.back1{
    background: #f3f6ff;
}
.back2{
    background: #f3f6ff;
    padding: 50px 0;
}
.back2:nth-child(2n-1){
    background: #fff;
}
.back2title{
    font-size: 25px;
    font-weight: bold;
    margin-bottom: 40px;
    text-align: center;
}
.three{
    margin: 0 -15px;
}
.th_item{
    width: 33.3%;
    padding: 0 15px;
    float: left;
    box-sizing: border-box;
}
.thitembox{
    background: white;
    box-shadow:0 2px 5px rgba(0, 0, 0, 0.1);
    padding: 15px 20px;
}
.thitemsign{
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}
.thitemsign>img{
    width: 30px;
    height: 30px;
    margin-right: 10px;
}
.thphone{
    color: #00115e;
    font-weight: bold;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
}
.map{
    margin-top: 30px;
}
.map>img{
    width: 100%;
}
/*  */
.four{
    margin: 0 -10px;
}
.fourbox{
    width: 25%;
    padding: 0 10px;
    box-sizing: border-box;
    float: left;
}
.fouritem{
    background: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    padding: 30px 0px;
}
.fouritem>img{
    width: 50%;
    margin:0 auto;
}
.fourtext{
    text-align: center;
    font-size: 15px;
    margin-top: 20px;
}
/* 在线留言 */
.inputbox{
    background: white;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    padding: 10px;
    border-radius: 30px;
    margin-bottom: 20px;
    box-sizing: border-box;
}
.inwi5{
    width: 49%;
    float: left;
}
.widthinwi4{
    width: 2%;
    height: 25px;
    float: left;
}
.inputimg{
    display: flex;
    align-items: center;
    float: left;
    height: 25px;
    line-height: 25px;
}
.inputimg>img{
    width: 20px;
    height: 20px;
    margin-right: 10px;
}
.inwi5>input{
    float: right;
    width: calc(100% - 70px);
    outline: 0;
    border: 0;
    background: none;
    height: 25px;
    line-height: 25px;
    padding: 0;
}
.inputbox > textarea {
        width: 100%;
    height: 200px !important;
    outline: 0;
    border: 0;
    background: none;
    line-height: 25px;
    resize: none;

    font-family: '微软雅黑';
}
.submit{
    margin-top: 10px;
    background: #213360;
    color: white;
    text-align: center;
    padding: 10px;
    border-radius: 20px;
    height: 25px;
    line-height: 25px;
}
@media screen and (max-width:900px) {
    .th_item{
        width: 100%;
        padding: 0 15px;
        float: none;
        margin-bottom: 10px;
    }
    .fourbox{
        width: 50%;
        margin-bottom: 20px;
    }
}
@media screen and (max-width:600px) {
    .back2{
        background: #f3f6ff;
        padding: 20px 0;
    }
    .back2title{
        font-size: 20px;
        margin-bottom: 20px;
    }
    .inwi5{
        width: 100%;
        float: none;
    }
    .widthinwi4{
       display: none;
    }
    .inputbox>textarea{
        height: 120px !important;
    }
}