/* 首页，二级，三级通用 自适应样式 */


/* 中等屏幕 */

@media screen and (max-width:993px) {
  .header{
	height:130px;}  
  .burger {
        display: block;}

    .head-right{
        display:none;}

    ._slide {
        height: 40vh!important;}
    .fixed-nav {
        display: none;}
    .foot {
        height: 350px;
        background: url(../images/logo_bg.jpg) center;}
}

.head-left .sj{
display:none;
}
/* 平板 */

@media screen and (max-width:769px) {
.head-left .pc{
display:none;
}
.head-left .sj{
display:initial;
}
.burger{
top:4%;}   
.header{
height:110px;}
.head-left img{
width:360px;}

.head-mid{

display:none;}
    .foot_left,
    .foot_right {
        padding: 20px 35px 0px;}
    .foot {
        height: 480px;
        background: url(../images/logo_bg.jpg) center;}
}


/* 手机 */

@media screen and (max-width:450px) {
    .burger{

      top:3%;}
    .header {
        height: 100px;}
      ._slide {
        height: 20vh!important;}
    #prev,
    #next {
        opacity: 0;}
    .head-mid img {
        display: none;}
    .burger {
        display: block;
        right:35px;}
    .foot .row {
        display: unset;
        align-items: unset;}
    .foot .foot_left,
    .foot_right {
        padding: 0 40px;}
    .foot .foot_left {
        padding: 20px 40px 0;}
    .foot .row div:nth-child(n+2) {
        font-size: 14px;
        line-height: 14px;}
    .foot .foot_right div:nth-child(1)::before {
        top: 70%;
        left: 10%;}
    .foot .foot_right div:nth-child(1)::after {
        top: 70%;
        left: 10%;}
   .nbanner a {
        height: 150px!important;}
    .nbanner,
    .nbanner a {
        background-attachment: unset!important;}
}