.app-container{min-height:100vh;display:flex;flex-direction:column;background:linear-gradient(135deg,#c9d6ff,#e2e2e2);font-family:Arial,sans-serif;margin:0;padding:20px;box-sizing:border-box}@keyframes gradientAnimation{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}.banner{width:calc(100% - 40px);background:linear-gradient(-45deg,#ff6b6b,#4ecdc4,#45b7d1,#6574cd);background-size:400% 400%;animation:gradientAnimation 15s ease infinite;color:#fff;text-align:center;padding:20px;font-size:18px;line-height:1.5;border-radius:10px;margin:0 auto 20px;max-width:800px;box-shadow:0 4px 6px #0000001a;transition:transform .3s ease}.banner:hover{transform:translateY(-5px)}.content-wrapper{flex:1;display:flex;justify-content:center;align-items:center}.content{width:100%;max-width:600px;display:flex;flex-direction:column;align-items:center;justify-content:center}.logo{width:150px;height:auto;border-radius:15px;margin-bottom:4vh}.app-name{color:#333;margin-bottom:4vh;font-size:48px;display:flex;justify-content:center;align-items:baseline;white-space:nowrap}.app-name-main{color:#000;letter-spacing:8px;font-weight:700}.version{color:gray;margin-left:10px}.download-btn{display:inline-block;transition:opacity .3s ease}.download-btn:hover{opacity:.8}.app-store-badge{width:200px;height:auto}@media (max-width: 768px){.app-container{padding:15px}.banner{width:calc(100% - 30px);font-size:16px;padding:15px}.logo{width:120px}.app-name{font-size:36px}.app-name-main{letter-spacing:6px}.app-store-badge{width:180px}}@media (max-width: 480px){.app-container{padding:10px}.banner{width:calc(100% - 20px);font-size:14px;padding:12px}.logo{width:100px}.app-name{font-size:28px}.app-name-main{letter-spacing:4px}.app-store-badge{width:160px}}@media (max-height: 600px){.logo,.app-name{margin-bottom:2vh}}body,html{margin:0;padding:0;height:100%}