/* 基础样式 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }
    
    :root {
        /* 增强科技感配色方案 */
        --primary: #165DFF;
        --primary-light: #4080FF;
        --primary-dark: #0E42D2;
        --secondary: #0CC0DF;
        --accent: #722ED1;
        --neon-blue: #00F0FF;
        --dark-blue: #0A1128;
        
        /* 平台原色保留但优化 */
        --whatsapp: #25D366;
        --telegram: #0088CC;
        --viber: #665CAC;
        
        /* 中性色升级 */
        --dark: #121826;
        --gray-dark: #3E4759;
        --gray: #6B7A90;
        --gray-light: #C5CEE0;
        --light: #F7FAFC;
        --white: #FFFFFF;
        
        /* 效果参数增强 */
        --shadow: 0 4px 20px rgba(0, 21, 51, 0.08);
        --shadow-hover: 0 10px 30px rgba(22, 93, 255, 0.15);
        --shadow-strong: 0 8px 30px rgba(22, 93, 255, 0.2);
        --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --radius: 12px;
        --radius-large: 16px;
    }
    
    body {
        background-color: var(--light);
        color: var(--dark);
        line-height: 1.6;
    }
    a {
        text-decoration: none;
        color: inherit;
        transition: var(--transition);
    }
    ul,li{margin: 0; padding: 0; list-style: none;}
    .btn {
        display: inline-block;
        padding: 14px 28px;
        border-radius: 50px;
        font-weight: 600;
        text-align: center;
        cursor: pointer;
        transition: var(--transition);
        border: none;
        font-size: 16px;
        position: relative;
        overflow: hidden;
        z-index: 1;
    }
    
    .btn::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
        transition: 0.6s;
        z-index: -1;
    }
    
    .btn:hover::before {
        left: 100%;
    }
    
    .btn-primary {
        background-color: var(--primary);
        color: var(--white);
        box-shadow: 0 4px 15px rgba(22, 93, 255, 0.3);
    }
    
    .btn-primary:hover {
        background-color: var(--primary-dark);
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(22, 93, 255, 0.4);
    }
    
    .btn-secondary {
        background-color: var(--white);
        color: var(--primary);
        border: 1px solid var(--primary-light);
    }
    
    .btn-secondary:hover {
        background-color: rgba(22, 93, 255, 0.05);
        transform: translateY(-2px);
        box-shadow: 0 6px 18px rgba(22, 93, 255, 0.15);
    }
    
    section {
        padding: 100px 0;
        position: relative;
        overflow: hidden;
    }
    
    /* 新增分隔线装饰 */
    section::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 1px;
        background: linear-gradient(90deg, transparent, rgba(22, 93, 255, 0.1), transparent);
    }
    
    section:last-of-type::after {
        display: none;
    }
    
    .section-title {
        text-align: center;
        margin-bottom: 80px;
        position: relative;
        z-index: 2;
    }
    
    .section-title h2 {
        font-size: 40px;
        margin-bottom: 20px;
        position: relative;
        display: inline-block;
        background: linear-gradient(90deg, var(--primary), var(--secondary));
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
        letter-spacing: -0.5px;
    }
    
    .section-title h2::after {
        content: '';
        position: absolute;
        bottom: -12px;
        left: 50%;
        transform: translateX(-50%);
        width: 80px;
        height: 4px;
        background: linear-gradient(90deg, var(--primary), var(--secondary));
        border-radius: 3px;
    }
    
    .section-title p {
        color: var(--gray-dark);
        max-width: 700px;
        margin: 0 auto;
        font-size: 18px;
        line-height: 1.7;
    }
    
   
    
    

    
    /* Hero Banner 增强科技感 */
    .hero {
        padding: 200px 0 150px;
        background: linear-gradient(rgba(255,255,255,0.95), rgba(255,255,255,0.95)), 
                    url('whatsapp-telegram-viber-marketing.jpg') center/cover no-repeat;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    
    /* 增加科技感装饰元素 */
    .hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: radial-gradient(circle at 50% 50%, rgba(22, 93, 255, 0.1) 0%, transparent 70%);
    }
    
    .hero::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 800px;
        height: 800px;
        background: rgba(12, 192, 223, 0.05);
        border-radius: 50%;
        transform: translate(-50%, -50%) scale(1.2);
        filter: blur(100px);
        z-index: 0;
    }
    
    .hero-content {
        position: relative;
        z-index: 1;
        max-width: 900px;
        margin: 0 auto;
    }
    
    .hero h1 {
        font-size: 56px;
        margin-bottom: 25px;
        line-height: 1.3;
        background: linear-gradient(90deg, var(--primary), var(--secondary));
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
        font-weight: 700;
        letter-spacing: -1px;
    }
    
    .hero p {
        font-size: 22px;
        color: var(--gray-dark);
        max-width: 800px;
        margin: 0 auto 45px;
        line-height: 1.8;
    }
    
    .hero-buttons {
        display: flex;
        justify-content: center;
        gap: 24px;
        flex-wrap: wrap;
    }
    
    /* 核心产品板块增强 */
    .products {
        background-color: var(--white);
        position: relative;
    }
    
    /* 增加背景装饰 */
    .products::before {
        content: '';
        position: absolute;
        top: 0;
        right: 0;
        width: 500px;
        height: 500px;
        background: rgba(22, 93, 255, 0.03);
        border-radius: 50%;
        transform: translate(30%, -30%);
        z-index: 0;
    }
    
    .products-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: 36px;
        position: relative;
        z-index: 1;
    }
    
    .product-card {
        background-color: var(--white);
        border-radius: var(--radius);
        padding: 45px 35px;
        box-shadow: var(--shadow);
        transition: var(--transition);
        position: relative;
        overflow: hidden;
        border: 1px solid rgba(0, 0, 0, 0.05);
    }
    
    .product-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 4px;
    }
    
    .product-whatsapp::before {
        background-color: var(--whatsapp);
    }
    
    .product-telegram::before {
        background-color: var(--telegram);
    }
    
    .product-viber::before {
        background-color: var(--viber);
    }
    
    /* 增加悬停效果 */
    .product-card:hover {
        transform: translateY(-12px);
        box-shadow: var(--shadow-hover);
        border-color: transparent;
    }
    
    .product-card:hover::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(22, 93, 255, 0.02) 100%);
    }
    
    .product-icon {
        font-size: 56px;
        margin-bottom: 30px;
        transition: var(--transition);
        text-shadow: 0 5px 15px rgba(0,0,0,0.05);
    }
    
    .product-card:hover .product-icon {
        transform: scale(1.1) translateY(-5px);
    }
    
    .product-whatsapp .product-icon {
        color: var(--whatsapp);
    }
    
    .product-telegram .product-icon {
        color: var(--telegram);
    }
    
    .product-viber .product-icon {
        color: var(--viber);
    }
    
    .product-card h2 {
        font-size: 26px;
        margin-bottom: 20px;
        color: var(--dark);
    }
    
    .product-card p {
        color: var(--gray-dark);
        margin-bottom: 35px;
        line-height: 1.7;
    }
    
    .product-card .btn {
        width: 100%;
    }
    
    /* 核心优势模块增强 */
    .features {
        background-color: var(--light);
        position: relative;
    }
    
    /* 增加网格背景 */
    .features::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-image: 
            linear-gradient(rgba(22, 93, 255, 0.03) 1px, transparent 1px),
            linear-gradient(90deg, rgba(22, 93, 255, 0.03) 1px, transparent 1px);
        background-size: 50px 50px;
        z-index: 0;
    }
    
    .features-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 36px;
        position: relative;
        z-index: 1;
    }
    
    .feature-item {
        background-color: var(--white);
        padding: 35px;
        border-radius: var(--radius);
        box-shadow: var(--shadow);
        transition: var(--transition);
        text-align: center;
        border: 1px solid rgba(0, 0, 0, 0.05);
        position: relative;
        overflow: hidden;
    }
    
    .feature-item::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 3px;
        background: linear-gradient(90deg, var(--primary), var(--secondary));
        transform: scaleX(0);
        transition: var(--transition);
    }
    
    .feature-item:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-hover);
        border-color: transparent;
    }
    
    .feature-item:hover::before {
        transform: scaleX(1);
    }
    
    .feature-icon {
        width: 80px;
        height: 80px;
        margin: 0 auto 25px;
        border-radius: 50%;
        background: linear-gradient(135deg, rgba(22, 93, 255, 0.1), rgba(12, 192, 223, 0.1));
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 32px;
        color: var(--primary);
        transition: var(--transition);
        position: relative;
    }
    
    .feature-icon::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 100%;
        height: 100%;
        background: linear-gradient(135deg, rgba(22, 93, 255, 0.2), rgba(12, 192, 223, 0.2));
        border-radius: 50%;
        transform: translate(-50%, -50%) scale(0);
        transition: var(--transition);
        z-index: 0;
    }
    
    .feature-item:hover .feature-icon {
        background: linear-gradient(135deg, rgba(22, 93, 255, 0.15), rgba(12, 192, 223, 0.15));
        transform: scale(1.1);
    }
    
    .feature-item:hover .feature-icon::after {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0;
    }
    
    .feature-item h3 {
        font-size: 22px;
        margin-bottom: 20px;
        color: var(--dark);
    }
    
    .feature-item p {
        color: var(--gray-dark);
        line-height: 1.7;
    }
    
    /* 产品展示模块增强 */
    .product-showcase {
        background-color: var(--white);
    }
    
    .carousel {
        position: relative;
        overflow: hidden;
        border-radius: var(--radius-large);
        box-shadow: var(--shadow);
        border: 1px solid rgba(0, 0, 0, 0.05);
    }
    
    .carousel-track {
        display: flex;
        transition: transform 0.5s ease;
    }
    
    .carousel-item {
        min-width: 100%;
        padding: 40px;
    }
    
    .carousel-content {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 60px;
    }
    
    .carousel-image {
        flex: 1;
        min-width: 300px;
        position: relative;
    }
    
    .carousel-image::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 110%;
        height: 110%;
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        border-radius: var(--radius);
        transform: translate(-50%, -50%) rotate(3deg);
        z-index: -1;
        opacity: 0.1;
    }
    
    .carousel-image img {
        width: 100%;
        border-radius: var(--radius);
        box-shadow: var(--shadow);
        transition: var(--transition);
    }
    
    .carousel:hover .carousel-image img {
        transform: scale(1.03);
    }
    
    .carousel-text {
        flex: 1;
        min-width: 300px;
    }
    
    .carousel-text h3 {
        font-size: 32px;
        margin-bottom: 25px;
        color: var(--dark);
    }
    
    .carousel-text p {
        color: var(--gray-dark);
        margin-bottom: 35px;
        font-size: 17px;
        line-height: 1.8;
    }
    
    .carousel-controls {
        position: absolute;
        top: 50%;
        left: 0;
        right: 0;
        display: flex;
        justify-content: space-between;
        transform: translateY(-50%);
        padding: 0 20px;
    }
    
    .carousel-btn {
        width: 56px;
        height: 56px;
        border-radius: 50%;
        background-color: var(--white);
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: var(--shadow);
        cursor: pointer;
        transition: var(--transition);
        border: none;
        font-size: 22px;
        color: var(--primary);
        opacity: 0.9;
    }
    
    .carousel-btn:hover {
        background-color: var(--primary);
        color: var(--white);
        transform: scale(1.1);
        opacity: 1;
    }
    
    .carousel-indicators {
        display: flex;
        justify-content: center;
        margin-top: 40px;
        gap: 12px;
    }
    
    .indicator {
        width: 12px;
        height: 12px;
        border-radius: 50%;
        background-color: var(--gray-light);
        cursor: pointer;
        transition: var(--transition);
    }
    
    .indicator.active {
        background-color: var(--primary);
        width: 36px;
        border-radius: 6px;
    }
    
    /* 客户评价增强 */
    .testimonials {
        background-color: var(--light);
        position: relative;
    }
    
    .testimonials::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 1px;
        background: linear-gradient(90deg, transparent, var(--gray-light), transparent);
    }
    
    .testimonials-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: 36px;
    }
    
    .testimonial-card {
        background-color: var(--white);
        padding: 35px;
        border-radius: var(--radius);
        box-shadow: var(--shadow);
        transition: var(--transition);
        border: 1px solid rgba(0, 0, 0, 0.05);
        position: relative;
    }
    
    .testimonial-card::before {
        content: '"';
        position: absolute;
        top: 20px;
        right: 20px;
        font-size: 70px;
        color: rgba(22, 93, 255, 0.08);
        font-family: Georgia, serif;
    }
    
    .testimonial-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-hover);
        border-color: transparent;
    }
    
    .testimonial-text {
        font-style: italic;
        margin-bottom: 25px;
        color: var(--gray-dark);
        position: relative;
        z-index: 1;
        line-height: 1.8;
    }
    
    .testimonial-author {
        display: flex;
        align-items: center;
    }
    
    .author-avatar {
        width: 56px;
        height: 56px;
        border-radius: 50%;
        background-color: var(--light);
        margin-right: 18px;
        overflow: hidden;
        border: 2px solid var(--primary-light);
        box-shadow: 0 4px 12px rgba(22, 93, 255, 0.15);
    }
    
    .author-avatar img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    
    .author-info h4 {
        font-size: 17px;
        margin-bottom: 5px;
        color: var(--dark);
    }
    
    .author-info p {
        font-size: 14px;
        color: var(--gray);
    }
    
    .stars {
        color: #FFD700;
        margin-bottom: 20px;
        font-size: 16px;
    }
    
    /* CTA模块增强 */
    .cta {
        background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        color: var(--white);
        text-align: center;
        padding: 120px 0;
        position: relative;
        overflow: hidden;
    }
    
    /* 增加科技感背景效果 */
    .cta::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-image: 
            radial-gradient(circle at 10% 20%, rgba(255,255,255,0.15) 0%, transparent 20%),
            radial-gradient(circle at 90% 70%, rgba(255,255,255,0.15) 0%, transparent 30%);
    }
    
    /* 增加网格线条 */
    .cta::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-image: 
            linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
            linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
        background-size: 50px 50px;
    }
    
    .cta-content {
        position: relative;
        z-index: 1;
        max-width: 800px;
        margin: 0 auto;
    }
    
    .cta h2 {
        font-size: 38px;
        margin-bottom: 25px;
        position: relative;
        color: #7ae9ff;
    }
    
    .cta p {
        font-size: 20px;
        max-width: 700px;
        margin: 0 auto 45px;
        opacity: 0.9;
        line-height: 1.8;
    }
    
    .cta .btn-primary {
        background-color: var(--white);
        color: var(--primary);
        box-shadow: 0 6px 20px rgba(0,0,0,0.2);
        padding: 16px 32px;
        font-size: 17px;
    }
    
    .cta .btn-primary:hover {
        background-color: var(--light);
        transform: translateY(-3px);
        box-shadow: 0 8px 25px rgba(0,0,0,0.25);
    }
    
    .cta .btn-secondary {
        background-color: transparent;
        color: var(--white);
        border-color: var(--white);
        padding: 16px 32px;
        font-size: 17px;
    }
    
    .cta .btn-secondary:hover {
        background-color: rgba(255,255,255,0.1);
        transform: translateY(-3px);
        box-shadow: 0 6px 20px rgba(0,0,0,0.15);
    }
    
    /* 博客模块增强 */
    .blog {
        background-color: var(--white);
    }
    
    .blog-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: 36px;
        margin-bottom: 50px;
    }
    
    .blog-card {
        background-color: var(--white);
        border-radius: var(--radius);
        overflow: hidden;
        box-shadow: var(--shadow);
        transition: var(--transition);
        border: 1px solid rgba(0, 0, 0, 0.05);
    }
    
    .blog-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-hover);
        border-color: transparent;
    }
    
    .blog-image {
        height: 260px;
        overflow: hidden;
        position: relative;
    }
    
    .blog-image::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(to bottom, transparent, rgba(0,0,0,0.15));
        transition: var(--transition);
    }
    
    .blog-card:hover .blog-image::after {
        background: linear-gradient(to bottom, transparent, rgba(0,0,0,0.25));
    }
    
    .blog-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .blog-card:hover .blog-image img {
        transform: scale(1.08);
    }
    
    .blog-content {
        padding: 30px;
    }
    
    .blog-date {
        font-size: 14px;
        color: var(--gray);
        margin-bottom: 12px;
        display: flex;
        align-items: center;
    }
    
    .blog-date i {
        margin-right: 5px;
        font-size: 12px;
    }
    
    .blog-card h3 {
        font-size: 22px;
        margin-bottom: 18px;
        color: var(--dark);
        transition: var(--transition);
        line-height: 1.5;
    }
    
    .blog-card:hover h3 {
        color: var(--primary);
    }
    
    .blog-card p {
        color: var(--gray-dark);
        margin-bottom: 25px;
        line-height: 1.7;
    }
    
    .blog-read-more {
        display: inline-block;
        font-weight: 600;
        color: var(--primary);
        position: relative;
        padding-bottom: 5px;
    }
    
    .blog-read-more::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 40px;
        height: 2px;
        background-color: var(--primary);
        transition: var(--transition);
    }
    
    .blog-read-more:hover::after {
        width: 100%;
    }
    
  /* SEO优化的分类文章盒子容器 */
.category-blogs.seo-optimized {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin: 40px 0;
    padding: 30px 0;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
}

/* 单个分类文章盒子 - 仅含标题 */
.category-blogs.seo-optimized .category-blog-box {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    padding: 25px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.category-blogs.seo-optimized .category-blog-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

/* 分类名称（H3层级） */
.category-blogs.seo-optimized .category-name h3 {
    color: #1a365d;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin: 0 0 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid #e2e8f0;
}

/* 文章标题（H4层级） */
.category-blogs.seo-optimized .subcategory-posts h4 {
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 10px;
    line-height: 1.6;
}

.category-blogs.seo-optimized .subcategory-posts h4 a {
    color: #2d3748;
    text-decoration: none;
    transition: all 0.2s ease;
}

.category-blogs.seo-optimized .subcategory-posts h4 a:hover {
    color: #0073aa;
    padding-left: 5px;
}

/* 子分类文章列表样式 */
.category-blogs.seo-optimized .subcategory-posts {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
    flex-grow: 1;
}

.category-blogs.seo-optimized .subcategory-posts li {
    border-bottom: 1px dashed #f0f0f0;
    line-height:180%;
}

.category-blogs.seo-optimized .subcategory-posts li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

/* 查看更多链接 */
.category-blogs.seo-optimized .category-more {
    display: inline-block;
    color: #165DFF;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    margin-top: 15px;
    padding: 5px 0;
    border-top: 1px solid #f0f0f0;
}

.category-blogs.seo-optimized .category-more:hover {
    color: #006799;
    text-decoration: underline;
    padding-left: 5px;
}

/* 无文章时的样式 */
.category-blogs.seo-optimized .category-blog-content h4 {
    font-size: 15px;
    font-weight: normal;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .category-blogs.seo-optimized {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .category-blogs.seo-optimized {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 20px 0;
    }
    
    .category-blogs.seo-optimized .category-blog-box {
        padding: 20px;
    }
}

    
    
    .blog-cta {
        text-align: center;
    }
    
    .dropdown-title {
        display: block;
        font-weight: 600;
        color: var(--dark);
        margin-bottom: 4px;
    }
    
    .dropdown-desc {
        display: block;
        font-size: 13px;
        color: var(--gray);
        line-height: 1.4;
    }
    
    /* 动画效果增强 */
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(40px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    @keyframes pulse {
        0% { transform: scale(1); }
        50% { transform: scale(1.05); }
        100% { transform: scale(1); }
    }
    
    @keyframes float {
        0% { transform: translateY(0px); }
        50% { transform: translateY(-15px); }
        100% { transform: translateY(0px); }
    }
    
    .fade-in-up {
        opacity: 0;
        animation: fadeInUp 0.8s ease forwards;
    }
    
    .pulse {
        animation: pulse 3s infinite;
    }
    
    .float {
        animation: float 6s ease-in-out infinite;
    }
    
    .delay-1 { animation-delay: 0.1s; }
    .delay-2 { animation-delay: 0.2s; }
    .delay-3 { animation-delay: 0.3s; }
    .delay-4 { animation-delay: 0.4s; }
    .delay-5 { animation-delay: 0.5s; }
    
    /* 响应式设计调整 */
    @media (max-width: 992px) {
        .hero h1 {
            font-size: 44px;
        }
        
        .section-title h2 {
            font-size: 34px;
        }
        
        .carousel-content {
            gap: 30px;
        }
        
        .carousel-item {
            padding: 30px;
        }
    }
    
    @media (max-width: 768px) {
        .hero {
            padding: 180px 0 120px;
        }
        
        .hero h1 {
            font-size: 36px;
        }
        
        .hero p {
            font-size: 18px;
        }
        
        section {
            padding: 80px 0;
        }
        
        .cta h2 {
            font-size: 32px;
        }
        
        .section-title {
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 30px;
        }
    }
    
    @media (max-width: 576px) {
        .hero h1 {
            font-size: 28px;
        }
        
        .btn {
            padding: 12px 20px;
            font-size: 15px;
        }
        
        .hero-buttons {
            gap: 15px;
        }
        
        .section-title h2 {
            font-size: 26px;
        }
        
        .section-title p {
            font-size: 16px;
        }
    }