:root {
            --primary: #6366f1;
            --primary-dark: #4f46e5;
            --primary-light: #818cf8;
            --secondary: #10b981;
            --accent: #f59e0b;
            --dark: #1f2937;
            --darker: #111827;
            --light: #f9fafb;
            --gray: #9ca3af;
            --glass-bg: rgba(255, 255, 255, 0.08);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-shadow: 0 8px 24px 0 rgba(31, 38, 135, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --section-spacing: 60px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
            background: linear-gradient(135deg, var(--darker) 0%, var(--dark) 100%);
            color: var(--light);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

        /* 玻璃态效果优化 */
        .glass {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            box-shadow: var(--glass-shadow);
            border-radius: 16px;
        }

        /* 导航栏优化 - 更紧凑 */
        .premium-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
            margin-bottom: 30px;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.3rem;
        }

        .nav-brand img {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            object-fit: cover;
        }

        .nav-actions {
            display: flex;
            gap: 12px;
        }

        .nav-btn {
            padding: 8px 16px;
            border-radius: 20px;
            text-decoration: none;
            color: var(--light);
            font-weight: 500;
            transition: var(--transition);
            font-size: 0.9rem;
        }

        .nav-btn:hover {
            background: var(--glass-bg);
        }

        /* 英雄区域优化 - 更紧凑布局 */
        .hero-section {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: var(--section-spacing);
            padding: 20px 0;
        }

        .hero-content {
            padding-right: 20px;
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 15px;
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 50%, var(--primary-dark) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--gray);
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .hero-price {
            display: inline-block;
            padding: 6px 16px;
            background: linear-gradient(135deg, var(--secondary) 0%, #059669 100%);
            border-radius: 20px;
            font-weight: 600;
            margin-bottom: 20px;
            font-size: 0.9rem;
        }

        .hero-actions {
            display: flex;
            gap: 12px;
        }

        .cta-button, .secondary-button {
            padding: 12px 24px;
            border-radius: 40px;
            text-decoration: none;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            font-size: 0.95rem;
        }

        .cta-button {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
        }

        .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(99, 102, 241, 0.45);
        }

        .secondary-button {
            background: transparent;
            color: var(--light);
            border: 1px solid var(--glass-border);
        }

        .secondary-button:hover {
            background: var(--glass-bg);
        }

        /* 视觉元素优化 */
        .hero-visual {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .floating-video,
        .floating-device {
            position: relative;
            width: 100%;
            max-width: 320px; /* 缩小视频预览尺寸 */
            border-radius: 24px;
            overflow: hidden;
            transform: perspective(1000px) rotateY(-10deg) rotateX(5deg);
            transition: var(--transition);
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
            margin: 0 auto;
        }

        .floating-video:hover,
        .floating-device:hover {
            transform: perspective(300px) rotateY(0) rotateX(0);
        }

        .video-preview {
            position: relative;
            cursor: pointer;
            overflow: hidden;
            border-radius: 24px;
        }

        .video-preview img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition);
        }

        .video-preview:hover img {
            transform: scale(1.05);
        }

        .play-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            background: rgba(0, 0, 0, 0.3);
            transition: var(--transition);
        }

        .play-overlay i {
            font-size: 4rem;
            color: white;
            opacity: 0.8;
            transition: var(--transition);
        }

        .video-preview:hover .play-overlay {
            background: rgba(0, 0, 0, 0.5);
        }

        .video-preview:hover .play-overlay i {
            opacity: 1;
            transform: scale(1.1);
        }

        /* 统计区域优化 - 更紧凑 */
        .stats-section {
            margin-bottom: var(--section-spacing);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 15px;
        }

        .stat-item {
            padding: 20px;
            text-align: center;
            border-radius: 16px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .stat-item:hover {
            transform: translateY(-3px);
            background: var(--glass-bg);
        }

        .stat-icon {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 12px;
            font-size: 1.3rem;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 5px;
            background: linear-gradient(135deg, var(--light) 0%, var(--gray) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-label {
            color: var(--gray);
            font-size: 0.85rem;
        }

        /* 分区标题优化 */
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            margin-bottom: 12px;
            background: linear-gradient(135deg, var(--light) 0%, var(--gray) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .section-header p {
            color: var(--gray);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* 媒体区域 */
        .media-section {
            margin-bottom: 80px;
        }

        .video-container {
            margin-bottom: 60px;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }

        .video-player {
            position: relative;
            width: 100%;
        }

        .video-player video {
            width: 100%;
            display: block;
            border-radius: 20px 20px 0 0;
            max-height: 60vh;
            object-fit: cover;
        }

        .video-controls {
            display: flex;
            align-items: center;
            padding: 15px 20px;
            background: var(--darker);
            border-radius: 0 0 20px 20px;
        }

        .control-btn {
            background: none;
            border: none;
            color: var(--light);
            font-size: 1.2rem;
            cursor: pointer;
            padding: 5px 10px;
            transition: var(--transition);
        }

        .control-btn:hover {
            color: var(--primary-light);
        }

        .progress-bar {
            flex: 1;
            height: 5px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 5px;
            margin: 0 15px;
            overflow: hidden;
            cursor: pointer;
        }

        .progress {
            height: 100%;
            background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: 5px;
            width: 0%;
        }

        .time {
            font-size: 0.9rem;
            color: var(--gray);
            margin: 0 15px;
        }

        /* 截图展示区域 - 网格布局替代轮播图 */
        .screenshots-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 40px 0;
        }

        .screenshot-item {
            border-radius: 12px;
            overflow: hidden;
            transition: var(--transition);
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
            cursor: pointer;
            position: relative;
            aspect-ratio: 16/9;
        }

        .screenshot-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .screenshot-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
        }

        .screenshot-item:hover img {
            transform: scale(1.05);
        }

        /* 灯箱效果 */
        .lightbox {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.9);
            z-index: 1000;
            justify-content: center;
            align-items: center;
        }

        .lightbox-content {
            max-width: 90%;
            max-height: 90%;
            position: relative;
        }

        .lightbox-content img {
            max-width: 100%;
            max-height: 90vh;
            border-radius: 8px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        }

        .lightbox-close {
            position: absolute;
            top: -40px;
            right: 0;
            color: white;
            font-size: 2rem;
            background: none;
            border: none;
            cursor: pointer;
        }

        .lightbox-nav {
            position: absolute;
            top: 50%;
            width: 100%;
            display: flex;
            justify-content: space-between;
            transform: translateY(-50%);
            padding: 0 20px;
        }

        .lightbox-prev,
        .lightbox-next {
            background: rgba(0, 0, 0, 0.5);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }

        .lightbox-prev:hover,
        .lightbox-next:hover {
            background: var(--primary);
        }

        /* 下载区域优化 */
        .downloads-section {
            margin-bottom: var(--section-spacing);
        }

        .downloads-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }

        .download-card {
            padding: 24px;
            border-radius: 16px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .download-card:hover {
            transform: translateY(-5px);
            background: var(--glass-bg);
        }

        .download-card-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .download-card-header .platform-icon {
            width: 45px;
            height: 45px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
        }

        .download-card-header h3 {
            font-size: 1.2rem;
            font-weight: 600;
        }

        .premium-download-btn {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 20px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            text-decoration: none;
            border-radius: 10px;
            font-weight: 600;
            transition: var(--transition);
            font-size: 0.9rem;
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
        }

        .premium-download-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(99, 102, 241, 0.45);
        }

        /* 联系区域优化 */
        .contact-section {
            margin-bottom: var(--section-spacing);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 25px;
        }

        .contact-card, .links-card {
            padding: 24px;
            border-radius: 16px;
            transition: var(--transition);
        }

        .contact-card:hover, .links-card:hover {
            transform: translateY(-3px);
            background: var(--glass-bg);
        }

        .card-header {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--glass-border);
        }

        .card-header i {
            font-size: 1.3rem;
            color: var(--primary);
        }

        .card-header h3 {
            font-size: 1.3rem;
            font-weight: 600;
        }

        .contact-list, .links-list {
            list-style: none;
        }

        .contact-item, .link-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .contact-item:last-child, .link-item:last-child {
            border-bottom: none;
        }

        .contact-icon, .link-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(99, 102, 241, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--primary);
        }

        .contact-info h4, .link-info h4 {
            font-size: 0.95rem;
            margin-bottom: 4px;
        }

        .contact-btn, .link-btn {
            padding: 6px 12px;
            border-radius: 16px;
            text-decoration: none;
            font-size: 0.8rem;
            font-weight: 500;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 页脚优化 */
        .premium-footer {
            text-align: center;
            padding: 30px 0;
            margin-top: 50px;
            border-top: 1px solid var(--glass-border);
        }

        .footer-content p {
            color: var(--gray);
            font-size: 0.9rem;
        }

        /* 复制成功提示 */
        .copy-notification {
            position: fixed;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%) translateY(100px);
            background: var(--primary);
            color: white;
            padding: 12px 20px;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
            transition: transform 0.3s ease;
            z-index: 1000;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .copy-notification.show {
            transform: translateX(-50%) translateY(0);
        }

        /* 响应式设计调整 */
        @media (max-width: 1024px) {
            .hero-section {
                grid-template-columns: 1fr;
                gap: 30px;
                text-align: center;
            }
            
            .hero-content {
                padding-right: 0;
            }
            
            .hero-title {
                font-size: 2.4rem;
            }
            
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 2rem;
            }
            
            .hero-actions {
                flex-direction: column;
            }
            
            .stats-grid {
                grid-template-columns: 1fr;
            }
            
            .contact-grid {
                grid-template-columns: 1fr;
            }
            
            .downloads-grid {
                grid-template-columns: 1fr;
            }
            
            .screenshots-grid {
                grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
                gap: 15px;
            }
            
            .floating-video {
                max-width: 280px !important;
            }
        }