.menu{
    width: 700px;
    height: 800px;
    border: 1px solid #333;
}
.menu .nav{
    height: 150px;
    width: 100%;
}
.nav li .logo{
    width: 220px;
    height: 150px;
    margin-right: 60px;
    box-sizing: border-box;
}
.nav li .right_1 .introduce a{
    width: 420px;
    height: 26px;
    color: #333;
    font-size: 18px;
    overflow: hidden;
    
    }
.nav li .right_1 .text{
    width: 400px;
    height: 56px;
    margin-top: 10px;
}
.nav li .right_1 .introduce a:hover{
   color:  #ff8a00;
}
.nav li .right_1 .text a{
      
      color: #666;
      font-size: 14px;
}