* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
        :root { 
            --primary: #2563eb;
            --secondary: #7c3aed;
            --gradient: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
            --light-bg: #f8fafc;
            --white: #ffffff;
            --text-primary: #1e293b;
            --text-secondary: #64748b;
            --border-color: #e2e8f0;
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
            --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
        }
        html { font-size: 16px; scroll-behavior: smooth; }
        body { font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif; background: var(--white); color: var(--text-primary); line-height: 1.6; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
        
        /* Navbar */
        .navbar { position: fixed; top: 0; width: 100%; z-index: 1000; padding: 0.8rem 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(20px); box-shadow: 0 1px 2px rgba(0,0,0,0.05); transition: all 0.3s; }
        .navbar.scrolled { padding: 0.5rem 0; box-shadow: var(--shadow-lg); }
        .nav-container { display: flex; justify-content: space-between; align-items: center; max-width: 1600px; margin: 0 auto; padding: 0 4%; }
        .logo { font-size: 1.4rem; font-weight: bold; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; white-space: nowrap; }
        .nav-links { display: flex; list-style: none; gap: 3rem; align-items: center; }
        .nav-links a { color: var(--text-primary); text-decoration: none; font-weight: 500; transition: all 0.3s; font-size: 0.95rem; }
        .nav-links a:hover { color: var(--primary); }
		.nav-links li.active a{color:#3a72ff}
        .nav-cta { background: var(--gradient); color: white !important; padding: 0.6rem 1.5rem; border-radius: 25px; font-weight: 600; font-size: 0.9rem !important; }
        .nav-cta:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
        .mobile-menu-btn { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; padding: 0.5rem; color: var(--text-primary); }
 /* ========================================
   浮动联系菜单
   ======================================== */
.float-menu { 
    position: fixed; 
    right: 20px; 
    top: 50%; 
    transform: translateY(-50%); 
    z-index: 999; 
    display: flex; 
    flex-direction: column; 
    gap: 10px; 
}
.float-item { 
    position: relative; 
    width: 55px; 
    height: 55px; 
    background: white; 
    border-radius: 50%; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    font-size: 1.5rem; 
    cursor: pointer; 
    box-shadow: var(--shadow-lg); 
    border: 2px solid var(--border-color); 
    transition: all 0.3s; 
	text-decoration:none;
}
.float-item:hover { 
    transform: scale(1.1); 
    border-color: var(--primary); 
}
.float-item .float-icon { 
    display: flex; 
    align-items: center; 
    justify-content: center; 
}
.float-item .float-popup { 
    position: absolute; 
    right: 70px; 
    top: 50%; 
    transform: translateY(-50%) translateX(20px); 
    background: white; 
    padding: 1.5rem; 
    border-radius: 15px; 
    box-shadow: var(--shadow-xl); 
    border: 2px solid var(--border-color); 
    opacity: 0; 
    visibility: hidden; 
    transition: all 0.3s; 
    white-space: nowrap; 
    min-width: 200px; 
}
.float-item:hover .float-popup { 
    opacity: 1; 
    visibility: visible; 
    transform: translateY(-50%) translateX(0); 
}
.float-popup-title { 
    font-weight: 700; 
    color: var(--text-primary); 
    margin-bottom: 0.8rem; 
    font-size: 0.95rem; 
}
.float-popup-content { 
    display: flex; 
    align-items: center; 
    gap: 1rem; 
}
.float-popup-phone { 
    font-size: 1.1rem; 
    color: var(--primary); 
    font-weight: 600; 
}
.float-popup-qr { 
    width: 120px; 
    height: 120px; 
    background: var(--light-bg); 
    border-radius: 10px; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    font-size: 3rem; 
    border: 2px dashed var(--border-color); 
}
.float-popup-qr img { 
    width: 100%; 
    height: 100%; 
    object-fit: contain; 
    border-radius: 8px; 
}
.float-item.phone:hover { 
    background: linear-gradient(135deg, #10b981, #059669); 
    border-color: transparent; 
}
.float-item.phone .float-icon { 
    color: white; 
}
.float-item.wechat:hover { 
    background: linear-gradient(135deg, #07c160, #06ad56); 
    border-color: transparent; 
}
.float-item.wechat .float-icon { 
    color: white; 
}
.float-item.qq:hover { 
    background: linear-gradient(135deg, #12b7f5, #0ea5e9); 
    border-color: transparent; 
}
.float-item.qq .float-icon { 
    color: white; 
}
        /* Hero Slider */
        .hero-slider { position: relative; height: 85vh; min-height: 560px; overflow: hidden; }
        .slide { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; opacity: 0; transition: opacity 1s ease-in-out; }
        .slide.active { opacity: 1; }
        .slide::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(37,99,235,0.92) 0%, rgba(124,58,237,0.88) 100%); }
        .slide-content { position: relative; z-index: 2; text-align: center; color: white; max-width: 900px; padding: 0 5%; animation: slideUp 1s ease-out; }
        @keyframes slideUp { from { opacity: 0; transform: translateY(40px); } to { opacity: 1; transform: translateY(0); } }
        .slide-badge { display: inline-block; padding: 0.5rem 1.2rem; background: rgba(255,255,255,0.15); backdrop-filter: blur(10px); border-radius: 25px; font-size: 0.8rem; font-weight: 600; margin-bottom: 1.2rem; letter-spacing: 0.5px; border: 1px solid rgba(255,255,255,0.3); }
        .slide-title { font-size: clamp(1.8rem, 5vw, 3.5rem); margin-bottom: 1rem; font-weight: 800; line-height: 1.2; text-shadow: 0 4px 20px rgba(0,0,0,0.2); }
        .slide-desc { font-size: clamp(0.95rem, 2vw, 1.2rem); margin-bottom: 2rem; opacity: 0.95; line-height: 1.7; max-width: 700px; margin-left: auto; margin-right: auto; }
        .slide-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
        .btn-hero-primary { background: white; color: var(--primary); padding: 0.9rem 2.2rem; border-radius: 40px; font-weight: 700; text-decoration: none; display: inline-block; transition: all 0.3s; font-size: 0.95rem; }
        .btn-hero-primary:active { transform: scale(0.95); }
        .btn-hero-secondary { background: rgba(255,255,255,0.15); backdrop-filter: blur(10px); color: white; padding: 0.9rem 2.2rem; border-radius: 40px; font-weight: 700; text-decoration: none; display: inline-block; transition: all 0.3s; font-size: 0.95rem; border: 2px solid rgba(255,255,255,0.5); }
        .btn-hero-secondary:active { transform: scale(0.95); }
        
        /* Slider Controls */
        .slider-dots { position: absolute; bottom: 25px; left: 50%; transform: translateX(-50%); display: flex; gap: 0.6rem; z-index: 10; }
        .dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.4); cursor: pointer; transition: all 0.3s; border: 2px solid white; min-width: 10px; }
        .dot.active { background: white; transform: scale(1.2); }
        .slider-arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 45px; height: 45px; background: rgba(255,255,255,0.15); backdrop-filter: blur(10px); border: 2px solid rgba(255,255,255,0.5); border-radius: 50%; cursor: pointer; z-index: 10; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; color: white; transition: all 0.3s; -webkit-appearance: none; }
        .slider-arrow:active { transform: translateY(-50%) scale(0.9); }
        .slider-arrow.prev { left: 15px; }
        .slider-arrow.next { right: 15px; }
        
        /* Stats Bar */
        .stats-bar { background: var(--white); padding: 2rem 4%; margin-top: -60px; position: relative; z-index: 20; box-shadow: var(--shadow-xl); max-width: 1400px; margin-left: auto; margin-right: auto; border-radius: 20px; }
        .stats-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1rem; }
        .stat-item { text-align: center; padding: 0.8rem; }
        .stat-number { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 800; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; line-height: 1.2; }
        .stat-label { color: var(--text-secondary); margin-top: 0.3rem; font-size: 0.8rem; font-weight: 500; }
        
        /* Section Styles */
        .section { padding: 60px 4%; max-width: 1600px; margin: 0 auto; }
        .section-header { text-align: center; margin-bottom: 3.5rem; }
        .section-tag { display: inline-block; padding: 0.5rem 1.2rem; background: rgba(37,99,235,0.1); color: var(--primary); border-radius: 25px; font-size: 0.95rem; font-weight: 600; margin-bottom: 1rem; letter-spacing: 0.5px; }
        .section-title { font-size: clamp(1.6rem, 4vw, 2.5rem); margin-bottom: 0.8rem; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; line-height: 1.3; }
        .section-desc { color: var(--text-secondary); font-size: clamp(0.95rem, 2vw, 1.1rem); max-width: 650px; margin: 0 auto; line-height: 1.8; }
        
        /* Features Grid */
        .features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
        .feature-card { background: white; padding: 2rem 1.5rem; border-radius: 20px; border: 1px solid var(--border-color); transition: all 0.4s; position: relative; overflow: hidden; }
        .feature-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gradient); transform: scaleX(0); transition: transform 0.4s; }
        .feature-card:hover::before { transform: scaleX(1); }
        .feature-card:active { transform: translateY(-5px); box-shadow: var(--shadow-xl); }
        .feature-icon { width: 65px; height: 65px; background: linear-gradient(135deg, rgba(37,99,235,0.1), rgba(124,58,237,0.1)); border-radius: 20px; display: flex; align-items: center; justify-content: center; font-size: 1.8rem; margin-bottom: 1.2rem; transition: all 0.3s; }
        .feature-card:hover .feature-icon { background: var(--gradient); color: white; transform: scale(1.1) rotate(5deg); }
        .feature-title { font-size: 1.2rem; margin-bottom: 0.7rem; font-weight: 700; }
        .feature-desc { color: var(--text-secondary); line-height: 1.7; font-size: 0.95rem; margin-bottom: 1rem; }
        .feature-link { color: var(--primary); text-decoration: none; font-weight: 700; display: inline-flex; align-items: center; gap: 0.5rem; transition: all 0.3s; font-size: 0.9rem; }
        .feature-link:hover { gap: 1rem; }
        
        /* Products Preview */
        .products-section { background: var(--light-bg); padding: 60px 4%; }
        .products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; }
        .product-card { background: white; padding: 1.8rem; border-radius: 20px; border: 1px solid var(--border-color); transition: all 0.4s; text-align: center; }
        .product-card:active { transform: translateY(-8px); box-shadow: var(--shadow-xl); }
        .product-icon { width: 75px; height: 75px; background: var(--light-bg); border-radius: 25px; display: flex; align-items: center; justify-content: center; font-size: 2.2rem; margin: 0 auto 1.2rem; transition: all 0.3s; }
        .product-card:hover .product-icon { background: var(--gradient); color: white; transform: scale(1.1); }
        .product-name { font-size: 1.15rem; margin-bottom: 0.5rem; font-weight: 700; }
        .product-price { color: var(--primary); font-size: 1.5rem; font-weight: 800; margin-bottom: 0.7rem; }
        .product-price small { font-size: 0.85rem; color: var(--text-secondary); font-weight: normal; }
        .product-desc { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 1rem; line-height: 1.6; }
        
        /* Why Choose Us */
        .why-section { padding: 60px 4%; }
        .why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; margin-bottom: 4rem; }
        .why-content h2 { font-size: clamp(1.6rem, 4vw, 2.3rem); margin-bottom: 1.2rem; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; line-height: 1.3; }
        .why-content > p { color: var(--text-secondary); font-size: 1rem; margin-bottom: 1.8rem; line-height: 1.8; }
        .why-list { list-style: none; }
        .why-list li { padding: 0.9rem 0; border-bottom: 1px solid var(--border-color); display: flex; align-items: flex-start; gap: 1rem; font-size: 0.95rem; }
        .why-list li::before { content: '✓'; color: white; background: var(--gradient); width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; flex-shrink: 0; font-size: 0.8rem; }
        .why-visual { height: 400px; background: linear-gradient(135deg, rgba(37,99,235,0.08), rgba(124,58,237,0.08)); border-radius: 25px; display: flex; align-items: center; justify-content: center; font-size: 10rem; animation: float 6s ease-in-out infinite; border: 1px solid var(--border-color); }
        @keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-20px); } }
        
        /* Industries */
        .industries-section { background: var(--light-bg); padding: 60px 4%; }
        .industries-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1rem; }
        .industry-card { background: white; padding: 1.5rem 1rem; border-radius: 18px; text-align: center; border: 1px solid var(--border-color); transition: all 0.4s; }
        .industry-card:active { transform: translateY(-8px); box-shadow: var(--shadow-xl); border-color: var(--primary); }
        .industry-icon { font-size: 2.5rem; margin-bottom: 0.7rem; }
        .industry-name { font-weight: 700; font-size: 0.9rem; margin-bottom: 0.3rem; }
        .industry-count { color: var(--text-secondary); font-size: 0.75rem; }
        
        /* Testimonials */
        .testimonials-section { padding: 60px 4%; }
        .testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
        .testimonial-card { background: white; padding: 2rem; border-radius: 20px; border: 1px solid var(--border-color); transition: all 0.4s; }
        .testimonial-card:active { transform: translateY(-8px); box-shadow: var(--shadow-xl); }
        .testimonial-stars { color: #fbbf24; font-size: 1.1rem; margin-bottom: 1rem; }
        .testimonial-quote { font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 1.5rem; font-style: italic; line-height: 1.7; }
        .testimonial-author { display: flex; align-items: center; gap: 0.9rem; }
        .author-avatar { width: 45px; height: 45px; background: var(--gradient); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; color: white; font-size: 1rem; flex-shrink: 0; }
        .author-info strong { display: block; font-size: 0.95rem; }
        .author-info span { color: var(--text-secondary); font-size: 0.8rem; }
        
        /* CTA Section */
        .cta-section { background: var(--gradient); padding: 80px 4%; text-align: center; }
        .cta-section h2 { font-size: clamp(1.8rem, 5vw, 2.8rem); margin-bottom: 1rem; color: white; line-height: 1.3; }
        .cta-section p { font-size: clamp(1rem, 2vw, 1.3rem); margin-bottom: 2rem; opacity: 0.95; color: white; max-width: 600px; margin-left: auto; margin-right: auto; }
        .cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
        .btn-cta-primary { background: white; color: var(--primary); padding: 1rem 2.5rem; border-radius: 45px; font-weight: 700; text-decoration: none; display: inline-block; transition: all 0.3s; font-size: 1rem; }
        .btn-cta-primary:active { transform: scale(0.95); }
        .btn-cta-secondary { background: rgba(255,255,255,0.15); backdrop-filter: blur(10px); color: white; padding: 1rem 2.5rem; border-radius: 45px; font-weight: 700; text-decoration: none; display: inline-block; transition: all 0.3s; font-size: 1rem; border: 2px solid rgba(255,255,255,0.5); }
        .btn-cta-secondary:active { transform: scale(0.95); }
        
        /* Footer */
        footer { background: #0f172a; padding: 50px 4% 25px; color: #94a3b8; }
        .footer-grid { max-width: 1600px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2.5rem; margin-bottom: 3rem; }
        .footer-brand h3 { font-size: 1.3rem; color: white; margin-bottom: 0.8rem; }
        .footer-brand p { margin-bottom: 1.2rem; line-height: 1.7; font-size: 0.9rem; }
        .social-links { display: flex; gap: 0.8rem; }
        .social-link { width: 40px; height: 40px; background: rgba(255,255,255,0.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; transition: all 0.3s; }
        .social-link:active { background: var(--gradient); transform: translateY(-3px); }
        .footer-links h4 { color: white; margin-bottom: 1.2rem; font-weight: 600; font-size: 1rem; }
        .footer-links ul { list-style: none; }
        .footer-links li { margin-bottom: 0.7rem; }
        .footer-links a { color: #94a3b8; text-decoration: none; transition: all 0.3s; font-size: 0.9rem; }
        .footer-links a:active { color: white; }
        .copyright { text-align: center; padding-top: 1.5rem; border-top: 1px solid #1e293b; font-size: 0.85rem; }
		.copyright a{color:#ffffff;text-decoration: none;}
        
        /* ===== 移动端优化 ===== */
        @media (max-width: 1024px) {
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .products-grid { grid-template-columns: repeat(2, 1fr); }
            .industries-grid { grid-template-columns: repeat(3, 1fr); }
            .why-visual { height: 300px; font-size: 6rem; }
            .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
        }
        
        @media (max-width: 768px) {
            .mobile-menu-btn { display: block; }
            .nav-links { position: fixed; top: 60px; gap: 1.2rem; left: 0; right: 0; background: white; flex-direction: column; padding: 1.5rem; transform: translateY(-100%); opacity: 0; transition: all 0.3s; box-shadow: 0 4px 10px rgba(0,0,0,0.1); visibility: hidden; }
            .nav-links.active { transform: translateY(0); opacity: 1; visibility: visible; }
            .nav-links li { width: 100%; text-align: center; }
            .nav-links a { display: block; padding: 0.8rem; font-size: 1.1rem; }
            .nav-cta { display: inline-block; margin-top: 0.5rem; }
            
            .hero-slider { min-height: 500px; }
            .slide-title { font-size: 1.6rem; }
            .slide-desc { font-size: 0.95rem; }
            .btn-hero-primary, .btn-hero-secondary { padding: 0.8rem 1.8rem; font-size: 0.9rem; }
            .slider-arrow { display: none; }
            .slider-dots { bottom: 15px; }
            .dot { width: 8px; height: 8px; }
            
            .stats-bar { margin-top: -40px; padding: 1.5rem 4%; border-radius: 15px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }
            .stat-number { font-size: 1.5rem; }
            .stat-label { font-size: 0.75rem; }
            
            .section { padding: 45px 4%; }
            .section-header { margin-bottom: 2.5rem; }
            .section-title { font-size: 1.5rem; }
            .section-desc { font-size: 0.9rem; }
            
            .features-grid { grid-template-columns: 1fr; gap: 1rem; }
            .feature-card { padding: 1.5rem; }
            .feature-icon { width: 55px; height: 55px; font-size: 1.5rem; }
            .feature-title { font-size: 1.1rem; }
            .feature-desc { font-size: 0.9rem; }
            
            .products-section { padding: 45px 4%; }
            .products-grid { grid-template-columns: 1fr; gap: 1rem; }
            .product-card { padding: 1.5rem; }
            .product-icon { width: 65px; height: 65px; font-size: 2rem; }
            
            .why-section { padding: 45px 4%; }
            .why-grid { grid-template-columns: 1fr; gap: 2rem; margin-bottom: 2.5rem; }
            .why-content h2 { font-size: 1.5rem; }
            .why-content > p { font-size: 0.95rem; }
            .why-list li { font-size: 0.9rem; padding: 0.7rem 0; }
            .why-visual { order: -1; height: 220px; font-size: 5rem; border-radius: 20px; }
            
            .industries-section { padding: 45px 4%; }
            .industries-grid { grid-template-columns: repeat(3, 1fr); gap: 0.7rem; }
            .industry-card { padding: 1.2rem 0.7rem; }
            .industry-icon { font-size: 2rem; }
            .industry-name { font-size: 0.8rem; }
            .industry-count { font-size: 0.7rem; }
            
            .testimonials-section { padding: 45px 4%; }
            .testimonials-grid { grid-template-columns: 1fr; gap: 1rem; }
            .testimonial-card { padding: 1.5rem; }
            .testimonial-quote { font-size: 0.9rem; }
            .author-avatar { width: 40px; height: 40px; font-size: 0.95rem; }
            
            .cta-section { padding: 60px 4%; }
            .cta-section h2 { font-size: 1.6rem; }
            .cta-section p { font-size: 0.95rem; }
            .btn-cta-primary, .btn-cta-secondary { padding: 0.9rem 2rem; font-size: 0.95rem; width: 100%; max-width: 280px; }
            
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
            .footer-brand { grid-column: 1 / -1; }
            .social-links { justify-content: center; }
            /* 移动端隐藏浮动菜单 */
            .float-menu { display: none; }
        }
        
        @media (max-width: 480px) {
            html { font-size: 14px; }
            .nav-container { padding: 0 3%; }
            .logo { font-size: 1.2rem; }
            
            .hero-slider { min-height: 450px; }
            .slide-badge { padding: 0.4rem 1rem; font-size: 0.75rem; }
            .slide-title { font-size: 1.4rem; }
            .slide-desc { font-size: 0.85rem; }
            .slide-buttons { flex-direction: column; align-items: center; }
            .btn-hero-primary, .btn-hero-secondary { width: 100%; max-width: 250px; }
            
            .stats-bar { padding: 1.2rem 3%; }
            .stat-number { font-size: 1.3rem; }
            
            .section { padding: 35px 3%; }
            .section-title { font-size: 1.35rem; }
            
            .industries-grid { grid-template-columns: repeat(2, 1fr); }
            .industry-card { padding: 1rem 0.5rem; }
            .industry-icon { font-size: 1.8rem; }
            
            .footer-grid { grid-template-columns: 1fr; text-align: center; }
            .footer-brand { grid-column: 1; }
            .social-links { justify-content: center; }
            /* 移动端隐藏浮动菜单 */
            .float-menu { display: none; }
        }
        
        /* 触摸优化 */
        @media (hover: none) and (pointer: coarse) {
            .feature-card:hover, .product-card:hover, .industry-card:hover, .testimonial-card:hover { transform: none; }
            .feature-card:active, .product-card:active, .industry-card:active, .testimonial-card:active { transform: translateY(-5px); }
            .nav-links a:active, .footer-links a:active { opacity: 0.7; }
        }