:root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #fbbf24;
            --dark-color: #0f172a;
            --light-color: #f8fafc;
            --gray-color: #64748b;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.6;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            color: var(--dark-color);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color);
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(15, 23, 42, 0.9), rgba(30, 58, 138, 0.9)), url('https://images.unsplash.com/photo-1575361204480-aadea25e6e68?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;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 3rem;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
        }
        .section-title.center:after {
            left: 50%;
            transform: translateX(-50%);
        }
        .feature-card {
            border-radius: 12px;
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
            border: 1px solid #e2e8f0;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }
        .feature-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: white;
            font-size: 1.8rem;
        }
        .stat-card {
            background: linear-gradient(135deg, var(--primary-color), #3b82f6);
            color: white;
            padding: 2rem;
            border-radius: 12px;
            text-align: center;
            transition: transform 0.3s ease;
        }
        .stat-card:hover {
            transform: scale(1.05);
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 0.5rem;
        }
        .news-card {
            border: 1px solid #e2e8f0;
            border-radius: 12px;
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
        }
        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        .news-img {
            height: 220px;
            object-fit: cover;
            width: 100%;
        }
        .news-date {
            color: var(--gray-color);
            font-size: 0.9rem;
        }
        .contact-info {
            background: var(--light-color);
            padding: 2rem;
            border-radius: 12px;
            height: 100%;
        }
        .contact-icon {
            width: 50px;
            height: 50px;
            background: var(--primary-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            margin-right: 1rem;
        }
        .friendlink {
            background: #f8fafc;
            padding: 4rem 0;
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 0.8rem 1.5rem;
            border-radius: 50px;
            margin: 0.5rem;
            color: var(--dark-color);
            text-decoration: none;
            border: 1px solid #e2e8f0;
            transition: all 0.3s ease;
            font-weight: 500;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
            transform: translateY(-3px);
        }
        .footer {
            background: var(--dark-color);
            color: white;
            padding: 4rem 0 2rem;
        }
        .footer-links a {
            color: #cbd5e1;
            text-decoration: none;
            display: block;
            margin-bottom: 0.5rem;
            transition: color 0.3s ease;
        }
        .footer-links a:hover {
            color: white;
        }
        .copyright {
            border-top: 1px solid #334155;
            padding-top: 2rem;
            margin-top: 2rem;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        .btn-primary-custom {
            background: linear-gradient(135deg, var(--primary-color), #3b82f6);
            border: none;
            padding: 0.8rem 2rem;
            font-weight: 600;
            border-radius: 50px;
            transition: all 0.3s ease;
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(30, 58, 138, 0.2);
        }
        .btn-secondary-custom {
            background: var(--secondary-color);
            border: none;
            padding: 0.8rem 2rem;
            font-weight: 600;
            border-radius: 50px;
            color: white;
            transition: all 0.3s ease;
        }
        .btn-secondary-custom:hover {
            background: #b91c1c;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(220, 38, 38, 0.2);
        }
        .animate-on-scroll {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        .animate-on-scroll.animated {
            opacity: 1;
            transform: translateY(0);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .hero-section {
                padding: 80px 0;
                margin-top: 66px;
            }
            .stat-number {
                font-size: 2.5rem;
            }
        }