#app,.container{padding:0;margin:0}.container{height:100vh;width:100vw;position:relative}.back_ground_img{position:absolute;left:0;top:0;height:100vh;width:100vw;z-index:-100}.logo{margin-top:15vh;width:70px;height:70px}.logo,.title{margin-left:20px}.title{font-size:70px;color:#000;font-weight:bolder}.title1{margin-top:20px}.title2{margin-top:-15px}.title_small{margin-left:20px;font-size:22px;color:#333;margin-top:10px}.menu-container{width:100vw;display:flex;flex-direction:column;justify-content:center;align-items:center;margin-top:40px}.menu-btn{width:254px;height:54px;position:relative}.btn_ground_img{left:0;top:0;width:254px;height:54px;position:absolute}.text-btn{left:50px;top:0;right:50px;bottom:0;position:absolute;display:flex;flex-direction:column;justify-content:center;align-items:center}.text-item{color:#fff;font-size:17px}.menu-btn2{margin-top:30px}