* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
        }
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4efe9 100%);
            color: #333;
            line-height: 1.6;
            padding: 20px;
            min-height: 100vh;
        }
        .container {
            max-width: 900px;
            margin: 40px auto;
            background: #fff;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            overflow: hidden;
        }
        .header {
            background: linear-gradient(to right, #2c9c5f, #3ab777);
            color: white;
            padding: 30px 40px;
            text-align: center;
        }
        .page-title {
            font-size: 32px;
            margin-bottom: 10px;
            font-weight: 600;
        }
        .page-info {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 15px;
            font-size: 15px;
            opacity: 0.9;
        }
        .divider {
            height: 2px;
            background: linear-gradient(to right, transparent, #2c9c5f, transparent);
            margin: 25px 0;
        }
        .content-section {
            padding: 30px 40px;
        }
        .section-title {
            font-size: 22px;
            color: #2c9c5f;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #e0f0e9;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .section-title i {
            margin-right: 10px;
            font-size: 24px;
        }
        .download-info {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }
        .info-card {
            background: #f8fbf9;
            border-radius: 8px;
            padding: 20px;
            border-left: 4px solid #2c9c5f;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.03);
            text-align: center;
        }
        .info-card h3 {
            color: #2c9c5f;
            margin-bottom: 10px;
            font-size: 16px;
        }
        .info-card p {
            font-size: 18px;
            font-weight: 600;
            color: #2c3e50;
        }
        .download-btn-container {
            text-align: center;
            margin: 40px 0;
        }
        .download-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(to right, #2c9c5f, #3ab777);
            color: white;
            padding: 16px 40px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: bold;
            font-size: 18px;
            transition: all 0.3s;
            box-shadow: 0 5px 15px rgba(44, 156, 95, 0.3);
        }
        .download-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(44, 156, 95, 0.4);
        }
        .download-btn i {
            margin-right: 10px;
            font-size: 20px;
        }
        .content-text {
            line-height: 1.8;
            font-size: 16px;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }
        .content-text h2 {
            color: #2c9c5f;
            margin: 25px 0 15px;
            font-size: 20px;
        }
        .content-text p {
            margin-bottom: 15px;
            text-align: center;
        }
        .notice {
            background: #e8f5ee;
            border-radius: 8px;
            padding: 20px;
            margin: 30px auto 0;
            border-left: 4px solid #2c9c5f;
            max-width: 800px;
            text-align: center;
        }
        .notice h3 {
            color: #2c9c5f;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .notice h3 i {
            margin-right: 10px;
        }
        .footer {
            text-align: center;
            padding: 20px;
            background: #f8fbf9;
            color: #5a6d64;
            font-size: 14px;
        }
        @media (max-width: 768px) {
            .container {
                margin: 20px auto;
            }
            .header, .content-section {
                padding: 20px;
            }
            .page-title {
                font-size: 26px;
            }
            .download-info {
                grid-template-columns: 1fr;
            }
            .content-text, .notice {
                text-align: left;
            }
            .notice h3 {
                justify-content: flex-start;
            }
        }
         /* 动态添加的导航栏样式 */
        .top-navbar {
            background-color: #2c3e50;
            color: white;
            padding: 0;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 15px;
        }
        
        .nav-logo {
            font-size: 1.5rem;
            font-weight: bold;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
        }
        
        .nav-logo i {
            margin-right: 8px;
        }
        
        .nav-menu {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        
        .nav-item {
            position: relative;
        }
        
        .nav-link {
            color: white;
            text-decoration: none;
            padding: 15px 20px;
            display: block;
            transition: background-color 0.3s;
        }
        
        .nav-link:hover {
            background-color: #34495e;
        }
        
        .nav-link.active {
            background-color: #3498db;
        }
        
        .dropdown-menu {
            display: none;
            position: absolute;
            background-color: white;
            min-width: 200px;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            z-index: 1;
            border-radius: 4px;
            overflow: hidden;
        }
        
        .dropdown-menu a {
            color: #333;
            padding: 12px 16px;
            text-decoration: none;
            display: block;
            border-bottom: 1px solid #f1f1f1;
        }
        
        .dropdown-menu a:hover {
            background-color: #f8f9fa;
        }
        
        .nav-item:hover .dropdown-menu {
            display: block;
        }
        
        .hamburger {
            display: none;
            cursor: pointer;
            font-size: 1.5rem;
        }
        
        /* 响应式设计 */
        @media screen and (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: #2c3e50;
            }
            
            .nav-menu.active {
                display: flex;
            }
            
            .nav-item {
                width: 100%;
            }
            
            .dropdown-menu {
                position: static;
                width: 100%;
                display: none;
            }
            
            .nav-item:hover .dropdown-menu {
                display: block;
            }
            
            .hamburger {
                display: block;
            }
        }