:root {
            --primary-color: #1a5fb4;
            --secondary-color: #e6a23c;
            --dark-color: #1e1e2d;
            --light-color: #f8f9fa;
            --success-color: #67c23a;
            --danger-color: #f56c6c;
            --transition: all 0.3s ease;
        }
        body {
            font-family: "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color);
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(26, 95, 180, 0.85), rgba(30, 30, 45, 0.9)), url('https://images.unsplash.com/photo-1575361204480-aadea25e6e68?ixlib=rb-4.0.3&auto=format&fit=crop&w=2071&q=80') no-repeat center center;
            background-size: cover;
            color: white;
            padding: 120px 0 80px;
            position: relative;
        }
        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.2rem;
            }
        }
        .hero-subtitle {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            max-width: 800px;
            opacity: 0.9;
        }
        .section-title {
            position: relative;
            margin-bottom: 3rem;
            text-align: center;
            color: var(--dark-color);
        }
        .section-title:after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            border-radius: 2px;
        }
        .feature-card {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            height: 100%;
            transition: var(--transition);
            border: 1px solid #eee;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.12);
        }
        .feature-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--primary-color), #2d8cf0);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: white;
            font-size: 1.8rem;
        }
        .prediction-card {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0,0,0,0.08);
            transition: var(--transition);
            height: 100%;
        }
        .prediction-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.12);
        }
        .match-header {
            background: var(--dark-color);
            color: white;
            padding: 1rem;
            text-align: center;
            font-weight: 600;
        }
        .match-teams {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.5rem;
        }
        .team {
            display: flex;
            flex-direction: column;
            align-items: center;
            width: 40%;
        }
        .team-logo {
            width: 60px;
            height: 60px;
            background: #f5f5f5;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 0.5rem;
            font-size: 1.5rem;
            color: var(--dark-color);
        }
        .vs {
            font-weight: 700;
            color: var(--secondary-color);
            font-size: 1.2rem;
        }
        .prediction-result {
            background: #f8f9fa;
            padding: 1.5rem;
            border-top: 1px solid #eee;
        }
        .accuracy-badge {
            display: inline-block;
            background: var(--success-color);
            color: white;
            padding: 0.25rem 0.8rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
        }
        .stats-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        .stats-card {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            text-align: center;
            box-shadow: 0 8px 20px rgba(0,0,0,0.06);
            height: 100%;
            transition: var(--transition);
        }
        .stats-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 25px rgba(0,0,0,0.1);
        }
        .team-member {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0,0,0,0.08);
            transition: var(--transition);
            height: 100%;
        }
        .team-member:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.12);
        }
        .member-img {
            height: 250px;
            background-size: cover;
            background-position: center;
        }
        .member-info {
            padding: 1.5rem;
        }
        .news-card {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0,0,0,0.06);
            transition: var(--transition);
            height: 100%;
        }
        .news-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 25px rgba(0,0,0,0.1);
        }
        .news-img {
            height: 200px;
            background-size: cover;
            background-position: center;
        }
        .news-content {
            padding: 1.5rem;
        }
        .news-date {
            color: #888;
            font-size: 0.9rem;
            margin-bottom: 0.5rem;
        }
        .btn-primary-custom {
            background: linear-gradient(to right, var(--primary-color), #2d8cf0);
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary-custom:hover {
            background: linear-gradient(to right, #1557a0, #1a7de0);
            transform: translateY(-3px);
            box-shadow: 0 8px 15px rgba(26, 95, 180, 0.3);
        }
        .btn-secondary-custom {
            background: var(--secondary-color);
            border: none;
            color: white;
            padding: 0.8rem 2rem;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-secondary-custom:hover {
            background: #d4881b;
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 8px 15px rgba(230, 162, 60, 0.3);
        }
        .contact-info {
            background: var(--dark-color);
            color: white;
            border-radius: 12px;
            padding: 2.5rem;
            height: 100%;
        }
        .contact-icon {
            width: 50px;
            height: 50px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            font-size: 1.2rem;
            color: var(--secondary-color);
        }
        .form-control-custom {
            border-radius: 8px;
            padding: 0.9rem 1.2rem;
            border: 1px solid #ddd;
            transition: var(--transition);
        }
        .form-control-custom:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(26, 95, 180, 0.25);
        }
        .footer {
            background: var(--dark-color);
            color: #aaa;
            padding: 3rem 0 1.5rem;
        }
        .footer-title {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
            font-weight: 600;
        }
        .footer-links a {
            color: #aaa;
            text-decoration: none;
            display: block;
            margin-bottom: 0.8rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        .copyright {
            border-top: 1px solid #444;
            padding-top: 1.5rem;
            margin-top: 2rem;
            text-align: center;
            font-size: 0.9rem;
        }
        .friendlink {
            background: #f8f9fa;
            padding: 3rem 0;
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 0.8rem 1.5rem;
            border-radius: 8px;
            margin: 0.5rem;
            text-decoration: none;
            color: #333;
            border: 1px solid #eee;
            transition: var(--transition);
            font-weight: 500;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .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;
            text-decoration: none;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 1000;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background: #1557a0;
            color: white;
            transform: translateY(-5px);
        }
        .navbar-nav .nav-link {
            font-weight: 500;
            margin: 0 0.5rem;
            transition: var(--transition);
        }
        .navbar-nav .nav-link:hover, .navbar-nav .nav-link.active {
            color: var(--primary-color);
        }
        .navbar-scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
            padding-top: 0.5rem;
            padding-bottom: 0.5rem;
        }