/* ==================== P0: 基础布局适配 ==================== */

@media (max-width: 768px) {
  /* --- 容器宽度 --- */
  .container {
    padding: 0 12px !important;
    max-width: 100% !important;
  }

  /* --- Header 区域 --- */
  .header-content {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 10px 0;
  }

  .logo-section {
    width: 100%;
  }

  .logo img {
    max-width: 280px;
    height: auto !important;
  }

  /* 搜索框适配 */
  .search-box {
    max-width: 100% !important;
    width: 100% !important;
  }

  .search-btn {
    padding: 8px 12px;
  }

  /* --- 导航栏 --- */
  .nav {
    height: auto !important;
    min-height: 44px;
    overflow: visible;
  }

  .nav .container {
    height: auto !important;
    position: relative;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    width: 100%;
    overflow: visible;
    background-image: url(../image/nav-bg.png);
    background-color: var(--primary, #003d8f);
    padding: 0;
  }

  .nav-list.active {
    display: flex;
  }

  .nav-list li {
    flex: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  }

  .nav-link {
    justify-content: flex-start;
    padding: 12px 16px !important;
    font-size: 15px !important;
    white-space: normal;
  }

  .nav-link::after {
    display: none;
  }

  /* 子菜单 */
  .nav-sub {
    position: static !important;
    transform: none !important;
    width: 100% !important;
    padding: 0 !important;
    background: rgba(0, 0, 0, 0.15) !important;
    display: none;
  }

  .nav-item-has-sub.sub-open .nav-sub {
    display: block;
  }

  .nav-sub li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav-sub li a {
    color: rgba(255, 255, 255, 0.9) !important;
    padding-left: 32px;
    height: 44px !important;
    line-height: 44px !important;
    font-size: 14px !important;
    border-bottom: none !important;
  }

  .nav-sub li a:hover {
    color: white !important;
    background-color: rgba(255, 255, 255, 0.1) !important;
  }

  /* 有子菜单箭头指示 */
  .nav-item-has-sub > .nav-link::before {
    content: '\25B8';
    margin-right: 6px;
    transition: transform 0.3s ease;
  }

  .nav-item-has-sub.sub-open > .nav-link::before {
    transform: rotate(90deg);
  }

  /* 汉堡菜单按钮 */
  .mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    position: absolute;
    right: 12px;
    top: 50%;
    /* transform: translateY(-50%); */
    z-index: 101;
  }

  .mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: white;
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 1px;
  }

  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
  }

  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
  }

  /* --- 主内容区 --- */
  .main {
    padding: 16px 0;
  }

  .content-grid {
    grid-template-columns: 1fr !important;
    gap: 16px;
  }

  /* --- 轮播图 --- */
  .yx-rotaion {
    max-width: 100% !important;
    aspect-ratio: 16 / 10;
  }

  /* 隐藏底部圆点指示器 */
  .yx-rotation-focus {
    display: none !important;
  }

  .yx-rotation-t {
    font-size: 13px;
    padding: 6px 10px;
  }

  .yx-rotaion-btn span {
    width: 28px;
    height: 28px;
  }

  /* --- 通知公告 --- */
  .announcement-content {
    gap: 8px;
  }

  .announcement-date {
    min-width: 52px;
    padding: 4px 6px;
  }

  .announcement-date .day {
    font-size: 18px;
  }

  .announcement-date .month {
    font-size: 12px;
  }

  .announcement-title {
    font-size: 14px !important;
    -webkit-line-clamp: 2;
  }

  .announcement-desc {
    font-size: 12px !important;
    -webkit-line-clamp: 1;
  }

  /* --- 模块标题 --- */
  .module-title h2,
  .card-header-primary h2,
  .dropdown-trigger {
    font-size: 18px !important;
  }

  /* --- Sections Grid --- */
  .sections-grid {
    grid-template-columns: 1fr !important;
    gap: 16px;
    margin-top: 16px;
    min-height: auto;
  }

  /* --- Section Card 列表项 --- */
  .section-link .label {
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-shrink: 1;
    min-width: 0;
  }

  .section-link .content {
    flex-wrap: wrap;
    gap: 4px;
  }

  .section-link .meta {
    width: 100%;
  }

  .section-link .date {
    font-size: 11px;
  }

  /* --- Tab 切换下拉菜单适配 --- */
  .dropdown-menu {
    position: static !important;
    display: flex !important;
    flex-wrap: wrap;
    gap: 0;
    border: none !important;
    box-shadow: none !important;
    background: transparent !important;
    padding: 4px 0 !important;
    border-radius: 0 !important;
  }

  .dropdown-menu li {
    padding: 6px 12px;
    font-size: 13px;
    background: var(--bg-gray, #f9fafb);
    border-radius: 4px;
    margin-right: 6px;
    margin-bottom: 4px;
  }

  .dropdown-wrap {
    flex-wrap: wrap;
  }

  /* ========== 列表页（xljy.htm 等）布局 ========== */

  /* 取消浮动，垂直堆叠 */
  .column_left,
  .column_right {
    float: none !important;
    width: 100% !important;
  }

  .column_left {
    margin-right: 0 !important;
    margin-bottom: 16px;
  }

  /* 侧边栏菜单 → 横向标签 */
  .column_menu ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
  }

  .column_menu ul li {
    border-bottom: none;
  }

  .column_menu ul li a {
    padding: 10px 16px !important;
    font-size: 14px !important;
    background: var(--bg-gray, #f5f5f5);
    border-radius: 6px;
    margin-right: 8px;
  }

  .column_menu ul li a:hover {
    padding-left: 16px !important; /* 覆盖桌面hover偏移动画 */
  }

  /* 主内容区 */
  .column_right {
    padding: 0 12px !important;
    margin-bottom: 16px;
  }

  .column_right .column_title h2 {
    font-size: 18px !important;
  }

  .column_right .column_position {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  /* ========== 新闻列表（news_list） ========== */
  .news_list ul li {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 4px;
    padding: 10px 0 !important;
    min-height: auto;
  }

  .news_list ul li a {
    font-size: 15px !important;
    white-space: normal;
    overflow: visible;
    flex: 1 1 100%;
    order: 1;
    line-height: 1.5;
  }

  .news_list ul li a::before {
    flex-shrink: 0;
  }

  .news_date {
    position: static !important;
    order: 0;
    font-size: 12px !important;
    color: var(--text-light, #999);
    white-space: nowrap;
  }

  /* 分隔线（section_u7_x） */
  .news_list ul span[id^="section_u"] {
    order: 2;
    width: 100%;
  }

  .news_list ul span[id^="section_u"] hr {
    margin: 2px 0;
  }

  /* 分页 */
  .pagebar {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 2px 6px;
    font-size: 13px;
    padding: 8px 0;
    white-space: normal;
    line-height: 2;
  }

  .p_pages span[class*="p_"] {
    padding: 3px 6px !important;
    margin: 0 1px !important;
    font-size: 12px !important;
    height: auto !important;
    line-height: 1.5 !important;
  }

  .p_goto_input {
    width: 36px !important;
  }

  /* --- 页脚 --- */
  .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 16px;
  }

  .footer-content {
    padding: 20px 0;
  }

  .footer-section p {
    font-size: 13px;
  }

  .footer-bottom {
    margin-top: 16px;
    padding-top: 16px;
  }

  /* --- 通用 --- */
  img {
    max-width: 100%;
    height: auto;
  }

  .card table,
  .announcement-item table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}


/* ==================== 480px小屏二次优化 ==================== */

@media (max-width: 480px) {
  .container {
    padding: 0 8px !important;
  }

  .logo img {
    max-width: 200px;
  }

  .nav-link {
    font-size: 14px !important;
    padding: 10px 12px !important;
  }

  .nav-sub li a {
    padding-left: 24px;
    font-size: 13px !important;
  }

  .module-title h2,
  .card-header-primary h2,
  .dropdown-trigger {
    font-size: 16px !important;
  }

  .yx-rotaion {
    aspect-ratio: 4 / 3;
  }

  .yx-rotation-t {
    font-size: 12px;
  }

  .announcement-date {
    min-width: 44px;
    padding: 2px 4px;
  }

  .announcement-date .day {
    font-size: 16px;
  }

  .section-link .label {
    font-size: 13px;
  }

  /* 列表页小屏 */
  .column_right .column_title h2 {
    font-size: 16px !important;
  }

  .news_list ul li a {
    font-size: 14px !important;
  }

  .column_menu ul li a {
    padding: 8px 12px !important;
    font-size: 13px !important;
  }

  /* 分页进一步缩小 */
  .pagebar {
    font-size: 12px;
  }

  .p_pages span[class*="p_"] {
    padding: 2px 4px !important;
    font-size: 11px !important;
  }

  .p_goto_input {
    width: 28px !important;
  }
}


/* ==================== P2: 触摸友好优化 ==================== */

@media (max-width: 768px) {
  /* 最小触摸区域 44px */
  .nav-link,
  .nav-sub li a,
  .search-btn,
  .dropdown-menu li {
    min-height: 44px;
  }

  /* 搜索框输入区域增大 */
  .search-box input {
    min-height: 44px;
    font-size: 16px; /* 防止iOS自动缩放 */
  }

  /* 面包屑链接 */
  .breadcrumb a {
    min-height: 36px;
    display: inline-flex;
    align-items: center;
  }

  /* 文章详情内容区 */
  .article-content {
    padding: 12px;
    font-size: 15px;
    line-height: 1.8;
  }

  .article-content img {
    margin: 12px 0;
  }

  /* 列表页触摸优化 */
  .column_menu ul li a {
    min-height: 40px;
    display: flex;
    align-items: center;
  }

  .news_list ul li a {
    min-height: 40px;
  }

  /* 分页 */
  .pagination a,
  .pagination span {
    min-width: 36px;
    min-height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 10px;
  }
}


/* ==================== 返回顶部按钮 ==================== */

.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  background: var(--primary, #003d8f);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  z-index: 999;
  font-size: 20px;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.back-to-top.visible {
  display: flex;
}

.back-to-top:hover {
  transform: scale(1.1);
  background: var(--primary-dark, #002a66);
}