/* ===== 公共CSS样式 ===== */
        :root {
            --primary-color: #1a365d;
            --secondary-color: #c5a47e;
            --accent-color: #2d3748;
            --light-color: #f8f9fa;
            --dark-color: #212529;
            --transition: all 0.3s ease;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: var(--dark-color);
            overflow-x: hidden;
        }
        
        a {
            text-decoration: none;
            color: inherit;
        }
        
        ul {
            list-style: none;
        }
        
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
            position: relative;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
            position: relative;
            display: inline-block;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 3px;
            background: var(--secondary-color);
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
        }
        
        .btn {
            display: inline-block;
            padding: 12px 30px;
            background: var(--secondary-color);
            color: white;
            border: none;
            border-radius: 4px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .btn:hover {
            background: var(--primary-color);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        
        /* ===== 导航栏样式 ===== */
        header {
            background: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }
        
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo-text {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-color);
            background: linear-gradient(45deg, var(--primary-color), var(--secondary-color), #8b7355, var(--primary-color));
            background-size: 400% 400%;
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            animation: logoGradient 4s ease infinite;
        }
        
        @keyframes logoGradient {
            0% {
                background-position: 0% 50%;
            }
            50% {
                background-position: 100% 50%;
            }
            100% {
                background-position: 0% 50%;
            }
        }
        
        .nav-menu {
            display: flex;
            align-items: center;
        }
        
        .nav-item {
            margin-left: 1.5rem;
            position: relative;
        }
        
        .nav-link {
            font-weight: 500;
            padding: 0.5rem 0;
            transition: var(--transition);
        }
        
        .nav-link:hover {
            color: var(--secondary-color);
        }
        
        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            background: var(--secondary-color);
            left: 0;
            bottom: 0;
            transition: var(--transition);
        }
        
        .nav-link:hover::after {
            width: 100%;
        }
        
        .phone-number {
            display: flex;
            align-items: center;
            color: var(--secondary-color);
            font-weight: 600;
            font-size: 1.1rem;
            margin-left: 2rem; /* 增加间距 */
            padding-left: 2rem; /* 增加间距 */
            border-left: 1px solid #eee; /* 添加分隔线 */
        }
        
        .phone-number i {
            margin-right: 0.5rem;
        }
        
        .hamburger {
            display: none;
            cursor: pointer;
        }
        
        /* ===== 底部样式 ===== */
        footer {
            background: var(--primary-color);
            color: white;
            padding: 4rem 0 2rem;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
        }
        
        .footer-column h3 {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 0.5rem;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            width: 40px;
            height: 2px;
            background: var(--secondary-color);
            bottom: 0;
            left: 0;
        }
        
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        
        .footer-links a {
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        
        .contact-info li {
            margin-bottom: 1rem;
            display: flex;
            align-items: flex-start;
        }
        
        .contact-info i {
            margin-right: 10px;
            color: var(--secondary-color);
        }
        
        .qrcode {
            text-align: center;
        }
        
        .qrcode img {
            max-width: 150px;
            margin-bottom: 1rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 4px;
        }
        
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        /* ===== 响应式设计 ===== */
        @media (max-width: 992px) {
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
        }
        
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            
            .nav-menu {
                position: fixed;
                left: -100%;
                top: 70px;
                flex-direction: column;
                background-color: white;
                width: 100%;
                text-align: center;
                transition: 0.3s;
                box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
                padding: 2rem 0;
            }
            
            .nav-menu.active {
                left: 0;
            }
            
            .nav-item {
                margin: 1.5rem 0;
            }
            
            .phone-number {
                margin-top: 1rem;
                margin-left: 0;
                padding-left: 0;
                border-left: none;
            }
        }
        
        @media (max-width: 576px) {
            .footer-content {
                grid-template-columns: 1fr;
            }
            
            .section-title h2 {
                font-size: 1.8rem;
            }
        }