:root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #f59e0b;
            --dark-color: #0f172a;
            --light-color: #f8fafc;
            --gray-color: #64748b;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(15, 23, 42, 0.85), rgba(30, 58, 138, 0.9)), url('https://images.unsplash.com/photo-1556056504-5c7696c4c28d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 120px 0 80px;
            position: relative;
        }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
        }
        .hero-subtitle {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            opacity: 0.9;
            max-width: 700px;
        }
        .feature-card {
            transition: all 0.3s ease;
            border-radius: 12px;
            overflow: hidden;
            height: 100%;
            border: 1px solid #e2e8f0;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
            border-color: var(--primary-color);
        }
        .feature-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--primary-color), #3b82f6);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: white;
            font-size: 1.8rem;
        }
        .match-card {
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
            border: 1px solid #e2e8f0;
        }
        .match-card:hover {
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            border-color: var(--accent-color);
        }
        .team-logo {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            object-fit: cover;
            border: 2px solid #e2e8f0;
        }
        .prediction-badge {
            background: linear-gradient(135deg, var(--secondary-color), #ef4444);
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.85rem;
        }
        .analysis-section {
            background-color: #f8fafc;
            position: relative;
            overflow: hidden;
        }
        .analysis-section::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(30, 58, 138, 0.05), rgba(220, 38, 38, 0.05));
            top: -150px;
            right: -150px;
        }
        .article-card {
            transition: all 0.3s ease;
            border-radius: 10px;
            overflow: hidden;
            height: 100%;
        }
        .article-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 20px rgba(0,0,0,0.1);
        }
        .article-img {
            height: 200px;
            object-fit: cover;
            width: 100%;
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary-color);
            line-height: 1;
        }
        .stat-label {
            color: var(--gray-color);
            font-size: 0.95rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .friendlink {
            background-color: #f1f5f9;
            padding: 60px 0;
        }
        .flink {
            display: inline-block;
            padding: 10px 20px;
            margin: 8px;
            background: white;
            border-radius: 8px;
            color: var(--dark-color);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            border: 1px solid #e2e8f0;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
            transform: translateY(-3px);
        }
        .footer {
            background-color: var(--dark-color);
            color: white;
            padding-top: 60px;
        }
        .footer a {
            color: #cbd5e1;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer a:hover {
            color: white;
        }
        .copyright {
            background-color: rgba(0,0,0,0.2);
            padding: 20px 0;
            margin-top: 40px;
        }
        .contact-info li {
            margin-bottom: 12px;
            display: flex;
            align-items: center;
        }
        .contact-info i {
            width: 24px;
            color: var(--accent-color);
            margin-right: 10px;
        }
        .btn-primary-custom {
            background: linear-gradient(135deg, var(--primary-color), #3b82f6);
            border: none;
            padding: 12px 28px;
            font-weight: 600;
            border-radius: 8px;
            transition: all 0.3s ease;
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(30, 58, 138, 0.3);
        }
        .btn-secondary-custom {
            background: linear-gradient(135deg, var(--secondary-color), #ef4444);
            border: none;
            padding: 12px 28px;
            font-weight: 600;
            border-radius: 8px;
            transition: all 0.3s ease;
            color: white;
        }
        .btn-secondary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(220, 38, 38, 0.3);
            color: white;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 40px;
            font-weight: 700;
            color: var(--dark-color);
        }
        .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 70px;
            height: 4px;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            border-radius: 2px;
        }
        .text-center .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .expert-card {
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .expert-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .expert-img {
            width: 120px;
            height: 120px;
            border-radius: 50%;
            object-fit: cover;
            border: 5px solid white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .accuracy-badge {
            background: linear-gradient(135deg, #10b981, #34d399);
            color: white;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-subtitle {
                font-size: 1.1rem;
            }
            .stat-number {
                font-size: 2.2rem;
            }
            .navbar-brand {
                font-size: 1.4rem;
            }
        }
        .success-rate {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--secondary-color);
        }
        .league-badge {
            display: inline-block;
            padding: 4px 12px;
            background-color: #e2e8f0;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--dark-color);
            margin-right: 8px;
            margin-bottom: 8px;
        }
        .testimonial-card {
            border-radius: 12px;
            padding: 30px;
            background-color: white;
            border: 1px solid #e2e8f0;
            height: 100%;
            transition: all 0.3s ease;
        }
        .testimonial-card:hover {
            box-shadow: 0 15px 30px rgba(0,0,0,0.08);
            border-color: var(--primary-color);
        }
        .user-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            object-fit: cover;
        }