:root {
            --primary-color: #0056b3;
            --secondary-color: #1e7e34;
            --accent-color: #ffc107;
            --light-bg: #f8f9fa;
            --dark-text: #212529;
            --border-radius: 8px;
            --transition-speed: 0.3s;
        }
        body {
            font-family: "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
            color: var(--dark-text);
            line-height: 1.8;
            overflow-x: hidden;
        }
        .navbar {
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
            background-color: rgba(255, 255, 255, 0.98);
            transition: all var(--transition-speed);
            padding-top: 0.8rem;
            padding-bottom: 0.8rem;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.6rem;
            color: var(--primary-color) !important;
        }
        .nav-link {
            font-weight: 500;
            margin: 0 0.3rem;
            color: var(--dark-text) !important;
            position: relative;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-color) !important;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: 0;
            left: 50%;
            background-color: var(--primary-color);
            transition: all var(--transition-speed);
            transform: translateX(-50%);
        }
        .nav-link:hover::after, .nav-link.active::after {
            width: 80%;
        }
        .hero-section {
            background: linear-gradient(135deg, rgba(0, 86, 179, 0.9) 0%, rgba(30, 126, 52, 0.85) 100%), url('https://images.unsplash.com/photo-1551288049-bebda4e38f71?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80') no-repeat center center/cover;
            color: white;
            padding: 8rem 0 6rem;
            clip-path: polygon(0 0, 100% 0, 100% 90%, 0 100%);
            margin-bottom: 4rem;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
        }
        .hero-subtitle {
            font-size: 1.4rem;
            margin-bottom: 2.5rem;
            opacity: 0.9;
        }
        .btn-primary-custom {
            background-color: var(--accent-color);
            border: none;
            color: var(--dark-text);
            font-weight: 600;
            padding: 0.85rem 2.2rem;
            border-radius: var(--border-radius);
            transition: all var(--transition-speed);
            box-shadow: 0 4px 12px rgba(255, 193, 7, 0.3);
        }
        .btn-primary-custom:hover {
            background-color: #e0a800;
            transform: translateY(-3px);
            box-shadow: 0 6px 18px rgba(255, 193, 7, 0.4);
        }
        .section-title {
            color: var(--primary-color);
            font-weight: 700;
            margin-bottom: 1.2rem;
            position: relative;
            display: inline-block;
        }
        .section-title::after {
            content: '';
            position: absolute;
            width: 60%;
            height: 4px;
            background-color: var(--accent-color);
            bottom: -10px;
            left: 0;
            border-radius: 2px;
        }
        .service-card {
            border: none;
            border-radius: var(--border-radius);
            overflow: hidden;
            transition: all var(--transition-speed);
            height: 100%;
            background-color: white;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }
        .service-icon {
            font-size: 2.8rem;
            color: var(--primary-color);
            margin-bottom: 1.2rem;
        }
        .stats-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-color);
            line-height: 1;
        }
        .stats-text {
            font-size: 1.1rem;
            color: #666;
        }
        .process-step {
            text-align: center;
            padding: 2rem 1.5rem;
            border-radius: var(--border-radius);
            background-color: var(--light-bg);
            transition: all var(--transition-speed);
        }
        .process-step:hover {
            background-color: rgba(0, 86, 179, 0.05);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            background-color: var(--primary-color);
            color: white;
            font-size: 1.8rem;
            font-weight: bold;
            border-radius: 50%;
            margin-bottom: 1.5rem;
        }
        .testimonial-card {
            border-left: 4px solid var(--accent-color);
            padding: 2rem;
            background-color: white;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .flink {
            display: inline-block;
            padding: 0.5rem 1.2rem;
            margin: 0.5rem;
            background-color: var(--light-bg);
            border-radius: 30px;
            color: var(--dark-text);
            text-decoration: none;
            transition: all var(--transition-speed);
            font-weight: 500;
            border: 1px solid #dee2e6;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-2px);
            border-color: var(--primary-color);
        }
        .contact-info li {
            margin-bottom: 1rem;
        }
        .contact-info i {
            color: var(--primary-color);
            width: 1.8rem;
        }
        footer {
            background-color: #1a1a1a;
            color: #ccc;
            padding-top: 4rem;
            padding-bottom: 2rem;
        }
        footer a {
            color: #ccc;
            text-decoration: none;
            transition: color var(--transition-speed);
        }
        footer a:hover {
            color: var(--accent-color);
        }
        .footer-bottom {
            border-top: 1px solid #444;
            padding-top: 1.5rem;
            margin-top: 3rem;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .hero-subtitle {
                font-size: 1.2rem;
            }
            .navbar-nav {
                text-align: center;
                padding-top: 1rem;
            }
            .stats-number {
                font-size: 2.2rem;
            }
        }