:root {
            --primary: #0056b3;
            --secondary: #17a2b8;
            --dark: #343a40;
            --light: #f8f9fa;
            --success: #28a745;
            --warning: #ffc107;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.7;
        }
        h1, h2, h3, h4 {
            font-weight: 600;
            color: var(--dark);
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary) 0%, #003d82 100%);
            color: white;
            padding: 100px 0;
        }
        .section-padding {
            padding: 80px 0;
        }
        .icon-box {
            width: 70px;
            height: 70px;
            border-radius: 12px;
            background: rgba(0, 86, 179, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            transition: transform 0.3s;
        }
        .feature-card:hover .icon-box {
            transform: translateY(-10px);
            background: rgba(0, 86, 179, 0.2);
        }
        .service-card {
            height: 100%;
            border: none;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .img-hover-zoom {
            overflow: hidden;
        }
        .img-hover-zoom img {
            transition: transform 0.5s ease;
        }
        .img-hover-zoom:hover img {
            transform: scale(1.05);
        }
        .stat-box {
            padding: 30px;
            border-radius: 10px;
            background: var(--light);
            text-align: center;
        }
        .friendlink {
            background: var(--light);
        }
        .flink {
            display: inline-block;
            padding: 8px 20px;
            margin: 5px;
            background: white;
            border-radius: 50px;
            border: 1px solid #eee;
            color: #555;
            text-decoration: none;
            transition: all 0.3s;
        }
        .flink:hover {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
        }
        .contact-info li {
            margin-bottom: 15px;
            display: flex;
            align-items: flex-start;
        }
        .contact-info i {
            margin-right: 15px;
            color: var(--primary);
            margin-top: 5px;
        }
        footer {
            background: var(--dark);
            color: rgba(255,255,255,0.8);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 60px 0;
                text-align: center;
            }
            .section-padding {
                padding: 50px 0;
            }
            .display-4 {
                font-size: 2.2rem;
            }
        }
        .timeline {
            position: relative;
            padding-left: 30px;
        }
        .timeline:before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--primary);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 30px;
        }
        .timeline-item:before {
            content: '';
            position: absolute;
            left: -34px;
            top: 5px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
        }