.about{
    width: 75%;
    display: flex;
    justify-content: space-between;
    margin: auto;
    margin-top: 5%;
}
.about-left{
    width: 23%;
}
.about-left ul{
    margin-top: 15%;
}
.about-left ul li{
    height: 38px;
    border-bottom: 1px solid #ebebeb;
}
.about-left ul li a{
    display: flex;
    justify-content: space-between;
    height: 38px;
	font-size: 16px;
    padding: 1.5% 0;
    transition: .5s;
}
.about-left ul li a .yjt{
    width: 28px;
    height: 28px;
    background-color: #9c9c9c;
	border-radius: 5px;
    text-align: center;
    line-height: 24.5px;
    margin-right: 3%;
    transition: .5s;
}
.about-active{
    background-color: #f6f6f6;
    color: #d54f52;
}
.about-active>#yjt{
    background-color: #d54f52;
}
.about-left ul li a:hover{
    background-color: #f6f6f6;
    color: #d54f52;
}
.about-left ul li a:hover>.yjt{
    background-color: #d54f52;
}
.about-right{
    width: 66%;
    margin-top: 2%;
}
.about-right h3{
    text-align: center;
}
.about-right>img{
    width: 100%;
    margin-top: 5%;
}
.about-right p{
	font-size: 14px;
	line-height: 28px;
	color: #666666;
    margin-top: 5%;
}

@media (max-width:990px){
    .about{
        display:flex;
        justify-content: space-between;
        flex-wrap: wrap;
    }
    .about-left{
        width:100%;
    }
    .about-right{
        width: 100%;
    }
    .about-left h3{
        text-align: center;
    }
    .about-left ul li{
        height: 50px;
    }
    .about-left ul li a{
        height: 50px;
    }
    .about-left ul {
        margin-top: 4%;
    }
}
@media (max-width:767px){
    .about{
        width: 85%;
    }
    .about-left ul li{
        height: 38px;
    }
    .about-left ul li a{
        height: 38px;
    }
    .about-left h3{
        text-align: center;
        font-size: 16px;
    }
    .about-left ul{
        margin-top: 6%;
    }
    .about-right h3{
        font-size: 16px;
        margin-top: 4%;
    }
}