*{margin:0;padding:0;box-sizing:border-box}
body{font-family:Arial,sans-serif}
header{display:flex;justify-content:space-between;align-items:center;padding:15px}
.logo{height:24px}
nav a{margin-left:15px;text-decoration:none;color:#333}
.banner{background:linear-gradient(to bottom right,#f0f8ff,#add8e6);text-align:center;background-repeat:no-repeat;background-size:cover;background-image:url(/app/view/public/img/banner-background.webp);margin-top:-60px;display:flex;justify-content:center;align-items:center;padding:158px 50px}
.update-notice{margin-bottom:40px;color:#94a3b8;font-size:14px}
.main-title{font-size:48px;color:#007bff;margin-bottom:20px}
.main-title svg{height:60px}
.slogan{font-size:30px;color:#475569;margin-bottom:30px;font-weight:700}
.button-container{display:flex;justify-content:center;gap:30px}
.get-app-button,.start-chat-button{text-decoration:none;background-color:#fff;border:1px solid #f9f9f9;border-radius:20px;padding:20px 30px;text-align:left;display:inline-block;transition:background-color .3s ease;box-shadow:0 0 0 1px #f1f5f9,0 2px 4px rgba(0,0,0,.05),0 12px 24px rgba(0,0,0,.05)}
.get-app-button:hover,.start-chat-button:hover{background-color:#e9ecef}
.button-content h3{color:#4d6bfe;margin-bottom:10px}
.button-content p{color:#64748b;font-size:15px}
footer{background-color:#f8f9fa;padding:40px 20px;text-align:center}
.footer-logo-container{margin-bottom:20px}
.footer-logo-container .social-icons{display:flex}
.footer-logo{height:24px;margin-bottom:20px}
.social-icons a{margin-right:10px;display:contents;color:#94a3b8}
.social-icons svg{height:20px}
.social-icons img{height:20px}
.footer-links{justify-content:center;margin-bottom:20px;display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:30px;max-width:1200px;margin:auto}
.link-column{text-align:left}
.link-column h4{color:#333;margin-bottom:10px;font-size:16px}
.link-column a{display:block;margin-bottom:15px;text-decoration:none;color:#666;font-size:14px;transition:color .3s ease}
.link-column a:hover{color:#007bff}
.copyright{color:#666;font-size:14px}