:root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #fbbf24;
            --text-dark: #1f2937;
            --text-light: #6b7280;
            --light-bg: #f8fafc;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            color: var(--text-dark);
            line-height: 1.7;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary-color) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(30, 58, 138, 0.85), rgba(220, 38, 38, 0.8)), url('https://images.unsplash.com/photo-1556056504-5c7696c4c28d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 8rem 0;
        }
        .stat-card {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: none;
            border-radius: 12px;
            overflow: hidden;
        }
        .stat-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        .match-prediction {
            background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
            color: white;
            border-radius: 16px;
            padding: 2.5rem;
        }
        .team-flag {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            object-fit: cover;
            border: 4px solid white;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }
        .live-score {
            background-color: #fef3c7;
            border-left: 5px solid var(--accent-color);
            padding: 1.5rem;
            border-radius: 0 12px 12px 0;
        }
        .analysis-section {
            background-color: var(--light-bg);
            padding: 5rem 0;
        }
        .tab-content {
            padding: 2rem;
            background: white;
            border-radius: 0 0 12px 12px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .nav-tabs .nav-link {
            font-weight: 600;
            color: var(--text-light);
            border: none;
            padding: 1rem 2rem;
        }
        .nav-tabs .nav-link.active {
            color: var(--primary-color);
            border-bottom: 3px solid var(--primary-color);
            background: transparent;
        }
        .history-table th {
            background-color: var(--primary-color);
            color: white;
            border: none;
        }
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(30, 58, 138, 0.25);
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 0.75rem 2rem;
            font-weight: 600;
        }
        .btn-primary:hover {
            background-color: #1d4ed8;
            border-color: #1d4ed8;
        }
        .footer {
            background-color: #111827;
            color: #d1d5db;
        }
        .friendlink a.flink {
            color: var(--primary-color);
            text-decoration: none;
            padding: 0.5rem 1rem;
            background: #eff6ff;
            border-radius: 6px;
            transition: all 0.3s;
            display: inline-block;
            margin: 0.25rem;
        }
        .friendlink a.flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-2px);
        }
        .icon-box {
            width: 60px;
            height: 60px;
            background: #eff6ff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: var(--primary-color);
            font-size: 1.5rem;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 5rem 0;
                text-align: center;
            }
            .team-flag {
                width: 60px;
                height: 60px;
            }
            .match-prediction {
                padding: 1.5rem;
            }
        }
        .sticky-nav {
            position: sticky;
            top: 0;
            z-index: 1020;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }
        .progress-bar {
            background-color: var(--secondary-color);
        }
        .accordion-button:not(.collapsed) {
            background-color: #eff6ff;
            color: var(--primary-color);
        }
        .accordion-button:focus {
            box-shadow: 0 0 0 0.25rem rgba(30, 58, 138, 0.25);
            border-color: var(--primary-color);
        }