:root {
            --primary-color: #1a237e;
            --secondary-color: #ff6f00;
            --accent-color: #00acc1;
            --light-bg: #f5f7fa;
            --dark-text: #2c3e50;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--dark-text);
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary-color) !important;
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(26, 35, 126, 0.85), rgba(0, 172, 193, 0.8)), url('https://images.unsplash.com/photo-1536922246289-88c42f957773?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 120px 0 80px;
            margin-top: 76px;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 40px;
            font-weight: 700;
            color: var(--primary-color);
        }
        .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 70px;
            height: 4px;
            background-color: var(--secondary-color);
        }
        .text-center .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .card {
            border: none;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            height: 100%;
            border-radius: 12px;
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        .card-icon {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background-color: rgba(26, 35, 126, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: var(--primary-color);
            font-size: 28px;
        }
        .stat-box {
            background-color: var(--light-bg);
            padding: 30px 20px;
            border-radius: 10px;
            text-align: center;
            border-left: 4px solid var(--secondary-color);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--primary-color);
            line-height: 1;
        }
        .team-logo {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            object-fit: cover;
            margin-right: 15px;
            border: 2px solid #eee;
        }
        .prediction-card {
            border-top: 5px solid var(--secondary-color);
        }
        .footer {
            background-color: var(--primary-color);
            color: white;
            padding: 60px 0 30px;
        }
        .footer a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: var(--transition);
        }
        .footer a:hover {
            color: white;
            padding-left: 5px;
        }
        .friendlink .flink {
            display: inline-block;
            padding: 8px 20px;
            margin: 5px;
            background-color: white;
            border-radius: 30px;
            color: var(--primary-color);
            font-weight: 500;
            text-decoration: none;
            border: 1px solid #e0e0e0;
            transition: var(--transition);
        }
        .friendlink .flink:hover {
            background-color: var(--secondary-color);
            color: white;
            border-color: var(--secondary-color);
            transform: translateY(-3px);
        }
        .btn-custom {
            background-color: var(--secondary-color);
            color: white;
            padding: 10px 25px;
            border-radius: 30px;
            font-weight: 600;
            border: none;
            transition: var(--transition);
        }
        .btn-custom:hover {
            background-color: #e65100;
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(255, 111, 0, 0.2);
        }
        .news-item {
            border-bottom: 1px solid #eee;
            padding-bottom: 20px;
            margin-bottom: 20px;
        }
        .news-date {
            color: var(--accent-color);
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 80px 0 50px;
                text-align: center;
            }
            .stat-number {
                font-size: 2.2rem;
            }
            .team-logo {
                width: 50px;
                height: 50px;
            }
        }
        .table-hover tbody tr:hover {
            background-color: rgba(26, 35, 126, 0.05);
        }
        .worldcup-logo {
            max-width: 200px;
            height: auto;
            margin-bottom: 20px;
        }
        .analysis-chart {
            background-color: var(--light-bg);
            border-radius: 10px;
            padding: 20px;
            margin-bottom: 30px;
        }
        .contact-info i {
            width: 40px;
            color: var(--secondary-color);
        }
        .carousel-item img {
            height: 500px;
            object-fit: cover;
        }
        @media (max-width: 992px) {
            .carousel-item img {
                height: 400px;
            }
        }
        @media (max-width: 768px) {
            .carousel-item img {
                height: 300px;
            }
        }