/* 全局样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
            line-height: 1.5;
            font-weight: 400;
            background-color: #ffffff;
            color: #333333;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 2rem 1rem;
            padding-bottom: 6rem; /* 为固定底部按钮留出空间 */
        }
        
         /* 头部区域 */
        .header-section {
            text-align: center;
            margin-bottom: 25px;
        }
        
        .logo {
            margin-bottom: 1.5rem;
            display: flex;
            justify-content: center;
        }
        
        /* 移除文本样式 */
        
        .header-section p {
            font-size: 1.1rem;
            color: #333333;
            margin-bottom: 0.75rem;
        }
        
        .highlight-text {
            font-size: 1.3rem;
            font-weight: bold;
            color: #ff6b35;
            margin: 1rem 0;
        }
        
         /* 会员套餐区域 */
        .membership-section {
            width: 100%;
            max-width: 1000px;
            margin-bottom: 5px;
        }
        
        .section-title {
            text-align: center;
            font-size: 1.5rem;
            font-weight: bold;
            color: #333333;
            margin-bottom: 1rem;
        }
        
         .membership-plans {
            display: flex;
            flex-wrap: nowrap;
            gap: 1.5rem;
            margin-bottom: 0.5rem;
            justify-content: center;
            overflow-x: hidden; /* 默认隐藏滚动，在响应式中启用 */
        }
        
        .plan-card {
            position: relative;
            padding: 1.5rem;
            border-radius: 0.5rem;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            width: 190px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            background-color: #ffffff; /* 默认背景色 */
        }
        
        .plan-card.selected {
            transform: scale(1.05);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
            background-color: #ffd966 !important; /* 选中时背景色为黄色 */
        }
        
        .plan-badge {
            position: absolute;
            top: 0;
            left: 0;
            background-color: #ff4d4f;
            color: white;
            padding: 0.25rem 1rem;
            border-bottom-right-radius: 0.5rem;
            font-size: 0.875rem;
            font-weight: 500;
        }
        
        .plan-duration {
            font-size: 1.5rem;
            font-weight: bold;
            margin: 1rem 0 0.5rem 0;
            color: #333333;
        }
        
        .plan-description {
            font-size: 0.875rem;
            color: #666666;
            margin-bottom: 0.75rem;
        }
        
        .plan-original-price {
            font-size: 0.875rem;
            color: #999999;
            text-decoration: line-through;
            margin-bottom: 0.25rem;
        }
        
        .plan-price {
            font-size: 1.75rem;
            font-weight: bold;
            color: #ff6b35;
            margin-bottom: 0.25rem;
        }
        
        .plan-monthly-price {
            font-size: 0.75rem;
            color: #666666;
        }
        
         /* 应用支持区域 */
        .supported-apps {
            text-align: center;
            margin-bottom: 25px;
            width: 100%;
            max-width: 800px;
        }
        
        .apps-title {
            font-size: 1.5rem;
            font-weight: bold;
            color: #333333;
            margin-bottom: 1.5rem;
        }
        
        .apps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
            gap: 1rem;
            margin-bottom: 1rem;
        }
        
        .app-card {
            padding: 1rem;
            border-radius: 0.5rem;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
            background-color: white;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .app-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        
        .app-icon {
            width: 48px;
            height: 48px;
            margin-bottom: 0.5rem;
            border-radius: 0.25rem;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        
        .app-icon img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }
        
        .app-name {
            font-size: 0.875rem;
            font-weight: 500;
            margin-bottom: 0.25rem;
            color: #333333;
        }
        
        .app-description {
            font-size: 0.75rem;
            color: #666666;
        }
        
        /* 底部按钮 */
        .button-container {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background-color: white;
            padding: 1rem;
            box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
            display: flex;
            justify-content: center;
            z-index: 1000;
        }
        
        .purchase-button {
            background-color: #ffd966;
            color: #333333;
            font-weight: bold;
            padding: 0.75rem 2rem;
            border: none;
            border-radius: 9999px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            width: 100%;
            max-width: 500px;
        }
        
        .purchase-button:hover {
            background-color: #ffc838;
        }
        
        /* 弹出层样式 */
        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(0, 0, 0, 0.5);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2000;
            visibility: hidden;
            opacity: 0;
            transition: visibility 0s, opacity 0.3s ease;
        }
        
        .modal-overlay.active {
            visibility: visible;
            opacity: 1;
        }
        
        .modal-container {
            background-color: white;
            border-radius: 0.75rem;
            width: 90%;
            max-width: 400px;
            padding: 2rem;
            position: relative;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
            transform: scale(0.9);
            transition: transform 0.3s ease;
        }
        
        .modal-overlay.active .modal-container {
            transform: scale(1);
        }
        
        .modal-close {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: none;
            border: none;
            font-size: 1.25rem;
            cursor: pointer;
            color: #666666;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: all 0.3s ease;
        }
        
        .modal-close:hover {
            background-color: #f5f5f5;
            color: #333333;
        }
        
        .modal-title {
            font-size: 1.5rem;
            font-weight: bold;
            text-align: center;
            color: #333333;
            margin-bottom: 1.5rem;
        }
        
        .plan-info {
            text-align: center;
            font-size: 1.1rem;
            color: #333333;
            margin-bottom: 2rem;
            padding: 1rem;
            background-color: #f8f9fa;
            border-radius: 0.5rem;
        }
        
        .email-input-container {
            margin-bottom: 1.5rem;
        }
        
        .email-input-label {
            display: block;
            font-size: 0.875rem;
            color: #333333;
            margin-bottom: 0.5rem;
        }
        
        .email-input {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid #d9d9d9;
            border-radius: 0.5rem;
            font-size: 1rem;
            transition: all 0.3s ease;
        }
        
        .email-input:focus {
            outline: none;
            border-color: #ffd966;
            box-shadow: 0 0 0 2px rgba(255, 217, 102, 0.2);
        }
        
        .password-hint {
            font-size: 0.75rem;
            color: #666666;
            margin-top: 0.5rem;
        }
        
        .register-button {
            width: 100%;
            background-color: #ffd966;
            color: #333333;
            font-weight: bold;
            padding: 0.75rem;
            border: none;
            border-radius: 0.5rem;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .register-button:hover {
            background-color: #ffc838;
        }
        
        .register-button:disabled {
            background-color: #d9d9d9;
            cursor: not-allowed;
        }
        
/* 响应式设计 */
         @media (max-width: 768px) {
            /* 会员套餐区域 - 手机端一行展示并可左右滑动 */
            .membership-plans {
                display: flex;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none; /* Firefox */
                padding-bottom: 1rem;
                justify-content: flex-start;
                width: 100%;
                gap: 0.75rem; /* 减小间距，确保能显示更多卡片 */
            }
            
            /* 隐藏滚动条但保留功能 */
            .membership-plans::-webkit-scrollbar {
                display: none;
            }
            
            /* 调整卡片宽度和间距，确保可以显示3-4个卡片 */
            .plan-card {
                flex-shrink: 0;
                width: 110px; /* 设置卡片宽度，不超过120px */
                padding: 1rem;
                min-width: 110px; /* 确保卡片不会被压缩 */
            }
            
            /* 调整卡片内部文字大小 */
            .plan-duration {
                font-size: 1.2rem;
            }
            
            .plan-price {
                font-size: 1.5rem;
            }
            
            /* 应用支持区域 - 保持2个应用一行 */
            .apps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            /* 调整字体大小 */
            .logo {
                font-size: 1.75rem;
            }
            
            .header-section p, .highlight-text {
                font-size: 1rem;
            }
            
            .section-title, .apps-title {
                font-size: 1.25rem;
            }
        }
        
        /* 确保在平板和桌面端的正常显示 */
        @media (min-width: 769px) {
            .membership-plans {
                justify-content: center;
            }
        }