/* ══════════════════════════════════════════════════════
   TSIA Theme - responsive.css
   响应式覆盖样式
   ══════════════════════════════════════════════════════ */

/* ── 平板端（768px - 1199px） ─────────────────────── */
@media (max-width: 1199px) {
    /* 服务入口 */
    .services-grid { grid-template-columns: repeat(4, 1fr); }

    /* 新闻 */
    .news-layout { gap: var(--spacing-md); }
    .news-carousel-wrap { flex: 0 0 38%; max-width: 38%; }

    /* 文章侧边栏 */
    .article-sidebar { flex: 0 0 220px; max-width: 220px; }

    /* 招聘 */
    .jobs-grid { grid-template-columns: repeat(2, 1fr); }

    /* LOGO墙 */
    .partners-grid { grid-template-columns: repeat(3, 1fr); }

    /* 页脚 */
    .footer-main__grid  { grid-template-columns: 200px 1fr; }
}

/* ── 手机端（<= 767px） ─────────────────────────── */
@media (max-width: 767px) {
    :root { --header-height: 60px; }

    /* 顶部工具栏 */
    .top-bar { display: none; }

    /* 通知公告 - 移动端显示最新一条 */
    .notice-ticker__scroll { overflow: hidden; height: 28px; }
    .notice-ticker__list { animation: none; }
    .notice-ticker__item { display: none; }
    .notice-ticker__item:first-child { display: block; }
    .notice-ticker__inner { justify-content: space-between; }

    /* 导航 */
    .site-header__hamburger { display: flex; }
    .site-nav {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: #fff;
        z-index: 999;
        overflow-y: auto;
        max-height: calc(100vh - 60px);
        padding: var(--spacing-md) 0;
        border-top: 2px solid var(--color-primary);
        box-shadow: var(--shadow-md);
    }
    .site-nav.is-open { display: block; }
    .site-nav__menu {
        flex-direction: column;
        height: auto;
        gap: 0;
        padding: 0 var(--spacing-md);
    }
    .site-nav__menu > li { height: auto; width: 100%; }
    .site-nav__menu > li > a {
        height: 48px;
        color: var(--color-text-primary);
        border-bottom: 1px solid var(--color-border) !important;
    }
    .site-nav__menu > li > a:hover,
    .site-nav__menu > li.current-menu-item > a {
        color: var(--color-primary);
        background: var(--color-primary-light);
    }
    .site-nav__menu .sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: var(--color-bg-light);
        display: none;
    }
    .site-nav__menu li.is-open > .sub-menu { display: block; }
    .site-nav__menu .sub-menu li a { color: var(--color-text-secondary); border-bottom: 1px solid var(--color-border); }

    /* 轮播图 */
    .banner-slide { height: 330px; }
    .banner-slide__title { font-size: 18px; }
    .banner-slide__subtitle { display: none; }

    /* 服务入口 - 垂直布局 */
    .services-layout { flex-direction: column; gap: 0; }
    .services-sidebar { flex-direction: column; width: 100%; gap: 0; }
    .services-sidebar__btns {
        flex-direction: row;
        width: 100%;
        gap: var(--spacing-sm);
        padding: 0 0 var(--spacing-sm) 0;
        justify-content: center;
    }
    .services-sidebar__btn { flex: 1; max-width: 180px; }
    .services-label { width: 100%; height: 40px; }
    .services-label__text { writing-mode: horizontal-tb; text-orientation: initial; letter-spacing: 6px; }
    .services-grid { grid-template-columns: repeat(4, 1fr); }

    /* 新闻 - 垂直堆叠 */
    .news-layout { flex-direction: column; }
    .news-carousel-wrap { flex: none; max-width: 100%; }
    .news-tabs-wrap { margin-top: var(--spacing-md); }
    .news-tab-btn { font-size: 13px; padding: 6px 12px; }

    /* 会员专区 */
    .member-zone-layout { grid-template-columns: 1fr; }

    /* 招聘 */
    .jobs-grid { grid-template-columns: 1fr; }

    /* LOGO墙 */
    .partners-grid { grid-template-columns: repeat(2, 1fr); }

    /* 会员 */
    .members-tabs { overflow-x: auto; flex-wrap: nowrap; }
    .members-tab  { white-space: nowrap; flex-shrink: 0; }
    .members-list { grid-template-columns: repeat(2, 1fr); }

    /* Dark Banners */
    .section-dark-banner { padding: var(--spacing-xl) 0; }
    .dark-banner__title { font-size: 18px; letter-spacing: 1px; }

    /* 工委会介绍页 */
    .committee-intro__layout { flex-direction: column; }
    .committee-intro__image { flex: none; max-width: 100%; }
    .committee-news__layout { flex-direction: column; }
    .committee-news__image { flex: none; max-width: 100%; }

    /* 文章布局 - 侧边栏改为顶部折叠 */
    .article-layout { flex-direction: column; gap: var(--spacing-md); padding: var(--spacing-md) 0; }
    .article-sidebar { flex: none; max-width: 100%; }
    .article-main { padding: var(--spacing-md); }

    /* 页脚 */
    .footer-main__grid  { grid-template-columns: 1fr; gap: var(--spacing-lg); }
    .footer-qrcodes     { justify-content: flex-start; }
    .footer-bottom__inner { justify-content: center; text-align: center; }
}

@media (max-width: 480px) {
    .banner-slide { height: 270px; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .news-tab-btn { font-size: 12px; padding: 5px 8px; }
    .partners-grid { grid-template-columns: repeat(2, 1fr); }
    .members-list  { grid-template-columns: repeat(2, 1fr); }
}