:root {
            --primary-color: #0a6c74;
            --secondary-color: #f8b500;
            --dark-color: #1a2b3c;
            --light-color: #f8f9fa;
            --text-color: #333;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--text-color);
            line-height: 1.6;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--dark-color);
        }
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
            position: relative;
        }
        .section-header h2 {
            display: inline-block;
            font-size: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 1rem;
        }
        .section-header h2::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
        }
        .section-header p {
            color: #666;
            max-width: 700px;
            margin: 0 auto;
        }
        .btn-primary-custom {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            color: white;
            padding: 0.75rem 2rem;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary-custom:hover {
            background-color: #09545a;
            border-color: #09545a;
            transform: translateY(-3px);
            box-shadow: var(--shadow);
            color: white;
        }
        .btn-secondary-custom {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            color: var(--dark-color);
            padding: 0.75rem 2rem;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-secondary-custom:hover {
            background-color: #e0a500;
            border-color: #e0a500;
            transform: translateY(-3px);
            box-shadow: var(--shadow);
            color: var(--dark-color);
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.98);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            padding: 1rem 0;
            transition: var(--transition);
        }
        .navbar.scrolled {
            padding: 0.7rem 0;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .navbar-nav .nav-link {
            font-weight: 600;
            margin: 0 0.5rem;
            color: var(--dark-color) !important;
            transition: var(--transition);
        }
        .navbar-nav .nav-link:hover, .navbar-nav .nav-link.active {
            color: var(--primary-color) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(10, 108, 116, 0.85), rgba(26, 43, 60, 0.9)), url('https://images.unsplash.com/photo-1509391366360-2e959784a276?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') no-repeat center center;
            background-size: cover;
            color: white;
            padding: 10rem 0 8rem;
            position: relative;
        }
        .hero-section h1 {
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            color: white;
            font-weight: 800;
        }
        .hero-section p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 2rem;
        }
        .feature-card {
            background: white;
            border-radius: 10px;
            padding: 2.5rem 2rem;
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
            border-top: 5px solid transparent;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            border-top-color: var(--secondary-color);
        }
        .feature-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
        }
        .stats-section {
            background-color: var(--primary-color);
            color: white;
            padding: 5rem 0;
        }
        .stat-number {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 0.5rem;
        }
        .stat-label {
            font-size: 1.2rem;
            opacity: 0.9;
        }
        .service-card {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
            background: white;
        }
        .service-card:hover {
            transform: translateY(-10px);
        }
        .service-img {
            height: 220px;
            object-fit: cover;
            width: 100%;
        }
        .service-content {
            padding: 1.5rem;
        }
        .project-card {
            position: relative;
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 1.5rem;
            box-shadow: var(--shadow);
        }
        .project-img {
            height: 300px;
            object-fit: cover;
            width: 100%;
            transition: var(--transition);
        }
        .project-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(to top, rgba(10, 108, 116, 0.9), transparent);
            color: white;
            padding: 2rem;
            transform: translateY(20px);
            opacity: 0;
            transition: var(--transition);
        }
        .project-card:hover .project-overlay {
            transform: translateY(0);
            opacity: 1;
        }
        .project-card:hover .project-img {
            transform: scale(1.05);
        }
        .news-card {
            border: 1px solid #eee;
            border-radius: 10px;
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }
        .news-card:hover {
            box-shadow: var(--shadow);
        }
        .news-date {
            background-color: var(--primary-color);
            color: white;
            padding: 0.5rem 1rem;
            display: inline-block;
            border-radius: 5px;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        .testimonial-card {
            background-color: white;
            border-radius: 10px;
            padding: 2rem;
            box-shadow: var(--shadow);
            position: relative;
        }
        .testimonial-card::before {
            content: '\201C';
            font-size: 5rem;
            color: var(--primary-color);
            opacity: 0.2;
            position: absolute;
            top: -1rem;
            left: 1rem;
        }
        .contact-info-box {
            background-color: white;
            border-radius: 10px;
            padding: 2rem;
            box-shadow: var(--shadow);
            text-align: center;
            margin-bottom: 1.5rem;
            transition: var(--transition);
        }
        .contact-info-box:hover {
            transform: translateY(-5px);
        }
        .contact-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        footer {
            background-color: var(--dark-color);
            color: #ddd;
            padding: 4rem 0 2rem;
        }
        footer a {
            color: #ddd;
            text-decoration: none;
            transition: var(--transition);
        }
        footer a:hover {
            color: var(--secondary-color);
        }
        .footer-links h5 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-links li {
            margin-bottom: 0.7rem;
        }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 2rem;
            margin-top: 3rem;
            text-align: center;
        }
        .friendlink {
            background-color: #f8f9fa;
            border-radius: 8px;
            padding: 3rem 0;
            margin: 3rem 0;
        }
        .flink {
            display: inline-block;
            background-color: white;
            color: var(--dark-color);
            padding: 0.5rem 1.5rem;
            margin: 0.5rem;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
            transition: var(--transition);
            border: 1px solid #eee;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        .schema-markup {
            display: none;
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .hero-section {
                padding: 7rem 0 5rem;
            }
            .section-header h2 {
                font-size: 2rem;
            }
            .stat-number {
                font-size: 2.5rem;
            }
        }