* {
    margin: 0;
    padding: 0;
    list-style: none;
    onFocus: "blur(this)";
    outline: none;
    border: none;
    background: none;
    vertical-align: top;
    box-sizing: border-box
}

body {
    font-family: Arial,Helvetica,sans-serif "微软雅黑";
    padding: 0;
    min-width: 1250px;
    margin: 0 auto
}

a {
    text-decoration: none;
    color: #999
}

a:hover {
    color: #333;
    text-decoration: none
}

.clear:after {
    content: ".";
    height: 0;
    display: block;
    visibility: hidden;
    clear: both
}

header,section,footer,aside,nav,main,article,figure {
    display: block
}

.flex {
    display: flex
}

.aic {
    align-items: center
}

.jcc {
    justify-content: center
}

.jcs {
    justify-content: space-between
}

.po_r {
    position: relative
}

img {
    display: block
}

.w100 {
    width: 100%
}

.allbg {
    background: url('https://c3plus.dahe.cn/file/49/lbqdjgw/img/wap/bg.jpg') center top no-repeat;
    background-size: 100% 100%;
    overflow: hidden
}

section {
    width: 100%;
    z-index: 10;
    position: relative;
}

.main_wrap {
     /* 改用百分比 */
    max-width: 1200px; /* 保留最大宽度限制 */
    margin: 0 auto;
}


.top_banner .main_wrap {
    padding-top: 50px;
    z-index: 2;
    position: relative;
}

.top_banner .main_wrap .logo_img {
    margin: 0 auto;
    width: 90%;
}

.top_banner .main_wrap .bt_img {
    margin: 100px auto 60px;
    width: 85%;
}
.top_banner .main_wrap .bt_img_wap {
    margin: 100px auto 36px;
    width: 85%;
}
.top_banner .main_wrap .desc_img {
    margin:0 auto 30px;
    width: 85%;
}
.top_banner .main_wrap .bt1_img {
    margin: 0 auto;
    width: 60%;
}
.top_banner .main_wrap .bt1_img_fanti {
    margin: 0 auto;
    width: 68%;
}
.top_banner .main_wrap .bt2_img{
    margin:0 auto;
    margin-top: 102vw;
    width: 90%;
}
.top_banner .main_wrap .bt2_img_fanti{
    margin:0 auto;
    margin-top: 94vw;
    width: 90%;
}
.zongxu{
   margin-top: -9vw;
}
.zongxu .main_wrap {
    position: relative;
}

.zongxu .zongxu_bt {
    width: 100%;
    position: absolute;
}


.zongxu .new_wrap,
.wenhua .new_wrap {
    width: 1092px;
    margin: 0 auto;
}
.zongxu_img1{
    margin: 5vw 0 0 20vw;
    padding-top: 16vw;
    width: 83%;
}
.zongxu_img2{
    margin: 5vw 0 0 0vw;
    width: 64%;
}
.zongxu_img3{
    margin: 5vw 0 0 33vw;
    width: 70%;
}
.zongxu_img4{
    margin: 5vw 0 0 -3vw;
    width: 100%;
}

.wenhua .wenhua_bt {
    padding: 5vw 2vw 0 2vw;
    width: 100%;
}
.wenhua_img1{
    margin-top: 5vw;
    width: 100%;
}
#certify {
	position: relative;
    overflow: hidden;
	width: 1092px;
	margin: 0 auto;
	padding-top: 28px;
}

/* #certify  .swiper-slide {
    width: 706px;
    height: 996px;
} */
#certify  .swiper-slide img{
	width: 100%;
    height: auto;
    /* max-height: 90vh;  */
    object-fit: contain; 
}

#certify .swiper-slide,
.yishuContent .swiper-slide {
    max-width: 846px;
    height: auto;
    aspect-ratio: 2/3;
    display: flex;
}

#certify .swiper-pagination {
	width: 100%;
	bottom: 20px;
}

#certify .swiper-pagination-bullets .swiper-pagination-bullet {
	margin: 0 5px;
	border: 3px solid #fff;
	background-color: #d5d5d5;
	width: 10px;
	height: 10px;
	opacity: 1;
}

#certify .swiper-pagination-bullets .swiper-pagination-bullet-active {
	border: 3px solid #00aadc;
	background-color: #fff;
}

#certify .swiper-button-prev {
    left: 20px;
    width: 60px;
    height: auto;
}



#certify .swiper-button-next {
    right: 20px;
    width: 60px;
    height: auto;
}

.yishu .yishu_bt {
    padding: 2vw 2vw 0 2vw;
    width: 100%;
}
.yishu_img1{
    margin: 4vw auto;
    width: 95%;
}
.yishu_pics{
    margin: 0 auto;
    height: auto;
    min-height: 86vw;
    overflow: hidden;
    position: relative;
}

.page4 .slide-box {
    width: 100%;
    height: 100%;
    height: 50vw;
    position: absolute;
    left: 50%;
    margin-left: -50vw;
    z-index: 111;
}
.page4 .slide-item .bd li {
    width: 100%;
    height: 100%;
    list-style: none;
}
.slide-item .bd li img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
 .item {
    width: 100%;
    height: 28vw;
    padding: 0.533vw 0.2vw 0.133vw 0.267vw;
    box-sizing: border-box;
    position: relative;
    display: inline-block;
}
 
.next {
    margin-left: 30vw;
}
.left, .right {
    position: absolute;
    width: 5.5vw;
    left: 50%;
    top: 37vw;

}
.left {
    left: -9vw;
    rotate: 180deg;
}
.right {
    margin-left: 36.5vw;
}
.yishu_item{
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    width: 96vw;
}
.slide_item1,
.slide_item2,
.slide_item3 {
    position: relative;
}
 
.image-title {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 4px 8px;
    font-size: 3.5vw;
    border-radius: 4px;
    z-index: 10;
    max-width: 90%;
    text-align: right;
    pointer-events: none;
}
 
.slide_item2 .image-title {
    font-size: 12px;
    bottom: 4px;
    right: 4px;
}
 
.slide_item3 .image-title {
    font-size: 3vw;
    bottom: 10px;
    right: 12px;
}
.slide_item1{
    width: 100%;
    height: 43vw;
    padding: 0.3vw;
    box-sizing: border-box;
    position: relative;
    display: inline-block;
}
.slide_item2{
    width: 100%;
    height: 33vw;
    padding: 0.5vw;
    box-sizing: border-box;
    position: relative;
    display: inline-block;
}
.yishu_verticalItem{
    /* width: 50%; */
}
.slide_item3{
    width: 100%;
    height: 83vw;
    padding: 0.3vw;
    box-sizing: border-box;
    position: relative;
    display: inline-block;
}

.yishu_wall{
    /* display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%; */
}
/* .yishu_part{
    height: 50vw;
    width: 72%;
}
.yishu_part2{
    width: 29%;
} */
.yishu_part{
    /* height: 380.25px; */
}
 .item {
    width: 100%;
    height: 38vw;
    margin: 0.8vw;
    box-sizing: border-box;
    position: relative;
    display: inline-block;
}
/* .yishu_item img{
    width: 100%;
    height: 100%;
    object-fit: cover;
} */
/* .yishu_item2 img{
    width: 100%;
    height: 420px;
    object-fit: cover;
} */
 .keji{
    height: 135vw;
 }
.keji .keji_bt {
    padding: 2vw 2vw 0 2vw;
    width: 100%;
}
.keji_img1{
    margin: 4vw auto;
    width: 100%;
}
.keji_pics{
    width: 1092px;
    height: 35vh;
    margin: 4vw auto;
}
.keji_pics1{
    width: 100%;
    height: 35vh;
    object-fit: cover;
}
.fullscreen-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    display: none;
}
 
.fullscreen-close {
    position: absolute;
    top: 44px;
    right: 38px;
    color: white;
    font-size: 10vw;
    z-index: 10;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
}
 
.fullscreen-swiper-container {
    width: 100%;
    height: 100%;
}
 
.fullscreen-swiper-container .swiper-slide {
    display: flex;
    align-items: center;
    justify-content: center;
}
 
.fullscreen-swiper-container img {
    max-width: 100%;
    max-height: 80%;
    object-fit: contain;
}
.image-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    overflow: auto;
}
 
.modal-content {
    position: relative;
    margin: auto;
    width: 100%;
    max-width: 1200px;
    top: 50%;
    transform: translateY(-50%);
}
 
.modal-image {
    width: 100%;
    height: auto;
    display: block;
}
 
.close-btn {
    position: absolute;
    top: 44px;
    right: 38px;
    color: white;
    font-size: 10vw;
    z-index: 10;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
}
 
.close-btn:hover {
    color: #bbb;
}