:root {
            --primary-color: #0066cc;
            --secondary-color: #00a859;
            --accent-color: #ff6b35;
            --light-bg: #f8f9fa;
            --dark-text: #333;
        }
        body {
            font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
            color: var(--dark-text);
            line-height: 1.7;
        }
        .navbar-brand {
            font-weight: bold;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .nav-link {
            font-weight: 500;
            transition: color 0.3s;
        }
        .nav-link:hover {
            color: var(--accent-color) !important;
        }
        .hero-section {
            background: linear-gradient(135deg, #0066cc 0%, #00a859 100%);
            color: white;
            padding: 100px 0;
            text-align: center;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .hero-subtitle {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 30px;
        }
        .btn-primary-custom {
            background-color: var(--accent-color);
            border: none;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-primary-custom:hover {
            background-color: #e05a2b;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }
        .section-title {
            text-align: center;
            margin-bottom: 50px;
            color: var(--primary-color);
            font-weight: 700;
            position: relative;
        }
        .section-title::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
        }
        .feature-card {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            transition: transform 0.3s, box-shadow 0.3s;
            height: 100%;
            background: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .feature-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        .news-card {
            border-left: 5px solid var(--secondary-color);
            padding-left: 20px;
            margin-bottom: 30px;
            transition: border-color 0.3s;
        }
        .news-card:hover {
            border-left-color: var(--accent-color);
        }
        .contact-info li {
            margin-bottom: 15px;
            font-size: 1.1rem;
        }
        .contact-icon {
            color: var(--primary-color);
            margin-right: 10px;
            width: 24px;
        }
        .friendlink a.flink {
            display: inline-block;
            padding: 8px 20px;
            margin: 5px 10px;
            background: var(--light-bg);
            border-radius: 20px;
            text-decoration: none;
            color: var(--dark-text);
            transition: all 0.3s;
            border: 1px solid #ddd;
        }
        .friendlink a.flink:hover {
            background: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
        }
        footer {
            background: #222;
            color: #ddd;
            padding-top: 40px;
        }
        .footer-links a {
            color: #bbb;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: white;
        }
        .responsive-img {
            width: 100%;
            height: auto;
            border-radius: 10px;
            object-fit: cover;
        }
        .highlight-text {
            color: var(--primary-color);
            font-weight: bold;
        }
        .timeline {
            position: relative;
            padding-left: 30px;
            border-left: 3px solid var(--secondary-color);
            margin-left: 20px;
        }
        .timeline-item {
            margin-bottom: 30px;
            position: relative;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -36px;
            top: 5px;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background: var(--accent-color);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .feature-card {
                margin-bottom: 20px;
            }
        }