:root {
            --primary-color: #0d4d9e;
            --secondary-color: #da251d;
            --accent-color: #ffcc00;
            --dark-color: #1a1a1a;
            --light-color: #f8f9fa;
            --text-color: #333;
            --border-radius: 8px;
            --box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--light-color);
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
            position: relative;
        }
        .section-header h2 {
            display: inline-block;
            padding-bottom: 10px;
            position: relative;
        }
        .section-header h2:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background-color: var(--secondary-color);
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary-color);
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .nav-link {
            font-weight: 500;
            margin: 0 10px;
            color: var(--dark-color);
            transition: var(--transition);
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-color);
        }
        .navbar-toggler {
            border: none;
            padding: 0;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        .hero-section {
            background: linear-gradient(rgba(13, 77, 158, 0.85), rgba(218, 37, 29, 0.8)), url('https://images.unsplash.com/photo-1575361204480-aadea25e6e68?ixlib=rb-4.0.3&auto=format&fit=crop&w=2000&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 100px 0;
            position: relative;
            overflow: hidden;
        }
        .hero-content {
            max-width: 800px;
            margin: 0 auto;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        .hero-subtitle {
            font-size: 1.5rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }
        .hero-stats {
            background-color: rgba(255,255,255,0.15);
            backdrop-filter: blur(10px);
            border-radius: var(--border-radius);
            padding: 30px;
            margin-top: 40px;
        }
        .stat-item {
            text-align: center;
            padding: 15px;
        }
        .stat-value {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent-color);
            margin-bottom: 5px;
        }
        .stat-label {
            font-size: 1rem;
            opacity: 0.9;
        }
        .custom-card {
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 25px;
            height: 100%;
            transition: var(--transition);
            border: none;
        }
        .custom-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .card-icon {
            width: 70px;
            height: 70px;
            background-color: rgba(13, 77, 158, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }
        .card-icon i {
            font-size: 2rem;
            color: var(--primary-color);
        }
        .prediction-card {
            border-left: 5px solid var(--secondary-color);
            background-color: white;
            border-radius: var(--border-radius);
            padding: 25px;
            box-shadow: var(--box-shadow);
            margin-bottom: 30px;
        }
        .team-flag {
            width: 60px;
            height: 40px;
            object-fit: cover;
            border-radius: 4px;
            box-shadow: 0 3px 6px rgba(0,0,0,0.1);
        }
        .vs-text {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--secondary-color);
            margin: 0 20px;
        }
        .prediction-bar {
            height: 20px;
            background-color: #e9ecef;
            border-radius: 10px;
            overflow: hidden;
            margin: 20px 0;
        }
        .prediction-fill {
            height: 100%;
            border-radius: 10px;
        }
        .prediction-fill.germany {
            background-color: var(--primary-color);
            width: 68%;
        }
        .prediction-fill.cote {
            background-color: var(--secondary-color);
            width: 32%;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 30px;
        }
        .data-table th {
            background-color: var(--primary-color);
            color: white;
            padding: 15px;
            text-align: left;
        }
        .data-table td {
            padding: 12px 15px;
            border-bottom: 1px solid #e9ecef;
        }
        .data-table tr:nth-child(even) {
            background-color: #f8f9fa;
        }
        .data-table tr:hover {
            background-color: rgba(13, 77, 158, 0.05);
        }
        .friendlink {
            background-color: #f8f9fa;
            padding: 60px 0;
        }
        .flink {
            display: inline-block;
            background-color: white;
            color: var(--dark-color);
            padding: 12px 25px;
            margin: 8px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
            border: 1px solid #e9ecef;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-3px);
            text-decoration: none;
        }
        .footer {
            background-color: var(--dark-color);
            color: white;
            padding: 60px 0 30px;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
            margin-bottom: 20px;
            display: inline-block;
        }
        .footer-links h5 {
            color: white;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid rgba(255,255,255,0.1);
        }
        .footer-links a {
            color: #b0b0b0;
            text-decoration: none;
            display: block;
            margin-bottom: 10px;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            margin-top: 40px;
            text-align: center;
            color: #b0b0b0;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .hero-title {
                font-size: 2.8rem;
            }
            .hero-subtitle {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.3rem;
            }
            .hero-subtitle {
                font-size: 1.1rem;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
            .stat-value {
                font-size: 2rem;
            }
        }
        @media (max-width: 576px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-section {
                padding: 70px 0;
            }
            .custom-card {
                padding: 20px;
            }
        }
        .bg-light-blue {
            background-color: rgba(13, 77, 158, 0.05);
        }
        .btn-primary-custom {
            background-color: var(--primary-color);
            color: white;
            padding: 12px 30px;
            border-radius: 50px;
            border: none;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary-custom:hover {
            background-color: #0a3d7a;
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(13, 77, 158, 0.2);
        }
        .btn-secondary-custom {
            background-color: var(--secondary-color);
            color: white;
            padding: 12px 30px;
            border-radius: 50px;
            border: none;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-secondary-custom:hover {
            background-color: #b21e18;
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(218, 37, 29, 0.2);
        }
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }