weight: 500;
            margin: 0 8px;
            color: var(--dark-gray) !important;
            transition: all 0.3s ease;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-color) !important;
        }
        .mobile-nav-toggler {
            border: none;
            font-size: 1.5rem;
            color: var(--primary-color);
        }
        @media (max-width: 992px) {
            .hero-section h1 {
                font-size: 2.8rem;
            }
            .hero-section {
                padding: 150px 0 100px;
            }
            .section-header h2 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.3rem;
            }
            .hero-section .lead {
                font-size: 1.2rem;
            }
            .section-header h2 {
                font-size: 2rem;
            }
            .feature-card, .service-card, .project-card, .news-card {
                margin-bottom: 30px;
            }
        }
        @media (max-width: 576px) {
            .hero-section h1 {
                font-size: 2rem;
            }
            .hero-section {
                padding: 120px 0 80px;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            font-size: 1.2rem;
            z-index: 999;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            opacity: 0;
            visibility: hidden;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background-color: var(--secondary-color);
            color: white;
            transform: translateY(-5px);
        }