:root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #f59e0b;
            --light-color: #f8fafc;
            --dark-color: #0f172a;
            --text-color: #334155;
        }
        body {
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            color: var(--text-color);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .navbar {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
            padding: 1rem 0;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary-color);
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .nav-link {
            font-weight: 500;
            color: var(--dark-color);
            margin: 0 0.5rem;
            transition: color 0.3s;
        }
        .nav-link:hover {
            color: var(--secondary-color);
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary-color) 0%, #1e40af 100%);
            color: white;
            padding: 6rem 0 5rem;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="%23f59e0b" stroke-width="2" opacity="0.2"/></svg>') no-repeat;
            top: 10%;
            right: 10%;
        }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        .hero-subtitle {
            font-size: 1.25rem;
            opacity: 0.9;
            margin-bottom: 2rem;
        }
        .section-title {
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 3rem;
            font-weight: 700;
            color: var(--dark-color);
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
        }
        .section-title.center::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .feature-card {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            height: 100%;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
            transition: transform 0.3s, box-shadow 0.3s;
            border: 1px solid #e2e8f0;
        }
        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.1);
        }
        .feature-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--primary-color), #3b82f6);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: white;
            font-size: 1.8rem;
        }
        .prediction-card {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            transition: all 0.3s;
            height: 100%;
        }
        .prediction-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
        }
        .prediction-header {
            background: linear-gradient(90deg, var(--primary-color), #2563eb);
            color: white;
            padding: 1.5rem;
            text-align: center;
        }
        .team-flag {
            width: 60px;
            height: 40px;
            object-fit: cover;
            border-radius: 4px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }
        .vs-text {
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--accent-color);
        }
        .prediction-score {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--secondary-color);
        }
        .stat-item {
            text-align: center;
            padding: 1.5rem;
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
            line-height: 1;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-color);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-top: 0.5rem;
        }
        .article-card {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            transition: all 0.3s;
            height: 100%;
        }
        .article-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 24px rgba(0, 0, 0, 0.1);
        }
        .article-img {
            height: 220px;
            width: 100%;
            object-fit: cover;
        }
        .article-content {
            padding: 1.5rem;
        }
        .article-meta {
            font-size: 0.85rem;
            color: #64748b;
            margin-bottom: 0.8rem;
        }
        .article-title {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--dark-color);
        }
        .article-excerpt {
            color: var(--text-color);
            margin-bottom: 1.5rem;
        }
        .btn-primary {
            background: linear-gradient(90deg, var(--primary-color), #2563eb);
            border: none;
            padding: 0.75rem 2rem;
            font-weight: 600;
            border-radius: 8px;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
        }
        .btn-secondary {
            background: linear-gradient(90deg, var(--secondary-color), #ef4444);
            border: none;
            padding: 0.75rem 2rem;
            font-weight: 600;
            border-radius: 8px;
            transition: all 0.3s;
        }
        .btn-secondary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(220, 38, 38, 0.3);
        }
        .contact-info {
            background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
            border-radius: 12px;
            padding: 2.5rem;
            height: 100%;
        }
        .contact-icon {
            width: 60px;
            height: 60px;
            background: var(--primary-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .footer {
            background: var(--dark-color);
            color: white;
            padding: 4rem 0 2rem;
        }
        .footer-links h5 {
            color: white;
            margin-bottom: 1.5rem;
            font-weight: 600;
        }
        .footer-links ul {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #cbd5e1;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: white;
        }
        .copyright {
            border-top: 1px solid #334155;
            padding-top: 2rem;
            margin-top: 3rem;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        .friendlink {
            background: #f8fafc;
            padding: 4rem 0;
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 0.8rem 1.5rem;
            border-radius: 8px;
            margin: 0.5rem;
            color: var(--dark-color);
            text-decoration: none;
            font-weight: 500;
            border: 1px solid #e2e8f0;
            transition: all 0.3s;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
            transform: translateY(-3px);
        }
        .country-badge {
            background: linear-gradient(90deg, #ffd700, #ffed4e);
            color: #000;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            display: inline-block;
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
        }
        .match-countdown {
            background: linear-gradient(90deg, var(--secondary-color), #ef4444);
            color: white;
            padding: 1rem;
            border-radius: 8px;
            text-align: center;
            font-weight: 600;
            font-size: 1.2rem;
            margin: 2rem 0;
        }
        .accuracy-meter {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        .meter-bar {
            height: 12px;
            background: #e2e8f0;
            border-radius: 6px;
            overflow: hidden;
            margin: 1.5rem 0;
        }
        .meter-fill {
            height: 100%;
            background: linear-gradient(90deg, #10b981, #34d399);
            width: 78%;
            border-radius: 6px;
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .hero-section {
                padding: 4rem 0 3rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }
        .sticky-nav {
            position: sticky;
            top: 0;
            z-index: 1020;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background: var(--secondary-color);
            transform: translateY(-3px);
        }