:root {
            --primary-color: #003366; /* 深蓝色 */
            --accent-color: #FFB400;  /* 工业黄 */
            --text-color: #333;
            --light-bg: #f8f9fa;
        }

        body {
            font-family: 'Inter', sans-serif;
            margin: 0;
            padding: 0;
            color: var(--text-color);
            line-height: 1.6;
        }

        /* Hero Section */
        .hero {
            background: linear-gradient(rgba(0, 51, 102, 0.8), rgba(0, 51, 102, 0.8)), 
                        url('https://images.unsplash.com/photo-1586528116311-ad8dd3c8310d?auto=format&fit=crop&q=80&w=2000') center/cover;
            height: 300px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-align: center;
        }

        .hero h1 {
            font-size: 3rem;
            margin: 0;
            text-transform: uppercase;
            letter-spacing: 2px;
        }

        /* Contact Details Section */
        .contact-container {
            max-width: 1200px;
            margin: -50px auto 50px;
            padding: 0 20px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            position: relative;
            z-index: 10;
        }

        .contact-card {
            background: white;
            padding: 40px 30px;
            border-radius: 8px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            text-align: center;
            transition: transform 0.3s ease;
            border-top: 5px solid var(--accent-color);
        }

        .contact-card:hover {
            transform: translateY(-10px);
        }

        .contact-card i {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }

        .contact-card h3 {
            margin-bottom: 15px;
            color: var(--primary-color);
            font-size: 1.4rem;
        }

        .contact-card p, .contact-card a {
            color: #666;
            text-decoration: none;
            font-size: 1rem;
            display: block;
        }

        .contact-card a:hover {
            color: var(--accent-color);
        }

        /* Map Section */
        .map-section {
            width: 100%;
            height: 500px;
            background: #eee;
            margin-top: 50px;
            border-top: 1px solid #ddd;
        }

        iframe {
            width: 100%;
            height: 100%;
            border: 0;
        }

        /* Footer Accent */
        .footer-note {
            text-align: center;
            padding: 40px 20px;
            background: var(--light-bg);
        }

        @media (max-width: 768px) {
            .hero h1 { font-size: 2rem; }
            .contact-container { margin-top: 20px; }
        }