:root {
            --primary-color: #d4af37;
            --secondary-color: #1a365d;
            --accent-color: #c53030;
        }
        
        body {
            font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
            color: #333;
            line-height: 1.6;
        }
        
        .navbar-brand {
            font-weight: 700;
            color: var(--primary-color) !important;
            font-size: 1.8rem;
        }
        
        .hero-section {
            background: linear-gradient(rgba(26, 54, 93, 0.85), rgba(26, 54, 93, 0.9)), url('5.png');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 100px 0;
        }
        
        .section-title {
            color: var(--secondary-color);
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 30px;
        }
        
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background-color: var(--primary-color);
        }
        
        .feature-card {
            border: none;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease;
            height: 100%;
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
        }
        
        .feature-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
        }
        
        .product-card {
            border: 1px solid #eaeaea;
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        
        .product-card:hover {
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        .product-header {
            background-color: var(--secondary-color);
            color: white;
            padding: 15px;
            text-align: center;
        }
        
        .accordion-button:not(.collapsed) {
            background-color: rgba(212, 175, 55, 0.1);
            color: var(--secondary-color);
            font-weight: 600;
        }
        
        .accordion-button:focus {
            box-shadow: 0 0 0 0.25rem rgba(212, 175, 55, 0.25);
        }
        
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }
        
        .btn-primary:hover {
            background-color: #b8941f;
            border-color: #b8941f;
        }
        
        .footer {
            background-color: var(--secondary-color);
            color: #ddd;
            padding: 60px 0 30px;
        }
        
        .footer a {
            color: #ddd;
            text-decoration: none;
        }
        
        .footer a:hover {
            color: var(--primary-color);
        }
        
        .footer-title {
            color: white;
            font-size: 1.2rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background-color: var(--primary-color);
        }
        
        .copyright {
            background-color: rgba(0, 0, 0, 0.2);
            padding: 20px 0;
            margin-top: 40px;
            font-size: 0.9rem;
        }
        
        .gold-text {
            color: var(--primary-color);
        }
        
        .badge-gold {
            background-color: var(--primary-color);
        }
        
        .contact-info li {
            margin-bottom: 10px;
        }
        
        .contact-info i {
            color: var(--primary-color);
            margin-right: 10px;
        }
        
        @media (max-width: 768px) {
            .hero-section {
                padding: 60px 0;
            }
            
            .display-4 {
                font-size: 2.2rem;
            }
        }