:root {
  --bg: #060b14;
  --bg-2: #0a1220;
  --panel: rgba(14, 24, 40, 0.78);
  --panel-solid: #0f1a2b;
  --line: rgba(64, 128, 200, 0.18);
  --line-strong: rgba(64, 168, 255, 0.42);
  --txt: #e6eefb;
  --txt-2: #93a7c4;
  --txt-3: #5f7391;
  --blue: #2f9bff;
  --cyan: #22d3ee;
  --green: #2ee6a8;
  --amber: #ffb020;
  --red: #ff4d5e;
  --red-soft: rgba(255, 77, 94, 0.14);
  --purple: #a78bfa;
  --radius: 10px;
  --mono: "SF Mono", "JetBrains Mono", Consolas, "Roboto Mono", monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background:
    radial-gradient(1200px 600px at 18% -10%, rgba(47, 155, 255, 0.16), transparent 60%),
    radial-gradient(900px 500px at 85% 0%, rgba(34, 211, 238, 0.10), transparent 55%),
    var(--bg);
  color: var(--txt);
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  font-size: 13px;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image: linear-gradient(rgba(64, 128, 200, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(64, 128, 200, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 30%, transparent 85%);
}

/* ---------- 顶栏 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 18px;
  padding: 12px 22px;
  background: linear-gradient(180deg, rgba(8, 15, 26, 0.96), rgba(8, 15, 26, 0.78));
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 9px; flex: none;
  background: linear-gradient(140deg, #1f6feb, #22d3ee 70%);
  display: grid; place-items: center; box-shadow: 0 0 22px rgba(47, 155, 255, 0.4);
}
.brand-mark svg { width: 21px; height: 21px; }
.brand-title { font-size: 15px; font-weight: 600; letter-spacing: 0.3px; white-space: nowrap; }
.brand-sub { font-size: 11px; color: var(--txt-3); margin-top: 2px; letter-spacing: 0.5px; white-space: nowrap; }
.brand-badge {
  font-size: 10px; padding: 2px 7px; border-radius: 20px; font-family: var(--mono);
  color: var(--cyan); border: 1px solid rgba(34, 211, 238, 0.35); background: rgba(34, 211, 238, 0.08);
}

.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 11px; border-radius: 20px; font-size: 11.5px;
  border: 1px solid var(--line); background: rgba(255, 255, 255, 0.03);
  color: var(--txt-2); white-space: nowrap;
}
.pill b { color: var(--txt); font-weight: 600; font-family: var(--mono); }
.pill.on { border-color: rgba(46, 230, 168, 0.4); color: var(--green); background: rgba(46, 230, 168, 0.08); }
.pill.off { border-color: rgba(255, 77, 94, 0.4); color: var(--red); background: var(--red-soft); }
.dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; box-shadow: 0 0 8px currentColor; }
.dot.pulse { animation: pulse 1.6s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: .35; transform: scale(.7); } }

.spacer { flex: 1; }
.clock { font-family: var(--mono); font-size: 12px; color: var(--txt-2); text-align: right; line-height: 1.35; }
.clock b { color: var(--txt); font-weight: 500; font-size: 13px; }

/* ---------- 布局 ---------- */
.wrap { position: relative; z-index: 1; padding: 16px 22px 40px; }

.kpi-row { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-bottom: 14px; }
.kpi {
  position: relative; overflow: hidden;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 13px 15px 12px; backdrop-filter: blur(8px);
}
.kpi::after {
  content: ""; position: absolute; left: 0; top: 0; width: 3px; height: 100%;
  background: var(--accent, var(--blue)); opacity: .85;
}
.kpi-label { font-size: 11.5px; color: var(--txt-3); display: flex; align-items: center; gap: 6px; letter-spacing: .3px; }
.kpi-value { font-family: var(--mono); font-size: 27px; font-weight: 600; line-height: 1.25; margin-top: 5px; letter-spacing: -0.5px; }
.kpi-value small { font-size: 12px; color: var(--txt-3); font-weight: 400; margin-left: 3px; letter-spacing: 0; }
.kpi-foot { font-size: 11px; color: var(--txt-3); margin-top: 4px; display: flex; gap: 8px; align-items: center; }
.kpi-foot .up { color: var(--green); } .kpi-foot .bad { color: var(--red); }

.grid-main { display: grid; grid-template-columns: 300px 1fr 340px; gap: 14px; align-items: start; }
.col { display: flex; flex-direction: column; gap: 14px; }

.panel {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  backdrop-filter: blur(8px); overflow: hidden;
}
.panel-head {
  display: flex; align-items: center; gap: 9px; padding: 11px 14px;
  border-bottom: 1px solid var(--line); background: linear-gradient(90deg, rgba(47, 155, 255, 0.07), transparent 70%);
}
.panel-head h2 { font-size: 12.5px; font-weight: 600; letter-spacing: .4px; color: var(--txt); }
.panel-head .tag {
  font-size: 10px; font-family: var(--mono); color: var(--txt-3);
  border: 1px solid var(--line); padding: 1px 6px; border-radius: 4px;
}
.panel-head .right { margin-left: auto; display: flex; gap: 6px; align-items: center; }
.panel-body { padding: 12px 14px; }

/* ---------- 链路拓扑 ---------- */
.topo { display: flex; flex-direction: column; gap: 0; }
.node {
  display: flex; align-items: center; gap: 10px; padding: 9px 11px;
  border: 1px solid var(--line); border-radius: 8px; background: rgba(255,255,255,.018);
  position: relative;
}
.node .ico { width: 26px; height: 26px; border-radius: 7px; display: grid; place-items: center; flex: none;
  background: rgba(47,155,255,.12); color: var(--blue); font-size: 13px; }
.node .nm { font-size: 12px; font-weight: 500; }
.node .st { font-size: 10.5px; color: var(--txt-3); font-family: var(--mono); margin-top: 1px; }
.node .led { margin-left: auto; width: 8px; height: 8px; border-radius: 50%; }
.link { height: 18px; width: 2px; margin-left: 24px; background: linear-gradient(180deg, var(--line-strong), transparent); position: relative; }
.link.ok::after { content: ""; position: absolute; left: -2px; top: 0; width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); animation: flow 1.8s linear infinite; }
@keyframes flow { 0% { top: 0; opacity: 0; } 20% { opacity: 1; } 100% { top: 14px; opacity: 0; } }

/* ---------- 图表 ---------- */
.chart-wrap { position: relative; }
.chart-svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart-legend { display: flex; gap: 14px; font-size: 10.5px; color: var(--txt-3); flex-wrap: wrap; }
.chart-legend i { width: 8px; height: 8px; border-radius: 2px; display: inline-block; margin-right: 5px; }

/* ---------- 表格 ---------- */
.tbl { width: 100%; border-collapse: collapse; font-size: 12px; }
.tbl th {
  text-align: left; font-weight: 500; color: var(--txt-3); font-size: 10.5px;
  padding: 7px 10px; border-bottom: 1px solid var(--line); letter-spacing: .5px; white-space: nowrap;
  position: sticky; top: 0; background: #0c1626; z-index: 2;
}
.tbl td { padding: 8px 10px; border-bottom: 1px solid rgba(64,128,200,.08); vertical-align: middle; }
.tbl tbody tr { cursor: pointer; transition: background .12s; }
.tbl tbody tr:hover { background: rgba(47, 155, 255, 0.07); }
.tbl tbody tr.active { background: rgba(47, 155, 255, 0.12); }
.mono { font-family: var(--mono); font-size: 11.5px; }

.chip {
  display: inline-flex; align-items: center; gap: 5px; padding: 1px 7px; border-radius: 4px;
  font-size: 10.5px; font-family: var(--mono); white-space: nowrap; border: 1px solid transparent;
}
.chip.green { color: var(--green); background: rgba(46,230,168,.1); border-color: rgba(46,230,168,.28); }
.chip.red { color: var(--red); background: var(--red-soft); border-color: rgba(255,77,94,.3); }
.chip.amber { color: var(--amber); background: rgba(255,176,32,.1); border-color: rgba(255,176,32,.3); }
.chip.blue { color: var(--blue); background: rgba(47,155,255,.1); border-color: rgba(47,155,255,.3); }
.chip.gray { color: var(--txt-3); background: rgba(255,255,255,.04); border-color: var(--line); }
.chip.purple { color: var(--purple); background: rgba(167,139,250,.1); border-color: rgba(167,139,250,.3); }

/* ---------- 设备列表 ---------- */
.dev-item {
  padding: 10px 12px; border-bottom: 1px solid rgba(64,128,200,.08); cursor: pointer;
  transition: background .12s; position: relative;
}
.dev-item:hover { background: rgba(47,155,255,.06); }
.dev-item.active { background: rgba(47,155,255,.12); }
.dev-item.active::before { content: ""; position: absolute; left: 0; top: 8px; bottom: 8px; width: 2px; background: var(--blue); }
.dev-top { display: flex; align-items: center; gap: 7px; }
.dev-name { font-size: 12px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dev-meta { font-size: 10.5px; color: var(--txt-3); font-family: var(--mono); margin-top: 3px; display: flex; gap: 8px; }
.hb-bar { height: 3px; border-radius: 2px; background: rgba(255,255,255,.06); margin-top: 7px; overflow: hidden; }
.hb-bar i { display: block; height: 100%; border-radius: 2px; transition: width .4s; }

/* ---------- 报文流 ---------- */
.msg {
  border-bottom: 1px solid rgba(64,128,200,.08); padding: 8px 12px; cursor: pointer; font-size: 11.5px;
}
.msg:hover { background: rgba(47,155,255,.05); }
.msg.err { background: rgba(255,77,94,.05); }
.msg-head { display: flex; align-items: center; gap: 8px; }
.msg-topic { font-family: var(--mono); font-size: 11px; color: var(--txt-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.msg-time { font-family: var(--mono); font-size: 10px; color: var(--txt-3); margin-left: auto; flex: none; }
.msg-body {
  margin-top: 6px; background: #060d17; border: 1px solid var(--line); border-radius: 6px;
  padding: 9px 10px; font-family: var(--mono); font-size: 10.5px; line-height: 1.55;
  max-height: 260px; overflow: auto; white-space: pre; color: #9fb4d0;
}
.msg-issues { margin-top: 5px; font-size: 10.5px; color: var(--red); display: flex; flex-direction: column; gap: 2px; }

/* JSON 着色 */
.j-key { color: #7cc4ff; } .j-str { color: #8ee6b0; } .j-num { color: #ffc46b; }
.j-bool { color: #c792ea; } .j-null { color: #6b7c94; }

/* ---------- 报警 ---------- */
.alarm {
  display: flex; gap: 9px; padding: 9px 11px; border-bottom: 1px solid rgba(64,128,200,.08);
  cursor: pointer; transition: background .12s;
}
.alarm:hover { background: rgba(255,255,255,.03); }
.alarm .lv {
  width: 30px; flex: none; height: 30px; border-radius: 7px; display: grid; place-items: center;
  font-family: var(--mono); font-size: 10.5px; font-weight: 700;
}
.alarm .lv.P0 { background: rgba(255,77,94,.16); color: var(--red); box-shadow: 0 0 0 1px rgba(255,77,94,.35) inset; }
.alarm .lv.P1 { background: rgba(255,176,32,.14); color: var(--amber); box-shadow: 0 0 0 1px rgba(255,176,32,.3) inset; }
.alarm .lv.P2 { background: rgba(47,155,255,.12); color: var(--blue); box-shadow: 0 0 0 1px rgba(47,155,255,.28) inset; }
.alarm .t { font-size: 12px; font-weight: 500; display: flex; align-items: center; gap: 6px; }
.alarm .s { font-size: 10.5px; color: var(--txt-3); margin-top: 2px; font-family: var(--mono); }
.alarm.closed { opacity: .42; }

/* ---------- 通用 ---------- */
.tabs { display: flex; gap: 4px; }
.tab {
  padding: 5px 11px; border-radius: 6px; font-size: 11.5px; cursor: pointer; color: var(--txt-2);
  border: 1px solid transparent; transition: all .15s; user-select: none;
}
.tab:hover { color: var(--txt); background: rgba(255,255,255,.04); }
.tab.on { color: var(--blue); background: rgba(47,155,255,.12); border-color: rgba(47,155,255,.3); }

.btn {
  display: inline-flex; align-items: center; gap: 5px; padding: 6px 12px; border-radius: 7px;
  font-size: 11.5px; cursor: pointer; border: 1px solid var(--line-strong);
  background: rgba(47,155,255,.1); color: var(--blue); transition: all .15s; font-family: inherit;
}
.btn:hover { background: rgba(47,155,255,.2); }
.btn.ghost { background: transparent; border-color: var(--line); color: var(--txt-2); }
.btn.ghost:hover { color: var(--txt); border-color: var(--line-strong); }
.btn.danger { border-color: rgba(255,77,94,.4); background: var(--red-soft); color: var(--red); }
.btn:disabled { opacity: .4; cursor: not-allowed; }

.empty { text-align: center; color: var(--txt-3); font-size: 11.5px; padding: 26px 10px; }

.scroll { overflow-y: auto; }
.scroll::-webkit-scrollbar { width: 7px; height: 7px; }
.scroll::-webkit-scrollbar-thumb { background: rgba(64,128,200,.25); border-radius: 4px; }
.scroll::-webkit-scrollbar-thumb:hover { background: rgba(64,128,200,.45); }
.scroll::-webkit-scrollbar-track { background: transparent; }

/* ---------- 详情抽屉 ---------- */
.drawer-mask {
  position: fixed; inset: 0; background: rgba(3, 7, 13, .62); backdrop-filter: blur(2px);
  z-index: 90; opacity: 0; pointer-events: none; transition: opacity .22s;
}
.drawer-mask.on { opacity: 1; pointer-events: auto; }
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: 560px; max-width: 94vw; z-index: 91;
  background: #0a1220; border-left: 1px solid var(--line-strong);
  transform: translateX(100%); transition: transform .26s cubic-bezier(.4,0,.2,1);
  display: flex; flex-direction: column; box-shadow: -20px 0 60px rgba(0,0,0,.5);
}
.drawer.on { transform: none; }
.drawer-head { padding: 14px 18px; border-bottom: 1px solid var(--line); display: flex; align-items: flex-start; gap: 12px; }
.drawer-body { flex: 1; overflow-y: auto; padding: 16px 18px 40px; }

.kv { display: grid; grid-template-columns: 96px 1fr; gap: 7px 10px; font-size: 12px; }
.kv dt { color: var(--txt-3); font-size: 11px; }
.kv dd { font-family: var(--mono); font-size: 11.5px; word-break: break-all; }

.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.metric {
  background: rgba(255,255,255,.025); border: 1px solid var(--line); border-radius: 8px; padding: 9px 10px;
}
.metric .l { font-size: 10px; color: var(--txt-3); }
.metric .v { font-family: var(--mono); font-size: 15px; margin-top: 3px; }
.metric .v small { font-size: 10px; color: var(--txt-3); }

.section-title { font-size: 11px; color: var(--txt-3); letter-spacing: 1px; margin: 16px 0 8px; text-transform: uppercase; display: flex; align-items: center; gap: 8px; }
.section-title::after { content: ""; flex: 1; height: 1px; background: var(--line); }

/* Toast */
.toast-wrap { position: fixed; top: 70px; right: 22px; z-index: 200; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: #101c2e; border: 1px solid var(--line-strong); border-left: 3px solid var(--blue);
  border-radius: 7px; padding: 9px 13px; font-size: 11.5px; box-shadow: 0 8px 30px rgba(0,0,0,.45);
  animation: slideIn .22s ease; min-width: 220px; max-width: 340px;
}
.toast.err { border-left-color: var(--red); }
.toast.warn { border-left-color: var(--amber); }
.toast.ok { border-left-color: var(--green); }
@keyframes slideIn { from { opacity: 0; transform: translateX(20px); } }

.big-alarm {
  position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%) scale(.92); z-index: 150;
  background: linear-gradient(160deg, #2a0d13, #1a0a10); border: 1px solid rgba(255,77,94,.5);
  border-radius: 14px; padding: 22px 26px; width: 420px; max-width: 92vw;
  box-shadow: 0 0 80px rgba(255,77,94,.35), 0 30px 80px rgba(0,0,0,.6);
  opacity: 0; pointer-events: none; transition: all .25s cubic-bezier(.4,0,.2,1);
}
.big-alarm.on { opacity: 1; pointer-events: auto; transform: translate(-50%, -50%) scale(1); }
.big-alarm h3 { font-size: 16px; color: var(--red); display: flex; align-items: center; gap: 9px; }
.big-alarm .body { margin-top: 14px; font-size: 12.5px; line-height: 1.9; color: var(--txt-2); }
.big-alarm .body b { color: var(--txt); }
.big-alarm .acts { margin-top: 18px; display: flex; gap: 9px; justify-content: flex-end; }

@media (max-width: 1500px) {
  .grid-main { grid-template-columns: 270px 1fr 310px; }
  .kpi-row { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 1180px) {
  .grid-main { grid-template-columns: 1fr; }
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
}