:root {
            --primary-color: #1a365d;
            --secondary-color: #2d7dd2;
            --accent-color: #e6b31e;
            --light-color: #f8f9fa;
            --dark-color: #343a40;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Noto Sans SC', sans-serif;
            color: #333;
            line-height: 1.8;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-family: 'Playfair Display', serif;
            font-weight: 700;
            color: var(--primary-color);
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .nav-link {
            font-weight: 500;
            margin: 0 0.5rem;
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover {
            color: var(--secondary-color) !important;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            background: var(--secondary-color);
            left: 0;
            bottom: 0;
            transition: var(--transition);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .hero-section {
            background: linear-gradient(rgba(26, 54, 93, 0.85), rgba(26, 54, 93, 0.9)), url('https://images.unsplash.com/photo-1497366754035-f200968a6e72?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 180px 0 120px;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }
        .hero-title {
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            color: white;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .hero-subtitle {
            font-size: 1.5rem;
            margin-bottom: 2.5rem;
            opacity: 0.9;
        }
        .btn-primary {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            padding: 12px 30px;
            font-weight: 500;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: #1a5fb4;
            border-color: #1a5fb4;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .section-title {
            position: relative;
            margin-bottom: 3rem;
            padding-bottom: 1rem;
        }
        .section-title::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background: var(--accent-color);
            bottom: 0;
            left: 0;
            border-radius: 2px;
        }
        .section-title.center::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .service-card {
            background: white;
            border-radius: 12px;
            padding: 2.5rem 2rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            height: 100%;
            transition: var(--transition);
            border: 1px solid rgba(0,0,0,0.05);
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
        }
        .service-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--secondary-color), #4dabf7);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: white;
            font-size: 2rem;
        }
        .case-study-card {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            transition: var(--transition);
            height: 100%;
        }
        .case-study-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.15);
        }
        .case-study-img {
            height: 250px;
            object-fit: cover;
            width: 100%;
        }
        .testimonial-card {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            height: 100%;
        }
        .client-logo {
            height: 60px;
            filter: grayscale(100%);
            opacity: 0.7;
            transition: var(--transition);
        }
        .client-logo:hover {
            filter: grayscale(0);
            opacity: 1;
        }
        .footer {
            background-color: var(--primary-color);
            color: rgba(255,255,255,0.8);
            padding-top: 4rem;
        }
        .footer h5 {
            color: white;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 0.8rem;
        }
        .footer h5::after {
            content: '';
            position: absolute;
            width: 40px;
            height: 3px;
            background: var(--accent-color);
            bottom: 0;
            left: 0;
        }
        .footer a {
            color: rgba(255,255,255,0.8);
            text-decoration: none;
            transition: var(--transition);
        }
        .footer a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            margin-right: 10px;
            transition: var(--transition);
        }
        .social-links a:hover {
            background: var(--secondary-color);
            transform: translateY(-3px);
        }
        .copyright {
            background-color: rgba(0,0,0,0.2);
            padding: 1.5rem 0;
            margin-top: 3rem;
        }
        .friendlink {
            display: inline-block;
            margin: 0.5rem 1rem;
            padding: 0.5rem 1rem;
            background: rgba(255,255,255,0.05);
            border-radius: 6px;
            transition: var(--transition);
        }
        .friendlink:hover {
            background: rgba(255,255,255,0.1);
            transform: translateY(-2px);
        }
        .flink {
            color: rgba(255,255,255,0.9);
            text-decoration: none;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--secondary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 999;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background: var(--primary-color);
            transform: translateY(-5px);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .hero-subtitle {
                font-size: 1.2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--secondary-color);
            margin-bottom: 0.5rem;
        }
        .team-member {
            text-align: center;
            margin-bottom: 2rem;
        }
        .team-img {
            width: 180px;
            height: 180px;
            border-radius: 50%;
            object-fit: cover;
            margin-bottom: 1rem;
            border: 5px solid white;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .timeline {
            position: relative;
            max-width: 1200px;
            margin: 0 auto;
        }
        .timeline::after {
            content: '';
            position: absolute;
            width: 6px;
            background-color: var(--secondary-color);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -3px;
        }
        .timeline-item {
            padding: 10px 40px;
            position: relative;
            width: 50%;
            box-sizing: border-box;
        }
        .timeline-item:nth-child(odd) {
            left: 0;
        }
        .timeline-item:nth-child(even) {
            left: 50%;
        }
        .timeline-content {
            padding: 20px 30px;
            background-color: white;
            position: relative;
            border-radius: 6px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }
        @media screen and (max-width: 768px) {
            .timeline::after {
                left: 31px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            .timeline-item:nth-child(even) {
                left: 0;
            }
        }