:root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #f59e0b;
            --light-color: #f8fafc;
            --dark-color: #0f172a;
            --text-color: #334155;
            --border-radius: 12px;
            --transition: all 0.3s ease;
            --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
            --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--text-color);
            line-height: 1.7;
            overflow-x: hidden;
            background-color: #f8f9fa;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--dark-color);
            margin-bottom: 1rem;
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            padding: 1rem 0;
            transition: var(--transition);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color);
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .nav-link {
            font-weight: 600;
            margin: 0 0.5rem;
            color: var(--dark-color);
            position: relative;
            transition: var(--transition);
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-color);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            bottom: 0;
            left: 0;
            background-color: var(--secondary-color);
            transition: var(--transition);
        }
        .nav-link:hover::after, .nav-link.active::after {
            width: 100%;
        }
        .hero-section {
            background: linear-gradient(rgba(15, 23, 42, 0.85), rgba(15, 23, 42, 0.9)), url('https://images.unsplash.com/photo-1575361204480-aadea25e6e68?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            color: white;
            padding: 8rem 0;
            position: relative;
        }
        .hero-section h1 {
            color: white;
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
        }
        .hero-section p {
            font-size: 1.3rem;
            margin-bottom: 2.5rem;
            max-width: 800px;
        }
        .btn-primary {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            padding: 0.8rem 2.5rem;
            font-weight: 600;
            border-radius: 50px;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: #b91c1c;
            border-color: #b91c1c;
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .section-title {
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 3rem;
            text-align: center;
        }
        .section-title::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background-color: var(--secondary-color);
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            border-radius: 2px;
        }
        .feature-card {
            background: white;
            border-radius: var(--border-radius);
            padding: 2.5rem 2rem;
            height: 100%;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid #e2e8f0;
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-hover);
        }
        .feature-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: white;
            font-size: 2rem;
        }
        .prediction-card {
            background: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            margin-bottom: 2rem;
            border: 1px solid #e2e8f0;
        }
        .prediction-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        .match-header {
            background: var(--primary-color);
            color: white;
            padding: 1.2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .match-teams {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.5rem;
        }
        .team {
            text-align: center;
            flex: 1;
        }
        .team-logo {
            width: 70px;
            height: 70px;
            background-color: #f1f5f9;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.8rem;
            color: var(--primary-color);
        }
        .vs {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--secondary-color);
            margin: 0 1.5rem;
        }
        .analysis-section {
            background-color: var(--light-color);
            padding: 6rem 0;
        }
        .analysis-card {
            background: white;
            border-radius: var(--border-radius);
            padding: 2.5rem;
            box-shadow: var(--shadow);
            height: 100%;
            border-left: 5px solid var(--secondary-color);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
            gap: 1.5rem;
            margin-top: 2rem;
        }
        .stat-item {
            background: #f8fafc;
            border-radius: var(--border-radius);
            padding: 1.5rem;
            text-align: center;
            border: 1px solid #e2e8f0;
        }
        .stat-value {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
            line-height: 1;
        }
        .stat-label {
            font-size: 0.9rem;
            color: #64748b;
            margin-top: 0.5rem;
        }
        .article-card {
            background: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
        }
        .article-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        .article-img {
            height: 220px;
            background-size: cover;
            background-position: center;
        }
        .article-content {
            padding: 1.8rem;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            color: #64748b;
            font-size: 0.9rem;
            margin-bottom: 1rem;
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 0.8rem 1.8rem;
            border-radius: 50px;
            margin: 0.5rem;
            color: var(--text-color);
            font-weight: 600;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid #e2e8f0;
            text-decoration: none;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            text-decoration: none;
        }
        .friendlink {
            background-color: var(--light-color);
            padding: 5rem 0;
        }
        .footer {
            background-color: var(--dark-color);
            color: #cbd5e1;
            padding: 5rem 0 2rem;
        }
        .footer a {
            color: #cbd5e1;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .footer-title {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 0.8rem;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            width: 50px;
            height: 3px;
            background-color: var(--secondary-color);
            bottom: 0;
            left: 0;
        }
        .copyright {
            border-top: 1px solid #334155;
            padding-top: 2rem;
            margin-top: 3rem;
            text-align: center;
            font-size: 0.9rem;
            color: #94a3b8;
        }
        .scroll-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: 1.5rem;
            cursor: pointer;
            z-index: 1000;
            box-shadow: var(--shadow);
            transition: var(--transition);
            opacity: 0;
            visibility: hidden;
        }
        .scroll-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .scroll-to-top:hover {
            background-color: #b91c1c;
            transform: translateY(-5px);
        }
        .league-badge {
            display: inline-block;
            padding: 0.3rem 1rem;
            background-color: #f1f5f9;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary-color);
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .hero-section {
                padding: 5rem 0;
                background-attachment: scroll;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .hero-section h1 {
                font-size: 2rem;
            }
            .team-logo {
                width: 50px;
                height: 50px;
                font-size: 1.4rem;
            }
            .vs {
                font-size: 1.4rem;
                margin: 0 0.8rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(30, 58, 138, 0.25);
        }
        .contact-info-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 1.5rem;
        }
        .contact-icon {
            background-color: var(--primary-color);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            flex-shrink: 0;
        }