:root{
  /* 蓝白政务配色 */
  --brand:#1668dc;
  --brand-2:#2a7ff0;
  --brand-3:#0b3a75;
  --side-w:224px; --top-h:60px;
  --ok:#18a058; --warn:#e6a23c; --err:#e34d59; --purple:#6f5ce0;
  --bg:#eef3f9;
  --card:#fff;
  --bd:#e3ebf5;
  --txt:#1f2d3d; --sub:#7a8ba3;
  --shadow:0 2px 12px rgba(16,58,110,.08);
  --shadow-lg:0 8px 28px rgba(16,58,110,.16);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%;overflow:hidden}
body{font:14px/1.6 "Microsoft YaHei","PingFang SC",Arial,sans-serif;background:var(--bg);color:var(--txt)}
a{color:var(--brand);text-decoration:none}
.boot{padding:60px;text-align:center;color:var(--sub)}

/* ---------------- 布局（侧栏固定，不随内容滚动） ---------------- */
.layout{display:flex;height:100vh;overflow:hidden}
.side{
  width:var(--side-w);flex-shrink:0;height:100vh;position:relative;z-index:20;
  display:flex;flex-direction:column;overflow:hidden;
  background:linear-gradient(180deg,#0b3a75 0%,#12457f 45%,#14539a 100%);
  box-shadow:2px 0 12px rgba(6,32,66,.18);
  transition:width .22s ease;
}
.side.collapsed{width:64px}
.side::after{content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 60% at 50% 0%,rgba(255,255,255,.10),transparent 60%)}

.brand{height:var(--top-h);display:flex;align-items:center;gap:10px;padding:0 16px;
  color:#fff;font-weight:700;font-size:15px;white-space:nowrap;overflow:hidden;flex-shrink:0;
  border-bottom:1px solid rgba(255,255,255,.10)}
.brand .logo{min-width:30px;height:30px;padding:0 8px;border-radius:8px;flex-shrink:0;
  background:linear-gradient(135deg,#4d9bff,#1668dc);display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;letter-spacing:.5px;box-shadow:0 3px 10px rgba(0,0,0,.25)}
.brand .txt{overflow:hidden;text-overflow:ellipsis;letter-spacing:1px}

.side .el-menu{border-right:none;flex:1;overflow-x:hidden;overflow-y:auto;background:transparent;
  --el-menu-bg-color:transparent;
  --el-menu-text-color:#c3daf6;
  --el-menu-active-color:#ffffff;
  --el-menu-hover-bg-color:rgba(255,255,255,.10);
  --el-menu-item-height:46px;
  padding:8px 0}
.side .el-menu-item{
  margin:3px 10px;border-radius:8px;height:46px;line-height:46px;
  padding-left:12px !important;position:relative;
  transition:background .2s,color .2s}
.side .el-menu-item:hover{background:rgba(255,255,255,.10);color:#fff}
.side .el-menu-item.is-active{
  background:linear-gradient(90deg,rgba(58,140,255,.55),rgba(58,140,255,.06));
  color:#fff;font-weight:600}
.side .el-menu-item.is-active::before{
  content:'';position:absolute;left:0;top:11px;bottom:11px;width:3px;border-radius:0 3px 3px 0;background:#7db6ff}
.side .mi{
  width:24px;height:24px;border-radius:6px;flex-shrink:0;margin-right:10px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;background:rgba(255,255,255,.14);color:#dce9fb}
.side .el-menu-item.is-active .mi{background:#1668dc;color:#fff;box-shadow:0 2px 8px rgba(0,0,0,.25)}
.side.collapsed .mi{margin-right:0}

.side-foot{color:#8fb2dd;font-size:11px;padding:10px 16px;white-space:nowrap;overflow:hidden;flex-shrink:0;
  border-top:1px solid rgba(255,255,255,.10);letter-spacing:1px}

.main{flex:1;display:flex;flex-direction:column;min-width:0;height:100vh}
.topbar{height:var(--top-h);background:#fff;border-bottom:1px solid var(--bd);flex-shrink:0;
  display:flex;align-items:center;justify-content:space-between;padding:0 18px;
  box-shadow:0 1px 6px rgba(16,58,110,.05);position:relative;z-index:10}
.topbar::before{content:'';position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,#1668dc,#2a7ff0,#5aa9ff)}
.topbar .left{display:flex;align-items:center;gap:12px}
.topbar .right{display:flex;align-items:center;gap:10px}
.crumb{font-size:16px;font-weight:600;color:var(--txt)}
.crumb::before{content:'';display:inline-block;width:3px;height:14px;background:var(--brand);
  border-radius:2px;margin-right:8px;vertical-align:-2px}
.content{flex:1;overflow-y:auto;overflow-x:hidden;padding:16px;background:var(--bg)}
.user{cursor:pointer;color:var(--txt)}

/* ---------------- 卡片 / 面板 ---------------- */
.panel{background:var(--card);border:1px solid var(--bd);border-radius:12px;padding:16px 18px;
  margin-bottom:16px;box-shadow:var(--shadow);transition:box-shadow .25s ease,transform .25s ease}
.panel:hover{box-shadow:var(--shadow-lg)}
.panel > h3{margin:0 0 14px;font-size:16px;font-weight:600;display:flex;align-items:center;gap:8px;
  padding-left:10px;border-left:3px solid var(--brand);line-height:1.2}
.panel > h3 .sub{font-weight:400;font-size:12px;color:var(--sub)}
.toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.flex-spacer{flex:1}
.muted{color:var(--sub)}
.mono{font-family:Consolas,Monaco,monospace;font-size:12px}
.nowrap{white-space:nowrap}

/* ---------------- 统计卡 ---------------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin-bottom:16px}
.stat{position:relative;overflow:hidden;background:#fff;border:1px solid var(--bd);border-radius:12px;
  padding:16px;display:flex;align-items:center;gap:14px;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease}
.stat:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.stat::after{content:'';position:absolute;right:-24px;top:-24px;width:76px;height:76px;border-radius:50%;
  background:rgba(22,104,220,.06)}
.stat .ic{width:48px;height:48px;border-radius:10px;flex-shrink:0;display:flex;align-items:center;
  justify-content:center;font-size:22px;color:#fff;background:linear-gradient(135deg,#2a7ff0,#1668dc);
  box-shadow:0 4px 12px rgba(22,104,220,.28)}
.stat.g .ic{background:linear-gradient(135deg,#2bb673,#18a058);box-shadow:0 4px 12px rgba(24,160,88,.28)}
.stat.o .ic{background:linear-gradient(135deg,#f0a93a,#e6a23c);box-shadow:0 4px 12px rgba(230,162,60,.28)}
.stat.p .ic{background:linear-gradient(135deg,#8a7af0,#6f5ce0);box-shadow:0 4px 12px rgba(111,92,224,.28)}
.stat.e .ic{background:linear-gradient(135deg,#f2776b,#e34d59);box-shadow:0 4px 12px rgba(227,77,89,.28)}
.stat .n{font-size:24px;font-weight:700;line-height:1.25;color:var(--txt);font-variant-numeric:tabular-nums}
.stat .l{font-size:12px;color:var(--sub)}

/* ---------------- 播放器 / 宫格 ---------------- */
.video-wrap{position:relative;background:#000;border-radius:8px;overflow:hidden}
.video-wrap video{width:100%;height:100%;display:block;background:#000;object-fit:contain}
.video-wrap .ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:#8899aa;font-size:13px;pointer-events:none;background:
  radial-gradient(circle at 50% 40%,#0d1b2a,#000 70%)}
.grid{display:grid;gap:12px}
.grid.n1{grid-template-columns:1fr}
.grid.n4{grid-template-columns:repeat(2,1fr)}
.grid.n9{grid-template-columns:repeat(3,1fr)}
.grid.n16{grid-template-columns:repeat(4,1fr)}
.cell{border:1px solid var(--bd);border-radius:12px;background:#fff;overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--shadow);transition:border-color .2s,box-shadow .2s}
.cell.active{border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,104,220,.16)}
.cell .bar{display:flex;align-items:center;gap:6px;padding:7px 10px;font-size:12px;
  border-bottom:1px solid var(--bd);background:linear-gradient(180deg,#f7fafe,#fff)}
.cell .bar .nm{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cell .stage{position:relative;background:#000}
.cell .stage .video-wrap{border-radius:0}

/* ---------------- 云台 ---------------- */
.ptz-pad{display:grid;grid-template-columns:repeat(3,44px);grid-template-rows:repeat(3,36px);gap:4px;justify-content:center}
.ptz-pad button{cursor:pointer;border:1px solid var(--bd);background:#fff;border-radius:6px;transition:.15s}
.ptz-pad button:hover{border-color:var(--brand);color:var(--brand);background:#f0f6ff}
.ptz-extra{display:flex;gap:6px;justify-content:center;margin-top:8px}

/* ---------------- 地址行 ---------------- */
.url-row{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.url-row .lb{width:76px;color:var(--sub);font-size:12px;flex-shrink:0}
.url-row .el-input{flex:1}

/* ---------------- 登录页 ---------------- */
.login-page{position:relative;height:100vh;overflow:hidden;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#062a55 0%,#0b3a75 40%,#14539a 75%,#1668dc 100%)}
.login-bg{position:absolute;inset:0;z-index:0}
.login-bg canvas{width:100%;height:100%;display:block}
.login-grid{position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:46px 46px;animation:gridMove 24s linear infinite}
@keyframes gridMove{0%{background-position:0 0}100%{background-position:46px 46px}}
.login-glow{position:absolute;border-radius:50%;filter:blur(70px);z-index:1;pointer-events:none}
.login-glow.a{width:440px;height:440px;background:#2a7ff0;left:-100px;top:-120px;opacity:.38;animation:gl1 16s ease-in-out infinite}
.login-glow.b{width:380px;height:380px;background:#37d0ff;right:-90px;bottom:-120px;opacity:.26;animation:gl2 20s ease-in-out infinite}
@keyframes gl1{0%,100%{transform:translate(0,0)}50%{transform:translate(60px,50px)}}
@keyframes gl2{0%,100%{transform:translate(0,0)}50%{transform:translate(-50px,-40px)}}

.login-wrap{position:relative;z-index:3;width:min(1100px,92vw);display:grid;
  grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}

/* 左侧：品牌 + 大数据 */
.login-left{color:#fff}
.brand-mark{display:flex;align-items:center;gap:14px;margin-bottom:22px}
.brand-mark .logo{width:58px;height:58px;border-radius:14px;flex-shrink:0;
  background:linear-gradient(135deg,#5aa9ff,#1668dc);display:flex;align-items:center;justify-content:center;
  font-size:28px;box-shadow:0 10px 30px rgba(0,0,0,.35);animation:pulse 3.2s ease-in-out infinite}
@keyframes pulse{0%,100%{box-shadow:0 10px 30px rgba(0,0,0,.35)}50%{box-shadow:0 10px 44px rgba(90,169,255,.65)}}
.login-title{font-size:36px;font-weight:800;letter-spacing:3px;line-height:1.2;margin:0;
  background:linear-gradient(90deg,#ffffff,#a8d3ff);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent}
.login-en{margin-top:8px;font-size:13px;letter-spacing:2px;color:#9dc4ee;text-transform:uppercase}
.login-desc{margin-top:18px;font-size:14px;line-height:1.9;color:#c9dff8;max-width:480px}
.login-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.login-tags span{font-size:12px;padding:4px 12px;border-radius:20px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);color:#dbeafe}

.data-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px}
.data-cell{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);
  border-radius:12px;padding:12px 14px;backdrop-filter:blur(8px);position:relative;overflow:hidden;
  transition:transform .25s,background .25s}
.data-cell:hover{transform:translateY(-4px);background:rgba(255,255,255,.16)}
.data-cell .v{font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.2;
  text-shadow:0 2px 12px rgba(0,0,0,.25)}
.data-cell .v small{font-size:13px;font-weight:600;margin-left:2px}
.data-cell .k{font-size:11px;color:#b9d6f5;margin-top:4px;letter-spacing:1px}
.data-cell .bar{height:3px;border-radius:2px;background:rgba(255,255,255,.18);margin-top:8px;overflow:hidden}
.data-cell .bar i{display:block;height:100%;border-radius:2px;background:linear-gradient(90deg,#5aa9ff,#37d0ff);
  animation:barFlow 3s ease-in-out infinite}
@keyframes barFlow{0%{width:20%}50%{width:88%}100%{width:35%}}

.wave{display:flex;align-items:flex-end;gap:5px;height:38px;margin-top:24px}
.wave i{width:5px;border-radius:3px;background:linear-gradient(180deg,#8ec5ff,#1668dc);
  animation:wv 1.5s ease-in-out infinite}
@keyframes wv{0%,100%{height:8px;opacity:.6}50%{height:34px;opacity:1}}
.login-note{margin-top:10px;font-size:11px;color:#8fb2dd;letter-spacing:1px}

/* 右侧：悬浮登录卡 */
.login-float{animation:floaty 6s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
.login-card{background:rgba(255,255,255,.97);border-radius:16px;padding:36px 34px 28px;
  box-shadow:0 24px 64px rgba(3,25,55,.42);backdrop-filter:blur(12px);
  animation:cardIn .7s cubic-bezier(.2,.8,.2,1) both;transition:box-shadow .3s,transform .3s}
.login-card:hover{box-shadow:0 30px 76px rgba(3,25,55,.52)}
@keyframes cardIn{from{opacity:0;transform:translateY(30px) scale(.97)}to{opacity:1;transform:none}}
.login-card h2{margin:0 0 6px;font-size:22px;color:var(--txt);font-weight:700}
.login-card .tip{color:var(--sub);font-size:13px;margin-bottom:24px}
.login-field{margin-bottom:18px}
.login-btn{width:100%;height:44px;font-size:16px;letter-spacing:6px;border:none;position:relative;overflow:hidden;
  background:linear-gradient(135deg,#2a7ff0,#1668dc);box-shadow:0 6px 18px rgba(22,104,220,.35)}
.login-btn:hover{background:linear-gradient(135deg,#3d8bfd,#1a72e8)}
.login-btn::after{content:'';position:absolute;top:0;left:-120%;width:60%;height:100%;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.38),transparent);animation:shine 3.4s ease-in-out infinite}
@keyframes shine{0%{left:-120%}60%,100%{left:200%}}
.login-foot{text-align:center;color:var(--sub);font-size:12px;margin-top:16px;line-height:1.7}
.login-shield{display:flex;align-items:center;justify-content:center;gap:6px;color:var(--brand);
  font-size:12px;margin-top:10px}

/* ---------------- 表格小优化 ---------------- */
.el-table{font-size:13px}
.el-table th.el-table__cell{background:#f5f9ff !important;color:#3d5675;font-weight:600}
.tag-ok{color:var(--ok)}.tag-off{color:var(--sub)}
.ch-list{display:flex;flex-wrap:wrap;gap:8px}
.ch-item{display:flex;align-items:center;gap:8px;border:1px solid var(--bd);border-radius:8px;
  padding:6px 10px;background:#fafbfc;transition:.2s}
.ch-item:hover{border-color:var(--brand);background:#f3f8ff}
.ch-item .id{font-family:Consolas,monospace;font-size:12px;color:var(--sub)}
.ch-item .nm{max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------------- 设备卡片（摄像头管理） ---------------- */
.dev-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:14px}
.dev-card{background:#fff;border:1px solid var(--bd);border-radius:12px;box-shadow:var(--shadow);
  overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s}
.dev-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#bcd9f9}
.dev-card.online{border-left:4px solid var(--ok)}
.dev-card.offline{border-left:4px solid #c9d3e0}
.dev-card .hd{display:flex;align-items:center;gap:10px;padding:12px 14px;border-bottom:1px solid var(--bd);
  background:linear-gradient(180deg,#f7fafe,#fff)}
.dev-card .hd .av{width:36px;height:36px;border-radius:9px;flex-shrink:0;display:flex;align-items:center;
  justify-content:center;color:#fff;font-size:17px;background:linear-gradient(135deg,#2a7ff0,#1668dc)}
.dev-card.offline .hd .av{background:linear-gradient(135deg,#a8b6c8,#8494a8)}
.dev-card .hd .tt{flex:1;min-width:0}
.dev-card .hd .nm{font-size:15px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dev-card .hd .id{font-size:11px;color:var(--sub);font-family:Consolas,monospace;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dev-card .bd{padding:12px 14px}
.dev-meta{display:grid;grid-template-columns:1fr 1fr;gap:8px 10px;font-size:12px}
.dev-meta .k{color:var(--sub)}
.dev-meta .v{color:var(--txt);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dev-card .ft{display:flex;gap:8px;padding:10px 14px;border-top:1px solid var(--bd);background:#fafcff}
.dev-chs{margin-top:12px;padding-top:12px;border-top:1px dashed var(--bd)}
.dev-chs .cap{font-size:12px;color:var(--sub);margin-bottom:8px;display:flex;align-items:center;gap:6px}
.ch-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px}
.ch-card{border:1px solid var(--bd);border-radius:8px;padding:8px 10px;background:#fafcff;
  display:flex;flex-direction:column;gap:6px;transition:.2s}
.ch-card:hover{border-color:var(--brand);background:#f2f8ff}
.ch-card .cn{font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ch-card .ci{font-size:11px;color:var(--sub);font-family:Consolas,monospace;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ch-card .ops{display:flex;gap:6px}

/* 预览弹窗：左视频右控制 */
.pv-layout{display:grid;grid-template-columns:1.6fr 1fr;gap:16px}

/* 实时预览页：左通道树 + 中宫格 + 右控制 */
.pv-page{display:grid;grid-template-columns:262px minmax(0,1fr) 320px;gap:16px;align-items:start}
.pv-side,.pv-main,.pv-ctrl{margin-bottom:0}
.pv-side .dev-tree{max-height:calc(100vh - 230px);overflow-y:auto;padding-right:2px}
.pv-main .cell{cursor:pointer}
.pv-ctrl .pv-box{margin-bottom:12px}
.pv-ctrl .cur-nm{font-size:14px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pv-ctrl .cur-id{font-size:11px;color:var(--sub);margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 通道树 */
.dev-node{margin-bottom:6px}
.dn-hd{display:flex;align-items:center;gap:6px;padding:6px 8px;border-radius:8px;cursor:pointer;
  background:#f7fafe;border:1px solid var(--bd);transition:.2s}
.dn-hd:hover{border-color:var(--brand);background:#f0f6ff}
.dn-hd .ar{width:12px;color:var(--sub);font-size:11px}
.dn-hd .nm{flex:1;min-width:0;font-size:13px;font-weight:600;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dn-chs{padding:6px 0 6px 14px}
.dn-ch{display:flex;align-items:center;gap:6px;padding:5px 8px;border-radius:6px;transition:.2s}
.dn-ch:hover{background:#f0f6ff}
.dn-ch.on{background:#e8f3ff}
.dn-ch .dot{width:7px;height:7px;border-radius:50%;background:#c9d3e0;flex-shrink:0}
.dn-ch .dot.on{background:var(--ok);box-shadow:0 0 0 3px rgba(24,160,88,.18)}
.dn-ch .cn{flex:1;min-width:0;font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dn-ch .ops{display:flex;gap:2px;flex-shrink:0}
.pv-left .video-wrap{aspect-ratio:16/9}
.pv-right{display:flex;flex-direction:column;gap:12px}
.pv-box{border:1px solid var(--bd);border-radius:10px;padding:12px;background:#fafcff}
.pv-box .t{font-size:13px;font-weight:600;margin-bottom:10px;padding-left:8px;border-left:3px solid var(--brand);line-height:1.2}

/* ---------------- 日志 ---------------- */
.log-line{display:flex;gap:10px;padding:6px 0;border-bottom:1px dashed #eef1f5;font-size:12px}
.log-line .t{color:var(--sub);width:150px;flex-shrink:0}

/* ---------------- 滚动条 ---------------- */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:#c6d5e6;border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:#a9bdd6}
::-webkit-scrollbar-track{background:transparent}
.side ::-webkit-scrollbar{width:0}

/* ---------------- 响应式 ---------------- */
@media (max-width:1400px){
  .pv-page{grid-template-columns:250px minmax(0,1fr)}
  .pv-ctrl{grid-column:1/-1}
}
@media (max-width:1100px){
  .pv-layout{grid-template-columns:1fr}
  .pv-page{grid-template-columns:1fr}
  .pv-side .dev-tree{max-height:none}
}
@media (max-width:960px){
  .login-wrap{grid-template-columns:1fr;gap:26px;width:min(520px,92vw)}
  .login-left{text-align:center}
  .brand-mark,.login-tags,.wave{justify-content:center}
  .login-desc{margin-left:auto;margin-right:auto}
  .data-row{grid-template-columns:repeat(2,1fr)}
  .login-title{font-size:28px}
  .login-float{animation:none}
}
@media (max-width:900px){
  .side{width:64px}
  .brand .txt{display:none}
  .side-foot{display:none}
  .grid.n4,.grid.n9,.grid.n16{grid-template-columns:1fr}
  .content{padding:12px}
}
@media (max-width:600px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .dev-grid{grid-template-columns:1fr}
}