:root {
            --primary-light: #e8f5e9;
            --primary: #4caf50;
            --primary-dark: #388e3c;
            --accent: #8bc34a;
            --gradient-start: #43a047;
            --gradient-end: #66bb6a;
            --text-primary: #333;
            --text-secondary: #666;
            --bg-light: #f9f9f9;
            --bg-white: #ffffff;
            --shadow: rgba(0, 0, 0, 0.1);
            --border: #e0e0e0;
            --success: #4caf50;
            --warning: #ff9800;
            --danger: #f44336;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
            background-color: var(--bg-light);
            color: var(--text-primary);
            line-height: 1.6;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 头部样式 */
        header {
            background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
            color: white;
            padding: 15px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        .logo-text {
            font-size: 28px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .logo-icon {
            width: 36px;
            height: 36px;
        }
        
        .nav-links {
            display: flex;
            gap: 30px;
        }
        
        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: opacity 0.3s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .nav-link:hover {
            opacity: 0.9;
        }
        
        /* 英雄区域 */
        .hero {
            padding: 60px 0 100px;
            background: linear-gradient(to bottom, var(--primary-light) 0%, #e3f2e4 100%);
            position: relative;
            overflow: hidden;
        }
        
        .hero-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 50px;
        }
        
        .hero-left {
            flex: 1;
            max-width: 600px;
        }
        
        .hero-title {
            font-size: 42px;
            color: var(--primary-dark);
            margin-bottom: 15px;
            font-weight: 700;
            line-height: 1.2;
        }
        
        .hero-subtitle {
            font-size: 22px;
            color: var(--text-secondary);
            margin-bottom: 30px;
        }
        
        .version-badge {
            display: inline-block;
            background-color: var(--primary);
            color: white;
            padding: 8px 20px;
            border-radius: 25px;
            font-size: 16px;
            margin-bottom: 25px;
            font-weight: 600;
        }
        
        /* 下载区域 - 重新布局 */
        .download-area {
            margin-top: 30px;
            display: flex;
            align-items: center;
            gap: 30px;
            flex-wrap: wrap;
        }
        
        .download-left {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        
        .download-icon {
            font-size: 50px;
            color: var(--primary);
        }
        
        .download-info {
            flex: 1;
        }
        
        /* 下载按钮 */
        .download-btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: linear-gradient(to right, var(--primary), var(--accent));
            color: white;
            border: none;
            border-radius: 12px;
            padding: 20px 40px;
            font-size: 22px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s;
            text-decoration: none;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(76, 175, 80, 0.3);
        }
        
        .download-btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(76, 175, 80, 0.4);
        }
        
        .download-btn:active {
            transform: translateY(-2px);
        }
        
        .download-btn i {
            font-size: 24px;
        }
        
        .software-properties {
            margin-top: 25px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            max-width: 500px;
        }
        
        .property-item {
            display: flex;
            flex-direction: column;
        }
        
        .property-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 5px;
        }
        
        .property-value {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary-dark);
        }
        
        /* 直接下载链接区域 */
        .direct-download {
            margin-top: 20px;
            background-color: rgba(255, 255, 255, 0.8);
            border-radius: 10px;
            padding: 15px;
            border-left: 4px solid var(--primary);
        }
        
        .direct-download-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--primary-dark);
        }
        
        .download-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        
        .download-link {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-primary);
            text-decoration: none;
            padding: 8px 12px;
            border-radius: 6px;
            transition: all 0.3s;
            border: 1px solid var(--border);
        }
        
        .download-link:hover {
            background-color: var(--primary-light);
            border-color: var(--primary);
        }
        
        .download-link i {
            color: var(--primary);
        }
        
        /* 软件截图区域 - 增加互动性 */
        .hero-right {
            flex: 1;
            max-width: 600px;
            position: relative;
        }
        
        .screenshot-container {
            position: relative;
            width: 100%;
            height: 400px;
            perspective: 1000px;
        }
        
        .screenshot {
            position: absolute;
            width: 100%;
            height: 100%;
            border-radius: 15px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
            background-color: white;
            overflow: hidden;
            transition: transform 0.8s ease, opacity 0.8s ease;
            cursor: pointer;
        }
        
        .screenshot-main {
            z-index: 3;
            transform: rotateY(0deg) translateZ(0);
            border: 5px solid white;
        }
        
        .screenshot-left {
            z-index: 2;
            transform: rotateY(-15deg) translateZ(-50px) translateX(-20%);
            opacity: 0.8;
        }
        
        .screenshot-right {
            z-index: 1;
            transform: rotateY(15deg) translateZ(-50px) translateX(20%);
            opacity: 0.8;
        }
        
        .screenshot:hover {
            transform: scale(1.02);
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
        }
        
        .screenshot-img {
            width: 100%;
            height: 100%;
            object-fit: contain; /* 修改为contain，防止图片被放大 */
            background-color: #f5f5f5;
        }
        
        .screenshot-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
            color: white;
            padding: 20px;
            transform: translateY(100%);
            transition: transform 0.5s ease;
        }
        
        .screenshot:hover .screenshot-overlay {
            transform: translateY(0);
        }
        
        .screenshot-nav {
            position: absolute;
            top: 50%;
            width: 100%;
            display: flex;
            justify-content: space-between;
            padding: 0 20px;
            transform: translateY(-50%);
            z-index: 10;
        }
        
        .screenshot-nav-btn {
            background-color: rgba(255, 255, 255, 0.8);
            border: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            font-size: 18px;
            color: var(--primary-dark);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s;
        }
        
        .screenshot-nav-btn:hover {
            background-color: white;
            transform: scale(1.1);
        }
        
        /* 下载流程模块 */
        .process-section {
            padding: 80px 0;
            background-color: white;
        }
        
        .section-title {
            text-align: center;
            font-size: 36px;
            color: var(--primary-dark);
            margin-bottom: 50px;
            font-weight: 700;
        }
        
        .process-steps {
            display: flex;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
        }
        
        .process-step {
            flex: 1;
            min-width: 250px;
            text-align: center;
            position: relative;
        }
        
        .process-step:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 60px;
            right: -30px;
            width: 60px;
            height: 3px;
            background-color: var(--primary);
            z-index: 1;
        }
        
        .step-icon {
            width: 120px;
            height: 120px;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            font-size: 50px;
            color: white;
            box-shadow: 0 10px 25px rgba(76, 175, 80, 0.3);
            position: relative;
            z-index: 2;
        }
        
        .step-number {
            position: absolute;
            top: -10px;
            right: -10px;
            background-color: var(--accent);
            color: white;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 20px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        .step-title {
            font-size: 22px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 15px;
        }
        
        .step-desc {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.5;
        }
        
        /* 进度条样式 */
        .progress-container {
            display: none;
            margin-top: 25px;
            background-color: var(--bg-light);
            border-radius: 10px;
            padding: 20px;
        }
        
        .progress-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
        }
        
        .progress-label {
            font-weight: 600;
        }
        
        .progress-percent {
            color: var(--primary);
            font-weight: 600;
        }
        
        .progress-bar {
            height: 12px;
            background-color: #e0e0e0;
            border-radius: 6px;
            overflow: hidden;
            margin-bottom: 10px;
        }
        
        .progress-fill {
            height: 100%;
            background: linear-gradient(to right, var(--accent), var(--primary));
            width: 0%;
            border-radius: 6px;
            transition: width 0.5s ease;
        }
        
        .progress-details {
            display: flex;
            justify-content: space-between;
            font-size: 14px;
            color: var(--text-secondary);
        }
        
        /* 安全验证区域 - 调整到底部 */
        .security-section {
            padding: 60px 0;
            background-color: var(--primary-light);
        }
        
        .security-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        
        .security-card {
            background-color: white;
            border-radius: 15px;
            padding: 30px;
            text-align: center;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
            transition: all 0.3s;
        }
        
        .security-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }
        
        .security-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 36px;
            color: white;
        }
        
        .security-title {
            font-size: 22px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }
        
        .security-desc {
            color: var(--text-secondary);
        }
        
        /* 常见问题 */
        .faq-section {
            padding: 60px 0;
            background-color: white;
        }
        
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-item {
            margin-bottom: 20px;
            border: 1px solid var(--border);
            border-radius: 10px;
            overflow: hidden;
        }
        
        .faq-question {
            padding: 20px;
            background-color: var(--bg-light);
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }
        
        .faq-item.active .faq-answer {
            padding: 20px;
            max-height: 300px;
        }
        
        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
        }
        
        .faq-toggle {
            font-size: 20px;
            color: var(--primary);
            transition: transform 0.3s;
        }
        
        /* 页脚 - 简化版 */
        footer {
            background-color: var(--primary-dark);
            color: white;
            padding: 60px 0 30px;
        }
        
        .footer-security {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }
        
        .security-badge {
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            padding: 20px;
            text-align: center;
            transition: all 0.3s;
        }
        
        .security-badge:hover {
            background-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-5px);
        }
        
        .security-badge i {
            font-size: 36px;
            color: var(--accent);
            margin-bottom: 15px;
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 14px;
            color: #bdbdbd;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .hero-content {
                flex-direction: column;
            }
            
            .hero-left, .hero-right {
                max-width: 100%;
            }
            
            .process-step:not(:last-child)::after {
                display: none;
            }
            
            .software-properties {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .hero-title {
                font-size: 32px;
            }
            
            .hero-subtitle {
                font-size: 18px;
            }
            
            .nav-links {
                display: none;
            }
            
            .process-steps {
                flex-direction: column;
                align-items: center;
            }
            
            .process-step {
                width: 100%;
                max-width: 400px;
            }
            
            .download-btn {
                padding: 18px 30px;
                font-size: 20px;
            }
            
            .software-properties {
                grid-template-columns: 1fr;
            }
        }
        
        /* 交互效果 */
        .pulse {
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.7); }
            70% { box-shadow: 0 0 0 15px rgba(76, 175, 80, 0); }
            100% { box-shadow: 0 0 0 0 rgba(76, 175, 80, 0); }
        }