*{margin:0;padding:0;box-sizing:border-box}body{font-family:Helvetica Neue,Arial,sans-serif;line-height:1.6;color:#333;overflow:hidden}#app{flex-direction:column;min-height:100vh}#app,header{display:flex}header{justify-content:space-between;align-items:center;padding:1rem 2rem;background-color:#fff;box-shadow:0 2px 10px rgba(0,0,0,.1);position:fixed;top:0;left:0;right:0;z-index:100;transition:transform .3s ease-in-out}.logo img{height:40px}nav ul{display:flex;list-style:none}nav ul li{margin-left:2rem}nav ul li a{text-decoration:none;color:#333;font-weight:500;transition:color .3s}nav ul li a:hover{color:#4caf50}.mobile-hidden{transform:translateY(-100%);transition:transform .3s ease-in-out}.menu-button{cursor:pointer;padding:10px;position:absolute;right:20px;top:50%;transform:translateY(-50%)}.menu-icon{width:30px;height:20px;position:relative}.menu-icon div{height:3px;background-color:#333;margin:5px 0;transition:.3s}.mobile-menu{position:fixed;top:60px;left:0;right:0;background-color:#fff;z-index:99;box-shadow:0 5px 10px rgba(0,0,0,.1)}.mobile-menu ul{list-style:none}.mobile-menu ul li{padding:1rem 2rem;border-bottom:1px solid #eee}.mobile-menu ul li a{text-decoration:none;color:#333;display:block}main{flex:1;padding-top:60px}.page-container{height:calc(100vh - 60px);position:relative;overflow:hidden}.page{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;visibility:hidden;transition:opacity .5s ease-in-out,visibility .5s ease-in-out}.page.active{opacity:1;visibility:visible;z-index:1}#home{display:flex;justify-content:center;align-items:center;text-align:center;background-color:#f9f9f9}.home-content{max-width:800px;padding:2rem}.home-logo{width:120px;margin-bottom:2rem}h1{font-size:3rem;margin-bottom:1rem;color:#333}.subtitle{font-size:1.5rem;color:#666;margin-bottom:2rem}.download-button{display:inline-block;background-color:#4caf50;color:#fff;padding:1rem 2rem;text-decoration:none;border-radius:30px;font-weight:700;font-size:1.2rem;transition:background-color .3s}.download-button:hover{background-color:#3e8e41}.email-button{display:inline-block;background-color:#2196f3;color:#fff;padding:.7rem 1.5rem;text-decoration:none;border-radius:20px;margin-top:1rem;font-weight:500;transition:background-color .3s}.email-button:hover{background-color:#0b7dda}.feature-container{max-width:1200px;margin:0 auto;padding:80px 2rem 0;height:100%;overflow-y:auto}.feature{display:flex;align-items:center;margin-bottom:5rem}.feature.reverse{flex-direction:row-reverse}.feature-text{flex:1;padding:0 2rem}.feature-text h2{font-size:2.5rem;margin-bottom:1rem;color:#4caf50}.feature-text p{font-size:1.2rem;color:#666}.feature-image{flex:1;text-align:center}.feature-image img{max-width:100%;box-shadow:0 10px 30px rgba(0,0,0,.1);border-radius:10px}.contact-info{margin-top:2rem;padding:1.5rem;background-color:#f1f1f1;border-radius:10px}.contact-info p{margin-bottom:.5rem}#download{background-color:#f9f9f9}.download-container{max-width:1000px;margin:0 auto;padding:80px 2rem 0;text-align:center;height:100%;display:flex;flex-direction:column;overflow-y:auto}.download-container h2{font-size:2.5rem;margin-bottom:3rem;color:#333}.download-options{display:flex;justify-content:center;gap:3rem;flex:1}.download-option{flex:1;max-width:300px;background-color:#fff;padding:2rem;border-radius:10px;box-shadow:0 5px 20px rgba(0,0,0,.1);transition:transform .3s}.download-option:hover{transform:translateY(-10px)}.download-option img{width:80px;margin-bottom:1.5rem}.download-option h3{font-size:1.5rem;margin-bottom:.5rem;color:#333}.download-option p{color:#666;margin-bottom:1.5rem}.download-link{background-color:#4caf50}.download-link,.download-link-disable{display:inline-block;color:#fff;padding:.7rem 1.5rem;text-decoration:none;border-radius:20px;margin:.5rem;transition:background-color .3s}.download-link-disable{background-color:#747474}.download-link:hover{background-color:#3e8e41}.sdk-options{display:flex;flex-direction:column;gap:.5rem}.footer-container{margin-top:auto;width:100%}footer{background-color:#333;color:#fff;text-align:center;padding:1rem 0;width:100%}@media (max-width:768px){h1{font-size:2.5rem}.subtitle{font-size:1.2rem}.feature{margin-bottom:3rem}.feature,.feature.reverse{flex-direction:column}.feature-text{order:1;text-align:center;padding:0;margin-bottom:1.5rem}.feature-image{order:2}.feature-text h2{font-size:2rem}.feature-text p{font-size:1rem}.download-options{flex-direction:column;align-items:center}.download-option{margin-bottom:2rem}.menu-button{right:10px}}