:root {
            --primary-color: #0d6efd;
            --secondary-color: #6c757d;
            --success-color: #198754;
            --danger-color: #dc3545;
            --warning-color: #ffc107;
            --light-bg: #f8f9fa;
            --dark-bg: #212529;
            --worldcup-blue: #1e3a8a;
            --worldcup-green: #16a34a;
            --mexico-green: #006847;
            --mexico-red: #ce1126;
            --korea-red: #c60c30;
            --korea-blue: #003478;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: var(--light-bg);
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            background: linear-gradient(90deg, var(--mexico-green), var(--mexico-red), var(--korea-red), var(--korea-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-section {
            background: linear-gradient(135deg, rgba(30, 58, 138, 0.9) 0%, rgba(22, 163, 74, 0.85) 100%), url('https://images.unsplash.com/photo-1647427016707-3c19b4c91c99?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 6rem 0;
            position: relative;
        }
        .flag-stripe {
            height: 8px;
            width: 100%;
            background: linear-gradient(90deg, var(--mexico-green) 25%, var(--mexico-red) 25% 50%, var(--korea-red) 50% 75%, var(--korea-blue) 75%);
        }
        .match-card {
            background: white;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            transition: transform 0.3s ease;
            overflow: hidden;
            border-top: 5px solid var(--worldcup-blue);
        }
        .match-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.12);
        }
        .team-flag {
            width: 80px;
            height: 56px;
            object-fit: cover;
            border-radius: 6px;
            border: 2px solid #eee;
        }
        .vs-circle {
            width: 60px;
            height: 60px;
            background: var(--danger-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.5rem;
        }
        .prediction-badge {
            font-size: 0.85rem;
            padding: 0.4rem 1rem;
            border-radius: 50px;
        }
        .odds-display {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--success-color);
        }
        .stat-card {
            background: white;
            border-radius: 10px;
            padding: 1.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            height: 100%;
            border-left: 4px solid var(--primary-color);
        }
        .progress-custom {
            height: 12px;
            border-radius: 6px;
        }
        .live-badge {
            animation: pulse 1.5s infinite;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
        }
        @keyframes pulse {
            0% { opacity: 1; }
            50% { opacity: 0.7; }
            100% { opacity: 1; }
        }
        .data-table th {
            background-color: var(--worldcup-blue);
            color: white;
            border: none;
        }
        .analysis-section {
            background-color: white;
            border-radius: 12px;
            padding: 2.5rem;
            margin-bottom: 2rem;
            box-shadow: 0 8px 25px rgba(0,0,0,0.06);
        }
        .timeline {
            position: relative;
            padding-left: 2rem;
        }
        .timeline:before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: linear-gradient(to bottom, var(--mexico-green), var(--korea-blue));
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2rem;
            padding-left: 1.5rem;
        }
        .timeline-item:before {
            content: '';
            position: absolute;
            left: -0.5rem;
            top: 0.5rem;
            width: 1rem;
            height: 1rem;
            border-radius: 50%;
            background-color: var(--primary-color);
            border: 3px solid white;
            box-shadow: 0 0 0 3px var(--primary-color);
        }
        .footer {
            background-color: var(--dark-bg);
            color: white;
            padding-top: 3rem;
        }
        .flink {
            display: inline-block;
            padding: 0.5rem 1.2rem;
            margin: 0.3rem;
            background: rgba(255,255,255,0.1);
            color: #ddd;
            border-radius: 6px;
            text-decoration: none;
            transition: all 0.3s;
            border: 1px solid rgba(255,255,255,0.2);
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
            border-color: var(--primary-color);
        }
        .contact-info a {
            color: #4dabf7;
            text-decoration: none;
        }
        .contact-info a:hover {
            text-decoration: underline;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 4rem 0;
            }
            .display-4 {
                font-size: 2.5rem;
            }
            .odds-display {
                font-size: 1.4rem;
            }
        }