*{
    margin: 0;
    padding: 0;
}
.zkrb_header{
    width: 100%;
    height: 420px;
}
.zkrb_header img{
    width: 100%;
    height: 420px;
}
.zkrb_nav{
    width: 1200px;
    height: 50px;
    margin: 0 auto;
    line-height: 50px;
    border-bottom:2px solid #ccc;
    display: flex;
}
.zkrb_nav .zkrb_nav_title{
    color: #999;
    width: 200px;
    justify-content: flex-start;
    display: flex;
}
.zkrb_nav .zkrb_nav_title span:hover{
    color: #0F9932;
}
.zkrb_nav_search{
    flex:1;
    margin-top: 5px;
    justify-content: flex-end;
    display: flex;
}
.zkrb_nav_search .search-button{
    position: relative;
    right: 51px;
    /* top: 1px; */
    width: 51px;
    border-radius: 5px;
    background-color: #fff;
    height: 47px;
}
.zkrb_nav .zkrb_text{
    width: 300px;
    height: 45px;
    border: 1px solid #97a3b6;
    border-radius: 5px;
    margin-left: 15px;
}

.option{
    width: 100px;
    height: 32px;
    /*border: 1px solid #cccccc;*/
    position: relative;
    margin-top: 7px;

}
.option select{
    /*清除select的边框样式*/
    border: none;
    /*清除select聚焦时候的边框颜色*/
    outline: none;
    /*将select的宽高等于div的宽高*/
    width: 100%;
    height: 32px;
    line-height: 32px;
    display: inherit;
    /*隐藏select的下拉图标*/
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    /*通过padding-left的值让文字居中*/
    /*padding: 0px 0 0 20px;*/
}
/*使用伪类给select添加自己想用的图标*/
.option:after{
    content: "";
    width: 14px;
    height: 8px;
    background: url(../images/icon/xia_jiantou.png) no-repeat center;
    background-size: 20px;
    /*通过定位将图标放在合适的位置*/
    position: absolute;
    right: 20px;
    top: 41%;
    /*给自定义的图标实现点击下来功能*/
    pointer-events: none;
}


.zkrb_content{
    width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap:wrap;
}
.zkrb_content_box{
    width: 385px;
    height: 285px;
    margin: 40px 0 0 12px;
    border: 1px solid #D6D6D6;
    border-radius: 5px;
}
.zkrb_content_box img{
    width: 100%;
    height: 190px;
}
.zkrb_content .zkrb_content_box_type {
    position: relative;
    bottom: 34px;
    height: 30px;
    color: #fff;
    line-height: 30px;
    text-indent: 2em;
    background: linear-gradient(to right, #212528 0,transparent 150%);
}
.zkrb_content .zkrb_content_box p{
    text-indent: 2em;
    font-weight: bold;
}
a{
    text-decoration:none;
    color:#333;
}

/*.zkrb_content .zkrb_content_box:first-child*/
/*{*/
/*    background:#ff0000;*/
/*}*/