.hasOpen{
    width: 100%;
    height: 100%;
    position: relative;
}
.hasOpen:after{
    content: "-"!important;
}
.header_over_active{
    opacity: 1!important;
    visibility: visible!important;
    z-index: 50!important;
}
@media only screen and (max-width: 500px) {
    .heard_box {
        position: fixed;
        top: 0;
        left: 0;
        z-index: 99;
        width: 100%;
        box-sizing: border-box;
        height: 50px;
        background: transparent;
    }
    .heard_parent {
        height: 100%;
        width: 100%;
        margin: 0 auto;
        box-sizing: border-box;
        display: flex;
        align-items: center;
        padding: 0 22px 0 27px;

    }
    .heard_top{
        display: none;
    }
    .heard{
        width: 100%;
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        position: relative;
    }
    .heard_left{
        width: 186px;
        height: 25px;
        background: url('../../img/heard/logo1.png') no-repeat;
        background-size: 100% 100%;
    }
    .wap{
        width: 18px;
        height: 15px;
        background: url('../../img/heard/wapIcon.png') no-repeat;
        background-size: 100% 100%;
    }
    .content_parent {
        position: fixed;
        width: 100vw;
        top: 41px;
        left: -100vw;
        height:calc(100vh - 41px);
        background: rgba(0, 0, 0, .3);
        transition: all 0.4s ease;
        z-index: 99;
    }
    .content {
        width: 60%;
        height:100%;
        background: rgba(0, 0, 0, .5);
        overflow-y: auto;
    }
    .content_item {
        width: 80%;
        margin: 0 auto;
        min-height: 61px;
        line-height: 61px;
        font-size: 16px;
        color: #F3F3F3;
        border-bottom:1px dashed rgba(255,255,255,.5);
        list-style-type:none;
        position: relative;
    }
    .bottom_box{
        width: 100%;
        height: 0;
        transition: height 0.5s ease;
        overflow: hidden;
    }
    .heard_bottom_item{
        width: 100%;
        height: 61px;
        line-height: 61px;
        font-size: 14px;
        color: #F3F3F3;
        border-top:1px dashed rgba(255,255,255,.5);
        list-style-type:none;
        box-sizing: border-box;
        padding-left: 21px;
    }
    .heard_item_bottom1{
        width: 100%;
        height: 61px;
        line-height: 61px;
        font-size: 16px;
        color: #F3F3F3;
        list-style-type:none;
        box-sizing: border-box;
    }
    .heard_item_bottom:after{
        display: block;
        content: "+";
        height: 100%;
        text-align: center;
        position: absolute;
        top: 0;
        right: 40px;
        /*transform: translateY(-50%);*/
        font-weight: 300;
        font-size: 25px;
        color: #FFFFFF;
    }
}
@media only screen and (min-width: 501px) and (max-width: 860px) {
    .heard_box {
        position: fixed;
        top: 0;
        left: 0;
        z-index: 99;
        width: 100%;
        box-sizing: border-box;
        height: 82px;
    }
    .heard_parent {
        height: 100%;
        width: 100%;
        margin: 0 auto;
        box-sizing: border-box;
        display: flex;
        align-items: center;
        padding: 0 45px 0 55px;

    }
    .heard_top{
        display: none;
    }
    .heard{
        width: 100%;
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        position: relative;
    }
    .heard_left{
        width: 373px;
        height: 50px;
        background: url('../../img/heard/logo1.png') no-repeat;
        background-size: 100% 100%;
    }
    .wap{
        width: 36px;
        height: 29px;
        background: url('../../img/heard/wapIcon.png') no-repeat;
        background-size: 100% 100%;
    }
    .content_parent {
        position: fixed;
        width: 100vw;
        top: 81px;
        left: -100vw;
        height:calc(100vh - 81px);
        background: rgba(0, 0, 0, .3);
        transition: all 0.4s ease;
        z-index: 99;
    }
    .content {
        width: 60%;
        height:100%;
        background: rgba(0, 0, 0, .5);
        overflow-y: auto;
    }
    .content_item {
        width: 80%;
        margin: 0 auto;
        min-height: 61px;
        line-height: 61px;
        font-size: 20px;
        color: #F3F3F3;
        border-bottom:1px dashed rgba(255,255,255,.5);
        list-style-type:none;
        position: relative;
    }
    .bottom_box{
        width: 100%;
        height: 0;
        transition: height 0.5s ease;
        overflow: hidden;
    }
    .heard_bottom_item{
        width: 100%;
        height: 61px;
        line-height: 61px;
        font-size: 18px;
        color: #F3F3F3;
        border-top:1px dashed rgba(255,255,255,.5);
        list-style-type:none;
        box-sizing: border-box;
        padding-left: 21px;
    }
    .heard_item_bottom1{
        width: 100%;
        height: 61px;
        line-height: 61px;
        font-size: 20px;
        color: #F3F3F3;
        list-style-type:none;
        box-sizing: border-box;
    }
    .heard_item_bottom:after{
        display: block;
        content: "+";
        height: 100%;
        text-align: center;
        position: absolute;
        top: 0;
        right: 40px;
        /*transform: translateY(-50%);*/
        font-weight: 300;
        font-size: 25px;
        color: #FFFFFF;
    }
}
@media only screen and (min-width: 861px) and (max-width: 1023px) {
    .heard_box {
        position: fixed;
        top: 0;
        left: 0;
        z-index: 99;
        width: 100%;
        box-sizing: border-box;
        min-height:0;
        background: transparent;
    }
    .heard_parent {
        height: 81px;
        width: 100%;
        margin: 0 auto;
        box-sizing: border-box;
        display: flex;
        align-items: center;
        padding: 0 45px 0 55px;

    }
    .heard_top{
        display: none;
    }
    .heard{
        width: 100%;
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        position: relative;
    }
    .heard_left{
        width: 374px;
        height: 50px;
        background: url('../../img/heard/logo1.png') no-repeat;
        background-size: 100% 100%;
    }
    .wap{
        width: 48px;
        height: 39px;
        background: url('../../img/heard/wapIcon.png') no-repeat;
        background-size: 100% 100%;
    }
    .content_parent {
        position: fixed;
        width: 100vw;
        top: 81px;
        left: -100vw;
        height:calc(100vh - 81px);
        background: rgba(0, 0, 0, .3);
        transition: all 0.4s ease;
        z-index: 99;
    }
    .content {
        width: 60%;
        height:100%;
        background: rgba(0, 0, 0, .5);
        overflow-y: auto;
    }
    .content_item {
        width: 80%;
        margin: 0 auto;
        min-height: 61px;
        line-height: 61px;
        font-size: 20px;
        color: #F3F3F3;
        border-bottom:1px dashed rgba(255,255,255,.5);
        list-style-type:none;
        position: relative;
    }
    .bottom_box{
        width: 100%;
        height: 0;
        transition: height 0.5s ease;
        overflow: hidden;
    }
    .heard_bottom_item{
        width: 100%;
        height: 61px;
        line-height: 61px;
        font-size: 18px;
        color: #F3F3F3;
        border-top:1px dashed rgba(255,255,255,.5);
        list-style-type:none;
        box-sizing: border-box;
        padding-left: 21px;
    }
    .heard_item_bottom1{
        width: 100%;
        height: 61px;
        line-height: 61px;
        font-size: 20px;
        color: #F3F3F3;
        list-style-type:none;
        box-sizing: border-box;
    }
    .heard_item_bottom:after{
        display: block;
        content: "+";
        height: 100%;
        text-align: center;
        position: absolute;
        top: 0;
        right: 40px;
        /*transform: translateY(-50%);*/
        font-weight: 300;
        font-size: 25px;
        color: #FFFFFF;
    }

}
@media only screen and (min-width: 1024px) and (max-width: 1279px) {
    #header_over{
        position: fixed;
        top: 0;
        left: 0;
         z-index: 2;
        width: 100%;
        height: 100%;
        background-color:rgba(0, 0, 0, .7);
        opacity: 0;
        visibility: hidden;
        transition: .5s;
    }
    .heard_box {
        position: fixed;
        top: 0;
        left: 0;
        z-index: 99;
        height: 116px;
        width: 100%;
        box-sizing: border-box;
        min-height:0;
    }
    .heard_box::after{
        content: '';
        position: absolute;
        left: 0;
        top: 100%;
        right: 0;
        height: 0;
        background: rgba(255, 255, 255, 0.95);
        transition: all ease .5s;
        z-index: -1;
        box-shadow: 3px 3px 3px rgb(0 0 0 / 10%);
        box-sizing: border-box;
        overflow: hidden;
    }
    .heard_box:hover::after{
        height: 400px;
    }
    .heard_parent {
        width: 95%;
        height: inherit;
        margin: 0 auto;
        box-sizing: border-box;
        border-bottom: 1px solid rgba(255, 255, 255, 0);
    }
    .heard_top{
        width: 100%;
        height: 49px;
        display: flex;
        align-items: center;
        justify-content: flex-end;
        box-sizing: border-box;
        padding-right: 20px;
    }
    .heard_top_left{
        display: flex;
        align-items: center;
    }
    .heard_top_left_text{
        font-weight: 400;
        font-size: 15px;
        color: #FFFFFF;
        padding-left: 11px;
    }
    .heard_top_left_img{
        width: 21px;
        height: 21px;
        background: url("../../img/heard/icon.png") no-repeat;
        background-size: 100% 100%;
    }
    .heard_top_left_img1{
        width: 21px;
        height: 21px;
        background: url("../../img/heard/icon1.png") no-repeat;
        background-size: 100% 100%;
        margin-left: 36px;
    }
    .heard_top_right{
        width: 210px;
        height: 34px;
        margin-left: 25px;
        position: relative;
    }
    .heard_top_right_search{
        position: absolute;
        top: 50%;
        right: 11px;
        transform: translateY(-50%);
        content: "";
        display: block;
        width: 24px;
        height: 24px;
        background: url("../../img/heard/search.png") no-repeat;
        background-size: 100% 100%;
        cursor: pointer;
        z-index: 3;
    }
    .heard_top_right input{
        width: 100%;
        height: 100%;
        outline: none;
        border-radius: 17px;
        border: 1px solid #D0D0D0;
        text-indent: 1em;
    }
    .heard {
        width: 100%;
        height: 67px;
        display: flex;
        align-items: center;
    }
    .heard_left {
        width: 250px;
        height: 61px;
        background: url("../../img/heard/logo.png") no-repeat;
        background-size: 100% 100%;
        margin-top: -16px;
    }
    .content_parent {
        flex: 1;
        margin-left: 15px;
        box-sizing: border-box;
        height: 100%;
    }
    .content {
        width: 100%;
        height: 100%;
        display: flex;
        align-items: center;
        cursor: pointer;
    }
    .content_item:hover{
        color: #0769B2;
    }
    .content_item {
        flex: 1;
        list-style-type:none;
        position: relative;
        line-height: 67px;
    }
    .heard_item_bottom{
        width: 100%;
        height: 100%;
        font-weight: 500;
        font-size: 15px;
        color: #000000;
        text-align: center;
    }
    .heard_item_bottom1{
        width: 100%;
        height: 100%;
        font-weight: 500;
        font-size: 15px;
        color: #000000;
        text-align: center;
        list-style-type:none;
    }
    .bottom_box{
        opacity: 0;
        width: 100%;
        position: absolute;
        top: 100%;
        left: 50%;
        z-index: 99;
        transition: all ease .3s 0s;
        padding: 15px 0;
        height: 400px;
        box-sizing: border-box;
        pointer-events: none;
    }
    .heard_box:hover .bottom_box{
        opacity: 1;
        transform: translateX(-50%);
        transition-duration: .5s;
        pointer-events:auto;
    }

    .heard_bottom_item{
        width: 100%;
        height: 61px;
        line-height: 61px;
        font-size: 12px;
        color: #333333;
        list-style-type:none;
        box-sizing: border-box;
        text-align: center;
        transition: all ease .3s 0s;
    }
    .heard_bottom_item:hover{
        color: #0769B2;
    }
    .content_item:hover>.bottom_box{
        background: #FFFFFF;
    }
}
@media only screen and (min-width: 1280px) and (max-width: 1500px) {
    #header_over{
        position: fixed;
        top: 0;
        left: 0;
         z-index: 2;
        width: 100%;
        height: 100%;
        background-color:rgba(0, 0, 0, .7);
        opacity: 0;
        visibility: hidden;
        transition: .5s;
    }
    .heard_box {
        position: fixed;
        top: 0;
        left: 0;
        z-index: 99;
        height: 116px;
        width: 100%;
        box-sizing: border-box;
        min-height:0;
    }
    .heard_box::after{
        content: '';
        position: absolute;
        left: 0;
        top: 100%;
        right: 0;
        height: 0;
        background: rgba(255, 255, 255, 0.95);
        transition: all ease .5s;
        z-index: -1;
        box-shadow: 3px 3px 3px rgb(0 0 0 / 10%);
        box-sizing: border-box;
        overflow: hidden;
    }
    .heard_box:hover::after{
        height: 400px;
    }
    .heard_parent {
        width: 95%;
        height: inherit;
        margin: 0 auto;
        box-sizing: border-box;
        border-bottom: 1px solid rgba(255, 255, 255, 0);
    }
    .heard_top{
        width: 100%;
        height: 49px;
        display: flex;
        align-items: center;
        justify-content: flex-end;
        box-sizing: border-box;
        padding-right: 20px;
    }
    .heard_top_left{
        display: flex;
        align-items: center;
    }
    .heard_top_left_text{
        font-weight: 400;
        font-size: 16px;
        color: #FFFFFF;
        padding-left: 11px;
    }
    .heard_top_left_img{
        width: 21px;
        height: 21px;
        background: url("../../img/heard/icon.png") no-repeat;
        background-size: 100% 100%;
    }
    .heard_top_left_img1{
        width: 21px;
        height: 21px;
        background: url("../../img/heard/icon1.png") no-repeat;
        background-size: 100% 100%;
        margin-left: 36px;
    }
    .heard_top_right{
        width: 210px;
        height: 34px;
        margin-left: 25px;
        position: relative;
    }
    .heard_top_right_search{
        position: absolute;
        top: 50%;
        right: 11px;
        transform: translateY(-50%);
        content: "";
        display: block;
        width: 24px;
        height: 24px;
        background: url("../../img/heard/search.png") no-repeat;
        background-size: 100% 100%;
        cursor: pointer;
        z-index: 3;
    }
    .heard_top_right input{
        width: 100%;
        height: 100%;
        outline: none;
        border-radius: 17px;
        border: 1px solid #D0D0D0;
        text-indent: 1em;
    }
    .heard {
        width: 100%;
        height: 67px;
        display: flex;
        align-items: center;
    }
    .heard_left {
        width: 300px;
        height: 61px;
        background: url("../../img/heard/logo.png") no-repeat;
        background-size: 100% 100%;
        margin-top: -16px;
    }
    .content_parent {
        flex: 1;
        margin-left: 35px;
        box-sizing: border-box;
        height: 100%;
    }
    .content {
        width: 100%;
        height: 100%;
        display: flex;
        align-items: center;
        cursor: pointer;
    }
    .content_item:hover{
        color: #0769B2;
    }
    .content_item {
        flex: 1;
        list-style-type:none;
        position: relative;
        line-height: 67px;
    }
    .heard_item_bottom{
        width: 100%;
        height: 100%;
        font-weight: 500;
        font-size: 18px;
        color: #000000;
        text-align: center;
    }
    .heard_item_bottom1{
        width: 100%;
        height: 100%;
        font-weight: 500;
        font-size: 16px;
        color: #000000;
        text-align: center;
    }
    .bottom_box{
        opacity: 0;
        width: 100%;
        position: absolute;
        top: 100%;
        left: 50%;
        z-index: 99;
        transition: all ease .3s 0s;
        padding: 15px 0;
        height: 400px;
        box-sizing: border-box;
        pointer-events: none;
    }
    .heard_box:hover .bottom_box{
        opacity: 1;
        transform: translateX(-50%);
        transition-duration: .5s;
        pointer-events:auto;
    }
    .heard_bottom_item{
        width: 100%;
        height: 61px;
        line-height: 61px;
        font-size: 14px;
        color: #333333;
        list-style-type:none;
        box-sizing: border-box;
        text-align: center;
        transition: all ease .3s 0s;
    }
    .heard_bottom_item:hover{
        color: #0769B2;
    }
}
@media only screen and (min-width: 1501px) and (max-width: 1700px)  {
    #header_over{
        position: fixed;
        top: 0;
        left: 0;
         z-index: 2;
        width: 100%;
        height: 100%;
        background-color:rgba(0, 0, 0, .7);
        opacity: 0;
        visibility: hidden;
        transition: .5s;
    }
    .heard_box {
        position: fixed;
        top: 0;
        left: 0;
        z-index: 99;
        height: 116px;
        width: 100%;
        box-sizing: border-box;
        min-height:0;
    }
    .heard_box::after{
        content: '';
        position: absolute;
        left: 0;
        top: 100%;
        right: 0;
        height: 0;
        background: rgba(255, 255, 255, 0.95);
        transition: all ease .5s;
        z-index: -1;
        box-shadow: 3px 3px 3px rgb(0 0 0 / 10%);
        box-sizing: border-box;
        overflow: hidden;
    }
    .heard_box:hover::after{
        height: 400px;
    }
    .heard_parent {
        width: 90%;
        height: inherit;
        margin: 0 auto;
        box-sizing: border-box;
        border-bottom: 1px solid rgba(255, 255, 255, 0);
    }
    .heard_top{
        width: 100%;
        height: 49px;
        display: flex;
        align-items: center;
        justify-content: flex-end;
        box-sizing: border-box;
        padding-right: 20px;
    }
    .heard_top_left{
        display: flex;
        align-items: center;
    }
    .heard_top_left_text{
        font-weight: 400;
        font-size: 14px;
        color: #FFFFFF;
        padding-left: 11px;
    }
    .heard_top_left_img{
        width: 21px;
        height: 21px;
        background: url("../../img/heard/icon.png") no-repeat;
        background-size: 100% 100%;
    }
    .heard_top_left_img1{
        width: 21px;
        height: 21px;
        background: url("../../img/heard/icon1.png") no-repeat;
        background-size: 100% 100%;
        margin-left: 36px;
    }
    .heard_top_right{
        width: 210px;
        height: 34px;
        margin-left: 25px;
        position: relative;
    }
    .heard_top_right_search{
        position: absolute;
        top: 50%;
        right: 11px;
        transform: translateY(-50%);
        content: "";
        display: block;
        width: 24px;
        height: 24px;
        background: url("../../img/heard/search.png") no-repeat;
        background-size: 100% 100%;
        cursor: pointer;
        z-index: 3;
    }
    .heard_top_right input{
        width: 100%;
        height: 100%;
        outline: none;
        border-radius: 17px;
        border: 1px solid #D0D0D0;
        text-indent: 1em;
    }
    .heard {
        width: 100%;
        height: 67px;
        display: flex;
        align-items: center;
    }
    .heard_left {
        width: 400px;
        height: 50px;
        background: url("../../img/heard/logo.png") no-repeat;
        background-size: 100% 100%;
        margin-top: -16px;
    }
    .content_parent {
        flex: 1;
        margin-left: 85px;
        box-sizing: border-box;
        height: 100%;
    }
    .content {
        width: 100%;
        height: 100%;
        display: flex;
        align-items: center;
        cursor: pointer;
    }
    .content_item:hover{
        color: #0769B2;
    }
    .content_item:hover>.bottom_box{
        background: #FFFFFF;
    }
    .content_item {
        flex: 1;
        list-style-type:none;
        position: relative;
        line-height: 67px;
    }
    .heard_item_bottom{
        width: 100%;
        height: 100%;
        font-weight: 500;
        font-size: 18px;
        color: #000000;
        text-align: center;
    }
    .heard_item_bottom1{
        width: 100%;
        height: 100%;
        font-weight: 500;
        font-size: 18px;
        color: #000000;
        text-align: center;
    }
    .bottom_box{
        opacity: 0;
        width: 100%;
        position: absolute;
        top: 100%;
        left: 50%;
        z-index: 99;
        transition: all ease .3s 0s;
        padding: 15px 0;
        height: 400px;
        box-sizing: border-box;
        pointer-events: none;
    }
    .heard_box:hover .bottom_box{
        opacity: 1;
        transform: translateX(-50%);
        transition-duration: .5s;
        pointer-events:auto;
    }
    .heard_bottom_item{
        width: 100%;
        height: 61px;
        line-height: 61px;
        font-size: 16px;
        color: #333333;
        list-style-type:none;
        box-sizing: border-box;
        text-align: center;
        transition: all ease .3s 0s;
    }
    .heard_bottom_item:hover{
        color: #0769B2;
    }
}
@media only screen and (min-width: 1701px)  {
    #header_over{
        position: fixed;
        top: 0;
        left: 0;
         z-index: 2;
        width: 100%;
        height: 100%;
        background-color:rgba(0, 0, 0, .7);
        opacity: 0;
        visibility: hidden;
        transition: .5s;
    }
    .heard_box {
        position: fixed;
        top: 0;
        left: 0;
        z-index: 99;
        height: 116px;
        width: 100%;
        box-sizing: border-box;
        min-height:0;
    }
    .heard_box::after{
        content: '';
        position: absolute;
        left: 0;
        top: 100%;
        right: 0;
        height: 0;
        background: rgba(255, 255, 255, 0.95);
        transition: all ease .5s;
        z-index: -1;
        box-shadow: 3px 3px 3px rgb(0 0 0 / 10%);
        box-sizing: border-box;
        overflow: hidden;
    }
    .heard_box:hover::after{
        height: 400px;
    }
    .heard_parent {
        width: 1606px;
        height: inherit;
        margin: 0 auto;
        box-sizing: border-box;
        border-bottom: 1px solid rgba(255, 255, 255, 0);
    }
    .heard_top{
        width: 100%;
        height: 49px;
        display: flex;
        align-items: center;
        justify-content: flex-end;
        box-sizing: border-box;
        padding-right: 20px;
    }
    .heard_top_left{
        display: flex;
        align-items: center;
    }
    .heard_top_left_text{
        font-weight: 400;
        font-size: 16px;
        color: #FFFFFF;
        padding-left: 11px;
    }
    .heard_top_left_img{
        width: 21px;
        height: 21px;
        background: url("../../img/heard/icon.png") no-repeat;
        background-size: 100% 100%;
    }
    .heard_top_left_img1{
        width: 21px;
        height: 21px;
        background: url("../../img/heard/icon1.png") no-repeat;
        background-size: 100% 100%;
        margin-left: 36px;
    }
    .heard_top_right{
        width: 210px;
        height: 34px;
        margin-left: 25px;
        position: relative;
    }
    .heard_top_right_search{
        position: absolute;
        top: 50%;
        right: 11px;
        transform: translateY(-50%);
        content: "";
        display: block;
        width: 24px;
        height: 24px;
        background: url("../../img/heard/search.png") no-repeat;
        background-size: 100% 100%;
        cursor: pointer;
        z-index: 3;
    }
    .heard_top_right input{
        width: 100%;
        height: 100%;
        outline: none;
        border-radius: 17px;
        border: 1px solid #D0D0D0;
        text-indent: 1em;
    }
    .heard {
        width: 100%;
        height: 67px;
        display: flex;
        align-items: center;
    }
    .heard_left {
        width: 461px;
        height: 61px;
        background: url("../../img/heard/logo.png") no-repeat;
        background-size: 100% 100%;
        margin-top: -16px;
    }
    .content_parent {
        flex: 1;
        margin-left: 135px;
        box-sizing: border-box;
        height: 100%;
    }
    .content {
        width: 100%;
        height: 100%;
        display: flex;
        align-items: center;
        cursor: pointer;
    }
    .content_item:hover{
        color: #0769B2;
    }
    .content_item:hover>.bottom_box{
        background: #FFFFFF;
    }
    .content_item {
        flex: 1;
        list-style-type:none;
        position: relative;
        line-height: 67px;
    }
    .heard_item_bottom1{
        width: 100%;
        height: 100%;
        font-weight: 500;
        font-size: 20px;
        color: #000000;
        text-align: center;
    }
    .heard_item_bottom{
        width: 100%;
        height: 100%;
        font-weight: 500;
        font-size: 20px;
        color: #000000;
        text-align: center;
    }
    .bottom_box{
        opacity: 0;
        width: 100%;
        position: absolute;
        top: 100%;
        left: 50%;
        z-index: 99;
        transition: all ease .3s 0s;
        padding: 15px 0;
        height: 400px;
        box-sizing: border-box;
        pointer-events: none;
    }
    .heard_box:hover .bottom_box{
        opacity: 1;
        transform: translateX(-50%);
        transition-duration: .5s;
        pointer-events:auto;
    }
    .heard_bottom_item{
        width: 100%;
        height: 61px;
        line-height: 61px;
        font-size: 16px;
        color: #333333;
        list-style-type:none;
        box-sizing: border-box;
        text-align: center;
        transition: all ease .3s 0s;
    }
    .heard_bottom_item:hover{
        color: #0769B2;
    }
}