/* =========================================================================
   Pulse — 移动端适配层（在 pulse.css / app.css / admin.css 之后加载，用于覆盖）
   ---------------------------------------------------------------------------
   1. 手机（≤760px）：左侧导航改为底部标签栏 + 悬浮发帖按钮，内容全宽
   2. 平板（≤980px）：侧栏收成图标条
   3. 触屏：去掉 sticky hover，改用 :active 反馈，热区不小于 44px
   4. 安全区：适配 iPhone 刘海 / 手势条（env(safe-area-inset-*)）
   ========================================================================= */

/* ---- 桌面端隐藏「仅移动端」元素 ---- */
.nav-short { display: none; }
.navlink-guest { display: none; }
.fab-compose { display: none; }

/* =========================================================================
   触屏设备：hover 效果会「粘住」，改用按下反馈
   ========================================================================= */
@media (hover: none) {
  .post:hover { background: transparent; }
  .post[data-nav-href]:active { background: var(--bg-2); }
  .navlink:hover { background: transparent; color: var(--ink-2); }
  .navlink.is-active:hover { background: var(--bg-2); color: var(--ink); }
  .navlink:active { background: var(--bg-3); }
  .ptab:hover { background: transparent; color: var(--ink-3); }
  .ptab.is-active:hover { color: var(--ink); }
  .ptab:active { background: var(--bg-2); }
  .user-row:hover, .notif:hover, .mini-row:hover { background: transparent; }
  .user-row:active, .notif:active, .mini-row:active { background: var(--bg-2); }
  .post-card:hover, .quote:hover { border-color: var(--line); }
  .engage-item:hover { color: var(--ink-3); }
  .engage-item.engage-like.is-liked:hover { color: var(--danger); }
  .icon-btn:hover { background: transparent; color: var(--ink-3); }
  .icon-btn:active { background: var(--bg-3); color: var(--ink); }
  .btn:hover { background: var(--bg-3); border-color: var(--line); }
  .btn-primary:hover { background: var(--teal); border-color: var(--teal); }
  .btn-primary:active { background: #5fc4cf; }
  .btn:active { background: #232830; }
  .admin-link:hover, .admin-top-link:hover { background: transparent; color: var(--ink-2); }
  .admin-link:active, .admin-top-link:active { background: var(--bg-2); }
  a.ph-name:hover, .tok-tag:hover, .tok-mention:hover, .tok-link:hover,
  .link:hover, .profile-link a:hover, .thread-back:hover,
  .panel-link:hover, .site-foot a:hover { text-decoration: none; }
  .lightbox-close:hover { color: var(--ink-2); }
  .update-strip-btn:hover { background: var(--teal); }

  /* 触屏设备统一放大点按热区（用负外边距抵消，不改变视觉排版） */
  .engage-item { padding: 11px 2px; margin: -11px 0; min-height: 40px; touch-action: manipulation; }
  .icon-btn { min-width: 40px; min-height: 40px; touch-action: manipulation; }
  .btn { min-height: 40px; touch-action: manipulation; }
  .ptab { min-height: 48px; }
  .sidenav .navlink { touch-action: manipulation; }
  .admin-link, .admin-top-link { min-height: 40px; }
  .search-form .btn { min-height: 40px; }
}

/* =========================================================================
   平板 / 窄桌面（≤980px）：侧栏收成图标条，把宽度让给内容
   ========================================================================= */
@media (max-width: 980px) {
  :root { --nav-w: 76px; }
  .sidenav { padding: 18px 10px; align-items: center; }
  .sidenav .sidenav-brand { padding: 4px; margin-bottom: 14px; }
  .brand-word { display: none; }
  .sidenav .navlink {
    justify-content: center;
    padding: 12px;
    width: 100%;
  }
  .sidenav .navlink .navlabel { display: none; }
  .sidenav .nav-badge {
    position: absolute;
    top: 4px;
    right: 6px;
    margin: 0;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    font-size: 9.5px;
    line-height: 16px;
    border-radius: 8px;
  }
  .sidenav .navlink { position: relative; }
  .sidenav .sidenav-post { font-size: 13px; padding: 10px 4px; }
  .sidenav .sidenav-me { justify-content: center; padding: 8px 4px; }
  .sidenav .sidenav-me .me-text,
  .sidenav .sidenav-me .icon-btn { display: none; }
  .sidenav .sidenav-guest { display: none; }
  /* 侧栏收起后访客仍需登录入口 */
  .sidenav .navlink-guest { display: flex; }
}

/* =========================================================================
   手机（≤760px）
   ========================================================================= */
@media (max-width: 760px) {
  /* ---------- 布局骨架 ---------- */
  .app-grid {
    grid-template-columns: 1fr;
    max-width: 100%;
  }
  .column {
    border-right: none;
    min-width: 0;              /* 防止子元素 min-content 撑破 1fr 轨道 */
    min-height: calc(100vh - var(--tabbar-h));
    min-height: calc(100dvh - var(--tabbar-h) - var(--safe-b));
  }
  /* 给固定底栏让位，避免页脚 / 回复框被遮住 */
  body.site-body { padding-bottom: calc(var(--tabbar-h) + var(--safe-b)); }

  /* ---------- 左侧导航 → 底部标签栏 ---------- */
  .sidenav {
    position: fixed;
    left: 0;
    right: 0;
    top: auto;
    bottom: 0;
    z-index: 30;
    height: auto;
    min-height: var(--tabbar-h);
    flex-direction: row;
    align-items: stretch;
    gap: 0;
    padding: 0 var(--safe-r) var(--safe-b) var(--safe-l);
    background: rgba(15, 17, 21, 0.96);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    backdrop-filter: blur(14px) saturate(140%);
    border-right: none;
    border-top: 1px solid var(--line);
    border-bottom: none;
  }
  .sidenav .sidenav-brand,
  .sidenav .sidenav-post,
  .sidenav .sidenav-me,
  .sidenav .sidenav-guest { display: none; }

  .sidenav .sidenav-list {
    display: flex;
    flex-direction: row;
    flex: 1 1 100%;
    align-items: stretch;
    gap: 0;
    width: 100%;
    min-width: 0;
    overflow: visible;
  }
  .sidenav .navlink {
    position: relative;
    flex: 1 1 0;
    min-width: 0;
    width: auto;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    padding: 7px 2px 6px;
    border-radius: 0;
    font-size: 10.5px;
    font-weight: 500;
    line-height: 1.15;
    color: var(--ink-3);
    white-space: nowrap;
    touch-action: manipulation;
  }
  .sidenav .navlink svg { width: 22px; height: 22px; margin: 0 auto; }
  .sidenav .navlink.is-active { background: none; color: var(--ink); font-weight: 700; }
  .sidenav .navlink .navlabel {
    display: block;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .nav-full { display: none; }
  .nav-short { display: inline; }
  .sidenav .navlink-guest { display: flex; }
  .sidenav .nav-badge {
    position: absolute;
    top: 4px;
    left: 50%;
    margin: 0 0 0 6px;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    font-size: 9.5px;
    line-height: 16px;
    border-radius: 8px;
    box-shadow: 0 0 0 2px var(--bg);
  }

  /* ---------- 悬浮发帖按钮（替代侧栏「发帖」） ---------- */
  .fab-compose {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    right: calc(16px + var(--safe-r));
    bottom: calc(var(--tabbar-h) + var(--safe-b) + 16px);
    z-index: 31;
    width: 54px;
    height: 54px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: var(--teal);
    color: var(--teal-ink);
    cursor: pointer;
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.45);
    transition: transform 0.12s ease, background 0.12s ease;
    touch-action: manipulation;
  }
  .fab-compose:active { transform: scale(0.93); background: #5fc4cf; }

  /* ---------- 列头 ---------- */
  .col-head { padding: 12px 16px 10px; }
  .col-title { font-size: 17px; }
  .col-sub { font-size: 11.5px; }

  /* ---------- 帖子卡片 ---------- */
  .post { padding: 14px 16px 6px; }
  .post-grid { grid-template-columns: 40px minmax(0, 1fr); gap: 10px; }
  .post-head { gap: 6px; font-size: 14.5px; }
  .post-body { font-size: 15px; line-height: 1.7; }
  .post-body-big { font-size: 17px; }
  .post-photo, .post-card, .quote { margin-top: 10px; }
  .post-photo img, .post-card img { max-height: 380px; }
  .repost-by { margin-left: 28px; }

  /* 互动区：加大点按热区（≥44px 高），避免误触 */
  .engage { gap: 18px; margin-top: 4px; padding: 0; }
  .engage-item {
    padding: 12px 2px;
    margin: -12px 0;
    min-height: 44px;
    touch-action: manipulation;
  }
  .engage-item svg { width: 17px; height: 17px; }
  .post-actions .icon-btn,
  .post-report { width: 40px; height: 40px; }
  .icon-btn { width: 40px; height: 40px; touch-action: manipulation; }

  /* 头像 / 认证标记 */
  .avatar { flex: none; }

  /* ---------- 发帖条 ---------- */
  .compose { padding: 12px 16px; gap: 10px; }
  .compose-hint { font-size: 14px; }

  /* ---------- 公告 ---------- */
  .announce { padding: 12px 16px; font-size: 13px; }

  /* ---------- 个人主页 ---------- */
  .profile-banner { height: 116px; }
  .profile-top { padding: 0 16px; margin-top: -34px; }
  .profile-av { width: 84px; height: 84px; border-width: 3px; }
  .profile-av-mono { font-size: 32px; }
  .profile-follow { margin-bottom: 8px; padding: 8px 18px; font-size: 13px; }
  .profile-id, .profile-bio, .profile-meta, .profile-link, .profile-stats { padding-left: 16px; padding-right: 16px; }
  .profile-name { font-size: 19px; }
  .profile-bio { font-size: 14px; }
  .profile-stats { gap: 16px; font-size: 13px; }
  .ptab { padding: 13px 0; font-size: 14px; }

  /* ---------- 帖子详情 ---------- */
  .thread-replies-head { padding: 12px 16px 6px; }
  .reply-wall { margin: 16px 16px 24px; }
  .reply-form { padding: 12px 16px calc(20px + var(--safe-b)); }

  /* ---------- 弹窗 → 底部抽屉 ---------- */
  .modal { align-items: flex-end; }
  .modal-panel {
    width: 100%;
    max-width: 100%;
    margin-top: 0;
    max-height: calc(100vh - 24px);
    max-height: calc(100dvh - 24px);
    border-radius: 16px 16px 0 0;
    border-left: none;
    border-right: none;
    border-bottom: none;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--safe-b);
    animation: sheet-in 0.2s ease-out;
  }
  @keyframes sheet-in { from { opacity: 0; transform: translateY(18px); } }
  .modal-head { padding: 10px 12px 4px 16px; }
  .compose-row { padding: 4px 16px 0; }
  .compose-textarea { min-height: 84px; font-size: 16px; }
  .compose-preview { margin: 8px 16px 0; }
  .compose-preview img { max-height: 200px; }
  .compose-foot { padding: 10px 16px calc(12px + var(--safe-b)); }
  .compose-error { padding: 0 16px 12px; }

  /* ---------- 表单：iOS 聚焦时不会自动放大（需 ≥16px） ---------- */
  .input,
  .search-form input,
  .reply-textarea,
  .compose-textarea,
  .code-row .input { font-size: 16px; }
  .input, .reply-textarea { padding: 11px 12px; }

  /* ---------- 认证页 ---------- */
  .auth-body { min-height: 100vh; min-height: 100dvh; }
  .auth-wrap { padding: 30px 16px calc(24px + var(--safe-b)); }
  .auth-card { margin-top: 20px; padding: 22px 18px; border-radius: 12px; }
  .auth-title { font-size: 20px; }
  .code-row { gap: 8px; }
  .code-btn { min-width: 0; padding: 10px 12px; font-size: 13px; }

  /* ---------- 通知 ---------- */
  .notif { padding: 12px 16px; gap: 10px; }
  .notif-line { font-size: 14px; }

  /* ---------- 搜索 ---------- */
  .search-form { padding: 10px 16px; gap: 8px; }
  .search-form input { min-width: 0; }
  .search-form .btn { flex: none; }
  .search-section-title { padding: 12px 16px 4px; }
  .user-row { padding: 10px 16px; gap: 10px; }
  .user-row-count { display: none; }
  .user-row-text, .user-row-name { min-width: 0; }

  /* ---------- 设置 ---------- */
  .settings-block { padding: 16px; }
  .settings-form { max-width: 100%; }
  .settings-row { flex-direction: column; align-items: stretch; gap: 10px; }
  .settings-row .btn { width: 100%; }

  /* ---------- 灯箱 ---------- */
  .lightbox-stage { padding: 12px; }
  .lightbox-close { top: 6px; right: 6px; padding: 12px; }
  .lightbox-img { border-radius: 8px; }

  /* ---------- Toast：抬到底栏之上 ---------- */
  .toast {
    bottom: calc(var(--tabbar-h) + var(--safe-b) + 16px);
    max-width: calc(100vw - 32px);
    text-align: center;
    font-size: 13px;
  }

  /* ---------- 页脚 / 空状态 / 分页 ---------- */
  .site-foot { max-width: 100%; padding: 16px 16px 18px; }
  .feed-empty { padding: 56px 16px; }
  .tab-empty { padding: 36px 16px; }
  .pager { padding: 18px 16px 28px; }
  .page-body { padding: 8px 16px 32px; }
  .error-page { padding: 56px 16px; }
  .post-gone-row { margin: 8px 16px; }
  .flash-stack { padding: 0 16px; }
}

/* =========================================================================
   超小屏（≤400px）：进一步压缩留白
   ========================================================================= */
@media (max-width: 400px) {
  .sidenav .navlink { font-size: 10px; padding: 6px 1px 5px; }
  .sidenav .navlink svg { width: 20px; height: 20px; }
  .post { padding: 12px 12px 4px; }
  .post-grid { grid-template-columns: 36px minmax(0, 1fr); gap: 8px; }
  .engage { gap: 14px; }
  .compose { padding: 10px 12px; }
  .col-head { padding: 10px 12px 8px; }
  .announce, .flash-stack { padding-left: 12px; padding-right: 12px; }
  .notif, .user-row { padding-left: 12px; padding-right: 12px; }
}

/* =========================================================================
   横屏手机（高度很矮）：压缩底栏，避免吃掉内容
   ========================================================================= */
@media (max-width: 900px) and (max-height: 460px) and (orientation: landscape) {
  :root { --tabbar-h: 48px; }
  .sidenav .navlink { flex-direction: row; gap: 6px; font-size: 11px; }
  .sidenav .navlink svg { width: 18px; height: 18px; }
  .fab-compose { width: 46px; height: 46px; }
}

/* =========================================================================
   管理后台：宽表在手机上改成卡片（配合 td[data-label]）
   ========================================================================= */
@media (max-width: 860px) {
  .table.table-cards {
    display: block;
    width: 100%;
    overflow: visible;
    border-collapse: separate;
  }
  .table.table-cards thead { display: none; }
  .table.table-cards tbody { display: block; width: auto; min-width: 0; }
  .table.table-cards tbody tr {
    display: block;
    margin-bottom: 10px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--bg-2);
  }
  .table.table-cards tbody tr:hover { background: var(--bg-2); }
  .table.table-cards tbody tr.row-banned { border-color: rgba(224, 106, 106, .45); }
  .table.table-cards tbody td {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    width: auto;
    padding: 4px 0;
    border: none;
    white-space: normal;
    text-align: left;
    font-size: 13px;
  }
  .table.table-cards tbody td::before {
    content: attr(data-label);
    flex: 0 0 64px;
    padding-top: 1px;
    color: var(--ink-3);
    font-family: var(--font);
    font-size: 11.5px;
    font-weight: 500;
    line-height: 1.7;
    text-align: left;
  }
  .table.table-cards tbody td[colspan]::before { display: none; }
  .table.table-cards tbody td[colspan] { padding: 0; }
  .table.table-cards tbody td.actions-cell {
    justify-content: flex-end;
    gap: 8px;
    margin-top: 6px;
    padding-top: 10px;
    border-top: 1px solid var(--line-soft);
  }
  .table.table-cards tbody td.actions-cell::before { content: none; }
  .table.table-cards .row-actions { flex-wrap: wrap; justify-content: flex-end; width: 100%; }
  .table.table-cards .cell-content { max-width: none; }
  .table.table-cards .cell-user { display: flex; align-items: center; gap: 8px; }

  /* 键值表（站点设置）保持两列但压缩 */
  .table-kv th { width: 104px; font-size: 12px; }
  .table-kv td, .table-kv th { padding: 9px 10px; }
  .table-kv { font-size: 13px; }

  /* 表格容器（logs / dashboard）仍可横向滚动，加视觉提示 */
  .table:not(.table-cards):not(.table-kv) {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    background:
      linear-gradient(to left, rgba(20, 23, 28, .95), rgba(20, 23, 28, 0)) right center / 24px 100% no-repeat;
  }
  .table:not(.table-cards):not(.table-kv) thead,
  .table:not(.table-cards):not(.table-kv) tbody { width: max-content; min-width: 100%; }
  .table:not(.table-cards):not(.table-kv) th,
  .table:not(.table-cards):not(.table-kv) td { white-space: nowrap; }
}

/* 手机上的后台：更紧凑的筛选区与卡片 */
@media (max-width: 760px) {
  .admin-content { padding: 14px 12px calc(28px + var(--safe-b)); }
  .admin-top { padding: 10px 12px; gap: 10px; flex-wrap: wrap; }
  .admin-title { font-size: 16px; }
  .admin-top-link { font-size: 12px; padding: 6px 8px; }
  .admin-filter { gap: 8px; margin-bottom: 12px; }
  .admin-filter .input, .admin-filter .select { width: 100%; font-size: 16px; }
  .admin-filter .btn { flex: 1 1 auto; }
  .admin-side { padding: 8px 10px; gap: 6px; }
  .admin-brand { font-size: 12.5px; }
  .admin-brand span { display: none; }
  .admin-link { padding: 8px 10px; font-size: 13px; }
  .panel-head { padding: 12px 14px; }
  .stat-grid { gap: 10px; }
  .stat-card { padding: 12px 14px; }
  .stat-value { font-size: 20px; }
  .report-card { padding: 12px 14px; }
  .report-actions { flex-direction: column; align-items: stretch; gap: 8px; }
  .report-actions .input-sm, .report-actions .btn { width: 100%; }
  .pager { padding: 16px 0 8px; }
}