* {
    padding: 0;
    margin: 0;
}

li {
    list-style: none;
}

a {
    text-decoration: none;
}
 
 

.leftNav {
    float: left;
    width: 260px;
    background: #f9f9f9;
    position: relative;
    margin-right: 55px;
}

.leftNav>h2 {
    line-height: 85px;
    text-align: center;
    color: #fff;
    background: #0e4f8f;
    background-size: cover;
    background-position: center center;
    font-size: 36px;
    overflow: hidden;
    font-weight: 600;
}

.leftNav p {
    margin-left: 20px;
    font-size: 26px;
    font-weight: 600;
    color: #fff;
    padding: 20px 0;
}

.leftNav>ul {
    padding-bottom: 60px;
}

.leftNav ul li {
    position: relative;
    padding-left: 30px;
    border-left: 4px solid transparent;
    transition: all 0.3s;
}

.leftNav ul li a {
    display: block;
    font-size: 18px;
    color: #333333;
    line-height: 80px;
    font-weight: 600;
    border-bottom: 1px solid #ededed;
}

.leftNav>ul>li>span {
    position: absolute;
    width: 20px;
    height: 20px;
    right: 10px;
    top: 30px;
    line-height: 50px;
    background: url(../images/sub_left_down.png) no-repeat center center;
    background-size: 15px;
    cursor: pointer;
    transition: all .3s;
}

.leftNav>ul>li.on>span {
    transform: rotate(90deg);
}

.leftNav>ul>li.activ {
    background: #dadada;
}
 

.leftNav ul li:hover {
    background: #f0f0f0;
}

.leftNav ul li.on.active {
    background: #fff;
    border-left: 4px solid #0e4f8f;
}
.leftNav ul li.on{
    background: #fff;
    border-left: 4px solid #0e4f8f;
}
.leftNav ul li.active ul {
    display: block;
}

 

.leftNav>ul>li>ul {
    display: none;
    padding-top: 0;
    padding-bottom: 0;
    padding-right: 0;
}
.leftNav>ul>li>ul>li{
    border: none;
}
.leftNav>ul>li>ul>li>a {
    font-size: 16px;
    font-weight: normal;
    line-height: 60px;
    border: none;
}

@media screen and (max-width:1024px){
    .leftNav>h2 {
        line-height: 120px;
        font-size: 26px;
    }
     .leftNav {
        margin-right: 30px;
        width: 240px;
    }
     .leftNav ul li a {
        font-size: 16px;
    }
    .leftNav>ul>li>ul>li>a{
        font-size: 14px;
        line-height: 48px;
    }
    .leftNav ul li{
        padding-left: 20px;
    }
  

}

@media screen and (max-width:768px){
   
    .leftNav {
        float: none;
        width: auto;
        top: 0;
        margin-right: 0;
    }
    .leftNav>h2 {
        line-height: 60px;
        font-size: 20px;
        text-align: left;
        padding-left: 15px;
        font-weight: 600;
    }
    .leftNav>h2 span {
        float: right;
        width: 30px;
        height: 30px;
        margin-top: 15px;
        background: url(../images/sub_left_down2.png) no-repeat center center;
        background-position: center center;
    }
    .leftNav>h2 span.on {
        background: url(../images/sub_left_up2.png) no-repeat center center;
        background-position: center center;
    }
  
    
    .leftNav>p {
        font-size: 18px;
        padding: 10px 0;
    }
    .leftNav ul {
        display: none;
    }
    .leftNav ul li a {
        line-height: 55px;
    }
    .leftNav>ul>li>span {
        top: 13px;
    }
}