:root {
            --primary-color: #1a3a5f;
            --secondary-color: #c9a96e;
            --accent-color: #d4af37;
            --light-bg: #f8f9fa;
            --dark-text: #333;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            color: var(--dark-text);
            line-height: 1.8;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            color: var(--primary-color);
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            padding: 1rem 0;
            transition: var(--transition);
        }
        .navbar-brand {
            font-weight: 800;
            color: var(--primary-color) !important;
            font-size: 1.8rem;
        }
        .nav-link {
            font-weight: 600;
            margin: 0 0.5rem;
            color: var(--primary-color) !important;
            position: relative;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: 0;
            left: 50%;
            background-color: var(--secondary-color);
            transition: var(--transition);
        }
        .nav-link:hover::after {
            width: 100%;
            left: 0;
        }
        .hero-section {
            background: linear-gradient(rgba(26, 58, 95, 0.85), rgba(26, 58, 95, 0.9)), url('https://images.unsplash.com/photo-1511578314322-379afb476865?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 8rem 0;
            min-height: 90vh;
            display: flex;
            align-items: center;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .section-padding {
            padding: 5rem 0;
        }
        .section-title {
            position: relative;
            margin-bottom: 3rem;
            text-align: center;
        }
        .section-title::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
        }
        .service-card {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            background: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .service-icon {
            font-size: 2.5rem;
            color: var(--secondary-color);
            margin-bottom: 1.5rem;
        }
        .portfolio-item {
            position: relative;
            overflow: hidden;
            border-radius: 10px;
            margin-bottom: 30px;
        }
        .portfolio-img {
            transition: var(--transition);
            height: 300px;
            object-fit: cover;
            width: 100%;
        }
        .portfolio-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(26, 58, 95, 0.85);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            opacity: 0;
            transition: var(--transition);
            padding: 20px;
            text-align: center;
            color: white;
        }
        .portfolio-item:hover .portfolio-overlay {
            opacity: 1;
        }
        .portfolio-item:hover .portfolio-img {
            transform: scale(1.05);
        }
        .team-card {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            transition: var(--transition);
            background: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .team-card:hover {
            transform: translateY(-5px);
        }
        .team-img {
            height: 280px;
            object-fit: cover;
        }
        .contact-info-box {
            background: var(--light-bg);
            padding: 2rem;
            border-radius: 10px;
            height: 100%;
            border-left: 4px solid var(--secondary-color);
        }
        .contact-icon {
            font-size: 1.8rem;
            color: var(--secondary-color);
            margin-bottom: 1rem;
        }
        .form-control {
            padding: 0.8rem 1rem;
            border: 1px solid #ddd;
            border-radius: 8px;
        }
        .form-control:focus {
            border-color: var(--secondary-color);
            box-shadow: 0 0 0 0.25rem rgba(201, 169, 110, 0.25);
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 0.8rem 2rem;
            font-weight: 600;
            border-radius: 8px;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: #142b47;
            border-color: #142b47;
            transform: translateY(-2px);
        }
        .btn-secondary {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            padding: 0.8rem 2rem;
            font-weight: 600;
            border-radius: 8px;
            transition: var(--transition);
        }
        .btn-secondary:hover {
            background-color: #b3975d;
            border-color: #b3975d;
            transform: translateY(-2px);
        }
        .footer {
            background-color: var(--primary-color);
            color: white;
            padding: 3rem 0 1.5rem;
        }
        .footer a {
            color: rgba(255,255,255,0.8);
            text-decoration: none;
            transition: var(--transition);
        }
        .footer a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        .social-links a {
            display: inline-block;
            width: 40px;
            height: 40px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            text-align: center;
            line-height: 40px;
            margin-right: 10px;
            transition: var(--transition);
        }
        .social-links a:hover {
            background: var(--secondary-color);
            transform: translateY(-3px);
        }
        .friendlink {
            background: var(--light-bg);
            padding: 2rem;
            border-radius: 10px;
        }
        .flink {
            display: inline-block;
            padding: 0.5rem 1rem;
            margin: 0.5rem;
            background: white;
            border-radius: 6px;
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
            border: 1px solid #eee;
        }
        .flink:hover {
            background: var(--secondary-color);
            color: white;
            transform: translateY(-2px);
        }
        .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;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            text-decoration: none;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background: var(--primary-color);
            color: white;
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .section-padding {
                padding: 3rem 0;
            }
            .navbar-nav {
                text-align: center;
                background: white;
                padding: 1rem;
                border-radius: 10px;
                margin-top: 1rem;
            }
        }