:root{--primary-color:#3a86ff;--secondary-color:#8338ec;--accent-color:#ff006e;--light-color:#f8f9fa;--dark-color:#212529;--gray-color:#6c757d;--light-gray:#e9ecef;--border-radius:8px;--box-shadow:0 4px 12px rgba(0, 0, 0, 0.1);--transition:all 0.3s ease}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,'Open Sans','Helvetica Neue',sans-serif;line-height:1.6;color:var(--dark-color);background-color:#fff}.container{max-width:1200px;margin:0 auto;padding:0 20px}.navbar{position:fixed;top:0;width:100%;background-color:rgba(255,255,255,.95);backdrop-filter:blur(10px);box-shadow:0 2px 10px rgba(0,0,0,.1);z-index:1000}.nav-container{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;justify-content:space-between;align-items:center;height:60px}.nav-logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:inherit}.nav-logo h2{color:var(--primary-color);font-size:1.5rem}.nav-logo .logo{width:44px;height:44px;border-radius:10px;background:linear-gradient(135deg,var(--accent),#ffd3b2);display:inline-block;object-fit:cover}.nav-menu{display:flex;list-style:none;align-items:center}.nav-menu li{margin-left:30px}.nav-link{text-decoration:none;color:var(--dark-color);font-weight:500;transition:var(--transition)}.nav-link:hover{color:var(--primary-color)}.language-switcher{display:flex;gap:5px}.lang-btn{background-color:var(--light-gray);border:none;padding:8px 15px;border-radius:var(--border-radius);cursor:pointer;font-weight:500;transition:var(--transition)}.lang-btn:hover{background-color:var(--primary-color);color:#fff}.lang-btn.active{background-color:var(--primary-color);color:#fff}.hero{padding:120px 0 30px;background:linear-gradient(135deg,#f5f7fa 0,#c3cfe2 100%)}.hero-container{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:40px}.hero-content{flex:1}.hero-title{font-size:3rem;font-weight:700;margin-bottom:20px;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-subtitle{font-size:1.2rem;color:var(--gray-color);margin-bottom:30px}.download-container{display:flex;flex-direction:column;align-items:center;margin-top:30px}.download-info{display:flex;flex-direction:column;gap:8px}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:var(--border-radius);text-decoration:none;font-weight:600;transition:var(--transition);text-align:center;border:none;cursor:pointer;font-size:1.5rem}.btn-download:hover{transform:translateY(-2px)}.download-badge{height:60px;width:auto}.btn-icon{margin-right:8px;font-size:1.5rem}.system-requirements{display:flex;gap:8px;font-size:.85rem;color:var(--gray-color);align-items:center}.requirement-divider{color:#adb5bd}.video-container{display:flex;flex-direction:column;gap:12px;align-items:center;margin-top:40px;position:relative}.promo-video{width:100%;max-width:1000px;aspect-ratio:16/9;border-radius:14px;background:var(--card);border:1px solid rgba(255,255,255,.04);box-shadow:0 10px 30px rgba(2,6,23,.6);overflow:hidden}.promo-video iframe{width:100%;height:100%;border:none;border-radius:14px}.video-caption{color:var(--muted);font-size:13px;text-align:center;margin:0}.video-loading{padding:10px 20px;background-color:var(--light-gray);border-radius:var(--border-radius);color:var(--gray-color);font-size:.9rem;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:10;display:none}.features{padding:80px 0}.section-title{text-align:center;font-size:2.5rem;margin-bottom:50px;color:var(--dark-color)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}.feature-card{background-color:#fff;border-radius:var(--border-radius);padding:30px;box-shadow:var(--box-shadow);transition:var(--transition);text-align:center}.feature-card:hover{transform:translateY(-5px);box-shadow:0 10px 20px rgba(0,0,0,.1)}.feature-icon{font-size:3rem;margin-bottom:20px}.feature-card h3{font-size:1.5rem;margin-bottom:15px;color:var(--dark-color)}.feature-card p{color:var(--gray-color)}.how-it-works{padding:40px 0;background-color:var(--light-gray)}.steps{display:flex;flex-direction:column;gap:40px;max-width:800px;margin:0 auto}.step{display:flex;align-items:flex-start;gap:30px}.step-number{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;width:50px;height:50px;border-radius:50%;display:flex;justify-content:center;align-items:center;font-size:1.5rem;font-weight:700;flex-shrink:0}.step-content h3{font-size:1.5rem;color:var(--dark-color)}.footer{background-color:var(--dark-color);color:#fff;padding:20px 0 20px}.footer-bottom{display:flex;justify-content:center;align-items:center;gap:10px;padding:20px 0;text-align:center;color:#adb5bd;font-size:.9rem}@media (max-width:768px){.hero-container{flex-direction:column;text-align:center}.hero-title{font-size:2.5rem}.nav-menu{display:none}.download-info{flex-direction:column}.step{flex-direction:column;text-align:center;gap:15px}.download-container{align-items:center}.download-meta{flex-direction:column;gap:4px;align-items:center}.system-requirements{flex-direction:column;gap:4px}.requirement-divider{display:none}}@media (max-width:522px){.video-container{display:none}}