/* ============================================================
   CCIoT 科技蓝主题（设计文档 7.1 色板）
   ============================================================ */
:root {
  --primary: #0066FF;           /* 主色：科技蓝 */
  --primary-light: #3385FF;     /* 浅蓝：悬停/高亮 */
  --primary-dark: #0047B3;      /* 深蓝：强调/标题 */
  --accent: #00D4FF;            /* 强调色：青色荧光 */
  --bg-dark: #0A1929;           /* 深色背景 */
  --bg-card: #0F2744;           /* 卡片背景 */
  --bg-panel: #132F4C;          /* 面板背景 */
  --text-primary: #E8F4FD;      /* 主文字：近白 */
  --text-secondary: #8BB8D8;    /* 次要文字 */
  --border: #1E4976;            /* 边框 */
  --success: #00E676;           /* 在线/有效 */
  --warning: #FFB300;           /* 警告 */
  --danger: #FF5252;            /* 离线/无效 */
  --gradient-blue: linear-gradient(135deg, #0066FF 0%, #00D4FF 100%);
}

/* ---- 全局 ---- */
* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-dark);
  color: var(--text-primary);
  font-family: 'HarmonyOS Sans', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  font-size: 14px;
  min-height: 100vh;
}

/* Element Plus 暗色主题映射 */
html.dark {
  --el-color-primary: var(--primary);
  --el-color-primary-light-3: var(--primary-light);
  --el-color-primary-light-5: #66a3ff;
  --el-color-primary-light-7: #99c2ff;
  --el-color-primary-light-8: #b3d1ff;
  --el-color-primary-light-9: #cce0ff;
  --el-color-primary-dark-2: var(--primary-dark);
  --el-bg-color: var(--bg-dark);
  --el-bg-color-overlay: var(--bg-card);
  --el-fill-color-blank: var(--bg-card);
  --el-fill-color-light: var(--bg-panel);
  --el-border-color: var(--border);
  --el-border-color-light: var(--border);
  --el-border-color-lighter: var(--border);
  --el-text-color-primary: var(--text-primary);
  --el-text-color-regular: var(--text-primary);
  --el-text-color-secondary: var(--text-secondary);
  --el-text-color-placeholder: #5a7d9e;
  --el-mask-color: rgba(4, 12, 22, 0.8);
}

/* ---- 顶部导航 ---- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: rgba(15, 39, 68, 0.85);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar .brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 1px;
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.topbar .brand .logo {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--gradient-blue);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  -webkit-text-fill-color: #fff;
}

.stats-bar {
  display: flex;
  gap: 28px;
  align-items: center;
}

.stats-bar .stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.3;
}

.stats-bar .stat .num {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.stats-bar .stat .label {
  font-size: 12px;
  color: var(--text-secondary);
}

/* ---- 主体容器 ---- */
.page-container {
  max-width: 1600px;
  margin: 0 auto;
  padding: 20px 24px 48px;
}

/* ---- 设备卡片网格（响应式，整体居中：单台也居中） ---- */
.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, 460px); /* 加宽：指标名+数值+单位同行 */
  gap: 16px;
  justify-content: center; /* 面板在容器中水平居中 */
}

/* ---- 卡片 ---- */
.device-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
}

.device-card:hover {
  border-color: var(--primary-light);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 102, 255, 0.15);
}

.device-card .card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.device-card .card-head .name {
  font-size: 16px;
  font-weight: 600;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.device-card .card-head .push-time {
  font-size: 12px;
  color: var(--text-secondary);
}

/* ---- 状态灯 ---- */
.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot.online {
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
  animation: breathe 2s ease-in-out infinite;
}

.status-dot.warning { background: var(--warning); box-shadow: 0 0 8px var(--warning); }
.status-dot.offline { background: var(--danger); box-shadow: 0 0 8px var(--danger); }
.status-dot.unknown { background: var(--text-secondary); }

@keyframes breathe {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

/* ---- 通道分组 ---- */
.channel-group { margin-bottom: 12px; }

.channel-group .group-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.channel-group .group-title::before {
  content: '';
  width: 3px;
  height: 14px;
  border-radius: 2px;
}

.channel-group.hydro .group-title::before { background: var(--primary); }
.channel-group.meteo .group-title::before { background: var(--accent); }
.channel-group.status .group-title::before { background: var(--warning); }

/* ---- 指标行：名称 + 数值 + 单位同行不换行（white-space 收口） ---- */
.metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 10px;
}

.metric-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 6px;
  background: rgba(19, 47, 76, 0.5);
  border: 1px solid rgba(30, 73, 118, 0.45);
  white-space: nowrap; /* 中英文指标不允许换行 */
}

.metric-item .m-name {
  color: var(--text-secondary);
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.metric-item .m-value {
  display: inline-flex;
  align-items: baseline;
  gap: 3px;
  color: var(--accent);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.metric-item .m-value .m-num { font-size: 15px; line-height: 1.2; }
.metric-item .m-value .unit {
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 400;
}
.metric-item .m-value.invalid {
  color: var(--text-secondary);
  text-decoration: line-through;
}

/* ---- 数据异常标记 ---- */
.badge-invalid {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 11px;
  background: rgba(255, 82, 82, 0.15);
  color: var(--danger);
  border: 1px solid rgba(255, 82, 82, 0.4);
}

/* ---- 空状态 ---- */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-secondary);
}

.empty-state .icon { font-size: 56px; margin-bottom: 16px; }

/* ---- 登录页 ---- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(0, 102, 255, 0.12), transparent 40%),
    radial-gradient(ellipse at 80% 80%, rgba(0, 212, 255, 0.1), transparent 40%),
    var(--bg-dark);
}

.login-card {
  width: 400px;
  padding: 40px 36px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 12px 48px rgba(0, 60, 160, 0.25);
}

.login-card .title {
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.login-card .subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 13px;
  margin-bottom: 28px;
}

/* ---- 管理后台布局 ---- */
.admin-layout {
  display: flex;
  min-height: 100vh;
}

.admin-sider {
  width: 220px;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}

.admin-sider .menu { flex: 1; border-right: none !important; }

.admin-main {
  flex: 1;
  padding: 20px 24px;
  overflow-x: auto;
  min-width: 0;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

/* ---- 表格/面板通用 ---- */
.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
  align-items: center;
}

/* ---- JSON 快照展示 ---- */
.json-snapshot {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px;
  font-family: 'JetBrains Mono', Consolas, monospace;
  font-size: 12px;
  max-height: 260px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
  color: var(--text-secondary);
}

/* ---- 刷新失败横幅 ---- */
.refresh-banner {
  background: rgba(255, 179, 0, 0.12);
  border: 1px solid rgba(255, 179, 0, 0.45);
  color: var(--warning);
  padding: 8px 16px;
  border-radius: 8px;
  margin-bottom: 12px;
  font-size: 13px;
}

/* ---- 滚动条 ---- */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-dark); }

/* ---- 响应式 ---- */
@media (max-width: 768px) {
  .page-container { padding: 12px; }
  .stats-bar { display: none; }
  .admin-sider { width: 64px; }
  .metric-grid { grid-template-columns: 1fr; }
}

/* ---- 设备详情页：通信批次解析展示 ---- */
.push-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 2px 0;
  font-size: 12px;
}
.push-line .ch-name {
  color: var(--accent);
  font-weight: 600;
  min-width: 92px;
}
.data-pill {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  padding: 1px 8px;
  background: rgba(30, 73, 118, 0.35);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-secondary);
}
.data-pill b { color: var(--text-primary); font-weight: 600; }
.data-pill .unit { font-size: 11px; opacity: 0.7; }