:root {
  --bg: #0f1620;
  --panel: #1a2432;
  --panel2: #202c3d;
  --border: #2e3d52;
  --text: #dce6f2;
  --muted: #8ba0b8;
  --accent: #3b9cff;
  --green: #2ecc71;
  --red: #e74c3c;
  --yellow: #f1c40f;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
  min-height: 100vh;
}

/* ===== 顶栏 ===== */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; background: var(--panel); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 50;
}
.brand { font-size: 18px; font-weight: 600; }
.status-bar { display: flex; align-items: center; gap: 12px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: 20px;
  background: var(--panel2); border: 1px solid var(--border); font-size: 13px;
}
.chip .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.chip.ok .dot { background: var(--green); }
.chip.err .dot { background: var(--red); }
.refresh-toggle { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 6px; }

main { padding: 16px 20px 40px; }

/* ===== 顶部 Tab ===== */
.tabs { display: flex; gap: 4px; margin-bottom: 16px; border-bottom: 1px solid var(--border); }
.tab {
  padding: 8px 16px; background: none; border: none; color: var(--muted);
  font-size: 14px; cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

/* ===== 统计卡片 ===== */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 16px; }
.stat-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 18px; text-align: center;
}
.stat-num { font-size: 30px; font-weight: 700; color: var(--accent); }
.stat-num.green { color: var(--green); }
.stat-label { margin-top: 4px; color: var(--muted); font-size: 13px; }

/* ===== 面板 ===== */
.panel {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px; margin-bottom: 16px;
}
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.panel-head h3 { font-size: 15px; }
.device-layout { display: grid; grid-template-columns: 420px 1fr; gap: 16px; align-items: start; }

/* ===== 表格 ===== */
.table-wrap { overflow: auto; max-height: 560px; }
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th, .table td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
.table th { color: var(--muted); font-weight: 600; position: sticky; top: 0; background: var(--panel); }
.table tbody tr { cursor: pointer; }
.table tbody tr:hover { background: var(--panel2); }
.table tbody tr.selected { background: rgba(59, 156, 255, .12); outline: 1px solid var(--accent); }
.empty { color: var(--muted); text-align: center; padding: 24px 0; font-size: 13px; }

/* ===== 徽章 ===== */
.badge { display: inline-block; padding: 2px 10px; border-radius: 12px; font-size: 12px; }
.badge.on  { background: rgba(46,204,113,.15); color: var(--green); }
.badge.off { background: rgba(231,76,60,.15); color: var(--red); }
.badge.pushing { background: rgba(59,156,255,.15); color: var(--accent); }
.badge.idle { background: rgba(139,160,184,.15); color: var(--muted); }

/* ===== 按钮 ===== */
.btn {
  padding: 5px 14px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--panel2); color: var(--text); cursor: pointer; font-size: 13px;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.danger { color: var(--red); }
.btn.mini { padding: 2px 10px; font-size: 12px; margin-left: 4px; }
.btn.disabled { opacity: .4; pointer-events: none; }

/* ===== 设备详情 ===== */
.info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 20px; font-size: 13px; margin-bottom: 14px; }
.info-grid .k { color: var(--muted); }
.info-grid .v { color: var(--text); word-break: break-all; }
.channel-actions { margin-left: 4px; }

/* ===== 播放链接 ===== */
.url-section { margin-bottom: 14px; }
.url-item {
  display: flex; align-items: center; gap: 8px; padding: 6px 10px;
  background: var(--panel2); border-radius: 6px; margin-bottom: 6px; font-size: 12px;
}
.url-proto { color: var(--accent); font-weight: 600; min-width: 60px; }
.url-text { flex: 1; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===== PTZ ===== */
.ptz-box { margin-top: 14px; }
.ptz-box h4 { font-size: 14px; margin-bottom: 10px; }
.ptz-layout { display: flex; gap: 18px; flex-wrap: wrap; }
.ptz-pad { display: grid; grid-template-columns: repeat(3, 52px); gap: 6px; }
.ptz-btn {
  width: 52px; height: 44px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--panel2); color: var(--text); cursor: pointer; font-size: 16px;
  user-select: none; -webkit-user-select: none;
}
.ptz-btn:hover { border-color: var(--accent); background: rgba(59,156,255,.15); }
.ptz-btn.stop { background: rgba(231,76,60,.15); color: var(--red); }
.ptz-side { display: flex; flex-direction: column; gap: 6px; }
.ptz-side .row { display: flex; gap: 6px; }
.ptz-side .ptz-btn { width: 60px; font-size: 13px; }
.ptz-ctrl { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 14px; align-items: center; font-size: 13px; }
.ptz-ctrl label { color: var(--muted); }
.ptz-ctrl input[type=range] { width: 140px; vertical-align: middle; }
.ptz-ctrl input[type=number] {
  width: 70px; background: var(--panel2); border: 1px solid var(--border);
  color: var(--text); border-radius: 6px; padding: 4px 8px;
}

/* ===== ZLM 信息 ===== */
.zlm-info { font-size: 13px; }
.zlm-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 8px 20px; }
.zlm-grid .k { color: var(--muted); }
.zlm-grid .v { color: var(--text); word-break: break-all; }

/* ===== 弹窗 ===== */
.modal-mask {
  position: fixed; inset: 0; background: rgba(0,0,0,.7); z-index: 100;
  display: flex; align-items: center; justify-content: center;
}
.modal {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  width: 90%; max-width: 820px; max-height: 90vh; display: flex; flex-direction: column;
}
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px; border-bottom: 1px solid var(--border);
}
.modal-head span { font-weight: 600; }
.modal-close {
  background: none; border: none; color: var(--muted); font-size: 22px; cursor: pointer; line-height: 1;
}
.modal-close:hover { color: var(--text); }
.modal-body { padding: 16px; overflow-y: auto; }
#playerContainer { width: 100%; height: 480px; background: #000; border-radius: 8px; overflow: hidden; }
#playerContainer video, #playerContainer canvas { width: 100%; height: 100%; }
#hlsPlayer { display: none; width: 100%; height: 480px; background: #000; border-radius: 8px; object-fit: contain; }

/* ===== 录像管理 ===== */
.rec-control { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-end; }
.rec-control label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.rec-control input, .rec-filter input {
  background: var(--panel2); border: 1px solid var(--border); color: var(--text);
  border-radius: 6px; padding: 6px 10px; font-size: 13px; width: 220px;
}
.rec-control input:focus, .rec-filter input:focus { outline: none; border-color: var(--accent); }
.rec-filter { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.rec-filter input { width: 180px; }
.rec-filter input[type=datetime-local] { width: 200px; }
.pager { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 14px; font-size: 13px; color: var(--muted); }
.rec-table tbody tr { cursor: default; }

/* ===== Toast ===== */
#toast {
  position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%);
  background: var(--panel2); border: 1px solid var(--border); color: var(--text);
  padding: 10px 20px; border-radius: 8px; font-size: 13px; z-index: 200;
  opacity: 0; pointer-events: none; transition: opacity .25s;
}
#toast.show { opacity: 1; }
#toast.ok { border-color: var(--green); }
#toast.error { border-color: var(--red); }

/* ===== 无人观看自动关流配置 ===== */
.no-reader-form { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-end; }
.no-reader-form label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.no-reader-form select, .no-reader-form input[type=number] {
  background: var(--panel2); border: 1px solid var(--border); color: var(--text);
  border-radius: 6px; padding: 6px 10px; font-size: 13px; width: 240px;
}
.no-reader-form input[type=number] { width: 140px; }
.no-reader-form select:focus, .no-reader-form input:focus { outline: none; border-color: var(--accent); }
.no-reader-hint { color: var(--muted); font-size: 12px; align-self: center; }

/* ===== 调试工具(手动添加通道, 仅排查用) ===== */
.debug-tool {
  border: 1px dashed var(--yellow);
  border-radius: 8px;
  background: rgba(241,196,15,.05);
  padding: 0 12px 10px;
  margin-bottom: 14px;
}
.debug-tool summary {
  cursor: pointer; list-style: none;
  display: flex; align-items: center; gap: 8px;
  padding: 9px 0 8px;
  font-size: 13px; font-weight: 600; color: var(--yellow);
  user-select: none;
}
.debug-tool summary::-webkit-details-marker { display: none; }
.debug-tool summary .debug-tag {
  font-size: 11px; font-weight: 700;
  color: var(--yellow);
  background: rgba(241,196,15,.15);
  border: 1px solid rgba(241,196,15,.35);
  padding: 1px 7px; border-radius: 4px;
}
.debug-tool summary .caret {
  margin-left: auto;
  width: 0; height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--muted);
  transition: transform .15s;
}
.debug-tool[open] summary .caret { transform: rotate(180deg); }
.debug-hint {
  color: var(--muted); font-size: 12px; line-height: 1.6;
  margin: 0 0 10px; padding: 8px 10px;
  background: var(--panel2); border-radius: 6px;
}
.debug-hint strong { color: var(--text); }

/* ===== 手动添加通道表单(位于调试工具内) ===== */
.debug-tool .manual-form {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  margin-bottom: 0;
}
.debug-tool .manual-form input, .debug-tool .manual-form select {
  background: var(--panel2); border: 1px solid var(--border); color: var(--text);
  border-radius: 6px; padding: 6px 10px; font-size: 13px; width: 240px;
}
.debug-tool .manual-form input:first-of-type { width: 260px; }
.debug-tool .manual-form input:focus, .debug-tool .manual-form select:focus { outline: none; border-color: var(--accent); }

/* ===== 注册/心跳时间线(ECharts) ===== */
.section-title { font-size: 14px; color: var(--muted); margin: 14px 0 8px; font-weight: 600; }
.event-chart-wrap { border-top: 1px solid var(--border); margin-top: 6px; padding-top: 2px; }
.event-chart { width: 100%; height: 220px; }