:root {
            --primary-color: #0d6efd;
            --secondary-color: #6c757d;
            --accent-color: #ffc107;
            --dark-color: #212529;
            --light-color: #f8f9fa;
        }
        body {
            font-family: 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: var(--dark-color);
            background-color: #fff;
        }
        .navbar-brand {
            font-weight: bold;
            font-size: 1.5rem;
            color: var(--primary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(13, 110, 253, 0.8), rgba(0, 0, 0, 0.7)), url('https://picsum.photos/1920/1080?random=1') no-repeat center center/cover;
            color: white;
            padding: 120px 0;
            text-align: center;
        }
        .section-title {
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 10px;
            margin-bottom: 30px;
            display: inline-block;
        }
        .card {
            border: none;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
        }
        .live-score {
            background-color: var(--light-color);
            border-left: 5px solid var(--primary-color);
            padding: 15px;
            margin-bottom: 15px;
            border-radius: 5px;
        }
        .table-hover tbody tr:hover {
            background-color: rgba(13, 110, 253, 0.1);
        }
        .friendlink .flink {
            display: inline-block;
            padding: 10px 20px;
            margin: 5px;
            background-color: var(--light-color);
            border: 1px solid #dee2e6;
            border-radius: 5px;
            color: var(--dark-color);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        .friendlink .flink:hover {
            background-color: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 30px 0;
        }
        .social-icons a {
            color: white;
            font-size: 1.5rem;
            margin: 0 10px;
            transition: color 0.3s ease;
        }
        .social-icons a:hover {
            color: var(--accent-color);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 80px 0;
            }
            .display-4 {
                font-size: 2.5rem;
            }
        }