/* ====== 公共CSS部分 (导航与底部) ====== */
        :root {
            --primary: #0052FF;
            --primary-dark: #0041CC;
            --secondary: #00C6FF;
            --dark: #0A1A2F;
            --light: #F8FAFF;
            --gray: #6B7280;
            --gray-light: #F3F4F6;
            --white: #FFFFFF;
            --border: #E5E7EB;
            --shadow: 0 10px 25px rgba(0, 82, 255, 0.05);
            --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.08);
            --radius: 12px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            font-family: 'Inter', 'Noto Sans SC', sans-serif;
            line-height: 1.6;
            color: var(--dark);
            background-color: var(--white);
            overflow-x: hidden;
        }
        
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        /* 导航样式 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(229, 231, 235, 0.5);
            transition: var(--transition);
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
            text-decoration: none;
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--dark);
            font-family: 'Noto Sans SC', sans-serif;
        }
        
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            margin-right: 12px;
            color: var(--primary);
            font-size: 2.2rem;
            animation: spinGlobe 15s linear infinite;
            position: relative;
        }
        
        .logo-icon::before {
            content: '';
            position: absolute;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.1) 0%, rgba(0, 198, 255, 0.1) 100%);
            z-index: -1;
            animation: pulseGlobe 3s ease-in-out infinite;
        }
        
        .nav-menu {
            display: flex;
            list-style: none;
            gap: 40px;
        }
        
        .nav-link {
            text-decoration: none;
            color: var(--dark);
            font-weight: 500;
            font-size: 0.95rem;
            position: relative;
            padding: 8px 0;
            transition: var(--transition);
        }
        
        .nav-link:hover {
            color: var(--primary);
        }
        
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            border-radius: 2px;
        }
        
        .header-actions {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        
        .phone-link {
            display: flex;
            align-items: center;
            text-decoration: none;
            color: var(--dark);
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            padding: 10px 20px;
            border-radius: 50px;
            background-color: var(--gray-light);
        }
        
        .phone-link:hover {
            background-color: var(--primary);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }
        
        .phone-icon {
            margin-right: 8px;
            font-size: 0.9rem;
        }
        
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--dark);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
        }
        
        .mobile-menu-btn:hover {
            background-color: var(--gray-light);
        }
        
        /* 底部样式 */
        footer {
            background-color: var(--dark);
            color: var(--white);
            padding: 80px 0 40px;
        }
        
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 50px;
            margin-bottom: 60px;
        }
        
        .footer-logo {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }
        
        .footer-logo .logo {
            margin-bottom: 20px;
            color: var(--white);
        }
        
        .footer-logo p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            line-height: 1.7;
            max-width: 300px;
        }
        
        .footer-column h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--white);
            font-family: 'Noto Sans SC', sans-serif;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        
        .contact-info {
            list-style: none;
        }
        
        .contact-info li {
            margin-bottom: 20px;
            display: flex;
            align-items: flex-start;
        }
        
        .contact-icon {
            color: var(--secondary);
            margin-right: 12px;
            font-size: 1.1rem;
            margin-top: 2px;
        }
        
        .contact-details strong {
            display: block;
            margin-bottom: 4px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.9);
        }
        
        .contact-details span {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
        }
        
        .qr-section {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }
        
        .qr-code {
            width: 140px;
            height: 140px;
            background-color: var(--white);
            padding: 12px;
            border-radius: var(--radius);
            margin-bottom: 15px;
        }
        
        .qr-code img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .qr-text {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
        }
        
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .copyright {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
        }
        
        .footer-social {
            display: flex;
            gap: 20px;
        }
        
        .social-link {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        
        .social-link:hover {
            color: var(--secondary);
            transform: translateY(-3px);
        }
        
        /* 响应式导航 */
        @media screen and (max-width: 1024px) {
            .nav-menu {
                gap: 30px;
            }
        }
        
        @media screen and (max-width: 768px) {
            .nav-menu {
                position: fixed;
                top: 80px;
                left: -100%;
                flex-direction: column;
                background-color: var(--white);
                width: 100%;
                padding: 30px 24px;
                gap: 0;
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
                transition: var(--transition);
                z-index: 999;
            }
            
            .nav-menu.active {
                left: 0;
            }
            
            .nav-item {
                margin-bottom: 20px;
            }
            
            .nav-link {
                display: block;
                padding: 12px 0;
                border-bottom: 1px solid var(--border);
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .header-actions .phone-link {
                display: none;
            }
            
            .footer-container {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            
            .footer-bottom {
                flex-direction: column;
                gap: 20px;
                text-align: center;
            }
        }