* {
 	padding: 0;
 	margin: 0;
 }
 ul {
	 list-style: none;
 }
 img{
	 display: block;
 }
 a{
    text-decoration: none;
 }
  body{ 
	 background: url(../images/bg.jpg?v=0.1) no-repeat center top #031048;
	 background-size: 100%;
 }
 .header{
	 height: 7.04rem;
	
 }
 .box-top {
	display: flex;
	justify-content: space-between; /* 左右两端对齐 */
    align-items: center; /* 垂直居中对齐 */
    width: 100%; /* 确保父容器占满宽度 */
	margin-bottom:0.3rem;
 }
 .box-top .tit{
	padding-left: 0.35rem;
    font-weight: bold;
    font-size: 0.48rem;
    color: #fff;
 }
 .box-top .tit-en{ 
	padding-right: 0.35rem; 
    font-weight: 100;
    font-size: 0.32rem;
    color: #fff;
 }
 .header .logo{
	 margin: .5rem 0;
	 width:1.57rem;
	 height:.59rem;
 }
 
 .swiper{
	margin: 0 0.25rem;
 }
 .mySwiper {
      position: relative;
      padding-bottom: 0.6rem; 
    }
.swiper-pagination {
position: absolute;
bottom: 0 !important;
left: 0;
width: 100%;
text-align: center;
}
.big-contain{
	padding: 0 0.25rem;
}

.big-contain .txt{
	font-size: 0.24rem;
    color: #fff;
    line-height: 0.5rem;
    text-align: center;
}
 .swiper-slide {
 	text-align: center;
 	font-size: 18px;
 	background: #fff;
 	display: flex;
 	justify-content: center;
 	align-items: center;
 }

 .swiper-slide img {
 	display: block;
 	width: 100%;
 	height: 100%;
 	object-fit: cover;
 }

 .swiper-pagination-bullet {
 	opacity: .3;
 	background: #fff;
 }

 .swiper-pagination-bullet-active {
 	opacity: 1;
 	background: #fff;
 }
 .menu{
	 margin-bottom: .2rem;
	 overflow: hidden;
 }
 .menu ul li{
	 padding: 16px 0;
	 width:25%;
	 float: left;
	 text-align: center;
 }
 .menu ul li.select{
 	 background-color:#6600cc;
 }
 .menu ul li .txt{
	 text-align: center;
	 font-size:.28rem;
	 color:#fff;
 }
  
 .content .box-center{
 	background: url(../images/border_bg.png) repeat-y;
 	background-size: 100%;
 }
 .item .img-container{
 	position: relative;
    width: 100%;
    height: 2.3rem; /* 固定高度值，可根据需要调整 */
    overflow: hidden; /* 隐藏超出部分 */ 
 }
 .item .img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover; /* 保持图片比例并覆盖容器 */
    transition: transform 0.3s ease;
}
 .content .box-center .box{
 	padding: 0 .3rem;
 	overflow: hidden;
 }
 .content .box-center .button-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 0.5rem;
    margin: 0.1rem 0;
}
 .content .box-center .more{
    color: #fff;
    padding: 0.1rem 0.2rem; 
    line-height: .24rem;
    text-align: center;
    font-size: .24rem;
    border-radius: 0.08rem;
    border: #fff solid 1px;
	 display: inline-block; 
 }

 .content .box-center .big-img{
 	position: relative;
 	margin-bottom: .2rem;
 }
 .content .box-center .big-img .txt{
 	position: absolute;
 	bottom:0;
 	left:0;
 	width:100%;
 	height: .6rem;
 	line-height: .6rem;
 	background: #0c96e7;
 	text-align: center;
 	overflow: hidden;
 	white-space: nowrap;
 	text-overflow: ellipsis;
 	font-size:.24rem;
 	color:#fff;
 }
 .content .box-center .small-img{
 	overflow: hidden;
 }
 .content .box-center .small-img .item {
 	display: inline-block;
    position: relative;
    width: 3.36rem;
    height: 2.9rem;
    overflow: hidden;
    /* margin-bottom: .2rem; */
 }
 .content .box-center .small-img .item:nth-child(odd){
 	float: left;
 }
 .content .box-center .small-img .item:nth-child(even){
 	float: right;
 }
 .content .box-center .small-img .item .txt{
 	    position: absolute;
    bottom: 0px;
    left: 0;
    width: 100%;
    /* padding: 0 .1rem; */
    height: .6rem;
    line-height: .58rem;
    /* background: #0c96e7; */
    text-align: center;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    font-size: .24rem;
    color: #fff;
 }
 .content .box-center .changshang .item{
 	display: inline-block;
 	vertical-align:top;
 	width:3.1rem;
 	height: 3.2rem;
 	margin-bottom: .2rem;
 	position: relative;
 }
 .content .box-center .changshang .item .txt{
 	padding: .2rem 0;
 	width:100%;
 	height: .6rem;
 	line-height: .4rem;
 	text-align: left;
 	overflow : hidden;
 	text-overflow: ellipsis;
 	display: -webkit-box;
 	-webkit-line-clamp: 2;
 	-webkit-box-orient: vertical;
 	font-size:.24rem;
 	color:#fff;
 }
 .content .changshang  a .icon{
 	position: absolute;
 	top:.9rem;
 	left:50%;
 	display: inline-block;
 	width:.44rem;
 	height:.56rem;
 	margin-left: -22px;
 }
  .content .hezuo{
	  overflow: hidden;
  }
 .content .hezuo .item{
    width: calc(50% - 0.1rem); /* 减去间距的一半 */
            margin-right: 0.2rem; /* 右侧间距 */
            margin-bottom: 0.2rem; /* 底部间距 */
            float: left;     
 }
 .content .hezuo ul{
 	list-style: none; 
 }
 .hezuo ul li:nth-child(2n) {
            margin-right: 0 !important; 
 }
   
 .footer1{
	height: 2rem;
 }
 .footer1 p{ 
	text-align: center;
    font-size: 0.28rem;
    color: #fff;
 }

  .footer1 img{
	    width: 1.7rem;
    margin: 1.2rem 2.9rem 0.2rem;
 }


 /* 核心样式 */
.back-to-top {
    position: fixed;
    right: 0.1rem;
    bottom: 1.2rem; 
    opacity: 0;
    transition: opacity 0.3s, transform 0.3s;
    z-index: 1000;
}

.back-to-top img {
    width: 1rem;
    height: 1rem;
    object-fit: cover;
    border-radius: 0.2rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* 显示状态 */
.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeOut {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(20px); }
}