* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        :root {
            --binance-yellow: #FCD535;
            --binance-dark: #1E2026;
            --binance-gray: #EAECEF;
            --binance-text: #EAECEF;
            --binance-green: #0ECB81;
            --binance-red: #F6465D;
            --binance-bg: #0B0E11;
        }
        
        body {
            background-color: var(--binance-bg);
            color: var(--binance-text);
            line-height: 1.6;
            overflow-x: hidden;
            padding-bottom: 80px; /* 为底部下载导航留出空间 */
        }
        
        a {
            text-decoration: none;
            color: var(--binance-yellow);
            transition: all 0.3s ease;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 头部导航 - 移动端优化 */
        header {
            background-color: var(--binance-dark);
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo-icon {
            color: var(--binance-yellow);
            font-size: 1.8rem;
            margin-right: 10px;
        }
        
        .logo-text {
            color: var(--binance-yellow);
            font-weight: bold;
            font-size: 1.4rem;
        }
        
        .nav-menu {
            display: flex;
            list-style: none;
        }
        
        .nav-menu li {
            margin-left: 25px;
        }
        
        .nav-menu a {
            color: var(--binance-text);
            font-weight: 500;
            padding: 5px 0;
            position: relative;
            display: flex;
            align-items: center;
        }
        
        .nav-menu a i {
            margin-right: 8px;
            font-size: 1.1rem;
        }
        
        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--binance-yellow);
            transition: width 0.3s;
        }
        
        .nav-menu a:hover::after {
            width: 100%;
        }
        
        .auth-buttons {
            display: flex;
            gap: 10px;
        }
        
        .btn {
            padding: 10px 20px;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            border: none;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .btn i {
            margin-right: 8px;
        }
        
        .btn-outline {
            border: 1px solid var(--binance-yellow);
            color: var(--binance-yellow);
            background: transparent;
        }
        
        .btn-outline:hover {
            background-color: rgba(252, 213, 53, 0.1);
        }
        
        .btn-primary {
            background-color: var(--binance-yellow);
            color: var(--binance-dark);
        }
        
        .btn-primary:hover {
            background-color: #e6c02f;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(252, 213, 53, 0.3);
        }
        
        .mobile-menu {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--binance-text);
        }
        
        /* 主横幅区域 - 移动端优化 */
        .hero {
            padding: 80px 0 60px;
            background: radial-gradient(circle at top right, #2D2F3A, #0B0E11);
            position: relative;
            overflow: hidden;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            background: var(--binance-yellow);
            border-radius: 50%;
            filter: blur(100px);
            opacity: 0.05;
            top: -200px;
            right: -100px;
        }
        
        .hero-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        
        .hero-content {
            flex: 1;
            max-width: 600px;
        }
        
        .hero-image {
            flex: 1;
            display: flex;
            justify-content: center;
            position: relative;
        }
        
        .app-mockup {
            width: 300px;
            height: 600px;
            background: linear-gradient(145deg, #1a1d23, #13161a);
            border-radius: 40px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
            position: relative;
            overflow: hidden;
            border: 10px solid #0a0c0f;
        }
        
        .app-screen {
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #1c1f26, #16191f);
            display: flex;
            flex-direction: column;
            padding: 20px;
        }
        
        .app-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
        }
        
        .app-logo {
            color: var(--binance-yellow);
            font-weight: bold;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
        }
        
        .app-logo i {
            margin-right: 8px;
            font-size: 1.3rem;
        }
        
        .app-time {
            font-size: 0.9rem;
            color: #b7bdc6;
        }
        
        .app-balance {
            background: linear-gradient(135deg, #2a2d35, #1e2128);
            border-radius: 15px;
            padding: 20px;
            margin-bottom: 20px;
        }
        
        .balance-label {
            font-size: 0.9rem;
            color: #b7bdc6;
            margin-bottom: 5px;
        }
        
        .balance-amount {
            font-size: 1.8rem;
            font-weight: bold;
        }
        
        .app-coins {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-top: 20px;
        }
        
        .coin-item {
            background: rgba(42, 45, 53, 0.7);
            border-radius: 10px;
            padding: 15px;
        }
        
        .coin-name {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
        }
        
        .coin-icon {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--binance-yellow);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--binance-dark);
            font-size: 0.8rem;
        }
        
        .coin-price {
            font-weight: bold;
            margin-bottom: 5px;
        }
        
        .coin-change {
            font-size: 0.8rem;
        }
        
        .change-up {
            color: var(--binance-green);
        }
        
        .change-down {
            color: var(--binance-red);
        }
        
        .hero h1 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .hero p {
            font-size: 1.1rem;
            margin-bottom: 30px;
            color: #B7BDC6;
        }
        
        .hero-buttons {
            display: flex;
            gap: 15px;
            margin-top: 30px;
        }
        
        .download-badges {
            display: flex;
            gap: 15px;
            margin-top: 20px;
        }
        
        .badge {
            width: 150px;
            height: auto;
        }
        
        /* 应用数据部分 - 移动端优化 */
        .app-data {
            padding: 40px 0;
            background-color: #161A1E;
        }
        
        .data-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 20px;
        }
        
        .data-card {
            text-align: center;
            padding: 25px 15px;
            background: linear-gradient(135deg, #1E2026, #1A1C22);
            border-radius: 12px;
            transition: transform 0.3s;
        }
        
        .data-card:hover {
            transform: translateY(-5px);
        }
        
        .data-icon {
            font-size: 2rem;
            margin-bottom: 15px;
            color: var(--binance-yellow);
            position: relative;
        }
        
        .data-icon::after {
            content: '';
            position: absolute;
            width: 40px;
            height: 40px;
            background: rgba(252, 213, 53, 0.1);
            border-radius: 50%;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: -1;
        }
        
        .data-number {
            font-size: 1.8rem;
            font-weight: bold;
            margin-bottom: 10px;
            color: var(--binance-yellow);
        }
        
        .data-label {
            font-size: 0.9rem;
            color: #B7BDC6;
        }
        
        /* 特性部分 - 移动端优化 */
        .features {
            padding: 60px 0;
            background-color: #161A1E;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 40px;
            font-size: 2rem;
        }
        
        .section-subtitle {
            text-align: center;
            margin-bottom: 15px;
            color: var(--binance-yellow);
            font-size: 1rem;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }
        
        .feature-card {
            background-color: #1E2026;
            border-radius: 12px;
            padding: 30px 20px;
            transition: transform 0.3s, box-shadow 0.3s;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .feature-card::before {
            content: '';
            position: absolute;
            width: 60px;
            height: 60px;
            background: rgba(252, 213, 53, 0.05);
            border-radius: 50%;
            top: -20px;
            right: -20px;
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
        }
        
        .feature-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: var(--binance-yellow);
            position: relative;
            display: inline-block;
        }
        
        .feature-icon::after {
            content: '';
            position: absolute;
            width: 60px;
            height: 60px;
            background: rgba(252, 213, 53, 0.1);
            border-radius: 50%;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: -1;
        }
        
        .feature-card h3 {
            margin-bottom: 15px;
            font-size: 1.3rem;
        }
        
        .feature-card p {
            color: #B7BDC6;
            font-size: 0.95rem;
        }
        
        /* 用户评价部分 - 移动端优化 */
        .testimonials {
            padding: 60px 0;
            background-color: var(--binance-bg);
        }
        
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }
        
        .testimonial-card {
            background-color: #1E2026;
            border-radius: 12px;
            padding: 25px;
            transition: transform 0.3s;
            position: relative;
        }
        
        .testimonial-card::before {
            content: '"';
            position: absolute;
            top: 15px;
            right: 20px;
            font-size: 4rem;
            color: rgba(252, 213, 53, 0.1);
            font-family: Georgia, serif;
            line-height: 1;
        }
        
        .testimonial-card:hover {
            transform: translateY(-5px);
        }
        
        .testimonial-header {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .testimonial-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background-color: var(--binance-yellow);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--binance-dark);
            margin-right: 15px;
            position: relative;
            overflow: hidden;
        }
        
        .testimonial-avatar::after {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.1);
            border-radius: 50%;
        }
        
        .testimonial-info h4 {
            margin-bottom: 5px;
            font-size: 1.1rem;
        }
        
        .testimonial-info p {
            color: #B7BDC6;
            font-size: 0.85rem;
        }
        
        .testimonial-rating {
            color: var(--binance-yellow);
            margin-bottom: 15px;
            display: flex;
            gap: 2px;
        }
        
        .testimonial-rating i {
            font-size: 0.9rem;
        }
        
        .testimonial-text {
            color: #B7BDC6;
            font-style: italic;
            font-size: 0.95rem;
            position: relative;
            z-index: 1;
        }
        
        /* 快讯板块 - 新增 */
        .news {
            padding: 60px 0;
            background-color: #161A1E;
        }
        
        .news-container {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .news-ticker {
            background: var(--binance-dark);
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            position: relative;
            overflow: hidden;
        }
        
        .news-header {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 1px solid #2A2D35;
        }
        
        .news-header i {
            color: var(--binance-yellow);
            font-size: 1.5rem;
            margin-right: 10px;
        }
        
        .news-header h3 {
            font-size: 1.3rem;
            color: var(--binance-yellow);
        }
        
        .news-list {
            max-height: 300px;
            overflow-y: auto;
            padding-right: 10px;
        }
        
        .news-list::-webkit-scrollbar {
            width: 6px;
        }
        
        .news-list::-webkit-scrollbar-track {
            background: #1E2026;
            border-radius: 10px;
        }
        
        .news-list::-webkit-scrollbar-thumb {
            background-color: var(--binance-yellow);
            border-radius: 10px;
        }
        
        .news-item {
            padding: 15px 0;
            border-bottom: 1px solid #2A2D35;
            transition: background-color 0.3s;
        }
        
        .news-item:last-child {
            border-bottom: none;
        }
        
        .news-item:hover {
            background-color: rgba(255, 255, 255, 0.03);
            border-radius: 8px;
            padding-left: 10px;
            padding-right: 10px;
        }
        
        .news-time {
            font-size: 0.8rem;
            color: var(--binance-yellow);
            margin-bottom: 5px;
            display: flex;
            align-items: center;
        }
        
        .news-time i {
            margin-right: 5px;
        }
        
        .news-content {
            font-size: 0.95rem;
            color: #B7BDC6;
        }
        
        .news-tag {
            display: inline-block;
            background: rgba(252, 213, 53, 0.1);
            color: var(--binance-yellow);
            padding: 3px 8px;
            border-radius: 4px;
            font-size: 0.75rem;
            margin-right: 8px;
        }
        
        /* 问答板块 - 新增 */
        .faq {
            padding: 60px 0;
            background-color: var(--binance-bg);
        }
        
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-item {
            background: var(--binance-dark);
            border-radius: 12px;
            margin-bottom: 15px;
            overflow: hidden;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
            transition: all 0.3s;
        }
        
        .faq-item:hover {
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        .faq-question {
            padding: 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #1E2026;
            transition: background-color 0.3s;
        }
        
        .faq-question:hover {
            background: #23252c;
        }
        
        .faq-question h3 {
            font-size: 1.1rem;
            color: var(--binance-text);
            display: flex;
            align-items: center;
        }
        
        .faq-question i {
            margin-right: 10px;
            color: var(--binance-yellow);
        }
        
        .faq-toggle {
            color: var(--binance-yellow);
            transition: transform 0.3s;
        }
        
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease;
            background: #1E2026;
        }
        
        .faq-answer p {
            padding-bottom: 20px;
            color: #B7BDC6;
            line-height: 1.6;
        }
        
        .faq-item.active .faq-answer {
            max-height: 500px;
        }
        
        .faq-item.active .faq-toggle {
            transform: rotate(180deg);
        }
        
        /* 应用截图部分 - 移动端优化 */
        .screenshots {
            padding: 60px 0;
            background-color: var(--binance-bg);
        }
        
        .screenshots-container {
            display: flex;
            overflow-x: auto;
            padding: 20px 10px;
            gap: 20px;
            scrollbar-width: thin;
            scrollbar-color: var(--binance-yellow) #1E2026;
        }
        
        .screenshots-container::-webkit-scrollbar {
            height: 6px;
        }
        
        .screenshots-container::-webkit-scrollbar-track {
            background: #1E2026;
            border-radius: 10px;
        }
        
        .screenshots-container::-webkit-scrollbar-thumb {
            background-color: var(--binance-yellow);
            border-radius: 10px;
        }
        
        .screenshot {
            min-width: 220px;
            height: 440px;
            background: linear-gradient(145deg, #1a1d23, #13161a);
            border-radius: 25px;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
            overflow: hidden;
            border: 6px solid #0a0c0f;
            position: relative;
        }
        
        .screenshot::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 30px;
            background: #0a0c0f;
            z-index: 1;
            border-radius: 25px 25px 0 0;
        }
        
        .screenshot-content {
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #1c1f26, #16191f);
            position: relative;
            z-index: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #b7bdc6;
            font-size: 0.9rem;
        }
		
		.screenshot-content img {
			width: 100%;
			height:100%;	
		}
        
        .screenshot-content::before {
            content: 'App Screenshot';
            opacity: 0.5;
        }
        
        /* 下载部分 - 移动端优化 */
        .download {
            padding: 60px 0;
            background: radial-gradient(circle at bottom left, #2D2F3A, #0B0E11);
            text-align: center;
        }
        
        .download h2 {
            font-size: 2rem;
            margin-bottom: 15px;
        }
        
        .download p {
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto 30px;
            color: #B7BDC6;
        }
        
        /* 吸底导航 - 新增 */
        .sticky-bottom-nav {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: var(--binance-dark);
            padding: 12px 0;
            box-shadow: 0 -2px 15px rgba(0, 0, 0, 0.5);
            z-index: 1000;
            transition: transform 0.3s ease;
        }
        
        .sticky-nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 15px;
        }
        
        .sticky-nav-text {
            flex: 1;
        }
        
        .sticky-nav-text h3 {
            font-size: 1rem;
            margin-bottom: 3px;
            display: flex;
            align-items: center;
        }
        
        .sticky-nav-text h3 i {
            margin-right: 8px;
            color: var(--binance-yellow);
        }
        
        .sticky-nav-text p {
            color: #B7BDC6;
            font-size: 0.8rem;
        }
        
        .sticky-nav-buttons {
            display: flex;
            gap: 10px;
        }
        
        .sticky-btn {
            padding: 10px 20px;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            border: none;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            justify-content: center;
            white-space: nowrap;
        }
        
        .sticky-btn i {
            margin-right: 6px;
        }
        
        .sticky-btn-download {
            background-color: var(--binance-yellow);
            color: var(--binance-dark);
        }
        
        .sticky-btn-download:hover {
            background-color: #e6c02f;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(252, 213, 53, 0.3);
        }
        
        .sticky-btn-register {
            border: 1px solid var(--binance-yellow);
            color: var(--binance-yellow);
            background: transparent;
        }
        
        .sticky-btn-register:hover {
            background-color: rgba(252, 213, 53, 0.1);
        }
        
        .close-sticky-nav {
            background: none;
            border: none;
            color: #B7BDC6;
            font-size: 1rem;
            cursor: pointer;
            transition: color 0.3s;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .close-sticky-nav:hover {
            color: var(--binance-yellow);
            background: rgba(255, 255, 255, 0.1);
        }
        
        /* 页脚 - 移动端优化 */
        footer {
            background-color: #161A1E;
            padding: 50px 0 20px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }
        
        .footer-column h4 {
            margin-bottom: 20px;
            color: var(--binance-text);
            font-size: 1.1rem;
            display: flex;
            align-items: center;
        }
        
        .footer-column h4 i {
            margin-right: 10px;
            color: var(--binance-yellow);
            font-size: 1.2rem;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a {
            color: #B7BDC6;
            transition: color 0.3s;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
        }
        
        .footer-links a i {
            margin-right: 8px;
            font-size: 0.8rem;
            width: 16px;
            text-align: center;
        }
        
        .footer-links a:hover {
            color: var(--binance-yellow);
        }
        
        .social-links {
            display: flex;
            gap: 12px;
            margin-top: 15px;
        }
        
        .social-link {
            width: 35px;
            height: 35px;
            border-radius: 50%;
            background-color: #2A2D35;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #B7BDC6;
            transition: all 0.3s;
            font-size: 0.9rem;
        }
        
        .social-link:hover {
            background-color: var(--binance-yellow);
            color: var(--binance-dark);
            transform: translateY(-3px);
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2A2D35;
            color: #B7BDC6;
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .copyright i {
            margin-right: 8px;
            color: var(--binance-yellow);
        }
        
        /* 响应式设计 - 移动端优先 */
        @media (max-width: 1024px) {
            .hero-container {
                flex-direction: column;
                text-align: center;
            }
            
            .hero-content {
                margin-bottom: 50px;
            }
            
            .hero h1 {
                font-size: 2.2rem;
            }
        }
        
        @media (max-width: 768px) {
            .nav-menu, .auth-buttons {
                display: none;
            }
            
            .mobile-menu {
                display: block;
            }
            
            .hero {
                padding: 60px 0 40px;
            }
            
            .hero h1 {
                font-size: 1.8rem;
            }
            
            .hero p {
                font-size: 1rem;
            }
            
            .hero-buttons {
                flex-direction: column;
                align-items: center;
                gap: 12px;
            }
            
            .btn {
                width: 100%;
                max-width: 280px;
                text-align: center;
                padding: 12px 20px;
            }
            
            .download-badges {
                justify-content: center;
                flex-wrap: wrap;
            }
            
            .badge {
                width: 130px;
            }
            
            .section-title {
                font-size: 1.7rem;
                margin-bottom: 30px;
            }
            
            .features {
                padding: 50px 0;
            }
            
            .features-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            
            .feature-card {
                padding: 25px 20px;
            }
            
            .feature-icon {
                font-size: 2.2rem;
            }
            
            .testimonials {
                padding: 50px 0;
            }
            
            .testimonials-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            
            .news, .faq {
                padding: 50px 0;
            }
            
            .screenshots {
                padding: 50px 0;
            }
            
            .screenshot {
                min-width: 200px;
                height: 400px;
            }
            
            .download {
                padding: 50px 0;
            }
            
            .download h2 {
                font-size: 1.7rem;
            }
            
            .download p {
                font-size: 1rem;
            }
            
            .app-mockup {
                width: 250px;
                height: 500px;
            }
            
            .app-screen {
                padding: 15px;
            }
            
            .app-balance {
                padding: 15px;
            }
            
            .balance-amount {
                font-size: 1.5rem;
            }
            
            .app-coins {
                gap: 10px;
            }
            
            .coin-item {
                padding: 12px;
            }
            
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 25px;
            }
            
            /* 吸底导航移动端适配 */
            .sticky-nav-container {
                flex-direction: column;
                gap: 10px;
                text-align: center;
            }
            
            .sticky-nav-text {
                margin-bottom: 5px;
            }
            
            .sticky-nav-buttons {
                width: 100%;
                justify-content: center;
            }
            
            .sticky-btn {
                flex: 1;
                max-width: 150px;
            }
        }
        
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            
            .hero h1 {
                font-size: 1.6rem;
            }
            
            .hero p {
                font-size: 0.95rem;
            }
            
            .section-title {
                font-size: 1.5rem;
            }
            
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 15px;
            }
            
            .data-card {
                padding: 20px 10px;
            }
            
            .data-number {
                font-size: 1.5rem;
            }
            
            .data-icon {
                font-size: 1.8rem;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            
            .app-mockup {
                width: 220px;
                height: 440px;
            }
            
            .screenshot {
                min-width: 180px;
                height: 360px;
            }
            
            /* 吸底导航小屏幕适配 */
            .sticky-nav-text h3 {
                font-size: 0.9rem;
            }
            
            .sticky-nav-text p {
                font-size: 0.75rem;
            }
            
            .sticky-btn {
                padding: 8px 12px;
                font-size: 0.85rem;
            }
        }
        
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .fade-in {
            animation: fadeInUp 0.8s ease forwards;
        }
        
        .delay-1 {
            animation-delay: 0.2s;
        }
        
        .delay-2 {
            animation-delay: 0.4s;
        }
        
        .delay-3 {
            animation-delay: 0.6s;
        }
        
        /* 图标动画 */
        @keyframes pulse {
            0% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.05);
            }
            100% {
                transform: scale(1);
            }
        }
        
        .pulse {
            animation: pulse 2s infinite;
        }
        
        .feature-icon, .data-icon {
            transition: transform 0.3s;
        }
        
        .feature-card:hover .feature-icon,
        .data-card:hover .data-icon {
            transform: scale(1.1);
        }