/* 公共CSS部分 - 导航与底部 */
        :root {
            --primary-color: #1a365d;
            --secondary-color: #d4af37;
            --accent-color: #2d3748;
            --light-color: #f7fafc;
            --dark-color: #2d3748;
            --text-color: #333;
            --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;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ed 100%);
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        ul {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            padding: 80px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 50px;
            position: relative;
        }

        .section-title h2 {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
            display: inline-block;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
        }

        .btn {
            display: inline-block;
            padding: 12px 30px;
            background: var(--secondary-color);
            color: var(--primary-color);
            border: none;
            border-radius: 4px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }

        .btn:hover {
            background: #b8941f;
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }

        /* 导航栏样式 */
        header {
            background: rgba(26, 54, 93, 0.95);
            position: fixed;
            width: 100%;
            z-index: 1000;
            box-shadow: var(--shadow);
            backdrop-filter: blur(10px);
        }

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

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

        .logo-text {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--secondary-color);
            position: relative;
            overflow: hidden;
            background: linear-gradient(90deg, #d4af37, #f7e98e, #d4af37);
            background-size: 200% 100%;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            animation: gradientShift 3s ease-in-out infinite;
        }

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

        .nav-menu {
            display: flex;
        }

        .nav-item {
            margin: 0 15px;
        }

        .nav-link {
            color: var(--light-color);
            font-weight: 500;
            padding: 5px 0;
            position: relative;
            transition: var(--transition);
        }

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

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

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

        .contact-phone {
            display: flex;
            align-items: center;
            color: var(--light-color);
            font-weight: 600;
        }

        .contact-phone i {
            margin-right: 8px;
            color: var(--secondary-color);
        }

        .hamburger {
            display: none;
            cursor: pointer;
        }

        .bar {
            display: block;
            width: 25px;
            height: 3px;
            margin: 5px auto;
            background: var(--light-color);
            transition: var(--transition);
        }

        /* 底部样式 */
        footer {
            background: var(--dark-color);
            color: var(--light-color);
            padding: 60px 0 20px;
            position: relative;
            overflow: hidden;
        }

        footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, var(--secondary-color), var(--primary-color), var(--secondary-color));
            background-size: 200% 100%;
            animation: gradientShift 3s ease-in-out infinite;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 40px;
        }

        .footer-column h3 {
            font-size: 1.2rem;
            margin-bottom: 20px;
            color: var(--secondary-color);
            position: relative;
            padding-bottom: 10px;
        }

        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--secondary-color);
        }

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

        .footer-links a {
            transition: var(--transition);
        }

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

        .contact-info {
            display: flex;
            flex-direction: column;
        }

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

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

        .qrcode {
            text-align: center;
        }

        .qrcode img {
            width: 120px;
            height: 120px;
            margin-bottom: 10px;
            border: 2px solid var(--secondary-color);
            padding: 5px;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 10px;
        }

        .friend-links a {
            background: rgba(255,255,255,0.1);
            padding: 5px 10px;
            border-radius: 4px;
            transition: var(--transition);
        }

        .friend-links a:hover {
            background: var(--secondary-color);
            color: var(--primary-color);
        }

        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
        }