:root {
            --primary-color: #1a3d7c;
            --secondary-color: #e63946;
            --accent-color: #f4a261;
            --light-color: #f8f9fa;
            --dark-color: #212529;
            --success-color: #2a9d8f;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--primary-color);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.6rem;
            color: var(--primary-color) !important;
        }
        .nav-link {
            font-weight: 500;
            padding: 0.5rem 1.2rem !important;
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--secondary-color) !important;
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(rgba(26, 61, 124, 0.9), rgba(26, 61, 124, 0.8)), url('https://images.unsplash.com/photo-1553778263-73a83bab9b0c?ixlib=rb-4.0.3&auto=format&fit=crop&w=2071&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 180px 0 120px;
            margin-top: 76px;
        }
        .hero-title {
            font-size: 3.2rem;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
        }
        .section-padding {
            padding: 100px 0;
        }
        .section-title {
            position: relative;
            padding-bottom: 20px;
            margin-bottom: 50px;
            text-align: center;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
        }
        .feature-card {
            border: none;
            border-radius: 12px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
            overflow: hidden;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 12px 24px rgba(0,0,0,0.15);
        }
        .feature-icon {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            color: white;
            font-size: 1.8rem;
        }
        .prediction-card {
            border-left: 5px solid var(--secondary-color);
            background: #f8f9fa;
            padding: 25px;
            margin-bottom: 25px;
            border-radius: 0 10px 10px 0;
        }
        .team-logo {
            width: 60px;
            height: 60px;
            object-fit: contain;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-color);
            line-height: 1;
        }
        .btn-custom {
            background: linear-gradient(to right, var(--primary-color), #2a4b8f);
            color: white;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            transition: var(--transition);
        }
        .btn-custom:hover {
            background: linear-gradient(to right, #2a4b8f, var(--primary-color));
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(26, 61, 124, 0.3);
        }
        .footer {
            background: #1a1f36;
            color: #adb5bd;
            padding: 80px 0 30px;
        }
        .footer a {
            color: #ced4da;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            border-top: 1px solid #2d3748;
            padding-top: 20px;
            margin-top: 50px;
            font-size: 0.9rem;
        }
        .flink {
            display: inline-block;
            background: rgba(255,255,255,0.1);
            padding: 10px 20px;
            margin: 5px 10px 5px 0;
            border-radius: 6px;
            transition: var(--transition);
            color: #ced4da;
        }
        .flink:hover {
            background: rgba(255,255,255,0.2);
            color: white;
            transform: translateY(-3px);
            text-decoration: none;
        }
        .article-content {
            font-size: 1.1rem;
            line-height: 1.9;
        }
        .article-content h3 {
            margin-top: 2.5rem;
            margin-bottom: 1.2rem;
            color: #2c5282;
        }
        .article-content p {
            margin-bottom: 1.5rem;
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .section-padding {
                padding: 60px 0;
            }
            .stat-number {
                font-size: 2.5rem;
            }
        }