:root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #fbbf24;
            --dark-color: #0f172a;
            --light-color: #f8fafc;
            --text-dark: #334155;
            --text-light: #64748b;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            color: var(--text-dark);
            line-height: 1.8;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--dark-color);
        }
        .navbar {
            background-color: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(10px);
            padding: 1rem 0;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .navbar-brand {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--light-color) !important;
        }
        .navbar-brand span {
            color: var(--accent-color);
        }
        .nav-link {
            color: #cbd5e1 !important;
            font-weight: 600;
            margin: 0 0.5rem;
            transition: color 0.3s;
            position: relative;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--accent-color) !important;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-color);
            transition: width 0.3s;
        }
        .nav-link:hover::after, .nav-link.active::after {
            width: 100%;
        }
        .hero-section {
            background: linear-gradient(135deg, var(--dark-color) 0%, var(--primary-color) 100%);
            color: white;
            padding: 8rem 0 6rem;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23fbbf24" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,112C672,96,768,96,864,112C960,128,1056,160,1152,160C1248,160,1344,128,1392,112L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom center;
            background-size: cover;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
        }
        .hero-subtitle {
            font-size: 1.3rem;
            opacity: 0.9;
            margin-bottom: 2.5rem;
            max-width: 700px;
        }
        .btn-primary-custom {
            background: linear-gradient(to right, var(--secondary-color), #ef4444);
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s;
            box-shadow: 0 4px 15px rgba(220, 38, 38, 0.4);
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(220, 38, 38, 0.6);
        }
        .section-title {
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 3rem;
            text-align: center;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: linear-gradient(to right, var(--primary-color), var(--accent-color));
            border-radius: 2px;
        }
        .feature-card {
            background: white;
            border-radius: 15px;
            padding: 2rem;
            height: 100%;
            transition: all 0.3s ease;
            border: 1px solid #e2e8f0;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
            border-color: var(--accent-color);
        }
        .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: 15px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s;
            border: 1px solid #e2e8f0;
        }
        .prediction-card:hover {
            transform: translateY(-5px);
        }
        .match-header {
            background: var(--dark-color);
            color: white;
            padding: 1rem;
            text-align: center;
        }
        .match-teams {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.5rem;
        }
        .team {
            text-align: center;
            flex: 1;
        }
        .team-logo {
            width: 60px;
            height: 60px;
            background: #f1f5f9;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 0.5rem;
            color: var(--primary-color);
            font-size: 1.5rem;
        }
        .vs {
            font-weight: 800;
            color: var(--secondary-color);
            font-size: 1.2rem;
            margin: 0 1rem;
        }
        .prediction-result {
            background: #f8fafc;
            padding: 1.5rem;
            border-top: 1px solid #e2e8f0;
        }
        .probability-bar {
            height: 8px;
            background: #cbd5e1;
            border-radius: 4px;
            overflow: hidden;
            margin: 0.8rem 0;
        }
        .probability-fill {
            height: 100%;
            background: linear-gradient(to right, #10b981, #34d399);
            border-radius: 4px;
        }
        .data-stats {
            background: linear-gradient(135deg, #0f172a, #1e293b);
            color: white;
            padding: 5rem 0;
            position: relative;
            overflow: hidden;
        }
        .stat-item {
            text-align: center;
            padding: 1.5rem;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--accent-color);
            margin-bottom: 0.5rem;
        }
        .flink {
            display: inline-block;
            background: #f1f5f9;
            color: var(--text-dark);
            padding: 0.6rem 1.5rem;
            border-radius: 50px;
            margin: 0.5rem;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            border: 1px solid #cbd5e1;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
            border-color: var(--primary-color);
        }
        .friendlink {
            background: #f8fafc;
            padding: 4rem 0;
        }
        footer {
            background: var(--dark-color);
            color: #cbd5e1;
            padding: 4rem 0 2rem;
        }
        .footer-links h5 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            display: block;
            margin-bottom: 0.7rem;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: var(--accent-color);
        }
        .copyright {
            border-top: 1px solid #334155;
            padding-top: 2rem;
            margin-top: 3rem;
            text-align: center;
            font-size: 0.9rem;
        }
        .contact-info i {
            color: var(--accent-color);
            margin-right: 10px;
            width: 20px;
        }
        .article-card {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            height: 100%;
            transition: transform 0.3s;
            background: white;
        }
        .article-card:hover {
            transform: translateY(-5px);
        }
        .article-img {
            height: 200px;
            background-color: #e2e8f0;
            background-size: cover;
            background-position: center;
        }
        .article-content {
            padding: 1.5rem;
        }
        .badge-custom {
            background: var(--primary-color);
            color: white;
            padding: 0.3rem 0.8rem;
            border-radius: 50px;
            font-size: 0.8rem;
        }
        .tool-card {
            background: white;
            border-radius: 15px;
            padding: 2rem;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            height: 100%;
            transition: all 0.3s;
            border: 1px solid #e2e8f0;
        }
        .tool-card:hover {
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
            border-color: var(--primary-color);
        }
        .tool-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .modal-content {
            border-radius: 15px;
            overflow: hidden;
            border: none;
        }
        .form-control-custom {
            border-radius: 10px;
            padding: 0.8rem 1rem;
            border: 1px solid #cbd5e1;
            transition: all 0.3s;
        }
        .form-control-custom:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(30, 58, 138, 0.25);
        }
        .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;
            text-decoration: none;
            font-size: 1.2rem;
            z-index: 1000;
            opacity: 0;
            transition: all 0.3s;
            box-shadow: 0 4px 12px rgba(30, 58, 138, 0.3);
        }
        .back-to-top.active {
            opacity: 1;
        }
        .back-to-top:hover {
            background: var(--secondary-color);
            transform: translateY(-3px);
        }
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .animate-fade-in-up {
            animation: fadeInUp 0.8s ease-out;
        }
        .article-img-1 { background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), url('https://images.unsplash.com/photo-1575361204480-aadea25e6e68?ixlib=rb-4.0.3&auto=format&fit=crop&w=800&q=80'); }
        .article-img-2 { background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), url('https://images.unsplash.com/photo-1522778119026-d647f0596c20?ixlib=rb-4.0.3&auto=format&fit=crop&w=800&q=80'); }
        .article-img-3 { background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), url('https://images.unsplash.com/photo-1577223625818-75bc1f2ac0e5?ixlib=rb-4.0.3&auto=format&fit=crop&w=800&q=80'); }
        .article-img-4 { background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), url('https://images.unsplash.com/photo-1540747913346-19e32dc3e97e?ixlib=rb-4.0.3&auto=format&fit=crop&w=800&q=80'); }
        .article-img-5 { background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), url('https://images.unsplash.com/photo-1551958219-acbc608c6377?ixlib=rb-4.0.3&auto=format&fit=crop&w=800&q=80'); }
        .article-img-6 { background-image: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), url('https://images.unsplash.com/photo-1519861531473-920034658307?ixlib=rb-4.0.3&auto=format&fit=crop&w=800&q=80'); }