luanshaofeng
/
zone_alarm


			
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							<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>恒达视觉智能监控平台</title>
<link rel="icon" href="/logo.ico" type="image/x-icon">
<link rel="icon" href="/logo.png" type="image/png">
<style>
*{margin:0;padding:0;box-sizing:border-box;border-radius:0 !important}
body{font-family:system-ui,sans-serif;background:#12192e;color:#eee;overflow:hidden}
.app{display:flex;height:100vh}

/* ---------- 侧边栏 ---------- */
.sidebar{width:200px;background:#0e1426;border-right:1px solid #0f3460;display:flex;flex-direction:column;flex-shrink:0;transition:width .15s}
body.rail .sidebar{width:60px}
.logo{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid #0f3460;overflow:hidden}
.logo img{height:28px;flex-shrink:0}
.logo .t{font-size:14px;color:#e94560;font-weight:bold;white-space:nowrap}
body.rail .logo .t,body.rail .nav-label,body.rail .side-foot .nav-label{display:none}
.nav{padding-top:8px;flex:1}
.nav-item{display:flex;align-items:center;gap:12px;padding:13px 18px;color:#8892a8;cursor:pointer;font-size:14px;border-left:3px solid transparent;white-space:nowrap;user-select:none}
.nav-item:hover{background:#182242;color:#ccc}
.nav-item.active{color:#e94560;border-left-color:#e94560;background:#182242;font-weight:bold}
.nav-item .ico{width:20px;text-align:center;flex-shrink:0;font-weight:bold}
.side-foot{border-top:1px solid #0f3460;padding:12px 14px;display:flex;flex-direction:column;gap:10px}
.badge-wrap{display:flex;align-items:center;gap:8px}
.status-badge{padding:3px 10px;font-size:12px;font-weight:bold}
.status-on{background:#27ae60;color:#fff}
.status-off{background:#e74c3c;color:#fff}
.collapse-btn{background:none;border:1px solid #0f3460;color:#8892a8;padding:5px;cursor:pointer;font-size:12px;width:100%}
.collapse-btn:hover{color:#e94560;border-color:#e94560}

/* ---------- 内容区 ---------- */
.content{flex:1;overflow:auto;position:relative;background:#12192e}
.page{display:none;height:100%;overflow:auto}
.page.active{display:block}
.pad{padding:16px}
.card{background:#141d36;border:1px solid #0f3460;padding:16px;margin-bottom:16px}
.card h3{color:#e94560;margin-bottom:12px;font-size:15px}
h3.sec{color:#e94560;font-size:15px;margin:4px 0 12px}

/* ---------- 表单 ---------- */
.form-group{margin-bottom:12px}
.form-group label{display:block;font-size:13px;color:#aaa;margin-bottom:4px}
.form-group input,.form-group select{width:100%;padding:8px;border:1px solid #0f3460;background:#0e1426;color:#eee;font-size:13px}
.form-group input[type=checkbox]{width:15px;height:15px;cursor:pointer;vertical-align:-2px}
.btn{padding:8px 16px;border:none;cursor:pointer;font-size:13px;font-weight:bold}
.btn-primary{background:#e94560;color:#fff}
.btn-primary:hover{background:#c0392b}
.btn-success{background:#27ae60;color:#fff}
.btn-danger{background:#e74c3c;color:#fff}
.btn-outline{background:transparent;border:1px solid #555;color:#aaa}
.btn-outline:hover{border-color:#e94560;color:#e94560}
.btn-row{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}

/* ---------- 监控页 ---------- */
#videoStage{position:absolute;inset:0;background:#000}
.vcell{position:relative;background:#000;overflow:hidden}
.vcell .stream{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}
.vcell .tag{position:absolute;top:8px;left:8px;background:rgba(14,20,38,.85);border:1px solid #0f3460;color:#ddd;font-size:12px;padding:2px 10px;z-index:3}
.vcell.offline::after{content:"信号离线";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#e74c3c;font-size:16px;background:rgba(0,0,0,.55);z-index:2}
.model-chip{position:absolute;top:10px;right:10px;z-index:6;background:rgba(14,20,38,.85);border:1px solid #0f3460;color:#aaa;font-size:12px;padding:4px 12px}
#monitorFsBtn{position:absolute;top:10px;right:150px;z-index:6;background:rgba(14,20,38,.85);border:1px solid #0f3460;color:#eee;font-size:16px;line-height:1;padding:6px 12px;cursor:pointer;user-select:none}
#monitorFsBtn:hover{background:#182242;border-color:#e94560;color:#e94560}
#monitorFsBtn.on{background:#e94560;color:#fff;border-color:#e94560}
.info-bar{position:absolute;bottom:10px;left:10px;background:rgba(14,20,38,.9);border:1px solid #0f3460;padding:6px 14px;font-size:12px;z-index:6;color:#aaa}
.info-bar .val{color:#3498db}
.empty-tip{height:100%;display:flex;align-items:center;justify-content:center;color:#666;font-size:15px}

/* ---------- 围栏页 ---------- */
.fence-layout{display:flex;height:100%}
.fence-video{flex:1;position:relative;background:#000;min-width:0}
.fence-tools{position:absolute;top:10px;left:10px;z-index:8;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.fence-panel{width:320px;flex-shrink:0;background:#141d36;border-left:1px solid #0f3460;padding:14px;overflow-y:auto}
.ch-tabs{display:flex;gap:4px;flex-wrap:wrap}
.ch-tab{padding:5px 14px;background:#0e1426;border:1px solid #0f3460;cursor:pointer;font-size:12px;color:#aaa}
.ch-tab.active{border-color:#e94560;color:#e94560}
.ch-tab.offline{color:#e74c3c;border-color:#e74c3c}
.fence-list{margin-top:12px}
.fence-item{background:#0e1426;border:1px solid #0f3460;border-left:3px solid #3498db;padding:10px;margin-bottom:8px;position:relative}
.fence-item .name{font-weight:bold;color:#3498db}
.fence-item .pts{font-size:11px;color:#888;margin-top:4px}
.fence-item .actions{margin-top:8px;display:flex;gap:4px;flex-wrap:wrap}
.fence-item .actions button{padding:2px 8px;font-size:11px}

/* ---------- 报警页 ---------- */
.alarm-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.filter-bar{display:flex;gap:14px;align-items:end;margin-bottom:14px;flex-wrap:wrap}
.fitem label{display:block;font-size:11px;color:#888;margin-bottom:4px}
.fitem select,.fitem input{padding:6px 8px;background:#0e1426;border:1px solid #0f3460;color:#eee;font-size:13px}
.alist-row{display:flex;gap:12px;align-items:center;background:#0e1426;border:1px solid #0f3460;
border-left:3px solid #e94560;padding:8px 10px;margin-bottom:8px;cursor:pointer}
.alist-row:hover{border-color:#e94560;background:#182242}
.alist-row img{width:96px;height:54px;object-fit:cover;display:block;flex-shrink:0}
.alist-row .col-t{width:150px;font-size:12px;color:#888;flex-shrink:0}
.alist-row .col-ch{width:130px;font-size:13px;flex-shrink:0}
.alist-row .col-ch .nm{color:#3498db;font-size:11px}
.alist-row .col-f{flex:1;font-size:13px;color:#27ae60;min-width:0}
.alist-row .col-c{font-size:13px;color:#e94560;width:80px;text-align:right;flex-shrink:0}
.alist-row .col-conf{width:50px;text-align:right;font-size:12px;color:#27ae60;flex-shrink:0}

/* ---------- 继电器页 ---------- */
.relay-cols{display:grid;grid-template-columns:minmax(340px,460px) minmax(380px,1fr);gap:16px;align-items:start;padding:16px}
@media(max-width:1100px){.relay-cols{grid-template-columns:1fr}}
.rly-tbl{width:100%;border-collapse:collapse;font-size:13px}
.rly-tbl td,.rly-tbl th{padding:5px 3px;border-bottom:1px solid #0f3460;text-align:center}
.rly-tbl th{font-size:12px;color:#888;font-weight:normal}
.rly-tbl select,.rly-tbl input[type=number]{padding:3px;background:#0e1426;color:#eee;border:1px solid #0f3460;font-size:13px;width:80px}
.led{display:inline-block;width:12px;height:12px;background:#555;vertical-align:middle}
.led.on{background:#27ae60}
.hint{font-size:11px;color:#888;margin-bottom:6px}

/* ---------- 通道页 ---------- */
.ch-card{display:flex;justify-content:space-between;align-items:center;background:#0e1426;border:1px solid #0f3460;padding:12px 14px;margin-bottom:10px;gap:12px;flex-wrap:wrap}
.ch-card .info{min-width:0}
.ch-card .nm{font-weight:bold;color:#3498db;font-size:14px}
.ch-card .url{font-size:12px;color:#888;word-break:break-all;margin-top:3px}
.ch-card .ops{display:flex;gap:6px;flex-shrink:0}
.ch-card .ops button{padding:4px 12px;font-size:12px}
.pill{padding:2px 10px;font-size:11px;font-weight:bold;margin-left:8px}
.pill-on{background:#27ae60;color:#fff}
.pill-off{background:#e74c3c;color:#fff}

/* ---------- 系统页: 两列紧凑布局 ---------- */
.sys-wrap{margin:0 auto;padding:12px;display:grid;grid-template-columns:1fr 1fr;gap:12px;align-content:start}
.sys-wrap .card{margin-bottom:0;padding:12px}
.sys-wrap .card h3{margin-bottom:8px;font-size:14px}
.sys-wrap .form-group{margin-bottom:8px}
.sys-wrap .form-group label{font-size:12px;margin-bottom:2px}
.sys-wrap .form-group input,.sys-wrap .form-group select{padding:6px}
.sys-wrap .btn-row{margin-top:8px}
.sys-wrap .hint{font-size:12px;margin-bottom:6px}
@media (max-width:760px){.sys-wrap{grid-template-columns:1fr}}

/* ---------- PiP ---------- */

/* ---------- 弹窗 ---------- */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:100;justify-content:center;align-items:center}
.modal-overlay.show{display:flex}
.modal{background:#141d36;border:1px solid #0f3460;padding:24px;width:520px;max-height:90vh;overflow-y:auto}
.modal h3{margin-bottom:16px;color:#e94560}
.modal img{width:100%;margin-bottom:12px}
.modal .meta{font-size:12px;color:#aaa;line-height:1.8}
</style>
</head>
<body>
<div class="app">

  <aside class="sidebar" id="sidebar">
    <div class="logo"><img src="/logo.png" alt=""><span class="t">恒达视觉监控平台</span></div>
    <nav class="nav">
      <div class="nav-item active" data-page="monitor" onclick="switchPage('monitor')"><span class="ico">监</span><span class="nav-label">实时监控</span></div>
      <div class="nav-item" data-page="fence" onclick="switchPage('fence')"><span class="ico">围</span><span class="nav-label">电子围栏</span></div>
      <div class="nav-item" data-page="alarm" onclick="switchPage('alarm')"><span class="ico">警</span><span class="nav-label">报警历史</span></div>
      <div class="nav-item" data-page="targetcfg" onclick="switchPage('targetcfg')"><span class="ico">目</span><span class="nav-label">目标识别</span></div>
      <div class="nav-item" data-page="posecfg" onclick="switchPage('posecfg')"><span class="ico">姿</span><span class="nav-label">姿态识别</span></div>
      <div class="nav-item" data-page="action" onclick="switchPage('action')"><span class="ico">动</span><span class="nav-label">动作记录</span></div>
      <div class="nav-item" data-page="relay" onclick="switchPage('relay')"><span class="ico">继</span><span class="nav-label">继电器控制</span></div>
      <div class="nav-item" data-page="channel" onclick="switchPage('channel')"><span class="ico">通</span><span class="nav-label">通道管理</span></div>
      <div class="nav-item" data-page="system" onclick="switchPage('system')"><span class="ico">系</span><span class="nav-label">系统设置</span></div>
      <div style="border-top:1px solid #0f3460;margin:8px 12px"></div>
      <a class="nav-item" href="/preview.html" style="text-decoration:none"><span class="ico">工</span><span class="nav-label">工位预览</span></a>
      <a class="nav-item" href="/config.html" style="text-decoration:none"><span class="ico">设</span><span class="nav-label">工位配置</span></a>
    </nav>
    <div class="side-foot">
      <div class="badge-wrap">
        <span id="statusBadge" class="status-badge status-on">在线</span>
        <span style="font-size:11px;color:#666" class="nav-label" id="footInfo"></span>
      </div>
      <button class="collapse-btn" onclick="logout()" style="color:#e94560;border-color:#5a2a35">
        退出 (<span id="curUser">-</span>)
      </button>
      <button class="collapse-btn" onclick="document.body.classList.toggle('rail')">« 收起菜单</button>
    </div>
  </aside>

  <main class="content">

    <section id="page-monitor" class="page active">
      <div id="monitorSlot" style="position:absolute;inset:0"></div>
      <div class="model-chip" id="modelChip">RKNN | NPU</div>
      <div id="monitorFsBtn" title="全屏">⛶</div>
    </section>

    <section id="page-fence" class="page">
      <div class="fence-layout">
        <div class="fence-video" id="fenceSlot">
          <div class="fence-tools">
            <button class="btn btn-primary" onclick="startDraw()">+ 新建围栏</button>
            <button class="btn btn-outline" onclick="cancelDraw()">取消绘制</button>
            <div class="ch-tabs" id="fenceChTabs"></div>
          </div>
        </div>
        <div class="fence-panel">
          <h3 class="sec">当前通道: <span id="curChLabel">-</span></h3>
          <div class="hint">点击画面添加顶点, 双击或右键闭合, ESC取消</div>
          <div class="fence-list" id="fenceList"></div>
        </div>
      </div>
    </section>

    <section id="page-alarm" class="page pad">
      <div class="card">
        <div class="alarm-head">
          <h3>报警记录 <span id="alarmCount" style="font-size:12px;color:#888"></span></h3>
          <button class="btn btn-danger" style="padding:5px 14px" onclick="clearAllAlarms()">清空全部</button>
        </div>
        <div class="filter-bar">
          <div class="fitem"><label>摄像头</label>
            <select id="fltCh" onchange="loadAllAlarms()"><option value="">全部</option></select></div>
          <div class="fitem"><label>报警类型</label>
            <select id="fltType" onchange="loadAllAlarms()">
              <option value="">全部</option>
              <option value="fence">围栏报警</option>
              <option value="pose">姿态报警</option>
            </select></div>
          <div class="fitem"><label>开始时间</label>
            <input type="datetime-local" id="fltStart"></div>
          <div class="fitem"><label>结束时间</label>
            <input type="datetime-local" id="fltEnd"></div>
          <div class="fitem"><label>&nbsp;</label>
            <button class="btn btn-primary" onclick="loadAllAlarms()">查询</button></div>
          <div class="fitem"><label>&nbsp;</label>
            <button class="btn btn-outline" onclick="resetAlarmFilters()">重置</button></div>
        </div>
        <div id="alarmList"></div>
        <div id="alarmEmpty" class="empty-tip" style="height:200px;display:none">暂无符合条件的报警记录</div>
      </div>
    </section>

    <section id="page-targetcfg" class="page pad">
      <div class="sys-wrap">
        <div class="card">
          <h3>基础参数</h3>
          <div style="display:grid;grid-template-columns:1fr 1fr;gap:10px">
            <div class="form-group" style="margin:0"><label>跳帧数(N帧推理一次)</label><input type="number" id="cfgSkip" min="0" max="30" value="3"></div>
            <div class="form-group" style="margin:0"><label>置信度阈值</label><input type="number" id="cfgConf" min="0.1" max="1" step="0.05" value="0.35"></div>
            <div class="form-group" style="margin:0"><label>报警保留天数</label><input type="number" id="cfgRetention" min="1" max="3650" value="30"></div>
          </div>
          <div class="form-group" style="margin-top:12px">
            <label style="display:flex;align-items:center;gap:5px;cursor:pointer"><input type="checkbox" id="cfgTargetEnabled"> 启用目标识别</label>
          </div>
          <div class="btn-row" style="margin-top:8px"><button class="btn btn-primary" onclick="saveConfig()">保存参数</button></div>
        </div>
        <div class="card">
          <h3>入侵目标</h3>
          <div class="form-group">
            <label>勾选后进入围栏才报警</label>
            <div id="targetList" style="display:grid;grid-template-columns:1fr 1fr;gap:8px 16px;font-size:13px"></div>
          </div>
        </div>
      </div>
    </section>

    <section id="page-posecfg" class="page pad">
      <div class="sys-wrap">
        <div class="card">
          <h3>基础参数</h3>
          <div style="display:grid;grid-template-columns:1fr 1fr;gap:10px">
            <div class="form-group" style="margin:0"><label>跌倒阈值</label><input type="number" id="cfgFallThresh" min="0" max="1" step="0.05" value="0.5"></div>
            <div class="form-group" style="margin:0"><label>连续确认帧数</label><input type="number" id="cfgFallFrames" min="1" max="30" value="3"></div>
          </div>
          <div class="form-group" style="margin-top:12px">
            <label style="display:flex;align-items:center;gap:5px;cursor:pointer"><input type="checkbox" id="cfgPoseEnabled"> 启用姿态识别</label>
          </div>
          <div class="btn-row" style="margin-top:8px"><button class="btn btn-primary" onclick="savePoseConfig()">保存姿态配置</button></div>
        </div>
        <div class="card">
          <h3>可报警姿态</h3>
          <div class="form-group">
            <label>勾选启用对应姿态报警</label>
            <div id="poseActionList" style="display:grid;grid-template-columns:1fr 1fr;gap:8px 16px;font-size:13px"></div>
          </div>
        </div>
      </div>
    </section>

    <section id="page-action" class="page pad">
      <div class="card">
        <div class="alarm-head">
          <h3>继电器动作记录 <span id="actionCount" style="font-size:12px;color:#888"></span></h3>
          <button class="btn btn-danger" style="padding:5px 14px" onclick="clearActionHistory()">清空记录</button>
        </div>
        <div class="hint">与报警历史共享保留周期(检测参数中的"报警保留天数"), 到期自动清理</div>
        <table class="rly-tbl" id="actionTbl"></table>
        <div id="actionEmpty" class="empty-tip" style="height:180px;display:none">暂无动作记录</div>
      </div>
    </section>

    <section id="page-relay" class="page">
      <div class="relay-cols">
        <div>
          <div class="card">
            <h3>连接配置</h3>
            <div class="form-group">
              <label>设备IP</label>
              <input type="text" id="rlyHost" value="192.168.1.253">
            </div>
            <div style="display:flex;gap:10px">
              <div class="form-group" style="flex:1"><label>端口</label><input type="number" id="rlyPort" min="1" max="65535" value="1030" style="width:100%"></div>
              <div class="form-group" style="flex:1"><label>设备地址</label><input type="number" id="rlyAddr" min="0" max="254" value="1" style="width:100%"></div>
            </div>
            <div id="relayOnline" style="font-size:13px;margin-bottom:10px">设备状态: <span style="color:#e74c3c">离线</span></div>
          </div>
          <div class="card">
            <h3>报警策略</h3>
            <div style="display:flex;gap:10px">
              <div class="form-group" style="flex:1"><label>脉冲时长(秒)</label><input type="number" id="rlyPulse" min="1" max="3600" value="3" style="width:100%"></div>
              <div class="form-group" style="flex:1"><label>回合上限(秒,0不限)</label><input type="number" id="rlyMaxSec" min="0" max="3600" value="30" style="width:100%"></div>
              <div class="form-group" style="flex:1"><label>重新武装(秒)</label><input type="number" id="rlyRearm" min="1" max="600" value="10" style="width:100%"></div>
            </div>
            <div class="hint">报警出现立即输出一个脉冲; 状态持续则每脉冲时长重复, 单回合累计达上限后静默;
            目标消除/DI复位持续重新武装秒数后恢复判断. 围栏与输入联动共用.</div>
            <div class="btn-row" style="margin-top:0">
              <button class="btn btn-primary" onclick="saveRelayConfig()">保存配置</button>
            </div>
          </div>
        </div>
        <div>
          <div class="card">
            <h3>输出控制 Y1-Y8</h3>
            <div class="hint">状态列点击手动开关(周期模式通道会自动切回正常); 周期交替按间隔反复开闭; 测试=以该行参数运行周期交替6秒</div>
            <table class="rly-tbl" id="ymodeTbl"></table>
            <div class="btn-row"><button class="btn btn-primary" onclick="saveYModes()">保存输出模式</button></div>
          </div>
          <div class="card">
            <h3>输入联动矩阵</h3>
            <div class="hint">左侧灯=X实时信号(亮=有信号); 勾选Y=该输入触发哪些输出</div>
            <table class="rly-tbl" id="bindTbl"></table>
            <div class="btn-row"><button class="btn btn-primary" onclick="saveBindings()">保存联动绑定</button></div>
          </div>
          <div class="card">
            <h3>通道别名</h3>
            <div class="hint">用于各处显示与动作记录, 留空显示默认编号; 修改后点保存</div>
            <table class="rly-tbl" id="aliasTbl"></table>
            <div class="btn-row"><button class="btn btn-primary" onclick="saveAliases()">保存别名</button></div>
          </div>
        </div>
      </div>
    </section>

    <section id="page-channel" class="page pad">
      <div class="card">
        <h3>视频通道 <span id="chCount" style="font-size:12px;color:#888"></span></h3>
        <div id="channelList"></div>
        <div class="btn-row" style="margin-top:14px">
          <button class="btn btn-primary" onclick="openChForm(-1)">+ 添加通道</button>
        </div>
      </div>
      <div class="card" id="chFormCard" style="display:none">
        <h3 id="chFormTitle">添加通道</h3>
        <div class="form-group"><label>名称</label><input type="text" id="chName" placeholder="例: 大门北侧"></div>
        <div class="form-group"><label>RTSP地址</label><input type="text" id="chUrl" placeholder="rtsp://user:pass@ip:554/stream"></div>
        <div id="chTestResult" style="font-size:12px;color:#888;margin-bottom:8px"></div>
        <div class="btn-row" style="margin-top:0">
          <button class="btn btn-outline" onclick="testChUrl()">测试连接</button>
          <button class="btn btn-primary" onclick="saveChForm()">保存</button>
          <button class="btn btn-outline" onclick="closeChForm()">取消</button>
        </div>
      </div>
    </section>

    <section id="page-system" class="page">
      <div class="sys-wrap">
        <div class="card">
          <h3>识别与输出</h3>
          <div style="display:flex;gap:14px;flex-wrap:wrap;margin-bottom:8px;font-size:13px">
            <label style="display:flex;align-items:center;gap:5px;cursor:pointer"><input type="checkbox" id="sysTargetEnabled"> 目标识别</label>
            <label style="display:flex;align-items:center;gap:5px;cursor:pointer"><input type="checkbox" id="sysPoseEnabled"> 姿态识别</label>
          </div>
          <div style="display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px">
            <div class="form-group" style="margin:0"><label>通道网格显示</label><select id="sysGridOutput"><option value="true">启用</option><option value="false">禁用</option></select></div>
            <div class="form-group" style="margin:0"><label>钢包位显示</label><select id="sysSteelOutput"><option value="true">启用</option><option value="false">禁用</option></select></div>
            <div class="form-group" style="margin:0"><label>Web推流</label><select id="sysMjpegEnabled" onchange="toggleSystemMjpeg()"><option value="true">启用</option><option value="false">关闭(省CPU)</option></select></div>
          </div>
          <div class="btn-row"><button class="btn btn-primary" onclick="saveSystemOptions()">保存</button></div>
        </div>
        <div class="card">
          <h3>自动重启</h3>
          <div style="display:flex;align-items:center;gap:8px;margin-bottom:8px">
            <input type="checkbox" id="sysRebootEn">
            <label for="sysRebootEn" style="margin:0;font-size:13px;color:#eee;cursor:pointer">启用自动重启</label>
          </div>
          <div style="display:grid;grid-template-columns:1fr 1fr;gap:8px">
            <div class="form-group" style="margin:0"><label>周期(每N天)</label><input type="number" id="sysRebootCycle" min="1" max="365" value="1"></div>
            <div class="form-group" style="margin:0"><label>时间</label><input type="time" id="sysRebootTime" value="03:30"></div>
          </div>
          <div class="btn-row">
            <button class="btn btn-primary" onclick="saveSystemConfig()">保存</button>
            <button class="btn btn-danger" onclick="rebootNow()">立即重启</button>
          </div>
        </div>
        <div class="card">
          <h3>密码管理</h3>
          <div style="display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px">
            <div class="form-group" style="margin:0;grid-column:1/-1"><label>原密码</label><input type="password" id="pwdOld" autocomplete="current-password"></div>
            <div class="form-group" style="margin:0"><label>新用户名(可空)</label><input type="text" id="pwdNewUser" placeholder="留空不变"></div>
            <div class="form-group" style="margin:0"><label>新密码</label><input type="password" id="pwdNew1" autocomplete="new-password"></div>
            <div class="form-group" style="margin:0"><label>确认新密码</label><input type="password" id="pwdNew2" autocomplete="new-password"></div>
          </div>
          <div class="btn-row">
            <button class="btn btn-primary" onclick="changePassword()">修改凭据</button>
          </div>
        </div>
      </div>
    </section>

  </main>
</div>

<div id="videoStage" data-mode="grid" style="display:none">
  <div id="gridWrap" style="position:absolute;inset:0;display:grid;gap:2px"></div>
  <div id="singleWrap" style="position:absolute;inset:0;display:none;background:#000">
    <div class="vcell" id="singleCell" style="position:absolute;inset:0"></div>
  </div>
  <canvas id="fenceCanvas" style="position:absolute;inset:0;width:100%;height:100%;z-index:5;cursor:crosshair"></canvas>
  <div class="info-bar">
    <span>通道: <span class="val" id="infoCh">-</span></span>
    <span>围栏: <span class="val" id="infoFences">0</span></span>
    <span>鼠标: <span class="val" id="infoMouse">-</span></span>
  </div>
</div>

<div class="modal-overlay" id="renameModal">
  <div class="modal" style="width:400px">
    <h3>围栏命名</h3>
    <div class="form-group"><label>名称</label><input type="text" id="fenceNameInput" placeholder="例: 入口区域"></div>
    <div class="btn-row"><button class="btn btn-primary" onclick="confirmRename()">确定</button>
    <button class="btn btn-outline" onclick="document.getElementById('renameModal').classList.remove('show')">取消</button></div>
  </div>
</div>

<div class="modal-overlay" id="bindModal">
  <div class="modal" style="width:400px">
    <h3>围栏绑定输出 - <span id="bindFenceName"></span></h3>
    <div style="font-size:12px;color:#888;margin-bottom:10px">该围栏报警时闭合勾选的继电器, 脉冲时长后自动断开</div>
    <div id="bindYList" style="display:flex;flex-wrap:wrap;gap:6px 14px;margin-bottom:14px;font-size:13px"></div>
    <div class="btn-row">
      <button class="btn btn-primary" onclick="confirmFenceBind()">确定</button>
      <button class="btn btn-outline" onclick="document.getElementById('bindModal').classList.remove('show')">取消</button>
    </div>
  </div>
</div>

<div class="modal-overlay" id="alarmModal">
  <div class="modal">
    <h3>报警详情</h3>
    <img id="alarmScreenshot" src="">
    <div class="meta" id="alarmMeta"></div>
    <div class="btn-row"><button class="btn btn-outline" onclick="closeAlarmModal()">关闭</button></div>
  </div>
</div>

<script>
/* ================= 页面切换 ================= */
let curPage = 'monitor';
let stageMode = 'grid';

function switchPage(p) {
  curPage = p;
  document.querySelectorAll('.page').forEach(s => s.classList.toggle('active', s.id === 'page-' + p));
  document.querySelectorAll('.nav-item').forEach(n => n.classList.toggle('active', n.dataset.page === p));
  const stage = document.getElementById('videoStage');
  const onVideoPage = (p === 'monitor' || p === 'fence');
  if (onVideoPage) {
    const host = (p === 'monitor') ? document.getElementById('monitorSlot')
                                   : document.getElementById('fenceSlot');
    host.appendChild(stage);
    stage.style.display = 'block';
    setStageMode(p === 'monitor' ? 'grid' : 'single');
    setTimeout(resizeCanvas, 80);
  } else {
    stage.style.display = 'none';
  }
  if (p === 'alarm') loadAllAlarms();
  if (p === 'targetcfg') loadTargetConfig();
  if (p === 'posecfg') loadPoseConfig();
  if (p === 'action') loadActions();
  if (p === 'relay') { loadRelayStatus(); loadBindings(); }
  if (p === 'channel') renderChannelList();
  applyStreamPolicy();
}

function setStageMode(m) {
  if (stageMode === m) return;
  stageMode = m;
  document.getElementById('videoStage').dataset.mode = m;
  document.getElementById('gridWrap').style.display = (m === 'grid') ? 'grid' : 'none';
  document.getElementById('singleWrap').style.display = (m === 'grid') ? 'none' : 'block';
  document.getElementById('fenceCanvas').style.pointerEvents = (m === 'single') ? 'auto' : 'none';
  if (m !== 'single') cancelDraw();
  draw();   // 切换模式时刷新画布(网格模式下清空残留绘制)
  placeStreams();
}

/* ================= 通道数据与视频流 ================= */
let CHANNELS = [];
let curChannel = -1;
let cellSig = '', tabSig = '';
const desired = {};

function chById(id) { return CHANNELS.find(c => c.id === id); }

function syncChannels(list) {
  CHANNELS = list;
  if (!list.find(c => c.id === curChannel)) curChannel = list.length ? list[0].id : -1;
  rebuildCells();
  renderFenceTabs();
  renderChannelList();
  syncAlarmFilterOptions();
  layoutGrid();
  placeStreams();
  updateCellStates();
  applyStreamPolicy();
  draw();
  const on = list.filter(c => c.online).length;
  document.getElementById('footInfo').textContent =
    (on ? on : 0) + '/' + list.length + ' 路在线';
}

function rebuildCells() {
  const gw = document.getElementById('gridWrap');
  const sig = CHANNELS.map(c => c.id + ':' + c.name).join('|');
  if (sig === cellSig) return;
  cellSig = sig;
  gw.innerHTML = '';
  if (!CHANNELS.length) {
    gw.innerHTML = '<div class="empty-tip" style="grid-column:1/-1">暂无视频通道, 请到「通道管理」添加</div>';
    return;
  }
  CHANNELS.forEach(c => {
    const cell = document.createElement('div');
    cell.className = 'vcell';
    cell.dataset.ch = c.id;
    const tag = document.createElement('div');
    tag.className = 'tag';
    tag.textContent = 'CH' + c.id + ' ' + c.name;
    const img = document.createElement('img');
    img.className = 'stream';
    img.dataset.ch = c.id;
    img.addEventListener('error', () => {
      if (desired[c.id]) setTimeout(() => { if (desired[c.id]) connectStream(c.id); }, 1500);
    });
    cell.appendChild(img);
    cell.appendChild(tag);
    gw.appendChild(cell);
  });
}

function updateCellStates() {
  CHANNELS.forEach(c => {
    const cell = document.querySelector('.vcell[data-ch="' + c.id + '"]');
    if (cell) cell.classList.toggle('offline', !c.online);
  });
}

function imgOf(id) {
  return document.querySelector(
    '#singleCell .stream[data-ch="' + id + '"], #gridWrap .stream[data-ch="' + id + '"]');
}

function placeStreams() {
  if (stageMode === 'single') {
    const img = imgOf(curChannel);
    if (img) document.getElementById('singleCell').appendChild(img);
  } else {
    CHANNELS.forEach(c => {
      const cell = document.querySelector('#gridWrap .vcell[data-ch="' + c.id + '"]');
      const img = imgOf(c.id);
      if (cell && img) cell.insertBefore(img, cell.firstChild);
    });
  }
}

function renderFenceTabs() {
  const el = document.getElementById('fenceChTabs');
  const sig = CHANNELS.map(c => c.id + ':' + c.online).join('|') + '|' + curChannel;
  if (sig === tabSig) return;
  tabSig = sig;
  el.innerHTML = CHANNELS.map(c =>
    `<div class="ch-tab ${c.id===curChannel?'active':''} ${c.online?'':'offline'}" data-ch="${c.id}" onclick="selectChannel(${c.id})">CH${c.id}</div>`
  ).join('');
}

function selectChannel(id) {
  if (!chById(id)) return;
  curChannel = id;
  tabSig = '';
  renderFenceTabs();
  placeStreams();
  applyStreamPolicy();
  document.getElementById('curChLabel').textContent = 'CH' + id + ' ' + (chById(id).name || '');
  document.getElementById('infoCh').textContent = id;
  renderFenceList();
  draw();
  loadChannelSize();
}

function layoutGrid() {
  const n = CHANNELS.length;
  const cols = n <= 1 ? '1fr' : n <= 4 ? 'repeat(2, 1fr)' : 'repeat(3, 1fr)';
  const gw = document.getElementById('gridWrap');
  gw.style.gridTemplateColumns = cols;
  gw.style.gridAutoRows = n <= 1 ? '100%' : '50%';
}

function connectStream(id) {
  const img = imgOf(id);
  if (!img || img.dataset.on === '1') return;
  img.src = '/mjpeg/' + id + '?t=' + Date.now();
  img.dataset.on = '1';
}
function disconnectStream(id) {
  const img = imgOf(id);
  if (!img || img.dataset.on !== '1') return;
  img.removeAttribute('src');
  img.dataset.on = '0';
}

function applyStreamPolicy() {
  const videoVisible = (curPage === 'monitor' || curPage === 'fence');
  CHANNELS.forEach(c => {
    let want = videoVisible && ((stageMode === 'grid') || c.id === curChannel);
    desired[c.id] = want;
    if (want) connectStream(c.id); else disconnectStream(c.id);
  });
}

/* ================= 通道管理 ================= */
function renderChannelList() {
  const el = document.getElementById('channelList');
  document.getElementById('chCount').textContent = CHANNELS.length + '/8 路';
  el.innerHTML = CHANNELS.map(c => `
    <div class="ch-card">
      <div class="info">
        <span class="nm">CH${c.id} - ${c.name}</span>
        <span class="pill ${c.online ? 'pill-on' : 'pill-off'}">${c.online ? '在线' : '离线'}</span>
        <div class="url">${c.url}</div>
      </div>
      <div class="ops">
        <button class="btn btn-outline" onclick="openChForm(${c.id})">编辑</button>
        <button class="btn btn-danger" onclick="deleteChannel(${c.id})">删除</button>
      </div>
    </div>`).join('') ||
    '<div style="color:#666;font-size:13px;text-align:center;padding:16px">暂无通道, 点击下方按钮添加</div>';
}

let chEditingId = -1;

function openChForm(id) {
  chEditingId = id;
  const editing = id >= 0 ? chById(id) : null;
  document.getElementById('chFormTitle').textContent = editing ? ('编辑通道 CH' + id) : '添加通道';
  document.getElementById('chName').value = editing ? editing.name : '';
  document.getElementById('chUrl').value = editing ? editing.url : 'rtsp://';
  const res = document.getElementById('chTestResult');
  res.textContent = (CHANNELS.length >= 8 && !editing) ? '已达最大通道数8路, 请先删除' : '';
  res.style.color = '#888';
  document.getElementById('chFormCard').style.display = 'block';
}

function closeChForm() { document.getElementById('chFormCard').style.display = 'none'; }

async function testChUrl() {
  const url = document.getElementById('chUrl').value.trim();
  const out = document.getElementById('chTestResult');
  out.style.color = '#888';
  out.textContent = '测试中...';
  try {
    const r = await fetch('/api/channels/test', {
      method: 'POST', headers: {'Content-Type': 'application/json'},
      body: JSON.stringify({url})
    });
    const d = await r.json();
    out.textContent = d.ok ? ('连接成功: ' + (d.host || '')) : ('失败: ' + (d.error || '无法连接'));
    out.style.color = d.ok ? '#27ae60' : '#e74c3c';
  } catch (e) { out.textContent = '请求失败'; }
}

async function saveChForm() {
  const name = document.getElementById('chName').value.trim();
  const url = document.getElementById('chUrl').value.trim();
  if (!name) { alert('请输入名称'); return; }
  if (!url.startsWith('rtsp://')) { alert('RTSP地址必须以 rtsp:// 开头'); return; }
  const body = {name, url};
  if (chEditingId >= 0) body.id = chEditingId;
  try {
    const r = await fetch('/api/channels/save', {
      method: 'POST', headers: {'Content-Type': 'application/json'},
      body: JSON.stringify(body)
    });
    const d = await r.json();
    if (d.ok) { closeChForm(); loadStatus(); }
    else alert(d.error || '保存失败');
  } catch (e) { alert('保存失败'); }
}

async function deleteChannel(id) {
  const c = chById(id);
  if (!confirm('删除通道 CH' + id + ' ' + (c ? c.name : '') + '?\n其围栏配置将保留')) return;
  try {
    const r = await fetch('/api/channels/delete', {
      method: 'POST', headers: {'Content-Type': 'application/json'},
      body: JSON.stringify({id})
    });
    const d = await r.json();
    if (d.ok) loadStatus(); else alert(d.error || '删除失败');
  } catch (e) { alert('删除失败'); }
}

/* ================= 围栏绘制与列表 ================= */
const canvas = document.getElementById('fenceCanvas');
const ctx = canvas.getContext('2d');
let fences = {};
let drawing = false;
let tempPoints = [];
let imgW = 640, imgH = 360;
let viewS = 1, viewOX = 0, viewOY = 0;
let renameIdx = -1;

function resizeCanvas() {
  const r = canvas.parentElement.getBoundingClientRect();
  if (r.width === 0) return;
  canvas.width = r.width;
  canvas.height = r.height;
  updateView();
}
function updateView() {
  viewS = Math.min(canvas.width / imgW, canvas.height / imgH);
  viewOX = (canvas.width - imgW * viewS) / 2;
  viewOY = (canvas.height - imgH * viewS) / 2;
  draw();
}
 window.addEventListener('resize', resizeCanvas);

/* ================= 全屏监控 ================= */
function toggleMonitorFullscreen() {
  const btn = document.getElementById('monitorFsBtn');
  const el = document.getElementById('page-monitor');
  if (!document.fullscreenElement) {
    const r = el.requestFullscreen || el.webkitRequestFullscreen;
    if (r) { r.call(el); btn.classList.add('on'); }
  } else {
    const r = document.exitFullscreen || document.webkitExitFullscreen;
    if (r) { r.call(document); btn.classList.remove('on'); }
  }
}
document.addEventListener('fullscreenchange', () => {
  const btn = document.getElementById('monitorFsBtn');
  if (btn) btn.classList.toggle('on', !!document.fullscreenElement);
});
document.getElementById('monitorFsBtn').addEventListener('click', toggleMonitorFullscreen);


function startDraw() {
  if (!chById(curChannel)) { alert('暂无通道'); return; }
  drawing = true;
  tempPoints = [];
  draw();
}
function cancelDraw() {
  drawing = false;
  tempPoints = [];
  draw();
}

function fenceColor(f, alpha) {
  const a = alpha || 1;
  if (!f.active) return `rgba(128,128,128,${a})`;
  const hue = (f.id * 47) % 360;
}

function draw() {
  ctx.clearRect(0, 0, canvas.width, canvas.height);
  // 网格(监控)模式不画
  if (stageMode !== 'single') return;
  // 已保存的围栏由服务端叠加进视频流(半透明),
  // 前端只绘制"正在绘制中"的临时顶点, 避免两层叠加导致区域发暗不透明
  ctx.save();
  ctx.setTransform(viewS, 0, 0, viewS, viewOX, viewOY);
  if (tempPoints.length > 0) {
    ctx.beginPath();
    ctx.moveTo(tempPoints[0][0], tempPoints[0][1]);
    for (let i = 1; i < tempPoints.length; i++)
      ctx.lineTo(tempPoints[i][0], tempPoints[i][1]);
    ctx.strokeStyle = '#e94560';
    ctx.lineWidth = 2 / viewS;
    ctx.setLineDash([6/viewS, 4/viewS]);
    ctx.stroke();
    ctx.setLineDash([]);
    tempPoints.forEach(p => {
      ctx.beginPath();
      ctx.arc(p[0], p[1], 5/viewS, 0, Math.PI*2);
      ctx.fillStyle = '#e94560';
      ctx.fill();
    });
  }
  ctx.restore();
  document.getElementById('infoFences').textContent =
    (fences[curChannel] || []).length;
}

function canvasToImg(e) {
  const r = canvas.getBoundingClientRect();
  const x = (e.clientX - r.left - viewOX) / viewS;
  const y = (e.clientY - r.top - viewOY) / viewS;
  return [Math.round(x), Math.round(y)];
}

canvas.addEventListener('mousemove', e => {
  if (!chById(curChannel)) return;
  const [x, y] = canvasToImg(e);
  document.getElementById('infoMouse').textContent = `${x}, ${y}`;
});
canvas.addEventListener('click', e => {
  if (!drawing) return;
  tempPoints.push(canvasToImg(e));
  draw();
});
canvas.addEventListener('dblclick', () => {
  if (!drawing || tempPoints.length < 3) return;
  finishDraw();
});
canvas.addEventListener('contextmenu', e => {
  e.preventDefault();
  if (!drawing || tempPoints.length < 3) return;
  finishDraw();
});
document.addEventListener('keydown', e => {
  if (e.key === 'Escape' && drawing) cancelDraw();
});

function finishDraw() {
  drawing = false;
  if (!fences[curChannel]) fences[curChannel] = [];
  fences[curChannel].push({
    id: Date.now() % 100000,
    name: 'Fence' + (fences[curChannel].length + 1),
    active: true,
    relays: [],
    polygon: tempPoints
  });
  tempPoints = [];
  saveFences(); draw(); renderFenceList();
}

function renderFenceList() {
  const el = document.getElementById('fenceList');
  const chFences = fences[curChannel] || [];
  el.innerHTML = chFences.map((f, i) => `
    <div class="fence-item" style="border-left-color:${fenceColor(f)}">
      <div style="display:flex;justify-content:space-between;align-items:center">
        <span class="name">${f.name}</span>
        <span style="font-size:11px;color:${f.active?'#27ae60':'#888'}">${f.active?'启用':'禁用'}</span>
      </div>
      <div class="pts">${f.polygon.length}个顶点 - 绑定${(f.relays||[]).length ? f.relays.map(r=>'Y'+parseInt(r.slice(1))).join(',') : '无'}</div>
      <div class="actions">
        <button class="btn btn-outline" onclick="toggleFence(${i})">${f.active?'禁用':'启用'}</button>
        <button class="btn btn-outline" onclick="renameFence(${i})">命名</button>
        <button class="btn btn-outline" onclick="openFenceBind(${i})">绑定</button>
        <button class="btn btn-danger" onclick="deleteFence(${i})">删除</button>
      </div>
    </div>`).join('') ||
    '<div style="color:#666;font-size:12px;text-align:center;padding:14px">该通道暂无围栏</div>';
}

function toggleFence(i) {
  fences[curChannel][i].active = !fences[curChannel][i].active;
  saveFences(); draw(); renderFenceList();
}
function renameFence(i) {
  window._ri = i;
  document.getElementById('fenceNameInput').value = fences[curChannel][i].name;
  document.getElementById('renameModal').classList.add('show');
  document.getElementById('fenceNameInput').focus();
}
function confirmRename() {
  const i = window._ri;
  if (i >= 0 && fences[curChannel] && fences[curChannel][i]) {
    fences[curChannel][i].name = document.getElementById('fenceNameInput').value;
    saveFences(); renderFenceList(); draw();
  }
  document.getElementById('renameModal').classList.remove('show');
}
function deleteFence(i) {
  if (!confirm('删除围栏 ' + fences[curChannel][i].name + '?')) return;
  fences[curChannel].splice(i, 1);
  saveFences(); draw(); renderFenceList();
}

let bindIdx = -1;
function openFenceBind(i) {
  bindIdx = i;
  const f = fences[curChannel][i];
  document.getElementById('bindFenceName').textContent = f.name || ('Fence' + (i+1));
  let html = '';
  const ny = 8;
  for (let y = 1; y <= ny; y++) {
    const ch = 'y' + String(y).padStart(2, '0');
    const on = (f.relays || []).includes(ch);
    const al = aliasOf(ch);
    html += `<label style="cursor:pointer;display:flex;align-items:center;gap:4px" title="${al}">
      <input type="checkbox" class="fy-ck" value="${ch}" ${on?'checked':''}>Y${y}${al ? '('+al+')' : ''}</label>`;
  }
  document.getElementById('bindYList').innerHTML = html;
  document.getElementById('bindModal').classList.add('show');
}
function confirmFenceBind() {
  if (bindIdx >= 0) {
    fences[curChannel][bindIdx].relays =
      Array.from(document.querySelectorAll('.fy-ck:checked')).map(c => c.value);
    saveFences(); renderFenceList();
  }
  document.getElementById('bindModal').classList.remove('show');
}

async function loadFences() {
  try {
    const r = await fetch('/api/fences');
    fences = await r.json();
    renderFenceList(); draw();
  } catch (e) {}
}
async function saveFences() {
  try {
    await fetch('/api/fences', {
      method: 'POST', headers: {'Content-Type': 'application/json'},
      body: JSON.stringify(fences)
    });
  } catch (e) {}
}

function syncAlarmFilterOptions() {
  const sel = document.getElementById('fltCh');
  if (sel) {
    const cur = sel.value;
    sel.innerHTML = '<option value="">全部</option>' +
      CHANNELS.map(c => `<option value="${c.id}">CH${c.id} ${c.name}</option>`).join('');
    sel.value = [...sel.options].some(o => o.value === cur) ? cur : '';
  }
  const psel = document.getElementById('pfltCh');
  if (psel) {
    const cur = psel.value;
    psel.innerHTML = '<option value="">全部</option>' +
      CHANNELS.map(c => `<option value="${c.id}">CH${c.id} ${c.name}</option>`).join('');
    psel.value = [...psel.options].some(o => o.value === cur) ? cur : '';
  }
}

/* ================= 报警历史(围栏+姿态合并) ================= */
function alarmQuery() {
  const qs = new URLSearchParams();
  const ch = document.getElementById('fltCh').value;
  if (ch !== '') qs.set('channel', ch);
  const st = document.getElementById('fltStart').value.replace('T', ' ');
  const en = document.getElementById('fltEnd').value.replace('T', ' ');
  if (st) qs.set('start', st + ':00');
  if (en) qs.set('end', en + ':59');
  return qs.toString();
}
function resetAlarmFilters() {
  document.getElementById('fltCh').value = '';
  document.getElementById('fltType').value = '';
  document.getElementById('fltStart').value = '';
  document.getElementById('fltEnd').value = '';
  loadAllAlarms();
}
function poseActionColor(a) {
  if (a === '跌倒') return '#e94560';
  if (a === '举手呼救') return '#f39c12';
  if (a === '异常蹲坐') return '#3498db';
  if (a === '半躺') return '#9b59b6';
  if (a === '抽烟') return '#e67e22';
  if (a === '打哈欠') return '#16a085';
  return '#8892a8';
}
async function loadAllAlarms() {
  try {
    const qs = alarmQuery();
    const type = document.getElementById('fltType').value;
    // 并行取围栏报警 + 姿态报警, 合并后按时间排序
    const [fenceR, poseR] = await Promise.all([
      fetch('/api/alarms' + (qs ? '?' + qs : '')),
      fetch('/api/pose/alarms' + (qs ? '?' + qs : ''))
    ]);
    if (fenceR.status === 401) { location.href = '/login'; return; }
    const fd = await fenceR.json();
    const pd = await poseR.json();
    const fenceItems = (fd.items || []).map(a => ({
      type: 'fence',
      timestamp: a.timestamp, channel: a.channel,
      label: a.fence_name, detail: a.class_name,
      conf: a.confidence, screenshot: a.screenshot,
      actionColor: '#27ae60', id: a.id
    }));
    const poseItems = (pd.items || []).map(a => ({
      type: 'pose',
      timestamp: a.timestamp, channel: a.channel,
      label: a.action, detail: '姿态',
      conf: a.score, screenshot: a.screenshot,
      actionColor: poseActionColor(a.action), id: a.id
    }));
    let items = type === 'fence' ? fenceItems
              : type === 'pose' ? poseItems
              : [...fenceItems, ...poseItems];
    items.sort((x, y) => y.timestamp.localeCompare(x.timestamp));
    document.getElementById('alarmCount').textContent =
      items.length + '条' + (qs ? '(筛选后)' : '');
    const list = document.getElementById('alarmList');
    const empty = document.getElementById('alarmEmpty');
    if (!items.length) { list.innerHTML = ''; empty.style.display = 'flex'; return; }
    empty.style.display = 'none';
    list.innerHTML = items.map(a => {
      const c = chById(a.channel);
      const tag = a.type === 'pose'
        ? `<span style="color:${a.actionColor};font-size:11px;border:1px solid ${a.actionColor};padding:0 6px;border-radius:3px">姿态</span>`
        : `<span style="color:#27ae60;font-size:11px;border:1px solid #27ae60;padding:0 6px;border-radius:3px">围栏</span>`;
      return `
      <div class="alist-row" style="border-left-color:${a.actionColor}"
           onclick="showAlarm('${a.screenshot}','${a.timestamp}',${a.channel},'${a.label}','${a.detail}',${a.conf})">
        <img src="/${a.screenshot}" loading="lazy" alt="">
        <div class="col-t">${a.timestamp}</div>
        <div class="col-ch">CH${a.channel}<div class="nm">${c ? c.name : ''}</div></div>
        <div class="col-f" style="color:${a.actionColor}">${a.label}</div>
        <div class="col-c">${tag}</div>
        <div class="col-conf">${(a.conf*100).toFixed(0)}%</div>
        <button class="btn btn-outline" style="padding:3px 10px;font-size:12px"
                onclick="event.stopPropagation();delAlarm(${a.id},'${a.type}')">删除</button>
      </div>`;
    }).join('');
  } catch (e) {}
}
function showAlarm(screenshot, time, ch, label, detail, conf) {
  document.getElementById('alarmScreenshot').src = '/' + screenshot;
  const c = chById(ch);
  document.getElementById('alarmMeta').innerHTML =
    `时间: ${time}<br>通道: CH${ch} ${c ? c.name : ''}<br>类型: ${label}<br>详情: ${detail}<br>置信度: ${(conf*100).toFixed(1)}%`;
  document.getElementById('alarmModal').classList.add('show');
}
function closeAlarmModal() { document.getElementById('alarmModal').classList.remove('show'); }
async function delAlarm(id, type) {
  if (!confirm('删除此条报警?')) return;
  const url = type === 'pose' ? '/api/pose/alarms/delete' : '/api/alarms/delete';
  try {
    await fetch(url, {method:'POST', headers:{'Content-Type':'application/json'},
      body: JSON.stringify({id})});
    loadAllAlarms();
  } catch (e) {}
}
async function clearAllAlarms() {
  if (!confirm('清空所有报警记录?')) return;
  try {
    await fetch('/api/alarms/clear', {method:'POST'});
    await fetch('/api/pose/alarms/clear', {method:'POST'});
    loadAllAlarms();
  } catch (e) {}
}

/* ================= 目标识别配置 ================= */
const TARGET_CLASSES = [
  ['person','人'], ['bicycle','自行车'], ['car','汽车'],
  ['motorcycle','摩托车'], ['bus','公交车'], ['truck','卡车'], ['train','火车']
];
function renderTargets() {
  const el = document.getElementById('targetList');
  if (!el) return;
  el.innerHTML = TARGET_CLASSES.map(([name,label]) =>
    `<label style="cursor:pointer;display:flex;align-items:center;gap:4px">
      <input type="checkbox" class="target-ck" value="${name}">${label}</label>`).join('');
}
function getSelectedClasses() {
  return Array.from(document.querySelectorAll('.target-ck:checked')).map(c => c.value);
}
function setSelectedClasses(list) {
  const set = new Set(list || []);
  document.querySelectorAll('.target-ck').forEach(c => c.checked = set.has(c.value));
}
async function loadTargetConfig() {
  try {
    const r = await fetch('/api/status');
    const d = await r.json();
    if (document.getElementById('cfgSkip')) document.getElementById('cfgSkip').value = d.skip_frames;
    if (document.getElementById('cfgConf')) document.getElementById('cfgConf').value = d.conf_thresh;
    if (document.getElementById('cfgRetention')) document.getElementById('cfgRetention').value = d.alarm_retention_days;
    if (document.getElementById('cfgTargetEnabled')) document.getElementById('cfgTargetEnabled').checked = d.target_enabled !== false;
    renderTargets();
    setSelectedClasses(d.alarm_classes);
  } catch (e) {}
}
async function saveConfig() {
  const body = {
    skip_frames: parseInt(document.getElementById('cfgSkip').value),
    conf_thresh: parseFloat(document.getElementById('cfgConf').value),
    alarm_retention_days: parseInt(document.getElementById('cfgRetention').value),
    alarm_classes: getSelectedClasses(),
    target_enabled: document.getElementById('cfgTargetEnabled').checked
  };
  try {
    const r = await fetch('/api/config', {method:'POST',
      headers:{'Content-Type':'application/json'}, body: JSON.stringify(body)});
    const d = await r.json();
    alert(d.ok ? '已保存' : '保存失败');
  } catch (e) { alert('保存失败'); }
}

/* ================= 姿态识别配置 ================= */
const POSE_ACTIONS = [
  ['跌倒', '跌倒'],
  ['举手呼救', '举手呼救'],
  ['异常蹲坐', '异常蹲坐'],
  ['半躺', '半躺'],
  ['抽烟', '抽烟'],
  ['打哈欠', '打哈欠']
];
function renderPoseActions() {
  const el = document.getElementById('poseActionList');
  if (!el) return;
  el.innerHTML = POSE_ACTIONS.map(([name, label]) =>
    `<label style="cursor:pointer;display:flex;align-items:center;gap:4px">
      <input type="checkbox" class="pose-act-ck" value="${name}">${label}</label>`).join('');
}
async function loadPoseConfig() {
  try {
    const [r1, r2] = await Promise.all([
      fetch('/api/status'),
      fetch('/api/pose/status')
    ]);
    const d = await r1.json();
    const pd = await r2.json();
    if (document.getElementById('cfgPoseEnabled')) document.getElementById('cfgPoseEnabled').checked = d.pose_cfg_enabled !== false;
    if (document.getElementById('cfgFallThresh')) document.getElementById('cfgFallThresh').value = pd.fall_thresh;
    if (document.getElementById('cfgFallFrames')) document.getElementById('cfgFallFrames').value = pd.fall_frames;
    // 可报警姿态: 由后端开关决定勾选
    renderPoseActions();
    const enabled = [];
    if (pd.pose_hand_raise !== false) enabled.push('举手呼救');
    if (pd.pose_crouch !== false) enabled.push('异常蹲坐');
    if (pd.pose_recline !== false) enabled.push('半躺');
    if (pd.pose_smoking !== false) enabled.push('抽烟');
    if (pd.pose_yawn !== false) enabled.push('打哈欠');
    // 跌倒固定启用
    enabled.push('跌倒');
    document.querySelectorAll('.pose-act-ck').forEach(c =>
      c.checked = enabled.includes(c.value));
  } catch (e) {}
}
async function savePoseConfig() {
  const checks = {};
  document.querySelectorAll('.pose-act-ck').forEach(c => checks[c.value] = c.checked);
  const body = {
    pose_enabled: document.getElementById('cfgPoseEnabled').checked,
    fall_thresh: parseFloat(document.getElementById('cfgFallThresh').value),
    fall_frames: parseInt(document.getElementById('cfgFallFrames').value),
    pose_hand_raise: !!checks['举手呼救'],
    pose_crouch: !!checks['异常蹲坐'],
    pose_recline: !!checks['半躺'],
    pose_smoking: !!checks['抽烟'],
    pose_yawn: !!checks['打哈欠']
  };
  try {
    const r = await fetch('/api/pose/config', {method:'POST',
      headers:{'Content-Type':'application/json'}, body: JSON.stringify(body)});
    const d = await r.json();
    alert(d.ok ? '已保存' : '保存失败');
  } catch (e) { alert('保存失败'); }
}

/* ================= 继电器动作记录 ================= */
async function loadActions() {
  try {
    const r = await fetch('/api/relay/actions');
    const d = await r.json();
    const items = d.items || [];
    document.getElementById('actionCount').textContent = items.length + '条';
    const tbl = document.getElementById('actionTbl');
    const empty = document.getElementById('actionEmpty');
    if (!items.length) {
      tbl.innerHTML = '<tr><th>时间</th><th>来源</th><th>说明</th><th>输出通道</th></tr>';
      empty.style.display = 'flex';
      return;
    }
    empty.style.display = 'none';
    const srcColor = { '围栏报警': '#e94560', '输入联动': '#3498db', '手动': '#888' };
    tbl.innerHTML = '<tr><th style="width:150px">时间</th><th style="width:90px">来源</th><th>说明</th><th style="width:140px">输出通道</th></tr>' +
      items.map(a => `
      <tr>
        <td style="color:#888">${a.timestamp}</td>
        <td style="color:${srcColor[a.source] || '#aaa'}">${a.source}</td>
        <td style="text-align:left">${a.detail}</td>
        <td>${a.channels.split(',').map(c => aliasLabel(c)).join(', ')}</td>
      </tr>`).join('');
  } catch (e) {}
}
async function clearActionHistory() {
  if (!confirm('清空所有动作记录?')) return;
  try {
    await fetch('/api/relay/actions/clear', {method: 'POST'});
    loadActions();
  } catch (e) {}
}

/* ================= 继电器控制 ================= */
let rlyX = Array(8).fill(0);
let rlyY = Array(8).fill(0);
let rlyCfgLoaded = false;
let rlyModesLoaded = false;
let savedModes = Array.from({length: 8}, () => ({mode: 'normal', interval: 1}));
let testingIdx = -1;
let rlyNx = 0, rlyNy = 0;
let rlyAlias = {};          // {x1:'大门雷达', y02:'声光报警器', ...}
let aliasSig = '';
let lastBindings = {};

function aliasOf(key) {
  const a = rlyAlias[key];
  return a ? a : '';
}
function aliasLabel(key) {
  const a = aliasOf(key);
  return a ? (key.toUpperCase() + ' ' + a) : key.toUpperCase();
}

function renderAliasTable() {
  const el = document.getElementById('aliasTbl');
  if (!el) return;
  let html = '<tr><th style="width:60px">输入</th><th>别名</th><th style="width:60px">输出</th><th>别名</th></tr>';
  for (let i = 1; i <= Math.max(rlyNx || 8, rlyNy || 8); i++) {
    const xk = 'x' + i;
    const yk = 'y' + String(i).padStart(2, '0');
    html += `<tr>
      <td style="color:#aaa">X${i}</td>
      <td style="text-align:left"><input type="text" class="al-in" data-k="${xk}" value="${rlyAlias[xk]||''}" style="width:95%" placeholder="X${i}"></td>
      <td style="color:#aaa">${i <= (rlyNy||8) ? 'Y'+i : ''}</td>
      <td style="text-align:left">${i <= (rlyNy||8) ? `<input type="text" class="al-in" data-k="${yk}" value="${rlyAlias[yk]||''}" style="width:95%" placeholder="Y${i}">` : ''}</td>
    </tr>`;
  }
  el.innerHTML = html;
}

async function saveAliases() {
  const out = {};
  document.querySelectorAll('.al-in').forEach(inp => {
    out[inp.dataset.k] = inp.value.trim();
  });
  try {
    const r = await fetch('/api/relay/aliases', {
      method:'POST', headers:{'Content-Type':'application/json'},
      body: JSON.stringify(out)
    });
    const d = await r.json();
    alert(d.ok ? '别名已保存' : '保存失败');
  } catch (e) { alert('保存失败'); }
  loadRelayStatus();
}

function ensureTables(nx, ny) {
  if (!document.getElementById('ymodeTbl').children.length ||
      !document.getElementById('bindTbl').children.length ||
      nx !== rlyNx || ny !== rlyNy) {
    rlyNx = nx; rlyNy = ny;
    renderYTable(ny);
    renderBindTable(lastBindings, nx, ny);
  }
}

function renderYTable(ny) {
  const el = document.getElementById('ymodeTbl');
  let html = '<tr><th>通道</th><th>状态</th><th>输出模式</th><th>间隔(秒)</th><th>操作</th></tr>';
  for (let i = 1; i <= ny; i++) {
    const s = savedModes[i-1] || {mode:'normal', interval:1};
    const yk = 'y' + String(i).padStart(2, '0');
    const al = aliasOf(yk);
    html += `<tr>
      <td style="color:#aaa">Y${i}${al ? `<div style="font-size:10px;color:#8892a8">${al}</div>` : ''}</td>
      <td><button class="btn btn-outline" id="ybtn${i}" style="width:56px;padding:4px 0" onclick="toggleY(${i})">关</button></td>
      <td><select id="ymsel${i}">
        <option value="normal" ${s.mode==='normal'?'selected':''}>正常</option>
        <option value="cycle" ${s.mode==='cycle'?'selected':''}>周期交替</option>
      </select></td>
      <td><input type="number" id="ymin${i}" step="0.1" min="0.1" max="3600" value="${s.interval}"></td>
      <td><button class="btn btn-outline" id="ytest${i}" style="padding:4px 10px" onclick="testY(${i})">测试</button></td>
    </tr>`;
  }
  el.innerHTML = html;
}

async function postMode(items) {
  const r = await fetch('/api/relay/mode', {
    method:'POST', headers:{'Content-Type':'application/json'},
    body: JSON.stringify({items})
  });
  return r.json();
}

async function saveYModes() {
  const items = [];
  for (let i = 1; i <= rlyNy; i++) {
    const sel = document.getElementById('ymsel' + i);
    if (!sel) continue;
    items.push({
      channel: 'y' + String(i).padStart(2, '0'),
      mode: sel.value,
      interval_sec: parseFloat(document.getElementById('ymin' + i).value) || 1
    });
  }
  try {
    const d = await postMode(items);
    if (d.ok) {
      for (let i = 1; i <= items.length; i++)
        savedModes[i-1] = {mode: items[i-1].mode, interval: items[i-1].interval_sec};
      alert('输出模式已保存');
    } else alert('保存失败');
  } catch (e) { alert('保存失败'); }
  loadRelayStatus();
}

async function testY(i) {
  if (testingIdx >= 0) return;
  testingIdx = i;
  const btn = document.getElementById('ytest' + i);
  const ch = 'y' + String(i).padStart(2, '0');
  const itv = parseFloat(document.getElementById('ymin' + i).value) || 1;
  btn.textContent = '测试中';
  try {
    await postMode([{channel: ch, mode: 'cycle', interval_sec: itv}]);
    setTimeout(async () => {
      await postMode([{channel: ch, mode: savedModes[i-1].mode,
                       interval_sec: savedModes[i-1].interval}]);
      btn.textContent = '测试';
      testingIdx = -1;
      loadRelayStatus();
    }, 6000);
  } catch (e) { btn.textContent = '测试'; testingIdx = -1; }
}


function renderBindTable(bindings, nx, ny) {
  lastBindings = bindings || {};
  const el = document.getElementById('bindTbl');
  ny = ny || 8; nx = nx || 8;
  let html = '<tr><th>X</th><th>信号</th>';
  for (let y = 1; y <= ny; y++) {
    const al = aliasOf('y' + String(y).padStart(2, '0'));
    html += `<th title="${al}">Y${y}${al ? `<div style="font-size:10px;color:#8892a8;max-width:70px;overflow:hidden;text-overflow:ellipsis">${al}</div>` : ''}</th>`;
  }
  html += '</tr>';
  for (let x = 1; x <= nx; x++) {
    html += `<tr><td style="color:#aaa">X${x}</td><td><span class="led" id="xled${x}"></span></td>`;
    const bound = lastBindings['x' + x] || [];
    for (let y = 1; y <= ny; y++) {
      const ch = 'y' + String(y).padStart(2, '0');
      html += `<td><input type="checkbox" class="bind-ck" data-x="${x}" value="${ch}" ${bound.includes(ch)?'checked':''}></td>`;
    }
    html += '</tr>';
  }
  el.innerHTML = html;
}

function updateRelayView(d) {
  document.getElementById('relayOnline').innerHTML =
    '设备状态: <span style="color:' + (d.online ? '#27ae60' : '#e74c3c') + '">' +
    (d.online ? '在线' : '离线') + '</span>';
  if (!rlyCfgLoaded && d.host) {
    document.getElementById('rlyHost').value = d.host;
    document.getElementById('rlyPort').value = d.port;
    document.getElementById('rlyAddr').value = d.device_addr;
    document.getElementById('rlyPulse').value = d.pulse_sec;
    if (d.rearm_sec !== undefined)
      document.getElementById('rlyRearm').value = d.rearm_sec;
    if (d.alarm_max_sec !== undefined)
      document.getElementById('rlyMaxSec').value = d.alarm_max_sec;
    rlyCfgLoaded = true;
  }
  ensureTables(d.nx || 8, d.ny || 8);
  const newAliasSig = JSON.stringify(d.alias || {});
  if (newAliasSig !== aliasSig) {
    rlyAlias = d.alias || {};
    aliasSig = newAliasSig;
    renderYTable(rlyNy);
    renderBindTable(lastBindings, rlyNx, rlyNy);
    renderAliasTable();
    rlyModesLoaded = false;   // 重渲染后回填一次模式
  }
  rlyX = d.x || rlyX;
  rlyY = d.y || rlyY;
  for (let i = 0; i < (d.nx || 8); i++) {
    const led = document.getElementById('xled' + (i+1));
    if (led) led.className = 'led' + (rlyX[i] ? ' on' : '');
  }
  for (let i = 0; i < (d.ny || 8); i++) {
    const btn = document.getElementById('ybtn' + (i+1));
    if (btn) {
      const on = !!rlyY[i];
      btn.className = 'btn ' + (on ? 'btn-success' : 'btn-outline');
      btn.textContent = on ? '开' : '关';
      btn.style.opacity = d.online ? 1 : .5;
    }
    if (!rlyModesLoaded && d.ymode) {
      const sel = document.getElementById('ymsel' + (i+1));
      const inp = document.getElementById('ymin' + (i+1));
      if (sel) {
        sel.value = d.ymode[i] === 'cycle' ? 'cycle' : 'normal';
        if (inp && d.ycyc !== undefined && d.ycyc[i] !== undefined)
          inp.value = d.ycyc[i];
        savedModes[i] = {mode: sel.value,
                         interval: parseFloat(inp ? inp.value : 1) || 1};
        if (i === (d.ny || 8) - 1) rlyModesLoaded = true;
      }
    }
  }
}

async function loadRelayStatus() {
  try {
    const r = await fetch('/api/relay/status');
    updateRelayView(await r.json());
  } catch (e) {}
}

async function toggleY(i) {
  if (i > rlyNy) return;
  const ch = 'y' + String(i).padStart(2, '0');
  const next = rlyY[i-1] ? 0 : 1;
  try {
    await fetch('/api/relay', {
      method:'POST', headers:{'Content-Type':'application/json'},
      body: JSON.stringify({channel: ch, state: next})
    });
  } catch (e) {}
  loadRelayStatus();
}

async function saveRelayConfig() {
  const body = {
    host: document.getElementById('rlyHost').value.trim(),
    port: parseInt(document.getElementById('rlyPort').value),
    device_addr: parseInt(document.getElementById('rlyAddr').value),
    pulse_sec: parseInt(document.getElementById('rlyPulse').value),
    alarm_max_sec: parseInt(document.getElementById('rlyMaxSec').value),
    rearm_sec: parseInt(document.getElementById('rlyRearm').value)
  };
  try {
    const r = await fetch('/api/relay/config', {
      method:'POST', headers:{'Content-Type':'application/json'},
      body: JSON.stringify(body)
    });
    const d = await r.json();
    alert(d.ok ? '已保存' : '保存失败');
  } catch (e) { alert('保存失败'); }
}

async function loadBindings() {
  try {
    const r = await fetch('/api/relay/bindings');
    const d = await r.json();
    renderBindTable(d, rlyNx || 8, rlyNy || 8);
  } catch (e) {}
}

async function saveBindings() {
  const out = {};
  document.querySelectorAll('.bind-ck:checked').forEach(c => {
    const k = 'x' + c.dataset.x;
    (out[k] = out[k] || []).push(c.value);
  });
  try {
    const r = await fetch('/api/relay/bindings', {
      method:'POST', headers:{'Content-Type':'application/json'},
      body: JSON.stringify(out)
    });
    const d = await r.json();
    alert(d.ok ? '联动绑定已保存' : '保存失败');
  } catch (e) { alert('保存失败'); }
}

/* ================= 检测参数 / 系统设置 ================= */
async function loadSystemOptions() {
  try {
    const r = await fetch('/api/status');
    const d = await r.json();
    if (document.getElementById('sysTargetEnabled')) document.getElementById('sysTargetEnabled').checked = d.target_enabled !== false;
    if (document.getElementById('sysPoseEnabled')) document.getElementById('sysPoseEnabled').checked = d.pose_cfg_enabled !== false;
    if (document.getElementById('sysGridOutput')) document.getElementById('sysGridOutput').value = d.grid_output === false ? 'false' : 'true';
    if (document.getElementById('sysSteelOutput')) document.getElementById('sysSteelOutput').value = d.steel_output === false ? 'false' : 'true';
  } catch (e) {}
  try {
    const r = await fetch('/api/mjpeg/status');
    const d = await r.json();
    if (document.getElementById('sysMjpegEnabled')) document.getElementById('sysMjpegEnabled').value = d.enabled === false ? 'false' : 'true';
  } catch (e) {}
}

async function loadSystemConfig() {
  try {
    const r = await fetch('/api/system');
    const d = await r.json();
    document.getElementById('sysRebootEn').checked = !!d.reboot_enabled;
    if (d.reboot_cycle !== undefined) document.getElementById('sysRebootCycle').value = d.reboot_cycle;
    if (d.reboot_time) document.getElementById('sysRebootTime').value = d.reboot_time;
  } catch (e) {}
}
async function saveSystemOptions() {
  const body = {
    target_enabled: document.getElementById('sysTargetEnabled').checked,
    pose_enabled: document.getElementById('sysPoseEnabled').checked,
    grid_output: document.getElementById('sysGridOutput').value === 'true',
    steel_output: document.getElementById('sysSteelOutput').value === 'true'
  };
  try {
    const r = await fetch('/api/config', {method:'POST', headers:{'Content-Type':'application/json'}, body:JSON.stringify(body)});
    const d = await r.json();
    alert(d.ok ? '系统配置已保存，识别开关重启后生效' : '保存失败');
  } catch (e) { alert('保存失败'); }
}
async function toggleSystemMjpeg() {
  const enabled = document.getElementById('sysMjpegEnabled').value === 'true';
  try {
    await fetch('/api/mjpeg/toggle', {method:'POST', headers:{'Content-Type':'application/json'}, body:JSON.stringify({enabled})});
  } catch (e) {}
}
async function saveSystemConfig() {
  const body = {
    auto_reboot: {
      enabled: document.getElementById('sysRebootEn').checked,
      cycle: Math.max(1, parseInt(document.getElementById('sysRebootCycle').value) || 1),
      time: document.getElementById('sysRebootTime').value || '03:30'
    }
  };
  try {
    const r = await fetch('/api/config', {
      method:'POST', headers:{'Content-Type':'application/json'},
      body: JSON.stringify(body)
    });
    const d = await r.json();
    alert(d.ok ? '已保存' : '保存失败');
  } catch (e) { alert('保存失败'); }
}
async function rebootNow() {
  if (!confirm('确认立即重启设备?')) return;
  try {
    const r = await fetch('/api/reboot', {method:'POST'});
    const d = await r.json();
    alert(d.ok ? '重启命令已发送, 设备即将重启...' : '重启失败');
  } catch (e) {}
}

/* ================= 状态轮询 ================= */
async function loadStatus() {
  try {
    const r = await fetch('/api/status');
    if (r.status === 401) { location.href = '/login'; return; }
    const d = await r.json();
    const badge = document.getElementById('statusBadge');
    badge.className = 'status-badge ' + (d.running ? 'status-on' : 'status-off');
    badge.textContent = d.running ? '在线' : '离线';
    document.getElementById('modelChip').textContent =
      (d.npu || d.model || '-') + ' | NPU';
    syncChannels(d.channels || []);
    applyChannelSize(d);
  } catch (e) {}
}

function applyChannelSize(d) {
  const info = (d.channels || []).find(c => c.id === curChannel);
  if (info && info.width > 0 && info.height > 0 &&
      (info.width !== imgW || info.height !== imgH)) {
    imgW = info.width;
    imgH = info.height;
    updateView();
  }
}
async function loadChannelSize() {
  try {
    const r = await fetch('/api/status');
    applyChannelSize(await r.json());
  } catch (e) {}
}

/* ================= 登录与凭据 ================= */
async function loadAuthInfo() {
  try {
    const r = await fetch('/api/auth/info');
    if (r.status === 401) { location.href = '/login'; return; }
    const d = await r.json();
    document.getElementById('curUser').textContent = d.username || '-';
  } catch (e) {}
}
async function logout() {
  try { await fetch('/api/logout', {method: 'POST'}); } catch (e) {}
  location.href = '/login';
}
async function changePassword() {
  const oldp = document.getElementById('pwdOld').value;
  const nu = document.getElementById('pwdNewUser').value.trim();
  const p1 = document.getElementById('pwdNew1').value;
  const p2 = document.getElementById('pwdNew2').value;
  if (!oldp) { alert('请输入原密码'); return; }
  if (p1 !== p2) { alert('两次输入的新密码不一致'); return; }
  if (!p1) { alert('新密码不能为空'); return; }
  try {
    const r = await fetch('/api/auth/changepwd', {
      method:'POST', headers:{'Content-Type':'application/json'},
      body: JSON.stringify({old_password: oldp, username: nu, new_password: p1})
    });
    if (r.status === 401) { location.href = '/login'; return; }
    const d = await r.json();
    if (d.ok) {
      document.getElementById('pwdOld').value = '';
      document.getElementById('pwdNew1').value = '';
      document.getElementById('pwdNew2').value = '';
      document.getElementById('pwdNewUser').value = '';
      loadAuthInfo();
      alert('凭据已更新, 其他已登录会话将失效');
    } else alert(d.error || '修改失败');
  } catch (e) { alert('请求失败'); }
}

/* ================= 启动 ================= */
switchPage('monitor');
renderTargets();
ensureTables(8, 8);
renderChannelList();
loadStatus();
loadFences();
loadAuthInfo();
loadSystemOptions();
loadSystemConfig();
loadTargetConfig();
loadPoseConfig();
loadRelayStatus();
loadBindings();
setInterval(loadStatus, 5000);
setInterval(() => { if (curPage === 'alarm') loadAllAlarms(); }, 10000);
setInterval(loadRelayStatus, 1000);
</script>
</body>
</html>