:root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #f59e0b;
            --light-bg: #f8fafc;
            --dark-text: #1f2937;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--dark-text);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-section {
            background: linear-gradient(rgba(0, 0, 50, 0.8), rgba(0, 0, 30, 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;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 3rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
            border-radius: 2px;
        }
        .card-hover {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .card-hover:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        .live-badge {
            animation: pulse 2s infinite;
            border-radius: 50px;
        }
        @keyframes pulse {
            0% { opacity: 1; }
            50% { opacity: 0.7; }
            100% { opacity: 1; }
        }
        .flink {
            display: inline-block;
            padding: 10px 20px;
            margin: 8px;
            background: var(--light-bg);
            border-radius: 8px;
            text-decoration: none;
            color: var(--primary-color);
            border: 1px solid #e5e7eb;
            transition: all 0.3s;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: scale(1.05);
        }
        .footer {
            background: #111827;
            color: #d1d5db;
        }
        .form-control:focus {
            border-color: var(--accent-color);
            box-shadow: 0 0 0 0.25rem rgba(245, 158, 11, 0.25);
        }
        .btn-primary {
            background: var(--primary-color);
            border: none;
            padding: 10px 25px;
        }
        .btn-primary:hover {
            background: #1e40af;
        }
        .stats-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--secondary-color);
        }
        .analysis-box {
            border-left: 5px solid var(--accent-color);
            padding-left: 20px;
            background: #fef3c7;
            border-radius: 0 10px 10px 0;
        }
        @media (max-width: 768px) {
            .hero-section { padding: 5rem 0; }
            .section-title { font-size: 1.8rem; }
            .stats-number { font-size: 2.2rem; }
        }