/* 全局重置与变量 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary:#f0f4f8;--bg-secondary:#ffffff;--text-primary:#1a1a2e;--text-secondary:#4a4a6a;--accent:#4fc3f7;--accent-dark:#0288d1;--glass-bg:rgba(255,255,255,0.75);--glass-border:rgba(255,255,255,0.3);--shadow:0 8px 32px rgba(0,0,0,0.08);--radius:16px;--nav-bg:rgba(255,255,255,0.85);--card-bg:#ffffff;--footer-bg:#0a1628;--footer-text:#b0bec5;--section-gap:80px;--max-width:1200px}body.dark-mode{--bg-primary:#0a1628;--bg-secondary:#111d35;--text-primary:#e8eaf6;--text-secondary:#b0bec5;--glass-bg:rgba(20,30,50,0.75);--glass-border:rgba(255,255,255,0.1);--shadow:0 8px 32px rgba(0,0,0,0.4);--nav-bg:rgba(10,22,40,0.9);--card-bg:#1a2a4a;--footer-bg:#050e1a}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;transition:background 0.3s,color 0.3s;overflow-x:hidden}.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}.glass{background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:var(--radius);box-shadow:var(--shadow)}section{padding:var(--section-gap) 0}.section-header{text-align:center;margin-bottom:48px}.section-header h2{font-size:2.2rem;font-weight:800;color:var(--text-primary);margin-bottom:12px;position:relative;display:inline-block}.section-header h2::after{content:'';position:absolute;bottom:-6px;left:50%;transform:translateX(-50%);width:60px;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-dark));border-radius:2px}.section-desc{font-size:1.1rem;color:var(--text-secondary);max-width:680px;margin:0 auto}.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:var(--nav-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--glass-border);transition:background 0.3s}.header-container{display:flex;align-items:center;justify-content:space-between;max-width:var(--max-width);margin:0 auto;padding:0 20px;height:70px}.logo a{display:flex;align-items:center;text-decoration:none}.main-nav ul{display:flex;list-style:none;gap:8px}.main-nav .nav-link{text-decoration:none;color:var(--text-secondary);padding:8px 16px;border-radius:8px;font-size:0.95rem;font-weight:500;transition:all 0.3s}.main-nav .nav-link:hover,.main-nav .nav-link.active{color:var(--accent);background:rgba(79,195,247,0.1)}.header-actions{display:flex;gap:8px;align-items:center}.header-actions button{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:8px;border-radius:8px;transition:all 0.3s;display:flex;align-items:center;justify-content:center}.header-actions button:hover{color:var(--accent);background:rgba(79,195,247,0.1)}.mobile-menu-toggle{display:none}.search-bar{max-height:0;overflow:hidden;transition:max-height 0.4s ease;background:var(--nav-bg);backdrop-filter:blur(20px)}.search-bar.active{max-height:80px}.search-bar form{display:flex;max-width:600px;margin:0 auto;padding:12px 20px;gap:8px}.search-bar input{flex:1;padding:10px 16px;border:1px solid var(--glass-border);border-radius:8px;background:var(--bg-primary);color:var(--text-primary);font-size:1rem}.search-bar input:focus{outline:none;border-color:var(--accent)}.search-bar button{padding:10px 24px;background:var(--accent);color:#fff;border:none;border-radius:8px;cursor:pointer;font-weight:600}.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;padding-top:70px}.hero-slider{position:relative;width:100%;height:100%}.slide{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity 0.8s ease;padding:40px 20px}.slide.active{opacity:1;position:relative}.slide-content{text-align:center;max-width:800px;margin:0 auto}.slide-content h1,.slide-content h2{font-size:3rem;font-weight:800;margin-bottom:20px;color:#ffffff;text-shadow:0 2px 20px rgba(0,0,0,0.3)}.hero-subtitle{font-size:1.2rem;color:rgba(255,255,255,0.85);margin-bottom:32px;line-height:1.8}.hero-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}.btn-primary{display:inline-block;padding:14px 36px;background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;text-decoration:none;border-radius:50px;font-weight:700;font-size:1rem;transition:all 0.3s;box-shadow:0 4px 20px rgba(79,195,247,0.4)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 30px rgba(79,195,247,0.6)}.btn-secondary{display:inline-block;padding:14px 36px;background:rgba(255,255,255,0.15);color:#fff;text-decoration:none;border-radius:50px;font-weight:600;font-size:1rem;border:1px solid rgba(255,255,255,0.3);transition:all 0.3s}.btn-secondary:hover{background:rgba(255,255,255,0.25)}.btn-outline{display:inline-block;padding:10px 28px;border:1px solid var(--accent);color:var(--accent);text-decoration:none;border-radius:50px;font-weight:600;font-size:0.9rem;transition:all 0.3s}.btn-outline:hover{background:var(--accent);color:#fff}.slider-controls{position:absolute;bottom:40px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:16px;z-index:10}.slider-prev,.slider-next{background:rgba(255,255,255,0.2);border:none;color:#fff;width:44px;height:44px;border-radius:50%;font-size:1.5rem;cursor:pointer;transition:all 0.3s;display:flex;align-items:center;justify-content:center}.slider-prev:hover,.slider-next:hover{background:rgba(255,255,255,0.4)}.slider-dots{display:flex;gap:8px}.slider-dots button{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,0.4);border:none;cursor:pointer;transition:all 0.3s}.slider-dots button.active{background:#fff;width:30px;border-radius:5px}.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:32px}.about-card{padding:32px 24px;text-align:center;transition:all 0.3s}.about-card:hover{transform:translateY(-6px)}.about-card .card-icon{margin-bottom:16px}.about-card h3{font-size:1.3rem;margin-bottom:12px;color:var(--text-primary)}.about-card p{color:var(--text-secondary);font-size:0.95rem}.about-detail{padding:40px;margin-top:24px}.brand-story h3,.brand-history h3{font-size:1.5rem;margin-bottom:16px;color:var(--text-primary)}.brand-story p{color:var(--text-secondary);line-height:1.8;margin-bottom:32px}.timeline{list-style:none;padding:0}.timeline li{position:relative;padding:0 0 20px 30px;color:var(--text-secondary);border-left:2px solid var(--accent)}.timeline li:last-child{padding-bottom:0}.timeline .year{font-weight:700;color:var(--accent);margin-right:12px}.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:32px}.product-card{padding:32px 24px;text-align:center;transition:all 0.3s;display:flex;flex-direction:column;align-items:center;gap:16px}.product-card:hover{transform:translateY(-6px)}.product-card .product-image{width:100%;height:160px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:8px}.product-card h3{font-size:1.3rem;color:var(--text-primary)}.product-card p{color:var(--text-secondary);font-size:0.9rem;line-height:1.7}.product-advantages{padding:40px;margin-top:24px}.product-advantages h3{text-align:center;font-size:1.5rem;margin-bottom:24px;color:var(--text-primary)}.advantages-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.advantage-item{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg-primary);border-radius:10px;color:var(--text-primary);font-weight:500;font-size:0.95rem}.solutions-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.solution-card{padding:32px;transition:all 0.3s}.solution-card:hover{transform:translateY(-4px)}.solution-card h3{font-size:1.2rem;margin-bottom:12px;color:var(--text-primary)}.solution-card p{color:var(--text-secondary);font-size:0.95rem;line-height:1.7}.industry-section{margin:0 20px;padding:48px 0}.industry-list{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;padding:20px 0}.industry-item{background:var(--accent);color:#fff;padding:12px 28px;border-radius:50px;font-weight:600;font-size:1rem;transition:all 0.3s;cursor:default}.industry-item:hover{transform:scale(1.05);box-shadow:0 4px 20px rgba(79,195,247,0.4)}.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.service-card{padding:32px 24px;text-align:center;transition:all 0.3s}.service-card:hover{transform:translateY(-4px)}.service-card h3{font-size:1.2rem;margin-bottom:12px;color:var(--text-primary)}.service-card p{color:var(--text-secondary);font-size:0.9rem;line-height:1.7}.partners-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.partner-item{padding:28px 20px;text-align:center;font-weight:600;color:var(--text-primary);font-size:1rem;transition:all 0.3s;cursor:default}.partner-item:hover{transform:translateY(-4px);background:var(--accent);color:#fff}.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.case-card{padding:28px 24px;transition:all 0.3s}.case-card:hover{transform:translateY(-4px)}.case-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;flex-wrap:wrap;gap:8px}.case-header h3{font-size:1.1rem;color:var(--text-primary)}.case-tag{background:var(--accent);color:#fff;padding:4px 12px;border-radius:20px;font-size:0.8rem;font-weight:600}.case-card p{color:var(--text-secondary);font-size:0.9rem;line-height:1.7}.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.testimonial-card{padding:32px 24px;text-align:center;transition:all 0.3s}.testimonial-card:hover{transform:translateY(-4px)}.testimonial-card .stars{color:#ffc107;font-size:1.2rem;margin-bottom:16px;letter-spacing:4px}.testimonial-card p{color:var(--text-secondary);font-size:0.95rem;line-height:1.8;margin-bottom:16px;font-style:italic}.testimonial-author strong{display:block;color:var(--text-primary);font-size:1rem}.testimonial-author span{color:var(--text-secondary);font-size:0.85rem}.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.news-card{padding:28px 24px;transition:all 0.3s}.news-card:hover{transform:translateY(-4px)}.news-card time{display:block;font-size:0.85rem;color:var(--accent);margin-bottom:8px;font-weight:600}.news-card h3{font-size:1.1rem;margin-bottom:12px;color:var(--text-primary)}.news-card p{color:var(--text-secondary);font-size:0.9rem;line-height:1.7;margin-bottom:12px}.read-more{color:var(--accent);text-decoration:none;font-weight:600;font-size:0.9rem;transition:color 0.3s}.read-more:hover{color:var(--accent-dark)}.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}.faq-item{padding:0;overflow:hidden;transition:all 0.3s}.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:20px 24px;background:none;border:none;cursor:pointer;font-size:1rem;font-weight:600;color:var(--text-primary);text-align:left;transition:all 0.3s}.faq-question:hover{color:var(--accent)}.faq-icon{transition:transform 0.3s;flex-shrink:0}.faq-item.active .faq-icon{transform:rotate(180deg)}.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.4s ease;padding:0 24px}.faq-item.active .faq-answer{max-height:300px;padding:0 24px 20px}.faq-answer div{color:var(--text-secondary);font-size:0.95rem;line-height:1.7}.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:900px;margin:0 auto}.step{padding:28px 20px;text-align:center;transition:all 0.3s;position:relative}.step:hover{transform:translateY(-4px)}.step-number{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:700;margin:0 auto 12px}.step div{color:var(--text-primary);font-size:0.95rem;line-height:1.6}.articles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.article-card{padding:28px 24px;transition:all 0.3s}.article-card:hover{transform:translateY(-4px)}.article-card h3{font-size:1.1rem;margin-bottom:12px;color:var(--text-primary)}.article-card p{color:var(--text-secondary);font-size:0.9rem;line-height:1.7;margin-bottom:12px}.stats-section{background:linear-gradient(135deg,#0a1628,#1a2a4a);padding:60px 0;margin:0}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.stat-item{padding:32px 20px;text-align:center;background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.1);border-radius:var(--radius);transition:all 0.3s}.stat-item:hover{transform:translateY(-4px);background:rgba(255,255,255,0.12)}.stat-number{display:block;font-size:2.8rem;font-weight:800;color:#fff;margin-bottom:8px;font-variant-numeric:tabular-nums}.stat-label{color:rgba(255,255,255,0.75);font-size:1rem;font-weight:500}.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.team-card{padding:32px 24px;text-align:center;transition:all 0.3s}.team-card:hover{transform:translateY(-4px)}.team-avatar{width:80px;height:80px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:2rem;color:#fff;font-weight:700}.team-card h3{font-size:1.2rem;color:var(--text-primary);margin-bottom:4px}.team-card span{display:block;color:var(--accent);font-size:0.9rem;font-weight:600;margin-bottom:12px}.team-card p{color:var(--text-secondary);font-size:0.9rem;line-height:1.7}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}.contact-info{padding:32px;display:flex;flex-direction:column;gap:20px}.info-item{display:flex;align-items:center;gap:12px;color:var(--text-primary);font-size:0.95rem}.info-item svg{flex-shrink:0;color:var(--accent)}.contact-form{padding:32px}.contact-form form{display:flex;flex-direction:column;gap:16px}.contact-form input,.contact-form textarea{padding:12px 16px;border:1px solid var(--glass-border);border-radius:8px;background:var(--bg-primary);color:var(--text-primary);font-size:1rem;transition:border-color 0.3s}.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--accent)}.contact-form textarea{resize:vertical;min-height:120px}.contact-form .btn-primary{border:none;cursor:pointer;text-align:center}.site-footer{background:var(--footer-bg);color:var(--footer-text);padding:60px 0 0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.1)}.footer-col h4{color:#fff;font-size:1.1rem;margin-bottom:16px}.footer-col p{font-size:0.9rem;line-height:1.7;color:var(--footer-text)}.footer-social{display:flex;gap:12px;margin-top:16px}.footer-social a{color:var(--footer-text);transition:color 0.3s;display:flex;align-items:center}.footer-social a:hover{color:var(--accent)}.footer-col ul{list-style:none;padding:0}.footer-col ul li{margin-bottom:8px}.footer-col ul a{color:var(--footer-text);text-decoration:none;font-size:0.9rem;transition:color 0.3s}.footer-col ul a:hover{color:var(--accent)}.footer-bottom{padding:24px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}.footer-legal p{font-size:0.85rem;margin-bottom:4px;color:var(--footer-text)}.footer-security{display:flex;gap:16px;font-size:0.85rem;color:var(--accent)}.back-to-top{position:fixed;bottom:30px;right:30px;width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(79,195,247,0.4);opacity:0;visibility:hidden;transform:translateY(20px);transition:all 0.3s;z-index:999}.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover{transform:translateY(-4px)}@media (max-width:1024px){.about-grid,.products-grid,.advantages-grid,.solutions-grid,.service-grid,.partners-grid,.cases-grid,.testimonials-grid,.news-grid,.articles-grid,.team-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.howto-steps{grid-template-columns:repeat(2,1fr)}.contact-grid{grid-template-columns:1fr}}@media (max-width:768px){.main-nav{display:none}.mobile-menu-toggle{display:flex}.about-grid,.products-grid,.advantages-grid,.solutions-grid,.service-grid,.partners-grid,.cases-grid,.testimonials-grid,.news-grid,.articles-grid,.team-grid,.stats-grid,.howto-steps{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.slide-content h1,.slide-content h2{font-size:2rem}.section-header h2{font-size:1.8rem}.hero{padding-top:60px}.header-container{height:60px}.contact-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;text-align:center}}@media (max-width:480px){.slide-content h1,.slide-content h2{font-size:1.6rem}.hero-cta{flex-direction:column;align-items:center}.btn-primary,.btn-secondary{width:100%;text-align:center}.section-header h2{font-size:1.5rem}.container{padding:0 16px}section{padding:48px 0}}.mobile-menu-open .main-nav{display:flex;position:fixed;top:60px;left:0;right:0;background:var(--nav-bg);backdrop-filter:blur(20px);flex-direction:column;padding:20px;border-bottom:1px solid var(--glass-border);z-index:999}.mobile-menu-open .main-nav ul{flex-direction:column;gap:4px}.mobile-menu-open .main-nav .nav-link{padding:12px 16px;font-size:1.1rem}.fade-in{opacity:0;transform:translateY(30px);transition:opacity 0.6s ease,transform 0.6s ease}.fade-in.visible{opacity:1;transform:translateY(0)}