:root {
            --primary-color: #1a5276;
            --secondary-color: #d35400;
            --accent-color: #28b463;
            --light-color: #f8f9fa;
            --dark-color: #2c3e50;
            --gray-color: #7f8c8d;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.6;
        }
        h1, h2, h3, h4, h5 {
            color: var(--dark-color);
            font-weight: 600;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(26, 82, 118, 0.85), rgba(44, 62, 80, 0.9)), url('https://images.unsplash.com/photo-1607082348824-0a96f2a4b9da?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 120px 0;
            margin-top: 76px;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 40px;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 70px;
            height: 3px;
            background: var(--secondary-color);
        }
        .text-center .section-title:after {
            left: 50%;
            transform: translateX(-50%);
        }
        .card {
            border: none;
            border-radius: 8px;
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .card-img-top {
            height: 200px;
            object-fit: cover;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 10px 25px;
            font-weight: 600;
            border-radius: 4px;
        }
        .btn-primary:hover {
            background-color: #154360;
            border-color: #154360;
        }
        .btn-secondary {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            padding: 10px 25px;
            font-weight: 600;
            border-radius: 4px;
        }
        .btn-secondary:hover {
            background-color: #ba4a00;
            border-color: #ba4a00;
        }
        .service-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        .process-step {
            position: relative;
            padding: 20px;
            text-align: center;
            background: var(--light-color);
            border-radius: 8px;
            height: 100%;
        }
        .process-step .step-number {
            position: absolute;
            top: -15px;
            left: -15px;
            width: 40px;
            height: 40px;
            background: var(--secondary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }
        .contact-info i {
            color: var(--primary-color);
            font-size: 1.2rem;
            margin-right: 10px;
            width: 24px;
        }
        .contact-info a {
            color: var(--dark-color);
            text-decoration: none;
        }
        .contact-info a:hover {
            color: var(--secondary-color);
        }
        .footer {
            background-color: var(--dark-color);
            color: white;
            padding: 60px 0 20px;
        }
        .footer a {
            color: #ddd;
            text-decoration: none;
        }
        .footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            margin-top: 40px;
            font-size: 0.9rem;
            color: #aaa;
        }
        .friendlink {
            background-color: #f8f9fa;
            padding: 40px 0;
        }
        .flink {
            display: inline-block;
            padding: 8px 20px;
            margin: 5px 10px;
            background: white;
            border: 1px solid #e0e0e0;
            border-radius: 4px;
            color: var(--dark-color);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
            transform: translateY(-2px);
        }
        .map-container {
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            height: 100%;
            min-height: 300px;
        }
        .product-img {
            height: 180px;
            object-fit: cover;
            border-radius: 4px;
        }
        .stats-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
            display: block;
        }
        .stats-label {
            font-size: 1rem;
            color: var(--gray-color);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .news-date {
            color: var(--secondary-color);
            font-weight: 600;
            font-size: 0.9rem;
        }
        .news-title {
            transition: color 0.3s ease;
        }
        .news-title:hover {
            color: var(--secondary-color);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 80px 0;
                margin-top: 56px;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }