:root {
            --primary: #1a365d;
            --secondary: #e63946;
            --accent: #2a9d8f;
            --light: #f8f9fa;
            --dark: #212529;
            --gray: #6c757d;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--dark);
            overflow-x: hidden;
            line-height: 1.6;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--primary);
        }
        .navbar {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
            padding: 1rem 0;
            transition: var(--transition);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--secondary) !important;
        }
        .nav-link {
            font-weight: 500;
            margin: 0 0.5rem;
            color: var(--primary) !important;
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--secondary) !important;
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary) 0%, #2d4a8a 100%);
            color: white;
            padding: 6rem 0 5rem;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjxkZWZzPjxwYXR0ZXJuIGlkPSJwYXR0ZXJuIiB4PSIwIiB5PSIwIiB3aWR0aD0iNDAiIGhlaWdodD0iNDAiIHBhdHRlcm5Vbml0cz0idXNlclNwYWNlT25Vc2UiIHBhdHRlcm5UcmFuc2Zvcm09InJvdGF0ZSg0NSkiPjxyZWN0IHg9IjAiIHk9IjAiIHdpZHRoPSIyMCIgaGVpZ2h0PSIyMCIgZmlsbD0icmdiYSgyNTUsMjU1LDI1NSwwLjA1KSIvPjwvcGF0dGVybj48L2RlZnM+PHJlY3Qgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgZmlsbD0idXJsKCNwYXR0ZXJuKSIvPjwvc3ZnPg==');
        }
        .section-title {
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 3rem;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--secondary);
            border-radius: 2px;
        }
        .section-title.text-center::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .feature-card {
            background: white;
            border-radius: 12px;
            padding: 2.5rem 2rem;
            height: 100%;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: var(--transition);
            border: 1px solid rgba(0, 0, 0, 0.05);
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
        }
        .feature-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: white;
            font-size: 1.8rem;
        }
        .prediction-card {
            border-left: 4px solid var(--secondary);
            background: var(--light);
            border-radius: 8px;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            transition: var(--transition);
        }
        .prediction-card:hover {
            background: white;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
        }
        .team-logo {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--primary);
            margin: 0 auto;
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }
        .footer {
            background: var(--primary);
            color: white;
            padding: 4rem 0 2rem;
        }
        .footer a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: var(--transition);
        }
        .footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .flink {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            color: white;
            padding: 0.5rem 1.2rem;
            border-radius: 50px;
            margin: 0.3rem;
            text-decoration: none;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .flink:hover {
            background: var(--secondary);
            transform: translateY(-2px);
            color: white;
            text-decoration: none;
            border-color: var(--secondary);
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #2d4a8a);
            border: none;
            padding: 0.8rem 2rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, #2d4a8a, var(--primary));
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(26, 54, 93, 0.3);
        }
        .btn-secondary {
            background: var(--secondary);
            border: none;
            padding: 0.8rem 2rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-secondary:hover {
            background: #d32f2f;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(230, 57, 70, 0.3);
        }
        .accordion-button:not(.collapsed) {
            background-color: rgba(26, 54, 93, 0.05);
            color: var(--primary);
            font-weight: 600;
        }
        .contact-info {
            background: var(--light);
            border-radius: 12px;
            padding: 2.5rem;
            height: 100%;
        }
        .contact-icon {
            width: 50px;
            height: 50px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 4rem 0 3rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .feature-card {
                padding: 2rem 1.5rem;
            }
            .stat-number {
                font-size: 2rem;
            }
        }
        .news-card {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: var(--transition);
            height: 100%;
        }
        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        .news-date {
            position: absolute;
            top: 1rem;
            left: 1rem;
            background: var(--secondary);
            color: white;
            padding: 0.3rem 0.8rem;
            border-radius: 4px;
            font-size: 0.9rem;
            font-weight: 600;
        }
        .timeline {
            position: relative;
            padding-left: 2rem;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 7px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--primary);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2rem;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -2rem;
            top: 5px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--secondary);
            border: 2px solid white;
            box-shadow: 0 0 0 3px var(--primary);
        }