*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6;color:#333}body{background:linear-gradient(135deg,#e8f6ff,#87ceeb);min-height:100vh}.container{max-width:800px;margin:0 auto;padding:2rem}.header{text-align:center;margin-bottom:3rem}.logo{width:120px;height:120px;background:#4ecdc4;border-radius:20px;margin:0 auto 1rem;display:flex;align-items:center;justify-content:center;font-size:3rem;box-shadow:0 8px 32px rgba(0,0,0,.1)}.title{font-size:2.5rem;font-weight:800;color:#2c5282;margin-bottom:.5rem}.subtitle{font-size:1.2rem;color:#4a5568;font-weight:500}.card{background:#fff;border-radius:16px;padding:2rem;margin-bottom:2rem;box-shadow:0 8px 32px rgba(0,0,0,.1);border:1px solid hsla(0,0%,100%,.2)}.card h2{color:#2c5282;font-size:1.5rem;display:flex;align-items:center;gap:.5rem}.card h2,.card p{margin-bottom:1rem}.card p{color:#4a5568}.card ul{margin-left:1.5rem;margin-bottom:1rem}.card li{margin-bottom:.5rem;color:#4a5568}.contact-info{background:#f7fafc;padding:1rem;border-radius:8px;border-left:4px solid #4ecdc4}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));grid-gap:1rem;gap:1rem;margin-top:1rem}.feature-item{background:#f7fafc;padding:1rem;border-radius:8px;text-align:center}.feature-icon{font-size:2rem;margin-bottom:.5rem}.version-info{text-align:center;margin-top:2rem;padding:1rem;background:hsla(0,0%,100%,.5);border-radius:8px;color:#4a5568}@media (max-width:768px){.container{padding:1rem}.title{font-size:2rem}.card{padding:1.5rem}}.language-toggle{position:fixed;top:2rem;right:2rem;background:#fff;border:2px solid #4ecdc4;border-radius:25px;padding:.5rem 1rem;font-weight:600;cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,.1);transition:all .3s ease;z-index:1000}.language-toggle:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.15)}.language-toggle span{margin:0 .25rem;transition:all .3s ease}.language-toggle span.active{color:#4ecdc4;font-weight:700}.language-toggle .separator{color:#cbd5e0;margin:0 .5rem}@media (max-width:768px){.language-toggle{top:1rem;right:1rem;padding:.4rem .8rem;font-size:.9rem}}.last-updated{font-size:.9rem;color:#718096;font-style:italic;margin-top:.5rem}.navigation{margin-bottom:2rem}.back-link{display:inline-flex;align-items:center;padding:.5rem 1rem;background:#fff;color:#4ecdc4;text-decoration:none;border-radius:8px;font-weight:500;box-shadow:0 2px 8px rgba(0,0,0,.1);transition:all .3s ease}.back-link:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,.15);background:#f7fafc}.highlight{border-left:4px solid #4ecdc4;background:linear-gradient(135deg,#f7fafc,#e6fffa)}.privacy-link{display:inline-flex;align-items:center;color:#4ecdc4;text-decoration:none;font-weight:500;margin-top:1rem;padding:.5rem;border-radius:4px;transition:all .3s ease}.privacy-link:hover{background:rgba(78,205,196,.1);transform:translateX(4px)}