:root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #f59e0b;
            --light-color: #f8fafc;
            --dark-color: #0f172a;
            --gray-color: #64748b;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.7;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--dark-color);
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
            padding: 1rem 0;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .nav-link {
            font-weight: 600;
            margin: 0 0.5rem;
            color: var(--dark-color) !important;
            transition: color 0.3s;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--secondary-color) !important;
        }
        .hero {
            background: linear-gradient(135deg, var(--primary-color) 0%, #1e40af 100%);
            color: white;
            padding: 6rem 0 5rem;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiB2aWV3Qm94PSIwIDAgMTIwMCA2MDAiIHByZXNlcnZlQXNwZWN0UmF0aW89Im5vbmUiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyI+PGcgZmlsbD0ibm9uZSIgZmlsbC1ydWxlPSJldmVub2RkIj48cGF0aCBkPSJNMCw2MDBMMTIwMCwwSDYwMFoiIGZpbGw9IiMyYTRiZGUiLz48cGF0aCBkPSJNMCw2MDBsNjAwLTYwMGg2MDB2NjAweiIgZmlsbD0iIzFjM2I5NyIvPjwvZz48L3N2Zz4=');
            opacity: 0.1;
        }
        .hero h1 {
            color: white;
            font-size: 3.2rem;
            margin-bottom: 1.5rem;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
        }
        .hero p {
            font-size: 1.2rem;
            opacity: 0.9;
            max-width: 700px;
            margin: 0 auto 2rem;
        }
        .btn-primary {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            padding: 0.8rem 2rem;
            font-weight: 600;
            border-radius: 8px;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background-color: #b91c1c;
            border-color: #b91c1c;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(220, 38, 38, 0.2);
        }
        .btn-outline-light {
            border-radius: 8px;
            padding: 0.8rem 2rem;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-outline-light:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(255, 255, 255, 0.1);
        }
        .section-title {
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 3rem;
            text-align: center;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
            border-radius: 2px;
        }
        .service-card, .team-card, .prediction-card {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            transition: all 0.4s ease;
            height: 100%;
            border: 1px solid #e2e8f0;
            background: white;
        }
        .service-card:hover, .team-card:hover, .prediction-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
        }
        .service-icon {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-color), #3b82f6);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: white;
            font-size: 2rem;
        }
        .stats-counter {
            background: linear-gradient(135deg, var(--dark-color), #334155);
            color: white;
            padding: 4rem 0;
            position: relative;
            overflow: hidden;
        }
        .stats-counter::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiB2aWV3Qm94PSIwIDAgMTIwMCA2MDAiIHByZXNlcnZlQXNwZWN0UmF0aW89Im5vbmUiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyI+PGcgZmlsbD0ibm9uZSIgZmlsbC1ydWxlPSJldmVub2RkIiBvcGFjaXR5PSIwLjEiPjxwYXRoIGQ9Ik0wLDMwMEgxMjAwTTMwMCwwdjYwME02MDAsMHY2MDBMODAwLDB2NjAwIiBzdHJva2U9IiNGRkYiIHN0cm9rZS13aWR0aD0iMiIvPjwvZz48L3N2Zz4=');
        }
        .stat-item {
            text-align: center;
        }
        .stat-number {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--accent-color);
            margin-bottom: 0.5rem;
            line-height: 1;
        }
        .stat-text {
            font-size: 1.1rem;
            opacity: 0.9;
        }
        .team-img {
            height: 200px;
            object-fit: cover;
            width: 100%;
        }
        .team-info {
            padding: 1.5rem;
        }
        .team-name {
            font-size: 1.3rem;
            margin-bottom: 0.3rem;
        }
        .team-position {
            color: var(--secondary-color);
            font-weight: 600;
            margin-bottom: 1rem;
            font-size: 0.95rem;
        }
        .prediction-card .card-header {
            background-color: var(--primary-color);
            color: white;
            font-weight: 700;
            padding: 1rem 1.5rem;
            border-bottom: 0;
        }
        .prediction-body {
            padding: 1.5rem;
        }
        .match-teams {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1.5rem;
        }
        .team-logo {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background-color: #f1f5f9;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary-color);
        }
        .vs {
            font-weight: 800;
            color: var(--secondary-color);
            font-size: 1.2rem;
        }
        .prediction-result {
            background-color: #f8fafc;
            border-radius: 8px;
            padding: 1.5rem;
            margin-top: 1rem;
        }
        .prediction-score {
            font-size: 2rem;
            font-weight: 800;
            color: var(--secondary-color);
            text-align: center;
        }
        .footer {
            background-color: var(--dark-color);
            color: #cbd5e1;
            padding-top: 4rem;
        }
        .footer h5 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
            position: relative;
            padding-bottom: 0.7rem;
        }
        .footer h5::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background-color: var(--secondary-color);
        }
        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            display: block;
            margin-bottom: 0.8rem;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .contact-info li {
            margin-bottom: 1rem;
            display: flex;
            align-items: flex-start;
        }
        .contact-info i {
            color: var(--accent-color);
            margin-right: 10px;
            margin-top: 5px;
        }
        .copyright {
            background-color: #0a0e17;
            padding: 1.5rem 0;
            margin-top: 3rem;
            text-align: center;
            border-top: 1px solid #334155;
        }
        .friendlink {
            background-color: #f8fafc;
            padding: 3rem 0;
        }
        .flink {
            display: inline-block;
            padding: 0.6rem 1.5rem;
            margin: 0.5rem;
            background-color: white;
            border-radius: 8px;
            color: var(--primary-color);
            font-weight: 600;
            text-decoration: none;
            border: 1px solid #e2e8f0;
            transition: all 0.3s;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(30, 58, 138, 0.2);
        }
        .article-content {
            font-size: 1.1rem;
            line-height: 1.9;
        }
        .article-content h3 {
            margin-top: 2.5rem;
            margin-bottom: 1.2rem;
            color: var(--primary-color);
        }
        .article-content p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight-box {
            background-color: #f0f9ff;
            border-left: 4px solid var(--primary-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .methodology-step {
            padding: 1.5rem;
            border-radius: 10px;
            background-color: white;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin-bottom: 1.5rem;
            border: 1px solid #e2e8f0;
        }
        .methodology-step .step-number {
            display: inline-block;
            width: 40px;
            height: 40px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            text-align: center;
            line-height: 40px;
            font-weight: 700;
            margin-right: 1rem;
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            .hero {
                padding: 4rem 0 3rem;
            }
            .stat-number {
                font-size: 2.8rem;
            }
        }