:root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #f59e0b;
            --light-bg: #f8fafc;
            --dark-text: #1f2937;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--dark-text);
            line-height: 1.8;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary-color) 0%, #2563eb 100%);
            color: white;
            padding: 6rem 0;
            position: relative;
            overflow: hidden;
        }
        .hero-section h1 {
            font-size: 3.5rem;
            font-weight: 900;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .section-title {
            border-left: 5px solid var(--secondary-color);
            padding-left: 15px;
            margin-bottom: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        .card-hover {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: none;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .card-hover:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .btn-custom {
            background-color: var(--secondary-color);
            color: white;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s;
            border: none;
        }
        .btn-custom:hover {
            background-color: #b91c1c;
            transform: scale(1.05);
        }
        .live-badge {
            animation: pulse 2s infinite;
            background-color: var(--secondary-color);
        }
        @keyframes pulse {
            0% { opacity: 1; }
            50% { opacity: 0.7; }
            100% { opacity: 1; }
        }
        .stats-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-color);
        }
        .friendlink a.flink {
            background: var(--light-bg);
            padding: 10px 20px;
            border-radius: 8px;
            display: inline-block;
            margin: 5px;
            color: var(--dark-text);
            text-decoration: none;
            border: 1px solid #ddd;
            transition: all 0.3s;
        }
        .friendlink a.flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        footer {
            background-color: #0f172a;
            color: #cbd5e1;
        }
        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
        }
        .footer-links a:hover {
            color: white;
            text-decoration: underline;
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .stats-number {
                font-size: 2.5rem;
            }
        }