@charset "utf-8";

.mobile-box{
    display: none;
}
/* 独立手机抽屉：默认不占布局、不显示（仅窄屏由 .is-open 打开） */
.mobile-nav-overlay {
    display: none !important;
}

/* 仅移动端：默认先隐藏汉堡按钮，由下方媒体查询开启 */
.site-menu-toggle {
    display: none;
}

@media screen and (max-width: 1024px) {
    .pc-box{
        display: none;
    }
    .mobile-box{
        display: flex;
    }
    /* ========== 顶栏：仅 logo 图 + 右上角菜单（搜索隐藏） ========== */
    .site-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        width: 0.44rem;
        height: 0.44rem;
        margin: 0;
        padding: 0;
        border: 0;
        background: transparent;
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
        line-height: 0;
    }

    .site-menu-toggle img {
        display: block;
        width: 0.32rem;
        height: auto;
        max-height: 0.36rem;
        object-fit: contain;
    }

    .hero-top {
        padding: 0.18rem 0;
    }

    .hero-top-inner {
        flex-wrap: nowrap;
        align-items: center;
        gap: 0.12rem;
    }

    .hero-top-right {
        margin-left: auto;
        display: flex;
        align-items: center;
        gap: 0;
    }

    .brand {
        gap: 0;
        min-width: 0;
        flex: 1;
    }

    .brand-logo {
        display: block;
        max-width: 100%;
    }

    .brand-logo img {
        height: auto;
        max-height: 0.38rem;
        width: auto;
        max-width: 100%;
        object-fit: contain;
        object-position: left center;
    }

    .search-form {
        display: none !important;
    }

    /* 顶栏压在抽屉之上，保证汉堡可再次点击关闭 */
    .site-hero {
        position: relative;
        z-index: 10002;
    }

    body.nav-open {
        overflow: hidden;
    }

    /* PC 主导航在窄屏彻底隐藏，避免与手机抽屉混用 */
    .main-nav {
        display: none !important;
    }

    /* ========== 手机端独立抽屉：div + a + .is-expanded ========== */
    .mobile-nav-overlay {
        display: none !important;
        position: fixed;
        left: 0;
        right: 0;
        top: 0.8rem;
        bottom: 0;
        z-index: 10000;
        box-sizing: border-box;
    }

    .mobile-nav-overlay.is-open {
        display: block !important;
    }

    .mobile-nav-backdrop {
        position: absolute;
        left: 0;
        right: 0;
        top: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.45);
    }

    .mobile-nav-panel {
        position: absolute;
        left: 0;
        right: 0;
        top: 0;
        bottom: 0;
        overflow-x: hidden;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        background: #305e69;
        box-shadow: 0 0.08rem 0.24rem rgba(0, 0, 0, 0.2);
    }

    .mobile-nav-link {
        display: flex;
        align-items: center;
        box-sizing: border-box;
        width: 100%;
        min-height: 0.48rem;
        padding: 0.16rem 0.44rem 0.16rem 0.2rem;
        font-size: 0.18rem;
        font-weight: 600;
        color: #fff;
        text-decoration: none;
        background: rgba(255, 255, 255, 0.07);
        border-top: 0.01rem solid rgba(255, 255, 255, 0.12);
    }

    .mobile-nav-link:active {
        background: rgba(255, 255, 255, 0.14);
    }

    .mobile-nav-group {
        margin: 0;
        padding: 0;
        border-top: 0.01rem solid rgba(255, 255, 255, 0.12);
        background: rgba(255, 255, 255, 0.07);
    }

    .mobile-nav-group:not(.is-expanded) .mobile-nav-sublinks {
        display: none !important;
    }

    .mobile-nav-group.is-expanded .mobile-nav-sublinks {
        display: block !important;
    }

    .mobile-nav-level1 {
        position: relative;
        display: flex;
        align-items: center;
        box-sizing: border-box;
        width: 100%;
        min-height: 0.48rem;
        padding: 0.14rem 0.42rem 0.14rem 0.2rem;
        font-size: 0.18rem;
        font-weight: 600;
        color: #fff;
        text-decoration: none;
        background: transparent;
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
    }

    .mobile-nav-level1:active {
        background: rgba(255, 255, 255, 0.08);
    }

    .mobile-nav-group.is-expanded .mobile-nav-level1 {
        background: rgba(255, 255, 255, 0.12);
    }

    /* 右侧展开箭头（实体三角，易辨识） */
    .mobile-nav-level1::after {
        content: "";
        position: absolute;
        right: 0.16rem;
        top: 50%;
        margin-top: -0.06rem;
        width: 0;
        height: 0;
        border-left: 0.07rem solid transparent;
        border-right: 0.07rem solid transparent;
        border-top: 0.1rem solid rgba(255, 255, 255, 0.95);
        transition: transform 0.2s ease;
        pointer-events: none;
    }

    .mobile-nav-group.is-expanded .mobile-nav-level1::after {
        transform: rotate(180deg);
        margin-top: -0.04rem;
    }

    .mobile-nav-sublinks {
        background: rgba(0, 0, 0, 0.22);
        padding: 0 0 0.06rem;
    }

    .mobile-nav-sublinks a {
        display: block;
        padding: 0.12rem 0.2rem 0.12rem 0.32rem;
        font-size: 0.16rem;
        font-weight: 400;
        color: #fff;
        text-decoration: none;
        border-top: 0.01rem solid rgba(0, 0, 0, 0.15);
    }

    .mobile-nav-sublinks a:active {
        background: rgba(255, 255, 255, 0.1);
    }

    /* ========== 首屏轮播高度 ========== */
    .hero-banner-swiper,
    .hero-banner-swiper .swiper-slide {
        height: 2.2rem;
    }

    .hero-banner-nav {
        width: 0.36rem;
        height: 0.36rem;
    }

    .hero-banner-swiper .swiper-button-prev {
        left: 0.12rem;
    }

    .hero-banner-swiper .swiper-button-next {
        right: 0.12rem;
    }

    /* ========== 区块间距与装饰（缩小或隐藏） ========== */
    .section-news,
    .section-dual {
        padding-top: 0.32rem;
        padding-bottom: 0.4rem;
    }

    .section-news::before{
        display: none;
    }
    .section-news::after{
        bottom: 0;
        top: unset;
    }
    .section-dual {
        background: url(../images/bannerbg.png) left calc(100% + 0.5rem) no-repeat;
        background-size: contain;
        padding-bottom: 1rem;
    }

    .section-head {
        margin-bottom: 0.2rem;
    }

    .section-title {
        font-size: 0.22rem;
    }

    .section-title-deco {
        height: 0.16rem;
    }

    .section-more {
        font-size: 0.16rem;
        height: 0.5rem;
        width: 0.7rem;
    }

    /* ========== 学院新闻：竖排，轮播全宽 ========== */
    .section-news .news-grid {
        flex-direction: column;
        gap: 0.24rem;
        align-items: stretch;
    }

    .section-news .news-slider-wrap {
        margin-top: 0;
        width: 100%;
        padding-bottom: 0.14rem;
        margin-bottom: 0.06rem;
        order: 1;
    }

    .section-news .news-slider-stage {
        width: 100%;
        height: 3.15rem;
        overflow: visible;
    }

    /* 保留左下衬底绿块（按比例缩小，与桌面同款错位露出） */
    .section-news .news-slider-deco {
        display: block;
        left: -0.1rem;
        bottom: -0.12rem;
        width: 2.75rem;
        height: 1.98rem;
    }

    .section-news .slide-caption {
        min-height: 0.4rem;
        padding: 0.08rem 1.38rem 0.08rem 0.1rem;
    }

    .section-news .slide-caption-text {
        font-size: 0.17rem;
    }

    .section-news .news-swiper-ctrls {
        height: 0.34rem;
        right: 0.05rem;
        gap: 0.03rem;
    }

    .section-news .news-swiper .news-nav-btn {
        width: 0.2rem;
        height: 0.2rem;
    }

    .section-news .news-nav-btn::after {
        font-size: 0.11rem !important;
    }

    .section-news .news-pagination {
        padding: 0 0.02rem;
    }

    .section-news .news-pagination .swiper-pagination-bullet {
        width: 0.11rem !important;
        height: 0.11rem !important;
        margin: 0 0.03rem !important;
    }

    .section-news .news-pagination .swiper-pagination-bullet-active {
        width: 0.11rem !important;
        height: 0.11rem !important;
        box-shadow: 0 0 0.03rem rgba(255, 255, 255, 0.55);
    }

    .section-news .news-list-col {
        order: 2;
    }

    .section-news .news-list::before {
        left: 0.62rem;
    }

    .section-news .news-list-col .section-head {
        margin-bottom: 0.16rem;
    }

    .section-news .news-list .news-item:nth-child(n + 6) {
        display: none;
    }

    .section-news .news-date {
        flex: 0 0 0.68rem;
        width: 0.68rem;
        font-size: 0.15rem;
        padding-right: 0.08rem;
    }

    .section-news .news-rail {
        flex: 0 0 0.26rem;
        margin-right: 0.08rem;
        min-height: 0.3rem;
    }

    .section-news .news-title-text {
        font-size: 0.18rem;

    }

    .section-news .news-list a {
        padding: 0.1rem 0;
    }
    .section-news .news-list .news-item:last-child a{
        padding: 0.1rem 0;
    }

    /* ========== 学术动态 + 宣传：竖排 ========== */
    .section-news .w15,.dual-grid {
        flex-direction: column;
        gap: 0.36rem;
        min-width: 0;
        max-width: 96%;
        padding: 0 0.16rem;
    }
.trends-col{width:100%;}
    .trends-col .block-head,
    .promo-col .block-head {
        margin-bottom: 0.16rem;
    }

    .trends-list .trends-item {
        padding-left: 0.24rem;
        padding-bottom: 0.2rem;
        margin-bottom: 0;
    }
    .trends-list .trends-item:last-child{
        padding-bottom: 0.2rem;
    }
    .trends-list .trends-item::before {
        width: 0.16rem;
        height: 0.16rem;
        top: 0.16rem;
    }

    .trends-list .trends-item:hover::before,
    .trends-list .trends-item:focus-within::before {
        width: 0.05rem;
        height: 0.52rem;
        top: 0;
    }

    .trends-title {
        font-size: 0.18rem;
    }

    .trends-excerpt {
        font-size: 0.15rem;
    }

    /* 宣传视频：不用 swiper 的 margin 留空（易与 Swiper 算的 100% 宽度叠加后撑出屏） */
    .promo-col {
        min-width: 0;
        max-width: 100%;
    }

    .promo-player {
        padding: 0.12rem 0.46rem;
        position: relative;
        width: 100%;
        max-width: 100%;
        min-width: 0;
        box-sizing: border-box;
    }

    .promo-swiper {
        margin: 0;
        width: 100%;
        max-width: 100%;
        min-width: 0;
        height: 2.05rem;
        box-sizing: border-box;
    }

    .promo-swiper .swiper-wrapper {
        height: 100%;
    }

    .promo-swiper .swiper-slide {
        height: 100%;
        min-width: 0;
        max-width: 100%;
        box-sizing: border-box;
    }

    .video-frame {
        width: 100%;
        max-width: 100%;
        min-width: 0;
        height: 100%;
        overflow: hidden;
    }

    .promo-video {
        position: absolute;
        inset: 0;
        width: 100%;
        max-width: 100%;
        min-width: 0;
        height: 100%;
        object-fit: contain;
    }

    .promo-nav-btn {
        width: 0.38rem;
        height: 0.38rem;
    }

    .promo-player .swiper-button-prev {
        left: 0;
    }

    .promo-player .swiper-button-next {
        right: 0;
    }

    /* ========== 页脚 ========== */
    .footer-links {
        padding: 0.14rem 0;
        display: none;
    }

    .footer-links-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.12rem;
    }

    .friendly-left {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.1rem;
    }

    .friendly-list {
        font-size: 0.12rem;
    }

    .footer-bottom {
        padding: 0;
    }

    .footer-bottom-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        max-width: 100%;
        width: 100%;
    }

    .footer-meta {
        margin-left: auto;
        text-align: center;
        font-size: 0.13rem;
        line-height: 1.65;
        margin-right: auto;
        display: flex;
        justify-content: center;
    }
    .footer-brand{
        padding: 0.25rem 0 ;
        display: flex;
        justify-content: center;
        background: #305e69;
        width: 100%;
    }
    .footer-mark {
        height: auto;
        max-height: 0.48rem;
        max-width: 100%;

    }
    .footer-meta{
        background: #194d59;
        padding: 0.15rem 0;
        width: 100%;
        max-width: 100%;
    }




    /* ========== 新闻网列表页 .n_container ========== */
    .n_container > .w15{
        padding: 0 0.16rem;
        width: 100%;
        max-width: 100%;
    }

    .n_left {
        flex: none;
        width: 100%;
        display: none;
    }

    .n_left .con h1 {
        margin-top: -0.16rem;
        font-size: 0.2rem;
        padding: 0.18rem 0.14rem;
    }

    .n_right {
        padding: 0 0 0.32rem;
    }

    .n_right .mianbao {
        font-size: 0.12rem;
        padding: 0.1rem 0 0.12rem;
        margin-bottom: 0.18rem;
        display: none;
    }

    .n_titu{
        margin-top: 0.3rem;
    }
    .n_titu ul{
        padding: 0;
    }
    .n_titu a.clearfix {
        flex-direction: row;
        align-items: center;
        gap: 0.1rem;
        padding: 0.12rem 0.06rem;
    }

    .n_titu .text {
        flex-direction: row;
        align-items: center;
    }

    .n_titu h5.line1 {
        font-size: 0.18rem;
        white-space: nowrap;
        display: block;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .n_titu .text > i{
        font-size: 0.15rem;
    }
    .show01 h5{
        height: auto;
    }
    .show01 .show01-ul {
        justify-content: center;
        gap: 0.1rem 0.12rem;
        padding-bottom: 0.18rem;
    }

    .show01 .show01-ul li div {
        font-size: 0.18rem;
        padding: 0.07rem 0.12rem;
    }

    .show01 .show01-ul li div img {
        width: 0.18rem;
        height: 0.18rem;
    }
    .show02 p{
        font-size: 0.18rem !important;
    }

    #nav_slide {
        display: block;
        background: #194d59;
        line-height: 50px;
        position: relative;
        z-index: 2
    }

    #nav_slide #bnt_back {
        position: absolute;
        left: 0.16rem;
        top: -2px
    }

    #nav_slide #bnt_back img {
        height: 20px;
        vertical-align: middle
    }

    #nav_slide .n_title {
        height: 50px
    }

    #nav_slide h1 {
        font-size: 16px;
        color: #fff;
        text-align: center
    }

    #bnt_sub_nav {
        position: absolute;
        right: 0.16rem;
        top: 14.5px;
        cursor: pointer
    }

    #bnt_sub_nav img {
        display: block;
        height: 20px;
        transition: transform 0.3s ease;
    }

    #bnt_sub_nav.on img {
        -webkit-transform: rotate(-180deg);
        transform: rotate(-180deg)
    }

    #sub_nav_content {
        background: #f2f2f2;
        z-index: 9;
        width: 100%;
        box-shadow: 0 2px 8px 0 rgba(0, 0, 0, 0.2);
        max-height: 0;
        opacity: 0;
        overflow: hidden;
        visibility: hidden;
        transition: max-height 0.38s ease, opacity 0.28s ease, visibility 0.28s ease;
    }

    #sub_nav_content.is-open {
        max-height: min(85vh, 5.6rem);
        opacity: 1;
        overflow-x: hidden;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        visibility: visible;
    }

    #sub_nav_content ul {
        background: #FFFFFF
    }

    #sub_nav_content ul li {
        background: none;
        box-shadow: none;
        border-bottom: 1px solid #dedede;
        padding: 0 15px
    }

    #sub_nav_content ul li a {
        display: block;
        font-size: 16px;
        padding: 0;
        color: #333;
        width: 100%;
    }

    #sub_nav_content ul li.on>a {
        color: #194d59;
    }
    .list_box_tc{
        margin-top: 0.4rem;
    }
    .piclist-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.14rem 0.12rem;
    }

    .piclist-card-caption {
        font-size: 0.16rem;
        padding: 0.08rem 0.1rem;
    }
}