#app{font-family:Helvetica Neue,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#333;overflow-x:hidden}#app,*{margin:0;padding:0}*{box-sizing:border-box}body{margin:0;padding:0;font-size:16px;line-height:1.6}@media(max-width:768px){.container{padding:0 15px}}.container{max-width:1320px;margin:0 auto;padding:0 20px}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.mb-sm{margin-bottom:10px}.mb-md{margin-bottom:20px}.mb-lg{margin-bottom:30px}.mt-sm{margin-top:10px}.mt-md{margin-top:20px}.mt-lg{margin-top:30px}.p-sm{padding:10px}.p-md{padding:20px}.p-lg{padding:30px}.btn{display:inline-block;padding:10px 20px;border:none;border-radius:8px;cursor:pointer;text-decoration:none;transition:all .3s ease}.btn:hover{transform:translateY(-2px);box-shadow:0 4px 8px rgba(0,0,0,.15)}.btn-primary{background-color:#007bff;color:#fff}.btn-secondary{background-color:#6c757d;color:#fff}