/*
1919px [1920×1080]
*/
@media only screen and (max-width: 1919px) {

}
/*
1800px 过渡尺寸
*/
@media only screen and (max-width: 1800px){
html{ font-size: 90px; }
}
/*
1680px [1680×1050]
*/
@media only screen and (max-width: 1680px) {
html{ font-size: 80px; }

}

/*
1500px 过渡尺寸
*/
@media only screen and (max-width: 1500px) {

}
/*
1600px [1600×900]
*/
@media only screen and (max-width: 1600px) {


}

/*
1440px [1400×900]
*/
@media only screen and (max-width: 1440px) {


}

/*
1400px 过渡尺寸
*/
@media only screen and (max-width: 1400px) {
html{ font-size: 70px; }
}


/*
1366px [1366×768]
*/
@media only screen and (max-width: 1366px) {

}

/*
1280px [1280×1024] [1280×800]
*/
@media only screen and (max-width: 1280px) {



}
/*
1200px 过渡尺寸
*/
@media only screen and (max-width: 1230px) {
html{ font-size: 60px; }
.w1200{ width: 96%; }
.top{ display: none; }
.dian{ height: 50px; }
.sp_header{ display: block; }
span.spanpagelist{ display:none}
span.spanpagejump{ display:none}
.page_fy a {padding: 5px 10px; border: #eee 1px solid;}
.n_dh,.product_dh {

	white-space: nowrap;
	/*设置横向滚动*/
	overflow-x: scroll;
	/*禁止纵向滚动*/
	overflow-y: hidden;
	/*设置边距改变效果为内缩*/
	box-sizing: border-box; margin:20px auto;
}

.n_dh::-webkit-scrollbar,.product_dh::-webkit-scrollbar {display: none;}

.product_dh li{ display: inline-block; width: auto; float: none; }
.product_dh li a{ width: auto; padding: 0 15px; }



.banner .swiper-button-next, .banner .swiper-button-prev{ display: none; }

.case_list li:nth-child(6) a{ height: 40px; line-height: 40px; }
.pic_list li .img{ padding:10px; }
.ad .text h3{ font-size: 24px; }
.ad .text p{ font-size: 20px; margin:5px auto 10px auto; }
.ad .text em{ font-size: 16px; }
.box{ padding:20px 0; }
.foot_nr dl{ width: 33%; }
.pic_list{ margin:20px auto 0 auto; }
.left{ width: 25%; margin-right: 2%; }
.index_fenlei li .pic .con{ display: none; }
}

/*
1100px 过渡
*/
@media only screen and (max-width: 1100px) {


}

/*
1024px [1024×768] ipad1 ipad2 ipad mini 手机端开始
*/
@media only screen and (max-width: 1024px) {

}

/*
1000px 过渡
*/
@media only screen and (max-width: 1000px) {


}

/* 900px 过渡 */
@media only screen and (max-width: 900px) {


}

/* 800px 竖屏 安卓平板 */
@media only screen and (max-width: 800px) {
.foot_nr{ display: none; }
.bq{ padding-top: 0; border:none; }
.link{ margin:20px auto;  height: 60px; }
.link li{ width: 120px; }
.left{ display: none; }
}

/* 768px 竖屏 ipad mini */
@media only screen and (max-width: 767px) {
.tong_connr img{ width: auto!important; height: auto!important; display: block; }
.pic_list li{ width: 48.5%; margin:0 auto 10px auto; }
.pic_list li:nth-child(2n) { float: right; }
.pic_list li h3{ font-size: 14px; }
.case_list li{ float: none; width: 100%; margin:0 auto 10px auto; }
.case_list li:nth-child(2),.case_list li:nth-child(5){ width: 49%; float: left; }
.case_list li:nth-child(3),.case_list li:nth-child(6){ width: 49%; float: right; }
.case_list li:nth-child(4){float: none; width: 100%; margin:10px auto; }
.case_list li:nth-child(6) a{ }
.case_list li:nth-child(5){ margin:auto; }
.case_list li:nth-child(6){ margin:auto; position: relative; height: auto; }
.case_list li:nth-child(6) .pic span{ padding-top: 77.4%; }
.case_list li:nth-child(6) i{ display: none; }
.case_list li:nth-child(6) .text{display: flex; align-items: center; }
.case_list li:nth-child(6) p{ width: 100%; }
.news_list li{ float: none; width: 100%; margin: 0 auto 20px auto; }
.index_fenlei li,.index_fenlei li .text i{ font-size: 14px; }
.index_dh b{ font-size: 20px; }
.index_dh h2{ font-size: 18px; }
.pic_list1 li{ width: 49%; margin:0 auto 10px auto; }
.pic_list1 li:nth-child(2n) { float: right; }
.piao1{ display: block; }
.foot{ padding-bottom:70px; }
.bq span{ display: block; }
.pic_list2 {grid-template-columns: repeat(2, 1fr);  gap:10px;}
}



/* 700px 过渡 */
@media only screen and (max-width: 700px) {





}

/* 640px 过渡 */
@media only screen and (max-width:640px){


}
/* 绝对手机模式 */
@media only screen and (max-width: 600px) {

}

/* 苹果s */
@media only screen and (max-width: 414px) {

}

/* 苹果普通、X */
@media only screen and (max-width: 375px) {

}

/* 安卓小屏 */
@media only screen and (max-width: 360px) {


}

/* 苹果5 */
@media only screen and (max-width: 320px) {
body{ font-size: 12px; }

}

/*手机横屏*/
@media (max-width:850px) and (max-height:414px) {


}

@media (max-width:600px) and (max-height:320px) {

}