body{margin:0;background:#fff;color:#111;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.shell{min-height:100dvh;padding:16px 16px 72px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;display:flex;height:56px;border-top:1px solid #e5e5e5;background:#fff}.bottom-nav a{flex:1;display:flex;align-items:center;justify-content:center;min-height:44px;text-decoration:none;color:#555}.bottom-nav a.active{color:#111;font-weight:600}input{font-size:16px;min-height:44px}button{min-height:44px;font-size:16px}