        :root {
            --primary: #FE0640;
            --secondary: #ff6b94;
            --accent: #4494d5;
            --light: #fff9fb;
            --dark: #2a0a11;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* 头部导航 - 已优化为可折叠 */
        header {
            background-color: var(--primary);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(254, 6, 64, 0.3);
        }
        
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            position: relative;
        }
        
        .logo {
            height: 50px;
            margin-right: 15px;
        }
        
        .nav-links {
            display: flex;
            gap: 25px;
        }
        
        .nav-links a {
            color: white;
            text-decoration: none;
            font-size: 18px;
            font-weight: 500;
            padding: 8px 5px;
            position: relative;
            transition: all 0.3s ease;
        }
        
        .nav-links a:hover {
            transform: translateY(-2px);
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: white;
            transition: width 0.3s ease;
        }
        
        .nav-links a:hover::after {
            width: 100%;
        }
        
        /* 汉堡菜单图标 */
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            padding: 10px;
            z-index: 100;
        }
        
        .hamburger span {
            display: block;
            width: 30px;
            height: 3px;
            background: white;
            margin: 4px 0;
            border-radius: 3px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }
        
        /* 横幅部分 */
        .hero {
            background: linear-gradient(135deg, var(--primary) 0%, #ff2b5e 100%);
            padding: 60px 0 40px;
            position: relative;
            overflow: hidden;
        }
        
        .hero-content {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }
        
        .hero-text {
            flex: 1;
            min-width: 300px;
            color: white;
            padding-right: 30px;
        }
        
        .hero-text h1 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            line-height: 1.2;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }
        
        .hero-text p {
            font-size: 1.2rem;
            margin-bottom: 30px;
            max-width: 600px;
        }
        
        .bonus-badge {
            background: linear-gradient(45deg, #ffd700, #ff9800);
            color: #8a2b06;
            padding: 8px 20px;
            border-radius: 30px;
            font-weight: bold;
            display: inline-flex;
            align-items: center;
            margin: 15px 0;
            box-shadow: 0 4px 10px rgba(0,0,0,0.2);
            animation: pulse-gold 2s infinite;
        }
        
        .bonus-badge::before {
            content: "✨";
            margin-right: 8px;
            font-size: 1.2rem;
        }
        
        @keyframes pulse-gold {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }
        
        .download-btn {
            display: inline-block;
            background: white;
            color: var(--primary);
            padding: 14px 40px;
            border-radius: 50px;
            font-size: 1.2rem;
            font-weight: 700;
            text-decoration: none;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
            transition: all 0.3s ease;
            animation: pulse 2s infinite;
        }
        
        .download-btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 6px 20px rgba(0,0,0,0.3);
        }
        
        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(255,255,255,0.5); }
            70% { box-shadow: 0 0 0 15px rgba(255,255,255,0); }
            100% { box-shadow: 0 0 0 0 rgba(255,255,255,0); }
        }
        
        .hero-image {
            flex: 1;
            min-width: 300px;
            text-align: center;
            position: relative;
        }
        
        .hero-image img {
            max-width: 100%;
            height: auto;
            max-height: 500px;
            filter: drop-shadow(0 20px 30px rgba(0,0,0,0.3));
            transition: transform 0.5s ease;
        }
        
        .hero-image img:hover {
            transform: translateY(-10px);
        }
        
        .qr-section {
            background: rgba(255,255,255,0.2);
            border-radius: 15px;
            padding: 15px;
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            margin-top: 20px;
            backdrop-filter: blur(5px);
        }
        
        .qr-section img {
            width: 130px;
            height: 130px;
            margin-bottom: 10px;
        }
        
        .qr-section span {
            font-size: 1rem;
            color: white;
        }
        
        /* 产品优势 */
        .features {
            padding: 80px 0;
            background: white;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            color: var(--primary);
            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(--primary);
            border-radius: 2px;
        }
        
        .section-title p {
            font-size: 1.2rem;
            color: #666;
            max-width: 700px;
            margin: 20px auto 0;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        
        .feature-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid #f0f0f0;
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.12);
        }
        
        .feature-icon {
            height: 100px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(to right, var(--primary), var(--secondary));
        }
        
        .feature-icon i {
            font-size: 48px;
            color: white;
        }
        
        .feature-content {
            padding: 25px;
        }
        
        .feature-content h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--dark);
        }
        
        .feature-content p {
            color: #666;
            margin-bottom: 0;
            font-size: 1rem;
        }
        
        /* 悬赏任务展示 */
        .tasks-section {
            padding: 80px 0;
            background: linear-gradient(to bottom, #f8f9fa, #fff);
        }
        
        .tasks-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            margin-top: 40px;
        }
        
        .task-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
            border: 1px solid #eee;
        }
        
        .task-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.15);
        }
        
        .task-header {
            padding: 20px;
            background: linear-gradient(to right, #4494d5, #5fa8e6);
            color: white;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .task-price {
            font-size: 1.8rem;
            font-weight: bold;
        }
        
        .task-price::before {
            content: "¥";
            font-size: 1rem;
        }
        
        .task-type {
            background: rgba(255,255,255,0.2);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.9rem;
        }
        
        .task-content {
            padding: 20px;
        }
        
        .task-title {
            font-size: 1.2rem;
            margin-bottom: 15px;
            color: #333;
            font-weight: 600;
        }
        
        .task-desc {
            color: #666;
            font-size: 0.95rem;
            margin-bottom: 20px;
            line-height: 1.6;
        }
        
        .task-time {
            display: flex;
            justify-content: space-between;
            color: #888;
            font-size: 0.9rem;
            border-top: 1px solid #f0f0f0;
            padding-top: 15px;
            flex-wrap: wrap;
        }
        
        /* 赚钱流程 */
        .process-section {
            padding: 80px 0;
            background: white;
        }
        
        .process-steps {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            margin-top: 50px;
            position: relative;
        }
        
        .process-steps::before {
            content: '';
            position: absolute;
            top: 50px;
            left: 10%;
            width: 80%;
            height: 4px;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            z-index: 1;
        }
        
        .step {
            width: 20%;
            min-width: 200px;
            text-align: center;
            position: relative;
            z-index: 2;
            margin-bottom: 40px;
        }
        
        .step-icon {
            width: 100px;
            height: 100px;
            background: white;
            border: 4px solid var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 2.5rem;
            color: var(--primary);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        .step-content h3 {
            font-size: 1.3rem;
            margin-bottom: 10px;
            color: #333;
        }
        
        .step-content p {
            color: #666;
            font-size: 0.95rem;
            line-height: 1.5;
        }
        
        /* 用户评价 */
        .testimonials {
            padding: 80px 0;
            background: linear-gradient(to bottom, #fff, #f8f9fa);
        }
        
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        
        .testimonial-card {
            background: white;
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            border: 1px solid #f0f0f0;
            position: relative;
        }
        
        .testimonial-card::before {
            content: '"';
            position: absolute;
            top: 20px;
            left: 20px;
            font-size: 5rem;
            color: var(--primary);
            opacity: 0.1;
            font-family: Georgia, serif;
            line-height: 1;
        }
        
        .testimonial-content {
            position: relative;
            z-index: 1;
            margin-bottom: 20px;
        }
        
        .testimonial-content p {
            font-style: italic;
            color: #555;
            line-height: 1.8;
        }
        
        .testimonial-author {
            display: flex;
            align-items: center;
        }
        
        .author-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            overflow: hidden;
            margin-right: 15px;
            background: #f0f0f0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: bold;
        }
        
        .author-info h4 {
            margin: 0;
            color: var(--dark);
        }
        
        .author-info p {
            margin: 0;
            color: #777;
            font-size: 0.9rem;
        }
        
        .earning-badge {
            background: rgba(254, 6, 64, 0.1);
            color: var(--primary);
            padding: 3px 10px;
            border-radius: 4px;
            font-size: 0.85rem;
            margin-top: 5px;
            display: inline-block;
        }
        
        /* 常见问题 */
        .faq {
            padding: 80px 0;
            background: white;
        }
        
        .faq-grid {
            max-width: 800px;
            margin: 40px auto 0;
        }
        
        .faq-item {
            margin-bottom: 20px;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            border: 1px solid #eee;
        }
        
        .faq-question {
            padding: 20px;
            background: white;
            font-weight: 600;
            font-size: 1.1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.3s ease;
        }
        
        .faq-question:hover {
            background: #fcfcfc;
        }
        
        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            transition: transform 0.3s ease;
        }
        
        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
        }
        
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            background: white;
            font-size: 0.95rem;
        }
        
        .faq-item.active .faq-answer {
            padding: 0 20px 20px;
            max-height: 500px;
        }
        
        /* 下载区域 */
        .download-cta {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary) 0%, #ff2b5e 100%);
            text-align: center;
            color: white;
        }
        
        .download-cta h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }
        
        .download-cta p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 30px;
        }
        
        /* 页脚 */
        footer {
            background: #2a0a11;
            color: #ddd;
            padding: 60px 0 30px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-section h3 {
            color: white;
            margin-bottom: 25px;
            font-size: 1.3rem;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-section h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--primary);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: #aaa;
            text-decoration: none;
            transition: color 0.3s ease;
            display: inline-block;
        }
        
        .footer-links a:hover {
            color: white;
            transform: translateX(5px);
        }
        
        .footer-section p {
            color: #aaa;
            line-height: 1.6;
        }
        
        .contact-info p {
            margin-bottom: 10px;
            display: flex;
            align-items: flex-start;
            color: #aaa;
        }
        
        .contact-info i {
            margin-right: 10px;
            color: var(--primary);
            min-width: 20px;
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #888;
        }
        
        .copyright a {
            color: var(--primary);
            text-decoration: none;
        }
        
        .copyright a:hover {
            text-decoration: underline;
        }
        
        .friend-links {
            background: #1e080d;
            padding: 20px 0;
            text-align: center;
        }
        
        .friend-links .container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
        }
        
        .friend-links a {
            color: #aaa;
            text-decoration: none;
            transition: color 0.3s ease;
            white-space: nowrap;
            padding: 0 8px;
        }
        
        .friend-links a:hover {
            color: var(--primary);
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .hero-text h1 {
                font-size: 2.2rem;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .process-steps {
                flex-direction: column;
                align-items: center;
            }
            
            .process-steps::before {
                display: none;
            }
            
            .step {
                width: 100%;
                max-width: 350px;
                margin-bottom: 40px;
            }
            
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                background: var(--primary);
                width: 100%;
                flex-direction: column;
                padding: 15px 0;
                box-shadow: 0 5px 10px rgba(0,0,0,0.2);
            }
            
            .nav-links.show {
                display: flex;
            }
            
            .nav-links a {
                padding: 12px 20px;
                font-size: 1.1rem;
            }
            
            .hamburger {
                display: flex;
            }
        }
        
        @media (max-width: 768px) {
            .navbar {
                padding: 15px 0;
            }
            
            .hero-content {
                flex-direction: column;
                text-align: center;
            }
            
            .hero-text {
                padding-right: 0;
                margin-bottom: 40px;
            }
            
            .hero-text p {
                margin-left: auto;
                margin-right: auto;
            }
            
            .feature-content p, .task-desc, .step-content p {
                font-size: 0.95rem;
            }
            
            .footer-content {
                gap: 20px;
            }
        }
        
        @media (max-width: 576px) {
            .hero-text h1 {
                font-size: 1.8rem;
            }
            
            .download-btn {
                padding: 12px 30px;
                font-size: 1rem;
                display: block;
                margin: 0 auto;
            }
            
            .section-title h2 {
                font-size: 1.8rem;
            }
            
            .feature-content h3, .task-title {
                font-size: 1.2rem;
            }
            
            .hero-image img {
                max-height: 400px;
            }
            
            .qr-section {
                margin: 20px auto 0;
                width: 100%;
                max-width: 250px;
            }
            
            .task-content, .feature-content, .testimonial-card, .faq-question {
                padding: 15px;
            }
            
            .task-price {
                font-size: 1.5rem;
            }
            
            .step-icon {
                width: 80px;
                height: 80px;
                font-size: 2rem;
            }
        }
        
        @media (max-width: 480px) {
            .logo {
                height: 40px;
            }
            
            .hero {
                padding: 40px 0 20px;
            }
            
            .features, .tasks-section, .process-section, .testimonials, .faq, .download-cta {
                padding: 60px 0;
            }
            
            .section-title {
                margin-bottom: 40px;
            }
            
            .friend-links .container {
                flex-direction: column;
                gap: 10px;
            }
            
            .friend-links a {
                display: block;
                padding: 5px 0;
            }
            
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
        }