:root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #f59e0b;
            --light-bg: #f8fafc;
            --dark-text: #1f2937;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--dark-text);
            line-height: 1.6;
        }
        .navbar-brand {
            font-weight: bold;
            font-size: 1.5rem;
            color: var(--primary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(30, 58, 138, 0.9), rgba(30, 58, 138, 0.7)), url('https://images.unsplash.com/photo-1556056504-5c7696c4c28d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
            color: white;
            padding: 100px 0;
        }
        .section-title {
            color: var(--primary-color);
            border-left: 5px solid var(--secondary-color);
            padding-left: 15px;
            margin-bottom: 30px;
        }
        .card {
            border: none;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s ease;
        }
        .card:hover {
            transform: translateY(-10px);
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }
        .btn-primary:hover {
            background-color: #1c3a7a;
            border-color: #1c3a7a;
        }
        .data-stat {
            background-color: var(--light-bg);
            border-radius: 10px;
            padding: 20px;
        }
        .friendlink .flink {
            display: inline-block;
            margin: 10px;
            padding: 10px 20px;
            background-color: #e5e7eb;
            border-radius: 5px;
            text-decoration: none;
            color: var(--dark-text);
            transition: background-color 0.3s;
        }
        .friendlink .flink:hover {
            background-color: var(--accent-color);
            color: white;
        }
        footer {
            background-color: var(--primary-color);
            color: white;
        }
        .live-score {
            background-color: #fef3c7;
            border-left: 5px solid var(--accent-color);
            padding: 15px;
            font-weight: bold;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 60px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
        }