* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
        }
        
        body {
            background-color: #0a1931;
            color: white;
            min-height: 100vh;
            padding: 20px;
            background-image: radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 20%), 
                              radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 20%);
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            min-height: 90vh;
            gap: 40px;
        }
        
        .left-section {
            flex: 1;
            min-width: 300px;
            padding: 20px;
        }
        
        .right-section {
            flex: 1;
            min-width: 300px;
            background-color: #1a2b4d;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }
        
        .app-screenshot {
            width: 100%;
            max-width: 300px;
            border-radius: 15px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
            margin-bottom: 20px;
        }
        
        .logo {
            font-size: 3.5rem;
            font-weight: 800;
            color: #ff7b00;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }
        
        .slogan {
            font-size: 1.8rem;
            margin-bottom: 20px;
            font-weight: 600;
        }
        
        .description {
            font-size: 1.1rem;
            line-height: 1.6;
            color: #c2d1e9;
            margin-bottom: 30px;
        }
        
        .highlight {
            color: #ff9c33;
            font-weight: 600;
        }
        
        .features {
            margin-bottom: 40px;
        }
        
        .feature-item {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .feature-icon {
            color: #ff7b00;
            margin-right: 10px;
            font-size: 1.2rem;
        }
        
        .download-btn {
            display: inline-block;
            background: linear-gradient(to right, #ff7b00, #ff9c33);
            color: white;
            font-size: 1.4rem;
            font-weight: 600;
            padding: 18px 40px;
            border-radius: 50px;
            text-decoration: none;
            box-shadow: 0 8px 20px rgba(255, 123, 0, 0.3);
            transition: all 0.3s ease;
            margin-bottom: 30px;
        }
        
        .download-btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 25px rgba(255, 123, 0, 0.4);
        }
        
        .download-btn i {
            margin-right: 10px;
        }
        
        
        .qrcode-container {
            background-color: white;
            padding: 10px;
            border-radius: 10px;
            width: 120px;
            height: 120px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .qrcode-img {
            width: 100px;
            height: 100px;
            object-fit: contain;
        }
        
        .qrcode-placeholder {
            width: 100px;
            height: 100px;
            background-color: #f0f0f0;
            border: 1px dashed #ccc;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #666;
            font-size: 0.9rem;
            text-align: center;
            padding: 5px;
        }
        
        .qrcode-text {
            font-size: 0.95rem;
            color: #c2d1e9;
            max-width: 150px;
        }
        
        /* 用户案例部分 */
        .user-cases {
            width: 100%;
            max-width: 1200px;
            margin: 60px auto 0;
            padding: 40px 20px;
            background-color: #1a2b4d;
            border-radius: 20px;
        }
        
        .section-title {
            font-size: 2rem;
            text-align: center;
            margin-bottom: 40px;
            color: #ff7b00;
        }
        
        .case-container {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            justify-content: center;
        }
        
        .case-item {
            flex: 1;
            min-width: 250px;
            max-width: 350px;
            background-color: #2a3d6d;
            border-radius: 15px;
            padding: 25px;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }
        
        .case-header {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .case-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background-color: #3a4f8d;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            color: #ff9c33;
            font-size: 1.5rem;
            font-weight: bold;
        }
        
        .case-user {
            font-size: 1.1rem;
            font-weight: 600;
        }
        
        .case-earn {
            color: #ffdd00;
            font-size: 0.9rem;
        }
        
        .case-content {
            font-size: 0.95rem;
            line-height: 1.6;
            color: #c2d1e9;
        }
        
        /* 图片介绍区域 */
        .image-showcase {
            width: 100%;
            max-width: 1200px;
            margin: 40px auto 0;
            padding: 40px 20px;
        }
        
        .image-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }
        
        .showcase-item {
            background-color: #1a2b4d;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }
        
        .showcase-img {
            width: 100%;
            height: 180px;
            background-color: #2a3d6d;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #a8c6ff;
            font-size: 1.2rem;
        }
        
        .showcase-text {
            padding: 15px;
            font-size: 0.95rem;
            line-height: 1.5;
        }
        
        /* 互动问答区域 */
        .faq-section {
            width: 100%;
            max-width: 1200px;
            margin: 60px auto 0;
            padding: 40px 20px;
            background-color: #1a2b4d;
            border-radius: 20px;
        }
        
        .faq-item {
            background-color: #2a3d6d;
            border-radius: 10px;
            margin-bottom: 15px;
            overflow: hidden;
        }
        
        .faq-question {
            padding: 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 1.1rem;
        }
        
        .faq-question i {
            transition: transform 0.3s ease;
        }
        
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            color: #c2d1e9;
            line-height: 1.6;
        }
        
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        
        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 20px 20px;
        }
        
        /* 底部区域 */
        .footer {
            width: 100%;
            max-width: 1200px;
            margin: 60px auto 20px;
            padding: 30px 20px;
            text-align: center;
            color: #a8c6ff;
            font-size: 0.9rem;
            border-top: 1px solid #2a3d6d;
        }
        
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 20px;
        }
        
        .footer-link {
            color: #ff9c33;
            text-decoration: none;
        }
        
        .footer-link:hover {
            text-decoration: underline;
        }
        
        /* 响应式调整 */
        @media (max-width: 768px) {
            .container {
                flex-direction: column;
                gap: 30px;
            }
            
            .left-section, .right-section {
                width: 100%;
            }
            
            .logo {
                font-size: 2.8rem;
            }
            
            .slogan {
                font-size: 1.5rem;
            }
            
            .case-item {
                min-width: 100%;
            }
            
            .footer-links {
                flex-wrap: wrap;
            }
        }