:root{--color-primary:#2a32e3;--color-primary-dark:#181d9e;--color-primary-light:#5f65f0;--color-accent:#fe7809;--color-accent-hover:#d46200;--color-text:#333;--color-text-light:#666;--color-bg:#fff;--color-bg-alt:#f5f7fa;--color-bg-dark:#282fb0;--color-border:#e0e4e8;--color-white:#fff;--font-family:"Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;--max-width:1720px;--header-height:56px;--top-bar-height:calc(var(--header-height)*2);--total-header-height:calc(var(--top-bar-height) + var(--header-height));--transition-speed:.3s;--radius:8px;--shadow-sm:0 2px 8px #00000014;--shadow-md:0 4px 20px #0000001f;--shadow-lg:0 8px 40px #00000029}html.top-bar-hidden{--total-header-height:var(--header-height)}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-family);color:var(--color-text);background:var(--color-bg);margin:0;padding-top:0;line-height:1.6}a{color:inherit;text-decoration:none}ul{list-style:none}img{max-width:100%;display:block}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 60px}.section{min-height:calc(100vh - var(--total-header-height));box-sizing:border-box;scroll-margin-top:var(--total-header-height);flex-direction:column;justify-content:center;padding:80px 0;display:flex}@media (width>=768px){html:has(.homepage-snap-container){--total-header-height:var(--header-height,56px);scroll-snap-type:y mandatory;scroll-padding-top:0}html:has(.homepage-snap-container) #carousel{padding-top:calc(var(--top-bar-height) + var(--header-height));scroll-snap-align:start;scroll-margin-top:0}html:has(.homepage-snap-container) #about-intro{scroll-snap-align:start;scroll-snap-stop:always;scroll-margin-top:var(--header-height,56px)}html:has(.homepage-snap-container) #about-video{scroll-snap-align:start;scroll-snap-stop:always;scroll-margin-top:var(--header-height,56px)}html:has(.homepage-snap-container) #articles{scroll-snap-align:start;scroll-snap-stop:always;scroll-margin-top:var(--header-height,56px)}html:has(.homepage-snap-container) #certificates{scroll-snap-align:start;scroll-snap-stop:always;scroll-margin-top:var(--header-height,56px)}html:has(.homepage-snap-container) #products{scroll-snap-align:start;scroll-snap-stop:always;scroll-margin-top:var(--header-height,56px)}html:has(.homepage-snap-container) #solutions{scroll-snap-align:start;scroll-snap-stop:always;scroll-margin-top:var(--header-height,56px)}html:has(.homepage-snap-container) .article-categories-section{scroll-snap-align:start;scroll-snap-stop:always;scroll-margin-top:var(--header-height,56px)}html:has(.homepage-snap-container) .snap-section{scroll-snap-align:start;scroll-snap-stop:always;scroll-margin-top:var(--header-height,56px)}:is(body:has(.homepage-snap-container) #footer,html:has(.homepage-snap-container) #footer){scroll-snap-align:end;scroll-snap-stop:normal}}.section-alt{background:var(--color-bg-alt)}.section-header{text-align:center;margin-bottom:50px}.section-title{color:var(--color-primary);padding-bottom:15px;font-size:2rem;font-weight:700;display:inline-block;position:relative}.section-title:after{content:"";background:var(--color-accent);border-radius:2px;width:60px;height:3px;position:absolute;bottom:0;left:50%;transform:translate(-50%)}.section-subtitle{color:var(--color-text-light);max-width:600px;margin-top:15px;margin-left:auto;margin-right:auto;font-size:1.05rem}.top-bar{height:var(--top-bar-height);z-index:1001;color:#1e293b;box-sizing:border-box;will-change:transform;opacity:1;visibility:visible;background:#fff;border-bottom:1px solid #e2e8f0;font-size:14.5px;transition:transform .35s cubic-bezier(.4,0,.2,1),opacity linear,visibility linear;position:fixed;top:0;left:0;right:0;transform:translateY(0);box-shadow:0 1px 3px #0000000a}.top-bar.top-bar-hidden{opacity:0;visibility:hidden;pointer-events:none;transition:transform .35s cubic-bezier(.4,0,.2,1),opacity 0s linear .35s,visibility 0s linear .35s;transform:translateY(-100%)}.top-bar-container{justify-content:space-between;align-items:center;gap:16px;max-width:100%;height:100%;padding:0 60px;display:flex}.top-bar-brand{flex-shrink:0}.brand-link,.top-bar-brand{align-items:center;display:flex}.brand-link{gap:10px;text-decoration:none}.brand-logo-img{-o-object-fit:contain;object-fit:contain;width:auto;height:66px;display:block}.brand-company-title{color:#1e293b;letter-spacing:.5px;white-space:nowrap;font-family:PingFang SC,Microsoft YaHei,sans-serif;font-size:1.45rem;font-weight:700}.brand-company-title.title-en{letter-spacing:.2px;font-size:1.15rem}.top-bar-center{flex-shrink:1;align-items:center;gap:16px;min-width:0;display:flex}.top-bar-divider{background-color:#cbd5e1;border-radius:1px;width:1.5px;height:52px}.top-bar-badge{white-space:nowrap;background:0 0;border:none;align-items:center;gap:12px;padding:0;display:flex}.badge-torch-img{-o-object-fit:contain;object-fit:contain;flex-shrink:0;width:auto;height:64px}.top-bar-badge-text{white-space:nowrap;flex-direction:column;line-height:1.35;display:flex}.badge-title{color:#1e40af;letter-spacing:.5px;white-space:nowrap;font-size:1.25rem;font-weight:700}.badge-title.badge-title-en{letter-spacing:.1px;font-size:1.02rem}.badge-subtitle{color:#64748b;white-space:nowrap;font-size:.96rem;font-weight:500}.badge-subtitle.badge-sub-en{font-size:.84rem}.top-bar-right{flex-shrink:0;align-items:center;display:flex}.service-hotline-box{white-space:nowrap;align-items:center;gap:14px;display:flex}.hotline-icon-wrap{color:#1e40af;border:2px solid #1e40af;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;font-size:1.35rem;display:flex}.hotline-text-wrap{white-space:nowrap;flex-direction:column;line-height:1.2;display:flex}.hotline-label{color:#64748b;letter-spacing:.2px;margin-bottom:2px;font-size:.76rem;font-weight:600}.hotline-numbers{flex-direction:column;align-items:flex-start;gap:2px;display:flex}.hotline-number{color:#1e40af;letter-spacing:.5px;transition:color var(--transition-speed);align-items:center;gap:6px;font-family:Arial,Segoe UI,sans-serif;font-size:1.05rem;font-weight:800;line-height:1.25;text-decoration:none;display:inline-flex}.hotline-tag{color:#1e40af;letter-spacing:0;background:#eff6ff;border:1px solid #bfdbfe;border-radius:3px;padding:0 4px;font-size:.72rem;font-weight:600;line-height:1.4}.hotline-number:hover{color:var(--color-accent)}.hotline-number:hover .hotline-tag{border-color:var(--color-accent);color:var(--color-accent)}.navbar{top:var(--top-bar-height);height:var(--header-height);-webkit-backdrop-filter:blur(10px);z-index:1000;transition:top .35s cubic-bezier(.4,0,.2,1),background var(--transition-speed),box-shadow var(--transition-speed);will-change:top;background:#282fb0;position:fixed;left:0;right:0;box-shadow:0 4px 16px #282fb040}.navbar.top-bar-hidden{top:0;box-shadow:0 6px 20px #0003}.navbar.scrolled{background:#282fb0fa;box-shadow:0 6px 24px #282fb059}.nav-container{justify-content:space-between;gap:16px;max-width:100%;height:100%;padding:0 60px;position:relative}.nav-container,.nav-logo{align-items:center;display:flex}.nav-logo{gap:8px}.logo-icon{align-items:center;font-size:1.6rem;line-height:1;display:flex}.logo-icon img{width:auto;height:48px;display:block}.logo-text{color:var(--color-primary);letter-spacing:1px;font-size:1.5rem;font-weight:800}.logo-en{color:var(--color-text-light);font-size:.75rem;font-weight:400;line-height:1;display:block}.nav-menu{align-items:center;gap:24px;margin:0;padding:0;display:flex}@media (width>=769px){.nav-menu{position:static;transform:none}}.nav-menu a{color:#fff;white-space:nowrap;transition:color var(--transition-speed);padding:6px 0;font-size:1.02rem;font-weight:600;position:relative}.nav-menu a:after{content:"";background:var(--color-accent);width:0;height:2px;transition:width var(--transition-speed);position:absolute;bottom:0;left:0}.nav-menu a:hover{color:var(--color-accent)}.nav-menu a:hover:after{width:100%}.nav-toggle{cursor:pointer;background:0 0;border:none;flex-direction:column;gap:5px;padding:8px;display:none}.hamburger-bar{width:26px;height:3px;transition:transform var(--transition-speed),opacity var(--transition-speed);background:#fff;border-radius:2px;display:block}.nav-toggle.active .hamburger-bar:first-child{transform:rotate(45deg)translate(5px,6px)}.nav-toggle.active .hamburger-bar:nth-child(2){opacity:0}.nav-toggle.active .hamburger-bar:nth-child(3){transform:rotate(-45deg)translate(5px,-6px)}.nav-search{flex-shrink:0;margin-left:18px;position:relative}.nav-search,.search-form{align-items:center;display:flex}.search-form{transition:border-color var(--transition-speed),box-shadow var(--transition-speed);background:#ffffff1f;border:1.5px solid #ffffff40;border-radius:0;overflow:hidden}.search-form:focus-within{border-color:var(--color-accent);background:#fff3;box-shadow:0 0 0 3px #fe780940}.search-input{color:#fff;width:160px;transition:width var(--transition-speed);font-size:.88rem;font-family:var(--font-family);background:0 0;border:none;outline:none;padding:6px 12px}.search-input::placeholder{color:#ffffffb3}.search-input:focus{width:200px}.search-input::-webkit-search-cancel-button{-webkit-appearance:none}.search-btn{background:var(--color-accent);color:#fff;cursor:pointer;width:34px;height:34px;transition:background var(--transition-speed);border:none;flex-shrink:0;justify-content:center;align-items:center;font-size:.82rem;display:flex}.search-btn:hover{background:var(--color-accent-hover)}.search-dropdown{background:var(--color-white);width:280px;box-shadow:var(--shadow-md);border:1px solid var(--color-border);z-index:999;border-radius:0;max-height:320px;animation:.2s searchDropIn;display:none;position:absolute;top:calc(100% + 8px);right:0;overflow-y:auto}.search-dropdown.open{display:block}@keyframes searchDropIn{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.search-result-item{cursor:pointer;border-bottom:1px solid var(--color-border);transition:background var(--transition-speed);padding:10px 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100%;justify-content:center;align-items:center;width:100%;height:100%;transition:opacity .8s ease-in-out;display:flex;position:absolute;top:0;left:0}.carousel-slide.active{opacity:1}.carousel-slide{background-color:#fff}.carousel-slide:before{display:none}.carousel-content{z-index:2;text-align:center;color:var(--color-white);max-width:800px;padding:0 20px;position:relative}.carousel-content h2{letter-spacing:2px;text-shadow:0 2px 10px #0000004d;margin-bottom:16px;font-size:2.8rem;font-weight:800}.carousel-content p{opacity:.9;font-size:1.2rem;line-height:1.8}.carousel-arrow{z-index:3;color:#fff;cursor:pointer;width:48px;height:48px;transition:background var(--transition-speed);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#00000040;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:1.2rem;display:flex;position:absolute;top:50%;transform:translateY(-50%)}.carousel-arrow:hover{background:#0000008c}.carousel-prev{left:20px}.carousel-next{right:20px}.carousel-dots{z-index:3;gap:10px;display:flex;position:absolute;bottom:24px;left:50%;transform:translate(-50%)}.carousel-dot{cursor:pointer;width:12px;height:12px;transition:all var(--transition-speed);background:0 0;border:2px solid #fff9;border-radius:50%}.carousel-dot.active{background:var(--color-accent);border-color:var(--color-accent);transform:scale(1.15)}.product-grid{grid-template-columns:repeat(4,1fr);gap:24px;display:grid}.product-card{background:var(--color-white);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform var(--transition-speed),box-shadow var(--transition-speed);overflow:hidden}.product-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-6px)}.product-image{background:var(--color-bg-alt);height:220px;min-height:220px;color:var(--color-text-light);justify-content:center;align-items:center;font-size:.9rem;display:flex;overflow:hidden}.product-image.image-fallback:after{content:attr(data-label);color:#94a3b8;font-size:1.1rem;font-weight:600}.product-image .img-placeholder{color:var(--color-primary-light);opacity:.3;font-size:3rem}.product-info{padding:24px}.product-info h3{color:var(--color-primary);margin-bottom:10px;font-size:1.2rem;font-weight:700}.product-info>p{color:var(--color-text-light);margin-bottom:14px;font-size:.92rem;line-height:1.7}.product-features{flex-wrap:wrap;gap:6px;display:flex}.product-features li{color:var(--color-primary-light);white-space:nowrap;background:#1a3a5c14;border-radius:20px;padding:3px 10px;font-size:.82rem}.solutions-grid{grid-template-columns:repeat(4,1fr);gap:24px;display:grid}.solution-card{background:var(--color-white);border-radius:var(--radius);text-align:center;box-shadow:var(--shadow-sm);transition:transform var(--transition-speed),box-shadow var(--transition-speed);border:1px solid var(--color-border);padding:32px 24px}.solution-card:hover{box-shadow:var(--shadow-md);border-color:var(--color-accent);transform:translateY(-4px)}.solution-card.has-bg{color:#fff;background-position:50%;background-size:cover;border-color:#0000;flex-direction:column;justify-content:center;min-height:220px;display:flex;position:relative}.solution-card.has-bg:before{content:"";border-radius:inherit;z-index:0;background:#0f2640a6;position:absolute;inset:0}.solution-card.has-bg .solution-icon,.solution-card.has-bg h3,.solution-card.has-bg p{z-index:1;color:#fff;position:relative}.solution-icon{margin-bottom:16px;font-size:2.8rem;display:block}.solution-card h3{color:var(--color-primary);margin-bottom:10px;font-size:1.05rem;font-weight:700}.solution-card p{color:var(--color-text-light);font-size:.88rem;line-height:1.7}.about-fullscreen-text-wrapper{justify-content:center;align-items:center;width:100%;min-height:auto;padding:0 0 clamp(16px,2.5vh,24px);display:flex}.about-content{width:100%;display:block}.about-text-card{background:#fff;border:1px solid #e2e8f0cc;border-radius:12px;padding:32px 48px;position:relative;box-shadow:0 8px 24px #0f172a0d,0 1px 3px #0f172a05}.about-text p{color:#334155;text-indent:2em;letter-spacing:.3px;margin-bottom:16px;font-size:1.05rem;line-height:2}.about-text p:last-child{margin-bottom:0}.about-mission{background:var(--color-primary);color:var(--color-white);border-radius:var(--radius);margin-bottom:24px;padding:30px}.about-mission .mission-item{color:#ffffffe6;align-items:baseline;gap:6px;font-size:1rem;line-height:1.7;display:flex}.about-mission .mission-item+.mission-item{margin-top:12px}.about-mission .mission-icon{flex-shrink:0}.about-mission .mission-item strong{color:var(--color-accent);flex-shrink:0}.about-sidebar h4{color:var(--color-primary);margin-bottom:14px;font-size:1rem;font-weight:700}.values-list{margin-bottom:28px;list-style:none}.values-list li{border-bottom:1px solid var(--color-border);color:var(--color-text);padding:10px 0;font-size:.92rem}.values-list li strong{color:var(--color-accent);margin-right:6px}.honors-list{flex-wrap:wrap;gap:8px;display:flex}.honors-list li{color:var(--color-primary-light);background:#1a3a5c0f;border:1px solid #1a3a5c1f;border-radius:20px;padding:5px 12px;font-size:.82rem}.about-video{border-radius:var(--radius);box-shadow:var(--shadow-lg);aspect-ratio:16/9;background:#000;justify-content:center;align-items:center;width:100%;margin-bottom:50px;display:flex;overflow:hidden}.about-video video{-o-object-fit:cover;object-fit:cover;background:#000;width:100%;height:100%;display:block}#about.section{padding-bottom:50px!important}.certificates-section{text-align:center;width:100%;margin-top:clamp(20px,3vh,32px);margin-bottom:0}.cert-title{color:var(--color-primary);margin-bottom:clamp(16px,2.5vh,28px);padding-bottom:10px;font-size:clamp(1.6rem,2.2vw,2.1rem);font-weight:700;display:inline-block;position:relative}.cert-title:after{content:"";background:var(--color-accent);border-radius:2px;width:60px;height:3px;position:absolute;bottom:0;left:50%;transform:translate(-50%)}.cert-carousel{width:100%;padding:20px 0;position:relative;overflow:hidden}.cert-arrow{z-index:10;color:var(--color-primary);cursor:pointer;background:#fffffff2;border:1px solid #00000014;border-radius:50%;justify-content:center;align-items:center;width:54px;height:54px;font-size:1.3rem;transition:all .25s;display:flex;position:absolute;top:50%;transform:translateY(-50%);box-shadow:0 4px 16px #00000026}.cert-arrow:hover{background:var(--color-accent);color:#fff;transform:translateY(-50%)scale(1.08);box-shadow:0 6px 24px #fe780959}.cert-prev{left:15px}.cert-next{right:15px}.cert-track{width:100%;height:640px;position:relative}.cert-card{opacity:0;pointer-events:none;visibility:hidden;width:360px;transition:all .55s cubic-bezier(.25,.46,.45,.94);position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)scale(.3)}.cert-card.cert-center{opacity:1;z-index:5;pointer-events:auto;visibility:visible;transform:translate(-50%,-50%)scale(1.15)}.cert-card.cert-left{transform:translate(calc(-50% - 340px),-50%)scale(.85)}.cert-card.cert-left,.cert-card.cert-right{opacity:.8;z-index:3;pointer-events:auto;visibility:visible}.cert-card.cert-right{transform:translate(calc(340px - 50%),-50%)scale(.85)}.cert-card.cert-far-left{opacity:.45;z-index:1;visibility:visible;transform:translate(calc(-50% - 620px),-50%)scale(.68)}.cert-card.cert-far-right{opacity:.45;z-index:1;visibility:visible;transform:translate(calc(620px - 50%),-50%)scale(.68)}.cert-card.cert-hidden{opacity:0;visibility:hidden;pointer-events:none;transform:translate(-50%,-50%)scale(.2)}.cert-img-wrap{aspect-ratio:3/4;background:#fff;border:1px solid #e2e8f0;border-radius:12px;justify-content:center;align-items:center;display:flex;overflow:hidden;box-shadow:0 10px 30px #00000024}.cert-img-wrap img{-o-object-fit:contain;object-fit:contain;width:100%;height:100%;padding:10px}.cert-name{color:var(--color-text-light);margin-top:20px;font-size:.88rem;display:block}.cert-dots{justify-content:center;gap:10px;margin-top:20px;margin-bottom:24px;display:flex}.cert-dot{cursor:pointer;background:#cbd5e1;border-radius:50%;width:10px;height:10px;transition:background .3s}.cert-dot.active{background:var(--color-accent)}#footer{background:var(--color-bg-dark);color:#ffffffd9;padding:36px 0 0}.footer-grid{border-bottom:1px solid #ffffff1a;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;display:grid}.footer-brand h3{color:var(--color-white);margin-bottom:6px;font-size:1.3rem;font-weight:800}.footer-brand .logo-en{color:#ffffff80;margin-bottom:16px}.footer-brand p{color:#ffffffa6;font-size:.88rem;line-height:1.8}.footer-col h4{color:var(--color-white);margin-bottom:18px;padding-bottom:10px;font-size:1rem;font-weight:700;position:relative}.footer-col h4:after{content:"";background:var(--color-accent);width:30px;height:2px;position:absolute;bottom:0;left:0}.footer-col ul li{margin-bottom:10px}.footer-col ul li a{color:#fff9;transition:color var(--transition-speed);font-size:.88rem}.footer-col ul li a:hover{color:var(--color-accent)}.footer-col .contact-item{color:#fff9;align-items:flex-start;gap:10px;margin-bottom:12px;font-size:.88rem;display:flex}.footer-col .contact-item i{color:var(--color-accent);width:16px;margin-top:4px}.footer-col .contact-item .icp-link{color:#fff9;text-decoration:none;transition:color .2s}.footer-col .contact-item .icp-link:hover{color:var(--color-accent)}.footer-col .contact-item.qr-item{cursor:pointer;position:relative}.footer-col .contact-item.qr-item .qr-popup{-o-object-fit:contain;object-fit:contain;z-index:100;background:#fff;border-radius:8px;width:150px;height:150px;margin-bottom:10px;padding:8px;display:none;position:absolute;bottom:100%;left:50%;transform:translate(-50%);box-shadow:0 4px 20px #0000004d}.footer-col .contact-item.qr-item:hover .qr-popup{display:block}.footer-bottom{text-align:center;color:#fff6;padding:20px 0;font-size:.84rem}.back-to-top{z-index:999;background:var(--color-accent);width:44px;height:44px;color:var(--color-white);cursor:pointer;box-shadow:var(--shadow-md);opacity:0;visibility:hidden;transition:all 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