:root{--color-primary:#1a1a1a;--color-accent-gold:#d4af37;--color-accent-blue:#06c;--color-white:#fff;--color-gray-light:#f5f5f5;--color-gray-medium:#e0e0e0;--color-gray-dark:#666;--font-heading:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-body:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--shadow-neumorphic:8px 8px 16px #0000001a,-8px -8px 16px #ffffffe6;--shadow-neumorphic-inset:inset 4px 4px 8px #0000001a,inset -4px -4px 8px #ffffffe6;--shadow-card:0 8px 32px #00000014}.mkbox-premium *{box-sizing:border-box;margin:0;padding:0}.mkbox-premium{font-family:var(--font-body);color:var(--color-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6;overflow-x:hidden}.mkbox-premium .mkbox-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}@media (max-width:768px){.mkbox-premium .mkbox-container{padding:0 16px}}.fade-in-up,.fade-in-left,.fade-in-right{opacity:0;transition:var(--transition-smooth)}.fade-in-up{transform:translateY(30px)}.fade-in-left{transform:translate(-30px)}.fade-in-right{transform:translate(30px)}.fade-in-up.visible,.fade-in-left.visible,.fade-in-right.visible{opacity:1;transform:translate(0)}.premium-nav{z-index:1000;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);transition:var(--transition-smooth);background:#fffc;border-bottom:1px solid #0000000d;position:fixed;top:0;left:0;right:0}.premium-nav.scrolled{background:#fffffff2;box-shadow:0 4px 20px #00000014}.nav-content{justify-content:space-between;align-items:center;padding:20px 0;display:flex}.logo-text{letter-spacing:-1px;background:linear-gradient(135deg,var(--color-primary),var(--color-accent-blue));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:28px;font-weight:800}.nav-links{gap:40px;list-style:none;display:flex}.nav-links a{color:var(--color-primary);transition:var(--transition-smooth);font-size:15px;font-weight:500;text-decoration:none;position:relative}.nav-links a:after{content:"";background:var(--color-accent-blue);width:0;height:2px;transition:var(--transition-smooth);position:absolute;bottom:-4px;left:0}.nav-links a:hover:after{width:100%}.hero-premium{background:url(/images/mkbox2/hero-bg.png) 50%/cover no-repeat;justify-content:center;align-items:center;min-height:100vh;display:flex;position:relative;overflow:hidden}.hero-background-overlay{z-index:1;background:radial-gradient(circle at 20%,#0066cc1a 0%,#0000 50%),radial-gradient(circle at 80% 80%,#d4af371a 0%,#0000 50%);position:absolute;inset:0}.hero-premium .container{z-index:2;position:relative}.hero-glass-panel{-webkit-backdrop-filter:blur(30px);backdrop-filter:blur(30px);text-align:center;background:#ffffffb3;border:1px solid #ffffff4d;border-radius:24px;max-width:900px;margin:0 auto;padding:80px 60px;box-shadow:0 8px 32px #0000001a,inset 0 1px #fffc}.hero-headline{color:var(--color-primary);letter-spacing:-2px;margin-bottom:24px;font-size:56px;font-weight:800;line-height:1.2}.hero-subheadline{color:var(--color-gray-dark);margin-bottom:40px;font-size:20px;font-weight:400}.hero-cta-group{flex-wrap:wrap;justify-content:center;gap:16px;display:flex}.btn-primary,.btn-secondary{transition:var(--transition-smooth);cursor:pointer;border:none;border-radius:12px;padding:16px 40px;font-size:16px;font-weight:600;text-decoration:none;display:inline-block}.btn-primary{background:var(--color-accent-blue);color:#fff;box-shadow:0 4px 16px #0066cc4d}.btn-primary:hover{background:#0052a3;transform:translateY(-2px);box-shadow:0 6px 24px #06c6}.btn-secondary{color:var(--color-primary);border:2px solid var(--color-primary);background:#fff}.btn-secondary:hover{background:var(--color-primary);color:#fff;transform:translateY(-2px)}.scroll-indicator{z-index:2;position:absolute;bottom:40px;left:50%;transform:translate(-50%)}.scroll-indicator span{border:2px solid var(--color-primary);border-radius:12px;width:24px;height:40px;display:block;position:relative}.scroll-indicator span:before{content:"";background:var(--color-primary);border-radius:2px;width:4px;height:8px;animation:2s infinite scroll-down;position:absolute;top:8px;left:50%;transform:translate(-50%)}@keyframes scroll-down{0%,to{opacity:0;transform:translate(-50%)translateY(0)}50%{opacity:1;transform:translate(-50%)translateY(8px)}}.trusted-by{background:var(--color-white);text-align:center;padding:80px 0}.trusted-text{color:var(--color-gray-dark);margin-bottom:40px;font-size:18px;font-weight:500}.logo-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:32px;max-width:900px;margin:0 auto;display:grid}.company-logo{background:var(--color-gray-light);color:var(--color-gray-dark);transition:var(--transition-smooth);filter:grayscale();opacity:.6;border-radius:12px;justify-content:center;align-items:center;padding:24px;font-size:24px;font-weight:700;display:flex}.company-logo:hover{filter:grayscale(0%);opacity:1;transform:translateY(-4px)}.promo-video-section{background:var(--color-white);text-align:center;padding:100px 0}.video-wrapper{max-width:1000px;box-shadow:var(--shadow-neumorphic);border:8px solid #fff;border-radius:24px;margin:0 auto;overflow:hidden}.promo-video{width:100%;display:block}.products-section{background:var(--color-gray-light);padding:100px 0}.section-header{text-align:center;margin-bottom:60px}.section-header h2{color:var(--color-primary);letter-spacing:-1px;margin-bottom:16px;font-size:48px;font-weight:800}.section-header p{color:var(--color-gray-dark);font-size:18px}.products-grid{grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:32px;display:grid}.product-card{box-shadow:var(--shadow-card);transition:var(--transition-smooth);background:#fff;border-radius:20px;overflow:hidden}.product-card:hover{transform:translateY(-8px);box-shadow:0 20px 60px #0000001f}.product-visual{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);height:240px;position:relative;overflow:hidden}.product-visual:before{content:"📦";opacity:.3;font-size:80px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.product-visual.standard-box{background:url(/images/mkbox2/product-standard.png) 50%/cover no-repeat}.product-visual.standard-box:before{display:none}.product-visual.partition-box{background:url(/images/mkbox2/product-partition.png) 50%/cover no-repeat}.product-visual.partition-box:before{display:none}.product-visual.honeycomb-box{background:linear-gradient(135deg,#4facfe 0%,#00f2fe 100%)}.product-visual.industrial-box{background:linear-gradient(135deg,#43e97b 0%,#38f9d7 100%)}.product-visual.custom-box{background:linear-gradient(135deg,#fa709a 0%,#fee140 100%)}.product-visual.cushion-material{background:linear-gradient(135deg,#30cfd0 0%,#330867 100%)}.product-info{padding:32px}.product-info h3{color:var(--color-primary);margin-bottom:12px;font-size:22px;font-weight:700}.product-info p{color:var(--color-gray-dark);margin-bottom:20px;line-height:1.6}.product-link{color:var(--color-accent-blue);transition:var(--transition-smooth);align-items:center;font-weight:600;text-decoration:none;display:inline-flex}.product-link:hover{gap:8px}.factory-strength{background:#fff;padding:100px 0}.strength-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:32px;display:grid}.strength-card{background:var(--color-gray-light);text-align:center;transition:var(--transition-smooth);box-shadow:var(--shadow-neumorphic);border-radius:20px;padding:40px 32px}.strength-card:hover{transform:translateY(-8px);box-shadow:0 12px 40px #0000001a}.strength-icon{margin-bottom:20px;font-size:64px;display:block}.strength-card h3{color:var(--color-primary);margin-bottom:12px;font-size:20px;font-weight:700}.strength-card p{color:var(--color-gray-dark);line-height:1.6}.factory-gallery{background:var(--color-gray-light);padding:100px 0}.gallery-grid{grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:24px;display:grid}.gallery-item{text-align:center}.gallery-image{height:280px;transition:var(--transition-smooth);cursor:pointer;background:linear-gradient(135deg,#1e3c72 0%,#2a5298 100%);border-radius:16px;margin-bottom:16px;position:relative;overflow:hidden}.gallery-image:before{display:none}.gallery-image.production{background:url(/images/mkbox2/production-line.png) 50%/cover no-repeat}.gallery-image.cutting{background:url(/images/mkbox2/cutting-process.png) 50%/cover no-repeat}.gallery-image.printing{background:url(/images/mkbox2/printing-process.png) 50%/cover no-repeat}.gallery-image.assembly{background:url(/images/mkbox2/assembly-system.png) 50%/cover no-repeat}.gallery-image.quality{background:url(/images/mkbox2/quality-inspection.png) 50%/cover no-repeat}.gallery-image.packaging{background:url(/images/mkbox2/packaging-shipping.png) 50%/cover no-repeat}.gallery-image:hover{transform:scale(1.05)}.gallery-item p{color:var(--color-primary);font-weight:600}.process-section{background:#fff;padding:100px 0}.process-timeline{flex-wrap:wrap;justify-content:space-between;gap:24px;margin-top:60px;display:flex}.process-step{text-align:center;flex:1;min-width:180px;position:relative}.process-step:after{content:"→";color:var(--color-accent-blue);font-size:24px;font-weight:700;position:absolute;top:60px;right:-20px}.process-step:last-child:after{display:none}.step-number{background:var(--color-accent-blue);color:#fff;border-radius:50%;width:48px;height:48px;margin-bottom:16px;font-size:18px;font-weight:700;line-height:48px;display:inline-block}.step-icon{margin-bottom:16px;font-size:48px;display:block}.process-step h3{color:var(--color-primary);margin-bottom:8px;font-size:18px;font-weight:700}.process-step p{color:var(--color-gray-dark);font-size:14px}.reviews-section{background:var(--color-gray-light);padding:100px 0}.reorder-rate{margin-top:8px;color:var(--color-accent-blue)!important;font-size:24px!important;font-weight:700!important}.reviews-grid{grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:32px;display:grid}.review-card{box-shadow:var(--shadow-card);transition:var(--transition-smooth);background:#fff;border-radius:20px;padding:40px}.review-card:hover{transform:translateY(-4px);box-shadow:0 16px 48px #0000001f}.review-content{color:var(--color-primary);margin-bottom:24px;font-size:16px;font-style:italic;line-height:1.8}.review-author strong{color:var(--color-primary);margin-bottom:4px;font-size:16px;display:block}.review-author span{color:var(--color-gray-dark);font-size:14px}.contact-section{background:#fff;padding:100px 0}.contact-promise{margin-top:8px;color:var(--color-accent-blue)!important;font-size:20px!important;font-weight:600!important}.contact-layout{grid-template-columns:1fr 1fr;gap:60px;margin-top:60px;display:grid}.premium-form{flex-direction:column;gap:24px;display:flex}.form-row{grid-template-columns:1fr 1fr;gap:20px;display:grid}.form-group{flex-direction:column;gap:8px;display:flex}.form-group label{color:var(--color-primary);font-size:14px;font-weight:600}.form-group input,.form-group select,.form-group textarea{border:2px solid var(--color-gray-medium);font-size:15px;font-family:var(--font-body);transition:var(--transition-smooth);background:#fff;border-radius:12px;padding:14px 16px}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--color-accent-blue);outline:none;box-shadow:0 0 0 4px #0066cc1a}.btn-submit{background:var(--color-accent-blue);color:#fff;cursor:pointer;transition:var(--transition-smooth);border:none;border-radius:12px;padding:16px 40px;font-size:16px;font-weight:600;box-shadow:0 4px 16px #0066cc4d}.btn-submit:hover{background:#0052a3;transform:translateY(-2px);box-shadow:0 6px 24px #06c6}.map-placeholder{background:var(--color-gray-light);text-align:center;height:100%;box-shadow:var(--shadow-neumorphic);border-radius:20px;flex-direction:column;justify-content:center;padding:60px 40px;display:flex}.map-icon{margin-bottom:24px;font-size:80px}.map-placeholder h3{color:var(--color-primary);margin-bottom:8px;font-size:24px;font-weight:700}.map-placeholder p{color:var(--color-gray-dark);margin-bottom:32px}.contact-details{flex-direction:column;align-items:center;gap:16px;display:flex}.detail-item{color:var(--color-primary);align-items:center;gap:12px;font-size:16px;display:flex}.detail-icon{font-size:20px}.premium-footer{background:var(--color-primary);color:#fff;padding:80px 0 40px}.footer-content{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:40px;margin-bottom:60px;display:flex}.footer-brand h3{background:linear-gradient(135deg,white,var(--color-gray-medium));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:8px;font-size:28px;font-weight:800}.footer-brand p{color:var(--color-gray-dark)}.footer-links{gap:32px;display:flex}.footer-links a{color:var(--color-gray-medium);transition:var(--transition-smooth);text-decoration:none}.footer-links a:hover{color:#fff}.footer-bottom{text-align:center;color:var(--color-gray-dark);border-top:1px solid #ffffff1a;padding-top:40px;font-size:14px}@media (max-width:768px){.hero-headline{font-size:40px}.contact-layout{grid-template-columns:1fr}.footer-content{text-align:center;flex-direction:column}.footer-links{flex-direction:column;gap:16px}}