/* 全局CSS变量 */
        :root {
            --primary-color: #ff6b35;
            --secondary-color: #f7931e;
            --dark-bg: #0a0a0a;
            --dark-secondary: #1a1a2e;
            --dark-tertiary: #16213e;
            --glass-bg: rgba(255, 255, 255, 0.05);
            --glass-border: rgba(255, 255, 255, 0.1);
            --text-primary: #ffffff;
            --text-secondary: rgba(255, 255, 255, 0.8);
            --text-muted: rgba(255, 255, 255, 0.6);
            --border-radius: 15px;
            --border-radius-small: 8px;
            --transition: all 0.3s ease;
            --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            --shadow-hover: 0 15px 40px rgba(0, 0, 0, 0.4);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Noto Sans SC', sans-serif;
            background: var(--dark-bg);
            color: var(--text-primary);
            overflow-x: hidden;
            min-height: 100vh;
            line-height: 1.6;
        }
        
        /* 工具类 */
        .glass {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
        }
        
        .gradient-text {
            background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border: none;
            color: var(--text-primary);
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4);
        }
        
        /* 导航栏 - 居中对齐优化 */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(0, 0, 0, 0.9);
            backdrop-filter: blur(15px);
            padding: 12px 0;
            z-index: 1000;
            border-bottom: 1px solid var(--glass-border);
            transition: var(--transition);
        }
        
        .nav-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            align-items: center;
            padding: 0 30px;
            gap: 20px;
        }
        
        .nav-left {
            justify-self: start;
            display: flex;
            align-items: center;
        }
        
        .nav-center {
            justify-self: center;
            display: flex;
            align-items: center;
        }
        
        .nav-right {
            justify-self: end;
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .logo-container {
            display: flex;
            align-items: center;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .logo-container:hover {
            transform: scale(1.05);
        }
        
        .logo-container img {
            max-height: 40px;
            width: auto;
            transition: all 0.3s ease;
        }
        
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            text-decoration: none;
        }
        
        .logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            text-decoration: none;
        }
        
        .nav-menu {
            display: flex;
            list-style: none;
            gap: 35px;
        }
        
        .nav-menu a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            font-size: 14px;
            transition: var(--transition);
            position: relative;
            padding: 8px 4px;
            display: inline-block;
        }
        
        .nav-menu a:hover {
            color: var(--text-primary);
        }
        
        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }
        
        .nav-menu a:hover::after,
        .nav-menu a.active::after {
            width: 100%;
        }
        
        .nav-menu a.active {
            color: var(--primary-color);
        }
        
        .nav-special {
            color: var(--primary-color);
            font-weight: 600;
            font-size: 14px;
        }
        
        .auth-buttons {
            display: flex;
            gap: 10px;
        }
        
        .auth-btn {
            padding: 8px 20px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: transparent;
            color: var(--text-primary);
            text-decoration: none;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            transition: var(--transition);
        }
        
        .auth-btn:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-1px);
        }
        
        .auth-btn.register {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border: none;
        }
        
        .auth-btn.register:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
        }
        
        /* Hero区域 */
        .hero {
            position: relative;
            height: 100vh;
            background-image: url('../assets/app.ico');
			background-repeat: no-repeat; 
			background-size: cover;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        
        .hero-background {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
        }
        
        .hero-bg-gradient {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 30% 20%, rgba(255, 107, 53, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 70% 80%, rgba(247, 147, 30, 0.15) 0%, transparent 50%);
        }
        
        .hero-content {
            position: relative;
            z-index: 10;
            text-align: center;
            max-width: 800px;
            padding: 0 30px;
        }
        
        .hero-title {
            font-size: 4rem;
            font-weight: 900;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #ffffff, var(--primary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.1;
            animation: fadeInUp 1s ease forwards;
        }
        
        .hero-subtitle {
            font-size: 1.3rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.6;
            animation: fadeInUp 1s ease 0.2s forwards;
            opacity: 0;
        }
        
        .hero-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
            animation: fadeInUp 1s ease 0.4s forwards;
            opacity: 0;
        }
        
        .hero-btn {
            padding: 16px 40px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            gap: 10px;
            position: relative;
            overflow: hidden;
        }
        
        .hero-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s ease;
        }
        
        .hero-btn:hover::before {
            left: 100%;
        }
        
        .hero-btn.primary {
            background: linear-gradient(135deg, #ff6b35 0%, #f7931e 50%, #ff6b35 100%);
            background-size: 200% 200%;
            color: var(--text-primary);
            border: none;
            box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
            animation: gradientShift 3s ease infinite;
        }
        
        @keyframes gradientShift {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }
        
        .hero-btn.primary:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 8px 25px rgba(255, 107, 53, 0.5);
        }
        
        .hero-btn.primary:active {
            transform: translateY(-1px) scale(0.98);
        }
        
        .hero-btn.secondary {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
            border: 2px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(10px);
        }
        
        .hero-btn.secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 8px 25px rgba(255, 255, 255, 0.1);
        }
        
        .hero-btn.secondary:active {
            transform: translateY(-1px) scale(0.98);
        }
        
        /* 轮播图系统 */
        .carousel-section {
            position: relative;
            padding: 80px 0;
            background: var(--dark-secondary);
        }
        
        .carousel-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 30px;
        }
        
        .carousel-title {
            text-align: center;
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 50px;
            color: var(--primary-color);
        }
        
        .carousel {
            position: relative;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        
        .carousel-wrapper {
            position: relative;
            height: 500px;
            overflow: hidden;
        }
        
        .carousel-slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            transition: opacity 0.8s ease;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .carousel-slide.active {
            opacity: 1;
        }
        
        .carousel-slide-content {
            text-align: center;
            color: var(--text-primary);
            background: rgba(0, 0, 0, 0.6);
            padding: 40px;
            border-radius: var(--border-radius);
            backdrop-filter: blur(10px);
        }
        
        .carousel-slide h3 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--primary-color);
        }
        
        .carousel-slide p {
            font-size: 1.1rem;
            line-height: 1.6;
            color: var(--text-secondary);
        }
        
        .carousel-controls {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
        }
        
        .carousel-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.4);
            cursor: pointer;
            transition: var(--transition);
        }
        
        .carousel-dot.active {
            background: var(--primary-color);
            transform: scale(1.2);
        }
        
        .carousel-nav {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(0, 0, 0, 0.5);
            color: var(--text-primary);
            border: none;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            cursor: pointer;
            font-size: 18px;
            transition: var(--transition);
        }
        
        .carousel-nav:hover {
            background: rgba(0, 0, 0, 0.8);
            transform: translateY(-50%) scale(1.1);
        }
        
        .carousel-prev {
            left: 20px;
        }
        
        .carousel-next {
            right: 20px;
        }
        
        /* 推荐内容模块 */
        .recommendations-section {
            padding: 80px 0;
            background: var(--dark-bg);
        }
        
        .recommendations-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 30px;
        }
        
        .recommendations-title {
            text-align: center;
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 50px;
            color: var(--primary-color);
        }
        
        .recommendations-tabs {
            display: flex;
            justify-content: center;
            gap: 30px;
            margin-bottom: 40px;
        }
        
        .tab-button {
            padding: 14px 30px;
            background: rgba(255, 255, 255, 0.05);
            border: 2px solid rgba(255, 255, 255, 0.15);
            color: var(--text-secondary);
            border-radius: 25px;
            cursor: pointer;
            font-size: 14px;
            font-weight: 500;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            backdrop-filter: blur(10px);
            position: relative;
            overflow: hidden;
        }
        
        .tab-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
            transition: left 0.5s ease;
        }
        
        .tab-button:hover::before {
            left: 100%;
        }
        
        .tab-button.active {
            background: linear-gradient(135deg, #ff6b35 0%, #f7931e 50%, #ff6b35 100%);
            background-size: 200% 200%;
            border-color: transparent;
            color: var(--text-primary);
            box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
            animation: gradientShift 3s ease infinite;
        }
        
        .tab-button:hover {
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
        }
        
        .tab-button.active:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
        }
        
        .recommendations-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .recommendation-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--border-radius);
            padding: 25px;
            transition: var(--transition);
            cursor: pointer;
        }
        
        .recommendation-card:hover {
            transform: translateY(-5px);
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 107, 53, 0.3);
            box-shadow: var(--shadow-hover);
        }
        
        .recommendation-card h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        
        .recommendation-card p {
            color: var(--text-secondary);
            line-height: 1.6;
            font-size: 14px;
        }
        
        .recommendation-card .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 15px;
            font-size: 12px;
            color: var(--text-muted);
        }
        
        /* 高级下载区域 */
        .download-section {
            padding: 80px 0;
            background: var(--dark-secondary);
            position: relative;
        }
        
        .download-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 30px;
            text-align: center;
        }
        
        .download-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--primary-color);
        }
        
        .download-subtitle {
            font-size: 1.2rem;
            color: var(--text-secondary);
            margin-bottom: 50px;
        }
        
        .download-platforms {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 50px;
        }
        
        .platform-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--border-radius);
            padding: 30px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        
        .platform-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 107, 53, 0.1), transparent);
            transition: left 0.6s ease;
        }
        
        .platform-card:hover::before {
            left: 100%;
        }
        
        .platform-card:hover {
            transform: translateY(-10px);
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 107, 53, 0.4);
            box-shadow: 0 20px 50px rgba(255, 107, 53, 0.2);
        }
        
        .platform-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        
        .platform-name {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        
        .platform-info {
            color: var(--text-secondary);
            font-size: 14px;
            margin-bottom: 20px;
        }
        
        .premium-download-btn {
            width: 100%;
            padding: 16px 25px;
            background: linear-gradient(135deg, #ff6b35 0%, #f7931e 50%, #ff6b35 100%);
            background-size: 200% 200%;
            border: none;
            color: var(--text-primary);
            border-radius: 25px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
            animation: gradientShift 3s ease infinite;
        }
        
        .premium-download-btn::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 50%;
            transition: all 0.4s ease;
            transform: translate(-50%, -50%);
        }
        
        .premium-download-btn:hover::before {
            width: 300px;
            height: 300px;
        }
        
        .premium-download-btn:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 10px 30px rgba(255, 107, 53, 0.5);
        }
        
        .premium-download-btn:active {
            transform: translateY(0) scale(0.98);
        }
        
        .qr-download-section {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 20px;
            margin-top: 40px;
        }
        
        .qr-code-btn {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--border-radius);
            padding: 20px;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .qr-code-btn:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 107, 53, 0.5);
            transform: scale(1.05);
        }
        
        .qr-code-btn i {
            font-size: 2rem;
            color: var(--primary-color);
        }
        
        /* 视频模态框 */
        .video-modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.9);
            backdrop-filter: blur(10px);
            z-index: 2000;
            display: none;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        
        .video-modal.active {
            display: flex;
            opacity: 1;
        }
        
        .video-modal-content {
            position: relative;
            max-width: 90%;
            max-height: 90%;
            background: var(--dark-secondary);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
        }
        
        .video-modal-header {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            padding: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .video-modal-title {
            color: var(--text-primary);
            font-size: 1.2rem;
            font-weight: 600;
        }
        
        .video-modal-close {
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 5px;
            border-radius: 50%;
            transition: var(--transition);
        }
        
        .video-modal-close:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        
        .video-placeholder {
            width: 800px;
            height: 450px;
            background: linear-gradient(135deg, var(--dark-bg), var(--dark-secondary));
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
        }
        
        .video-placeholder i {
            font-size: 4rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        
        .video-placeholder h3 {
            font-size: 1.5rem;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        
        .video-placeholder p {
            text-align: center;
            line-height: 1.6;
        }
        
        /* QR码模态框 */
        .qr-modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.8);
            backdrop-filter: blur(10px);
            z-index: 2000;
            display: none;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        
        .qr-modal.active {
            display: flex;
            opacity: 1;
        }
        
        .qr-modal-content {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--border-radius);
            padding: 40px;
            text-align: center;
            position: relative;
            transform: scale(0.8);
            transition: transform 0.3s ease;
        }
        
        .qr-modal.active .qr-modal-content {
            transform: scale(1);
        }
        
        .qr-modal-close {
            position: absolute;
            top: 15px;
            right: 15px;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 5px;
            border-radius: 50%;
            transition: var(--transition);
        }
        
        .qr-modal-close:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        
        .qr-code-display {
            width: 200px;
            height: 200px;
            background: white;
            border-radius: var(--border-radius-small);
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: var(--dark-bg);
        }
        
        .qr-modal h3 {
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        
        .qr-modal p {
            color: var(--text-secondary);
            font-size: 14px;
        }
        
        /* 悬浮提示系统 */
        .tooltip {
            position: absolute;
            background: var(--dark-secondary);
            color: var(--text-primary);
            padding: 10px 15px;
            border-radius: var(--border-radius-small);
            font-size: 12px;
            white-space: nowrap;
            z-index: 1500;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
            border: 1px solid var(--glass-border);
            box-shadow: var(--shadow);
        }
        
        .tooltip.show {
            opacity: 1;
        }
        
        .tooltip::after {
            content: '';
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%);
            border: 5px solid transparent;
            border-top-color: var(--dark-secondary);
        }
        
        [data-tooltip] {
            position: relative;
        }
        
        [data-tooltip]:hover .tooltip {
            opacity: 1;
        }
        
        /* 标准化页脚 */
        .standard-footer {
            background: linear-gradient(135deg, var(--dark-secondary) 0%, var(--dark-tertiary) 100%);
            border-top: 1px solid var(--glass-border);
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 30px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
        }
        
        .footer-section {
            color: var(--text-secondary);
        }
        
        .footer-title {
            color: var(--text-primary);
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 20px;
            position: relative;
        }
        
        .footer-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 30px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
        }
        
        .footer-links {
            list-style: none;
            padding: 0;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 14px;
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: var(--primary-color);
            padding-left: 5px;
        }
        
        .footer-bottom {
            border-top: 1px solid var(--glass-border);
            margin-top: 40px;
            padding-top: 20px;
            text-align: center;
        }
        
        .footer-copyright {
            color: var(--text-muted);
            font-size: 12px;
            line-height: 1.6;
        }
        
        .footer-copyright p {
            margin: 5px 0;
        }
        
        /* 标准化页脚 */
        .standard-footer {
            background: linear-gradient(135deg, var(--dark-secondary) 0%, var(--dark-tertiary) 100%);
            border-top: 1px solid var(--glass-border);
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 30px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
        }
        
        .footer-section {
            color: var(--text-secondary);
        }
        
        .footer-title {
            color: var(--text-primary);
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 20px;
            position: relative;
        }
        
        .footer-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 30px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
        }
        
        .footer-links {
            list-style: none;
            padding: 0;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 14px;
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: var(--primary-color);
            padding-left: 5px;
        }
        
        .footer-bottom {
            border-top: 1px solid var(--glass-border);
            margin-top: 40px;
            padding-top: 20px;
            text-align: center;
        }
        
        .footer-copyright {
            color: var(--text-muted);
            font-size: 12px;
            line-height: 1.6;
        }
        
        .footer-copyright p {
            margin: 5px 0;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }
            
            .nav-container {
                padding: 0 20px;
            }
            
            .hero-title {
                font-size: 2.5rem;
            }
            
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .carousel-wrapper {
                height: 300px;
            }
            
            .carousel-slide-content {
                padding: 20px;
            }
            
            .carousel-slide h3 {
                font-size: 1.5rem;
            }
            
            .recommendations-tabs {
                flex-direction: column;
                align-items: center;
                gap: 15px;
            }
            
            .download-platforms {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            
            .video-placeholder {
                width: 90vw;
                height: 50vw;
                max-width: 600px;
                max-height: 340px;
            }
        }
        
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateX(-30px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }
        
        @keyframes pulse {
            0%, 100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.05);
            }
        }
        
        .fade-in {
            animation: fadeInUp 0.8s ease forwards;
        }
        
        .slide-in {
            animation: slideIn 0.8s ease forwards;
        }
        
        .pulse {
            animation: pulse 2s ease-in-out infinite;
        }
        
        .delay-1 { animation-delay: 0.2s; }
        .delay-2 { animation-delay: 0.4s; }
        .delay-3 { animation-delay: 0.6s; }
        .delay-4 { animation-delay: 0.8s; }

        /* 底部图片加h4代码 */
        .footer-top {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
            color: #ffffff;
        }

        /*.footer-age img {
            width: 100px;
            height: 100px;
            
        }

        .footer-age{
            display: flex;
            align-items: center;
            gap: 100px;
        }*/