/* 公共CSS - 导航与底部 */
        :root {
            --primary-color: #1a365d;
            --secondary-color: #2d4a8a;
            --accent-color: #d4af37;
            --light-color: #f8f9fa;
            --dark-color: #343a40;
            --text-color: #333;
            --text-light: #fff;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            color: var(--text-color);
            line-height: 1.6;
            overflow-x: hidden;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

        /* 导航栏样式 */
        header {
            background-color: var(--primary-color);
            box-shadow: var(--shadow);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }

        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }

        .logo {
            display: flex;
            align-items: center;
        }

        .logo-text {
            font-size: 24px;
            font-weight: bold;
            color: var(--text-light);
            background: linear-gradient(45deg, #d4af37, #f7ef8a, #d4af37);
            background-size: 200% 200%;
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            animation: gradientShift 3s ease infinite;
        }

        @keyframes gradientShift {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        .nav-menu {
            display: flex;
            list-style: none;
        }

        .nav-item {
            margin-left: 30px;
        }

        .nav-link {
            color: var(--text-light);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }

        .nav-link:hover {
            color: var(--accent-color);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: -5px;
            left: 0;
            background-color: var(--accent-color);
            transition: var(--transition);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .phone-number {
            color: var(--accent-color);
            font-weight: bold;
            font-size: 18px;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 24px;
            cursor: pointer;
        }

        /* 底部样式 */
        footer {
            background-color: var(--primary-color);
            color: var(--text-light);
            padding: 50px 0 20px;
        }

        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
        }

        .footer-section {
            flex: 1;
            min-width: 250px;
            margin-bottom: 30px;
            padding: 0 15px;
        }

        .footer-section h3 {
            font-size: 20px;
            margin-bottom: 20px;
            color: var(--accent-color);
            position: relative;
            padding-bottom: 10px;
        }

        .footer-section h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 50px;
            height: 2px;
            background-color: var(--accent-color);
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: var(--text-light);
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }

        .contact-info {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }

        .contact-info i {
            margin-right: 10px;
            color: var(--accent-color);
        }

        .qrcode {
            width: 120px;
            height: 120px;
            background-color: var(--light-color);
            border-radius: 5px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 10px;
        }

        .qrcode span {
            color: var(--dark-color);
            font-size: 12px;
            text-align: center;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 30px;
        }

        /* 友情链接区域 */
        .friend-links {
            background-color: rgba(255, 255, 255, 0.05);
            padding: 20px 0;
            margin-top: 30px;
        }

        .friend-links-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
        }

        .friend-links a {
            color: var(--text-light);
            text-decoration: none;
            transition: var(--transition);
            padding: 5px 10px;
            border-radius: 3px;
        }

        .friend-links a:hover {
            color: var(--accent-color);
            background-color: rgba(255, 255, 255, 0.1);
        }