:root {
            --primary-color: #f0b90b;
            --secondary-color: #1e2026;
            --accent-color: #474d57;
            --text-color: #eaecef;
            --light-bg: #2b2f36;
            --border-radius: 8px;
            --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s ease;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: var(--secondary-color);
            color: var(--text-color);
            line-height: 1.6;
            padding-bottom: 80px; /* 为底部固定广告条留出空间 */
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* 导航栏样式 */
        header {
            background-color: rgba(30, 32, 38, 0.95);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 12px 0;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
        }
        
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo img {
            height: 35px;
            width: auto;
        }
        
        .logo h1 {
            margin-left: 10px;
            font-size: 1.5rem;
            color: var(--primary-color);
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 20px;
        }
        
        .nav-links a {
            color: var(--text-color);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            font-size: 0.95rem;
        }
        
        .nav-links a:hover {
            color: var(--primary-color);
        }
        
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
        }
        
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: var(--text-color);
            margin: 2px 0;
            transition: var(--transition);
            border-radius: 3px;
        }
        
        /* 主内容区样式 */
        .hero {
            padding: 60px 0;
            text-align: center;
            background: linear-gradient(to bottom, var(--secondary-color), var(--light-bg));
        }
        
        .hero h2 {
            font-size: 2.2rem;
            margin-bottom: 15px;
            color: var(--primary-color);
        }
        
        .hero p {
            font-size: 1.1rem;
            max-width: 800px;
            margin: 0 auto 25px;
            color: var(--text-color);
        }
        
        /* 内容区块通用样式 */
        .section {
            padding: 50px 0;
            border-bottom: 1px solid var(--accent-color);
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 35px;
            color: var(--primary-color);
            font-size: 1.8rem;
        }
        
        /* 币安介绍样式 */
        .binance-intro {
            background-color: var(--light-bg);
        }
        
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }
        
        .timeline::after {
            content: '';
            position: absolute;
            width: 6px;
            background-color: var(--primary-color);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -3px;
            border-radius: 10px;
        }
        
        .timeline-item {
            padding: 10px 40px;
            position: relative;
            width: 50%;
            background-color: inherit;
        }
        
        .timeline-item::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            background-color: var(--primary-color);
            border: 4px solid var(--secondary-color);
            top: 15px;
            border-radius: 50%;
            z-index: 1;
        }
        
        .left {
            left: 0;
            text-align: right;
        }
        
        .left::after {
            right: -13px;
        }
        
        .right {
            left: 50%;
        }
        
        .right::after {
            left: -13px;
        }
        
        .timeline-content {
            padding: 20px;
            background-color: var(--secondary-color);
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        
        .timeline-content h3 {
            color: var(--primary-color);
            margin-bottom: 10px;
            font-size: 1.2rem;
        }
        
        /* APP截图展示区样式 */
        .screenshots-section {
            background-color: var(--light-bg);
            padding: 60px 0;
        }
        
        .screenshot-container {
            position: relative;
            max-width: 1000px;
            margin: 0 auto;
        }
        
        .screenshot-slider {
            display: flex;
            overflow-x: auto;
            scroll-snap-type: x mandatory;
            scroll-behavior: smooth;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            margin-bottom: 20px;
            padding: 20px 0;
        }
        
        .screenshot-slider::-webkit-scrollbar {
            display: none;
        }
        
        .screenshot-item {
            flex: 0 0 auto;
            width: 280px;
            margin: 0 15px;
            scroll-snap-align: start;
            position: relative;
            transition: var(--transition);
        }
        
        .screenshot-item:hover {
            transform: translateY(-10px);
        }
        
        .screenshot-frame {
            background: #000;
            border-radius: 20px;
            padding: 10px;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
            position: relative;
        }
        
        .screenshot-image {
            width: 100%;
            height: auto;
            border-radius: 12px;
            display: block;
        }
        
        .screenshot-caption {
            text-align: center;
            margin-top: 15px;
            font-weight: 500;
            color: var(--primary-color);
        }
        
        .screenshot-nav {
            display: flex;
            justify-content: center;
            margin-top: 30px;
        }
        
        .screenshot-dot {
            width: 12px;
            height: 12px;
            background: var(--accent-color);
            border-radius: 50%;
            margin: 0 5px;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .screenshot-dot.active {
            background: var(--primary-color);
            transform: scale(1.2);
        }
        
        /* 应用介绍样式 */
        .app-features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            margin-top: 35px;
        }
        
        .feature-card {
            background: var(--light-bg);
            border-radius: var(--border-radius);
            padding: 20px;
            box-shadow: var(--box-shadow);
            transition: transform 0.3s;
        }
        
        .feature-card:hover {
            transform: translateY(-5px);
        }
        
        .feature-card h3 {
            color: var(--primary-color);
            margin-bottom: 12px;
            font-size: 1.2rem;
        }
        
        .feature-icon {
            width: 70px;
            height: 70px;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(240, 185, 11, 0.1);
            border-radius: 50%;
            transition: var(--transition);
        }
        
        .feature-card:hover .feature-icon {
            background: rgba(240, 185, 11, 0.2);
            transform: scale(1.1);
        }
        
        .feature-icon svg {
            width: 40px;
            height: 40px;
        }
        
        /* 下载区域样式 */
        .download-options {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }
        
        .download-card {
            background: var(--light-bg);
            border-radius: var(--border-radius);
            padding: 25px;
            text-align: center;
            box-shadow: var(--box-shadow);
        }
        
        .download-card h3 {
            margin-bottom: 15px;
            color: var(--primary-color);
            font-size: 1.2rem;
        }
        
        .download-btn {
            display: inline-block;
            background-color: var(--primary-color);
            color: var(--secondary-color);
            padding: 10px 20px;
            border-radius: var(--border-radius);
            text-decoration: none;
            font-weight: bold;
            margin: 8px 5px;
            transition: var(--transition);
            border: 2px solid var(--primary-color);
            font-size: 0.95rem;
        }
        
        .download-btn:hover {
            background-color: transparent;
            color: var(--primary-color);
        }
        
        /* 版本历史样式 */
        .version-history {
            overflow-x: auto;
            margin: 0 -15px;
            padding: 0 15px;
        }
        
        .version-table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 20px;
            min-width: 600px;
        }
        
        .version-table th, .version-table td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid var(--accent-color);
        }
        
        .version-table th {
            background-color: var(--primary-color);
            color: var(--secondary-color);
        }
        
        .version-table tr:hover {
            background-color: rgba(240, 185, 11, 0.1);
        }
        
        /* 常见问题样式 */
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-item {
            margin-bottom: 15px;
            border: 1px solid var(--accent-color);
            border-radius: var(--border-radius);
            overflow: hidden;
        }
        
        .faq-question {
            padding: 15px 20px;
            background-color: var(--light-bg);
            cursor: pointer;
            font-weight: bold;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1rem;
        }
        
        .faq-answer {
            padding: 15px 20px;
            background-color: var(--secondary-color);
            display: none;
        }
        
        .faq-active .faq-answer {
            display: block;
        }
        
        /* 行业动态样式 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
        }
        
        .news-card {
            background: var(--light-bg);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
        }
        
        .news-content {
            padding: 20px;
        }
        
        .news-card h3 {
            color: var(--primary-color);
            margin-bottom: 10px;
            font-size: 1.2rem;
        }
        
        .news-date {
            color: var(--primary-color);
            font-size: 0.85rem;
            margin-bottom: 10px;
            display: block;
        }
        
        /* 底部广告样式 */
        .footer-ad {
            background: linear-gradient(to right, var(--primary-color), #f8d44c);
            color: var(--secondary-color);
            padding: 25px 0;
            text-align: center;
            margin-top: 40px;
        }
        
        .footer-ad h2 {
            margin-bottom: 15px;
            font-size: 1.5rem;
        }
        
        .ad-button {
            display: inline-block;
            background-color: var(--secondary-color);
            color: var(--primary-color);
            padding: 10px 25px;
            border-radius: var(--border-radius);
            text-decoration: none;
            font-weight: bold;
            margin-top: 15px;
            transition: var(--transition);
        }
        
        .ad-button:hover {
            background-color: #000;
            transform: scale(1.05);
        }
        
        /* 页脚样式 */
        footer {
            background-color: var(--secondary-color);
            padding: 30px 0;
            text-align: center;
        }
        
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            list-style: none;
            margin-bottom: 15px;
        }
        
        .footer-links li {
            margin: 0 10px;
            padding: 5px 0;
        }
        
        .footer-links a {
            color: var(--text-color);
            text-decoration: none;
            font-size: 0.9rem;
        }
        
        .footer-links a:hover {
            color: var(--primary-color);
        }
        
        .copyright {
            margin-top: 15px;
            color: var(--accent-color);
            font-size: 0.85rem;
        }
        
        /* 吸底浮动广告条样式 */
        .floating-ad {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background-color: var(--secondary-color);
            padding: 12px 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: 0 -2px 15px rgba(0, 0, 0, 0.3);
            z-index: 1000;
            border-top: 2px solid var(--primary-color);
        }
        
        .ad-logo {
            display: flex;
            align-items: center;
        }
        
        .ad-logo img {
            height: 25px;
            margin-right: 10px;
        }
        
        .ad-logo span {
            font-weight: bold;
            color: var(--primary-color);
            font-size: 1rem;
        }
        
        .ad-features {
            display: flex;
            align-items: center;
        }
        
        .ad-features span {
            margin: 0 8px;
            color: var(--text-color);
            font-size: 0.85rem;
        }
        
        .ad-buttons {
            display: flex;
            gap: 10px;
        }
        
        .ad-register {
            background-color: var(--primary-color);
            color: var(--secondary-color);
            padding: 6px 15px;
            border-radius: var(--border-radius);
            text-decoration: none;
            font-weight: bold;
            transition: var(--transition);

            font-size: 0.9rem;
            white-space: nowrap;
        }
        
        .ad-register:hover {
            background-color: #e0a800;
        }
        
        .ad-download {
            background-color: transparent;
            color: var(--primary-color);
            padding: 6px 15px;
            border-radius: var(--border-radius);
            text-decoration: none;
            font-weight: bold;
            border: 2px solid var(--primary-color);
            transition: var(--transition);
            font-size: 0.9rem;
            white-space: nowrap;
        }
        
        .ad-download:hover {
            background-color: var(--primary-color);
            color: var(--secondary-color);
        }
        
        /* 响应式设计 - 平板 */
        @media (max-width: 1024px) {
            .hero h2 {
                font-size: 2rem;
            }
            
            .section-title {
                font-size: 1.7rem;
            }
            
            .ad-features span:nth-child(2),
            .ad-features span:nth-child(4) {
                display: none;
            }
            
            .ad-features span {
                margin: 0 5px;
            }
        }
        
        /* 响应式设计 - 移动设备 */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: var(--secondary-color);
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            }
            
            .nav-links.active {
                display: flex;
            }
            
            .nav-links li {
                margin: 10px 0;
            }
            
            .hamburger {
                display: flex;
            }
            
            .hamburger.active span:nth-child(1) {
                transform: rotate(45deg) translate(5px, 5px);
            }
            
            .hamburger.active span:nth-child(2) {
                opacity: 0;
            }
            
            .hamburger.active span:nth-child(3) {
                transform: rotate(-45deg) translate(7px, -6px);
            }
            
            .hero {
                padding: 40px 0;
            }
            
            .hero h2 {
                font-size: 1.8rem;
            }
            
            .hero p {
                font-size: 1rem;
            }
            
            .section {
                padding: 40px 0;
            }
            
            .section-title {
                font-size: 1.6rem;
                margin-bottom: 25px;
            }
            
            .screenshot-item {
                width: 220px;
                margin: 0 10px;
            }
            
            .timeline::after {
                left: 31px;
            }
            
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            
            .timeline-item::after {
                left: 20px;
            }
            
            .left, .right {
                left: 0;
                text-align: left;
            }
            
            .app-features, .download-options, .news-grid {
                grid-template-columns: 1fr;
            }
            
            .feature-card, .download-card, .news-card {
                padding: 15px;
            }
            
            .feature-icon {
                width: 60px;
                height: 60px;
            }
            
            .feature-icon svg {
                width: 35px;
                height: 35px;
            }
            
            /* 吸底广告条响应式 */
            .floating-ad {
                flex-wrap: wrap;
                justify-content: center;
                padding: 10px;
            }
            
            .ad-logo {
                margin-bottom: 8px;
                width: 100%;
                justify-content: center;
            }
            
            .ad-features {
                margin-bottom: 8px;
                width: 100%;
                justify-content: center;
                flex-wrap: wrap;
            }
            
            .ad-features span {
                margin: 3px 5px;
            }
            
            .ad-buttons {
                width: 100%;
                justify-content: center;
            }
            
            .footer-ad h2 {
                font-size: 1.3rem;
            }
            
            .footer-links {
                flex-direction: column;
            }
            
            .footer-links li {
                margin: 5px 0;
            }
        }
        
        /* 响应式设计 - 小屏移动设备 */
        @media (max-width: 480px) {
            .logo h1 {
                font-size: 1.3rem;
            }
            
            .hero h2 {
                font-size: 1.6rem;
            }
            
            .download-btn {
                display: block;
                margin: 10px auto;
                width: 80%;
            }
            
            .screenshot-item {
                width: 200px;
            }
            
            .ad-features span {
                font-size: 0.8rem;
            }
            
            .ad-register, .ad-download {
                padding: 6px 12px;
                font-size: 0.85rem;
            }
            
            .version-table {
                font-size: 0.85rem;
            }
            
            .version-table th, .version-table td {
                padding: 8px 10px;
            }
        }