.container{width:100%;background:linear-gradient(90deg,#e6f4ff,#f0f9ff);/* padding:10px 15px; */border-radius:8px;}

/* 顶部Tab导航栏 */
.tab .menu{display:flex;width:100%;background:#f7fbff;border-radius:6px;overflow:hidden;border:1px solid #d8ecff;}
.tab .menu li{flex:1;text-align:center;padding:16px 8px;cursor:pointer;border-right:1px solid #d8ecff;transition:all 0.3s ease;}
.tab .menu li:last-child{border-right:none;}
.tab .menu li a{color:#334455;font-size: 15px;/* letter-spacing: 0.3px; */white-space:nowrap;display:block;width:100%;height:100%;font-weight: bold;}

/* Tab激活样式（原xuexi类） */
.tab .menu li.xuexi{background:linear-gradient(180deg,#cce5ff,#e6f4ff);position:relative;}
.tab .menu li.xuexi::after{content:"";position:absolute;bottom:0;left:0;width:100%;height:4px;background:#1677ff;}
.tab .menu li.xuexi a{color:#0958d9;font-weight:500;}

/* Tab悬浮效果 */
.tab .menu li:hover{background:#e6f4ff;}
.tab .menu li:hover a{color:#1677ff;}

/* 新闻内容容器 */
.tab_b{margin-top:16px;padding:12px 16px;border-radius:6px;background:rgba(255,255,255,0.6);min-height:145px;animation:fadeIn 0.4s ease;}
/* 切换淡入动画 */
@keyframes fadeIn{
    from{opacity:0;transform:translateY(6px);}
    to{opacity:1;transform:translateY(0);}
}

/* 新闻标题列表 */
.aixuexi li{line-height:2.2;padding:6px 0;position:relative;padding-left:14px;transition:all 0.2s ease;float: left;width: 48%;}
.aixuexi li::before{content: "·";
    color: #1677ff;
    position: absolute;
    left: 6px;
    top: 6px;
    font-weight: bold;}
.aixuexi li a{color:#222;font-size:17px;}
.aixuexi li:hover{padding-left:18px;}
.aixuexi li:hover a{color:#1677ff;}
.area-list-box{
    width: 100%;}
/* 单条区域行 */
.area-item{
    display: flex;
    border-bottom: 1px solid #ddd;}
.area-item:last-child{
    border-bottom: none;}

/* 左侧固定文字栏 */
.area-left{
    width: 166px;
    flex-shrink: 0;
    padding: 26px 22px;
    background: #0094de;
    border-right: 1px solid #ddd;}
.area-left h4{
   font-size: 19px;
    color: #ffffff;
    /* margin-bottom: 10px; */
    font-weight: normal;
    position: relative;
    top: 40%;}
.area-left p{
    font-size: 20px;
    color: #0178b4;}

/* 右侧四图容器 */
.area-right{
    flex: 1;
    padding: 12px 24px;}
/* 四张图片网格布局，均分4列 */
.img-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 84px;}
.img-item{
    text-align: center;}
.img-item img{
   
    height: 140px;
    border: 2px solid #0178b4;
    border-radius: 4px;
    margin-bottom: 8px;}
.img-item span{
    font-size: 16px;
    color: #333;}

/* 平板适配：4图变2列 */
@media screen and (max-width:1200px){
    .img-row{
        grid-template-columns: repeat(2, 1fr);}
}
/* 移动端：左右栏垂直堆叠，4图单列 */
@media screen and (max-width:992px){
    .area-item{
        flex-direction: column;}
    .area-left{
        width: 100%;
        border-right: none;
        border-bottom: 1px solid #ddd;
        padding: 18px 16px;}
    .area-left h4{
        font-size: 22px;}
    .area-left p{
        font-size: 17px;}
    .img-row{
        grid-template-columns: repeat(1, 1fr);
        gap: 16px;}
    .img-item img{
                height: 180px;
        overflow: hidden;
        display: block;
        width: 100%;}
    .xhhyt {
    width: 60% !important;
    float: left;}
}
.xshyt{width:23%;float:left;    padding: 20px 0;}
@media screen and (max-width:992px){
 
    .xshyt {
    width: 63%;
    float: left;
    padding: 20px 0;}
/* 123 */