:root {
            --primary-color: #0d6efd;
            --secondary-color: #6c757d;
            --success-color: #198754;
            --danger-color: #dc3545;
            --warning-color: #ffc107;
            --info-color: #0dcaf0;
            --light-color: #f8f9fa;
            --dark-color: #212529;
            --worldcup-blue: #1e3a8a;
            --worldcup-green: #065f46;
        }
        body {
            font-family: 'Microsoft YaHei', 'Segoe UI', Arial, sans-serif;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--worldcup-blue) !important;
        }
        .hero-section {
            background: linear-gradient(135deg, var(--worldcup-blue) 0%, var(--worldcup-green) 100%);
            color: white;
            padding: 6rem 0;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(255,255,255,0.05)"/>') no-repeat;
            background-size: cover;
            z-index: 0;
        }
        .hero-content {
            position: relative;
            z-index: 1;
        }
        .section-title {
            color: var(--worldcup-blue);
            border-left: 5px solid var(--warning-color);
            padding-left: 15px;
            margin-bottom: 2rem;
            font-weight: 700;
        }
        .card {
            border: none;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            margin-bottom: 1.5rem;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .card-header {
            background-color: var(--worldcup-blue);
            color: white;
            border-radius: 12px 12px 0 0 !important;
            font-weight: 600;
            padding: 1rem 1.5rem;
        }
        .badge-worldcup {
            background-color: var(--worldcup-green);
            color: white;
        }
        .table-hover tbody tr:hover {
            background-color: rgba(13, 110, 253, 0.05);
        }
        .live-score {
            background-color: #fff3cd;
            border-left: 5px solid var(--warning-color);
            padding: 1rem;
            border-radius: 0 8px 8px 0;
            font-weight: 600;
        }
        .analysis-box {
            background: linear-gradient(to right, #f8f9fa, #e9ecef);
            border-radius: 10px;
            padding: 2rem;
            margin-bottom: 2rem;
        }
        .flink {
            display: inline-block;
            background-color: #f1f5f9;
            color: #334155;
            padding: 0.5rem 1.5rem;
            margin: 0.5rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            border: 2px solid #cbd5e1;
        }
        .flink:hover {
            background-color: var(--worldcup-blue);
            color: white;
            border-color: var(--worldcup-blue);
            transform: scale(1.05);
        }
        .friendlink {
            background-color: #f8fafc;
            padding: 3rem 0;
        }
        footer {
            background-color: var(--dark-color);
            color: var(--light-color);
            padding: 3rem 0 1.5rem;
        }
        .social-icons a {
            color: #adb5bd;
            font-size: 1.5rem;
            margin-right: 1rem;
            transition: color 0.3s ease;
        }
        .social-icons a:hover {
            color: var(--primary-color);
        }
        .contact-info li {
            margin-bottom: 0.8rem;
        }
        .contact-info i {
            color: var(--primary-color);
            width: 25px;
        }
        .btn-worldcup {
            background: linear-gradient(to right, var(--worldcup-blue), var(--worldcup-green));
            color: white;
            border: none;
            padding: 0.75rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-worldcup:hover {
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
        }
        .stats-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--worldcup-blue);
            line-height: 1;
        }
        .stats-label {
            color: var(--secondary-color);
            font-size: 1rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .team-flag {
            height: 30px;
            width: auto;
            vertical-align: middle;
            margin-right: 10px;
            border: 1px solid #dee2e6;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 4rem 0;
            }
            .display-4 {
                font-size: 2.5rem;
            }
            .stats-number {
                font-size: 2rem;
            }
        }