/* ===================================================================
   远程中控平台 — 界面样式
   浅色后台风格：白色顶栏 + 深灰侧栏 + 浅灰内容区（对齐会议预约系统）
   =================================================================== */

:root {
  /* 表面 */
  --bg: #f3f6f8;            /* 内容区背景 */
  --surface: #ffffff;       /* 卡片 / 顶栏 */
  --surface-2: #fafbfc;     /* 内嵌浅底 */
  --surface-3: #f5f7fa;     /* 悬停 / 标签底 */
  --sidebar: #2d3037;       /* 侧栏深灰 */
  --sidebar-hover: #24262c;
  --sidebar-active: #1d2026;
  --sidebar-line: #26292f;

  /* 文本 */
  --text: #27364d;
  --text-body: #333333;
  --text-dim: #4a5563;
  --muted: #7b8696;
  --faint: #98a1ad;

  /* 主色与语义色 */
  --primary: #4586eb;
  --primary-hover: #19b6fc;
  --primary-deep: #0d57b7;
  --primary-soft: #eaf2fd;
  --ok: #28a745;
  --ok-soft: #e8f7ee;
  --warn: #b7791f;
  --warn-soft: #fdf3e5;
  --danger: #e5544b;
  --danger-soft: #fdeceb;

  /* 线条与阴影 */
  --line: #e8eaee;
  --line-soft: #f0f2f5;
  --line-input: #d9dde3;
  --shadow-1: 0 1px 2px rgba(0, 0, 0, .05);
  --shadow-2: 0 4px 16px rgba(0, 0, 0, .10);
  --shadow-3: 0 12px 40px rgba(0, 0, 0, .18);

  --radius: 4px;
  --radius-s: 3px;
  --ring: 0 0 0 2px rgba(69, 134, 235, .18);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text-body);
  font: 14px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  -webkit-font-smoothing: antialiased;
}

::selection { background: #cfe2ff; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #cfd6de; border-radius: 8px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #b9c2cd; }
::-webkit-scrollbar-track { background: transparent; }

button, input, select { font: inherit; }
[hidden] { display: none !important; }
:focus-visible { outline: none; box-shadow: var(--ring); }

.muted { color: var(--muted); }
.error {
  margin: 6px 0;
  padding: 8px 10px;
  font-size: 12.5px;
  color: var(--danger);
  background: var(--danger-soft);
  border: 1px solid #f6d5d2;
  border-radius: var(--radius-s);
}

/* ---------- 按钮 ---------- */
.btn {
  cursor: pointer;
  padding: 7px 14px;
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--text-body);
  background: #fff;
  border: 1px solid var(--line-input);
  border-radius: var(--radius-s);
  transition: color .15s, background .15s, border-color .15s, box-shadow .15s;
}
.btn:hover { color: var(--primary); border-color: #9cc0f5; background: #f7faff; }
.btn:active { transform: translateY(1px); }

.btn.primary { color: #fff; background: var(--primary); border-color: var(--primary); }
.btn.primary:hover { color: #fff; background: var(--primary-hover); border-color: var(--primary-hover); }

.btn.danger { color: var(--danger); border-color: #f0c4c1; background: #fff; }
.btn.danger:hover { color: #fff; background: var(--danger); border-color: var(--danger); }

.btn.ghost { color: var(--faint); background: transparent; border-color: transparent; }
.btn.ghost:hover { color: var(--primary); background: #f2f8ff; border-color: transparent; }

.btn.small { padding: 4px 10px; font-size: 12.5px; border-radius: var(--radius-s); }
.btn.block { width: 100%; margin-top: 4px; padding: 9px 14px; font-size: 14.5px; }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }

/* ---------- 表单 ---------- */
.field { display: block; margin-bottom: 14px; }
.field span { display: block; margin-bottom: 6px; font-size: 12.5px; color: var(--muted); }
.field input, .field select {
  width: 100%;
  padding: 8px 10px;
  font-size: 13.5px;
  color: var(--text-body);
  background: #fff;
  border: 1px solid var(--line-input);
  border-radius: var(--radius-s);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.field input::placeholder { color: #b6bdc7; }
.field input:focus, .field select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(69, 134, 235, .12);
}
.field select { padding-right: 6px; }

.form-grid { display: grid; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
}

.hint { margin: 10px 0 0; font-size: 12px; color: #a8b0ba; }
.alert {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--warn);
  background: var(--warn-soft);
  border: 1px solid #f7e3c3;
  border-radius: var(--radius-s);
}

/* ---------- 顶栏 ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 60px;
  padding: 0 20px;
  background: var(--surface);
  box-shadow: 0 1px 2px rgba(0, 0, 0, .06);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: .2px;
}
.logo-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 7px;
  background: linear-gradient(135deg, #4b8cf0, #2a6bd6);
  box-shadow: 0 2px 6px rgba(42, 107, 214, .28);
}
.logo-mark svg { width: 17px; height: 17px; fill: #fff; }
.brand .tag {
  padding: 1px 6px;
  font-size: 11px;
  font-weight: 400;
  color: var(--primary);
  background: var(--primary-soft);
  border: 1px solid #d6e6fb;
  border-radius: var(--radius-s);
}

/* 左侧一级菜单（竖排） */
.page-nav {
  display: grid;
  gap: 0;
  padding: 8px 0;
  border-bottom: 1px solid var(--sidebar-line);
}
.page-tab {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  height: 46px;
  padding: 0 16px 0 19px;
  text-align: left;
  font-size: 14px;
  color: #d5dae2;
  background: transparent;
  border: none;
  border-left: 3px solid transparent;
  border-radius: 0;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.page-tab:hover { background: var(--sidebar-hover); color: #fff; }
.page-tab.active {
  background: var(--sidebar-active);
  color: #fff;
  font-weight: 600;
  border-left-color: var(--primary);
}
.tab-icon {
  width: 16px;
  height: 16px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linejoin: round;
  stroke-linecap: round;
  opacity: .75;
}
.page-tab.active .tab-icon { opacity: 1; }

/* 顶栏状态点 */
.tag .dot-ok {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 6px;
  border-radius: 50%;
  background: #2ec26a;
  box-shadow: 0 0 0 2px rgba(46, 194, 106, .16);
  vertical-align: 1px;
}

.user-box { display: flex; align-items: center; gap: 10px; flex: none; }
.user-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px 4px 4px;
  background: var(--surface-3);
  border: 1px solid #e8eaee;
  border-radius: 20px;
}
.avatar {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  font-size: 12.5px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, #5b9bf5, #2f74e0);
}
.user-name { font-size: 13px; color: #444; }
.badge {
  padding: 0 7px;
  font-size: 11px;
  line-height: 18px;
  color: #2f74e0;
  background: var(--primary-soft);
  border: 1px solid #d6e6fb;
  border-radius: 10px;
}
.badge.admin { color: var(--warn); background: var(--warn-soft); border-color: #f7e3c3; }

/* ---------- 布局 ---------- */
.layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 0;
  min-height: calc(100vh - 60px);
  align-items: start;
  background: var(--bg);
}
.layout.solo {
  grid-template-columns: minmax(0, 1fr);
  max-width: 1080px;
  margin: 0 auto;
  padding-bottom: 30px;
}

/* 左侧导航贯穿两行；三页内容都在右列 */
#appMain > .sidebar { grid-column: 1; grid-row: 1 / span 2; }
#appMain > #contentOverview,
#appMain > #contentDevices,
#appMain > #contentVenues,
#appMain > #contentUsers { grid-column: 2; grid-row: 1; }
#appMain > #poolArea { grid-column: 2; grid-row: 2; min-width: 0; }

/* 普通用户没有左侧菜单：内容占满整行 */
#appMain.no-sidebar { grid-template-columns: minmax(0, 1fr); }
#appMain.no-sidebar > #contentOverview,
#appMain.no-sidebar > #contentDevices,
#appMain.no-sidebar > #contentVenues,
#appMain.no-sidebar > #contentUsers,
#appMain.no-sidebar > #poolArea { grid-column: 1; }
.layout.solo > .content { grid-column: 1; grid-row: auto; }

/* ---------- 侧栏（深灰菜单） ---------- */
.sidebar {
  position: sticky;
  top: 60px;
  height: calc(100vh - 60px);
  overflow: auto;
  background: var(--sidebar);
  display: flex;
  flex-direction: column;
}
.panel { padding: 0; background: transparent; border: none; box-shadow: none; }

/* 侧栏底部账号区（管理员 / 普通用户）：账号卡片 + 退出按钮 */
.sidebar-foot {
  margin-top: auto;
  padding: 12px 14px 14px;
  border-top: 1px solid rgba(255, 255, 255, .08);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
/* [hidden] 优先于 display:flex，否则隐藏后仍占位 */
.sidebar-foot[hidden],
.super-foot[hidden] { display: none; }

/* 账号卡片（侧栏底部）：左头像（跨两行）+ 右昵称 + 角色徽标 */
.sidebar-foot .user-chip {
  width: 100%;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  align-items: center;
  column-gap: 8px;
  row-gap: 5px;
  padding: 8px 10px 8px 8px;
  border-radius: 12px;
  background: rgba(255, 255, 255, .07);
  border-color: rgba(255, 255, 255, .14);
}
.sidebar-foot .avatar { width: 28px; height: 28px; grid-column: 1; grid-row: 1 / span 2; }
/* 昵称完整显示：不省略，放不下时自然换行 */
.sidebar-foot .user-name {
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
  font-size: 12px;
  line-height: 1.35;
  color: #e7ebf2;
  white-space: normal;
  overflow-wrap: anywhere;
  text-align: left;
}
/* 角色徽标在第二行，宽度按内容，与昵称左对齐 */
.sidebar-foot .badge {
  grid-column: 2;
  grid-row: 2;
  justify-self: start;
  white-space: nowrap;
  font-size: 10.5px;
  line-height: 16px;
  padding: 0 6px;
  border-color: rgba(255, 255, 255, .18);
}
.sidebar-foot .badge.admin { border-color: rgba(247, 227, 195, .4); }
.sidebar-foot #logoutBtn {
  width: 100%;
  color: #c8cfd9;
  border-color: rgba(255, 255, 255, .22);
  background: transparent;
}
.sidebar-foot #logoutBtn:hover { color: #fff; background: rgba(255, 255, 255, .08); border-color: rgba(255, 255, 255, .3); }

/* 超管：页面底部页脚账号区（与内容同宽，账号与退出靠左） */
#superMain.layout {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  min-height: calc(100vh - 60px);
}
.super-foot {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 16px 20px 24px;
  border-top: 1px solid var(--line);
}
.super-foot .user-chip { background: var(--surface-3); }

.side-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--sidebar-line);
}
.side-head h2 {
  margin: 0;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1.2px;
  color: #9aa4b2;
}
.side-count {
  padding: 0 7px;
  font-size: 11px;
  line-height: 17px;
  color: #d5dae2;
  background: #3a3f48;
  border-radius: 9px;
}
.side-head .btn.small {
  margin-left: auto;
  padding: 3px 9px;
  font-size: 12px;
  color: #d5dae2;
  background: #3a3f48;
  border: 1px solid #464c56;
}
.side-head .btn.small:hover { color: #fff; background: #47505c; border-color: #515a66; }

.venue-list { list-style: none; margin: 0; padding: 6px 0; display: grid; gap: 1px; }
.venue-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 9px 16px;
  font-size: 14px;
  color: #d5dae2;
  text-align: left;
  background: transparent;
  border: none;
  border-left: 3px solid transparent;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.venue-item > span:first-child { flex: 1; min-width: 0; }
.venue-item:hover { background: var(--sidebar-hover); color: #fff; }
.venue-item.active { background: var(--sidebar-active); color: #fff; border-left-color: var(--primary); }
.venue-item .name {
  display: block;
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.venue-item .code {
  display: block;
  margin-top: 2px;
  font-size: 11.5px;
  color: #8b94a3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sidebar .tag-mini {
  color: #cbd5e1;
  background: #3a3f48;
  border-color: #464c56;
}

/* ---------- 内容区 ---------- */
.content { padding: 16px 20px 26px; min-width: 0; }
.group { display: grid; gap: 12px; min-width: 0; }

.layout > *,
.content > *,
.resource-stack > * { min-width: 0; }

.page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.page-head h2 { margin: 0; font-size: 20px; font-weight: 600; color: var(--text); }
.page-head p { margin: 4px 0 0; font-size: 13px; color: var(--faint); }
.head-actions { display: flex; flex-wrap: wrap; gap: 8px; }

.text-ok { color: var(--ok); }

.perm-codes { margin-left: 6px; font-size: 12px; color: var(--faint); }

/* ---------- 卡片 ---------- */
.card {
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}
.card-head h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}
.card-head h3::before {
  content: "";
  width: 3px;
  height: 14px;
  border-radius: 2px;
  background: var(--primary);
}
.card-sub { margin: -6px 0 12px; font-size: 12.5px; color: var(--faint); }
.count-badge {
  min-width: 20px;
  padding: 0 7px;
  font-size: 12px;
  line-height: 18px;
  text-align: center;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 10px;
}

/* ---------- 设备页的场地选择条 ---------- */
.venue-picker {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}
.picker-label { font-size: 13px; color: var(--muted); }
.picker-select {
  min-width: 220px;
  max-width: 360px;
  padding: 6px 10px;
  font-size: 13.5px;
  color: var(--text-body);
  background: #fff;
  border: 1px solid var(--line-input);
  border-radius: var(--radius-s);
  outline: none;
}
.picker-select:focus { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(69, 134, 235, .12); }
.picker-meta { font-size: 12.5px; color: var(--faint); }
.picker-stats { display: flex; flex-wrap: wrap; gap: 6px; margin-left: auto; }

/* ---------- 场地头部 ---------- */
.venue-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}
.venue-header h2 {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}
.venue-header .sub {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  margin: 9px 0 0;
  font-size: 12.5px;
  color: var(--faint);
}
.meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 1px 8px;
  font-size: 12px;
  color: #66707d;
  background: var(--surface-3);
  border: 1px solid #eceef1;
  border-radius: var(--radius-s);
}
.meta-chip b { color: var(--text-body); font-weight: 600; }
.venue-actions { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- 状态标签 ---------- */
.tag-mini {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 1px 8px;
  font-size: 11.5px;
  line-height: 18px;
  color: #66707d;
  background: #f2f4f7;
  border: 1px solid #e8eaee;
  border-radius: var(--radius-s);
  white-space: nowrap;
}
.tag-mini.on { color: var(--ok); background: var(--ok-soft); border-color: #cdebd8; }
.tag-mini.info { color: #2f74e0; background: var(--primary-soft); border-color: #d6e6fb; }
.tag-mini.warn { color: var(--warn); background: var(--warn-soft); border-color: #f7e3c3; }

.pill {
  padding: 1px 8px;
  font-size: 11.5px;
  line-height: 18px;
  color: var(--faint);
  background: #f2f4f7;
  border: 1px solid #e8eaee;
  border-radius: 10px;
  white-space: nowrap;
}
.pill.on { color: var(--ok); background: var(--ok-soft); border-color: #cdebd8; }

/* ---------- 设备 ---------- */
.dev-stats { display: flex; flex-wrap: wrap; gap: 6px; }
.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(248px, 1fr));
  gap: 12px;
}
.device-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .15s, box-shadow .15s;
}
.device-card:hover { border-color: #cfe0f8; box-shadow: 0 2px 10px rgba(69, 134, 235, .10); }
.device-card.offline { background: #fbfcfd; }
.dev-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.dev-name {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.dev-meta {
  margin: 0;
  display: grid;
  gap: 4px;
  padding: 9px 11px;
  background: var(--surface-2);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-s);
}
.dev-meta > div { display: flex; gap: 10px; font-size: 12.5px; min-width: 0; }
.dev-meta dt { flex: none; width: 38px; color: var(--faint); }
.dev-meta dd {
  margin: 0;
  color: var(--text-dim);
  word-break: break-all;
  font-variant-numeric: tabular-nums;
}
.dev-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-top: 8px;
  border-top: 1px dashed var(--line-soft);
}
.power-state { font-size: 12.5px; color: var(--faint); }
.power-state.on { color: var(--ok); }

.seg {
  display: inline-flex;
  border: 1px solid #e0e4ea;
  border-radius: var(--radius-s);
  overflow: hidden;
}
.seg .btn {
  padding: 4px 12px;
  font-size: 12.5px;
  border: none;
  border-radius: 0;
  background: #fff;
  color: #66707d;
}
.seg .btn:hover { background: #f7faff; color: var(--primary); }
.seg .btn.active-state.on-state { color: #fff; background: var(--ok); }
.seg .btn.active-state.on-state:hover { color: #fff; background: #23a03f; }
.seg .btn.active-state.off-state { color: #fff; background: #6b7788; }
.seg .btn.active-state.off-state:hover { color: #fff; background: #5b6675; }
.seg.disabled { border-color: #eceef1; }
.seg.disabled .btn,
.seg.disabled .btn:hover {
  color: #b0b8c2;
  background: #fafbfc;
  cursor: not-allowed;
}

.dev-extra { display: flex; justify-content: flex-end; margin-top: -4px; }
.dev-extra .btn {
  padding: 3px 10px;
  font-size: 12px;
  color: var(--faint);
  border-color: transparent;
  background: transparent;
}
.dev-extra .btn:hover { color: var(--danger); background: var(--danger-soft); border-color: #f6d5d2; }

/* ---------- 表格 ---------- */
.table-scroll { overflow-x: auto; margin: 0 -2px 2px; padding: 0 2px 2px; }
.perm-table { width: 100%; table-layout: fixed; border-collapse: collapse; font-size: 13.5px; }
/* 列宽由各表 thead 按等分比例声明，列头间距一致 */
.perm-table th,
.perm-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--line-soft); overflow-wrap: break-word; }
.perm-table thead th {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--muted);
  background: #f8f9fb;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.perm-table tbody tr:nth-child(even) { background: var(--surface-2); }
.perm-table tbody tr:hover { background: #f4f8ff; }
.perm-table tbody tr:last-child td { border-bottom: none; }
.perm-table th:last-child,
.perm-table td:last-child { text-align: center; }
/* 表头与内容统一居中 */
.perm-table th,
.perm-table td { text-align: center; }
/* 所有表格第一列（场地/账号/编号等文字列）左对齐，其余列居中 */
.perm-table th:first-child,
.perm-table td:first-child { text-align: left; }
.perm-table td strong { color: var(--text); font-weight: 600; }
.row-actions { display: inline-flex; gap: 6px; flex-wrap: wrap; justify-content: center; }

/* ---------- 设备池 ---------- */
.pool-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 10px;
}
.pool-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  background: var(--surface-2);
  border: 1px solid #eceef1;
  border-radius: var(--radius-s);
  font-size: 13px;
}
.pool-list li:hover { border-color: #d7e4f8; background: #f7fbff; }
.pool-name { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; min-width: 0; }
.pool-name b { color: var(--text); font-weight: 600; }

/* ---------- 空态 / 提示 ---------- */
.empty {
  margin: 4px 0;
  padding: 20px 16px;
  text-align: center;
  font-size: 13px;
  color: var(--faint);
  background: var(--surface-2);
  border: 1px dashed #e0e4ea;
  border-radius: var(--radius);
}

/* ---------- 统计卡（超管） ---------- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.stat {
  position: relative;
  padding: 16px 18px 15px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.stat:hover { transform: translateY(-1px); box-shadow: var(--shadow-2); border-color: #cfe0f8; }
.stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 15px;
  bottom: 15px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--primary);
}
.stat-num {
  display: block;
  font-size: 26px;
  font-weight: 600;
  line-height: 1.1;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.stat-label { display: block; margin-top: 4px; font-size: 12.5px; color: var(--faint); }

/* ---------- 弹窗 ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 60px 20px;
  overflow: auto;
  background: rgba(20, 30, 45, .35);
}
.modal-card {
  width: min(560px, 100%);
  padding: 20px 22px 18px;
  background: var(--surface);
  border-radius: 6px;
  box-shadow: var(--shadow-3);
  animation: popIn .16s ease;
}
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 12px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
}
.modal-head h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}
.modal-head h3::before {
  content: "";
  width: 3px;
  height: 15px;
  border-radius: 2px;
  background: var(--primary);
}
.icon-btn {
  width: 28px;
  height: 28px;
  padding: 0;
  font-size: 18px;
  line-height: 1;
  color: var(--faint);
  background: transparent;
  border: none;
  border-radius: var(--radius-s);
  cursor: pointer;
}
.icon-btn:hover { color: var(--text-body); background: var(--surface-3); }

/* ---------- 提示条 ---------- */
.toast {
  position: fixed;
  top: 72px;
  left: 50%;
  z-index: 50;
  transform: translateX(-50%);
  max-width: min(600px, 92vw);
  padding: 10px 16px;
  font-size: 13.5px;
  color: var(--text-body);
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius-s);
  box-shadow: var(--shadow-2);
  animation: toastIn .2s ease;
}
.toast.ok { border-left-color: var(--ok); }
.toast.err { border-left-color: var(--danger); }

/* ---------- 登录页 ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(135deg, #eef4fb 0%, #e2ebf8 100%);
}
.login-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 400px;
  width: min(920px, 100%);
  background: var(--surface);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 18px 50px rgba(20, 50, 90, .14);
}
.login-hero {
  padding: 46px 38px;
  color: #fff;
  background: linear-gradient(160deg, #0d57b7 0%, #4687ec 100%);
}
.login-hero .logo-mark {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .18);
  box-shadow: none;
}
.login-hero .logo-mark svg { width: 24px; height: 24px; }
.login-hero h1 {
  margin: 20px 0 8px;
  font-size: 26px;
  font-weight: 600;
  letter-spacing: 1px;
}
.hero-sub {
  margin: 0 0 22px;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(255, 255, 255, .84);
}
.hero-feats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, .92);
}
.hero-feats li { display: flex; gap: 9px; align-items: flex-start; }
.hero-feats li::before {
  content: "";
  flex: none;
  width: 5px;
  height: 5px;
  margin-top: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .8);
}

.login-card { padding: 40px 36px 28px; }
.login-card h1 { margin: 0 0 6px; font-size: 22px; font-weight: 600; color: var(--text); }
.login-card > .muted { margin: 0 0 22px; font-size: 12.5px; }
.login-card .field { margin-bottom: 16px; }

.demo-accounts { margin-top: 20px; }
.demo-accounts summary {
  font-size: 12.5px;
  color: var(--faint);
  cursor: pointer;
  outline: none;
}
.demo-accounts summary:hover { color: var(--primary); }
.demo-accounts > .muted { display: block; margin: 8px 0 6px; font-size: 12px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 4px 12px;
  font-size: 12.5px;
  color: var(--text-dim);
  background: var(--surface-3);
  border: 1px solid var(--line);
  border-radius: 20px;
  cursor: pointer;
  transition: color .15s, border-color .15s, background .15s;
}
.chip:hover { color: var(--primary); border-color: #bcd6f8; background: #f2f8ff; }

.empty-actions { display: flex; justify-content: center; padding: 0 0 14px; }

/* 绑定设备弹窗里的单选列 */
.pick-cell { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; }

/* ---------- 动画 ---------- */
@keyframes popIn {
  from { opacity: 0; transform: translateY(-6px) scale(.985); }
  to { opacity: 1; transform: none; }
}
@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, -8px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .login-panel { grid-template-columns: minmax(0, 1fr); }
  .login-hero { display: none; }
  .login-card { padding: 34px 26px 26px; }
}

@media (max-width: 860px) {
  .topbar {
    flex-wrap: wrap;
    height: auto;
    padding: 8px 12px;
    row-gap: 4px;
    column-gap: 10px;
  }
  .brand { font-size: 15.5px; }
  .brand .tag { display: none; }
  .user-box .user-name { display: none; }
  .user-chip { padding: 3px 8px 3px 3px; }
  .sidebar-foot { flex-direction: row; align-items: center; margin-top: 0; padding: 10px 12px; }
  .sidebar-foot .user-chip { flex: 1; min-width: 0; display: flex; flex-wrap: nowrap; row-gap: 0; }
  .sidebar-foot .badge { margin-left: 0; }
  .sidebar-foot #logoutBtn { width: auto; }
  .super-foot { padding: 12px 12px 16px; }
  .super-foot .user-chip { padding: 3px 8px 3px 3px; }

  .layout { grid-template-columns: minmax(0, 1fr); min-height: 0; }
  #appMain > .sidebar,
  #appMain > #contentOverview,
  #appMain > #contentDevices,
  #appMain > #contentVenues,
  #appMain > #contentUsers,
  #appMain > #poolArea { grid-column: 1; grid-row: auto; }

  .sidebar { position: static; height: auto; }
  .page-nav {
    display: flex;
    overflow-x: auto;
    padding: 0;
    border-bottom: none;
    scrollbar-width: none;
  }
  .page-nav::-webkit-scrollbar { display: none; }
  .page-tab {
    flex: none;
    height: 42px;
    padding: 0 12px;
    white-space: nowrap;
    text-align: center;
    font-size: 13px;
    border-left: none;
    border-bottom: 3px solid transparent;
  }
  .page-tab.active {
    border-left-color: transparent;
    border-bottom-color: var(--primary);
  }
  .venue-list { display: flex; overflow-x: auto; padding: 8px; gap: 8px; }
  .venue-list li { flex: none; }
  .venue-item {
    min-width: 150px;
    border-left: none;
    border-bottom: 3px solid transparent;
    border-radius: var(--radius-s);
    background: #34373f;
  }
  .venue-item.active { border-bottom-color: var(--primary); background: #3c3f48; }

  .content { padding: 12px; }
  .card { padding: 13px 14px; }
  .venue-picker { padding: 10px 12px; }
  .picker-select { min-width: 0; flex: 1 1 160px; max-width: none; }
  .picker-stats { margin-left: 0; }
  .venue-actions { gap: 6px; }
  .device-grid { grid-template-columns: minmax(0, 1fr); }
  .pool-list { grid-template-columns: minmax(0, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .modal { padding: 24px 12px; }
  .perm-table { min-width: 640px; }
  .stat-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat { min-width: 0; }
}