:root {
            --primary-blue: #0a3d62;
            --secondary-blue: #1e5799;
            --accent-teal: #079992;
            --light-bg: #f8f9fa;
            --dark-text: #2c3e50;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--dark-text);
            line-height: 1.8;
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-teal) 100%);
            color: white;
            padding: 8rem 0;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(255,255,255,0.05)"/></svg>');
            background-size: cover;
        }
        .nav-shadow {
            box-shadow: 0 4px 18px rgba(10, 61, 98, 0.1);
        }
        .section-title {
            color: var(--primary-blue);
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 2.5rem;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--accent-teal);
            border-radius: 2px;
        }
        .card-hover {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: none;
            border-radius: 12px;
            overflow: hidden;
            height: 100%;
        }
        .card-hover:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(10, 61, 98, 0.15) !important;
        }
        .service-icon {
            font-size: 3rem;
            color: var(--accent-teal);
            margin-bottom: 1.5rem;
        }
        .flink {
            display: inline-block;
            padding: 10px 20px;
            margin: 8px;
            background: var(--light-bg);
            border-radius: 50px;
            color: var(--primary-blue);
            text-decoration: none;
            transition: all 0.3s ease;
            border: 1px solid #dee2e6;
            font-weight: 500;
        }
        .flink:hover {
            background: var(--primary-blue);
            color: white;
            transform: scale(1.05);
            text-decoration: none;
        }
        footer {
            background: var(--primary-blue);
            color: #e9ecef;
        }
        footer a {
            color: #a3d5ff;
            text-decoration: none;
            transition: color 0.2s;
        }
        footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .btn-primary-custom {
            background: linear-gradient(to right, var(--secondary-blue), var(--accent-teal));
            border: none;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(7, 153, 146, 0.3);
        }
        .data-counter {
            font-size: 3rem;
            font-weight: 700;
            color: var(--accent-teal);
        }
        .sticky-nav {
            position: sticky;
            top: 0;
            z-index: 1020;
            backdrop-filter: blur(10px);
            background-color: rgba(255, 255, 255, 0.95);
        }
        .map-container {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        .team-img {
            width: 150px;
            height: 150px;
            object-fit: cover;
            border-radius: 50%;
            border: 5px solid white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 5rem 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .data-counter {
                font-size: 2.2rem;
            }
        }