:root {
            --cz-primary: #F0B90B; /* Binance主黄色 */
            --cz-primary-dark: #C99A00; /* 深黄色 */
            --cz-primary-light: #F7D147; /* 浅黄色 */
            --cz-black: #1E1E1E; /* Binance黑色 */
            --cz-dark: #16181C; /* 深灰黑 */
            --cz-gray: #2B2D31; /* 灰色 */
            --cz-light-gray: #F6F7F9; /* 浅灰 */
            --cz-text: #1E1E1E; /* 主文本色 */
            --cz-text-light: #7E838C; /* 次要文本色 */
            --cz-white: #FFFFFF; /* 白色 */
            --cz-success: #03A66D; /* 成功绿色 */
            --cz-danger: #EA3323; /* 危险红色 */
        }
        
        /* 重置默认样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: var(--cz-text);
            background-color: var(--cz-light-gray);
            scroll-behavior: smooth;
        }
        
		nav ul li{
			list-style-type:none;
			float:left;
			margin-right:20px;
			font-size: 1.1rem;
		}
		
		nav ul li a {
            color: #fff;
            text-decoration: none;
            transition: color 0.2s;
            font-size: 1.1rem;
        }
        
        nav ul li a:hover {
            color: var(--cz-primary);
        }
		
        /* 通用容器 */
        .cz-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        
        /* 头部样式 */
        .cz-header {
            background: var(--cz-black);
            color: var(--cz-white);
            padding: 1rem 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: relative;
            z-index: 100;
        }
        
        .cz-header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .cz-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .cz-logo-icon {
            width: 40px;
            height: 40px;
            background: var(--cz-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--cz-black);
            font-size: 1.2rem;
        }
        
        .cz-logo-icon img{
            width: 100%;
            height: 100%;
        }
        
        .cz-logo-text {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: -0.5px;
        }
        
        /* 主要内容区域 */
        .cz-section {
            padding: 3rem 0;
        }
        
        .cz-section-title {
            text-align: center;
            font-size: 2.2rem;
            margin-bottom: 2.5rem;
            color: var(--cz-black);
            position: relative;
            font-weight: 700;
        }
        
        .cz-section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: var(--cz-primary);
            border-radius: 2px;
        }
        
        /* Binance介绍 */
        .cz-intro {
            background: var(--cz-white);
            border-radius: 16px;
            padding: 2.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        
        .cz-intro-content {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: center;
        }
        
		.cz-binance img {
			width:70%;
			height:100%;
		}
		
        .cz-intro-text {
            flex: 1;
            min-width: 300px;
        }
        
        .cz-intro-text h3 {
            font-size: 1.8rem;
            margin-bottom: 1.2rem;
            color: var(--cz-black);
            font-weight: 700;
        }
        
        .cz-intro-text p {
            margin-bottom: 1rem;
            color: var(--cz-text-light);
            font-size: 1.05rem;
        }
        
        .cz-intro-image {
            flex: 1;
            min-width: 280px;
            display: flex;
            justify-content: center;
        }
		
		.cz-intro-image img{
			width:50%;
			height:50%;
		}
        
        .cz-screenshot {
            width: 100%;
            max-width: 500px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            border: 1px solid #eee;
        }
        
        /* App介绍 */
        .cz-app-intro {
            background: var(--cz-white);
            border-radius: 16px;
            padding: 2.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        
        .cz-app-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }
        
        .cz-app-feature {
            background: var(--cz-light-gray);
            padding: 1.8rem;
            border-radius: 12px;
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
            border: 1px solid #f0f0f0;
        }
        
        .cz-app-feature:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        
        .cz-feature-icon {
            width: 70px;
            height: 70px;
            background: var(--cz-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: var(--cz-black);
            font-size: 1.8rem;
            font-weight: bold;
        }
        
        .cz-feature-title {
            font-size: 1.3rem;
            margin-bottom: 1rem;
            color: var(--cz-black);
            font-weight: 600;
        }
        
        /* 时间轴 */
        .cz-timeline {
            background: var(--cz-white);
            border-radius: 16px;
            padding: 2.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        
        .cz-timeline-container {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }
        
        .cz-timeline-container::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--cz-primary);
            left: 50%;
            margin-left: -2px;
        }
        
        .cz-timeline-item {
            position: relative;
            margin-bottom: 2.5rem;
            width: 50%;
        }
        
        .cz-timeline-item:nth-child(odd) {
            left: 0;
            padding-right: 40px;
            text-align: right;
        }
        
        .cz-timeline-item:nth-child(even) {
            left: 50%;
            padding-left: 40px;
        }
        
        .cz-timeline-content {
            background: var(--cz-light-gray);
            padding: 1.5rem;
            border-radius: 12px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
            border: 1px solid #f0f0f0;
        }
        
        .cz-timeline-year {
            font-weight: 700;
            color: var(--cz-primary);
            margin-bottom: 0.5rem;
            font-size: 1.2rem;
        }
        
        .cz-timeline-dot {
            position: absolute;
            width: 20px;
            height: 20px;
            background: var(--cz-primary);
            border: 4px solid var(--cz-white);
            border-radius: 50%;
            top: 20px;
            z-index: 1;
        }
        
        .cz-timeline-item:nth-child(odd) .cz-timeline-dot {
            right: -10px;
        }
        
        .cz-timeline-item:nth-child(even) .cz-timeline-dot {
            left: -10px;
        }
        
        /* 常见问答 */
        .cz-faq {
            background: var(--cz-white);
            border-radius: 16px;
            padding: 2.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        
        .cz-faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .cz-faq-item {
            margin-bottom: 1.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid #eee;
        }
        
        .cz-faq-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        
        .cz-faq-question {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--cz-black);
            font-size: 1.1rem;
            display: flex;
            justify-content: space-between;
            cursor: pointer;
            padding: 0.5rem 0;
        }
        
        .cz-faq-answer {
            color: var(--cz-text-light);
            padding-top: 0.5rem;
            line-height: 1.7;
        }
        
        /* 官方公告 */
        .cz-announcement {
            background: var(--cz-white);
            border-radius: 16px;
            padding: 2.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        
        .cz-announcement-list {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .cz-announcement-item {
            padding: 1rem 0;
            border-bottom: 1px solid #eee;
            display: flex;
        }
        
        .cz-announcement-item:last-child {
            border-bottom: none;
        }
        
        .cz-announcement-date {
            min-width: 100px;
            color: var(--cz-primary);
            font-weight: 600;
        }
        
        .cz-announcement-content {
            flex: 1;
        }
        
        .cz-announcement-title {
            font-weight: 600;
            margin-bottom: 0.3rem;
            color: var(--cz-black);
        }
        
        .cz-announcement-title a:hover {
            color: var(--cz-primary);
        }
        
        .cz-announcement-title a {
            color: var(--cz-black);
            text-decoration: none;
            transition: color 0.2s;
            font-weight: 600;
            margin-bottom: 0.3rem;
        }
        
        /* 下载区域 */
        .cz-download {
            background: linear-gradient(135deg, var(--cz-dark), var(--cz-black));
            border-radius: 16px;
            padding: 3rem 2rem;
            text-align: center;
            color: var(--cz-white);
            margin: 3rem 0;
        }
        
        .cz-download h2 {
            font-size: 2.2rem;
            margin-bottom: 2rem;
            font-weight: 700;
        }
        
        .cz-download-buttons {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
        
        .cz-download-btn {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 15px 30px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: transform 0.2s, box-shadow 0.2s;
            color: var(--cz-white);
            min-width: 180px;
            justify-content: center;
        }
        
        .cz-download-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.3);
        }
        
        .cz-apple-btn {
            background: #000000;
        }
        
        .cz-android-btn {
            background: #34A853;
        }
        
        .cz-desktop-btn {
            background: #4285F4;
        }
        
        /* 历史版本 */
        .cz-versions {
            background: var(--cz-white);
            border-radius: 16px;
            padding: 2.5rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        
        .cz-versions-table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 1.5rem;
            font-size: 0.95rem;
        }
        
        .cz-versions-table th,
        .cz-versions-table td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid #eee;
        }
        
        .cz-versions-table th {
            background: var(--cz-light-gray);
            font-weight: 600;
            color: var(--cz-black);
        }
        
        .cz-version-link {
            color: var(--cz-primary);
            text-decoration: none;
            font-weight: 600;
        }
        
        .cz-version-link:hover {
            text-decoration: underline;
        }
        
        /* 页脚 */
        .cz-footer {
            background: var(--cz-black);
            color: #aaa;
            padding: 3rem 0 2rem;
        }
        
        .cz-footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        
        .cz-footer-column h3 {
            color: var(--cz-white);
            margin-bottom: 1.2rem;
            font-size: 1.3rem;
            font-weight: 600;
        }
        
        .cz-footer-links {
            list-style: none;
        }
        
        .cz-footer-links li {
            margin-bottom: 0.8rem;
        }
        
        .cz-footer-links a {
            color: #aaa;
            text-decoration: none;
            transition: color 0.2s;
            font-size: 0.95rem;
        }
        
        .cz-footer-links a:hover {
            color: var(--cz-primary);
        }
        
        .cz-copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #333;
            color: #777;
            font-size: 0.9rem;
            line-height: 1.7;
        }
        
        /* 底部悬浮导航 */
        .cz-floating-nav {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--cz-white);
            box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
            padding: 1rem 0;
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            z-index: 1000;
        }
        
        .cz-floating-btn {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 5px;
            text-decoration: none;
            color: var(--cz-text);
            font-size: 0.9rem;
            padding: 0.5rem;
            border-radius: 8px;
            transition: all 0.2s;
        }
        
        .cz-floating-btn:hover {
            background: var(--cz-light-gray);
            color: var(--cz-black);
        }
        
        .cz-floating-icon {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--cz-primary);
            border-radius: 50%;
            color: var(--cz-black);
            font-weight: bold;
        }
        
        /* 扁平化图标样式 */
        .cz-icon {
            display: inline-block;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            fill: none;
            stroke: currentColor;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .cz-header-container {
                flex-direction: column;
                gap: 1rem;
            }
            
            .cz-intro-content {
                flex-direction: column;
            }
            
            .cz-timeline-container::before {
                left: 30px;
            }
            
            .cz-timeline-item {
                width: 100%;
                padding-left: 70px !important;
                padding-right: 0 !important;
                text-align: left !important;
            }
            
            .cz-timeline-item:nth-child(odd),
            .cz-timeline-item:nth-child(even) {
                left: 0;
            }
            
            .cz-timeline-dot {
                left: 20px !important;
                right: auto !important;
            }
            
            .cz-download-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .cz-download-btn {
                width: 100%;
                max-width: 300px;
                justify-content: center;
            }
            
            .cz-section-title {
                font-size: 1.8rem;
            }
        }
        
        @media (max-width: 480px) {
            .cz-section {
                padding: 2rem 0;
            }
            
            .cz-section-title {
                font-size: 1.6rem;
            }
            
            .cz-floating-nav {
                gap: 0.8rem;
            }
            
            .cz-floating-btn span {
                display: none;
            }
            
            .cz-download h2 {
                font-size: 1.8rem;
            }
			.cz-binance img {
			width:100%;
			height:100%;
		}
        }