:root {
            --primary: #0f3057;
            --secondary: #00587a;
            --accent: #f08a5d;
            --accent-light: #ff9a76;
            --light: #e7e7de;
            --dark: #0a1a2d;
            --text: #333333;
            --gray: #8a99b0;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Roboto', sans-serif;
            background: linear-gradient(135deg, var(--dark), #122a45);
            color: var(--light);
            line-height: 1.7;
            overflow-x: hidden;
            background-attachment: fixed;
            position: relative;
        }
        
        h1, h2, h3, h4, h5 {
            font-family: 'Montserrat', sans-serif;
            font-weight: 700;
            line-height: 1.3;
        }
        ul,li{
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 导航栏样式 */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            padding: 20px 0;
            transition: all 0.4s ease;
            backdrop-filter: blur(10px);
            background: rgba(15, 48, 87, 0.85);
            border-bottom: 1px solid rgba(240, 138, 93, 0.2);
        }
        
        .navbar.scrolled {
            padding: 15px 0;
            background: rgba(10, 26, 45, 0.95);
        }
        
        .nav-container {
            display: flex;
    align-items: center;
    justify-content: space-evenly;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .logo img{
            width: 200px;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: white;
        }
        
        .logo-text {
            font-size: 24px;
            font-weight: 700;
            background: linear-gradient(to right, var(--accent), var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .navlist{
            padding: 0 20px;
            height: 50px;
            overflow-x: auto;
        }
        .nav-links {
            /* display: flex;
            list-style: none;
            gap: 30px; */
            width: 600px;
            height: 40px;
            overflow: hidden;
        }
        .navli{

            width: 100px;
            padding: 12px 0;
            float: left;
        }
        .nav-link {
            color: var(--light);
            text-decoration: none;
            font-weight: 500;
            font-size: 16px;
            position: relative;
            padding: 5px 0;
            transition: all 0.3s ease;
        }
        
        .nav-link:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: all 0.3s ease;
        }
        
        .nav-link:hover:after,
        .nav-link.active:after {
            width: 100%;
        }
        
        .nav-link:hover {
            color: white;
        }
        .cta-button2 {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: white;
            border: none;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(240, 138, 93, 0.3);
        }
        
        .cta-button2:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(240, 138, 93, 0.4);
        }
        .cta-button1 {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: white;
            border: none;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(240, 138, 93, 0.3);
                position: absolute;
            right: 50px;
            top: 15px;
        }
        
        .cta-button1:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(240, 138, 93, 0.4);
        }
        
        /* 轮播图样式 */
        .hero {
            height: 100vh;
            min-height: 700px;
            position: relative;
            display: flex;
            align-items: center;
            overflow: hidden;
            padding-top: 80px;
        }
        
        .hero-slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            transition: opacity 1s ease;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
        }
        
        .hero-slide.active {
            opacity: 1;
        }
        
        .slide-1 {
            background: linear-gradient(rgba(10, 26, 45, 0.85), rgba(10, 26, 45, 0.85)), 
                        url('https://images.unsplash.com/photo-1534438327276-14e5300c3a48?ixlib=rb-4.0.3&auto=format&fit=crop&w=1800&q=80');
        }
        
        .slide-2 {
            background: linear-gradient(rgba(10, 26, 45, 0.85), rgba(10, 26, 45, 0.85)), 
                        url('https://images.unsplash.com/photo-1571019613454-1cb2f99b2d8b?ixlib=rb-4.0.3&auto=format&fit=crop&w=1800&q=80');
        }
        
        .slide-3 {
            background: linear-gradient(rgba(10, 26, 45, 0.85), rgba(10, 26, 45, 0.85)), 
                        url('https://images.unsplash.com/photo-1519505907962-0a6cb0167c73?ixlib=rb-4.0.3&auto=format&fit=crop&w=1800&q=80');
        }
        
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 650px;
            padding: 0 20px;
        }
        
        .hero-title {
            font-size: 56px;
            margin-bottom: 20px;
            background: linear-gradient(to right, #fff, var(--light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
        }
        
        .hero-subtitle {
            font-size: 20px;
            margin-bottom: 30px;
            color: var(--gray);
        }
        
        .hero-buttons {
            display: flex;
            gap: 20px;
            margin-top: 40px;
        }
        
        .btn-outline {
            background: transparent;
            border: 2px solid var(--accent);
            color: var(--accent);
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .btn-outline:hover {
            background: var(--accent);
            color: white;
        }
        
        /* 功能展示区 */
        .section {
            padding: 100px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 70px;
        }
        
        .section-title h2 {
            font-size: 42px;
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }
        
        .section-title h2:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
        }
        
        .section-title p {
            max-width: 700px;
            margin: 25px auto 0;
            font-size: 18px;
            color: var(--gray);
        }
        
        .features-grid1 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .feature-card1 {
            background: rgba(15, 48, 87, 0.6);
            border-radius: 20px;
            padding: 40px 30px;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(240, 138, 93, 0.15);
            backdrop-filter: blur(10px);
        }
        .tanbox{
            width: 100%;
            height: 100vh;
            background-color: rgba(0, 0, 0, 0.7);
            position: fixed;
            z-index: 9999;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .tanbox div{
            max-width: 800px;max-height:500px;
            background: rgba(15, 48, 87, 0.6);
            border-radius: 20px;
            padding: 40px 30px;
            transition: all 0.4s ease;
            overflow: hidden;
            border: 1px solid rgba(240, 138, 93, 0.15);
            backdrop-filter: blur(10px);
            text-align: center;
        }
        .tanbox .qrcode{
            width: 200px;
            margin: 30px
        }
        .closebox{
            width: 35px;
            height: 35px;
            position: absolute;
            top: 20px;
            right: 20px;
        }
        .feature-card1:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            opacity: 0;
            transition: all 0.3s ease;
        }
        
        .feature-card1:hover:before {
            opacity: 1;
        }
        
        .feature-card1:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            background: rgba(15, 48, 87, 0.8);
            border-color: rgba(240, 138, 93, 0.3);
        }
        
        .feature-icon1{
            width: 70px;
            height: 70px;
            background: rgba(240, 138, 93, 0.1);
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            font-size: 28px;
            color: var(--accent);
        }
        
        .feature-card1 h3 {
            font-size: 22px;
            margin-bottom: 15px;
            color: white;
        }
        
        .feature-card1 p {
            color: var(--gray);
            margin-bottom: 20px;
        }
        
        .feature-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }
        
        .tag {
            background: rgba(240, 138, 93, 0.15);
            color: var(--accent);
            padding: 6px 15px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
        }
        
        /* 硬件展示 */
        .hardware-section {
            background: linear-gradient(135deg, rgba(10, 26, 45, 0.9), rgba(15, 48, 87, 0.9));
            position: relative;
            overflow: hidden;
        }
        
        .hardware-section:before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(240, 138, 93, 0.05) 0%, transparent 70%);
            z-index: 0;
        }
        
        .hardware-grid1 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            position: relative;
            z-index: 2;
        }
        
        .hardware-card {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 20px;
            padding: 40px 30px;
            text-align: center;
            transition: all 0.4s ease;
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(10px);
        }
        
        .hardware-card:hover {
            transform: translateY(-10px);
            background: rgba(255, 255, 255, 0.08);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }
        
        .hardware-icon1 {
            width: 80px;
            height: 80px;
            margin: 0 auto 25px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 36px;
            color: var(--accent);
            position: relative;
        }
        
        .hardware-icon1:after {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background: rgba(240, 138, 93, 0.1);
            animation: pulse 2s infinite;
            z-index: -1;
        }
        
        .hardware-card h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: white;
        }
        
        .hardware-card p {
            color: var(--gray);
            font-size: 16px;
        }
        .hardware-grid2 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            position: relative;
            z-index: 2;
        }
        
        .hardware-grid2 .hardware-card {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 20px;
            padding: 40px 30px;
            text-align: center;
            transition: all 0.4s ease;
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(10px);
        }
        
        .hardware-grid2 .hardware-card:hover {
            transform: translateY(-10px);
            background: rgba(255, 255, 255, 0.08);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }
        
        .hardware-grid2 .hardware-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 25px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 36px;
            color: var(--accent);
            position: relative;
            background:0
        }
        
        .hardware-grid2 .hardware-icon:after {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background: rgba(240, 138, 93, 0.1);
            animation: pulse 2s infinite;
            z-index: -1;
        }
        
        .hardware-grid2 .hardware-card h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: white;
        }
        
        .hardware-grid2 .hardware-card p {
            color: var(--gray);
            font-size: 16px;
        }
        /* 案例展示 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .case-card {
            border-radius: 20px;
            overflow: hidden;
            position: relative;
            height: 400px;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
        }
        
        .case-image {
            width: 100%;
            height: 100%;
            background-size: cover;
            background-position: center;
            transition: all 0.5s ease;
        }
        
        .case-card:hover .case-image {
            transform: scale(1.1);
        }
        
        .case-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            padding: 30px;
            background: linear-gradient(to top, rgba(10, 26, 45, 0.9), transparent);
            transition: all 0.4s ease;
        }
        
        .case-card:hover .case-overlay {
            background: linear-gradient(to top, rgba(240, 138, 93, 0.9), transparent);
        }
        
        .case-title {
            font-size: 24px;
            margin-bottom: 10px;
            color: white;
        }
        
        .case-desc {
            color: var(--light);
            font-size: 16px;
        }
        
        /* 动画 */
        @keyframes pulse {
            0% {
                transform: scale(0.8);
                opacity: 0.7;
            }
            50% {
                transform: scale(1.1);
                opacity: 0.4;
            }
            100% {
                transform: scale(0.8);
                opacity: 0.7;
            }
        }
        
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        
        .fade-in.appear {
            opacity: 1;
            transform: translateY(0);
        }
        #consultBtn{
            position: fixed;
            bottom: calc((100% - 200px)/2);
            right: 30px;
            z-index: 999;
        }
        .floating-btn {
           
            width: 80px;
            height: 80px;
            background: #ffffff;
            color: white;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
            z-index: 1000;
            transition: all 0.3s;
        }
        .floating-btn img{
            width: 50px;
            height: 50px;
        }
        .floating-btn:hover {
            transform: scale(1.1);
            box-shadow: 0 6px 12px rgba(0,0,0,0.3);
        }
        
        .consultation-box {
            margin-top: 20px;
            width: 80px;
            background: white;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            flex-direction: column;
            overflow: hidden;
            z-index: 999;
        }
        
        .consultation-box.show {
            display: flex;
            animation: fadeIn 0.3s;
        }
        
        .consultation-item {
            padding: 12px 0;
            text-align: center;
            cursor: pointer;
            transition: background 0.2s;
            color: #000;
            font-size: 14px;
        }
        .consultation-item span{
            display: block;
        }
        .consultation-item img{
            width: 30px;
        }
        .consultation-item:hover {
            background: #f5f5f5;
        }
        
        .consultation-item i {
            margin-right: 10px;
            font-size: 20px;
        }
        
        .consultation-preview {
            position: absolute;
            bottom: 100%;
            left: 50%;
            transform: translateX(-50%);
            width: 150px;
            background: white;
            padding: 10px;
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
            display: none;
        }
        
        .consultation-preview img {
            width: 100%;
            border-radius: 4px;
        }
        #wechat{
            width: 200px;
            height: 250px;
            background-color: #ffffff;
            border-radius: 20px;
            padding: 20px 15px;
            text-align: center;
            position: fixed;
            bottom: calc((100% - 200px)/2);
            right: 130px;
            z-index: 999;
            display: none;
        }
        #wechat p{
            font-size: 16px;
            color: #000000;
        } 
         #wechat img{
            width: 150px;
         }
        #phone{
            width: 200px;
            height: 120px;
            background-color: #ffffff;
            border-radius: 20px;
            padding: 20px 0;
            text-align: center;
            position: fixed;
            bottom: calc((100% - 200px)/2);
            right: 130px;
            z-index: 999;
            display: none;
        }
        #phone p{
            font-size: 16px;
            color: #000000;
        } 

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        /* 响应式调整 */
        @media (max-width: 992px) {
            .hero-title {
                font-size: 42px;
            }
            
            /* .nav-links {
                gap: 20px;
            } */
        }
        
        @media (max-width: 768px) {
            .navbar {
                padding: 15px 0;
            }
            
            .nav-container {
                flex-wrap: wrap;
                display: flex;
    align-items: center;
    justify-content: flex-start;
            }
            
            /* .nav-links {
                width: 100%;
                justify-content: center;
                margin-top: 20px;
                gap: 15px;
            } */
            
            .hero-title {
                font-size: 36px;
            }
            
            .hero-subtitle {
                font-size: 18px;
            }
            
            .hero-buttons {
                flex-direction: column;
                gap: 15px;
            }
            
            .section-title h2 {
                font-size: 32px;
            }
        }
        /* 会员卡 */
        
        /* 头部样式 */
        .header {
            text-align: center;
            padding: 70px 20px 50px;
            position: relative;
            background: linear-gradient(to bottom, #1a1a2e, #0f3460);
            border-radius: 0 0 30px 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
            overflow: hidden;
            z-index: 1;
        }
        
        .header::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('https://images.unsplash.com/photo-1534438327276-14e5300c3a48?crop=entropy&cs=tinysrgb&fit=crop&fm=jpg&h=600&w=1200') center/cover no-repeat;
            opacity: 0.15;
            z-index: -1;
        }
        
        .header-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }
        .subtitle {
            font-size: 1.4rem;
            font-weight: 300;
            margin-bottom: 30px;
            color: #b0c4ff;
            line-height: 1.7;
        }
        
        .highlight {
            background: linear-gradient(90deg, #00c9ff, #92fe9d);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            font-weight: 700;
        }
        
        .cta-button {
            display: inline-block;
            background: linear-gradient(90deg, #00c9ff, #92fe9d);
            color: #0c1e3d;
            font-size: 1.2rem;
            font-weight: 600;
            padding: 15px 40px;
            border-radius: 50px;
            text-decoration: none;
            margin: 20px 10px;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0,201,255,0.4);
        }
        
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0,201,255,0.6);
        }
        
        /* 功能导航 */
        .features-nav {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
            margin: 40px 0 60px;
        }
        
        .feature-nav-item {
            background: rgba(0, 201, 255, 0.1);
            border: 1px solid rgba(0, 201, 255, 0.3);
            padding: 12px 25px;
            border-radius: 30px;
            cursor: pointer;
            transition: all 0.3s ease;
            color: #b0c4ff;
            font-weight: 500;
        }
        
        .feature-nav-item:hover, .feature-nav-item.active {
            background: linear-gradient(90deg, #00c9ff, #92fe9d);
            color: #0c1e3d;
            box-shadow: 0 5px 15px rgba(0,201,255,0.4);
        }
        
        /* 会员卡类型展示 */
        .card-types-section {
            padding: 60px 0;
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .section-title {
            font-size: 2.8rem;
            margin-bottom: 15px;
            color: white;
            position: relative;
            display: inline-block;
        }
        .section-subtitle {
            font-size: 1.2rem;
            color: #8a9bcf;
            max-width: 700px;
            margin: 0 auto;
        }
        
        /* 会员卡网格 */
        /* 会员卡网格 */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 35px;
            margin-top: 40px;
        }
        
        .cards-grid .card-item {
            background: linear-gradient(145deg, #1e1e2e, #252540);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
            transition: all 0.4s ease;
            border: 1px solid #2d2d4a;
            display: flex;
            flex-direction: column;
            height: 400px;
        }
        
        .cards-grid .card-item:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0,201,255,0.25);
            border-color: #00c9ff;
        }
        
        .cards-grid .card-header {
            padding: 25px 25px 15px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid #2d2d4a;
        }
        
        .cards-grid .card-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #00c9ff, #92fe9d);
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0c1e3d;
            font-size: 24px;
            margin-right: 20px;
            flex-shrink: 0;
        }
        
        .cards-grid .card-title {
            font-size: 1.8rem;
            color: white;
        }
        
        .cards-grid .card-body1 {
            padding: 25px;
            flex-grow: 1;
        }
        
        .cards-grid .card-features {
            list-style: none;
            margin-bottom: 20px;
        }
        
        .cards-grid .feature-item1 {
            padding: 10px 0;
            border-bottom: 1px dashed #2d2d4a;
            display: flex;
            align-items: center;
        }
        
        .cards-grid .feature-item:last-child {
            border-bottom: none;
        }
        
        .cards-grid .feature-icon2 {
            color: #00c9ff;
            margin-right: 15px;
            min-width: 20px;
            font-size: 18px;
        }
        
        .cards-grid .feature-text {
            color: #b0c4ff;
            font-size: 0.95rem;
            line-height: 1.6;
        }
        
        /* 高级设置区域 */
        .advanced-settings {
            background: linear-gradient(145deg, #1a1a2e, #16213e);
            border-radius: 30px;
            padding: 60px;
            margin: 80px 0;
            box-shadow: 0 10px 40px rgba(0,0,0,0.3);
            border: 1px solid #2d2d4a;
        }
        
        .settings-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 40px;
            margin-top: 40px;
        }
        
        .setting-card {
            background: linear-gradient(145deg, #1e1e2e, #252540);
            border-radius: 20px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
            border: 1px solid #2d2d4a;
        }
        
        .setting-header {
            display: flex;
            align-items: center;
            margin-bottom: 25px;
        }
        
        .setting-icon {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #00c9ff, #92fe9d);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0c1e3d;
            font-size: 20px;
            margin-right: 15px;
        }
        
        .setting-title {
            font-size: 1.6rem;
            color: white;
        }
        
        .setting-content {
            color: #b0c4ff;
            line-height: 1.7;
        }
        
        .setting-options {
            margin-top: 20px;
            padding: 15px;
            background: rgba(0, 201, 255, 0.05);
            border-radius: 15px;
            border-left: 3px solid #00c9ff;
        }
        
        .option-item {
            margin: 15px 0;
            display: flex;
            align-items: center;
        }
        
        .option-item input[type="checkbox"] {
            margin-right: 10px;
            width: 18px;
            height: 18px;
        }
        
        .option-item label {
            color: #b0c4ff;
            cursor: pointer;
        }
        
        .form-group {
            margin: 15px 0;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #8a9bcf;
        }
        
        .form-group input, .form-group select {
            width: 100%;
            padding: 12px 15px;
            background: rgba(0, 0, 0, 0.2);
            border: 1px solid #2d2d4a;
            border-radius: 8px;
            color: white;
            font-size: 1rem;
        }
        
        .form-group input:focus, .form-group select:focus {
            outline: none;
            border-color: #00c9ff;
        }
        
        .tier-pricing {
            display: flex;
            gap: 10px;
            margin: 10px 0;
        }
        
        .tier-item {
            flex: 1;
            background: rgba(0, 0, 0, 0.2);
            border-radius: 8px;
            padding: 10px;
            text-align: center;
        }
        
        .tier-value {
            font-weight: 700;
            color: #92fe9d;
        }
        
        /* 会员导入区域 */
        .import-section {
            background: linear-gradient(145deg, #1a1a2e, #16213e);
            border-radius: 30px;
            padding: 60px;
            margin: 80px 0;
            box-shadow: 0 10px 40px rgba(0,0,0,0.3);
            border: 1px solid #2d2d4a;
            text-align: center;
        }
        
        .import-content {
            max-width: 700px;
            margin: 0 auto;
        }
        
        .import-steps {
            display: flex;
            justify-content: space-between;
            margin: 40px 0;
            position: relative;
        }
        
        .import-steps::before {
            content: "";
            position: absolute;
            top: 25px;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(to right, #00c9ff, #92fe9d);
            z-index: 1;
        }
        
        .step {
            position: relative;
            z-index: 2;
            text-align: center;
            flex: 1;
        }
        
        .step-icon {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #00c9ff, #92fe9d);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0c1e3d;
            font-size: 20px;
            margin: 0 auto 15px;
        }
        
        .step-text {
            color: #b0c4ff;
        }
        
        .upload-area {
            border: 2px dashed #00c9ff;
            border-radius: 20px;
            padding: 40px;
            margin: 30px 0;
            background: rgba(0, 201, 255, 0.05);
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .upload-area:hover {
            background: rgba(0, 201, 255, 0.1);
        }
        
        .upload-icon {
            font-size: 3rem;
            color: #00c9ff;
            margin-bottom: 20px;
        }
        
        .upload-text {
            color: #b0c4ff;
            margin-bottom: 15px;
        }
        
        .file-types {
            color: #8a9bcf;
            font-size: 0.9rem;
        }       



        
        /* 页脚 */
        footer {
            text-align: center;
            padding: 60px 20px 40px;
            color: #8a9bcf;
            font-size: 1rem;
            margin-top: 20px;
        }


        /* 课程私教 */
        /* 头部样式 */
        .header2 {
            text-align: center;
            padding: 80px 20px 50px;
            position: relative;
            background: linear-gradient(to bottom, #1a1a2e, #0f3460);
            border-radius: 0 0 30px 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
            overflow: hidden;
            z-index: 1;
        }
        
        .header2::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('https://images.unsplash.com/photo-1534438327276-14e5300c3a48?crop=entropy&cs=tinysrgb&fit=crop&fm=jpg&h=600&w=1200') center/cover no-repeat;
            opacity: 0.15;
            z-index: -1;
        }
        
        .header2 .header-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }

        /* 功能展示区域 */
        .features-section {
            padding: 60px 0;
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .section-title {
            font-size: 2.8rem;
            margin-bottom: 15px;
            color: white;
            position: relative;
            display: inline-block;
        }
        
        
        .section-subtitle {
            font-size: 1.2rem;
            color: #8a9bcf;
            max-width: 700px;
            margin: 0 auto;
        }
        
        /* 功能卡片网格 */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(450px, 1fr));
            gap: 35px;
            margin-top: 40px;
        }
        
        .feature-card {
            background: linear-gradient(145deg, #1e1e2e, #252540);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
            transition: all 0.4s ease;
            border: 1px solid #2d2d4a;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0,201,255,0.25);
            border-color: #00c9ff;
        }
        
        .feature-header {
            padding: 25px 25px 15px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid #2d2d4a;
        }
        
        .feature-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #00c9ff, #92fe9d);
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0c1e3d;
            font-size: 24px;
            margin-right: 20px;
            flex-shrink: 0;
        }
        
        .feature-title {
            font-size: 1.8rem;
            color: white;
        }
        
        .feature-body {
            padding: 25px;
            flex-grow: 1;
        }
        
        .feature-list {
            list-style: none;
        }
        
        .feature-item {
            padding: 15px 0;
            border-bottom: 1px dashed #2d2d4a;
            display: flex;
            align-items: flex-start;
        }
        
        .feature-item:last-child {
            border-bottom: none;
        }
        
        .item-icon {
            color: #00c9ff;
            margin-right: 15px;
            min-width: 20px;
            font-size: 18px;
            margin-top: 3px;
        }
        
        .item-content {
            flex-grow: 1;
        }
        
        .item-title {
            font-size: 1.2rem;
            color: white;
            margin-bottom: 5px;
        }
        
        .item-description {
            color: #b0c4ff !important;
            font-size: 0.95rem;
            line-height: 1.6;
        }
        
        .item-highlight {
            display: inline-block;
            background: rgba(0, 201, 255, 0.1);
            padding: 3px 10px;
            border-radius: 5px;
            color: #92fe9d;
            margin-top: 5px;
            font-size: 0.9rem;
        }
        
        /* 教练展示区域 */
        .coach-showcase {
            background: linear-gradient(145deg, #1a1a2e, #16213e);
            border-radius: 30px;
            padding: 60px 30px;
            margin: 80px 0;
            box-shadow: 0 10px 40px rgba(0,0,0,0.3);
            border: 1px solid #2d2d4a;
        }
        
        .coaches-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        
        .coach-card {
            background: linear-gradient(145deg, #1e1e2e, #252540);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
            transition: all 0.4s ease;
            border: 1px solid #2d2d4a;
        }
        
        .coach-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0,201,255,0.25);
            border-color: #00c9ff;
        }
        
        .coach-image {
            height: 280px;
            background: linear-gradient(45deg, #1a1a2e, #16213e);
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .coach-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .coach-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            background: linear-gradient(90deg, #00c9ff, #92fe9d);
            color: #0c1e3d;
            padding: 5px 15px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.9rem;
        }
        
        .coach-info {
            padding: 25px;
        }
        
        .coach-name {
            font-size: 1.5rem;
            color: white;
            margin-bottom: 5px;
        }
        
        .coach-title {
            color: #00c9ff;
            margin-bottom: 15px;
            font-size: 1.1rem;
        }
        
        .coach-stats {
            display: flex;
            justify-content: space-between;
            margin-top: 20px;
            color: #8a9bcf;
        }
        
        .stat {
            text-align: center;
        }
        
        .stat-value {
            font-size: 1.4rem;
            color: #92fe9d;
            font-weight: 700;
        }
        
        .stat-label {
            font-size: 0.9rem;
        }
        
        /* 手机端预览 */
        .mobile-preview {
            background: linear-gradient(145deg, #1a1a2e, #16213e);
            border-radius: 30px;
            padding: 60px 30px;
            margin: 80px 0;
            box-shadow: 0 10px 40px rgba(0,0,0,0.3);
            border: 1px solid #2d2d4a;
            display: flex;
            align-items: center;
            gap: 50px;
        }
        
        .preview-content {
            flex: 1;
        }
        
        .preview-phone {
            flex-shrink: 0;
            position: relative;
            width: 330px;
            height: 690px;
        }
        
        .phone-frame1 {
            width: 100%;
            height: 100%;
            background: #0a0a14;
            border-radius: 40px;
            padding: 15px;
            box-shadow: 0 20px 50px rgba(0,0,0,0.7);
            border: 2px solid #3a3a5a;
        }
        .phone-frame1 img{
            width: 100%;
            height: 100%;
            border-radius: 10px;
        }
        .phone-notch {
            position: absolute;
            top: 15px;
            left: 50%;
            transform: translateX(-50%);
            width: 130px;
            height: 25px;
            background: #0a0a14;
            border-radius: 0 0 20px 20px;
            z-index: 2;
        }
        
        .phone-screen {
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, #1a1a2e, #16213e);
            border-radius: 25px;
            overflow: hidden;
            position: relative;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: #8a9bcf;
            padding: 20px;
            text-align: center;
        }
        
        .phone-screen img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 20px;
        }
        
        .placeholder-image {
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, #1a1a2e, #16213e);
            border-radius: 20px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }
        
        .placeholder-image i {
            font-size: 3rem;
            margin-bottom: 20px;
            color: #00c9ff;
        }

        /* 分销裂变 */
        /* 流程卡片样式 */
        .process-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px;
            margin-top: 40px;
        }
        
        .process-card {
            background: linear-gradient(145deg, #1e1e2e, #252540);
            border-radius: 20px;
            overflow: hidden;
            width: 100%;
            max-width: 500px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
            transition: transform 0.4s ease;
            border: 1px solid #2d2d4a;
        }
        
        .process-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0,201,255,0.2);
        }
        
        /* 手机截图样式 */
        .phone-screenshot {
            position: relative;
            height: 400px;
            padding: 30px 20px;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .phone-frame {
            width: 220px;
            height: 440px;
            background: #0a0a14;
            border-radius: 30px;
            padding: 15px;
            box-shadow: 0 20px 50px rgba(0,0,0,0.7);
            position: relative;
            border: 2px solid #3a3a5a;
        }
        
        .phone-notch {
            position: absolute;
            top: 15px;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
            height: 20px;
            background: #0a0a14;
            border-radius: 0 0 15px 15px;
            z-index: 2;
        }
        
        .phone-screen {
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, #1a1a2e, #16213e);
            border-radius: 20px;
            overflow: hidden;
            position: relative;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: #8a9bcf;
            padding: 20px;
            text-align: center;
        }
        
        .phone-screen::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('/img/img1.png') no-repeat;
            background-size: 20px 20px;
            opacity: 0.3;
        }
        
        .phone-content {
            position: relative;
            z-index: 2;
        }
        
        .phone-content i {
            font-size: 3rem;
            margin-bottom: 20px;
            color: #00c9ff;
        }
        
        .card-content {
            padding: 25px;
            background: rgba(30, 30, 46, 0.7);
        }
        
        .card-step {
            display: inline-block;
            background: linear-gradient(90deg, #00c9ff, #92fe9d);
            color: #0c1e3d;
            font-weight: 700;
            padding: 5px 15px;
            border-radius: 20px;
            margin-bottom: 15px;
            font-size: 0.9rem;
        }
        
        .card-title {
            font-size: 1.6rem;
            margin-bottom: 15px;
            color: white;
        }
        
        .card-description {
            color: #b0c4ff;
            margin-bottom: 20px;
            line-height: 1.7;
        }
        
        .card-highlight {
            background: rgba(0, 201, 255, 0.1);
            padding: 15px;
            border-radius: 10px;
            border-left: 4px solid #00c9ff;
            margin-top: 15px;
            color: #92fe9d;
        }
        
        /* 收益部分样式 */
        .benefits-section {
            background: linear-gradient(145deg, #1a1a2e, #16213e);
            border-radius: 30px;
            padding: 60px 20px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.3);
            margin: 40px 0;
            border: 1px solid #2d2d4a;
        }
        
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        
        .benefit-card {
            background: linear-gradient(145deg, #1e1e2e, #252540);
            border-radius: 15px;
            padding: 30px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
            border: 1px solid #2d2d4a;
            transition: all 0.3s ease;
        }
        
        .benefit-card:hover {
            transform: translateY(-5px);
            border-color: #00c9ff;
            box-shadow: 0 8px 25px rgba(0,201,255,0.2);
        }
        
        .benefit-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #00c9ff, #92fe9d);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: #0c1e3d;
            font-size: 30px;
        }
        
        .benefit-title {
            font-size: 1.4rem;
            color: white;
            margin-bottom: 15px;
        }
        
        .benefit-description {
            color: #b0c4ff;
        }
        
        /* 佣金结构 */
        .commission-section {
            background: linear-gradient(135deg, #0f3460, #1a1a2e);
            border-radius: 30px;
            padding: 60px 30px;
            color: white;
            margin: 60px 0;
            box-shadow: 0 10px 40px rgba(0,0,0,0.3);
            border: 1px solid #2d2d4a;
        }
        
        .commission-structure {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 30px;
            margin-top: 40px;
        }
        
        .tier {
            background: rgba(255,255,255,0.05);
            border-radius: 20px;
            padding: 30px;
            text-align: center;
            flex: 1;
            min-width: 250px;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(0, 201, 255, 0.2);
        }
        
        .tier-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: #00c9ff;
        }
        
        .tier-title {
            font-size: 1.8rem;
            margin-bottom: 15px;
            color: #92fe9d;
        }
        
        .tier-amount {
            font-size: 2.5rem;
            font-weight: 700;
            background: linear-gradient(90deg, #00c9ff, #92fe9d);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            margin: 20px 0;
        }
        
        .tier-description {
            color: #b0c4ff;
            line-height: 1.7;
        }
        
        /* 数据统计 */
        .stats-section {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 20px;
            margin: 40px 0;
        }
        
        .stat-card {
            background: linear-gradient(145deg, #1e1e2e, #252540);
            border-radius: 15px;
            padding: 25px;
            text-align: center;
            min-width: 200px;
            flex: 1;
            border: 1px solid #2d2d4a;
        }
        
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            background: linear-gradient(90deg, #00c9ff, #92fe9d);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            margin: 10px 0;
        }
        
        .stat-label {
            color: #b0c4ff;
            font-size: 1.1rem;
        }
        

        /* 设备管理 */
        /* 硬件分类导航 */
        .hardware-nav {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
            margin: 30px 0 50px;
        }
        
        .nav-item {
            background: rgba(0, 201, 255, 0.1);
            border: 1px solid rgba(0, 201, 255, 0.3);
            padding: 12px 25px;
            border-radius: 30px;
            cursor: pointer;
            transition: all 0.3s ease;
            color: #b0c4ff;
            font-weight: 500;
        }
        
        .nav-item:hover, .nav-item.active {
            background: linear-gradient(90deg, #00c9ff, #92fe9d);
            color: #0c1e3d;
            box-shadow: 0 5px 15px rgba(0,201,255,0.4);
        }
        
        /* 硬件网格布局 */
        .hardware-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
            gap: 30px;
            margin-top: 30px;
        }
        
        .hardware-card1 {
            background: linear-gradient(145deg, #1e1e2e, #252540);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
            transition: transform 0.4s ease;
            border: 1px solid #2d2d4a;
            display: flex;
            flex-direction: column;
        }
        
        .hardware-card1:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0,201,255,0.2);
        }
        
        .card-header {
            padding: 25px 25px 15px;
            border-bottom: 1px solid #2d2d4a;
            display: flex;
            align-items: center;
        }
        
        .hardware-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #00c9ff, #92fe9d);
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0c1e3d;
            font-size: 24px;
            margin-right: 20px;
            flex-shrink: 0;
        }
        
        .hardware-title {
            font-size: 1.8rem;
            color: white;
        }
        
        .card-body {
            padding: 25px;
            display: flex;
            flex-grow: 1;
        }
        
        .hardware-image {
            width: 200px;
            height: 200px;
            background: #0a0a14;
            border-radius: 15px;
            border: 1px solid #3a3a5a;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 25px;
            flex-shrink: 0;
            overflow: hidden;
        }
        
        .hardware-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .hardware-content {
            flex-grow: 1;
        }
        
        .feature-list {
            list-style: none;
        }
        
        .feature-item {
            padding: 12px 0;
            border-bottom: 1px dashed #2d2d4a;
            display: flex;
        }
        
        .feature-item:last-child {
            border-bottom: none;
        }
        
        .feature-icon {
            color: #00c9ff;
            margin-right: 10px;
            min-width: 20px;
        }
        
        .feature-text {
            color: #b0c4ff;
        }
        
        .feature-highlight {
            display: inline-block;
            background: rgba(0, 201, 255, 0.1);
            padding: 2px 8px;
            border-radius: 5px;
            color: #92fe9d;
            margin-left: 5px;
            font-size: 0.9rem;
        }


        /* 案例展示 */
        /* 筛选导航 */
        .filter-nav {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
            margin: 30px 0 50px;
        }
        
        .filter-item {
            background: rgba(0, 201, 255, 0.1);
            border: 1px solid rgba(0, 201, 255, 0.3);
            padding: 12px 25px;
            border-radius: 30px;
            cursor: pointer;
            transition: all 0.3s ease;
            color: #b0c4ff;
            font-weight: 500;
        }
        
        .filter-item:hover, .filter-item.active {
            background: linear-gradient(90deg, #00c9ff, #92fe9d);
            color: #0c1e3d;
            box-shadow: 0 5px 15px rgba(0,201,255,0.4);
        }
        
        /* 案例展示区域 */
        .showcase-section {
            padding: 60px 0;
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .section-title {
                font-size: 2.8rem;
    margin: 0 auto;
    margin-bottom: 15px;
    color: white;
    position: relative;
    display: block;
        }
        
        
        .section-subtitle {
            font-size: 1.2rem;
            color: #8a9bcf;
            max-width: 700px;
            margin: 0 auto;
        }
        
        /* 案例网格布局 */
        .showcase-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 35px;
            margin-top: 40px;
        }
        
        .case-card {
            background: linear-gradient(145deg, #1e1e2e, #252540);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
            transition: all 0.4s ease;
            border: 1px solid #2d2d4a;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        
        .case-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0,201,255,0.25);
            border-color: #00c9ff;
        }
        
        .case-header {
            padding: 25px 25px 15px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid #2d2d4a;
        }
        
        .app-icon {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #00c9ff, #92fe9d);
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0c1e3d;
            font-size: 24px;
            margin-right: 15px;
            flex-shrink: 0;
        }
        
        .app-info {
            flex-grow: 1;
        }
        
        .app-title {
            font-size: 1.4rem;
            color: white;
            margin-bottom: 5px;
        }
        
        .app-category {
            color: #8a9bcf;
            font-size: 0.9rem;
        }
        
        .case-image {
            position: relative;
            height: 500px;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }
        
        .phone-mockup {
            position: relative;
            width: 250px;
            height: 500px;
            background: #0a0a14;
            border-radius: 40px;
            padding: 15px;
            box-shadow: 0 20px 50px rgba(0,0,0,0.7);
            border: 2px solid #3a3a5a;
        }
        .phone-mockup img{
            width: 100%;
            height: 100%;
            border-radius: 10px;
        }
        .phone-notch {
            position: absolute;
            top: 15px;
            left: 50%;
            transform: translateX(-50%);
            width: 120px;
            height: 25px;
            background: #0a0a14;
            border-radius: 0 0 20px 20px;
            z-index: 2;
        }
        
        .phone-screen {
            width: 100%;
            height: 100%;
            background: #1a1a2e;
            border-radius: 25px;
            overflow: hidden;
            position: relative;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: #8a9bcf;
            padding: 20px;
            text-align: center;
        }
        
        .phone-screen img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 20px;
        }
        
        .placeholder-image {
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, #1a1a2e, #16213e);
            border-radius: 20px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }
        
        .placeholder-image i {
            font-size: 3rem;
            margin-bottom: 20px;
            color: #00c9ff;
        }
        
        .case-footer {
            padding: 20px 25px;
            background: rgba(30, 30, 46, 0.7);
            border-top: 1px solid #2d2d4a;
            flex-grow: 1;
        }
        
        .case-description {
            color: #b0c4ff;
            margin-bottom: 20px;
            line-height: 1.7;
        }
        
        .case-stats {
            display: flex;
            justify-content: space-between;
            color: #8a9bcf;
            font-size: 0.9rem;
        }
        
        .stat-item {
            display: flex;
            align-items: center;
        }
        
        .stat-item i {
            margin-right: 5px;
            color: #00c9ff;
        }
        /* .fa-sensor:before {
            content: "\f0eb";
        } */
        /* 页脚 */
        footer {
            text-align: center;
            padding: 60px 20px 40px;
            color: #8a9bcf;
            font-size: 1rem;
            margin-top: 20px;
        }
        
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin: 20px 0;
            flex-wrap: wrap;
        }
        
        .footer-links a {
            color: #00c9ff;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .footer-links a:hover {
            color: #92fe9d;
            text-decoration: underline;
        }
        
        .upload-section {
            background: rgba(0, 201, 255, 0.05);
            border: 1px dashed #00c9ff;
            border-radius: 20px;
            padding: 40px;
            text-align: center;
            margin: 50px auto;
            max-width: 800px;
        }
        
        .upload-btn {
            display: inline-block;
            background: linear-gradient(90deg, #00c9ff, #92fe9d);
            color: #0c1e3d;
            font-size: 1.2rem;
            font-weight: 600;
            padding: 15px 40px;
            border-radius: 50px;
            text-decoration: none;
            margin: 20px 0;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0,201,255,0.4);
            border: none;
            cursor: pointer;
        }
        
        .upload-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0,201,255,0.6);
        }
        
        .upload-text {
            color: #b0c4ff;
            margin-top: 15px;
            font-size: 0.9rem;
        }
        

/* 视频展示区域 */
        .video-section {
            padding-top: 80px;
            position: relative;
        }
        
        .video-container {
            max-width: 1000px;
            margin: 0 auto;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
            position: relative;
            background: #000;
        }
        
        .video-wrapper {
            position: relative;
            padding-top: 56.25%; /* 16:9 Aspect Ratio */
        }
        
        .video-placeholder {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #1a1a2e, #0f3460);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: white;
            cursor: pointer;
        }
        
        .play-button {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #00c9ff, #92fe9d);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            transition: all 0.3s ease;
        }
        
        .play-button i {
            font-size: 36px;
            color: #0c1e3d;
            margin-left: 5px;
        }
        
        .play-button:hover {
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0, 201, 255, 0.6);
        }
        
        .video-info {
            text-align: center;
            padding: 30px;
        }
        
        .video-title {
            font-size: 2.2rem;
            color: white;
            margin-bottom: 15px;
        }
        
        .video-description {
            color: #b0c4ff;
            max-width: 700px;
            margin: 0 auto;
            font-size: 1.1rem;
            line-height: 1.7;
        }
        
        .video-meta {
            display: flex;
            justify-content: center;
            gap: 30px;
            margin-top: 25px;
            color: #8a9bcf;
        }
        
        .meta-item {
            display: flex;
            align-items: center;
        }
        
        .meta-item i {
            margin-right: 10px;
            color: #00c9ff;
        }
        
        /* 功能卡片网格 */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(450px, 1fr));
            gap: 35px;
            margin-top: 40px;
        }































        /* 响应式设计 */
        @media (max-width: 1200px) {
            .cards-grid {
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            }
        }
        
        @media (max-width: 992px) {
            .settings-grid {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 768px) {
            h1 {
                font-size: 2.5rem;
            }
            
            .subtitle {
                font-size: 1.2rem;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .advanced-settings, .import-section {
                padding: 40px 20px;
            }
            
            .import-steps {
                flex-direction: column;
                gap: 40px;
            }
            
            .import-steps::before {
                display: none;
            }
        }
        @media (max-width: 576px) {
            .logo-text {
                font-size: 20px;
            }
            
            .hero-title {
                font-size: 32px;
            }
            
            .feature-card, .hardware-card {
                padding: 30px 20px;
            }
        }
        /* 响应式设计 */
        @media (max-width: 1200px) {
            .showcase-grid {
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            }
        }
        
        @media (max-width: 768px) {
            h1 {
                font-size: 2.5rem;
            }
            
            .subtitle {
                font-size: 1.2rem;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .phone-mockup {
                width: 220px;
                height: 440px;
            }
            
            .case-image {
                height: 440px;
            }
        }
        
        @media (max-width: 480px) {
            .showcase-grid {
                grid-template-columns: 1fr;
            }
            
            .phone-mockup {
                width: 200px;
                height: 400px;
            }
            
            .case-image {
                height: 400px;
            }
        }
        /* 响应式设计 */
        @media (max-width: 768px) {
            h1 {
                font-size: 2.5rem;
            }
            
            .subtitle {
                font-size: 1.2rem;
            }
            
            .hardware-grid {
                grid-template-columns: 1fr;
            }
            
            .hardware-card {
                flex-direction: column;
            }
            
            .card-body {
                flex-direction: column;
            }
            
            .hardware-image {
                width: 100%;
                margin-right: 0;
                margin-bottom: 20px;
            }
        }
        /* 响应式设计 */
        @media (max-width: 768px) {
            h1 {
                font-size: 2.5rem;
            }
            
            .subtitle {
                font-size: 1.2rem;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .process-card {
                max-width: 100%;
            }
            
            .commission-structure {
                flex-direction: column;
            }
            
            .phone-frame {
                width: 180px;
                height: 360px;
            }
        }
        /* 响应式设计 */
        @media (max-width: 1200px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
            
            .mobile-preview {
                flex-direction: column;
            }
            
            .preview-phone {
                margin-top: 40px;
            }
        }
        
        @media (max-width: 768px) {
            h1 {
                font-size: 2.5rem;
            }
            
            .subtitle {
                font-size: 1.2rem;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .feature-card, .coach-card {
                max-width: 100%;
            }
            
            .preview-phone {
                width: 220px;
                height: 440px;
            }
        }
        
        @media (max-width: 480px) {
            .features-nav, .footer-links {
                flex-direction: column;
                align-items: center;
            }
            
            .feature-nav-item {
                width: 80%;
                text-align: center;
            }
        }
        /* 响应式设计 */
        @media (max-width: 1200px) {
            .cards-grid {
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            }
        }
        
        @media (max-width: 992px) {
            .settings-grid {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 768px) {
            h1 {
                font-size: 2.5rem;
            }
            
            .subtitle {
                font-size: 1.2rem;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .advanced-settings, .import-section {
                padding: 40px 20px;
            }
            
            .import-steps {
                flex-direction: column;
                gap: 40px;
            }
            
            .import-steps::before {
                display: none;
            }
            .cta-button1{
                position: absolute;
                right: 10px;
                top: 15px;
            }
        }