* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'PingFang SC', 'Microsoft YaHei', 'SF Pro Display', sans-serif;
        }

        :root {
            --primary: #1976de;
            --primary-light: #4a9bf7;
            --primary-dark: #0d5cb6;
            --secondary: #ff3b80;
            --accent: #00e5ff;
            --dark: #0a0f1c;
            --light: #f0f4ff;
        }

        html, body {
            height: 100%;
            overflow: hidden;
        }

        body {
            background: var(--dark);
            color: white;
            margin: 0;
        }

        /* 主容器 */
        .main-container {
            height: 100vh;
            width: 100vw;
            overflow: hidden;
            position: relative;
        }

        .sections-wrapper {
            position: relative;
            height: 100%;
            width: 100%;
            transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .section {
            height: 100vh;
            width: 100vw;
            position: absolute;
            top: 0;
            left: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            pointer-events: none;
            visibility: hidden;
        }

        .section.active {
            opacity: 1;
            transform: translateY(0);
            pointer-events: all;
            visibility: visible;
        }

        /* Logo */
        .logo {
            position: fixed;
            top: 2rem;
            left: 2rem;
            width: 48px;
            height: 48px;
            background: linear-gradient(45deg, var(--primary), var(--accent));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: bold;
            color: white;
            z-index: 1000;
            box-shadow: 0 8px 25px rgba(25, 118, 222, 0.4);
        }

        /* 导航 */
        .nav-dots {
            position: fixed;
            right: 3rem;
            top: 50%;
            transform: translateY(-50%);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .nav-dot {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            border: 2px solid transparent;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
        }

        .nav-dot.active {
            background: var(--accent);
            transform: scale(1.3);
            box-shadow: 0 0 20px var(--accent);
        }

        .nav-dot::after {
            content: attr(data-tooltip);
            position: absolute;
            right: 25px;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(0, 0, 0, 0.8);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            font-size: 0.9rem;
            white-space: nowrap;
            opacity: 0;
            transition: opacity 0.3s;
        }

        .nav-dot:hover::after {
            opacity: 1;
        }

        /* 移动端切换按钮 */
        .mobile-nav-toggle {
            position: fixed;
            top: 2rem;
            right: 2rem;
            width: 48px;
            height: 48px;
            background: linear-gradient(45deg, var(--primary), var(--accent));
            border-radius: 12px;
            display: none;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: white;
            z-index: 1001;
            box-shadow: 0 8px 25px rgba(25, 118, 222, 0.4);
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .mobile-nav-toggle:hover {
            transform: scale(1.1);
        }

        .mobile-nav-menu {
            position: fixed;
            top: 0;
            right: -300px;
            width: 280px;
            height: 100%;
            background: rgba(10, 15, 28, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1002;
            padding: 5rem 2rem 2rem;
            transition: right 0.4s ease;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            overflow-y: auto;
        }

        .mobile-nav-menu.active {
            right: 0;
        }

        .mobile-nav-item {
            padding: 1rem;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.05);
            color: white;
            text-decoration: none;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            transition: all 0.3s ease;
        }

        .mobile-nav-item.active {
            background: rgba(25, 118, 222, 0.3);
            border-left: 4px solid var(--accent);
        }

        .mobile-nav-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateX(5px);
        }

        .mobile-nav-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(5px);
            z-index: 1001;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }

        .mobile-nav-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        /* 首页 - 英雄区域 */
        .hero {
            background: 
                radial-gradient(circle at 20% 80%, rgba(25, 118, 222, 0.3) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 59, 128, 0.2) 0%, transparent 50%),
                linear-gradient(135deg, #0a0f1c 0%, #1a1f36 100%);
            text-align: center;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            padding: 0 2rem;
            width: 100%;
        }

        .main-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            background: linear-gradient(45deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .tagline {
            font-size: 1.3rem;
            margin-bottom: 3rem;
            color: rgba(255, 255, 255, 0.8);
            font-weight: 300;
            line-height: 1.6;
        }

        /* 产品展示区域 */
        .product-section {
            background: 
                radial-gradient(circle at 10% 10%, rgba(25, 118, 222, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 90% 90%, rgba(255, 59, 128, 0.1) 0%, transparent 50%),
                linear-gradient(135deg, #0a0f1c 0%, #1a1f36 100%);
        }

        .product-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            height: 100%;
            align-items: center;
            padding: 0 4rem;
            gap: 3rem;
            max-width: 1400px;
            margin: 0 auto;
            width: 100%;
        }

        .product-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .product-number {
            font-size: 6rem;
            font-weight: 900;
            color: rgba(255, 255, 255, 0.05);
            position: absolute;
            top: -2rem;
            left: -1rem;
            z-index: -1;
        }

        .product-title {
            font-size: 2.8rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            background: linear-gradient(45deg, var(--primary-light), white);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .product-title i {
            font-size: 2.8rem;
            color: var(--accent);
        }

        .product-description {
            font-size: 1.1rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 2rem;
        }

        .product-features {
            list-style: none;
            margin-bottom: 2rem;
        }

        .product-features li {
            padding: 0.6rem 0;
            font-size: 1rem;
            display: flex;
            align-items: center;
            gap: 0.8rem;
            color: rgba(255, 255, 255, 0.9);
        }

        .product-features li i {
            color: var(--accent);
            font-size: 1.1rem;
        }

        .product-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.8rem;
            padding: 0.9rem 2rem;
            background: linear-gradient(45deg, var(--primary), var(--primary-light));
            color: white;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all 0.3s ease;
            box-shadow: 0 8px 25px rgba(25, 118, 222, 0.4);
            border: none;
            cursor: pointer;
        }

        .product-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(25, 118, 222, 0.6);
        }

        .product-visual {
            position: relative;
            height: 70%;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* 浮动形状 */
        .floating-shape {
            position: absolute;
            border-radius: 50%;
            background: linear-gradient(45deg, var(--primary), var(--accent));
            opacity: 0.6;
            filter: blur(30px);
            animation: float 8s ease-in-out infinite;
        }

        .shape-1 {
            width: 200px;
            height: 200px;
            top: 15%;
            left: 15%;
            animation-delay: 0s;
        }

        .shape-2 {
            width: 150px;
            height: 150px;
            bottom: 25%;
            right: 20%;
            background: linear-gradient(45deg, var(--secondary), #ff8a00);
            animation-delay: 2s;
        }

        .shape-3 {
            width: 120px;
            height: 120px;
            top: 60%;
            left: 70%;
            background: linear-gradient(45deg, var(--accent), #00b8d4);
            animation-delay: 4s;
        }

        /* 水珠效果 */
        .bubble {
            position: absolute;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.3));
            pointer-events: none;
            opacity: 0;
            z-index: 1;
        }

        /* 版权信息 */
        .footer-info {
            position: absolute;
            bottom: 2rem;
            left: 0;
            right: 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 2rem;
            opacity: 0.3;
            transition: opacity 0.3s ease;
        }

        .footer-info:hover {
            opacity: 0.8;
        }

        .copyright {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.7);
        }

        .filing {
            display: flex;
            gap: 1.5rem;
        }

        .filing a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            font-size: 0.8rem;
            transition: color 0.3s;
        }

        .filing a:hover {
            color: var(--accent);
        }

        /* 动画 */
        @keyframes float {
            0%, 100% { 
                transform: translateY(0px) rotate(0deg) scale(1); 
            }
            33% { 
                transform: translateY(-15px) rotate(120deg) scale(1.05); 
            }
            66% { 
                transform: translateY(5px) rotate(240deg) scale(0.95); 
            }
        }

        @keyframes bubbleFloat {
            0% {
                transform: translateY(0) scale(0);
                opacity: 0;
            }
            20% {
                opacity: 0.8;
            }
            100% {
                transform: translateY(-120px) scale(1.2);
                opacity: 0;
            }
        }

        /* 响应式 - 移动端优化 */
        @media (max-width: 1024px) {
            .product-container {
                grid-template-columns: 1fr;
                padding: 0 2rem;
                text-align: center;
                gap: 2rem;
                height: auto;
                align-items: center;
                justify-content: center;
            }

            .nav-dots {
                right: 1.5rem;
            }

            .product-title {
                font-size: 2.2rem;
            }

            .product-title i {
                font-size: 2.2rem;
            }

            .main-title {
                font-size: 2.5rem;
            }

            .product-number {
                font-size: 4rem;
                top: -1rem;
                left: 0;
            }

            .product-visual {
                height: 200px;
                margin-top: 1rem;
            }

            /* 移动端浮动形状调整 */
            .floating-shape {
                opacity: 0.4;
                filter: blur(20px);
            }

            .shape-1 {
                width: 120px;
                height: 120px;
            }

            .shape-2 {
                width: 100px;
                height: 100px;
            }

            .shape-3 {
                width: 80px;
                height: 80px;
            }
        }

        @media (max-width: 768px) {
            .nav-dots {
                display: none;
            }
            
            .mobile-nav-toggle {
                display: flex;
            }
            
            .footer-info {
                flex-direction: column;
                gap: 0.5rem;
                text-align: center;
            }
            
            .filing {
                flex-direction: column;
                gap: 0.3rem;
            }

            .copyright, .filing a {
                font-size: 0.7rem;
            }

            .main-title {
                font-size: 2rem;
                margin-bottom: 1rem;
            }

            .tagline {
                font-size: 1.1rem;
                margin-bottom: 2rem;
            }

            .product-title {
                font-size: 1.8rem;
                margin-bottom: 1rem;
                justify-content: center;
            }

            .product-title i {
                font-size: 1.8rem;
            }

            .product-container {
                padding: 0 1.5rem;
                gap: 1.5rem;
            }

            .product-content {
                padding: 1rem 0;
            }

            .product-description {
                font-size: 1rem;
                margin-bottom: 1.5rem;
            }

            .product-features {
                margin-bottom: 1.5rem;
            }

            .product-features li {
                font-size: 0.9rem;
                padding: 0.4rem 0;
            }

            .product-btn {
                padding: 0.8rem 1.5rem;
                font-size: 0.9rem;
            }

            .hero-content {
                padding: 0 1.5rem;
            }

            /* 移动端垂直居中优化 */
            .section {
                align-items: center;
                justify-content: center;
                padding: 1rem 0;
            }

            .product-section .product-container {
                height: auto;
                min-height: auto;
                align-items: center;
                justify-content: center;
            }

            /* 确保移动端背景显示 */
            .product-section {
                background: 
                    radial-gradient(circle at 10% 10%, rgba(25, 118, 222, 0.1) 0%, transparent 50%),
                    radial-gradient(circle at 90% 90%, rgba(255, 59, 128, 0.1) 0%, transparent 50%),
                    linear-gradient(135deg, #0a0f1c 0%, #1a1f36 100%) !important;
            }

            /* 移动端文字垂直居中 */
            .product-content {
                display: flex;
                flex-direction: column;
                justify-content: center;
                align-items: center;
                text-align: center;
                height: 100%;
            }

            .product-container {
                display: flex;
                flex-direction: column;
                justify-content: center;
                align-items: center;
                height: 100%;
            }
        }

        @media (max-width: 480px) {
            .main-title {
                font-size: 1.8rem;
            }

            .product-title {
                font-size: 1.6rem;
            }

            .product-title i {
                font-size: 1.6rem;
            }

            .product-container {
                padding: 0 1rem;
            }

            .hero-content {
                padding: 0 1rem;
            }

            .logo {
                top: 1rem;
                left: 1rem;
                width: 40px;
                height: 40px;
                font-size: 1.2rem;
            }

            .mobile-nav-toggle {
                top: 1rem;
                right: 1rem;
                width: 40px;
                height: 40px;
                font-size: 1.2rem;
            }

            .footer-info {
                bottom: 1rem;
                padding: 0 1rem;
            }

            /* 小屏幕文字居中优化 */
            .product-content {
                padding: 0.5rem 0;
            }

            .product-number {
                font-size: 3rem;
                top: -0.5rem;
            }
        }

        /* 确保移动端内容垂直居中 */
        @media (max-height: 700px) and (max-width: 768px) {
            .section {
                align-items: center;
                justify-content: center;
                padding-top: 0;
                overflow-y: auto;
            }

            .product-container {
                height: auto;
                min-height: 100%;
                padding: 2rem 1.5rem;
                justify-content: center;
            }

            .hero-content {
                padding-top: 0;
            }

            .product-content {
                justify-content: center;
            }
        }

        /* 超小屏幕优化 */
        @media (max-width: 360px) {
            .main-title {
                font-size: 1.6rem;
            }

            .product-title {
                font-size: 1.4rem;
            }

            .product-title i {
                font-size: 1.4rem;
            }

            .product-description {
                font-size: 0.9rem;
            }

            .product-features li {
                font-size: 0.85rem;
            }

            .product-btn {
                padding: 0.7rem 1.2rem;
                font-size: 0.85rem;
            }
        }