/* =========================================================
   响应式布局
   ========================================================= */

@media (max-width: 992px) {
    .brand-text h1 {
        font-size: 22px;
    }

    .brand-text p {
        font-size: 12px;
    }

    .navigation-list > li > a {
        min-width: 0;
        padding: 15px 10px;

        font-size: 15px;
    }

    .hero-slider {
        height: 380px;
    }

    .slide-overlay {
        padding: 0 36px;
    }

    .slide-overlay h2 {
        font-size: 32px;
    }

    .research-grid,
    .research-grid-three,
    .contact-home-grid,
    .info-card-grid {
        grid-template-columns: 1fr 1fr;
    }

    .two-column-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .sidebar-page-layout {
        grid-template-columns: 200px 1fr;
    }

    .page-main-content {
        padding: 24px 28px 32px;
    }

    .about-image img {
        height: 280px;
    }

    .news-layout,
    .news-layout-two {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .story-grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 28px;
    }
}

@media (max-width: 768px) {
    :root {
        --page-gutter: 16px;
    }

    .mobile-menu-button {
        display: block;
    }

    .main-navigation {
        display: none;
    }

    .main-navigation.mobile-navigation-open {
        display: block;
    }

    .navigation-list {
        flex-direction: column;
    }

    .navigation-list > li > a {
        text-align: left;
        border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    }

    .submenu {
        position: static;

        display: block;

        box-shadow: none;
        border-top: none;
    }

    .submenu a {
        padding-left: 36px;

        color: #ffffff;
        background: var(--primary-dark);

        border-bottom-color: rgba(255, 255, 255, 0.08);
    }

    .hero-section {
        padding-top: 16px;
    }

    .hero-slider {
        height: 300px;
    }

    .slide-overlay {
        padding: 0 24px;
    }

    .slide-overlay h2 {
        font-size: 24px;
    }

    .slide-overlay p {
        font-size: 14px;
        margin-bottom: 18px;
    }

    .section {
        padding: 36px 0;
    }

    .research-grid,
    .research-grid-three,
    .contact-home-grid,
    .info-card-grid,
    .story-grid,
    .featured-news {
        grid-template-columns: 1fr;
    }

    .more-info-head {
        flex-direction: column;
        gap: 4px;
    }

    .featured-news img {
        width: 100%;
        height: 180px;
    }

    .sidebar-page-layout {
        grid-template-columns: 1fr;
    }

    .page-sidebar {
        padding: 20px 0 0;

        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .sidebar-title {
        padding: 0 20px 12px;

        font-size: 18px;
    }

    .sidebar-nav {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
    }

    .sidebar-nav-item {
        padding: 14px 16px;

        font-size: 15px;
        text-align: center;
    }

    .sidebar-nav-item:nth-child(odd) {
        border-right: 1px solid var(--border-color);
    }

    .page-main-content {
        padding: 20px;
    }

    .content-panel-title {
        font-size: 20px;
    }

    .brand-logo {
        width: 56px;
        height: 56px;
    }

    .brand-text h1 {
        font-size: 16px;
    }

    .brand-text p {
        display: none;
    }
}

/* 首页中心动态新布局 */
@media (max-width: 992px) {
    .home-center-grid {
        grid-template-columns: 1fr;
        gap: 38px;
    }
}

@media (max-width: 768px) {
    .home-academic-summary-row {
        display: block;
        padding-left: 0;
    }

    .home-academic-summary-row time {
        display: block;
        margin: 5px 0 3px;
    }

    .home-academic-summary-row p {
        white-space: normal;
        display: -webkit-box;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
        overflow: hidden;
    }

    .home-academic-title-row {
        align-items: flex-start;
    }

    .home-academic-title-row > a {
        white-space: normal;
        display: -webkit-box;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
        overflow: hidden;
    }

    .home-notice-link {
        min-height: 78px;
    }

    .home-notice-date {
        width: 60px;
        height: 60px;
    }
}

/* =========================================================
   页脚响应式
   ========================================================= */
@media (max-width: 992px) {
    .footer-links-inner {
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
    }

    .footer-main-grid {
        grid-template-columns: 1fr;
        gap: 26px;
        padding-right: 24px;
        padding-left: 24px;
    }

    .footer-contact {
        padding-left: 0;
        padding-top: 22px;
        border-left: none;
        border-top: 1px solid rgba(255, 255, 255, 0.16);
    }

    .footer-main-grid::after {
        justify-self: start;
    }
}

@media (max-width: 768px) {
    .footer-links-inner {
        min-height: auto;
        padding: 20px 0;
    }

    .footer-links-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 9px;
    }

    .footer-main-grid {
        padding-top: 30px;
        padding-bottom: 30px;
    }

    .footer-brand-info h2 {
        font-size: 20px;
    }

    .footer-en-name {
        font-size: 13px;
    }

    .footer-contact p {
        font-size: 15px;
    }

    .footer-bottom {
        font-size: 11px;
        line-height: 1.6;
    }
}
/* =========================================================
   合作交流页面响应式
   ========================================================= */
@media (max-width: 1100px) {
    .cooperation-name-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    .cooperation-groups {
        gap: 28px;
    }

    .cooperation-name-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .cooperation-name {
        min-height: 50px;
        padding: 11px 14px;
    }

    .cooperation-invite {
        padding: 20px;
    }

    .cooperation-contact {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        padding: 10px 0;
    }

    .cooperation-contact-item,
    .cooperation-contact-item:first-child {
        padding: 14px 0;

        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .cooperation-contact-item:last-child {
        border-bottom: none;
    }
}