* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        :root {
            --primary: #1652f0;
            --secondary: #0a39ab;
            --accent: #00c4ff;
            --dark: #0f172a;
            --light: #f8fafc;
            --gray: #94a3b8;
            --success: #10b981;
        }

        body {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: var(--light);
            line-height: 1.6;
            overflow-x: hidden;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 头部样式 */
        header {
            padding: 20px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(148, 163, 184, 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;
        }

        .logo-icon {
            color: var(--accent);
            font-size: 2.2rem;
        }

        .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;
        }

        .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: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
            color: white;
            border: none;
            padding: 12px 28px;
            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);
        }

        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(22, 82, 240, 0.4);
        }

        /* 英雄区域 */
        .hero {
            padding: 100px 0 70px;
            display: flex;
            align-items: center;
            min-height: 80vh;
        }

        .hero-content {
            flex: 1;
            padding-right: 40px;
        }

        .hero-image {
            flex: 1;
            display: flex;
            justify-content: center;
            position: relative;
        }

        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }

        .hero h1 span {
            color: var(--accent);
            position: relative;
        }

        .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;
        }

        .secondary-button {
            background: transparent;
            color: var(--light);
            border: 2px solid var(--gray);
            padding: 12px 28px;
            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);
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 50px;
        }

        .stat-item h3 {
            font-size: 2.5rem;
            color: var(--accent);
            margin-bottom: 5px;
        }

        .stat-item p {
            font-size: 1rem;
            color: var(--gray);
            margin: 0;
        }

        /* 功能区域 */
        .features {
            padding: 100px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 70px;
        }

        .section-title h2 {
            font-size: 2.5rem;
            margin-bottom: 15px;
        }

        .section-title p {
            color: var(--gray);
            max-width: 600px;
            margin: 0 auto;
            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);
        }

        .feature-card:hover {
            transform: translateY(-10px);
            background: rgba(30, 41, 59, 0.9);
            border-color: rgba(0, 196, 255, 0.2);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }

        .feature-icon {
            width: 70px;
            height: 70px;
            background: rgba(0, 196, 255, 0.1);
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
        }

        .feature-icon i {
            font-size: 30px;
            color: var(--accent);
        }

        .feature-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
        }

        .feature-card p {
            color: var(--gray);
        }

        /* 下载区域 */
        .download {
            padding: 100px 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.8) 0%, rgba(30, 41, 59, 0.8) 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;
        }

        .app-badges {
            display: flex;
            gap: 15px;
            margin-top: 30px;
        }

        .badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            padding: 12px 25px;
            border-radius: 10px;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .badge:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-3px);
        }

        .badge i {
            margin-right: 10px;
        }

        .download-image {
            flex: 1;
            text-align: center;
            position: relative;
        }

        .phone-mockup {
            max-width: 300px;
            position: relative;
            display: inline-block;
        }

        /* 底部样式 */
        footer {
            padding: 70px 0 30px;
            border-top: 1px solid rgba(148, 163, 184, 0.1);
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-logo {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .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;
        }

        .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;
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 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;
        }

        /* 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 {
                flex-direction: column;
                text-align: center;
            }
            
            .app-badges {
                justify-content: center;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .hero-stats {
                flex-wrap: wrap;
                justify-content: center;
            }
            
            .feature-card {
                padding: 30px 20px;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
        }

        @media (max-width: 480px) {
            .hero h1 {
                font-size: 2rem;
            }
            
            .hero-buttons {
                flex-direction: column;
            }
            
            .stat-item h3 {
                font-size: 2rem;
            }
            
            .app-badges {
                flex-direction: column;
            }
        }