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

        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background-color: #ffffff;
            color: #1A2C3E;
            line-height: 1.5;
            scroll-behavior: smooth;
        }

        :root {
            --primary-dark: #2253d1;
            --primary: #1e40af;
            --primary-light: #3b82f6;
            --bg-light: #F5F9FE;
            --text-dark: #102B3F;
            --text-gray: #4A627A;
            --border-light: #E2EDF5;
            --yellow-star: #fbbf24;
        }
    
        .container {
            width: 100%;
            max-width: 100%;
            margin: 0 auto;
            padding: 0 24px;
        }
 .container1 {
            width:100%; max-width:1200px; margin:0 auto; padding:0 24px;
        }
		
        @media (min-width: 1600px) {
            .container {
                max-width: 1600px;
                padding: 0 32px;
            }
        }

        /* 导航栏 - 靠右布局 */
        .navbar {
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 12px rgba(0,0,0,0.03);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 12px 0;
            border-bottom: 1px solid rgba(28,126,160,0.15);
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .logo1 {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            flex-shrink: 0;
        }
		
	
.logo {
    display: flex;
    flex-direction: row;      /* 改为水平布局 */
    align-items: center;      /* 垂直居中 */
    gap: 15px;                /* 图片与文字间距 */
}

.logo img {
    flex-shrink: 0;           /* 防止图片被压缩 */
    /* 移除原 margin-bottom */
}

.logo-text {
    display: flex;
    flex-direction: column;   /* 右侧文字上下排列 */
    justify-content: center;
}

.logo-text .title {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    margin-bottom: 5px;       /* 与副标题间距 */
    line-height: 1.2;
}

.logo-text .subtitle {
    font-size: 1rem;
    color: var(--primary-dark);
    font-weight: 500;
    letter-spacing: 0.5px;
    margin: 0;
}

        .nav-right {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
        }

        .nav-links {
            display: flex;
            gap: 12px;
            align-items: center;
            list-style: none;
        }

        .nav-links li {
            position: relative;
        }

        .nav-links a {
            text-decoration: none;
            font-weight: 500;
            color: var(--text-dark);
            transition: all 0.25s ease;
            font-size: 1rem;
            padding: 8px 18px;
            display: inline-block;
            border-radius: 40px;
        }

        /* 鼠标悬停背景变色 */
        .nav-links a:hover {
            background:#1e40af;
            color: white;
        }

        /* 下拉菜单 */
        .dropdown-menu {
            position: absolute;
            top: 48px;
            left: 0;
            background: white;
            min-width: 200px;
            border-radius: 20px;
            box-shadow: 0 12px 28px rgba(0,0,0,0.1);
            padding: 8px 0;
            opacity: 0;
            visibility: hidden;
            transition: all 0.25s ease;
            z-index: 100;
            border: 1px solid var(--border-light);
        }

        .dropdown:hover .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(6px);
        }

        .dropdown-menu a {
            display: block;
            padding: 10px 20px;
            color: var(--text-dark);
            font-weight: 500;
            transition: background 0.2s;
            white-space: nowrap;
        }
.dropdown-menu hh{
font-weight: 600;
color: red;
}
        .dropdown-menu a:hover {
            background: #1e40af;
            color: white;
        }

        .btn-primary {
            background: var(--primary);
            color: white;
            border: none;
            padding: 10px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(28,126,160,0.3);
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            padding: 8px 24px;
            border-radius: 40px;
            font-weight: 600;
            transition: all 0.25s;
            cursor: pointer;
        }

        .btn-outline:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-2px);
        }

        .btn-download-nav {
            background: var(--primary);
            color: white;
            border: none;
            padding: 8px 22px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
			text-decoration:none;
        }
        .btn-download-nav:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 14px rgba(0,0,0,0.15);
        }

        /* 轮播区域 */
        .carousel-section {
            position: relative;
            background: #071e2c;
            overflow: hidden;
        }

        .carousel-container {
            position: relative;
            width: 100%;
            height: 560px;
        }

        .carousel-slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            transition: opacity 0.8s ease;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: white;
        }

        .carousel-slide.active {
            opacity: 1;
            z-index: 1;
        }

        .slide-content {
            max-width: 800px;
            padding: 0 24px;
            background: rgba(0,0,0,0.45);
            backdrop-filter: blur(4px);
            border-radius: 32px;
            padding: 40px 48px;
        }

        .slide-content h2 {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 20px;
        }

        .slide-content p {
            font-size: 1.1rem;
            margin-bottom: 32px;
            opacity: 0.9;
        }

        .carousel-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(0,0,0,0.5);
            color: white;
            border: none;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            cursor: pointer;
            z-index: 10;
            font-size: 1.4rem;
            transition: 0.2s;
        }

        .carousel-btn:hover {
            background: var(--primary);
        }

        .prev { left: 24px; }
        .next { right: 24px; }

        .dots {
            position: absolute;
            bottom: 24px;
            left: 0;
            right: 0;
            display: flex;
            justify-content: center;
            gap: 12px;
            z-index: 10;
        }

        .dot {
            width: 12px;
            height: 12px;
            background: rgba(255,255,255,0.5);
            border-radius: 50%;
            cursor: pointer;
            transition: 0.2s;
        }

        .dot.active {
            background: var(--primary-light);
            width: 28px;
            border-radius: 20px;
        }

        /* 通用章节 */
        section { padding: 80px 0; }
        /* 单独减小核心优势区域顶部间距，使与banner衔接更紧凑 */
        #advantages {
            padding-top: 20px;
			padding-bottom: 25px;
        }
         #products {
            padding-top: 20px;
			padding-bottom: 25px;
        }
		#scenes {
            padding-top: 20px;
			padding-bottom: 25px;
        }
		#scenes1 {
            padding-top: 20px;
			padding-bottom: 25px;
        }
		#testimonials {
            padding-top: 20px;
        }
		.section-title {
            font-size: 2.3rem;
            font-weight: 700;
            text-align: center;
            
            margin-bottom: 16px;
        }
		.section-title span{
            
            color: var(--primary-dark);
      
        }
        .section-sub {
            text-align: center;
            color: var(--text-gray);
            max-width: 800px;
            margin: 0 auto 56px auto;
            font-size: 1.2rem;
        }

        /* 优势卡片网格 */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 32px;
            width: 100%;
        }
        .advantage-card {
            background: white;
            border-radius: 28px;
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all 0.3s ease;
        }
		.advantage-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .advantage-card:hover {
            transform: translateY(-8px);
            border-color: var(--primary-light);
            box-shadow: 0 20px 30px -12px rgba(28,126,160,0.2);
        }
        .advantage-icon { font-size: 2.8rem; margin-bottom: 24px;}

        /* 产品网格 */
        .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 36px;
            width: 100%;
			
        }
        .product-card {
            background: #FFFFFF;
            border-radius: 32px;
            overflow: hidden;
            box-shadow: 0 12px 24px -12px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
            border: 1px solid var(--border-light);
        }
        .product-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 24px 36px -12px rgba(28,126,160,0.25);
            border-color: var(--primary-light);
        }
        .product-img {
            background: linear-gradient(145deg, #EAF4FA, #DEEAF2);
            height: 200px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3.5rem;
        }
        .product-img img {
            width: 100%;
            height: 200px;
            display: block;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .product-info { padding: 24px; }
        .product-info h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }
        .product-info p {
            color: var(--text-gray);
            margin-bottom: 20px;
            font-size: 0.95rem;
        }
        .product-tag {
            font-size: 0.8rem;
            font-weight: 600;
            background: #E9F2F8;
            display: inline-block;
            padding: 5px 14px;
            border-radius: 30px;
            color: var(--primary-dark);
        }

        /* 应用场景网格 - 每行三个，大图显示 */
        .scenes-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            text-align: center;
            width: 100%;
        }
        .scene-item {
            background: white;
            border-radius: 32px;
            padding: 0 0 32px 0;
            transition: all 0.25s;
            border: 1px solid var(--border-light);
            overflow: hidden;
        }
        .scene-item:hover {
            transform: translateY(-6px);
            border-color: var(--primary-light);
            box-shadow: 0 12px 20px rgba(0,0,0,0.05);
        }
        .scene-icon {
            width: 100%;
            background: #f0f4f9;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            border-bottom: 1px solid var(--border-light);
        }
        .scene-icon img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .scene-item:hover .scene-icon img {
            transform: scale(1.02);
        }
        .scene-item h3 {
            font-size: 1.5rem;
            margin: 20px 16px 12px;
            font-weight: 700;
        }
        .scene-item p {
            color: var(--text-gray);
            padding: 0 20px;
            margin-bottom: 16px;
            font-size: 0.95rem;
        }

        /* 响应式：平板以下自动调整 */
        @media (max-width: 1024px) {
            .scenes-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .scenes-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 评价卡片 */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            width: 100%;
        }
        .testimonial-card {
            background: #FFFFFF;
            border-radius: 28px;
            padding: 28px;
            border: 1px solid var(--border-light);
            transition: 0.25s;
        }
        .testimonial-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary-light);
            box-shadow: 0 15px 25px rgba(0,0,0,0.05);
        }
        .review-stars {
            display: flex;
            gap: 4px;
            margin-bottom: 15px;
        }
        .star-filled {
            color: var(--yellow-star);
            font-size: 1.6rem;
        }
        .testimonial-text {
            margin-bottom: 20px;
            line-height: 1.5;
            color: var(--text-dark);
        }
        .customer {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 8px;
        }
        .customer-avatar {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            object-fit: cover;
            background: #e2e8f0;
        }
        .customer-info h4 {
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-dark);
        }
        .customer-info span {
            font-size: 1rem;
            color: var(--text-gray);
        }

        /* CTA 区域 - 按钮靠右 */
        .cta-section {
            background: linear-gradient(115deg, var(--primary-dark), var(--primary));
            border-radius: 18px;
            margin: 10px auto 10px;
            padding: 48px 56px;
            color: white;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
        }
        .cta-content {
            flex: 1;
        }
        .cta-content h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .cta-content p {
            opacity: 0.9;
        }
        .cta-button {
            flex-shrink: 0;
        }
        .btn-cta {
            background: white;
            color: var(--primary-dark);
            border: none;
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
            background: #f8fafc;
        }
  .compare-section {
            padding: 40px 0;
        }
        .compare-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
            margin-top: 40px;
        }
        .compare-card {
            background: white;
            border-radius: 28px;
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all 0.3s;
        }
        .compare-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 30px -12px rgba(0,0,0,0.1);
            border-color: var(--primary-light);
        }
        .compare-title {
            background: var(--bg-light);
            padding: 16px 24px;
            font-size: 1.3rem;
            font-weight: 700;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
        }
        .compare-images {
            display: flex;
            gap: 2px;
        }
        .compare-item {
            flex: 1;
            text-align: center;
            padding: 24px 16px;
            background: #fafcfd;
        }
        .compare-item img {
            width: 100%;
            max-height: 200px;
            object-fit: cover;
            border-radius: 20px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }
        .compare-label {
            margin-top: 12px;
            font-weight: 600;
            color: var(--primary-dark);
        }
        .compare-desc {
            font-size: 0.85rem;
            color: var(--text-gray);
            margin-top: 8px;
        }
        /* 底部 footer */
        footer {
            background: #1f2937;
            border-top: 1px solid var(--border-light);
            padding: 48px 0 32px;
        }
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 40px;
        }
        .footer-col {
            flex: 1;
            min-width: 160px;
        }
        .footer-col h3, .footer-col h4 {
            color:white;
            margin-bottom: 1rem;
            font-weight: 700;
        }
        .footer-col p, .footer-col a {
            color: white;
            text-decoration: none;
            display: block;
            margin-bottom: 0.5rem;
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: var(--primary);
        }
        .footer-social {
            display: flex;
            gap: 16px;
            margin-top: 16px;
        }
        .footer-social a {
            background: #e2e8f0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--primary-dark);
            transition: all 0.2s;
            text-decoration: none;
        }
        .footer-social a:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-3px);
        }
        .footer-copyright {
            text-align: center;
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid #dce5ec;
            font-size: 0.8rem;
            color: #7b8ba0;
        }

        /* 滚动动画 */
        .fade-up {
            opacity: 0;
            transform: translateY(60px) scale(0.96);
            transition: opacity 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0) scale(1);
        }
        
        .advantages-grid .advantage-card:nth-child(1) { transition-delay: 0.05s; }
        .advantages-grid .advantage-card:nth-child(2) { transition-delay: 0.15s; }
        .advantages-grid .advantage-card:nth-child(3) { transition-delay: 0.25s; }
        .advantages-grid .advantage-card:nth-child(4) { transition-delay: 0.35s; }
        .products-grid .product-card:nth-child(1) { transition-delay: 0.05s; }
        .products-grid .product-card:nth-child(2) { transition-delay: 0.15s; }
        .products-grid .product-card:nth-child(3) { transition-delay: 0.25s; }
        .products-grid .product-card:nth-child(4) { transition-delay: 0.35s; }
        .scenes-grid .scene-item:nth-child(1) { transition-delay: 0.05s; }
        .scenes-grid .scene-item:nth-child(2) { transition-delay: 0.15s; }
        .scenes-grid .scene-item:nth-child(3) { transition-delay: 0.25s; }
        .scenes-grid .scene-item:nth-child(4) { transition-delay: 0.35s; }
        .scenes-grid .scene-item:nth-child(5) { transition-delay: 0.45s; }
        .scenes-grid .scene-item:nth-child(6) { transition-delay: 0.55s; }
        .testimonials-grid .testimonial-card:nth-child(1) { transition-delay: 0.05s; }
        .testimonials-grid .testimonial-card:nth-child(2) { transition-delay: 0.2s; }
        .testimonials-grid .testimonial-card:nth-child(3) { transition-delay: 0.35s; }
        .cta-section.fade-up { transition-delay: 0.1s; }

        @media (max-width: 800px) {
            .carousel-container { height: 460px; }
            .slide-content h2 { font-size: 2rem; }
            .nav-container { flex-direction: column; gap: 12px; }
            .nav-right { justify-content: center; width: 100%; }
            .nav-links { flex-wrap: wrap; justify-content: center; gap: 8px; }
            .dropdown-menu { left: -20px; }
            .section-title { font-size: 1.8rem; }
            .container { padding: 0 16px; }
            .footer-inner { flex-direction: column; gap: 30px; }
            .cta-section { flex-direction: column; text-align: center; padding: 32px 24px; }
            .cta-content h2 { font-size: 1.5rem; }
        }
		@media (max-width: 768px) {
    .btn-download-nav {
        display: none;
    }
}