:root {
            --primary: #1652f0;
            --primary-dark: #0a39ab;
            --accent: #00c4ff;
            --accent-light: #6fe7ff;
            --dark: #0f172a;
            --dark-light: #1e293b;
            --light: #f8fafc;
            --gray: #94a3b8;
            --success: #10b981;
            --warning: #f59e0b;
            --gradient: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: var(--light);
            font-family: 'Roboto', sans-serif;
            line-height: 1.6;
            overflow-x: hidden;
            background-attachment: fixed;
        }
        
        h1, h2, h3, h4, h5 {
            font-family: 'Montserrat', sans-serif;
            font-weight: 700;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        section {
            padding: 80px 0;
        }
        
        /* 头部样式 */
        header {
            padding: 20px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(148, 163, 184, 0.2);
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
        }
        
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.8rem;
            font-weight: 700;
            color: white;
            text-decoration: none;
        }
        
        .logo-icon {
            color: var(--accent);
            font-size: 2.2rem;
        }
        
        .logo-img {
            height: 48px;
            margin-right: 10px;
        }
        
        .nav-links {
            display: flex;
            gap: 30px;
        }
        
        .nav-links a {
            color: var(--light);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            position: relative;
            font-size: 1.05rem;
        }
        
        .nav-links a:hover {
            color: var(--accent);
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.3s ease;
        }
        
        .nav-links a:hover::after {
            width: 100%;
        }
        
        .cta-button {
            background: var(--gradient);
            color: white;
            border: none;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(22, 82, 240, 0.3);
            display: inline-block;
            text-decoration: none;
        }
        
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(22, 82, 240, 0.4);
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--accent) 100%);
        }
        
        /* 英雄区域 */
        .hero {
            padding: 100px 0 70px;
            display: flex;
            align-items: center;
            min-height: 100vh;
            position: relative;
            overflow: hidden;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(0, 196, 255, 0.05) 0%, transparent 70%);
            z-index: -1;
        }
        
        .hero-content {
            flex: 1;
            padding-right: 40px;
            z-index: 2;
            position: relative;
        }
        
        .hero-image {
            flex: 1;
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .hero h1 span {
            color: var(--accent);
            position: relative;
            display: inline-block;
        }
        
        .hero h1 span::after {
            content: '';
            position: absolute;
            bottom: 10px;
            left: 0;
            width: 100%;
            height: 10px;
            background: rgba(0, 196, 255, 0.2);
            z-index: -1;
        }
        
        .hero p {
            font-size: 1.2rem;
            color: var(--gray);
            margin-bottom: 30px;
            max-width: 600px;
        }
        
        .hero-buttons {
            display: flex;
            gap: 15px;
            margin-top: 30px;
            flex-wrap: wrap;
        }
        
        .secondary-button {
            background: transparent;
            color: var(--light);
            border: 2px solid var(--gray);
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .secondary-button:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(0, 196, 255, 0.05);
        }
        
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 50px;
            flex-wrap: wrap;
        }
        
        .stat-item {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .stat-icon {
            width: 50px;
            height: 50px;
            background: rgba(0, 196, 255, 0.1);
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .stat-icon i {
            font-size: 24px;
            color: var(--accent);
        }
        
        .stat-text h3 {
            font-size: 2.2rem;
            color: var(--accent);
            margin-bottom: 5px;
            line-height: 1;
        }
        
        .stat-text p {
            font-size: 1rem;
            color: var(--gray);
            margin: 0;
        }
        
        .hero-img {
            max-width: 100%;
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
            animation: float 6s ease-in-out infinite;
        }
        
        /* 功能区域 */
        .features {
            position: relative;
            overflow: hidden;
        }
        
        .features::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('../images/photo-1620336655052-b57986f5a26a.jpg') center/cover;
            opacity: 0.05;
            z-index: -1;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 70px;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--gradient);
            border-radius: 2px;
        }
        
        .section-title p {
            color: var(--gray);
            max-width: 600px;
            margin: 30px auto 0;
            font-size: 1.1rem;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .feature-card {
            background: rgba(30, 41, 59, 0.7);
            border-radius: 20px;
            padding: 40px 30px;
            transition: all 0.3s ease;
            border: 1px solid rgba(148, 163, 184, 0.1);
            text-align: center;
            backdrop-filter: blur(5px);
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            background: rgba(30, 41, 59, 0.9);
            border-color: rgba(0, 196, 255, 0.2);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
        }
        
        .feature-icon {
            width: 80px;
            height: 80px;
            background: rgba(0, 196, 255, 0.1);
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            transition: all 0.3s ease;
        }
        
        .feature-card:hover .feature-icon {
            transform: scale(1.1);
            background: rgba(0, 196, 255, 0.2);
        }
        
        .feature-icon i {
            font-size: 36px;
            color: var(--accent);
        }
        
        .feature-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
        }
        
        .feature-card p {
            color: var(--gray);
        }
        
        /* 交易对展示 */
        .trading-pairs {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.8) 0%, rgba(30, 41, 59, 0.8) 100%);
            position: relative;
            overflow: hidden;
        }
        
        .trading-pairs::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('../images/photo-1621761191319-c6fb62004040.avif') center/cover;
            opacity: 0.05;
            z-index: -1;
        }
        
        .coins-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            margin-top: 40px;
        }
        
        .coin-card {
            background: rgba(30, 41, 59, 0.7);
            border-radius: 15px;
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 15px;
            transition: all 0.3s ease;
            border: 1px solid rgba(148, 163, 184, 0.1);
            backdrop-filter: blur(5px);
        }
        
        .coin-card:hover {
            transform: translateY(-5px);
            background: rgba(30, 41, 59, 0.9);
            border-color: rgba(0, 196, 255, 0.2);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        }
        
        .coin-icon {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--dark-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        
        .coin-icon img {
            width: 70%;
            height: auto;
        }
        
        .coin-info h4 {
            font-size: 1.1rem;
            margin-bottom: 5px;
        }
        
        .coin-info p {
            color: var(--gray);
            font-size: 0.9rem;
        }
        
        .coin-change {
            margin-left: auto;
            font-weight: 500;
            font-size: 1.1rem;
        }
        
        .positive {
            color: var(--success);
        }
        
        .negative {
            color: #ef4444;
        }
        
        /* 应用下载 */
        .download {
            background: linear-gradient(135deg, rgba(22, 82, 240, 0.1) 0%, rgba(0, 196, 255, 0.1) 100%);
            position: relative;
            overflow: hidden;
        }
        
        .download::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(0, 196, 255, 0.05) 0%, transparent 70%);
            z-index: -1;
        }
        
        .download-content {
            display: flex;
            align-items: center;
            gap: 50px;
        }
        
        .download-text {
            flex: 1;
        }
        
        .download-text h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }
        
        .download-text p {
            color: var(--gray);
            margin-bottom: 30px;
            font-size: 1.1rem;
            max-width: 500px;
        }
        
        .app-badges {
            display: flex;
            gap: 15px;
            margin-top: 30px;
            flex-wrap: wrap;
        }
        
        .badge {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.1);
            padding: 15px 25px;
            border-radius: 15px;
            font-weight: 500;
            transition: all 0.3s ease;
            text-decoration: none;
            color: white;
        }
        
        .badge:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-5px);
        }
        
        .badge i {
            margin-right: 10px;
            font-size: 1.5rem;
        }
        
        .download-image {
            flex: 1;
            text-align: center;
            position: relative;
            display: flex;
            justify-content: center;
        }
        
        .phone-mockup {
            max-width: 280px;
            position: relative;
            display: inline-block;
        }
        
        .phone-mockup img {
            width: 100%;
            border-radius: 40px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        /* 安全部分 */
        .security {
            position: relative;
            overflow: hidden;
        }
        
        .security::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('../images/photo-1558346490-a72e53ae2d4f.jpg') center/cover;
            opacity: 0.05;
            z-index: -1;
        }
        
        .security-content {
            display: flex;
            align-items: center;
            gap: 50px;
        }
        
        .security-image {
            flex: 1;
            display: flex;
            justify-content: center;
        }
        
        .security-image img {
            max-width: 100%;
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }
        
        .security-text {
            flex: 1;
        }
        
        .security-text h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }
        
        .security-text p {
            color: var(--gray);
            margin-bottom: 30px;
            font-size: 1.1rem;
        }
        
        .security-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 30px;
        }
        
        .security-feature {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .security-icon {
            width: 50px;
            height: 50px;
            background: rgba(0, 196, 255, 0.1);
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        
        .security-icon i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        
        .security-feature h4 {
            font-size: 1.1rem;
            margin-bottom: 5px;
        }
        
        .security-feature p {
            color: var(--gray);
            margin: 0;
            font-size: 0.9rem;
        }
        
        /* 合作伙伴 */
        .partners {
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.8) 0%, rgba(30, 41, 59, 0.8) 100%);
            padding: 60px 0;
        }
        
        .partners-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 30px;
            align-items: center;
            justify-content: center;
            margin-top: 40px;
        }
        
        .partner-logo {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 10px;
            padding: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100px;
            transition: all 0.3s ease;
        }
        
        .partner-logo:hover {
            transform: translateY(-5px);
            background: rgba(255, 255, 255, 0.1);
        }
        
        .partner-logo img {
            max-width: 100%;
            max-height: 50px;
            filter: grayscale(100%) brightness(150%);
            transition: filter 0.3s ease;
        }
        
        .partner-logo:hover img {
            filter: grayscale(0) brightness(100%);
        }
        
        /* 底部样式 */
        footer {
            padding: 70px 0 30px;
            border-top: 1px solid rgba(148, 163, 184, 0.1);
            background: rgba(15, 23, 42, 0.9);
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 50px;
        }
        
        .footer-about {
            padding-right: 20px;
        }
        
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        
        .footer-logo i {
            color: var(--accent);
        }
        
        .footer-about p {
            color: var(--gray);
            margin-bottom: 20px;
        }
        
        .social-icons {
            display: flex;
            gap: 15px;
        }
        
        .social-icons a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            color: var(--light);
            transition: all 0.3s ease;
            text-decoration: none;
        }
        
        .social-icons a:hover {
            background: var(--primary);
            transform: translateY(-3px);
        }
        
        .footer-links h3 {
            font-size: 1.2rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-links h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--accent);
        }
        
        .footer-links ul {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: var(--gray);
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-block;
        }
        
        .footer-links a:hover {
            color: var(--accent);
            transform: translateX(5px);
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(148, 163, 184, 0.1);
            color: var(--gray);
            font-size: 0.9rem;
        }
        
        /* 动画 */
        @keyframes float {
            0% {
                transform: translateY(0px);
            }
            50% {
                transform: translateY(-20px);
            }
            100% {
                transform: translateY(0px);
            }
        }
        
        .animate-on-scroll {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        
        .animate-on-scroll.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .hero {
                flex-direction: column;
                text-align: center;
                padding: 70px 0 50px;
            }
            
            .hero-content {
                padding-right: 0;
                margin-bottom: 50px;
            }
            
            .hero p {
                margin: 0 auto 30px;
            }
            
            .hero-buttons {
                justify-content: center;
            }
            
            .hero-stats {
                justify-content: center;
            }
            
            .download-content, .security-content {
                flex-direction: column;
                text-align: center;
            }
            
            .app-badges, .security-features {
                justify-content: center;
            }
            
            .download-text p, .security-text p {
                margin: 0 auto 30px;
            }
        }
        
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .feature-card {
                padding: 30px 20px;
            }
            
            .security-features {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 2rem;
            }
            
            .hero-buttons {
                flex-direction: column;
            }
            
            .stat-text h3 {
                font-size: 1.8rem;
            }
            
            .app-badges {
                flex-direction: column;
            }
            
            .badge {
                justify-content: center;
            }
            
            .footer-content {
                gap: 30px;
            }
        }