@keyframes modalIn{0%{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}:root{--primary:#4a9eff;--primary-dark:#1a73e8;--primary-light:#e8f4fd;--primary-gradient:linear-gradient(135deg, #1a73e8, #4fc3f7);--secondary:#64b5f6;--accent:#0288d1;--text-primary:#1a1a2e;--text-secondary:#555;--text-muted:#888;--bg-white:#ffffff;--bg-light:#f5f9ff;--bg-gray:#f0f4f8;--border-color:#e0e8f0;--shadow:0 2px 12px rgba(26, 115, 232, 0.08);--shadow-hover:0 8px 30px rgba(26, 115, 232, 0.15);--radius:8px;--radius-lg:12px;--transition:all 0.3s ease;--max-width:1200px;--header-height:120px}*{margin:0;padding:0;box-sizing:border-box}a img{border:0;outline:0}a{-webkit-tap-highlight-color:transparent;color:var(--primary-dark);text-decoration:none;transition:var(--transition)}html{scroll-behavior:smooth}.section-header h2,body{font-size:17px;color:var(--text-primary)}body{font-size:17px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;background:var(--bg-white);min-height:100vh}.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}a:hover{color:var(--accent)}.product-card-img img,img{max-width:100%;height:auto}.section{padding:80px 0}.section.bg-light{background:var(--bg-light)}.section-header{margin-bottom:50px}.section-header h2{font-size:32px;font-weight:700;margin-bottom:12px;position:relative}.about-content h2::after,.section-header h2::after{content:"";height:3px;background:var(--primary-gradient);border-radius:2px}.section-header h2::after{display:block;width:60px;margin:15px auto 0}.section-header p{color:var(--text-secondary);font-size:16px;margin-top:10px}.section-header,.text-center{text-align:center}.mt-4{margin-top:40px}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:50px;font-size:15px;font-weight:500;cursor:pointer;border:2px solid transparent;transition:var(--transition);text-decoration:none;justify-content:center}.btn-primary{background:var(--primary-gradient);color:#fff!important;border-color:transparent}.btn-primary:hover{box-shadow:0 6px 20px rgba(26,115,232,.35);transform:translateY(-2px)}.btn-outline{background:0 0;color:#fff!important;border-color:rgba(255,255,255,.7)}.btn-outline:hover{background:rgba(255,255,255,.15);border-color:#fff}.btn-sm{padding:8px 18px;font-size:13px}.btn-block{width:100%}.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:#fff;box-shadow:0 2px 20px rgba(0,0,0,.06)}.top-bar{background:var(--primary-dark);font-size:13px;padding:6px 0}.page-banner .breadcrumb a:hover,.top-bar,.top-bar a{color:#fff}.top-bar a:hover{opacity:.85}.header-main{padding:12px 0;background:#fff}.header-main .container,.top-bar .container{display:flex;align-items:center;justify-content:space-between}.logo .logo-text,.logo h1{font-size:22px;font-weight:700;line-height:1.3}.cert-card i,.logo a,.logo a:hover,.logo .logo-text,.logo h1{color:var(--primary-dark)}.nav ul{display:flex;list-style:none;gap:5px}.menu-toggle span,.nav a{display:block;transition:var(--transition)}.nav a{padding:10px 18px;color:var(--text-primary);font-weight:500;font-size:15px;border-radius:var(--radius)}.nav a.active,.nav a:hover{color:var(--primary-dark);background:var(--primary-light)}.menu-toggle{display:none;flex-direction:column;gap:5px;background:0 0;border:0;cursor:pointer;padding:5px}.menu-toggle span{width:26px;height:2.5px;background:var(--text-primary);border-radius:2px}.hero{margin-top:var(--header-height);position:relative;height:580px;overflow:hidden}.hero-slider{height:100%;position:relative}.slide,.slide-bg{width:100%;height:100%}.slide{position:absolute;top:0;left:0;opacity:0;transition:opacity .8s ease}.slide.active{opacity:1}.slide-bg{background-size:cover;background-position:center;position:relative}.slide-overlay{position:absolute;inset:0;background:rgba(0,0,0,.4)}.slide-content{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;color:#fff;z-index:2;width:80%;max-width:800px}.slide-content h2{font-size:44px;font-weight:800;margin-bottom:15px;text-shadow:0 2px 10px rgba(0,0,0,.3)}.slide-content p{font-size:20px;margin-bottom:30px;opacity:.95}.slide-actions{display:flex;gap:15px;justify-content:center}.slider-dots{position:absolute;bottom:25px;left:50%;transform:translateX(-50%);display:flex;gap:8px}.slider-dots span{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer;transition:var(--transition)}.slider-dots span.active{background:#fff;transform:scale(1.2)}.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px}.feature-card{text-align:center;padding:35px 20px;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border-color)}.feature-card:hover,.product-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}.feature-icon{width:70px;height:70px;margin:0 auto 20px;background:var(--primary-light);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:28px;color:var(--primary-dark)}.feature-card h3,.page-banner h1{font-size:18px;margin-bottom:10px}.feature-card p{color:var(--text-secondary);font-size:14px;line-height:1.6}.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.product-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border-color);transition:var(--transition)}.product-card:hover{transform:translateY(-4px)}.product-card-link{color:inherit;display:block}.product-card-link:hover{color:inherit}.product-card-img{aspect-ratio:1/1;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:8px}.product-card-img img{width:100%;height:100%;object-fit:contain;display:block}.product-img-placeholder{font-size:60px;color:var(--primary);opacity:.4}.product-card-body{padding:16px;text-align:center}.product-card-body h3{font-size:16px;margin-bottom:8px;-webkit-line-clamp:1}.product-cas{font-size:13px;color:var(--primary-dark);font-weight:500;margin-bottom:4px}.product-category{font-size:12px;color:var(--text-muted);display:inline-block;background:var(--bg-light);padding:2px 10px;border-radius:20px}.product-purity{font-size:13px;color:var(--text-secondary);margin-top:5px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}.product-card-tags{display:flex;gap:5px;flex-wrap:wrap;margin-top:8px;justify-content:center}.product-card-tags .tag{padding:2px 8px;font-size:11px;line-height:1.4}.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}.news-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border-color);transition:var(--transition)}.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}.news-card-link{color:inherit;display:block}.news-card-link:hover{color:inherit}.news-card-body{padding:25px}.news-date{font-size:13px;color:var(--text-muted)}.news-card-body h3,.news-card-body p,.product-card-body h3{display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden}.news-card-body h3{font-size:18px;margin:10px 0;-webkit-line-clamp:2}.news-card-body p{color:var(--text-secondary);font-size:14px;-webkit-line-clamp:3}.news-read-more{display:inline-flex;align-items:center;gap:5px;color:var(--primary-dark);font-size:14px;font-weight:500;margin-top:12px}.page-banner{margin-top:var(--header-height);background:var(--primary-gradient);padding:60px 0;text-align:center;color:#fff}.page-banner h1{font-size:36px;font-weight:700}.page-banner .breadcrumb a{color:rgba(255,255,255,.8)}.footer-col ul li a,.page-banner .breadcrumb{color:rgba(255,255,255,.7);font-size:14px}.about-section{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;margin-bottom:60px}.about-section.reverse{direction:rtl}.about-section.reverse>*{direction:ltr}.about-content h2{font-size:28px;margin-bottom:20px;position:relative;padding-bottom:12px}.about-content h2::after{position:absolute;bottom:0;left:0;width:50px}.about-content p{color:var(--text-secondary);margin-bottom:12px;font-size:15px;line-height:1.8}.about-image{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-hover)}.cert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;margin-top:30px}.page-btn,.pagination{align-items:center;justify-content:center}.pagination{display:flex;gap:6px;margin-top:30px;flex-wrap:wrap}.page-btn{display:inline-flex;padding:8px 14px;border:1px solid var(--border-color);border-radius:6px;color:var(--text-primary);text-decoration:none;font-size:14px;transition:all .2s;background:var(--bg-white)}.page-btn:hover{border-color:var(--primary);color:var(--primary)}.page-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.page-btn.disabled{opacity:.4;pointer-events:none}.page-ellipsis{padding:0 4px;color:var(--text-muted)}.featured-star{cursor:pointer;font-size:18px;color:#ddd;transition:color .2s;border:0;background:0 0;padding:2px 6px}.featured-star.active,.featured-star:hover{color:#f59e0b}.cert-card{text-align:center}.cert-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}.cert-card i{font-size:48px;margin-bottom:15px}.products-layout{display:grid;grid-template-columns:250px 1fr;gap:30px}.product-search-bar{margin-bottom:30px}.search-form{max-width:600px;margin:0 auto}.search-input-wrapper{display:flex;align-items:center;background:#fff;border:2px solid var(--border-color);border-radius:50px;padding:4px;transition:var(--transition)}.search-input-wrapper:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,115,232,.1)}.search-icon{color:var(--text-muted);padding:0 10px 0 16px;font-size:16px}.search-input{flex:1;border:0;outline:0;padding:12px 5px;font-size:15px;background:0 0}.search-btn{border-radius:50px!important;padding:10px 25px}.search-field-select{border:0;outline:0;background:0 0;padding:12px 4px 12px 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1fr;gap:50px;margin-bottom:50px}.product-detail-img{background:#fff;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;padding:10px;aspect-ratio:1/1;border:1px solid var(--border-color);overflow:hidden}.product-detail-img img{width:100%;height:100%;max-width:100%;max-height:100%;object-fit:contain;display:block}.product-thumbs img:hover{border-color:var(--primary)!important;opacity:.8}.product-img-placeholder-lg{font-size:120px;color:var(--primary);opacity:.3}.product-detail-info h2{font-size:28px;margin-bottom:5px}.product-en-name{color:var(--text-muted);font-size:16px;margin-bottom:20px}.product-params{width:100%;border-collapse:collapse;margin:20px 0}.product-params td{padding:8px 12px;border-bottom:1px solid var(--border-color);font-size:14px}.product-params td:first-child{color:var(--text-muted);width:100px;font-weight:500}.product-tags{margin:15px 0;display:flex;gap:8px;flex-wrap:wrap}.tag{display:inline-block;padding:4px 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var(--border-color);border-radius:var(--radius-lg);margin-bottom:20px;transition:var(--transition)}.news-item:hover{box-shadow:var(--shadow-hover);transform:translateX(5px)}.news-item-link{display:block;padding:25px;color:inherit}.news-item-link:hover{color:inherit}.news-item-header{display:flex;gap:15px;font-size:13px;color:var(--text-muted);margin-bottom:10px}.news-item-cat{background:var(--primary-light);color:var(--primary-dark);padding:1px 10px;border-radius:10px}.news-item-title{font-size:20px;margin-bottom:10px}.contact-card p,.news-item-summary{color:var(--text-secondary);font-size:14px}.contact-cards,.contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:50px}.contact-cards{gap:15px;margin-top:30px}.contact-card{text-align:center;padding:25px 15px;background:#fff;border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow);transition:var(--transition)}.contact-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}.contact-card-icon{width:50px;height:50px;margin:0 auto 12px;background:var(--primary-light);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--primary-dark)}.contact-card h3{font-size:15px;margin-bottom:8px}.contact-card p{font-size:13px}.contact-card p a{font-size:16px;font-weight:600}.contact-form,.contact-form-section{background:#fff;padding:30px;border-radius:var(--radius-lg);border:1px solid var(--border-color);box-shadow:var(--shadow)}.contact-form h2{margin-bottom:20px}.contact-form-section{height:fit-content}.contact-form-section h2,.footer-col ul li{margin-bottom:8px}.contact-form-desc{font-size:13px;color:var(--text-secondary);margin:0}.inquiry-form{margin-top:20px}.inquiry-form .form-group{margin-bottom:16px}.inquiry-form .form-group 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i{font-size:60px;color:var(--text-muted);opacity:.3;margin-bottom:20px}.footer{background:#1a1a2e;color:rgba(255,255,255,.8);padding-top:60px;padding-bottom:80px}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}.footer-col h3{color:#fff;font-size:18px;margin-bottom:20px;position:relative;padding-bottom:10px}.footer-col h3::after{content:"";position:absolute;bottom:0;left:0;width:30px;height:2px;background:var(--primary)}.footer-col p{font-size:14px;line-height:1.8}.footer-col ul{list-style:none}.footer-col ul li a:hover{color:var(--primary);padding-left:3px}.contact-list li{display:flex;align-items:center;gap:8px;font-size:14px}.contact-list i{width:16px;color:var(--primary)}.footer-qr{margin-top:15px;padding:12px;background:rgba(255,255,255,.05);border-radius:var(--radius);text-align:center}.footer-qr 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var(--border-color)}.wechat-copy-box span{font-size:20px;font-weight:700;color:var(--text-primary);letter-spacing:1px}.copy-btn{background:var(--primary-dark);color:#fff;border:0;padding:8px 16px;border-radius:var(--radius);cursor:pointer;font-size:13px;transition:var(--transition)}.copy-btn:hover{background:var(--accent)}@media (max-width:1024px){.features-grid{grid-template-columns:repeat(2,1fr)}.product-grid{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){:root{--header-height:70px}.menu-toggle{display:flex}.nav{position:absolute;top:100%;left:0;right:0;background:#fff;box-shadow:0 5px 20px rgba(0,0,0,.1);padding:10px 20px}.nav.active{display:block}.nav ul{flex-direction:column}.nav a{padding:12px 0;border-bottom:1px solid var(--border-color)}.nav,.top-bar{display:none}.logo .logo-text,.logo h1{font-size:17px}.hero{height:400px}.slide-content h2{font-size:28px}.slide-content p{font-size:16px}.slide-actions{flex-direction:column;align-items:center}.section{padding:50px 0}.section-header h2{font-size:24px}.features-grid,.product-grid{grid-template-columns:repeat(2,1fr);gap:15px}.product-grid{gap:12px}.news-grid,.products-layout{grid-template-columns:1fr}.sidebar{display:none}.about-section{gap:30px}.about-section.reverse{direction:ltr}.about-section,.contact-layout{grid-template-columns:1fr}.contact-cards{grid-template-columns:1fr 1fr}.product-detail{grid-template-columns:1fr;gap:30px}.footer{padding-bottom:70px}.footer-grid{grid-template-columns:1fr 1fr;gap:20px}.mobile-bottom-bar{display:flex;gap:8px}.cert-grid{grid-template-columns:1fr}.page-banner{padding:40px 0}.page-banner h1{font-size:26px}}@media (max-width:480px){.product-grid{grid-template-columns:repeat(2,1fr);gap:10px}.contact-cards,.features-grid,.footer-grid{grid-template-columns:1fr}.product-card-img{aspect-ratio:1/1}.product-card-body{padding:10px}.product-card-body h3{font-size:16px}}.footer-qr-row{display:flex;justify-content:center;gap:60px;padding:30px 0 0;border-top:1px solid rgba(255,255,255,.1);margin-top:30px;flex-wrap:wrap}.footer-qr-item{text-align:center}.footer-qr-img,.footer-qr-placeholder{width:130px;height:130px;border-radius:8px}.footer-qr-img{object-fit:contain;background:#fff;padding:8px;margin-bottom:10px}.footer-qr-placeholder{border:1px dashed rgba(255,255,255,.3);display:flex;align-items:center;justify-content:center;margin:0 auto 10px;font-size:12px;color:rgba(255,255,255,.3)}.footer-qr-label{font-size:13px;color:rgba(255,255,255,.8)}.product-thumbs{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}.product-thumb{width:55px;height:55px;object-fit:cover;border-radius:6px;border:1px solid var(--border-color);cursor:pointer;padding:3px;background:#fff;transition:border-color .2s}.product-thumb.active{border:2px solid var(--primary)}.cert-card-img{max-width:100%;max-height:200px;object-fit:contain;margin-bottom:12px;border-radius:4px}.contact-card-wide{grid-column:span 2}.contact-qr-img{max-width:180px;border-radius:8px;margin-top:8px}.contact-sidebar-btn{width:100%;margin-top:10px}.wechat-inline-btn{color:#1a73e8!important;border-color:#1a73e8!important}.btn-mall{background:linear-gradient(135deg,#ff6b35,#e74c3c);color:#fff!important;border:0}.btn-mall:hover{box-shadow:0 6px 20px rgba(231,76,60,.4);transform:translateY(-2px)}@media (max-width:768px){.contact-card-wide{grid-column:span 1}.footer-qr-row{gap:30px}}.product-card-img picture,.product-detail-img picture{display:block;width:100%;height:100%}/* Product Image Arrows */
.product-detail-imgs{position:relative}.img-nav{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.9);border:1px solid var(--border-color);color:var(--primary-dark);font-size:16px;cursor:pointer;z-index:10;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,0,0,.15);transition:all .2s}.img-nav:hover{background:var(--primary-dark);color:#fff;border-color:var(--primary-dark)}.img-nav.prev{left:10px}.img-nav.next{right:10px}.img-nav i{pointer-events:none}@media (max-width:768px){.img-nav{display:none}}
/* Hero Arrows */
.hero-nav-arrows{position:absolute;top:50%;transform:translateY(-50%);width:100%;left:0;right:0;z-index:10;display:flex;justify-content:space-between;padding:0 20px;pointer-events:none}.hero-arrow{width:50px;height:50px;border-radius:50%;background:rgba(255,255,255,.2);border:2px solid rgba(255,255,255,.5);color:#fff;font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px);transition:all .3s;pointer-events:auto}.hero-arrow:hover{background:rgba(255,255,255,.4);border-color:#fff;transform:scale(1.1)}.hero-arrow i{pointer-events:none}@media (max-width:768px){.hero-nav-arrows{display:none}}
/* Swipe */
.swipe-anim{transition:transform .2s ease,opacity .2s ease}
.product-detail-img-wrap{position:relative}
/* Desktop-only */
@media (max-width:768px){.desktop-only{display:none!important}}
/* QQ button */
.qq-btn{background:linear-gradient(135deg,#e53935,#ff6f00)!important;color:#fff!important}