:root {
            --primary-blue: #1a237e;
            --secondary-blue: #0d47a1;
            --accent-yellow: #ffd600;
            --light-bg: #f8f9fa;
            --dark-text: #212529;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--dark-text);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--primary-blue) !important;
        }
        .nav-link {
            font-weight: 500;
            margin: 0 0.5rem;
            transition: var(--transition);
        }
        .nav-link:hover, .nav-link.active {
            color: var(--secondary-blue) !important;
            transform: translateY(-1px);
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
            color: white;
            padding: 6rem 0 4rem;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('https://images.unsplash.com/photo-1575361204480-aadea25e6e68?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        .hero-section > * {
            position: relative;
            z-index: 1;
        }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
        }
        @media (max-width: 768px) {
            .hero-title { font-size: 2.5rem; }
        }
        .section-title {
            font-weight: 700;
            color: var(--primary-blue);
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 2.5rem;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 4px;
            background: var(--accent-yellow);
            border-radius: 2px;
        }
        .card-hover {
            transition: var(--transition);
            border: none;
            box-shadow: var(--shadow);
            height: 100%;
        }
        .card-hover:hover {
            transform: translateY(-10px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
        }
        .icon-box {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: white;
            font-size: 1.8rem;
        }
        .data-stat {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-blue);
            line-height: 1;
        }
        .team-flag {
            height: 40px;
            width: auto;
            border-radius: 2px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
            margin-right: 10px;
        }
        .live-badge {
            animation: pulse 1.5s infinite;
            border-radius: 20px;
            padding: 0.25rem 1rem;
            font-size: 0.85rem;
        }
        @keyframes pulse {
            0% { opacity: 1; }
            50% { opacity: 0.7; }
            100% { opacity: 1; }
        }
        .analysis-card {
            border-left: 5px solid var(--accent-yellow);
            background-color: #fefefe;
        }
        .friendlink .flink {
            background: var(--light-bg);
            border-radius: 8px;
            padding: 1rem 1.5rem;
            display: block;
            color: var(--dark-text);
            text-decoration: none;
            transition: var(--transition);
            border: 1px solid #dee2e6;
            text-align: center;
            font-weight: 500;
        }
        .friendlink .flink:hover {
            background: white;
            border-color: var(--secondary-blue);
            color: var(--secondary-blue);
            transform: scale(1.03);
        }
        footer {
            background-color: #0a1a3a;
            color: #b0bec5;
        }
        footer a {
            color: #b0bec5;
            text-decoration: none;
            transition: var(--transition);
        }
        footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .social-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: rgba(255,255,255,0.1);
            transition: var(--transition);
        }
        .social-icon:hover {
            background-color: var(--accent-yellow);
            color: var(--primary-blue);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--secondary-blue);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            text-decoration: none;
            z-index: 1000;
            box-shadow: var(--shadow);
            transition: var(--transition);
            opacity: 0;
            visibility: hidden;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background: var(--primary-blue);
            transform: translateY(-5px);
        }
        .form-control:focus {
            border-color: var(--secondary-blue);
            box-shadow: 0 0 0 0.25rem rgba(13, 71, 161, 0.25);
        }
        .btn-primary {
            background-color: var(--secondary-blue);
            border-color: var(--secondary-blue);
            padding: 0.6rem 2rem;
            font-weight: 500;
        }
        .btn-primary:hover {
            background-color: var(--primary-blue);
            border-color: var(--primary-blue);
        }
        .prediction-meter {
            height: 12px;
            border-radius: 6px;
            background-color: #e0e0e0;
            overflow: hidden;
        }
        .meter-fill {
            height: 100%;
            border-radius: 6px;
            background: linear-gradient(90deg, #4CAF50, #8BC34A);
            transition: width 1s ease;
        }
        .table-hover tbody tr:hover {
            background-color: rgba(13, 71, 161, 0.05);
        }
        .img-thumbnail {
            border-radius: 10px;
            transition: var(--transition);
        }
        .img-thumbnail:hover {
            transform: scale(1.02);
        }