* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            color: #333;
            line-height: 1.6;
            background-color: #f8f9fa;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 顶部导航栏 */
        header {
            background-color: #e53935;
            color: white;
            padding: 15px 0;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            display: flex;
            align-items: center;
        }
        
        .logo span {
            color: #ffcc00;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 30px;
        }
        
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
            font-size: 1.05rem;
        }
        
        .nav-links a:hover {
            color: #ffcc00;
        }
        
        .download-btn {
            background-color: #ffcc00;
            color: #333;
            padding: 10px 25px;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s;
            border: none;
            cursor: button;
            text-decoration: none;
            display: inline-block;
        }
        
        .download-btn:hover {
            background-color: #ffd633;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(255, 204, 0, 0.3);
        }
        
        /* 英雄区域 */
        .hero {
            background: linear-gradient(135deg, #1a237e 0%, #283593 100%);
            color: white;
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 20px;
            font-weight: 800;
        }
        
        .hero h1 span {
            color: #ffcc00;
        }
        
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 40px;
            opacity: 0.9;
        }
        
        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-top: 30px;
        }
        
        .hero-btn-primary {
            background-color: #ffcc00;
            color: #333;
            padding: 16px 40px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.2rem;
            text-decoration: none;
            transition: all 0.3s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        
        .hero-btn-primary i {
            margin-right: 10px;
            font-size: 1.4rem;
        }
        
        .hero-btn-primary:hover {
            background-color: #ffd633;
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(255, 204, 0, 0.4);
        }
        
        .hero-btn-secondary {
            background-color: transparent;
            color: white;
            padding: 16px 40px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.2rem;
            text-decoration: none;
            transition: all 0.3s;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }
        
        .hero-btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: white;
        }
        
        /* 三步流程区域 */
        .steps-section {
            padding: 80px 0;
            background-color: white;
        }
        
        .section-title {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 60px;
            color: #1a237e;
        }
        
        .steps-container {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 30px;
        }
        
        .step-card {
            flex: 1;
            min-width: 300px;
            background-color: #f8f9fa;
            border-radius: 15px;
            padding: 40px 30px;
            text-align: center;
            transition: transform 0.3s, box-shadow 0.3s;
            border-top: 5px solid #ffcc00;
        }
        
        .step-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            background-color: #ffcc00;
            color: #333;
            font-weight: 700;
            font-size: 1.8rem;
            border-radius: 50%;
            margin-bottom: 25px;
        }
        
        .step-card h3 {
            font-size: 1.6rem;
            margin-bottom: 15px;
            color: #1a237e;
        }
        
        /* 图片展示区域 */
        .gallery-section {
            padding: 80px 0;
            background-color: #f0f2f5;
        }
        
        .gallery-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
            margin-top: 50px;
        }
        
        .gallery-item {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s;
        }
        
        .gallery-item:hover {
            transform: translateY(-5px);
        }
        
        .gallery-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        
        .gallery-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(0, 0, 0, 0.7);
            color: white;
            padding: 15px;
            text-align: center;
        }
        
        /* 平台特色区域 */
        .features-section {
            padding: 80px 0;
            background-color: white;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }
        
        .feature-card {
            background-color: white;
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s;
        }
        
        .feature-card:hover {
            transform: translateY(-5px);
        }
        
        .feature-icon {
            color: #ffcc00;
            font-size: 2.5rem;
            margin-bottom: 20px;
        }
        
        .feature-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: #1a237e;
        }
        
        /* 任务展示区域 */
        .tasks-section {
            padding: 80px 0;
            background-color: white;
        }
        
        .task-tabs {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
            margin-bottom: 40px;
        }
        
        .task-tab {
            padding: 12px 30px;
            background-color: #f0f2f5;
            border-radius: 50px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .task-tab.active {
            background-color: #ffcc00;
            color: #333;
        }
        
        .task-tab:hover {
            background-color: #e0e2e5;
        }
        
        .task-tab.active:hover {
            background-color: #ffd633;
        }
        
        .task-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 25px;
        }
        
        .task-item {
            background-color: #f8f9fa;
            border-radius: 12px;
            padding: 25px;
            border-left: 4px solid #ffcc00;
        }
        
        .task-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .task-platform {
            font-weight: 700;
            color: #1a237e;
        }
        
        .task-tag {
            background-color: #e8f5e9;
            color: #2e7d32;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
        }
        
        .task-stats {
            display: flex;
            justify-content: space-between;
            margin-top: 20px;
            font-size: 0.9rem;
            color: #666;
        }
        
        /* 收益展示区域 */
        .earnings-section {
            padding: 80px 0;
            background-color: #f0f2f5;
        }
        
        .earnings-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 50px;
        }
        
        .earnings-info {
            flex: 1;
            min-width: 300px;
        }
        
        .earnings-card {
            flex: 1;
            min-width: 300px;
            background-color: white;
            border-radius: 15px;
            padding: 35px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
        }
        
        .transaction {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            border-bottom: 1px solid #eee;
        }
        
        .transaction:last-child {
            border-bottom: none;
        }
        
        .transaction-amount {
            color: #4caf50;
            font-weight: 700;
            font-size: 1.5rem;
        }
        
        /* 巨额奖励区域 */
        .rewards-section {
            padding: 80px 0;
            background-color: white;
            text-align: center;
        }
        
        .reward-amount {
            font-size: 3.5rem;
            font-weight: 800;
            color: #e53935;
            margin: 30px 0;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
        }
        
        .reward-subtitle {
            font-size: 1.3rem;
            color: #666;
            margin-bottom: 50px;
        }
        
        .reward-cards {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 30px;
        }
        
        .reward-card {
            background-color: #f8f9fa;
            border-radius: 15px;
            padding: 40px 25px;
            width: 250px;
            transition: transform 0.3s;
        }
        
        .reward-card:hover {
            transform: translateY(-10px);
        }
        
        .reward-icon {
            font-size: 3rem;
            color: #ffcc00;
            margin-bottom: 20px;
        }
        
        /* 分享收益区域 */
        .share-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #1a237e 0%, #283593 100%);
            color: white;
            text-align: center;
        }
        
        .share-section h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }
        
        .share-section p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 40px;
            opacity: 0.9;
        }
        
        /* 底部区域 */
        footer {
            background-color: #2c3e50;
            color: white;
            padding: 60px 0 30px;
        }
        
        .footer-content {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-column {
            flex: 1;
            min-width: 250px;
        }
        
        .footer-column h3 {
            font-size: 1.3rem;
            margin-bottom: 25px;
            color: #ffcc00;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: #bdc3c7;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-links a:hover {
            color: #ffcc00;
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #34495e;
            color: #95a5a6;
            font-size: 0.9rem;
        }
        
        /* 二维码区域样式 */
        .qr-code-container {
            margin-top: 30px;
            text-align: center;
        }
        
        .qr-code-img {
            width: 150px;
            height: 150px;
            border: 1px solid #eee;
            border-radius: 8px;
            padding: 10px;
            background-color: white;
        }
        
        .qr-code-hint {
            margin-top: 15px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
        }
        
        .desktop-only {
            display: block;
        }
        
        .mobile-only {
            display: none;
        }
        
        @media (max-width: 768px) {
            .desktop-only {
                display: none;
            }
            
            .mobile-only {
                display: block;
            }
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 2.8rem;
            }
            
            .nav-links {
                display: none;
            }
            
            .mobile-menu-btn {
                display: block;
                background: none;
                border: none;
                color: white;
                font-size: 1.5rem;
                cursor: pointer;
            }
            
            .steps-container {
                flex-direction: column;
                align-items: center;
            }
            
            .step-card {
                width: 100%;
                max-width: 500px;
            }
        }
        
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.3rem;
            }
            
            .hero p {
                font-size: 1.1rem;
            }
            
            .hero-btns {
                flex-direction: column;
                align-items: center;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .reward-amount {
                font-size: 2.8rem;
            }
        }
        
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .animate-fadeInUp {
            animation: fadeInUp 0.8s ease forwards;
        }
               .earnings-image {
            width: 100%;
            max-width: 600px;
            margin: 0 auto;
        }
        
        .earnings-img {
            width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            display: block;
        }
        
        .image-caption {
            text-align: center;
            margin-top: 15px;
            font-size: 0.9rem;
            color: #666;
        }
        
        @media (max-width: 768px) {
            .earnings-image {
                padding: 0 15px;
            }
            
            .earnings-img {
                max-height: 300px;
                object-fit: contain;
            }
        }