/* ============================================================
   移动端响应式样式表 v2.0
   覆盖: 首页 (firmware-*) + 详情页 (resource-*) + 用户中心 (dashboard-*) + 资源页 + 通用
   断点: 平板 ≤1024 / 手机 ≤768 / 小屏 ≤480 / 极小屏 ≤360
   ============================================================ */

/* === 全局基础 === */
*, *::before, *::after { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html { -webkit-text-size-adjust: 100%; -webkit-font-smoothing: antialiased; }

img, video, iframe { max-width: 100%; height: auto; }

body {
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  margin: 0;
  padding: 0;
}

/* 触摸目标最小尺寸（a11y） */
button, a, .btn, .menu-item, .firmware-nav-item,
[type="submit"], [type="button"], .page-link, .pagination-page {
  min-height: 44px;
  touch-action: manipulation;
}

/* === 通用：container/padding === */

/* ============================================================
   平板 ≤1024px
   ============================================================ */
@media (max-width: 1024px) {
  /* 容器内边距缩小 */
  .firmware-header,
  .resource-header-inner,
  .dashboard-main,
  .enhanced-dashboard { padding: 16px; }

  /* 资源页左右布局 → 上下布局 */
  .resource-body-layout {
    display: flex !important;
    flex-direction: column !important;
    gap: 16px !important;
  }
  .resource-sidebar {
    width: 100% !important;
    position: static !important;
  }
  .resource-article { width: 100% !important; }

  /* 资源页头部封面 - 缩小 */
  .header-cover-wrapper { max-width: 100% !important; }
  .header-cover { max-height: 240px !important; width: 100% !important; object-fit: cover; }

  /* 资源页标题 */
  .resource-title { font-size: 22px !important; line-height: 1.4 !important; }
  .resource-meta { font-size: 13px !important; }
}

/* ============================================================
   手机 ≤768px - 核心断点
   ============================================================ */
@media (max-width: 768px) {

  /* === 移动端导航栏 === */
  .nav { flex-wrap: wrap !important; padding: 8px 12px !important; gap: 8px !important; }
  .brand { font-size: 20px !important; letter-spacing: 1px !important; }
  .brand .svg-icon { width: 28px !important; height: 28px !important; }
  .nav-links {
    display: none !important;
    position: absolute !important;
    top: 100% !important;
    left: 0 !important;
    right: 0 !important;
    flex-direction: column !important;
    background: var(--brand, #1e3a8a) !important;
    padding: 10px 12px !important;
    gap: 4px !important;
    z-index: 999 !important;
    border-radius: 0 0 12px 12px !important;
    box-shadow: 0 8px 24px rgba(0,0,0,.3) !important;
    max-height: 70vh !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch;
  }
  .nav-links.active {
    display: flex !important;
  }
  .nav-links a {
    width: 100% !important;
    text-align: center !important;
    padding: 12px 16px !important;
    font-size: 15px !important;
    border-radius: 8px !important;
  }
  body.menu-open { overflow: hidden !important; }
  #themeSwitcherAnchor { flex-shrink: 0 !important; }

  /* === 移动端菜单按钮 === */
  .mobile-menu-toggle {
    display: flex !important;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 32px;
    height: 34px;
    min-height: 34px !important;
    padding: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
    border: 0;
    cursor: pointer;
  }
  .mobile-menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
  }
  .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); }

  /* === 首页 (firmware-*) === */

  /* 主布局：左右 → 上下 */
  .firmware-layout {
    display: flex !important;
    flex-direction: column !important;
    grid-template-columns: 1fr !important;
    gap: 0 !important;
  }

  /* 侧边栏：放在顶部 + 横向滚动 */
  .firmware-sidebar {
    position: relative !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    margin-bottom: 12px !important;
    border-radius: 12px !important;
    padding: 12px !important;
  }
  .firmware-sidebar-header,
  .firmware-sidebar > *:first-child {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
  }

  /* 分类导航：横向滚动 */
  .firmware-nav {
    display: flex !important;
    flex-direction: row !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    white-space: nowrap !important;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 8px !important;
    padding: 4px 0 !important;
  }
  .firmware-nav::-webkit-scrollbar { display: none; }

  .firmware-nav-item {
    flex-shrink: 0 !important;
    display: inline-flex !important;
    align-items: center;
    padding: 8px 14px !important;
    background: rgba(255, 255, 255, 0.1) !important;
    border-radius: 20px !important;
    font-size: 13px !important;
  }
  .firmware-nav-item.is-active {
    background: var(--brand) !important;
    color: #fff !important;
  }

  /* 主区 */
  .firmware-main {
    width: 100% !important;
    padding: 0 !important;
  }

  /* 顶部搜索区 */
  .firmware-header {
    padding: 16px !important;
    border-radius: 12px !important;
    margin-bottom: 12px !important;
  }
  .firmware-header h1 {
    font-size: 20px !important;
    line-height: 1.3 !important;
    margin: 0 0 12px !important;
  }
  .firmware-header h1 br { display: none; }
  .search-form {
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
  }
  .search-form input[type="text"] {
    width: 100% !important;
    padding: 12px 14px !important;
    font-size: 16px !important;  /* 防 iOS 缩放 */
  }
  .search-form button,
  .search-form .search-btn {
    width: 100% !important;
    padding: 12px !important;
  }

  /* 表格 → 卡片化 */
  .firmware-table-wrapper {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
  }
  .firmware-table {
    min-width: 600px;  /* 触发横向滚动 */
    font-size: 13px !important;
  }
  .firmware-table thead { display: none; }  /* 隐藏表头 */
  .firmware-table tbody tr {
    display: block !important;
    padding: 12px !important;
    margin-bottom: 10px !important;
    background: #fff;
    border-radius: 10px !important;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  }
  .firmware-table td {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    padding: 6px 0 !important;
    border: 0 !important;
  }
  .firmware-table td::before {
    content: attr(data-label) "：";
    font-weight: 500;
    color: var(--muted, #64748b);
    font-size: 12px;
    flex-shrink: 0;
    margin-right: 8px;
  }
  .firmware-table td:last-child {
    border-top: 1px dashed #e6eef9;
    margin-top: 8px;
    padding-top: 12px !important;
  }
  .firmware-table td:last-child::before { display: none; }

  /* 表格按钮全宽 */
  .btn-table-download,
  .firmware-table a.btn {
    width: 100% !important;
    padding: 10px !important;
    text-align: center;
  }

  /* 类型徽章 */
  .type-badge {
    font-size: 11px !important;
    padding: 3px 8px !important;
  }

  /* 分页 */
  .pagination-wrapper {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 4px !important;
    padding: 12px 0 !important;
  }
  .pagination-btn,
  .pagination-page,
  .page-link {
    min-width: 36px !important;
    height: 36px !important;
    padding: 0 10px !important;
    font-size: 13px !important;
  }

  /* === 资源详情页 (resource-*) === */

  .resource-header { padding: 12px !important; }
  .resource-header-inner {
    flex-direction: column !important;
    text-align: center;
    gap: 12px !important;
  }
  .header-cover-wrapper { max-width: 100% !important; }
  .header-info { width: 100% !important; }
  .pill, .owned-badge {
    display: inline-flex;
    margin: 0 4px 8px 0;
  }
  .resource-title { font-size: 18px !important; }
  .resource-meta { font-size: 12px !important; }

  .resource-article { padding: 0 !important; }
  .resource-description, .resource-gallery, .resource-detail {
    padding: 16px !important;
    margin-bottom: 12px !important;
    border-radius: 12px !important;
  }
  .resource-description h3,
  .resource-gallery h3,
  .resource-detail h3 {
    font-size: 15px !important;
    margin: 0 0 10px !important;
  }
  .section-icon { font-size: 16px !important; }

  /* 资源预览 - 网格 */
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 8px !important;
  }
  .gallery-item { aspect-ratio: 1; object-fit: cover; border-radius: 8px; }

  /* 资源侧边栏（购买框） */
  .purchase-box {
    padding: 16px !important;
    border-radius: 12px !important;
    position: sticky !important;
    bottom: 12px;
    box-shadow: 0 -4px 12px rgba(0,0,0,0.08);
  }
  .purchase-price-large { font-size: 28px !important; }
  .purchase-main-btn { font-size: 15px !important; padding: 14px !important; }

  /* 版权 */
  .resource-copyright-new { padding: 16px !important; border-radius: 12px !important; }
  .copyright-header { font-size: 14px !important; }
  .copyright-content { font-size: 12px !important; line-height: 1.6 !important; }

  /* === 用户中心 (dashboard-*) === */

  .enhanced-dashboard {
    flex-direction: column !important;
    padding: 12px !important;
    gap: 12px !important;
  }

  .dashboard-sidebar {
    width: 100% !important;
    position: relative !important;
    top: 0 !important;
    left: 0 !important;
    max-height: none !important;
  }
  .sidebar-menu {
    display: flex !important;
    flex-direction: row !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 4px !important;
    gap: 6px !important;
  }
  .sidebar-menu::-webkit-scrollbar { display: none; }
  .menu-item {
    flex-shrink: 0 !important;
    padding: 8px 14px !important;
    font-size: 13px !important;
    white-space: nowrap;
    border-radius: 8px !important;
    min-height: 36px !important;
  }

  .dashboard-main { padding: 0 !important; }

  /* 用户信息头 */
  .user-profile-header {
    flex-direction: column !important;
    text-align: center !important;
    padding: 20px !important;
    gap: 12px !important;
  }
  .user-profile-header > * { margin: 0 auto !important; }

  /* 头像 */
  .avatar-glow-ring { display: none !important; }  /* 移动端关闭光环（耗电） */

  /* 内容面板 */
  .content-panel {
    padding: 16px !important;
    border-radius: 12px !important;
    margin-bottom: 12px !important;
  }
  .content-panel h2,
  .content-panel h3 { font-size: 16px !important; }

  /* 统计卡片 */
  .stat-card,
  .stats-card,
  .dashboard-stat {
    padding: 14px !important;
  }
  .stat-card .stat-value,
  .stats-card .stat-value { font-size: 22px !important; }

  /* === 通用 === */

  /* 顶部导航 */
  .header-nav,
  .top-nav,
  nav.main-nav {
    padding: 8px 12px !important;
  }
  .header-nav .nav-link,
  .top-nav a {
    padding: 8px 12px !important;
    font-size: 13px !important;
  }

  /* footer */
  footer, .site-footer {
    padding: 16px 12px !important;
    font-size: 12px !important;
  }
  .footer-links {
    flex-direction: column;
    gap: 6px !important;
  }

  /* 悬浮按钮 - 不遮挡内容 */
  .floating-btn,
  .float-action,
  .share-float {
    bottom: 16px !important;
    right: 16px !important;
    width: 44px !important;
    height: 44px !important;
  }

  /* 通用按钮 - 全宽 */
  .btn-block-mobile { width: 100% !important; }

  /* 表格通用：横向滚动 */
  table:not(.no-scroll) {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
  }

  /* 隐藏元素 */
  .desktop-only { display: none !important; }
}

/* ============================================================
   小屏 ≤480px
   ============================================================ */
@media (max-width: 480px) {
  .firmware-header,
  .resource-header-inner,
  .dashboard-main,
  .enhanced-dashboard { padding: 10px !important; }

  .firmware-header h1 { font-size: 18px !important; }
  .resource-title { font-size: 16px !important; }

  .gallery-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 6px !important; }

  .purchase-price-large { font-size: 24px !important; }

  .auth-card { border-radius: 0 !important; }

  /* 触摸目标更紧凑但仍 ≥ 40px */
  .firmware-nav-item,
  .menu-item,
  .btn { min-height: 40px; }
}

/* ============================================================
   极小屏 ≤360px
   ============================================================ */
@media (max-width: 360px) {
  html { font-size: 14px; }
  .firmware-header h1 { font-size: 16px !important; }
  .firmware-nav-item { padding: 6px 12px !important; font-size: 12px !important; }
  .menu-item { padding: 6px 10px !important; font-size: 12px !important; }
  .gallery-grid { grid-template-columns: 1fr !important; }
  .purchase-price-large { font-size: 22px !important; }
}

/* ============================================================
   横屏手机（768x375 等）
   ============================================================ */
@media (max-height: 500px) and (orientation: landscape) {
  .firmware-sidebar { display: none !important; }
  .firmware-nav { display: flex !important; flex-direction: row !important; }
}

/* ============================================================
   桌面 ≥1025px
   ============================================================ */
@media (min-width: 1025px) {
  .mobile-only { display: none !important; }
}

/* ============================================================
   打印
   ============================================================ */
@media print {
  .firmware-sidebar, .dashboard-sidebar, .floating-btn, .float-action,
  .header-nav, footer, .pagination-wrapper { display: none !important; }
  .firmware-layout { display: block !important; }
  .firmware-table { min-width: 0 !important; font-size: 12px; }
}

/* ============================================================
   性能优化 - 移动端关闭昂贵动画
   ============================================================ */
@media (max-width: 768px) {
  *, *::before, *::after {
    animation-duration: 0.2s !important;
    transition-duration: 0.2s !important;
  }
  .avatar-glow-ring,
  .float-pulse,
  .infinite-spin { animation: none !important; }
  .backdrop-filter,
  .blur-bg { backdrop-filter: none !important; -webkit-backdrop-filter: none !important; }
}

/* 暗色模式（系统） */
@media (prefers-color-scheme: dark) and (max-width: 768px) {
  /* 保持品牌色不变 */
}

/* 减少动画（a11y） */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   v3.0 新增：问答社区 / 需求悬赏 / 知识库 / 查询库 / 后台 / 积分商城 / 广告 / 登录注册
   ============================================================ */

/* === 平板 ≤1024px === */
@media (max-width: 1024px) {
  /* 后台管理 - 左右布局转上下 */
  .cat-main, .brand-main, .model-main, .ann-grid, .clayout {
    flex-direction: column !important;
  }
  .cat-main > *, .brand-main > *, .model-main > *, .ann-grid > *, .clayout > * {
    width: 100% !important;
    max-width: 100% !important;
  }
  .cat-form-panel, .brand-form-panel, .model-form-panel {
    position: static !important;
    max-height: none !important;
  }
  /* 后台表单网格 - 2列转1列 */
  .cform-grid, .ann-row2, .cat-form-row, .brand-form-row, .model-form-row {
    grid-template-columns: 1fr !important;
  }
  /* 轮播图统计 - 3列转2列 */
  .cstats { grid-template-columns: repeat(2, 1fr) !important; }
}

/* === 手机 ≤768px - 核心断点 === */
@media (max-width: 768px) {

  /* === 问答社区 (qa-*) === */
  .qa-page-wrap, .qa-detail-wrap, .qa-ask-wrap { padding: 12px !important; }
  .qa-page-header { flex-direction: column !important; align-items: flex-start !important; gap: 10px !important; }
  .qa-page-title { font-size: 18px !important; }
  .qa-search-form { flex-direction: column !important; gap: 8px !important; }
  .qa-search-form input[type="text"] { width: 100% !important; min-width: 0 !important; }
  .qa-search-form button, .qa-search-form .btn { width: 100% !important; }
  .qa-sort-bar { flex-wrap: wrap !important; gap: 8px !important; }
  .qa-question-top { flex-direction: column !important; align-items: flex-start !important; gap: 6px !important; }
  .qa-question-title-wrap { width: 100% !important; }
  .qa-question-link { font-size: 15px !important; word-break: break-word !important; }
  .qa-question-summary { font-size: 13px !important; -webkit-line-clamp: 2 !important; }
  .qa-meta-row { flex-wrap: wrap !important; gap: 6px 12px !important; font-size: 12px !important; }
  .qa-tags-wrap { flex-wrap: wrap !important; gap: 4px !important; }
  .qa-tag { font-size: 11px !important; padding: 2px 8px !important; }
  .qa-breadcrumb { font-size: 12px !important; flex-wrap: wrap !important; }
  .qa-detail-header { flex-direction: column !important; align-items: flex-start !important; gap: 8px !important; }
  .qa-detail-title { font-size: 18px !important; line-height: 1.4 !important; word-break: break-word !important; }
  .qa-detail-meta { flex-wrap: wrap !important; gap: 6px 12px !important; font-size: 12px !important; }
  .qa-detail-content { font-size: 14px !important; line-height: 1.7 !important; }
  .qa-detail-images { grid-template-columns: repeat(2, 1fr) !important; gap: 8px !important; }
  .qa-detail-tags { flex-wrap: wrap !important; gap: 4px !important; }
  .qa-detail-actions { flex-wrap: wrap !important; gap: 8px !important; }
  .qa-action-btn { font-size: 13px !important; padding: 8px 14px !important; }
  .qa-answer-header { flex-wrap: wrap !important; gap: 4px 10px !important; font-size: 12px !important; }
  .qa-answer-content { font-size: 14px !important; line-height: 1.7 !important; }
  .qa-answer-actions { flex-wrap: wrap !important; gap: 6px !important; }
  .qa-vote-btn { font-size: 12px !important; padding: 6px 12px !important; }
  .qa-comment-input { width: 100% !important; min-width: 0 !important; }
  .qa-answer-textarea { font-size: 14px !important; }
  .qa-answer-form-footer { flex-direction: column !important; gap: 8px !important; align-items: stretch !important; }
  .qa-form-input, .qa-form-select, .qa-form-textarea { font-size: 16px !important; }
  .qa-upload-area { padding: 20px !important; }
  .qa-pagination { flex-wrap: wrap !important; justify-content: center !important; gap: 4px !important; }
  .qa-modal-box { width: 92% !important; max-width: 92% !important; padding: 20px !important; }
  .qa-report-textarea { font-size: 14px !important; }

  /* === 案例库 (kb-*) === */
  .kb-page-wrap, .kb-detail-wrap, .kb-post-wrap { padding: 12px !important; }
  .kb-search-form { flex-direction: column !important; gap: 8px !important; }
  .kb-search-input-wrap { min-width: 0 !important; }
  .kb-search-form input[type="text"] { width: 100% !important; min-width: 0 !important; }
  .kb-search-form button { width: 100% !important; }
  .kb-layout { flex-direction: column !important; }
  .kb-sidebar { width: 100% !important; max-width: 100% !important; }
  .kb-content { width: 100% !important; }
  .kb-card { padding: 14px !important; }
  .kb-card-link { font-size: 15px !important; }
  .kb-card-summary { font-size: 13px !important; }
  .kb-list-header { padding: 10px 14px !important; }
  .kb-list-header-title { font-size: 14px !important; }
  .kb-detail-title { font-size: 20px !important; }
  .kb-detail-content { font-size: 14px !important; line-height: 1.7 !important; padding: 14px !important; }
  .kb-detail-content img { max-width: 100% !important; }
  .kb-vip-lock-card { padding: 24px 20px !important; max-width: 360px !important; margin-left: auto !important; margin-right: auto !important; }
  .kb-cat-nav { flex-direction: row !important; overflow-x: auto !important; flex-wrap: nowrap !important; gap: 8px !important; -webkit-overflow-scrolling: touch; }
  .kb-cat-item { flex-shrink: 0 !important; white-space: nowrap !important; }
  .kb-sort-bar { flex-wrap: wrap !important; gap: 6px !important; }
  .kb-side-item { padding: 8px 14px !important; }
  .kb-side-link { font-size: 13px !important; }
  .kb-hero-stat { padding: 4px 12px !important; }
  .kb-hero-stat-num { font-size: 16px !important; }

  /* === 查询库前台 === */
  .ql-page { padding: 12px !important; }
  .ql-header { padding: 20px !important; border-radius: 12px !important; }
  .ql-header h1 { font-size: 20px !important; }
  .ql-stats { gap: 10px !important; }
  .ql-stat { padding: 6px 12px !important; }
  .ql-stat-num { font-size: 16px !important; }
  .ql-search-box { padding: 16px !important; border-radius: 12px !important; }
  .ql-search-form { flex-direction: column !important; gap: 8px !important; }
  .ql-search-input { min-width: 100% !important; font-size: 16px !important; padding: 12px 14px !important; }
  .ql-search-btn { width: 100% !important; padding: 12px !important; }
  .ql-ci-label { font-size: 13px !important; }
  .ql-results { border-radius: 12px !important; }
  .ql-results-header { padding: 12px 14px !important; }
  .ql-results-header h2 { font-size: 14px !important; }
  .ql-table { font-size: 13px !important; }
  .ql-table th, .ql-table td { padding: 8px 10px !important; }
  .ql-sig-name { font-size: 12px !important; padding: 2px 8px !important; }
  .ql-scroll { max-height: 400px !important; }
  .ql-empty-icon { font-size: 48px !important; }
  .ql-empty-text { font-size: 14px !important; }

  /* === 后台管理通用 (ap-*) === */
  .ap-wrap { padding: 0 !important; }
  .ap-stat-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 10px !important; }
  .ap-stat-card { padding: 14px !important; border-radius: 10px !important; }
  .ap-stat-card .ap-sv { font-size: 24px !important; }
  .ap-stat-card .ap-si { font-size: 36px !important; }
  .ap-data-card { padding: 14px !important; border-radius: 12px !important; }
  .ap-dc-head { flex-wrap: wrap !important; gap: 6px !important; }
  .ap-dc-head h2 { font-size: 16px !important; }
  .ap-f-grid { grid-template-columns: 1fr !important; gap: 12px !important; }
  .ap-field input, .ap-field select, .ap-field textarea { font-size: 16px !important; padding: 10px !important; }
  .ap-search-bar { flex-direction: column !important; align-items: stretch !important; }
  .ap-search-bar input { width: 100% !important; }
  .ap-search-bar form { flex-direction: column !important; }
  .ap-table { font-size: 12px !important; }
  .ap-table th, .ap-table td { padding: 8px 6px !important; }
  .ap-btn-row { padding: 5px 10px !important; font-size: 11px !important; }
  .ap-actions { flex-wrap: wrap !important; gap: 8px !important; }
  .ap-act-btn { padding: 8px 16px !important; font-size: 12px !important; }
  .ap-pagination { flex-wrap: wrap !important; gap: 4px !important; }
  .ap-pagination a { padding: 5px 10px !important; font-size: 12px !important; }
  .ap-empty .ap-ei { font-size: 36px !important; }

  /* === 后台设置 === */
  .settings-page { padding: 0 !important; }
  .settings-tabs { gap: 2px !important; flex-wrap: nowrap !important; overflow-x: auto !important; scrollbar-width: none !important; padding-bottom: 4px !important; }
  .settings-tabs::-webkit-scrollbar { display: none !important; }
  .settings-tab { padding: 8px 12px !important; font-size: 13px !important; white-space: nowrap !important; flex-shrink: 0 !important; }
  .settings-card { padding: 16px !important; border-radius: 10px !important; }
  .settings-row, .settings-row3 { grid-template-columns: 1fr !important; }
  .settings-field input, .settings-field select, .settings-field textarea { font-size: 16px !important; }
  .settings-submit { width: 100% !important; padding: 14px !important; }

  /* === 后台轮播图 === */
  .cstats { grid-template-columns: 1fr !important; gap: 10px !important; }
  .cform-grid { grid-template-columns: 1fr !important; }
  .cgrid { grid-template-columns: 1fr !important; }
  .cbtn { font-size: 12px !important; padding: 6px 12px !important; }

  .stat-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 10px !important; }
  .form-grid { grid-template-columns: 1fr !important; }
  .prize-grid { grid-template-columns: repeat(2, 1fr) !important; }
  .lc-table { font-size: 12px !important; }
  .lc-table th, .lc-table td { padding: 6px 8px !important; }

  /* === 后台卡密/用户管理 === */
  .ap-dc-body { overflow-x: auto !important; -webkit-overflow-scrolling: touch; }

  /* === 后台公告 === */
  .ann-grid { flex-direction: column !important; }
  .ann-table { font-size: 12px !important; }
  .ann-row2 { grid-template-columns: 1fr !important; }

  /* === 后台友链 === */
  .fstats { grid-template-columns: repeat(2, 1fr) !important; gap: 10px !important; }
  .ftable { font-size: 12px !important; }
  .fbtn { font-size: 11px !important; padding: 5px 10px !important; }

  /* === 后台资源管理 === */
  .ap-filter { flex-direction: column !important; gap: 8px !important; }
  .ap-filter > * { width: 100% !important; }
  .ap-search input { width: 100% !important; }

  /* === 后台分类/品牌/型号管理 === */
  .cat-main, .brand-main, .model-main { flex-direction: column !important; }
  .cat-main > *, .brand-main > *, .model-main > * { width: 100% !important; }
  .cat-form-row, .brand-form-row, .model-form-row { grid-template-columns: 1fr !important; }
  .cat-table, .brand-table, .model-table { font-size: 12px !important; }

  /* === 积分商城 === */
  .points-grid { grid-template-columns: 1fr !important; gap: 12px !important; }
  .point-product { flex-direction: column !important; }
  .point-product img { width: 100% !important; max-width: 200px !important; margin: 0 auto !important; }
  .point-price { flex-direction: column !important; gap: 6px !important; align-items: stretch !important; }
  .shipping-info input, .shipping-info textarea { width: 100% !important; font-size: 16px !important; }
  .points-stats { grid-template-columns: repeat(2, 1fr) !important; }

  /* === 广告购买 === */
  .ad-table, .ad_buy table { font-size: 12px !important; }
  .ad_buy .inline, .ad_buy .mini-form { flex-wrap: wrap !important; gap: 6px !important; }
  .ad_buy select, .ad_buy input { max-width: 120px !important; font-size: 13px !important; }
  .ad_buy button { font-size: 12px !important; padding: 6px 10px !important; }

  /* === 登录/注册模态框 === */
  .auth-modal-overlay { padding: 0 !important; align-items: stretch !important; }
  .auth-modal { width: 100% !important; max-width: 100% !important; height: 100% !important; max-height: 100% !important; border-radius: 0 !important; overflow-y: auto !important; }
  .auth-tabs { flex-wrap: wrap !important; }
  .auth-tab { flex: 1 !important; min-width: 33% !important; font-size: 13px !important; padding: 10px 8px !important; }
  .auth-form-group input { font-size: 16px !important; }
  .captcha-row { flex-direction: column !important; gap: 8px !important; }
  .captcha-row input { width: 100% !important; }
  .captcha-row img { width: 100% !important; height: 40px !important; }

  /* === 增强版仪表盘 === */
  .enhanced-dashboard { padding: 10px !important; gap: 10px !important; }
  .dashboard-sidebar { width: 100% !important; position: relative !important; }
  .stats-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 10px !important; }
  .payment-methods { grid-template-columns: 1fr !important; }
  .plan-cards { grid-template-columns: 1fr !important; gap: 12px !important; }
  .plan-card { padding: 16px !important; }
  .plan-price { font-size: 24px !important; }
  .recharge-form { max-width: 100% !important; }
  .recharge-form input { font-size: 16px !important; }

  /* === 通用后台管理适配 === */
  .admin-wrap, .ap-wrap { max-width: 100% !important; padding: 8px !important; }
  .admin-tabs { flex-wrap: wrap !important; gap: 4px !important; }
  .admin-tab { padding: 8px 12px !important; font-size: 13px !important; }

  /* === 通用表格增强 === */
  table.data-table, table.admin-table, table.list-table {
    display: block !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap !important;
  }

  /* === 通用表单网格 === */
  .form-row, .form-row-2, .form-row-3 {
    grid-template-columns: 1fr !important;
  }

  /* === 通用统计卡片 === */
  .stat-cards, .stats-row {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px !important;
  }

  /* === 通用分页 === */
  .pagination, .pager {
    flex-wrap: wrap !important;
    justify-content: center !important;
    gap: 4px !important;
  }
  .pagination a, .pagination span, .pager a, .pager span {
    padding: 6px 10px !important;
    font-size: 12px !important;
  }
}

/* === 小屏 ≤480px === */
@media (max-width: 480px) {
  /* 问答 */
  .qa-page-title, .qa-detail-title { font-size: 16px !important; }
  .qa-detail-images { grid-template-columns: 1fr !important; }
  .qa-detail-content, .qa-answer-content { font-size: 13px !important; }
  .qa-action-btn, .qa-vote-btn { font-size: 12px !important; padding: 6px 10px !important; }

  /* 后台统计 - 2列转1列 */
  .ap-stat-grid, .stat-grid, .stats-grid, .stat-cards, .stats-row, .fstats, .points-stats {
    grid-template-columns: 1fr !important;
  }
  .ap-stat-card { padding: 12px !important; }
  .ap-stat-card .ap-sv { font-size: 20px !important; }

  /* 后台表格进一步缩小 */
  .ap-table, .lc-table, .ann-table, .ftable, .cat-table, .brand-table, .model-table {
    font-size: 11px !important;
  }
  .ap-table th, .ap-table td { padding: 6px 4px !important; }
  .ap-btn-row { padding: 4px 8px !important; font-size: 10px !important; }

  /* 查询库 */
  .ql-header { padding: 16px !important; }
  .ql-header h1 { font-size: 18px !important; }
  .ql-stat-num { font-size: 14px !important; }

  /* 登录注册 */
  .auth-tab { font-size: 12px !important; padding: 8px 6px !important; }

  /* 增强仪表盘统计 */
  .stats-grid { grid-template-columns: 1fr !important; }

  /* 通用 */
  .settings-tab { padding: 6px 10px !important; font-size: 12px !important; }
  .admin-tab { padding: 6px 10px !important; font-size: 12px !important; }
}

/* === 极小屏 ≤360px === */
@media (max-width: 360px) {
  .qa-question-link { font-size: 14px !important; }
  .qa-detail-title, .kb-detail-title { font-size: 15px !important; }
  .ql-header h1 { font-size: 16px !important; }
  .auth-tab { font-size: 11px !important; padding: 6px 4px !important; }
  .plan-card { padding: 12px !important; }
  .plan-price { font-size: 20px !important; }
}

/* === 后台侧边栏菜单适配(Art Design Pro 抽屉式) === */
@media (max-width: 768px) {
  .admin-shell { display: block !important; }
  .admin-sidebar {
    position: fixed !important;
    width: 220px !important;
    height: 100vh !important;
    transform: translateX(-100%) !important;
    transition: transform 0.25s ease !important;
    z-index: 1000 !important;
    padding: 0 !important;
  }
  .admin-sidebar.open {
    transform: translateX(0) !important;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15) !important;
  }
  .admin-logo { font-size: 15px !important; padding: 16px 20px !important; }
  .admin-sidebar nav {
    display: flex !important;
    flex-direction: column !important;
    gap: 2px !important;
    padding: 12px 8px !important;
    flex: 1 !important;
    min-height: 0 !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
  }
  .admin-sidebar nav a {
    padding: 10px 16px !important;
    border-radius: 8px !important;
    font-size: 14px !important;
  }
  .admin-bottom-nav {
    padding: 12px 8px !important;
  }
  .admin-main {
    margin-left: 0 !important;
    padding: 0 !important;
    height: auto !important;
    overflow: visible !important;
  }
  .admin-content {
    flex: 1 !important;
    min-height: 0 !important;
    padding: 16px !important;
    overflow-y: visible !important;
  }
  .admin-header {
    padding: 0 16px !important;
  }
  .admin-search { display: none !important; }
  .admin-menu-toggle { display: inline-block !important; }
  .admin-header-icon { width: 32px !important; height: 32px !important; font-size: 16px !important; }
  .admin-copy { margin-left: 0 !important; }
  /* 遮罩层 */
  .admin-sidebar-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.45);
    z-index: 999;
  }
  .admin-sidebar-overlay.show { display: block; }
}