/* 公共CSS - 导航与底部 */
        :root {
            --primary-color: #1a2b4c;
            --secondary-color: #d4af37;
            --accent-color: #3a506b;
            --light-color: #f8f9fa;
            --dark-color: #121212;
            --text-color: #444;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
            --gradient: linear-gradient(135deg, #1a2b4c 0%, #3a506b 100%);
            --gradient-gold: linear-gradient(135deg, #d4af37 0%, #f4d03f 100%);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            line-height: 1.6;
            color: var(--text-color);
            overflow-x: hidden;
            background-color: #f8f9fa;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 导航栏样式 */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: rgba(26, 43, 76, 0.95);
            box-shadow: var(--shadow);
            z-index: 1000;
            transition: var(--transition);
            backdrop-filter: blur(10px);
        }
        
        .navbar.scrolled {
            background-color: rgba(26, 43, 76, 0.98);
            padding: 5px 0;
        }
        
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
            position: relative;
        }
        
        .logo img {
            height: 50px;
            width: auto;
        }
        
        .logo-text {
            color: white;
            font-size: 1.5rem;
            font-weight: 700;
            margin-left: 10px;
            background: linear-gradient(90deg, #b8860b, #d4af37, #ffd700, #daa520, #b8860b);
            background-size: 200% 100%;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            animation: shimmer 5s infinite linear;
        }
        
        @keyframes shimmer {
            0% {
                background-position: 200% 0;
            }
            100% {
                background-position: -200% 0;
            }
        }
        
        .nav-menu {
            display: flex;
            list-style: none;
        }
        
        .nav-item {
            margin-left: 25px;
        }
        
        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        
        .nav-link:hover {
            color: var(--secondary-color);
        }
        
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--secondary-color);
            transition: var(--transition);
        }
        
        .nav-link:hover::after {
            width: 100%;
        }
        
        .phone-number {
            display: flex;
            align-items: center;
            color: white;
            font-weight: 600;
        }
        
        .phone-number i {
            margin-right: 8px;
            color: var(--secondary-color);
        }
        
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        
        /* 底部样式 */
        footer {
            background-color: var(--primary-color);
            color: white;
            padding: 60px 0 20px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 40px;
        }
        
        .footer-column h3 {
            color: var(--secondary-color);
            margin-bottom: 20px;
            font-size: 1.2rem;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background-color: var(--secondary-color);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a {
            color: #ddd;
            text-decoration: none;
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        
        .contact-info {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .contact-info i {
            margin-right: 10px;
            color: var(--secondary-color);
            width: 20px;
        }
        
        .qrcode {
            text-align: center;
        }
        
        .qrcode img {
            width: 120px;
            height: 120px;
            border: 1px solid #ddd;
            margin-bottom: 10px;
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #aaa;
            margin-bottom: 20px;
        }
        
        /* 友情链接样式 */
        .friend-links {
            background-color: rgba(255, 255, 255, 0.05);
            padding: 20px 0;
            margin-top: 20px;
        }
        
        .friend-links-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
        }
        
        .friend-link {
            color: #ddd;
            text-decoration: none;
            transition: var(--transition);
            padding: 5px 10px;
            border-radius: 4px;
        }
        
        .friend-link:hover {
            color: var(--secondary-color);
            background-color: rgba(255, 255, 255, 0.1);
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            
            .nav-menu {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 70px);
                background-color: var(--primary-color);
                flex-direction: column;
                align-items: center;
                padding-top: 40px;
                transition: var(--transition);
            }
            
            .nav-menu.active {
                left: 0;
            }
            
            .nav-item {
                margin: 15px 0;
            }
        }
        
        @media (max-width: 576px) {
            .footer-content {
                grid-template-columns: 1fr;
            }
        }