:root {
            --primary-color: #1a237e;
            --secondary-color: #d32f2f;
            --accent-color: #ffab00;
            --light-bg: #f5f5f5;
            --dark-text: #212121;
            --light-text: #757575;
            --transition-speed: 0.3s;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--dark-text);
            line-height: 1.8;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary-color);
        }
        .nav-link {
            font-weight: 500;
            transition: color var(--transition-speed);
        }
        .nav-link:hover {
            color: var(--secondary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(26, 35, 126, 0.85), rgba(211, 47, 47, 0.8)), url('https://images.unsplash.com/photo-1575361204480-aadea25e6e68?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80') no-repeat center center/cover;
            color: white;
            padding: 100px 0;
        }
        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        .hero-subtitle {
            font-size: 1.2rem;
            margin-bottom: 30px;
            max-width: 800px;
        }
        .section-title {
            color: var(--primary-color);
            border-left: 5px solid var(--secondary-color);
            padding-left: 15px;
            margin-bottom: 40px;
            font-weight: 700;
        }
        .card {
            border: none;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: transform var(--transition-speed), box-shadow var(--transition-speed);
            margin-bottom: 20px;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .card-title {
            color: var(--primary-color);
            font-weight: 600;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border: none;
            padding: 10px 25px;
            border-radius: 5px;
            transition: background-color var(--transition-speed);
        }
        .btn-primary:hover {
            background-color: var(--secondary-color);
        }
        .live-badge {
            background-color: var(--secondary-color);
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { opacity: 1; }
            50% { opacity: 0.7; }
            100% { opacity: 1; }
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }
        .stat-item {
            background: var(--light-bg);
            padding: 20px;
            border-radius: 10px;
            text-align: center;
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        .flink {
            display: inline-block;
            margin: 10px 15px;
            padding: 10px 20px;
            background: var(--light-bg);
            border-radius: 5px;
            color: var(--dark-text);
            text-decoration: none;
            transition: all var(--transition-speed);
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: scale(1.05);
        }
        .friendlink {
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            padding: 40px 0;
        }
        footer {
            background-color: var(--primary-color);
            color: white;
            padding: 50px 0 20px;
        }
        footer a {
            color: #bbdefb;
            text-decoration: none;
            transition: color var(--transition-speed);
        }
        footer a:hover {
            color: var(--accent-color);
        }
        .img-hover-zoom {
            overflow: hidden;
            border-radius: 10px;
        }
        .img-hover-zoom img {
            transition: transform var(--transition-speed);
        }
        .img-hover-zoom:hover img {
            transform: scale(1.05);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
        }