:root {
            --primary-color: #1a365d;
            --secondary-color: #e63946;
            --accent-color: #2a9d8f;
            --light-color: #f8f9fa;
            --dark-color: #212529;
            --gray-color: #6c757d;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--dark-color);
            line-height: 1.7;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--primary-color) !important;
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .nav-link {
            font-weight: 600;
            padding: 0.5rem 1rem !important;
            border-radius: 4px;
            margin: 0 0.2rem;
        }
        .nav-link:hover {
            background-color: rgba(26, 54, 93, 0.1);
        }
        .hero-section {
            background: linear-gradient(rgba(26, 54, 93, 0.85), rgba(26, 54, 93, 0.9)), url('https://images.unsplash.com/photo-1575361204480-aadea25e6e68?ixlib=rb-4.0.3&auto=format&fit=crop&w=2071&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 120px 0 80px;
            position: relative;
        }
        .hero-section h1 {
            color: white;
            font-size: 3rem;
            margin-bottom: 1.5rem;
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.2rem;
            }
        }
        .hero-section p {
            font-size: 1.2rem;
            opacity: 0.9;
            margin-bottom: 2rem;
        }
        .btn-primary {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            padding: 0.75rem 2rem;
            font-weight: 600;
            border-radius: 4px;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: #c1121f;
            border-color: #c1121f;
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 3rem;
            text-align: center;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background-color: var(--secondary-color);
            border-radius: 2px;
        }
        .card {
            border: none;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
        }
        .card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
        }
        .card-icon {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background-color: rgba(42, 157, 143, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: var(--accent-color);
            font-size: 1.8rem;
        }
        .feature-card {
            padding: 2.5rem 1.5rem;
            text-align: center;
            border-top: 4px solid var(--accent-color);
        }
        .analysis-card {
            border-left: 4px solid var(--secondary-color);
        }
        .stats-box {
            background-color: var(--primary-color);
            color: white;
            padding: 2rem;
            border-radius: 12px;
            text-align: center;
            box-shadow: var(--shadow);
        }
        .stats-number {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 0.5rem;
            color: white;
        }
        .stats-label {
            font-size: 1rem;
            opacity: 0.9;
        }
        .match-prediction {
            background-color: #f8f9fa;
            border-radius: 12px;
            padding: 2rem;
            border-left: 5px solid var(--secondary-color);
        }
        .team-flag {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            overflow: hidden;
            border: 3px solid white;
            box-shadow: var(--shadow);
            margin: 0 auto 1rem;
        }
        .team-flag img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .vs-text {
            font-size: 2rem;
            font-weight: 900;
            color: var(--secondary-color);
            margin: 0 1rem;
        }
        .prediction-result {
            background-color: var(--accent-color);
            color: white;
            padding: 1rem 2rem;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.2rem;
            display: inline-block;
            margin-top: 1.5rem;
        }
        .live-score {
            background-color: #ffd700;
            color: var(--dark-color);
            padding: 1rem;
            border-radius: 8px;
            font-weight: 700;
            text-align: center;
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(255, 215, 0, 0.7); }
            70% { box-shadow: 0 0 0 10px rgba(255, 215, 0, 0); }
            100% { box-shadow: 0 0 0 0 rgba(255, 215, 0, 0); }
        }
        .data-table {
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .data-table th {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 1rem;
        }
        .data-table td {
            padding: 1rem;
            vertical-align: middle;
        }
        .data-table tr:nth-child(even) {
            background-color: #f8f9fa;
        }
        .flink {
            display: inline-block;
            background-color: #f8f9fa;
            color: var(--primary-color);
            padding: 0.75rem 1.5rem;
            border-radius: 50px;
            margin: 0.5rem;
            font-weight: 600;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
            transform: translateY(-3px);
        }
        .friendlink {
            background-color: #f8f9fa;
            padding: 4rem 0;
            border-top: 1px solid #dee2e6;
            border-bottom: 1px solid #dee2e6;
        }
        footer {
            background-color: var(--primary-color);
            color: white;
            padding: 3rem 0 1.5rem;
        }
        footer a {
            color: rgba(255, 255, 255, 0.8);
        }
        footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .footer-links h5 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
            padding-left: 0;
        }
        .footer-links li {
            margin-bottom: 0.75rem;
        }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            margin-top: 2rem;
            text-align: center;
            font-size: 0.9rem;
            opacity: 0.8;
        }
        .breadcrumb {
            background-color: transparent;
            padding: 0;
            margin-bottom: 2rem;
        }
        .breadcrumb-item.active {
            color: var(--secondary-color);
            font-weight: 600;
        }
        .content-section {
            padding: 5rem 0;
        }
        .content-section:nth-child(even) {
            background-color: #f8f9fa;
        }
        .article-content {
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .article-content h3 {
            margin-top: 2.5rem;
            margin-bottom: 1.2rem;
            color: var(--primary-color);
        }
        .article-content p {
            margin-bottom: 1.5rem;
        }
        .highlight-box {
            background-color: rgba(42, 157, 143, 0.1);
            border-left: 4px solid var(--accent-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .form-control {
            border-radius: 4px;
            padding: 0.75rem 1rem;
            border: 1px solid #ced4da;
        }
        .form-control:focus {
            border-color: var(--accent-color);
            box-shadow: 0 0 0 0.25rem rgba(42, 157, 143, 0.25);
        }
        .contact-info i {
            width: 24px;
            color: var(--accent-color);
            margin-right: 10px;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--secondary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background-color: #c1121f;
            color: white;
            transform: translateY(-5px);
        }
        @media (max-width: 992px) {
            .content-section {
                padding: 3rem 0;
            }
            .stats-number {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 100px 0 60px;
            }
            .section-title {
                margin-bottom: 2rem;
            }
        }