:root {
            --primary: #3498db;
            --secondary: #2ecc71;
            --accent: #9b59b6;
            --light: #f8f9fa;
            --dark: #34495e;
            --text: #2c3e50;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Noto Sans SC', sans-serif;
            color: var(--text);
            line-height: 1.6;
            background: #fff;
            overflow-x: hidden;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 头部和导航 */
        header {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo h1 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-left: 10px;
        }
        
        .logo-img {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            font-size: 1.2rem;
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav li {
            margin-left: 25px;
        }
        
        nav a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            padding: 5px 0;
        }
        
        nav a:hover {
            color: var(--primary);
        }
        
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
        }
        
        nav a:hover::after {
            width: 100%;
        }
        
        .mobile-menu-btn {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }

		     /* 底部 */
        footer {
            background: var(--dark);
            color: white;
            padding: 60px 0 30px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-column h3 {
            font-size: 1.4rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--primary);
        }
        
        .footer-column p, .footer-column a {
            color: #bbb;
            margin-bottom: 10px;
            display: block;
            transition: var(--transition);
            text-decoration: none;
        }
        
        .footer-column a:hover {
            color: var(--primary);
            padding-left: 5px;
        }
        
        .contact-info {
            list-style: none;
        }
        
        .contact-info li {
            margin-bottom: 15px;
            display: flex;
            align-items: center;
        }
        
        .contact-info i {
            margin-right: 10px;
            color: var(--primary);
            font-size: 1.2rem;
        }
        
        .qrcode {
            text-align: center;
        }
        
        .qrcode img {
            width: 150px;
            height: 150px;
            background: white;
            padding: 10px;
            border-radius: 10px;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #4a5568;
            color: #bbb;
            font-size: 0.9rem;
        }
        
        .footer-links a {
            color: #bbb !important;
            display: inline-block;
            margin: 0 10px;
            text-decoration: none;
        }
        
        .footer-links a:hover {
            color: var(--primary) !important;
        }