/* ===== 公共CSS部分 - 导航栏和底部 ===== */
        :root {
            --primary-color: #0a2a5e;
            --secondary-color: #d4af37;
            --accent-color: #1e3a8a;
            --light-color: #f8f9fa;
            --dark-color: #333;
            --gray-color: #6c757d;
            --transition: all 0.5s ease;
            --gradient-primary: linear-gradient(135deg, #0a2a5e 0%, #1e3a8a 100%);
            --gradient-secondary: linear-gradient(135deg, #d4af37 0%, #f4d03f 100%);
            --gradient-accent: linear-gradient(135deg, #1e3a8a 0%, #2d4fa5 100%);
            --shadow-light: 0 5px 15px rgba(0, 0, 0, 0.1);
            --shadow-medium: 0 10px 30px rgba(0, 0, 0, 0.15);
            --shadow-heavy: 0 15px 40px rgba(0, 0, 0, 0.2);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            background-color: #fff;
            color: var(--dark-color);
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        section {
            padding: 100px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 70px;
            position: relative;
        }
        
        .section-title h2 {
            font-size: 2.8rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            position: relative;
            display: inline-block;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
            height: 4px;
            background: var(--gradient-secondary);
            border-radius: 2px;
        }
        
        .section-title p {
            color: var(--gray-color);
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto;
        }
        
        /* 导航栏样式 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background-color: rgba(10, 42, 94, 0.95);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            transition: var(--transition);
        }
        
        header.scrolled {
            background-color: var(--primary-color);
            padding: 10px 0;
        }
        
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo i {
            font-size: 2rem;
            color: var(--secondary-color);
        }
        
        .logo h1 {
            color: white;
            font-size: 1.8rem;
            margin-left: 10px;
            font-weight: 700;
        }
        
        .logo span {
            color: var(--secondary-color);
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 30px;
        }
        
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        
        .nav-links a:hover {
            color: var(--secondary-color);
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--secondary-color);
            transition: var(--transition);
        }
        
        .nav-links a:hover::after {
            width: 100%;
        }
        
        .contact-phone {
            display: flex;
            align-items: center;
            color: white;
            font-weight: bold;
            font-size: 1.2rem;
            background: var(--gradient-secondary);
            padding: 10px 20px;
            border-radius: 30px;
            box-shadow: var(--shadow-light);
        }
        
        .contact-phone i {
            margin-right: 10px;
        }
        
        .mobile-menu {
            display: none;
            font-size: 1.5rem;
            color: white;
            cursor: pointer;
        }
        
        /* 底部样式 */
        footer {
            background: var(--gradient-primary);
            color: white;
            padding: 80px 0 20px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 50px;
            margin-bottom: 60px;
        }
        
        .footer-column h3 {
            font-size: 1.4rem;
            margin-bottom: 30px;
            position: relative;
            padding-bottom: 15px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--gradient-secondary);
            border-radius: 2px;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: var(--secondary-color);
            padding-left: 8px;
        }
        
        .contact-info {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
        }
        
        .contact-info i {
            margin-right: 15px;
            color: var(--secondary-color);
            font-size: 1.2rem;
        }
        
        .qrcode {
            text-align: center;
        }
        
        .qrcode img {
            max-width: 150px;
            margin-bottom: 15px;
            border-radius: 10px;
            box-shadow: var(--shadow-light);
        }
        
        .friend-links-section {
            text-align: center;
            margin-top: 40px;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .friend-links-section h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            color: var(--secondary-color);
        }
        
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
        }
        
        .friend-links a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
            padding: 8px 15px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 5px;
        }
        
        .friend-links a:hover {
            color: var(--secondary-color);
            border-color: var(--secondary-color);
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            color: #ccc;
            font-size: 0.9rem;
        }
        
        /* 公共按钮样式 */
        .btn {
            display: inline-block;
            padding: 15px 35px;
            background: var(--gradient-secondary);
            color: var(--primary-color);
            text-decoration: none;
            border-radius: 30px;
            font-weight: bold;
            transition: var(--transition);
            border: none;
            box-shadow: var(--shadow-medium);
            font-size: 1.1rem;
            position: relative;
            overflow: hidden;
        }
        
        .btn:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-heavy);
        }
        
        /* 脉冲动画特效 */
        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(212, 175, 55, 0.7);
            }
            70% {
                box-shadow: 0 0 0 15px rgba(212, 175, 55, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(212, 175, 55, 0);
            }
        }
        
        .btn-pulse {
            animation: pulse 2s infinite;
        }
        
        .btn-pulse:hover {
            animation: none;
        }
        
        /* 响应式设计 - 公共部分 */
        @media (max-width: 768px) {
            .navbar {
                padding: 15px 0;
            }
            
            .nav-links {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background-color: var(--primary-color);
                flex-direction: column;
                align-items: center;
                justify-content: flex-start;
                padding-top: 50px;
                transition: var(--transition);
            }
            
            .nav-links.active {
                left: 0;
            }
            
            .nav-links li {
                margin: 20px 0;
            }
            
            .mobile-menu {
                display: block;
            }
            
            .contact-phone {
                font-size: 1rem;
                padding: 8px 15px;
            }
            
            .friend-links {
                gap: 10px;
            }
            
            .friend-links a {
                padding: 6px 12px;
                font-size: 0.9rem;
            }
        }
        
        @media (max-width: 576px) {
            .friend-links {
                flex-direction: column;
                align-items: center;
            }
        }