:root {
            --primary-color: #0d6efd;
            --secondary-color: #6c757d;
            --accent-color: #198754;
            --dark-color: #212529;
            --light-color: #f8f9fa;
        }
        body {
            font-family: 'Microsoft YaHei', sans-serif;
            color: var(--dark-color);
            background-color: #fff;
            line-height: 1.8;
        }
        header {
            background: linear-gradient(135deg, var(--primary-color), #0b5ed7);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: white !important;
        }
        .nav-link {
            color: rgba(255,255,255,0.9) !important;
            font-weight: 500;
            transition: color 0.3s;
        }
        .nav-link:hover, .nav-link.active {
            color: white !important;
            text-decoration: underline;
        }
        .hero {
            background: url('https://via.placeholder.com/1920x600/0d6efd/ffffff?text=2026世界杯巴西vs摩洛哥') center/cover no-repeat;
            padding: 120px 0;
            color: white;
            text-shadow: 1px 1px 4px rgba(0,0,0,0.7);
        }
        .hero h1 {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 20px;
        }
        .section-title {
            border-left: 5px solid var(--primary-color);
            padding-left: 15px;
            margin-bottom: 30px;
            font-weight: 700;
            color: var(--dark-color);
        }
        .card {
            border: none;
            border-radius: 12px;
            box-shadow: 0 6px 15px rgba(0,0,0,0.08);
            transition: transform 0.3s, box-shadow 0.3s;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 12px 20px rgba(0,0,0,0.15);
        }
        .card-img-top {
            border-radius: 12px 12px 0 0;
            height: 200px;
            object-fit: cover;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border: none;
            padding: 12px 30px;
            font-weight: 600;
            border-radius: 50px;
            transition: background-color 0.3s, transform 0.3s;
        }
        .btn-primary:hover {
            background-color: #0b5ed7;
            transform: scale(1.05);
        }
        .live-score {
            background-color: #e9ecef;
            border-radius: 10px;
            padding: 20px;
            margin-bottom: 30px;
        }
        .live-score h4 i {
            color: var(--accent-color);
            animation: pulse 1.5s infinite;
        }
        @keyframes pulse {
            0% { opacity: 1; }
            50% { opacity: 0.6; }
            100% { opacity: 1; }
        }
        .friendlink a.flink {
            display: inline-block;
            background: var(--light-color);
            color: var(--dark-color);
            padding: 10px 20px;
            margin: 5px 10px;
            border-radius: 8px;
            text-decoration: none;
            border: 1px solid #dee2e6;
            transition: all 0.3s;
        }
        .friendlink a.flink:hover {
            background: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
        }
        footer {
            background-color: var(--dark-color);
            color: var(--light-color);
            padding: 40px 0 20px;
        }
        footer a {
            color: #adb5bd;
            text-decoration: none;
            transition: color 0.3s;
        }
        footer a:hover {
            color: white;
        }
        .social-icons a {
            display: inline-block;
            width: 40px;
            height: 40px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            text-align: center;
            line-height: 40px;
            margin-right: 10px;
        }
        .social-icons a:hover {
            background: var(--primary-color);
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }