/* ============================================================
   内页响应式适配：leaders.html / articles.html / article-detail.html
   设计基线宽度：1920px
   作用域：.about-page / .news-page / .notice-detail-page
   不影响 index.html 与 teachers.html
   ============================================================ */

/* -------------------- 视口 > 1920px：按比例放大 -------------------- */
@media (min-width: 1921px) {

    /* ===== 共享布局与导航 ===== */
    .about-page .nav-container,
    .news-page .nav-container,
    .notice-detail-page .nav-container,
    .about-page .breadcrumb,
    .news-page .breadcrumb,
    .notice-detail-page .breadcrumb,
    .about-page .inner-main,
    .news-page .inner-main,
    .notice-detail-page .inner-main,
    .about-page .footer-row-top-inner,
    .news-page .footer-row-top-inner,
    .notice-detail-page .footer-row-top-inner {
        max-width: 82.656vw;
    }

    .about-page .top-bar,
    .news-page .top-bar,
    .notice-detail-page .top-bar {
        height: 5.208vw;
    }

    .about-page .top-bar .nav-container,
    .news-page .top-bar .nav-container,
    .notice-detail-page .top-bar .nav-container {
        padding-left: 0;
        padding-right: 0;
    }

    .about-page .top-bar-logo img,
    .news-page .top-bar-logo img,
    .notice-detail-page .top-bar-logo img {
        height: 3.229vw;
    }

    .about-page .top-search,
    .news-page .top-search,
    .notice-detail-page .top-search {
        width: 12.188vw;
        height: 1.875vw;
    }

    .about-page .top-search input,
    .news-page .top-search input,
    .notice-detail-page .top-search input {
        height: 1.875vw;
        padding-right: 2.344vw;
        padding-left: 0.938vw;
        font-size: 0.729vw;
    }

    .about-page .top-search button,
    .news-page .top-search button,
    .notice-detail-page .top-search button {
        width: 0.99vw;
        height: 0.99vw;
        right: 0.833vw;
    }

    .about-page .lang-switch,
    .news-page .lang-switch,
    .notice-detail-page .lang-switch {
        font-size: 0.833vw;
    }

    .about-page .main-nav,
    .news-page .main-nav,
    .notice-detail-page .main-nav {
        height: 2.604vw;
    }

    .about-page .nav-menu li a,
    .news-page .nav-menu li a,
    .notice-detail-page .nav-menu li a {
        padding: 0 0.885vw;
        height: 2.604vw;
        line-height: 2.604vw;
        font-size: 0.833vw;
    }

    .about-page .nav-menu li.has-submenu .sub-menu,
    .news-page .nav-menu li.has-submenu .sub-menu,
    .notice-detail-page .nav-menu li.has-submenu .sub-menu {
        min-width: 10vw;
    }

    .about-page .nav-menu li.has-submenu .sub-menu li a,
    .news-page .nav-menu li.has-submenu .sub-menu li a,
    .notice-detail-page .nav-menu li.has-submenu .sub-menu li a {
        padding: 0 1.042vw;
        height: 2.292vw;
        line-height: 2.292vw;
        font-size: 0.833vw;
    }

    /* ===== 内页主体 ===== */
    .about-page .inner-main,
    .news-page .inner-main,
    .notice-detail-page .inner-main {
        gap: 3.906vw;
        padding-left: 0;
        padding-right: 0;
    }

    /* ===== 侧边栏 ===== */
    .about-page .sidebar,
    .news-page .sidebar,
    .notice-detail-page .sidebar {
        width: 17.708vw;
    }

    .about-page .sidebar-header,
    .news-page .sidebar-header,
    .notice-detail-page .sidebar-header {
        height: 5.208vw;
        font-size: 1.25vw;
    }

    .about-page .sidebar-menu,
    .news-page .sidebar-menu,
    .notice-detail-page .sidebar-menu {
        width: 16.667vw;
        padding: 1.042vw 0 1.563vw;
    }

    .about-page .sidebar-menu-item>a,
    .news-page .sidebar-menu-item>a,
    .notice-detail-page .sidebar-menu-item>a {
        padding: 0 1.042vw;
        font-size: 1.042vw;
        line-height: 3.333vw;
    }

    .about-page .sidebar-menu-item.active>a,
    .news-page .sidebar-menu-item.active>a,
    .notice-detail-page .sidebar-menu-item.active>a {
        width: calc(100% - 1.25vw);
        max-width: 15.417vw;
        height: 3.125vw;
    }

    .about-page .sidebar-submenu li a,
    .news-page .sidebar-submenu li a,
    .notice-detail-page .sidebar-submenu li a {
        padding-left: 2.083vw;
        padding-right: 2.083vw;
        height: 2.083vw;
        line-height: 2.083vw;
        font-size: 0.833vw;
    }

    .about-page .sidebar-arrow,
    .news-page .sidebar-arrow,
    .notice-detail-page .sidebar-arrow {
        right: 1.042vw;
        width: 0.99vw;
        height: 0.885vw;
    }

    /* ===== 页脚 ===== */
    .about-page .footer-row-top-inner,
    .news-page .footer-row-top-inner,
    .notice-detail-page .footer-row-top-inner {
        height: 5.938vw;
    }

    .about-page .footer-main,
    .news-page .footer-main,
    .notice-detail-page .footer-main {
        gap: 3.75vw;
    }

    .about-page .footer-logo img,
    .news-page .footer-logo img,
    .notice-detail-page .footer-logo img {
        width: 16.302vw;
        height: auto;
    }

    .about-page .footer-contact-info,
    .news-page .footer-contact-info,
    .notice-detail-page .footer-contact-info {
        gap: 3.49vw;
    }

    .about-page .footer-contact-item,
    .news-page .footer-contact-item,
    .notice-detail-page .footer-contact-item {
        font-size: 0.938vw;
    }

    .about-page .footer-contact-item img,
    .news-page .footer-contact-item img,
    .notice-detail-page .footer-contact-item img {
        width: 2.24vw;
        height: 2.24vw;
    }

    .about-page .footer-contact-item .label-en,
    .news-page .footer-contact-item .label-en,
    .notice-detail-page .footer-contact-item .label-en {
        font-size: 0.938vw;
    }

    .about-page .footer-address,
    .news-page .footer-address,
    .notice-detail-page .footer-address {
        font-size: 0.833vw;
    }

    .about-page .footer-row-bottom,
    .news-page .footer-row-bottom,
    .notice-detail-page .footer-row-bottom {
        height: 2.865vw;
        font-size: 0.833vw;
    }

    /* ===== leaders 页面特定 ===== */
    .about-page .leaders-list {
        gap: 3.021vw;
        margin-bottom: 5.469vw;
    }

    .about-page .leader-card {
        height: 11.563vw;
    }

    .about-page .leader-photo {
        width: 8.646vw;
        height: 11.563vw;
    }

    .about-page .leader-info {
        padding: 1.25vw 1.563vw;
    }

    .about-page .leader-info::after {
        width: 5.208vw;
        height: 5.208vw;
        right: 0.833vw;
        bottom: 1.198vw;
    }

    .about-page .leader-position-name {
        font-size: 0.938vw;
        margin-bottom: 0.729vw;
    }

    .about-page .leader-meta {
        font-size: 0.729vw;
        line-height: 2;
    }

    /* ===== articles 页面特定 ===== */
    .news-page .news-list {
        gap: 0.625vw;
        margin-bottom: 3.646vw;
    }

    .news-page .news-list-item {
        height: 4.375vw;
        padding: 0.938vw 1.25vw;
        gap: 0.729vw;
    }

    .news-page .item-arrow {
        width: 0.833vw;
        height: 0.833vw;
    }

    .news-page .item-title,
    .news-page .item-date {
        font-size: 0.833vw;
    }

    .news-page .pagination {
        gap: 0.885vw;
        margin-bottom: 3.646vw;
    }

    .news-page .page-btn,
    .news-page .page-num {
        height: 1.875vw;
        padding: 0 0.729vw;
        font-size: 0.729vw;
    }

    .news-page .page-num {
        width: 1.875vw;
        padding: 0;
    }

    /* ===== article-detail 页面特定 ===== */
    .notice-detail-page .detail-content {
        padding: 2.083vw 2.604vw 2.604vw;
        margin-bottom: 3.906vw;
    }

    .notice-detail-page .detail-title {
        font-size: 1.354vw;
        margin-bottom: 0.938vw;
    }

    .notice-detail-page .detail-meta {
        margin-bottom: 1.823vw;
    }

    .notice-detail-page .detail-time {
        font-size: 0.729vw;
    }

    .notice-detail-page .detail-body {
        font-size: 0.833vw;
        line-height: 1.8;
        margin-bottom: 2.083vw;
    }

    .notice-detail-page .detail-body p {
        margin-bottom: 0.729vw;
    }

    .notice-detail-page .detail-body img {
        margin-top: 1.563vw;
        margin-bottom: 1.563vw;
    }

    .notice-detail-page .detail-divider {
        margin-bottom: 2.083vw;
    }

    .notice-detail-page .detail-nav {
        gap: 0.729vw;
    }

    .notice-detail-page .nav-article {
        font-size: 0.833vw;
        gap: 0.417vw;
    }

    .notice-detail-page .nav-icon {
        width: 0.677vw;
        height: 0.677vw;
        margin-top: 0.26vw;
    }
}


/* -------------------- 1201px–1920px：clamp 平滑缩放 -------------------- */
@media (min-width: 1201px) and (max-width: 1920px) {

    /* ===== 共享布局与导航 ===== */
    .about-page .nav-container,
    .news-page .nav-container,
    .notice-detail-page .nav-container,
    .about-page .breadcrumb,
    .news-page .breadcrumb,
    .notice-detail-page .breadcrumb,
    .about-page .inner-main,
    .news-page .inner-main,
    .notice-detail-page .inner-main,
    .about-page .footer-row-top-inner,
    .news-page .footer-row-top-inner,
    .notice-detail-page .footer-row-top-inner {
        max-width: clamp(992px, 82.656vw, 1587px);
    }

    .about-page .top-bar,
    .news-page .top-bar,
    .notice-detail-page .top-bar {
        height: clamp(62px, 5.208vw, 100px);
    }

    .about-page .top-bar-logo img,
    .news-page .top-bar-logo img,
    .notice-detail-page .top-bar-logo img {
        height: clamp(44px, 3.229vw, 62px);
    }

    .about-page .top-search,
    .news-page .top-search,
    .notice-detail-page .top-search {
        width: clamp(170px, 12.188vw, 234px);
        height: clamp(30px, 1.875vw, 36px);
    }

    .about-page .top-search input,
    .news-page .top-search input,
    .notice-detail-page .top-search input {
        height: clamp(30px, 1.875vw, 36px);
        padding-right: clamp(32px, 2.344vw, 45px);
        padding-left: clamp(14px, 0.938vw, 18px);
        font-size: clamp(14px, 0.729vw, 14px);
    }

    .about-page .top-search button,
    .news-page .top-search button,
    .notice-detail-page .top-search button {
        width: clamp(14px, 0.99vw, 19px);
        height: clamp(14px, 0.99vw, 19px);
        right: clamp(12px, 0.833vw, 16px);
    }

    .about-page .lang-switch,
    .news-page .lang-switch,
    .notice-detail-page .lang-switch {
        font-size: clamp(16px, 0.833vw, 16px);
    }

    .about-page .main-nav,
    .news-page .main-nav,
    .notice-detail-page .main-nav {
        height: clamp(42px, 2.604vw, 50px);
    }

    .about-page .nav-menu li a,
    .news-page .nav-menu li a,
    .notice-detail-page .nav-menu li a {
        padding: 0 clamp(14px, 0.885vw, 17px);
        height: clamp(42px, 2.604vw, 50px);
        line-height: clamp(42px, 2.604vw, 50px);
        font-size: clamp(14px, 0.833vw, 16px);
    }

    .about-page .nav-menu li.has-submenu .sub-menu,
    .news-page .nav-menu li.has-submenu .sub-menu,
    .notice-detail-page .nav-menu li.has-submenu .sub-menu {
        min-width: clamp(140px, 10vw, 192px);
    }

    .about-page .nav-menu li.has-submenu .sub-menu li a,
    .news-page .nav-menu li.has-submenu .sub-menu li a,
    .notice-detail-page .nav-menu li.has-submenu .sub-menu li a {
        padding: 0 clamp(14px, 1.042vw, 20px);
        height: clamp(38px, 2.292vw, 44px);
        line-height: clamp(38px, 2.292vw, 44px);
        font-size: clamp(14px, 0.833vw, 16px);
    }

    /* ===== 内页主体 ===== */
    .about-page .inner-main,
    .news-page .inner-main,
    .notice-detail-page .inner-main {
        gap: clamp(30px, 3.906vw, 75px);
        padding-left: 0;
        padding-right: 0;
    }

    /* ===== 侧边栏 ===== */
    .about-page .sidebar,
    .news-page .sidebar,
    .notice-detail-page .sidebar {
        width: clamp(280px, 17.708vw, 340px);
    }

    .about-page .sidebar-header,
    .news-page .sidebar-header,
    .notice-detail-page .sidebar-header {
        height: clamp(68px, 5.208vw, 100px);
        font-size: clamp(17px, 1.25vw, 24px);
    }

    .about-page .sidebar-menu,
    .news-page .sidebar-menu,
    .notice-detail-page .sidebar-menu {
        width: clamp(260px, 16.667vw, 320px);
        padding: clamp(15px, 1.042vw, 20px) 0 clamp(20px, 1.563vw, 30px);
    }

    .about-page .sidebar-menu-item>a,
    .news-page .sidebar-menu-item>a,
    .notice-detail-page .sidebar-menu-item>a {
        padding: 0 clamp(16px, 1.042vw, 20px);
        font-size: clamp(17px, 1.042vw, 20px);
        line-height: clamp(46px, 3.333vw, 64px);
    }

    .about-page .sidebar-menu-item.active>a,
    .news-page .sidebar-menu-item.active>a,
    .notice-detail-page .sidebar-menu-item.active>a {
        max-width: clamp(240px, 15.417vw, 296px);
        height: clamp(48px, 3.125vw, 60px);
    }

    .about-page .sidebar-submenu li a,
    .news-page .sidebar-submenu li a,
    .notice-detail-page .sidebar-submenu li a {
        padding-left: clamp(14px, 2.083vw, 40px);
        padding-right: clamp(14px, 2.083vw, 40px);
        height: clamp(38px, 2.083vw, 40px);
        line-height: clamp(38px, 2.083vw, 40px);
        font-size: clamp(14px, 0.833vw, 16px);
    }

    .about-page .sidebar-arrow,
    .news-page .sidebar-arrow,
    .notice-detail-page .sidebar-arrow {
        right: clamp(12px, 1.042vw, 20px);
        width: clamp(14px, 0.99vw, 19px);
        height: clamp(14px, 0.885vw, 17px);
    }

    /* ===== 页脚 ===== */
    .about-page .footer-row-top-inner,
    .news-page .footer-row-top-inner,
    .notice-detail-page .footer-row-top-inner {
        height: clamp(71px, 5.938vw, 114px);
        padding-left: clamp(24px, 2.083vw, 40px);
        padding-right: clamp(24px, 2.083vw, 40px);
    }

    .about-page .footer-main,
    .news-page .footer-main,
    .notice-detail-page .footer-main {
        gap: clamp(30px, 3.75vw, 72px);
    }

    .about-page .footer-logo img,
    .news-page .footer-logo img,
    .notice-detail-page .footer-logo img {
        width: clamp(195px, 16.302vw, 313px);
        height: auto;
    }

    .about-page .footer-contact-info,
    .news-page .footer-contact-info,
    .notice-detail-page .footer-contact-info {
        gap: clamp(42px, 3.49vw, 67px);
    }

    .about-page .footer-contact-item,
    .news-page .footer-contact-item,
    .notice-detail-page .footer-contact-item {
        font-size: clamp(16px, 0.938vw, 18px);
    }

    .about-page .footer-contact-item img,
    .news-page .footer-contact-item img,
    .notice-detail-page .footer-contact-item img {
        width: clamp(27px, 2.24vw, 43px);
        height: clamp(27px, 2.24vw, 43px);
    }

    .about-page .footer-contact-item .label-en,
    .news-page .footer-contact-item .label-en,
    .notice-detail-page .footer-contact-item .label-en {
        font-size: clamp(16px, 0.938vw, 18px);
    }

    .about-page .footer-address,
    .news-page .footer-address,
    .notice-detail-page .footer-address {
        font-size: clamp(14px, 0.833vw, 16px);
    }

    .about-page .footer-row-bottom,
    .news-page .footer-row-bottom,
    .notice-detail-page .footer-row-bottom {
        height: clamp(34px, 2.865vw, 55px);
        font-size: clamp(14px, 0.833vw, 16px);
    }

    /* ===== leaders 页面特定 ===== */
    .about-page .leaders-list {
        gap: clamp(30px, 3.021vw, 58px);
        margin-bottom: clamp(60px, 5.469vw, 105px);
    }

    .about-page .leader-card {
        height: clamp(180px, 11.563vw, 222px);
    }

    .about-page .leader-photo {
        width: clamp(135px, 8.646vw, 166px);
        height: clamp(180px, 11.563vw, 222px);
    }

    .about-page .leader-info {
        padding: clamp(18px, 1.25vw, 24px) clamp(20px, 1.563vw, 30px);
    }

    .about-page .leader-info::after {
        width: clamp(70px, 5.208vw, 100px);
        height: clamp(70px, 5.208vw, 100px);
        right: clamp(10px, 0.833vw, 16px);
        bottom: clamp(14px, 1.198vw, 23px);
    }

    .about-page .leader-position-name {
        font-size: clamp(17px, 0.938vw, 18px);
        margin-bottom: clamp(10px, 0.729vw, 14px);
    }

    .about-page .leader-meta {
        font-size: clamp(13px, 0.729vw, 14px);
        line-height: 2;
    }

    /* ===== articles 页面特定 ===== */
    .news-page .news-list {
        gap: clamp(7px, 0.625vw, 12px);
        margin-bottom: clamp(48px, 3.646vw, 70px);
    }

    .news-page .news-list-item {
        height: clamp(68px, 4.375vw, 84px);
        padding: clamp(14px, 0.938vw, 18px) clamp(18px, 1.25vw, 24px);
        gap: clamp(10px, 0.729vw, 14px);
    }

    .news-page .item-arrow {
        width: clamp(12px, 0.833vw, 16px);
        height: clamp(12px, 0.833vw, 16px);
    }

    .news-page .item-title,
    .news-page .item-date {
        font-size: clamp(15px, 0.833vw, 16px);
    }

    .news-page .pagination {
        gap: clamp(10px, 0.885vw, 17px);
        margin-bottom: clamp(48px, 3.646vw, 70px);
    }

    .news-page .page-btn,
    .news-page .page-num {
        height: clamp(28px, 1.875vw, 36px);
        padding: 0 clamp(12px, 0.729vw, 14px);
        font-size: clamp(13px, 0.729vw, 14px);
    }

    .news-page .page-num {
        width: clamp(28px, 1.875vw, 36px);
        padding: 0;
    }

    /* ===== article-detail 页面特定 ===== */
    .notice-detail-page .detail-content {
        padding: clamp(35px, 2.083vw, 40px) clamp(40px, 2.604vw, 50px) clamp(45px, 2.604vw, 50px);
        margin-bottom: clamp(46px, 3.906vw, 75px);
    }

    .notice-detail-page .detail-title {
        font-size: clamp(24px, 1.354vw, 26px);
        margin-bottom: clamp(14px, 0.938vw, 18px);
    }

    .notice-detail-page .detail-meta {
        margin-bottom: clamp(22px, 1.823vw, 35px);
    }

    .notice-detail-page .detail-time {
        font-size: clamp(13px, 0.729vw, 14px);
    }

    .notice-detail-page .detail-body {
        font-size: clamp(15px, 0.833vw, 16px);
        line-height: 1.8;
        margin-bottom: clamp(30px, 2.083vw, 40px);
    }

    .notice-detail-page .detail-body p {
        margin-bottom: clamp(12px, 0.729vw, 14px);
    }

    .notice-detail-page .detail-body img {
        margin-top: clamp(18px, 1.563vw, 30px);
        margin-bottom: clamp(18px, 1.563vw, 30px);
    }

    .notice-detail-page .detail-divider {
        margin-bottom: clamp(30px, 2.083vw, 40px);
    }

    .notice-detail-page .detail-nav {
        gap: clamp(10px, 0.729vw, 14px);
    }

    .notice-detail-page .nav-article {
        font-size: clamp(14px, 0.833vw, 16px);
        gap: clamp(6px, 0.417vw, 8px);
    }

    .notice-detail-page .nav-icon {
        width: clamp(10px, 0.677vw, 13px);
        height: clamp(10px, 0.677vw, 13px);
        margin-top: clamp(3px, 0.26vw, 5px);
    }
}


/* -------------------- ≤1200px：紧凑桌面布局 -------------------- */
@media (max-width: 1200px) {

    .about-page .nav-container,
    .news-page .nav-container,
    .notice-detail-page .nav-container {
        padding: 0 24px;
    }

    .about-page .top-bar-logo img,
    .news-page .top-bar-logo img,
    .notice-detail-page .top-bar-logo img {
        height: 48px;
    }

    .about-page .top-search,
    .news-page .top-search,
    .notice-detail-page .top-search {
        width: 200px;
    }

    .about-page .inner-main,
    .news-page .inner-main,
    .notice-detail-page .inner-main {
        width: 100%;
        padding: 0 24px 60px;
        gap: 30px;
        box-sizing: border-box;
    }

    .about-page .sidebar,
    .news-page .sidebar,
    .notice-detail-page .sidebar {
        width: 280px;
    }

    .about-page .sidebar-header,
    .news-page .sidebar-header,
    .notice-detail-page .sidebar-header {
        height: 80px;
        font-size: 20px;
    }

    .about-page .sidebar-menu,
    .news-page .sidebar-menu,
    .notice-detail-page .sidebar-menu {
        width: calc(100% - 20px);
        padding: 15px 0 20px;
    }

    .about-page .sidebar-menu-item>a,
    .news-page .sidebar-menu-item>a,
    .notice-detail-page .sidebar-menu-item>a {
        font-size: 17px;
        line-height: 52px;
    }

    .about-page .sidebar-submenu li a,
    .news-page .sidebar-submenu li a,
    .notice-detail-page .sidebar-submenu li a {
        font-size: 14px;
        height: 38px;
        line-height: 38px;
    }

    /* leaders */
    .about-page .leaders-list {
        gap: 30px;
        margin-bottom: 60px;
    }

    .about-page .leader-card {
        height: auto;
        min-height: 180px;
    }

    .about-page .leader-photo {
        width: 140px;
        height: auto;
        min-height: 180px;
    }

    .about-page .leader-info {
        padding: 20px 24px;
    }

    .about-page .leader-info::after {
        width: 80px;
        height: 80px;
    }

    .about-page .leader-position-name {
        font-size: 17px;
    }

    .about-page .leader-meta {
        font-size: 13px;
        line-height: 1.85;
    }

    /* articles */
    .news-page .news-list {
        margin-bottom: 50px;
    }

    .news-page .news-list-item {
        height: auto;
        min-height: 72px;
    }

    .news-page .pagination {
        margin-bottom: 50px;
    }

    /* article-detail */
    .notice-detail-page .detail-content {
        padding: 35px 40px 45px;
    }

    .notice-detail-page .detail-title {
        font-size: 24px;
    }
}


/* -------------------- ≤992px：平板/窄屏，侧边栏与内容区上下堆叠 -------------------- */
@media (max-width: 992px) {

    .about-page .inner-main,
    .news-page .inner-main,
    .notice-detail-page .inner-main {
        flex-direction: column;
        align-items: stretch;
        gap: 24px;
        padding-bottom: 50px;
    }

    .about-page .sidebar,
    .news-page .sidebar,
    .notice-detail-page .sidebar {
        width: 100%;
    }

    .about-page .sidebar-header,
    .news-page .sidebar-header,
    .notice-detail-page .sidebar-header {
        height: 64px;
        font-size: 18px;
    }

    .about-page .sidebar-menu,
    .news-page .sidebar-menu,
    .notice-detail-page .sidebar-menu {
        display: flex;
        flex-wrap: wrap;
        width: 100%;
        padding: 0;
        border-left: none;
        border-right: none;
        border-bottom: 1px solid #eee;
    }

    .about-page .sidebar-menu-item,
    .news-page .sidebar-menu-item,
    .notice-detail-page .sidebar-menu-item {
        flex: 1 1 auto;
        min-width: 110px;
        border-bottom: 1px solid #f0f0f0;
    }

    .about-page .sidebar-menu-item>a,
    .news-page .sidebar-menu-item>a,
    .notice-detail-page .sidebar-menu-item>a {
        justify-content: center;
        padding: 0 16px;
        height: 48px;
        line-height: 48px;
        font-size: 15px;
        border-bottom: 2px solid transparent;
    }

    .about-page .sidebar-menu-item.active>a,
    .news-page .sidebar-menu-item.active>a,
    .notice-detail-page .sidebar-menu-item.active>a,
    .about-page .sidebar-menu-item>a:hover,
    .news-page .sidebar-menu-item>a:hover,
    .notice-detail-page .sidebar-menu-item>a:hover {
        width: auto;
        height: auto;
        margin: 0;
        background: transparent;
        color: #C13432;
        border-bottom-color: #C13432;
        border-radius: 0;
    }

    .about-page .sidebar-arrow,
    .news-page .sidebar-arrow,
    .notice-detail-page .sidebar-arrow {
        position: static;
        display: inline-block;
        width: 14px;
        height: 12px;
        margin-left: 6px;
        vertical-align: middle;
        transform: none;
    }

    .about-page .sidebar-menu-item.open .sidebar-arrow,
    .news-page .sidebar-menu-item.open .sidebar-arrow,
    .notice-detail-page .sidebar-menu-item.open .sidebar-arrow {
        transform: rotate(180deg);
    }

    .about-page .sidebar-submenu,
    .news-page .sidebar-submenu,
    .notice-detail-page .sidebar-submenu {
        width: 100%;
        background: #f8f9fa;
        border-top: 1px solid #eee;
    }

    .about-page .sidebar-submenu li a,
    .news-page .sidebar-submenu li a,
    .notice-detail-page .sidebar-submenu li a {
        padding: 0 10px;
        height: 40px;
        line-height: 40px;
        font-size: 14px;
        text-align: center;
        border-bottom: 1px solid #eee;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    /* leaders */
    .about-page .leaders-list {
        gap: 24px;
        margin-bottom: 40px;
    }

    .about-page .leader-card {
        height: auto;
    }

    .about-page .leader-photo {
        width: 130px;
        min-height: 170px;
    }

    .about-page .leader-info {
        padding: 18px 20px;
    }

    .about-page .leader-info::after {
        width: 70px;
        height: 70px;
    }

    .about-page .leader-position-name {
        font-size: 16px;
        margin-bottom: 10px;
    }

    .about-page .leader-meta {
        font-size: 13px;
        line-height: 1.75;
    }

    /* articles */
    .news-page .news-list {
        margin-bottom: 40px;
    }

    .news-page .news-list-item {
        padding: 14px 16px;
        gap: 10px;
    }

    .news-page .item-title {
        white-space: normal;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
    }

    .news-page .pagination {
        gap: 8px;
        flex-wrap: wrap;
        margin-bottom: 40px;
    }

    /* article-detail */
    .notice-detail-page .detail-content {
        padding: 30px 30px 40px;
    }

    .notice-detail-page .detail-title {
        font-size: 22px;
    }

    .notice-detail-page .detail-body {
        font-size: 15px;
    }
}


/* -------------------- ≤768px：移动端适配 -------------------- */
@media (max-width: 768px) {

    .about-page .nav-container,
    .news-page .nav-container,
    .notice-detail-page .nav-container {
        padding: 0 15px;
    }

    .about-page .inner-main,
    .news-page .inner-main,
    .notice-detail-page .inner-main,
    .faculty-page .inner-main {
        padding: 10px 15px 40px;
        gap: 20px;
    }

    .about-page .sidebar-header,
    .news-page .sidebar-header,
    .notice-detail-page .sidebar-header {
        height: 56px;
        font-size: 17px;
    }

    .about-page .sidebar-menu-item,
    .news-page .sidebar-menu-item,
    .notice-detail-page .sidebar-menu-item {
        min-width: 90px;
    }

    .about-page .sidebar-menu-item>a,
    .news-page .sidebar-menu-item>a,
    .notice-detail-page .sidebar-menu-item>a {
        padding: 0 12px;
        height: 44px;
        line-height: 44px;
        font-size: 14px;
    }

    .about-page .sidebar-submenu li a,
    .news-page .sidebar-submenu li a,
    .notice-detail-page .sidebar-submenu li a {
        height: 38px;
        line-height: 38px;
        font-size: 13px;
    }

    /* leaders */
    .about-page .leaders-list {
        gap: 20px;
        margin-bottom: 30px;
    }

    .about-page .leader-card {
        height: auto;
    }

    .about-page .leader-photo {
        width: 120px;
        height: 150px;
    }

    .about-page .leader-info {
        padding: 14px 16px;
    }

    .about-page .leader-info::after {
        width: 60px;
        height: 60px;
        right: 12px;
        bottom: 12px;
    }

    .about-page .leader-position-name {
        font-size: 16px;
        margin-bottom: 10px;
    }

    .about-page .leader-meta {
        font-size: 13px;
        line-height: 1.75;
    }

    /* articles */
    .news-page .news-list {
        gap: 10px;
        margin-bottom: 30px;
    }

    .news-page .news-list-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        height: auto;
        padding: 14px 16px;
    }

    .news-page .item-arrow {
        display: none;
    }

    .news-page .item-title {
        font-size: 14px;
        line-height: 1.5;
    }

    .news-page .item-date {
        font-size: 12px;
    }

    .news-page .pagination {
        gap: 6px;
        margin-bottom: 30px;
    }

    .news-page .page-btn,
    .news-page .page-num {
        height: 32px;
        padding: 0 10px;
        font-size: 13px;
    }

    .news-page .page-num {
        width: 32px;
    }

    /* article-detail */
    /* 移动端隐藏顶部横幅 */
    .notice-detail-page .detail-top-banner {
        display: none;
    }

    .notice-detail-page .detail-content {
        padding: 25px 20px 30px;
    }

    .notice-detail-page .detail-title {
        font-size: 18px;
        margin-bottom: 14px;
    }

    .notice-detail-page .detail-meta {
        margin-bottom: 25px;
    }

    .notice-detail-page .detail-time {
        font-size: 13px;
    }

    .notice-detail-page .detail-body {
        font-size: 14px;
        line-height: 1.8;
        margin-bottom: 30px;
    }

    .notice-detail-page .detail-body p {
        margin-bottom: 14px;
    }

    .notice-detail-page .detail-divider {
        margin-bottom: 20px;
    }

    .notice-detail-page .detail-nav {
        gap: 12px;
    }

    .notice-detail-page .nav-article {
        font-size: 13px;
        gap: 6px;
    }

    .notice-detail-page .nav-icon {
        width: 12px;
        height: 12px;
        margin-top: 3px;
    }

    /* 所有内页移动端 sidebar 只显示当前 active 菜单项 */
    .about-page .sidebar-header,
    .news-page .sidebar-header,
    .notice-detail-page .sidebar-header,
    .faculty-page .sidebar-header,
    .about-page .sidebar-menu-item:not(.active),
    .news-page .sidebar-menu-item:not(.active),
    .notice-detail-page .sidebar-menu-item:not(.active),
    .faculty-page .sidebar-menu-item:not(.active) {
        display: none;
    }

    /* active 菜单项样式：左对齐加粗，下划线宽度与文案一致 */
    .about-page .sidebar-menu-item.active,
    .news-page .sidebar-menu-item.active,
    .notice-detail-page .sidebar-menu-item.active,
    .faculty-page .sidebar-menu-item.active {
        display: block;
        min-width: 0;
    }
    .about-page .sidebar-menu-item.active > a,
    .news-page .sidebar-menu-item.active > a,
    .notice-detail-page .sidebar-menu-item.active > a,
    .faculty-page .sidebar-menu-item.active > a {
        display: inline-block;
        width: auto;
        height: auto;
        padding: 0 0 6px;
        margin: 0;
        font-weight: bold;
        font-size: 16px;
        color: #333333;
        line-height: 1.6;
        border-bottom: 2px solid #C13432;
        background: transparent;
        justify-content: flex-start;
    }

    /* 移动端 sidebar-menu 去掉外边框 */
    .about-page .sidebar-menu,
    .news-page .sidebar-menu,
    .notice-detail-page .sidebar-menu,
    .faculty-page .sidebar-menu {
        border: none;
    }

    /* 移动端师资sidebar的子菜单默认收起 */
    .faculty-page .sidebar-submenu {
        display: none !important;
    }
    .faculty-page .sidebar-arrow {
        display: none !important;
    }

    /* 移动端 meta 院系、邮箱不换行，研究方向可换行 */
    .faculty-page .faculty-meta p:nth-of-type(1),
    .faculty-page .faculty-meta p:nth-of-type(2) {
        white-space: nowrap;
    }

    /* ---------- 页脚 - 覆盖内页响应式样式，与首页保持一致 ---------- */
    .about-page .footer-row-top,
    .news-page .footer-row-top,
    .notice-detail-page .footer-row-top {
        background: transparent !important;
    }

    .about-page .footer-row-top-inner,
    .news-page .footer-row-top-inner,
    .notice-detail-page .footer-row-top-inner {
        flex-direction: column !important;
        justify-content: center !important;
        align-items: center !important;
        height: 139px !important;
        padding: 20px 15px !important;
        text-align: center !important;
        background-image: url('../hnu-images/home/bottomBg.png') !important;
        background-size: cover !important;
        background-position: center !important;
        background-repeat: no-repeat !important;
        max-width: none !important;
        border-bottom: none !important;
    }

    .about-page .footer-main,
    .news-page .footer-main,
    .notice-detail-page .footer-main {
        flex-direction: column !important;
        gap: 0 !important;
        width: 100% !important;
    }

    .about-page .footer-logo img,
    .news-page .footer-logo img,
    .notice-detail-page .footer-logo img {
        width: 205px !important;
        height: 31px !important;
        display: block !important;
        margin: 0 auto !important;
    }

    .about-page .footer-contact-info,
    .news-page .footer-contact-info,
    .notice-detail-page .footer-contact-info {
        display: none !important;
    }

    .about-page .footer-address,
    .news-page .footer-address,
    .notice-detail-page .footer-address {
        font-weight: 400 !important;
        font-size: 12px !important;
        color: #FFFFFF !important;
        line-height: 2 !important;
        text-align: center !important;
        margin-top: 10px !important;
    }

    .about-page .footer-row-bottom,
    .news-page .footer-row-bottom,
    .notice-detail-page .footer-row-bottom {
        height: 33px !important;
        background: #333333 !important;
        display: flex !important;
        justify-content: center !important;
        align-items: center !important;
        padding: 0 !important;
        border-top: none !important;
    }

    .about-page .footer-copyright,
    .news-page .footer-copyright,
    .notice-detail-page .footer-copyright {
        font-weight: 400 !important;
        font-size: 12px !important;
        color: #FFFFFF !important;
        text-align: center !important;
        visibility: hidden !important;
        position: relative !important;
        width: 100% !important;
        height: 100% !important;
        display: flex !important;
        justify-content: center !important;
        align-items: center !important;
    }

    .about-page .footer-copyright::after,
    .news-page .footer-copyright::after,
    .notice-detail-page .footer-copyright::after {
        content: "Copyright ? 2025湖南大学经济与贸易学院版权所有" !important;
        visibility: visible !important;
        position: absolute !important;
        top: 50% !important;
        left: 50% !important;
        transform: translate(-50%, -50%) !important;
        white-space: nowrap !important;
    }
}


/* -------------------- ≤576px：小屏手机微调 -------------------- */
@media (max-width: 576px) {

    .about-page .inner-main,
    .news-page .inner-main,
    .notice-detail-page .inner-main,
    .faculty-page .inner-main {
        padding: 8px 10px 0;
    }

    .about-page .sidebar-menu-item,
    .news-page .sidebar-menu-item,
    .notice-detail-page .sidebar-menu-item {
        min-width: 80px;
    }

    .about-page .sidebar-menu-item>a,
    .news-page .sidebar-menu-item>a,
    .notice-detail-page .sidebar-menu-item>a {
        padding: 0 10px;
        font-size: 13px;
    }

    .about-page .sidebar-submenu li a,
    .news-page .sidebar-submenu li a,
    .notice-detail-page .sidebar-submenu li a {
        font-size: 12px;
    }

    /* leaders */
    .about-page .leader-photo {
        width: 100px;
        height: 124px;
    }

    .about-page .leader-info {
        padding: 12px 14px;
    }

    .about-page .leader-position-name {
        font-size: 15px;
    }

    .about-page .leader-meta {
        font-size: 12px;
        line-height: 1.7;
    }

    /* articles */
    .news-page .news-list-item {
        padding: 12px 14px;
    }

    .news-page .item-title {
        font-size: 13px;
    }

    .news-page .page-btn,
    .news-page .page-num {
        height: 30px;
        padding: 0 8px;
        font-size: 12px;
    }

    .news-page .page-num {
        width: 30px;
    }

    /* article-detail */
    .notice-detail-page .detail-content {
        padding: 20px 16px 24px;
        margin-bottom: 0;
    }

    .notice-detail-page .detail-title {
        font-size: 16px;
    }

    .notice-detail-page .detail-body {
        font-size: 13px;
    }

    .notice-detail-page .nav-article {
        font-size: 12px;
    }
}