* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        :root {
            --primary-color: #1a1a2e;
            --secondary-color: #16213e;
            --accent-color: #0f3460;
            --gold-color: #e94560;
            --light-gold: #ff6b6b;
            --text-light: #eee;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            line-height: 1.8;
            color: #333;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            overflow-x: hidden;
        }
        
        /* 顶部导航 */
        .top-bar {
            background: rgba(26, 26, 46, 0.95);
            backdrop-filter: blur(10px);
            color: var(--text-light);
            padding: 0.5rem 0;
            text-align: center;
            font-size: 0.9rem;
            border-bottom: 2px solid var(--gold-color);
        }
        
        .top-bar a {
            color: var(--light-gold);
            text-decoration: none;
            font-weight: 600;
        }
        
        /* 主导航 */
        header {
            background: rgba(22, 33, 62, 0.98);
            backdrop-filter: blur(20px);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(233, 69, 96, 0.3);
        }
        
        nav {
            max-width: 1400px;
            margin: 0 auto;
            padding: 1.2rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            font-size: 2rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--gold-color), var(--light-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            letter-spacing: 2px;
            text-transform: uppercase;
        }
        
        .nav-links {
            display: none;
            list-style: none;
        }
        
        .nav-links.active {
            display: flex;
            flex-direction: column;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: rgba(22, 33, 62, 0.98);
            backdrop-filter: blur(20px);
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        }
        
        .nav-links li {
            margin: 0.8rem 0;
        }
        
        .nav-links a {
            color: var(--text-light);
            text-decoration: none;
            font-size: 1.1rem;
            font-weight: 600;
            padding: 0.8rem 1.5rem;
            display: block;
            border-radius: 8px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .nav-links a::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(233, 69, 96, 0.3), transparent);
            transition: 0.5s;
        }
        
        .nav-links a:hover::before {
            left: 100%;
        }
        
        .nav-links a:hover {
            background: rgba(233, 69, 96, 0.2);
            transform: translateX(10px);
        }
        
        .menu-toggle {
            display: flex;
            flex-direction: column;
            cursor: pointer;
            padding: 0.5rem;
        }
        
        .menu-toggle span {
            width: 30px;
            height: 3px;
            background: linear-gradient(90deg, var(--gold-color), var(--light-gold));
            margin: 4px 0;
            border-radius: 3px;
            transition: 0.3s;
        }
        
        /* 英雄区 */
        .hero {
            position: relative;
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        
        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('https://cntanghuang.com/lunbotu/3.webp') center/cover;
            animation: zoomIn 20s infinite alternate;
        }
        
        .hero-bg::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.9), rgba(15, 52, 96, 0.8));
        }
        
        @keyframes zoomIn {
            from { transform: scale(1); }
            to { transform: scale(1.1); }
        }
        
        .hero-content {
            position: relative;
            z-index: 1;
            text-align: center;
            color: var(--text-light);
            padding: 2rem;
            max-width: 900px;
        }
        
        .hero-title {
            font-size: 2.5rem;
            font-weight: 900;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, #fff, var(--light-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 0 30px rgba(255, 255, 255, 0.3);
            animation: fadeInUp 1s ease;
        }
        
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .hero-subtitle {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            opacity: 0.9;
            animation: fadeInUp 1s ease 0.2s both;
        }
        
        .hero-cta {
            display: inline-flex;
            gap: 1rem;
            animation: fadeInUp 1s ease 0.4s both;
        }
        
        .cta-btn {
            padding: 1rem 2.5rem;
            font-size: 1.1rem;
            font-weight: 700;
            text-decoration: none;
            border-radius: 50px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .cta-primary {
            background: linear-gradient(135deg, var(--gold-color), var(--light-gold));
            color: #fff;
            box-shadow: 0 10px 30px rgba(233, 69, 96, 0.4);
        }
        
        .cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(233, 69, 96, 0.6);
        }
        
        .cta-secondary {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(10px);
        }
        
        .cta-secondary:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: var(--light-gold);
        }
        
        /* 主容器 */
        .main-container {
            background: #f5f7fa;
            position: relative;
        }
        
        /* 特性区块 */
        .features-section {
            padding: 6rem 2rem;
            background: linear-gradient(180deg, #f5f7fa 0%, #fff 100%);
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 4rem;
        }
        
        .section-title {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--primary-color);
            margin-bottom: 1rem;
            position: relative;
            display: inline-block;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, var(--gold-color), var(--light-gold));
            border-radius: 2px;
        }
        
        .section-subtitle {
            font-size: 1.2rem;
            color: #666;
            margin-top: 1.5rem;
        }
        
        .features-grid {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        
        .feature-card {
            background: #fff;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
            transition: all 0.4s ease;
            position: relative;
        }
        
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(233, 69, 96, 0.05), rgba(102, 126, 234, 0.05));
            opacity: 0;
            transition: 0.4s;
        }
        
        .feature-card:hover::before {
            opacity: 1;
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
        }
        
        .feature-image {
            position: relative;
            height: 280px;
            overflow: hidden;
        }
        
        .feature-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .feature-card:hover .feature-image img {
            transform: scale(1.1);
        }
        
        .feature-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            background: linear-gradient(135deg, var(--gold-color), var(--light-gold));
            color: #fff;
            padding: 0.5rem 1.5rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: 0 5px 15px rgba(233, 69, 96, 0.4);
        }
        
        .feature-content {
            padding: 2rem;
        }
        
        .feature-title {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        
        .feature-desc {
            color: #555;
            line-height: 1.8;
            margin-bottom: 1.5rem;
        }
        
        .feature-highlights {
            list-style: none;
            margin-bottom: 1.5rem;
        }
        
        .feature-highlights li {
            padding: 0.5rem 0;
            padding-left: 2rem;
            position: relative;
            color: #444;
        }
        
        .feature-highlights li::before {
            content: '✦';
            position: absolute;
            left: 0;
            color: var(--gold-color);
            font-size: 1.2rem;
        }
        
        .feature-link {
            display: inline-flex;
            align-items: center;
            color: var(--gold-color);
            text-decoration: none;
            font-weight: 700;
            transition: all 0.3s ease;
        }
        
        .feature-link:hover {
            color: var(--light-gold);
            transform: translateX(5px);
        }
        
        /* 产品展示区 */
        .products-section {
            padding: 6rem 2rem;
            background: linear-gradient(180deg, #fff 0%, var(--secondary-color) 100%);
        }
        
        .products-grid {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr;
            gap: 3rem;
        }
        
        .product-card {
            background: rgba(255, 255, 255, 0.95);
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 15px 50px rgba(0, 0, 0, 0.2);
            transition: all 0.4s ease;
        }
        
        .product-card:hover {
            transform: scale(1.02);
            box-shadow: 0 20px 70px rgba(0, 0, 0, 0.3);
        }
        
        .product-header {
            background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
            color: #fff;
            padding: 2rem;
            text-align: center;
        }
        
        .product-name {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: 0.5rem;
        }
        
        .product-tagline {
            font-size: 1.1rem;
            opacity: 0.9;
        }
        
        .product-visual {
            padding: 2rem;
            display: flex;
            justify-content: center;
            align-items: center;
            background: linear-gradient(180deg, #f8f9fa, #fff);
        }
        
        .product-visual img {
            max-width: 100%;
            height: 300px;
            object-fit: contain;
            filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.2));
        }
        
        .product-details {
            padding: 2rem;
        }
        
        .product-features {
            list-style: none;
            margin-bottom: 2rem;
        }
        
        .product-features li {
            padding: 1rem;
            margin: 0.5rem 0;
            background: linear-gradient(90deg, rgba(233, 69, 96, 0.05), transparent);
            border-left: 4px solid var(--gold-color);
            border-radius: 8px;
        }
        
        .product-cta {
            display: flex;
            gap: 1rem;
        }
        
        .product-btn {
            flex: 1;
            padding: 1rem;
            text-align: center;
            text-decoration: none;
            border-radius: 12px;
            font-weight: 700;
            transition: all 0.3s ease;
        }
        
        .btn-purchase {
            background: linear-gradient(135deg, var(--gold-color), var(--light-gold));
            color: #fff;
            box-shadow: 0 5px 20px rgba(233, 69, 96, 0.3);
        }
        
        .btn-purchase:hover {
            box-shadow: 0 8px 30px rgba(233, 69, 96, 0.5);
            transform: translateY(-2px);
        }
        
        .btn-learn {
            background: rgba(233, 69, 96, 0.1);
            color: var(--gold-color);
            border: 2px solid var(--gold-color);
        }
        
        .btn-learn:hover {
            background: var(--gold-color);
            color: #fff;
        }
        
        /* 信任标志 */
        .trust-section {
            padding: 4rem 2rem;
            background: var(--primary-color);
            color: var(--text-light);
            text-align: center;
        }
        
        .trust-stats {
            max-width: 1200px;
            margin: 3rem auto;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        
        .stat-item {
            padding: 2rem;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 16px;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .stat-number {
            font-size: 3rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--gold-color), var(--light-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 0.5rem;
        }
        
        .stat-label {
            font-size: 1.1rem;
            opacity: 0.9;
        }
        
        /* FAQ区域 */
        .faq-section {
            padding: 6rem 2rem;
            background: #fff;
        }
        
        .faq-container {
            max-width: 1000px;
            margin: 0 auto;
        }
        
        .faq-item {
            background: #fff;
            border-radius: 16px;
            margin-bottom: 1.5rem;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
            overflow: hidden;
            border: 2px solid transparent;
            transition: all 0.3s ease;
        }
        
        .faq-item:hover {
            border-color: var(--gold-color);
            box-shadow: 0 8px 30px rgba(233, 69, 96, 0.15);
        }
        
        .faq-question {
            padding: 1.5rem 2rem;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary-color);
            background: linear-gradient(90deg, rgba(233, 69, 96, 0.05), transparent);
            border-left: 5px solid var(--gold-color);
        }
        
        .faq-answer {
            padding: 0 2rem 1.5rem;
            color: #555;
            line-height: 1.9;
        }
        
        /* 联系区域 */
        .contact-section {
            padding: 6rem 2rem;
            background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
            color: var(--text-light);
            text-align: center;
        }
        
        .contact-content {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .contact-title {
            font-size: 2.5rem;
            font-weight: 900;
            margin-bottom: 1.5rem;
        }
        
        .contact-text {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }
        
        .contact-btn {
            display: inline-block;
            padding: 1.2rem 3rem;
            background: linear-gradient(135deg, var(--gold-color), var(--light-gold));
            color: #fff;
            text-decoration: none;
            border-radius: 50px;
            font-size: 1.2rem;
            font-weight: 700;
            box-shadow: 0 10px 30px rgba(233, 69, 96, 0.4);
            transition: all 0.3s ease;
        }
        
        .contact-btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(233, 69, 96, 0.6);
        }
        
        /* 合作伙伴 */
        .partners-section {
            padding: 4rem 2rem;
            background: #f8f9fa;
        }
        
        .partners-container {
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .partners-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
            margin-top: 2rem;
        }
        
        .partner-link {
            padding: 1.2rem;
            background: #fff;
            border-radius: 12px;
            text-align: center;
            text-decoration: none;
            color: var(--accent-color);
            font-weight: 600;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
        }
        
        .partner-link:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(233, 69, 96, 0.15);
            color: var(--gold-color);
        }
        
        /* 页脚 */
        footer {
            background: var(--primary-color);
            color: var(--text-light);
            padding: 3rem 2rem 2rem;
            text-align: center;
        }
        
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        
        .footer-links a {
            color: var(--text-light);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        .footer-links a:hover {
            color: var(--light-gold);
        }
        
        .footer-bottom {
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            opacity: 0.8;
        }
        
        /* 响应式设计 */
        @media (min-width: 768px) {
            .nav-links {
                display: flex;
                flex-direction: row;
                position: static;
                background: transparent;
                padding: 0;
                box-shadow: none;
            }
            
            .nav-links li {
                margin: 0 0 0 2rem;
            }
            
            .nav-links a {
                padding: 0.5rem 1rem;
            }
            
            .menu-toggle {
                display: none;
            }
            
            .hero-title {
                font-size: 4rem;
            }
            
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .trust-stats {
                grid-template-columns: repeat(3, 1fr);
            }
            
            .partners-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        
        @media (min-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            
            .hero-title {
                font-size: 5rem;
            }
            
            .partners-grid {
                grid-template-columns: repeat(5, 1fr);
            }
        }