:root{--color-primary: #0044cc;--color-secondary: #00aaff;--color-accent: #00e5ff;--color-dark: #0a1128;--color-dark-surface: #131c36;--color-light: #f4f7f9;--color-text-main: #1f2937;--color-text-light: #e5e7eb;--color-text-body: #4b5563;--color-surface-card: #ffffff;--color-surface-alt: #f8fafc;--color-border: #e5e7eb;--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 2rem;--spacing-lg: 4rem;--spacing-xl: 8rem;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1);--shadow-glow: 0 0 15px rgba(0, 170, 255, .3);--color-navbar-bg: rgba(255, 255, 255, .9)}[data-theme=dark]{--color-light: #0a1128;--color-text-main: #f4f7f9;--color-text-light: #a3a3a3;--color-text-body: #d1d5db;--color-dark: #f4f7f9;--color-primary: #4d8bff;--color-secondary: #33bfff;--color-surface-card: #131c36;--color-surface-alt: #1a233b;--color-border: #1f2937;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .5);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .5);--color-navbar-bg: rgba(10, 17, 40, .9)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--color-light);color:var(--color-text-main);line-height:1.6;overflow-x:hidden}a{text-decoration:none;color:inherit}ul{list-style:none}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-sm)}.section{padding:var(--spacing-xl) 0}.section-title{font-size:2.5rem;font-weight:700;text-align:center;margin-bottom:var(--spacing-lg);color:var(--color-dark)}.text-gradient{background:linear-gradient(to right,var(--color-primary),var(--color-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn .8s ease-out forwards}.navbar{position:fixed;top:0;left:0;width:100%;padding:1rem 0;z-index:1000;transition:all .3s ease;background:transparent}.navbar.scrolled{background:var(--color-navbar-bg);padding:.8rem 0;box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.navbar-content{display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;height:50px}.logo-img{height:100%;width:auto;transition:background-color .3s ease;object-position:-99999px;-webkit-mask:url(/assets/stelink_logo-Crpavf5N.png) no-repeat center / contain;mask:url(/assets/stelink_logo-Crpavf5N.png) no-repeat center / contain;background-color:#fff}.navbar.scrolled .logo-img{background-color:var(--color-primary);filter:none}.nav-links{display:flex;gap:2rem}.nav-links a{color:#ffffffe6;font-weight:500;font-size:.95rem;transition:color .2s}.nav-links a:hover{color:var(--color-accent)}.navbar.scrolled .nav-links a{color:var(--color-text-main)}.navbar.scrolled .nav-links a:hover{color:var(--color-primary)}.theme-toggle-btn{background:none;border:none;font-size:1.2rem;cursor:pointer;margin-left:1rem;padding:.5rem;border-radius:50%;transition:all .3s ease;display:flex;align-items:center;justify-content:center}.theme-toggle-btn:hover{background-color:#8080801a;transform:scale(1.1)}.mobile-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer}.bar{width:25px;height:3px;background-color:#fff;transition:.3s}.navbar.scrolled .bar{background-color:var(--color-text-main)}@media(max-width:768px){.mobile-toggle{display:flex}.nav-links{position:absolute;top:100%;left:0;width:100%;flex-direction:column;background:var(--color-navbar-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:2rem;gap:1.5rem;text-align:center;box-shadow:var(--shadow-md);transform:translateY(-20px);opacity:0;pointer-events:none;transition:all .3s ease}.nav-links.active{transform:translateY(0);opacity:1;pointer-events:all}.nav-links a{color:var(--color-text-main);font-size:1.1rem}}.footer{background:#0a1128;color:#fff;padding-top:var(--spacing-lg)}.footer-content{display:grid;grid-template-columns:2fr 1fr;gap:3rem;padding-bottom:3rem;border-bottom:1px solid rgba(255,255,255,.1)}.footer-info h3{font-size:1.5rem;margin-bottom:.5rem}.footer-info>p{color:#fff9;margin-bottom:2rem}.footer-contact p{margin-bottom:.5rem;opacity:.8}.footer-links h4{font-size:1.1rem;margin-bottom:1.5rem;color:var(--color-accent)}.footer-links ul li{margin-bottom:.8rem}.footer-links a{opacity:.7;transition:opacity .2s}.footer-links a:hover{opacity:1;color:var(--color-accent)}.footer-bottom{text-align:center;padding:1.5rem 0;font-size:.9rem;color:#fff6;background:var(--color-dark-surface)}@media(max-width:768px){.footer-content{grid-template-columns:1fr;gap:2rem}}.hero-section{position:relative;height:100vh;width:100%;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#0a1128;color:#fff}.hero-bg{position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle 600px at var(--mouse-x, 50%) var(--mouse-y, 50%),rgba(0,68,204,.4),transparent 40%),radial-gradient(circle at 80% 80%,rgba(0,170,255,.1) 0%,transparent 40%);z-index:1;transition:background .1s ease}.hero-canvas{position:absolute;top:0;left:0;width:100%;height:100%;z-index:2;pointer-events:none}.hero-content{position:relative;z-index:10;text-align:center}.hero-title{font-size:4rem;font-weight:800;margin-bottom:1.5rem;line-height:1.2}.hero-subtitle{font-size:1.5rem;color:#fffc;margin-bottom:3rem;font-weight:300}.hero-cta-group{display:flex;gap:1.5rem;justify-content:center}.btn{padding:.8rem 2.5rem;border-radius:50px;font-weight:600;transition:all .3s;cursor:pointer}.btn-primary{background:var(--color-primary);color:#fff;border:2px solid var(--color-primary);box-shadow:0 0 20px #0044cc80}.btn-primary:hover{background:var(--color-secondary);border-color:var(--color-secondary);transform:translateY(-2px)}.btn-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.3)}.btn-outline:hover{border-color:#fff;background:#ffffff1a}.scroll-indicator{position:absolute;bottom:2rem;left:50%;transform:translate(-50%);z-index:10}.mouse{width:26px;height:42px;border:2px solid rgba(255,255,255,.5);border-radius:20px;position:relative}.mouse:before{content:"";position:absolute;top:8px;left:50%;transform:translate(-50%);width:4px;height:4px;background:#fff;border-radius:50%;animation:scroll 2s infinite}@keyframes scroll{0%{transform:translate(-50%);opacity:1}to{transform:translate(-50%,20px);opacity:0}}@media(max-width:768px){.hero-title{font-size:2.2rem}.hero-subtitle{font-size:1.1rem}}.company-intro-section{background:transparent}.company-intro-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2rem}.company-intro-card{background:var(--color-surface-card);border:1px solid rgba(0,0,0,.06);border-radius:16px;padding:2rem;box-shadow:var(--shadow-sm)}.company-intro-card h3{font-size:1.25rem;margin-bottom:1rem;color:var(--color-dark)}.company-intro-card p{color:var(--color-text-body);line-height:1.8}.value-tags{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.25rem}.value-tags span{background:var(--color-surface-alt);color:var(--color-primary);border:1px solid rgba(0,68,204,.15);padding:.25rem .75rem;border-radius:999px;font-size:.85rem;font-weight:600}@media(max-width:900px){.company-intro-grid{grid-template-columns:1fr}}.tech-section{background:transparent;padding-bottom:5rem}.tech-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;margin-bottom:5rem}.summary-card{background:var(--color-surface-alt);padding:2rem;border-radius:12px;text-align:center;transition:transform .3s ease,box-shadow .3s ease;border:1px solid rgba(0,0,0,.05);position:relative;overflow:hidden}.summary-card:hover{transform:translateY(-5px);box-shadow:0 10px 20px #0044cc1a;border-color:#04c3}.summary-icon{font-size:3rem;font-weight:900;color:#0044cc1a;position:absolute;top:-10px;right:10px;line-height:1;z-index:0}.summary-img-container{height:120px;display:flex;align-items:center;justify-content:center;margin-bottom:1.5rem;position:relative;z-index:1}.summary-img-container img{max-height:100%;max-width:100%;object-fit:contain}.summary-card h3{color:var(--color-primary);margin-bottom:1rem;font-size:1.25rem;position:relative;z-index:1}.summary-card p{font-size:.95rem;color:var(--color-text-body);line-height:1.6;position:relative;z-index:1}@media(max-width:768px){.tech-summary{grid-template-columns:1fr;gap:1.5rem}}.features-list{display:flex;flex-direction:column;gap:5rem}.feature-block{display:flex;align-items:center;gap:4rem;padding:2rem 0}.feature-block.reverse{flex-direction:row-reverse}.feature-content{flex:1}.feature-content h3{font-size:1.75rem;margin-bottom:1.5rem;color:var(--color-dark);position:relative;padding-left:1rem;border-left:4px solid var(--color-primary)}.feature-desc{font-size:1.1rem;color:var(--color-text-body);line-height:1.6;margin-bottom:1.5rem}.feature-highlights{list-style:none;padding:0}.feature-highlights li{background:var(--color-surface-alt);margin-bottom:.8rem;padding:.8rem 1.2rem;border-radius:6px;font-size:.95rem;color:var(--color-text-main);display:flex;align-items:flex-start;box-shadow:0 2px 4px #00000005}.feature-highlights li:before{content:"✓";display:inline-block;margin-right:.8rem;color:var(--color-primary);font-weight:700;flex-shrink:0;margin-top:.2rem}.feature-image-wrapper{flex:1;background:var(--color-surface-alt);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-md);padding:1rem;border:1px solid #eee;display:flex;align-items:center;justify-content:center;min-height:300px}.feature-image{width:100%;height:auto;max-height:400px;object-fit:contain;transition:transform .4s ease}.feature-block:hover .feature-image{transform:scale(1.02)}@media(max-width:900px){.feature-block,.feature-block.reverse{flex-direction:column;gap:2rem;text-align:left}.feature-image-wrapper{width:100%;min-height:250px}.tech-intro{margin-bottom:3rem;padding:1.5rem}}.products-section{background-color:transparent}.category-tabs{display:flex;justify-content:center;gap:1rem;margin-bottom:3rem;flex-wrap:wrap}.tab-btn{padding:.6rem 1.5rem;border:1px solid var(--color-border);background:transparent;border-radius:30px;cursor:pointer;font-size:.95rem;color:var(--color-text-body);transition:all .3s}.tab-btn:hover{border-color:var(--color-primary);color:var(--color-primary)}.tab-btn.active{background:var(--color-primary);color:#fff;border-color:var(--color-primary);box-shadow:0 4px 10px #0044cc4d}.product-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}.product-card{background:var(--color-surface-card);border-radius:12px;overflow:hidden;box-shadow:var(--shadow-sm);transition:all .3s ease;border:1px solid rgba(0,0,0,.05);display:flex;flex-direction:column}.product-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--color-secondary)}.product-image-container{height:220px;background:var(--color-surface-card);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative;padding:1rem;border-bottom:1px solid var(--color-border)}.product-image-container img{width:100%;height:100%;object-fit:contain;transition:transform .5s}.category-tag{position:absolute;top:10px;right:10px;background:#0009;color:#fff;padding:4px 10px;border-radius:4px;font-size:.75rem;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.product-card:hover .product-image-container img{transform:scale(1.05)}.product-content{padding:1.5rem;flex:1;display:flex;flex-direction:column}.product-content h3{font-size:1.2rem;margin-bottom:.25rem;color:var(--color-dark)}.product-model{font-size:.85rem;color:var(--color-primary);font-weight:600;display:block;margin-bottom:.8rem}.product-content p{color:var(--color-text-body);font-size:.9rem;margin-bottom:1rem;line-height:1.5;flex-grow:1}.specs-row{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:auto}.spec-badge{background:var(--color-surface-alt);color:var(--color-primary);padding:.25rem .6rem;border-radius:4px;font-size:.75rem;font-weight:500}.solutions-section{background:var(--color-light)}.solutions-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:2rem}@media(max-width:768px){.solutions-grid{grid-template-columns:1fr}}.solution-card-link{display:block;text-decoration:none;color:inherit}.solution-card{display:flex;gap:1.5rem;padding:2rem;background:var(--color-surface-card);border-radius:12px;border-left:4px solid var(--color-primary);box-shadow:var(--shadow-sm);transition:transform .3s;height:100%}.solution-card:hover{transform:translate(10px);box-shadow:var(--shadow-md);border-left-color:var(--color-secondary)}.solution-icon{font-size:3rem;min-width:60px;display:flex;align-items:flex-start;padding-top:5px}.solution-text h3{font-size:1.2rem;color:var(--color-primary);margin-bottom:.25rem;display:flex;justify-content:space-between}.solution-text h4{font-size:1rem;color:var(--color-text-main);margin-bottom:.75rem;font-weight:600}.solution-text p{font-size:.95rem;color:var(--color-text-body);line-height:1.6}.partners-section{background:var(--color-surface-alt)}.partners-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1.25rem;align-items:stretch}.partner-card{background:var(--color-surface-card);border:1px solid rgba(0,0,0,.06);border-radius:14px;padding:1rem;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);min-height:90px}.partner-card img{max-width:100%;max-height:56px;object-fit:contain}.thanks-row{margin-top:2.5rem;display:flex;justify-content:center}.thanks-card{background:linear-gradient(135deg,#0044cc14,#00aaff14);border:1px solid rgba(0,68,204,.12);border-radius:16px;padding:1.5rem 2rem;text-align:center;max-width:680px;width:100%}.thanks-card h3{color:var(--color-dark);font-size:1.6rem;margin-bottom:.4rem}.thanks-card p{color:var(--color-text-body)}@media(max-width:900px){.partners-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}.case-detail-page{background:transparent}.case-hero{position:relative;height:50vh;min-height:400px;display:flex;align-items:center;justify-content:center;color:#fff;text-align:center}.case-hero-bg{position:absolute;top:0;left:0;width:100%;height:100%;background-size:cover;background-position:center;z-index:1}.case-hero-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#0a1128b3;z-index:2}.case-hero-content{position:relative;z-index:3}.case-hero-content h1{font-size:3rem;margin-bottom:1rem}.case-hero-content .subtitle{font-size:1.5rem;opacity:.9;font-weight:300}.content-grid{display:grid;grid-template-columns:2fr 1fr;gap:4rem}.text-column h3{font-size:1.8rem;color:var(--color-dark);margin-bottom:1.5rem;border-left:5px solid var(--color-primary);padding-left:1rem}.text-column p{font-size:1.05rem;color:var(--color-text-body);margin-bottom:1.5rem;line-height:1.8;white-space:pre-line}.btn-outline-dark{display:inline-block;margin-top:2rem;padding:.8rem 2rem;border:1px solid #ddd;border-radius:30px;color:var(--color-text-body);font-weight:600;transition:all .3s}.btn-outline-dark:hover{border-color:var(--color-primary);color:var(--color-primary);background:var(--color-surface-alt)}.stats-card{background:var(--color-surface-card);padding:2rem;border-radius:12px;box-shadow:var(--shadow-md);position:sticky;top:100px}.stats-card h4{font-size:1.2rem;margin-bottom:1.5rem;color:var(--color-text-main);border-bottom:1px solid var(--color-border);padding-bottom:.5rem}.stats-card ul li{margin-bottom:1rem;font-size:1rem;color:var(--color-text-body);display:flex;align-items:flex-start;gap:.5rem}.check-icon{color:var(--color-secondary);font-weight:700}@media(max-width:768px){.content-grid{grid-template-columns:1fr;gap:2rem}.case-hero-content h1{font-size:2rem}}