/* 九湾潭数智林场综合管理平台 - 全站主题 v2 */
@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;500&family=JetBrains+Mono:wght@400;500;600&family=Inter:wght@400;500&display=swap');

:root {
  /* —— 背景 4 级 —— */
  --bg-0: #0A1A26;
  --bg-1: #0E2030;
  --bg-2: #112536;
  --bg-3: #16304A;

  /* —— 描边 2 级 —— */
  --line: #1B3247;
  --line-2: #25425E;

  /* —— 主色：林业绿（身份色） —— */
  --brand: #1F8E5A;
  --brand-2: #2BB673;
  --brand-3: #4FD295;

  /* —— 功能色：科技蓝 —— */
  --primary: #3D8BFF;
  --primary-2: #6BA8FF;
  --primary-d: #1A5FCC;

  /* —— 警示色 —— */
  --warn: #F08A3E;
  --warn-2: #FFB37A;
  --danger: #D94347;
  --danger-2: #FF8E91;
  --gold: #D9A441;

  /* 兼容旧变量名（部分页面 inline style 在用） */
  --green: var(--brand-2);
  --green-2: var(--brand-3);
  --orange: var(--warn);
  --red: var(--danger);

  /* —— 文字 4 级 —— */
  --text: #DDE7F0;
  --text-2: #A5B6C9;
  --text-3: #7A8DA3;
  --text-4: #54697F;

  /* —— 装饰 alpha —— */
  --glow-blue: rgba(61,139,255,0.5);
  --glow-green: rgba(43,182,115,0.4);
  --tint-blue: rgba(61,139,255,0.08);
  --tint-green: rgba(43,182,115,0.08);
  --tint-warn: rgba(240,138,62,0.10);
  --tint-danger: rgba(217,67,71,0.10);

  --font-num: 'JetBrains Mono', 'Oswald', 'SF Mono', ui-monospace, monospace;
  --font-zh: 'PingFang SC', 'Source Han Sans CN', 'Microsoft YaHei', sans-serif;
  --font-en: 'Inter', -apple-system, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-0);
  color: var(--text);
  font-family: var(--font-zh), var(--font-en);
  font-size: 15px;
  line-height: 1.62;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

/* 顶部 header */
.app-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 12px 24px;
  background: linear-gradient(180deg, #0E2238 0%, #0B1B2B 100%);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(61, 139, 255, 0.18);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 36px; height: 36px;
  border-radius: 3px;
  background: var(--brand);
  border: 1px solid var(--brand-2);
  color: #fff;
  display: grid; place-items: center;
  font-size: 18px; font-weight: 500;
  letter-spacing: 1px;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text strong { font-size: 16px; letter-spacing: 0.5px; }
.brand-text span { font-size: 11.5px; color: var(--text-3); }

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  justify-content: center;
}
.top-nav a {
  padding: 7px 13px;
  border-radius: 3px;
  font-size: 14px;
  color: var(--text-2);
  white-space: nowrap;
  transition: all 0.15s;
}
.top-nav a:hover { background: var(--bg-2); color: var(--text); }
.top-nav a.is-active {
  background: transparent;
  color: var(--primary-2);
  box-shadow: inset 0 -2px 0 var(--primary);
  border-radius: 0;
}

.header-right { display: flex; align-items: center; gap: 10px; }
.risk-pill, .online-pill, .time-pill {
  font-size: 12.5px;
  padding: 5px 10px;
  border-radius: 2px;
  border: 1px solid var(--line-2);
  color: var(--text-2);
  background: rgba(255,255,255,0.02);
}
.risk-orange { color: #FFB07A; border-color: #6B3A23; background: rgba(255, 112, 67, 0.12); }
.risk-red { color: #FF8E91; border-color: #6B2A2D; background: rgba(229, 72, 77, 0.12); }
.risk-green { color: var(--green-2); border-color: #214d3a; background: rgba(43, 182, 115, 0.12); }
.online-pill { color: var(--green-2); }
.time-pill { font-variant-numeric: tabular-nums; color: var(--text-3); }

/* 主体 */
.app-main {
  padding: 18px 24px 28px;
  max-width: 1920px;
  margin: 0 auto;
}
.page-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 4px 0 16px;
}
.page-title h1 { font-size: 24px; font-weight: 500; margin: 0; letter-spacing: 1px; }
.page-title .eyebrow {
  display: block;
  font-size: 11.5px;
  letter-spacing: 2px;
  color: var(--text-3);
  text-transform: uppercase;
  margin-bottom: 4px;
}
.page-title .meta { color: var(--text-3); font-size: 13.5px; }

/* 卡片 / 面板 */
.card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 14px 16px;
  position: relative;
}
.card::before, .card::after {
  content: '';
  position: absolute;
  width: 12px; height: 12px;
  border: 1px solid var(--primary);
  opacity: 0.55;
  transition: opacity 0.15s;
  pointer-events: none;
}
.card::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.card::after { bottom: -1px; right: -1px; border-left: none; border-top: none; }
.card:hover::before, .card:hover::after { opacity: 1; }
.card.is-warn::before, .card.is-warn::after { border-color: var(--warn); }
.card.is-danger::before, .card.is-danger::after { border-color: var(--danger); }
.card.is-brand::before, .card.is-brand::after { border-color: var(--brand-2); }

.card-head {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: -14px -16px 12px;
  padding: 10px 16px 10px 22px;
  border-bottom: 1px solid var(--line);
}
.card-head::before {
  content: '';
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 3px;
  background: var(--primary);
}
.card.is-brand .card-head::before { background: var(--brand-2); }
.card.is-warn .card-head::before { background: var(--warn); }
.card.is-danger .card-head::before { background: var(--danger); }
.card-head h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 1px;
  color: var(--text);
  line-height: 1.35;
}
.card-head .eyebrow {
  font-size: 11.5px;
  color: var(--text-3);
  letter-spacing: 2px;
  text-transform: uppercase;
  font-family: var(--font-num);
}
.card-head .actions { display: flex; gap: 6px; }

/* KPI */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}
.kpi {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 14px 14px 12px 16px;
  position: relative;
  overflow: hidden;
}
.kpi::before, .kpi::after {
  content: '';
  position: absolute;
  pointer-events: none;
}
.kpi::before {
  /* 左下短色条（替代原全宽渐变） */
  left: 0; bottom: 0;
  width: 36px; height: 2px;
  background: var(--primary);
  opacity: 0.95;
}
.kpi::after {
  /* 右上小角点装饰 */
  top: -1px; right: -1px;
  width: 10px; height: 10px;
  border: 1px solid var(--primary);
  border-left: none; border-bottom: none;
  opacity: 0.5;
}
.kpi.green::before { background: var(--brand-2); }
.kpi.green::after { border-color: var(--brand-2); }
.kpi.warn::before { background: var(--warn); }
.kpi.warn::after { border-color: var(--warn); }
.kpi.danger::before { background: var(--danger); }
.kpi.danger::after { border-color: var(--danger); }

.kpi-label {
  font-size: 12.5px;
  color: var(--text-3);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-family: var(--font-num);
}
.kpi-value {
  display: flex; align-items: baseline; gap: 4px;
  font-family: var(--font-num);
  font-size: 34px;
  font-weight: 500;
  letter-spacing: -0.5px;
  line-height: 1.1;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  margin: 8px 0 4px;
}
.kpi-value .unit {
  font-family: var(--font-zh);
  font-size: 13px;
  font-weight: 400;
  color: var(--text-3);
  letter-spacing: 0;
  margin-left: 2px;
}
.kpi-sub {
  font-size: 12.5px;
  color: var(--text-3);
  letter-spacing: 0.3px;
}

/* Pill / status */
.pill {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 2px;
  font-size: 12.5px;
  font-weight: 400;
  letter-spacing: 0.3px;
  border: 1px solid var(--line-2);
  background: rgba(255,255,255,0.03);
  color: var(--text-2);
}
.pill-info { color: var(--primary-2); border-color: rgba(61,139,255,0.4); background: var(--tint-blue); }
.pill-success, .pill-online { color: var(--brand-3); border-color: rgba(43,182,115,0.4); background: var(--tint-green); }
.pill-warn, .pill-mid { color: var(--warn-2); border-color: rgba(240,138,62,0.4); background: var(--tint-warn); }
.pill-danger, .pill-high, .pill-offline { color: var(--danger-2); border-color: rgba(217,67,71,0.4); background: var(--tint-danger); }
.pill-low { color: var(--text-3); }
.pill-ai {
  color: var(--primary-2);
  border-color: rgba(61,139,255,0.4);
  background: var(--tint-blue);
  font-family: var(--font-num);
  letter-spacing: 1px;
}
.pill-ai::before { content: 'AI · '; opacity: 0.85; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 15px;
  border-radius: 3px;
  border: 1px solid var(--line-2);
  background: var(--bg-3);
  color: var(--text-2);
  font-size: 14px;
  letter-spacing: 0.3px;
  cursor: pointer;
  transition: all 0.15s;
}
.btn:hover { color: var(--text); border-color: var(--primary); }
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: inset 0 -2px 0 var(--primary-d);
}
.btn-primary:hover { background: var(--primary-2); color: #fff; }
.btn-brand {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
  box-shadow: inset 0 -2px 0 #155F3D;
}
.btn-brand:hover { background: var(--brand-2); }
.btn-danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
  box-shadow: inset 0 -2px 0 #9B2D31;
}
.btn-ghost { background: transparent; }
.btn-sm { padding: 4px 11px; font-size: 13px; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

/* 表格 */
table.tbl {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 14px;
  line-height: 1.55;
}
table.tbl th {
  font-weight: 500;
  font-size: 12.5px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-3);
  background: rgba(255,255,255,0.025);
  font-family: var(--font-num), var(--font-zh);
  padding: 11px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line-2);
  position: sticky;
  top: 0;
}
table.tbl td {
  padding: 11px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
table.tbl tbody tr { transition: background 0.12s; }
table.tbl tbody tr:hover { background: var(--tint-blue); }
table.tbl tbody tr.is-selected {
  background: rgba(61,139,255,0.16);
  box-shadow: inset 3px 0 0 var(--primary);
}

/* 列表 */
.list { display: flex; flex-direction: column; gap: 8px; }
.list-item {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(255,255,255,0.02);
  cursor: pointer;
  transition: all 0.15s;
}
.list-item:hover { border-color: var(--primary); background: rgba(61,139,255,0.06); }
.list-item .row { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.list-item .row + .row { margin-top: 4px; }
.list-item .title { font-weight: 500; }
.list-item .sub { font-size: 13px; color: var(--text-3); }

/* 分隔条 */
.divider { height: 1px; background: var(--line); margin: 10px 0; }

/* Footer ticker */
.app-footer {
  border-top: 1px solid var(--line);
  background: #0A1626;
  padding: 8px 24px 10px;
  margin-top: 16px;
}
.app-footer .ticker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 12px;
  color: var(--text-3);
}
.app-footer .ticker .dot {
  width: 4px; height: 4px;
  background: var(--line-2);
  border-radius: 999px;
  display: inline-block;
}
.app-footer .copyright {
  margin-top: 6px;
  font-size: 11.5px;
  color: var(--text-4);
}

/* Layout helpers */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px; }
.row-flex { display: flex; gap: 12px; flex-wrap: wrap; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.spacer { flex: 1; }

/* 大屏布局：左中右三栏（综合态势/防火/资源总览图） */
.cockpit {
  display: grid;
  grid-template-columns: clamp(260px, 16.5vw, 320px) minmax(420px, 1fr) clamp(260px, 16.5vw, 320px);
  gap: 12px;
  min-height: calc(100vh - 200px);
  min-height: calc(100dvh - 200px);
  align-items: stretch;
}
.cockpit .col-center { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.cockpit .col-side { display: flex; flex-direction: column; gap: 12px; min-width: 0; }

/* 工作台：左菜单 + 主区 */
.workbench {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 12px;
  min-height: calc(100vh - 200px);
}

/* 地图相关 */
.map-wrap { position: relative; aspect-ratio: 16 / 10; min-height: 380px; }
.map-svg { width: 100%; height: 100%; display: block; }
.map-svg .terrain { fill: url(#terrainGrad); stroke: #2BB673; stroke-opacity: 0.4; stroke-width: 1.5; }
.map-svg .public-forest { fill: rgba(43,182,115,0.22); stroke: rgba(43,182,115,0.55); stroke-width: 1; }
.map-svg .commercial-forest { fill: rgba(228,184,82,0.18); stroke: rgba(228,184,82,0.55); stroke-width: 1; }
.map-svg .carbon-area { fill: rgba(91,163,255,0.18); stroke: rgba(91,163,255,0.6); stroke-dasharray: 4 4; }
.map-svg .improve-area { fill: rgba(228,184,82,0.12); stroke: rgba(228,184,82,0.5); stroke-dasharray: 6 3; }
.map-svg .water-body { fill: rgba(61,139,255,0.32); stroke: rgba(91,163,255,0.7); stroke-width: 1; }
.map-svg .trail { fill: none; stroke: var(--gold); stroke-width: 1.6; stroke-dasharray: 5 3; }
.map-svg .patrol-track { fill: none; stroke: var(--green-2); stroke-width: 2; stroke-linecap: round; }
.map-svg .ridge { fill: none; stroke: rgba(255,255,255,0.08); stroke-width: 1; }
.map-svg .device-pt { fill: var(--primary); stroke: #fff; stroke-width: 1; cursor: pointer; }
.map-svg .device-pt.offline { fill: var(--text-4); }
.map-svg .event-pt { fill: var(--orange); stroke: #fff; stroke-width: 1; cursor: pointer; }
.map-svg .event-pt.high { fill: var(--red); }
.map-svg .compartment { fill: rgba(255,255,255,0.02); stroke: rgba(255,255,255,0.18); stroke-width: 1; cursor: pointer; }
.map-svg .compartment:hover { fill: rgba(61,139,255,0.18); stroke: var(--primary); }
.map-svg .compartment.is-selected { fill: rgba(61,139,255,0.28); stroke: var(--primary-2); stroke-width: 2; }
.map-svg .label { fill: var(--text-2); font-size: 12.5px; pointer-events: none; }
.map-svg .label-lg { fill: var(--text); font-size: 14.5px; font-weight: 500; pointer-events: none; }
.map-svg .pulse { animation: pulse 1.6s ease-out infinite; transform-origin: center; transform-box: fill-box; }
@keyframes pulse {
  0% { transform: scale(1); opacity: 0.9; }
  100% { transform: scale(2.4); opacity: 0; }
}

.map-legend {
  position: absolute;
  bottom: 10px; left: 10px;
  background: rgba(11,27,43,0.85);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 8px 10px;
  font-size: 13px;
  color: var(--text-2);
  display: flex;
  flex-direction: column;
  gap: 4px;
  backdrop-filter: blur(4px);
}
.map-legend i {
  display: inline-block;
  width: 12px; height: 12px;
  margin-right: 6px;
  vertical-align: middle;
  border-radius: 2px;
}
.layer-panel {
  position: absolute;
  top: 10px; right: 10px;
  background: rgba(11,27,43,0.9);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 12px 14px;
  min-width: 210px;
  font-size: 14px;
  backdrop-filter: blur(4px);
}
.layer-panel h4 { margin: 0 0 8px; font-size: 13px; color: var(--text-3); letter-spacing: 1px; }
.layer-panel label {
  display: flex; align-items: center;
  padding: 5px 0;
  cursor: pointer;
  color: var(--text-2);
}
.layer-panel input { margin-right: 8px; accent-color: var(--primary); }

/* 视频宫格 */
.video-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 8px;
}
.video-tile {
  position: relative;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #0a1422 0%, #1a2c43 100%);
  background-size: cover;
  background-position: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  display: grid;
  place-items: center;
  color: var(--text-3);
  font-size: 12px;
  cursor: pointer;
  transition: transform 0.2s, border-color 0.2s;
}
.video-tile:hover { transform: translateY(-2px); border-color: var(--primary); }
.video-tile::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(11,27,43,0.15) 0%, rgba(11,27,43,0.78) 100%);
  pointer-events: none;
}
.video-tile.no-photo::before {
  background: repeating-linear-gradient(45deg, #11243A 0 8px, #0E2030 8px 16px);
  opacity: 1;
}
.video-tile .scan {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 0%, transparent 48%, rgba(91,163,255,0.45) 50%, transparent 52%, transparent 100%);
  background-size: 100% 200%;
  animation: scan 3s linear infinite;
  mix-blend-mode: screen;
  opacity: 0.35;
}
@keyframes scan {
  0% { background-position: 0 -100%; }
  100% { background-position: 0 100%; }
}
.video-tile .timecode {
  position: absolute; right: 6px; bottom: 6px;
  font-size: 10.5px;
  font-variant-numeric: tabular-nums;
  color: rgba(255,255,255,0.85);
  text-shadow: 0 1px 2px rgba(0,0,0,0.6);
}
.video-tile .bbox {
  position: absolute;
  border: 1.5px solid #FFB85C;
  border-radius: 2px;
  pointer-events: none;
}
.video-tile .bbox::after {
  content: attr(data-label);
  position: absolute;
  left: -1px; top: -18px;
  background: rgba(255,184,92,0.95);
  color: #1a1a1a;
  font-size: 10px;
  padding: 1px 5px;
  border-radius: 2px;
  white-space: nowrap;
  font-weight: 600;
}
.video-tile .bbox.green { border-color: #4FD295; }
.video-tile .bbox.green::after { background: rgba(79,210,149,0.95); color: #0B1B2B; }
.video-tile .bbox.red { border-color: #FF7B7E; }
.video-tile .bbox.red::after { background: rgba(255,123,126,0.95); color: #1a1a1a; }
.video-tile .badge {
  position: absolute; top: 6px; left: 6px;
  background: var(--danger);
  color: #fff;
  font-size: 10.5px;
  font-family: var(--font-num);
  letter-spacing: 1px;
  padding: 2px 6px 2px 14px;
  border-radius: 0;
}
.video-tile .badge::before {
  content: '';
  position: absolute;
  left: 6px; top: 50%;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: #fff;
  transform: translateY(-50%);
  animation: live-blink 0.9s ease-in-out infinite alternate;
}
@keyframes live-blink {
  from { opacity: 0.3; }
  to { opacity: 1; }
}
.video-tile .timecode {
  font-family: var(--font-num);
  letter-spacing: 1px;
}
.video-tile .timecode::before { content: '[REC] '; opacity: 0.7; }
.video-tile .label {
  position: absolute; bottom: 6px; left: 8px;
  font-size: 11.5px;
  color: var(--text);
  text-shadow: 0 1px 2px rgba(0,0,0,0.6);
}
.video-tile .ai {
  position: absolute; top: 6px; right: 6px;
  background: rgba(11,27,43,0.78);
  border: 1px solid rgba(61,139,255,0.6);
  color: var(--primary-2);
  font-family: var(--font-num);
  font-size: 10.5px;
  letter-spacing: 1px;
  padding: 1px 6px;
  border-radius: 0;
}
.video-tile .ai::before { content: 'AI · '; opacity: 0.85; }

/* 时间线 */
.timeline { position: relative; padding-left: 20px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 7px; top: 4px; bottom: 4px;
  width: 1px;
  background: var(--line-2);
}
.timeline .step {
  position: relative;
  padding: 4px 0 12px;
}
.timeline .step::before {
  content: '';
  position: absolute;
  left: -17px; top: 8px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--bg-0);
  border: 1px solid var(--line-2);
  box-sizing: border-box;
}
.timeline .step.done::before { background: var(--brand-2); border-color: var(--brand-2); }
.timeline .step.active::before {
  background: var(--primary);
  border-color: var(--primary);
  outline: 1px solid var(--primary);
  outline-offset: 2px;
}
.timeline .step .t {
  font-size: 11px;
  color: var(--text-3);
  font-family: var(--font-num);
  letter-spacing: 0.5px;
}
.timeline .step .n { font-weight: 500; letter-spacing: 0.5px; }
.timeline .step .d { font-size: 12.5px; color: var(--text-2); }

/* 轨迹列表 */
.bar-row { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font-size: 13.5px; }
.bar-row .bar { flex: 1; height: 6px; background: var(--bg-3); border-radius: 3px; overflow: hidden; }
.bar-row .bar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--primary), var(--primary-2)); }
.bar-row.green .bar > i { background: linear-gradient(90deg, var(--green), var(--green-2)); }
.bar-row.warn .bar > i { background: linear-gradient(90deg, var(--orange), #ffa07a); }
.bar-row .v { width: 60px; text-align: right; color: var(--text-2); font-variant-numeric: tabular-nums; }

/* 模态 */
.modal-mask {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  display: none;
  align-items: center; justify-content: center;
  z-index: 100;
  backdrop-filter: blur(2px);
}
.modal-mask.is-open { display: flex; }
.modal {
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: 4px;
  width: min(620px, 92vw);
  max-height: 80vh;
  overflow: auto;
  padding: 18px 22px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}
.modal-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 12px;
}
.modal-head h3 { margin: 0; font-size: 16px; }
.modal .close { cursor: pointer; color: var(--text-3); font-size: 18px; }

/* 选项卡 */
.tabs { display: flex; gap: 0; border-bottom: 1px solid var(--line); }
.tabs button {
  background: transparent;
  border: none;
  color: var(--text-3);
  padding: 8px 14px;
  font-size: 13px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tabs button.is-active { color: var(--primary-2); border-bottom-color: var(--primary); }

/* 简易图表 */
.spark { width: 100%; height: 36px; }
.chart { width: 100%; height: 200px; }
.chart-tall { width: 100%; height: 280px; }

/* 设备图标圆点 */
.dot-status {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}
.dot-status.online { background: var(--green); box-shadow: 0 0 6px var(--green); }
.dot-status.offline { background: var(--red); }
.dot-status.task { background: var(--primary); box-shadow: 0 0 6px var(--primary); }
.dot-status.idle { background: var(--gold); }
.dot-status.charge { background: var(--text-4); }

/* 移动端 */
@media (max-width: 1280px) {
  .kpi-grid { grid-template-columns: repeat(3, 1fr); }
  .cockpit { grid-template-columns: 1fr; }
  .cockpit .col-side { flex-direction: row; flex-wrap: wrap; }
  .cockpit .col-side > * { flex: 1; min-width: 280px; }
}
@media (max-width: 768px) {
  .app-header { grid-template-columns: 1fr auto; padding: 10px 14px; gap: 10px; }
  .top-nav { display: none; }
  .header-right .time-pill { display: none; }
  .app-main { padding: 14px 12px 24px; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .workbench { grid-template-columns: 1fr; }
  .cockpit .col-side { flex-direction: column; }
  .video-grid { grid-template-columns: 1fr; }
  .video-tile { aspect-ratio: 16 / 10; min-height: 190px; background-position: center; }
  .thumb { background-position: center; }
  .thumb-lg { aspect-ratio: 16 / 10; min-height: 180px; }
  .page-hero { min-height: 220px; padding: 22px 16px; }
  .page-hero::before { background-position: center top; }
  .page-title h1 { font-size: 18px; }
  .kpi-value { font-size: 20px; }
  table.tbl { font-size: 12px; }
  table.tbl th, table.tbl td { padding: 6px 6px; }
}
@media (max-width: 480px) {
  .top-nav { display: none; }
  .brand-text strong { font-size: 14px; }
  .brand-text span { display: none; }
}

/* mobile 弹出菜单（窄屏导航） */
.mobile-nav-toggle {
  display: none;
  background: var(--bg-3);
  border: 1px solid var(--line-2);
  color: var(--text);
  width: 36px; height: 36px;
  border-radius: 6px;
  font-size: 18px;
  cursor: pointer;
}
@media (max-width: 768px) {
  .mobile-nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .top-nav.is-open {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--bg-1);
    border-bottom: 1px solid var(--line);
    padding: 10px 14px;
    flex-direction: column;
    align-items: stretch;
  }
  .top-nav.is-open a { padding: 10px 12px; border-radius: 6px; }
}

/* 空白状态 */
.empty {
  padding: 32px;
  text-align: center;
  color: var(--text-3);
  font-size: 13px;
}

/* Page hero (顶部带背景图的标题块) */
.page-hero {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 14px;
  border: 1px solid var(--line);
  background: var(--bg-2);
  min-height: 120px;
  display: flex;
  align-items: flex-end;
  padding: 16px 22px;
}
.page-hero::before { filter: saturate(0.7) brightness(0.9); }
body[data-mode="cockpit"] .page-hero { display: none; }
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: var(--hero-img, none);
  background-size: cover;
  background-position: center;
  filter: saturate(0.85);
  opacity: 0.55;
}
.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11,27,43,0.92) 0%, rgba(11,27,43,0.7) 40%, rgba(11,27,43,0.35) 100%),
              linear-gradient(180deg, transparent 30%, rgba(11,27,43,0.85) 100%);
}
.page-hero > * { position: relative; z-index: 1; }
.page-hero .hero-text { flex: 1; }
.page-hero .hero-text .eyebrow { color: var(--primary-2); }
.page-hero .hero-text h1 {
  margin: 4px 0 6px;
  font-size: 24px;
  letter-spacing: 1px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}
.page-hero .hero-text .meta { color: var(--text-2); font-size: 13px; }
.page-hero .hero-actions { display: flex; gap: 8px; align-items: center; }
.page-hero .hero-badges { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 6px; }
.page-hero .hero-badges .pill { background: rgba(11,27,43,0.6); border-color: rgba(255,255,255,0.18); color: #E6EEF8; }

/* 缩略图（用于事件流 / AI 识别 / 设备详情） */
.thumb {
  width: 52px; height: 36px;
  border-radius: 4px;
  background-size: cover;
  background-position: center;
  border: 1px solid var(--line);
  flex-shrink: 0;
}
.thumb-lg { width: 100%; aspect-ratio: 16/9; border-radius: 6px; }
.thumb-sq { width: 64px; height: 64px; border-radius: 6px; }

/* AI 识别结果对比图 */
.ai-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.ai-compare > div {
  position: relative;
  aspect-ratio: 4/3;
  background-size: cover;
  background-position: center;
  border-radius: 6px;
  border: 1px solid var(--line);
  overflow: hidden;
}
.ai-compare > div::after {
  content: attr(data-label);
  position: absolute;
  bottom: 6px; left: 6px;
  font-size: 11px;
  color: #fff;
  background: rgba(11,27,43,0.85);
  padding: 2px 7px;
  border-radius: 3px;
}

/* 设备/物种 行内缩略图 */
.row-thumb { display: flex; align-items: center; gap: 8px; }

/* KPI icon (subtle) */
.kpi { padding-left: 56px; }
.kpi .kpi-icon {
  position: absolute;
  left: 14px; top: 50%;
  transform: translateY(-50%);
  width: 32px; height: 32px;
  border-radius: 8px;
  display: grid; place-items: center;
  background: rgba(61,139,255,0.12);
  border: 1px solid rgba(61,139,255,0.3);
  color: var(--primary-2);
}
.kpi.green .kpi-icon { background: rgba(43,182,115,0.12); border-color: rgba(43,182,115,0.3); color: var(--green-2); }
.kpi.warn .kpi-icon { background: rgba(255,112,67,0.12); border-color: rgba(255,112,67,0.3); color: #FFB07A; }
.kpi .kpi-icon svg { width: 16px; height: 16px; }
@media (max-width: 768px) {
  .kpi { padding-left: 14px; }
  .kpi .kpi-icon { display: none; }
}

/* 强调文本 */
.txt-hi { color: var(--primary-2); }
.txt-green { color: var(--green-2); }
.txt-warn { color: var(--orange); }
.txt-red { color: #FF8E91; }
.txt-mono { font-variant-numeric: tabular-nums; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.txt-small { font-size: 12px; color: var(--text-3); }

/* badges 顶部副标题 */
.badge-row { display: flex; gap: 6px; flex-wrap: wrap; }

/* === 双形态：cockpit (大屏) vs workbench (业务工作台) === */
body[data-mode="cockpit"] {
  font-size: 13px;
}
body[data-mode="cockpit"] .app-main {
  padding: 12px 18px 20px;
  max-width: none;
}
body[data-mode="cockpit"] .card,
body[data-mode="cockpit"] .kpi {
  border-radius: 2px;
}
body[data-mode="cockpit"] .kpi-value { font-size: 32px; }
body[data-mode="cockpit"] .kpi-grid { gap: 8px; }
body[data-mode="cockpit"] .page-title h1 { font-size: 24px; letter-spacing: 1.5px; }
body[data-mode="cockpit"] .grid-2,
body[data-mode="cockpit"] .grid-3,
body[data-mode="cockpit"] .grid-4 { gap: 8px; }

body[data-mode="workbench"] .app-main {
  max-width: 1440px;
}
body[data-mode="workbench"] .kpi-value { font-size: 26px; }

/* 实时告警卡呼吸边框（限定 active 类才生效） */
.card.is-alert-active { animation: alert-breath 1.6s ease-in-out infinite alternate; }
@keyframes alert-breath {
  from { border-color: rgba(217,67,71,0.4); }
  to { border-color: rgba(217,67,71,0.95); }
}

/* 数字列辅助 */
.num, .txt-num { font-family: var(--font-num); font-variant-numeric: tabular-nums; letter-spacing: 0.3px; }
table.tbl td.num { text-align: right; }

/* 工程斜线纹（占位用） */
.diag-pattern {
  background: repeating-linear-gradient(45deg, #11243A 0 8px, #0E2030 8px 16px);
}

/* 滚动条 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #34527a; }
::-webkit-scrollbar-track { background: transparent; }