:root {
            --primary-blue: #0d6efd;
            --secondary-blue: #0b5ed7;
            --dark-blue: #084298;
            --light-gray: #f8f9fa;
            --medium-gray: #e9ecef;
            --text-dark: #212529;
            --accent-orange: #fd7e14;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--text-dark);
            overflow-x: hidden;
            line-height: 1.7;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.98);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            padding-top: 0.8rem;
            padding-bottom: 0.8rem;
            transition: all 0.3s ease;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            background: linear-gradient(to right, var(--primary-blue), var(--dark-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .nav-link {
            font-weight: 600;
            color: var(--text-dark) !important;
            margin: 0 0.5rem;
            position: relative;
            transition: color 0.3s;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-blue) !important;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            background: var(--primary-blue);
            left: 0;
            bottom: -5px;
            transition: width 0.3s;
        }
        .nav-link:hover::after, .nav-link.active::after {
            width: 100%;
        }
        .hero-section {
            background: linear-gradient(rgba(13, 110, 253, 0.85), rgba(8, 66, 152, 0.9)), url('https://images.unsplash.com/photo-1575361204480-aadea25e6e68?ixlib=rb-4.0.3&auto=format&fit=crop&w=2071&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 8rem 0 6rem;
            margin-top: 76px;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
        }
        .hero-subtitle {
            font-size: 1.4rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }
        .btn-primary {
            background-color: var(--primary-blue);
            border-color: var(--primary-blue);
            padding: 0.8rem 2rem;
            font-weight: 600;
            border-radius: 50px;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background-color: var(--secondary-blue);
            border-color: var(--secondary-blue);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(13, 110, 253, 0.3);
        }
        .section-padding {
            padding: 5rem 0;
        }
        .section-title {
            position: relative;
            margin-bottom: 3rem;
            text-align: center;
        }
        .section-title::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 5px;
            background: var(--primary-blue);
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            border-radius: 5px;
        }
        .card {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: transform 0.4s, box-shadow 0.4s;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
        }
        .card-img-top {
            height: 220px;
            object-fit: cover;
        }
        .feature-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(to right, var(--primary-blue), var(--dark-blue));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: white;
            font-size: 1.8rem;
        }
        .stats-counter {
            background: linear-gradient(to right, var(--primary-blue), var(--dark-blue));
            color: white;
            padding: 4rem 0;
        }
        .counter-item {
            text-align: center;
        }
        .counter-number {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 0.5rem;
        }
        .counter-text {
            font-size: 1.2rem;
            opacity: 0.9;
        }
        .team-member {
            text-align: center;
            margin-bottom: 2rem;
        }
        .team-img {
            width: 180px;
            height: 180px;
            border-radius: 50%;
            object-fit: cover;
            border: 5px solid var(--medium-gray);
            margin-bottom: 1.5rem;
            transition: all 0.3s;
        }
        .team-member:hover .team-img {
            border-color: var(--primary-blue);
        }
        .news-card {
            border-left: 5px solid var(--primary-blue);
            padding-left: 1.5rem;
            margin-bottom: 2rem;
        }
        .news-date {
            color: var(--primary-blue);
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .contact-info {
            background-color: var(--light-gray);
            padding: 2.5rem;
            border-radius: 15px;
            height: 100%;
        }
        .contact-icon {
            width: 50px;
            height: 50px;
            background-color: var(--primary-blue);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            margin-right: 1rem;
            font-size: 1.2rem;
        }
        .form-control, .form-select {
            padding: 0.8rem 1rem;
            border-radius: 10px;
            border: 1px solid #ced4da;
            margin-bottom: 1.5rem;
        }
        .form-control:focus, .form-select:focus {
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
        }
        .footer {
            background-color: #1a1a1a;
            color: #e0e0e0;
            padding: 4rem 0 2rem;
        }
        .footer-title {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-link {
            color: #b0b0b0;
            text-decoration: none;
            display: block;
            margin-bottom: 0.8rem;
            transition: color 0.3s;
        }
        .footer-link:hover {
            color: white;
            text-decoration: underline;
        }
        .copyright {
            border-top: 1px solid #333;
            padding-top: 2rem;
            margin-top: 3rem;
            text-align: center;
            color: #999;
            font-size: 0.9rem;
        }
        .flink {
            background-color: white;
            padding: 1rem 1.5rem;
            border-radius: 10px;
            display: inline-block;
            margin: 0.5rem;
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 600;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s;
        }
        .flink:hover {
            background-color: var(--primary-blue);
            color: white;
            transform: translateY(-5px);
        }
        .friendlink {
            background-color: var(--light-gray);
            padding: 4rem 0;
        }
        .prediction-card {
            border-top: 5px solid var(--accent-orange);
            background: linear-gradient(to bottom, white, #f8f9fa);
        }
        .prediction-odds {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-blue);
        }
        .match-highlight {
            background-color: rgba(13, 110, 253, 0.05);
            border-left: 5px solid var(--primary-blue);
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .data-visualization {
            height: 300px;
            background: linear-gradient(135deg, #f8f9fa, #e9ecef);
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 2rem 0;
            position: relative;
            overflow: hidden;
        }
        .data-bar {
            position: absolute;
            bottom: 0;
            width: 40px;
            background: linear-gradient(to top, var(--primary-blue), var(--dark-blue));
            border-radius: 5px 5px 0 0;
            transition: height 1s ease;
        }
        .data-bar:nth-child(1) {
            left: 20%;
            height: 65%;
        }
        .data-bar:nth-child(2) {
            left: 30%;
            height: 80%;
        }
        .data-bar:nth-child(3) {
            left: 40%;
            height: 45%;
        }
        .data-bar:nth-child(4) {
            left: 50%;
            height: 75%;
        }
        .data-bar:nth-child(5) {
            left: 60%;
            height: 60%;
        }
        .data-bar:nth-child(6) {
            left: 70%;
            height: 90%;
        }
        .data-label {
            position: absolute;
            bottom: -25px;
            text-align: center;
            width: 40px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        @media (max-width: 992px) {
            .hero-title {
                font-size: 2.8rem;
            }
            .hero-subtitle {
                font-size: 1.2rem;
            }
            .section-padding {
                padding: 4rem 0;
            }
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.3rem;
            }
            .counter-number {
                font-size: 2.8rem;
            }
            .navbar-nav {
                text-align: center;
                padding-top: 1rem;
            }
        }
        @media (max-width: 576px) {
            .hero-title {
                font-size: 2rem;
            }
            .section-padding {
                padding: 3rem 0;
            }
            .card-img-top {
                height: 180px;
            }
        }