:root {
            --primary-color: #1a237e;
            --secondary-color: #0d47a1;
            --accent-color: #ff9800;
            --light-color: #f5f7fa;
            --dark-color: #212121;
        }
        body {
            font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
            color: #333;
            background-color: #f9f9f9;
            line-height: 1.8;
        }
        h1, h2, h3, h4 {
            color: var(--primary-color);
            font-weight: 700;
            margin-bottom: 1.5rem;
        }
        .navbar {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            padding: 1rem 0;
        }
        .navbar-brand {
            font-size: 1.8rem;
            font-weight: bold;
            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: var(--accent-color) !important;
        }
        .hero {
            background: url('https://images.unsplash.com/photo-1641056739233-6d82b1529b75?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') no-repeat center center/cover;
            color: white;
            padding: 8rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 50, 0.7);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero h1 {
            color: white;
            font-size: 3.5rem;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
        }
        .btn-primary {
            background-color: var(--accent-color);
            border: none;
            padding: 0.8rem 2.5rem;
            font-weight: bold;
            border-radius: 50px;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background-color: #e68900;
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.2);
        }
        .section {
            padding: 5rem 0;
        }
        .bg-light {
            background-color: var(--light-color) !important;
        }
        .card {
            border: none;
            border-radius: 15px;
            box-shadow: 0 6px 15px rgba(0,0,0,0.08);
            transition: transform 0.4s, box-shadow 0.4s;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 12px 25px rgba(0,0,0,0.15);
        }
        .card-title {
            color: var(--primary-color);
            font-weight: 700;
        }
        .icon-box {
            font-size: 3rem;
            color: var(--accent-color);
            margin-bottom: 1.5rem;
        }
        .live-score {
            background: linear-gradient(135deg, #2e7d32 0%, #4caf50 100%);
            color: white;
            padding: 1.5rem;
            border-radius: 15px;
            margin-bottom: 2rem;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 1rem;
        }
        .data-table th, .data-table td {
            border: 1px solid #dee2e6;
            padding: 12px;
            text-align: center;
        }
        .data-table th {
            background-color: var(--primary-color);
            color: white;
        }
        .friendlink .flink {
            display: inline-block;
            background: white;
            color: var(--primary-color);
            padding: 10px 20px;
            margin: 8px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s;
            border: 2px solid transparent;
        }
        .friendlink .flink:hover {
            background: var(--primary-color);
            color: white;
            border-color: var(--accent-color);
        }
        footer {
            background: var(--dark-color);
            color: white;
            padding: 3rem 0 1.5rem;
        }
        footer a {
            color: #bbbbbb;
            text-decoration: none;
            transition: color 0.3s;
        }
        footer a:hover {
            color: var(--accent-color);
        }
        .social-icons a {
            font-size: 1.5rem;
            margin: 0 10px;
            color: #bbbbbb;
            transition: color 0.3s;
        }
        .social-icons a:hover {
            color: var(--accent-color);
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            .section {
                padding: 3rem 0;
            }
        }