:root {
            --primary-color: #1a365d;
            --secondary-color: #e53e3e;
            --accent-color: #38a169;
            --light-bg: #f7fafc;
            --dark-text: #2d3748;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--dark-text);
            line-height: 1.6;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(26, 54, 93, 0.9), rgba(26, 54, 93, 0.8)), url('https://images.unsplash.com/photo-1551958219-acbc608c6377?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') no-repeat center center/cover;
            color: white;
            padding: 6rem 0;
        }
        .section-title {
            color: var(--primary-color);
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 0.5rem;
            margin-bottom: 2rem;
            display: inline-block;
        }
        .feature-card {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: none;
            border-radius: 10px;
            overflow: hidden;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .feature-icon {
            font-size: 2.5rem;
            color: var(--secondary-color);
            margin-bottom: 1rem;
        }
        .live-score {
            background-color: var(--light-bg);
            border-left: 5px solid var(--accent-color);
            padding: 1rem;
            border-radius: 5px;
            margin-bottom: 1rem;
        }
        .data-stat {
            font-size: 2rem;
            font-weight: bold;
            color: var(--primary-color);
        }
        .analysis-card {
            border-top: 4px solid var(--accent-color);
        }
        .contact-info li {
            margin-bottom: 0.75rem;
        }
        .contact-info i {
            color: var(--secondary-color);
            width: 1.5rem;
        }
        .friendlink .flink {
            display: inline-block;
            background: var(--light-bg);
            padding: 0.5rem 1.5rem;
            margin: 0.5rem;
            border-radius: 30px;
            text-decoration: none;
            color: var(--primary-color);
            transition: all 0.3s ease;
            border: 1px solid #cbd5e0;
        }
        .friendlink .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: scale(1.05);
        }
        footer {
            background-color: var(--primary-color);
            color: white;
        }
        .footer-link {
            color: #cbd5e0;
            text-decoration: none;
        }
        .footer-link:hover {
            color: white;
            text-decoration: underline;
        }
        .btn-primary {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
        }
        .btn-primary:hover {
            background-color: #c53030;
            border-color: #c53030;
        }
        .sticky-nav {
            position: sticky;
            top: 0;
            z-index: 1020;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        .content-area p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .img-fluid {
            border-radius: 8px;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 4rem 0;
            }
            .data-stat {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
        }