:root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #f59e0b;
            --light-color: #f8fafc;
            --dark-color: #0f172a;
            --gray-color: #64748b;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.6;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--dark-color);
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            padding: 1rem 0;
            transition: all 0.3s ease;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color);
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .nav-link {
            font-weight: 600;
            color: var(--dark-color);
            margin: 0 0.5rem;
            transition: color 0.3s;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--secondary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(15, 23, 42, 0.85), rgba(30, 58, 138, 0.9)), url('https://images.unsplash.com/photo-1556056504-5c7696c4c28d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
            color: white;
            padding: 8rem 0 6rem;
            position: relative;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
        }
        .hero-subtitle {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 2.5rem;
            opacity: 0.9;
        }
        .btn-primary-custom {
            background: linear-gradient(135deg, var(--secondary-color), #b91c1c);
            border: none;
            padding: 0.8rem 2.5rem;
            font-weight: 700;
            border-radius: 50px;
            transition: all 0.3s ease;
            color: white;
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(220, 38, 38, 0.3);
        }
        .section-padding {
            padding: 5rem 0;
        }
        .section-title {
            position: relative;
            margin-bottom: 3.5rem;
            text-align: center;
        }
        .section-title:after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            border-radius: 2px;
        }
        .card-custom {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
            transition: transform 0.4s, box-shadow 0.4s;
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
        }
        .card-img-top {
            height: 220px;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .card-custom:hover .card-img-top {
            transform: scale(1.05);
        }
        .icon-box {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-color), #3b82f6);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: white;
            font-size: 1.8rem;
        }
        .feature-box {
            padding: 2.5rem 1.5rem;
            border-radius: 15px;
            background: white;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
            height: 100%;
            transition: all 0.3s;
        }
        .feature-box:hover {
            background: linear-gradient(135deg, #f8fafc, #e2e8f0);
        }
        .stats-box {
            text-align: center;
            padding: 2rem;
            border-radius: 15px;
            background: white;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
        }
        .stats-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-color);
            line-height: 1;
        }
        .analysis-section {
            background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
            border-radius: 20px;
            padding: 3.5rem;
            margin: 3rem 0;
        }
        @media (max-width: 768px) {
            .analysis-section {
                padding: 2rem;
            }
        }
        .prediction-card {
            background: white;
            border-radius: 15px;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            border-left: 6px solid var(--secondary-color);
        }
        .table-custom {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .table-custom thead th {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 1rem;
        }
        .table-custom tbody tr:hover {
            background-color: #f1f5f9;
        }
        .form-control-custom {
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            padding: 0.8rem 1.2rem;
            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);
        }
        .footer {
            background-color: var(--dark-color);
            color: #cbd5e1;
            padding: 4rem 0 2rem;
        }
        .footer a {
            color: #cbd5e1;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .friendlink {
            background-color: #f8fafc;
            padding: 3rem 0;
            border-top: 1px solid #e2e8f0;
            border-bottom: 1px solid #e2e8f0;
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 0.8rem 1.8rem;
            margin: 0.5rem;
            border-radius: 50px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            color: var(--dark-color);
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s;
            border: 2px solid transparent;
        }
        .flink:hover {
            border-color: var(--primary-color);
            color: var(--primary-color);
            transform: translateY(-3px);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--secondary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            text-decoration: none;
            box-shadow: 0 5px 15px rgba(220, 38, 38, 0.4);
            z-index: 1000;
            opacity: 0;
            transition: opacity 0.3s, transform 0.3s;
        }
        .back-to-top.show {
            opacity: 1;
        }
        .back-to-top:hover {
            transform: translateY(-5px);
            color: white;
        }
        .article-content {
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .article-content h3 {
            margin-top: 2.5rem;
            margin-bottom: 1.2rem;
            color: var(--primary-color);
        }
        .article-content p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fef3c7;
            padding: 1.5rem;
            border-radius: 10px;
            border-left: 5px solid var(--accent-color);
            margin: 2rem 0;
        }
        .player-card {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s;
        }
        .player-card:hover {
            transform: translateY(-8px);
        }
        .timeline {
            position: relative;
            padding-left: 2rem;
        }
        .timeline:before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--primary-color);
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2.5rem;
            padding-left: 1.5rem;
        }
        .timeline-item:before {
            content: '';
            position: absolute;
            left: -2.5rem;
            top: 0.5rem;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--secondary-color);
            border: 3px solid white;
            box-shadow: 0 0 0 3px var(--secondary-color);
        }