* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Inter', sans-serif;
            background-color: #f8fafc;  /* 浅色背景 */
            color: #2c3e50;  /* 深灰色字体 */
            line-height: 1.5;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        /* 头部导航 */
        .header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #e2e8f0;
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 16px 0;
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            font-size: 24px;
            font-weight: 700;
            color: #1e293b;
        }
        .logo span {
            color: #0066cc;  /* Binance 品牌蓝 */
        }
        .nav-links {
            display: flex;
            gap: 32px;
            list-style: none;
        }
        .nav-links a {
            text-decoration: none;
            color: #475569;
            font-weight: 500;
            font-size: 15px;
            transition: color 0.2s;
        }
        .nav-links a:hover {
            color: #0066cc;
        }
        .header-buttons {
            display: flex;
            gap: 12px;
        }
        .btn-login {
            background: transparent;
            border: 1px solid #cbd5e1;
            color: #475569;
            padding: 8px 22px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: all 0.2s;
        }
        .btn-login:hover {
            border-color: #0066cc;
            color: #0066cc;
        }
        .btn-register {
            background: #0066cc;
            border: 1px solid #0066cc;
            color: white;
            padding: 8px 24px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .btn-register:hover {
            background: #0052a3;
        }
        .menu-toggle {
            display: none;
            background: transparent;
            border: none;
            color: #475569;
            font-size: 28px;
            cursor: pointer;
        }
        /* Hero 主视觉 */
        .hero {
            padding: 60px 0 80px;
            background: linear-gradient(165deg, #ffffff 0%, #f1f5f9 100%);
        }
        .hero .container {
            display: flex;
            align-items: center;
            gap: 40px;
        }
        .hero-content {
            flex: 1;
        }
        .hero-badge {
            color: #0066cc;
            font-size: 14px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }
        .hero-content h1 {
            font-size: 52px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 16px;
            color: #1e293b;
        }
        .hero-content h1 span {
            color: #0066cc;
        }
        .hero-subtitle {
            font-size: 18px;
            color: #64748b;
            margin-bottom: 32px;
        }
        .hero-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 40px;
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat .stat-value {
            font-size: 36px;
            font-weight: 700;
            color: #0066cc;
            line-height: 1.2;
        }
        .hero-stat .stat-label {
            font-size: 14px;
            color: #64748b;
        }
        .hero-cta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary {
            background: #0066cc;
            border: none;
            color: white;
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .btn-primary:hover {
            background: #0052a3;
        }
        .btn-secondary {
            background: transparent;
            border: 1px solid #cbd5e1;
            color: #475569;
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            transition: all 0.2s;
        }
        .btn-secondary:hover {
            border-color: #0066cc;
            color: #0066cc;
        }
        .hero-ticker {
            flex: 1;
            background: white;
            border-radius: 30px;
            padding: 25px;
            border: 1px solid #e2e8f0;
            box-shadow: 0 10px 25px -5px rgba(0,0,0,0.05);
        }
        .ticker-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .ticker-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px 0;
            border-bottom: 1px solid #e2e8f0;
        }
        .ticker-pair {
            font-weight: 600;
            color: #1e293b;
        }
        .ticker-spread {
            font-size: 12px;
            color: #64748b;
        }
        .ticker-bid {
            color: #10b981;
        }
        .ticker-ask {
            color: #ef4444;
        }
        /* 交易产品板块 */
        .products-section {
            padding: 70px 0;
            background: #ffffff;
        }
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-title h2 {
            font-size: 36px;
            font-weight: 700;
            color: #1e293b;
            margin-bottom: 16px;
        }
        .section-title p {
            font-size: 16px;
            color: #64748b;
            max-width: 700px;
            margin: 0 auto;
        }
        .products-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .product-card {
            background: #f8fafc;
            border-radius: 24px;
            padding: 30px 20px;
            text-align: center;
            border: 1px solid #e2e8f0;
            transition: all 0.3s;
        }
        .product-card:hover {
            border-color: #0066cc;
            transform: translateY(-5px);
            box-shadow: 0 10px 25px -5px rgba(0,102,204,0.1);
        }
        .product-icon {
            font-size: 40px;
            color: #0066cc;
            margin-bottom: 20px;
        }
        .product-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
            color: #1e293b;
        }
        .product-card p {
            color: #64748b;
            font-size: 14px;
        }
        /* 优势板块 */
        .advantages-section {
            padding: 70px 0;
            background: #f1f5f9;
        }
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
            align-items: center;
        }
        .advantage-text h3 {
            font-size: 28px;
            color: #1e293b;
            margin-bottom: 20px;
        }
        .advantage-text p {
            color: #475569;
            margin-bottom: 30px;
        }
        .advantage-list {
            list-style: none;
        }
        .advantage-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
            color: #334155;
        }
        .advantage-list li i {
            color: #0066cc;
            font-size: 18px;
        }
        .advantage-stats {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
        .stat-box {
            background: white;
            border-radius: 20px;
            padding: 25px;
            text-align: center;
            border: 1px solid #e2e8f0;
        }
        .stat-box .number {
            font-size: 36px;
            font-weight: 700;
            color: #0066cc;
        }
        .stat-box .label {
            color: #64748b;
            margin-top: 8px;
        }
        /* 平台技术板块 */
        .platform-section {
            padding: 70px 0;
            background: #ffffff;
        }
        .platform-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .platform-content h3 {
            font-size: 32px;
            color: #1e293b;
            margin-bottom: 20px;
        }
        .platform-content p {
            color: #475569;
            margin-bottom: 30px;
        }
        .platform-badges {
            display: flex;
            gap: 20px;
        }
        .badge {
            background: #f8fafc;
            border-radius: 16px;
            padding: 15px 25px;
            text-align: center;
            border: 1px solid #e2e8f0;
        }
        .badge i {
            font-size: 30px;
            color: #0066cc;
            margin-bottom: 8px;
        }
        .badge span {
            display: block;
            font-weight: 600;
            color: #1e293b;
        }
        /* 社区交易板块 */
        .community-section {
            padding: 70px 0;
            background: #f1f5f9;
        }
        .community-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .community-list {
            list-style: none;
        }
        .community-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
            font-size: 16px;
            color: #334155;
        }
        .community-list li i {
            color: #0066cc;
            font-size: 20px;
        }
        .community-content h3 {
            font-size: 28px;
            color: #1e293b;
            margin-bottom: 24px;
        }
        /* 信任徽章 */
        .trust-section {
            padding: 50px 0;
            background: #ffffff;
            border-top: 1px solid #e2e8f0;
            border-bottom: 1px solid #e2e8f0;
        }
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 30px;
            text-align: center;
        }
        .trust-item i {
            font-size: 32px;
            color: #0066cc;
            margin-bottom: 12px;
        }
        .trust-item p {
            font-weight: 600;
            color: #1e293b;
        }
        /* 经纪商介绍 */
        .about-section {
            padding: 70px 0;
            background: #ffffff;
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }
        .about-text h2 {
            font-size: 36px;
            color: #1e293b;
            margin-bottom: 24px;
        }
        .about-text p {
            color: #475569;
            margin-bottom: 20px;
        }
        .regulation-list {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 30px;
        }
        .regulation-item {
            background: #f1f5f9;
            border-radius: 30px;
            padding: 8px 20px;
            border: 1px solid #e2e8f0;
            color: #0066cc;
            font-weight: 500;
        }
        /* APP下载 */
        .app-section {
            padding: 60px 0;
            background: linear-gradient(135deg, #0066cc 0%, #004d99 100%);
        }
        .app-content {
            text-align: center;
            color: white;
        }
        .app-content h2 {
            font-size: 40px;
            margin-bottom: 16px;
        }
        .app-content p {
            font-size: 18px;
            margin-bottom: 30px;
            opacity: 0.9;
        }
        .app-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
        }
        .app-btn {
            background: rgba(255,255,255,0.15);
            border: 1px solid rgba(255,255,255,0.3);
            color: white;
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
        }
        .app-btn:hover {
            background: white;
            color: #0066cc;
        }
        /* CTA区块 */
        .cta-section {
            padding: 70px 0;
            background: #f1f5f9;
        }
        .cta-box {
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-box h2 {
            font-size: 38px;
            color: #1e293b;
            margin-bottom: 20px;
        }
        .cta-box p {
            color: #475569;
            margin-bottom: 30px;
        }
        .cta-steps {
            display: flex;
            justify-content: center;
            gap: 30px;
            margin: 40px 0;
        }
        .step {
            text-align: center;
        }
        .step .number {
            width: 40px;
            height: 40px;
            background: #0066cc;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            font-weight: 700;
            color: white;
        }
        .step p {
            color: #1e293b;
            font-weight: 500;
        }
        .telegram-link {
            color: #0066cc;
            text-decoration: none;
            font-weight: 600;
            margin-top: 20px;
            display: inline-block;
        }
        /* 页脚 */
        .footer {
            background: #ffffff;
            padding: 60px 0 30px;
            border-top: 1px solid #e2e8f0;
        }
        .footer-content {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 50px;
        }
        .footer-col .footer-logo {
            font-size: 24px;
            font-weight: 700;
            color: #1e293b;
            margin-bottom: 20px;
        }
        .footer-col .footer-logo span {
            color: #0066cc;
        }
        .footer-col p {
            color: #64748b;
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .footer-social {
            display: flex;
            gap: 20px;
        }
        .footer-social a {
            color: #94a3b8;
            font-size: 20px;
            transition: color 0.2s;
        }
        .footer-social a:hover {
            color: #0066cc;
        }
        .footer-col h4 {
            font-size: 18px;
            color: #1e293b;
            margin-bottom: 24px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 14px;
        }
        .footer-col ul li a {
            color: #64748b;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.2s;
        }
        .footer-col ul li a:hover {
            color: #0066cc;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #e2e8f0;
            color: #94a3b8;
            font-size: 13px;
        }
        /* 响应式 */
        @media (max-width: 1024px) {
            .hero .container {
                flex-direction: column;
            }
            .products-grid,
            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .advantages-grid,
            .platform-grid,
            .community-grid,
            .about-grid,
            .footer-content {
                grid-template-columns: 1fr;
            }
            .hero-stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .menu-toggle {
                display: block;
            }
            .hero-content h1 {
                font-size: 36px;
            }
            .cta-steps {
                flex-direction: column;
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
        /* 导航菜单 - 默认隐藏 */
        .nav-links {
            display: none;
            position: fixed;
            top: 70px; /* 与头部高度对齐 */
            left: 0;
            width: 100%;
            background: #ffffff;
            backdrop-filter: blur(10px);
            flex-direction: column;
            gap: 0;
            border-top: 1px solid #cbd5e1;
            border-bottom: 1px solid #cbd5e1;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
            z-index: 100;
            max-height: calc(100vh - 70px);
            overflow-y: auto;
        }

        /* 菜单激活时显示 */
        .nav-links.active {
            display: flex;
        }

        /* 菜单项样式 - 按照第二张截图优化 */
        .nav-links li {
            width: 100%;
            margin: 0;
            text-align: center;
            border-bottom: 1px solid #cbd5e1;
        }

        .nav-links li:last-child {
            border-bottom: none;
        }

        .nav-links li a {
            display: block;
            padding: 18px 20px;
            font-size: 18px;
            font-weight: 500;
            color: #475569;
            text-decoration: none;
            transition: all 0.2s;
            width: 100%;
            background: transparent;
        }

        .nav-links li a:hover {
            background: rgba(0, 167, 225, 0.1);
            color: #00a7e1;
        }

        /* 确保汉堡菜单按钮显示在正确位置 */
        .menu-toggle {
            display: block;
        }

        /* 调整头部布局，确保汉堡菜单在最右侧 */
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .header-buttons {
            display: flex;
            gap: 8px;
        }

        /* 登录按钮在移动端可适当调整 */
        .btn-login {
            padding: 6px 16px;
            font-size: 13px;
        }
        
        .btn-register {
            padding: 6px 18px;
            font-size: 13px;
        }
    }

    /* 更小屏幕下的微调 */
    @media (max-width: 480px) {
        .nav-links li a {
            padding: 16px 16px;
            font-size: 16px;
        }
    }