:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel2: #273449;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --ok: #22c55e;
  --warn: #f59e0b;
  --err: #ef4444;
  --border: #334155;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 15px;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

h1 { font-size: 18px; margin: 0; }
#subtitle { color: var(--muted); font-size: 12px; }

.indicator { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.indicator .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--err); }
.indicator.online .dot { background: var(--ok); }
.indicator.reconnecting .dot { background: var(--warn); }
.indicator.offline { color: var(--err); }

main { padding: 16px 20px; max-width: 1500px; margin: 0 auto; }

#cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; margin-bottom: 16px; }

.device-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
}
.device-card h2 {
  font-size: 14px; margin: 0 0 10px; color: var(--muted);
  display: flex; align-items: center; gap: 8px; font-weight: 600;
}

.channels { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 8px; }
.channel {
  background: var(--panel2);
  border-radius: 8px;
  padding: 10px;
  min-height: 60px;
}
.channel .label { font-size: 11px; color: var(--muted); margin-bottom: 4px; }
.channel .value { font-size: 19px; font-weight: 600; font-variant-numeric: tabular-nums; }
.channel .unit { font-size: 11px; color: var(--muted); margin-left: 3px; }
.channel.ok .value { color: var(--text); }
.channel.warn .value { color: var(--warn); }
.channel.err .value { color: var(--err); }
.channel.off .value { color: var(--muted); }
.channel .state { font-size: 11px; margin-top: 2px; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 16px;
}
.panel h2 { font-size: 14px; margin: 0 0 12px; color: var(--muted); font-weight: 600; }
.panel h3 { font-size: 13px; margin: 10px 0 8px; color: var(--text); }

.ctrl-group { border-top: 1px solid var(--border); padding-top: 10px; margin-top: 6px; }
.ctrl-group:first-of-type { border-top: none; margin-top: 0; }

.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; margin-bottom: 10px; }
label { font-size: 12px; color: var(--muted); display: flex; flex-direction: column; gap: 4px; }
label.check { flex-direction: row; align-items: center; gap: 6px; }

input[type="number"], select {
  background: var(--panel2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 8px;
  font-size: 14px;
  width: 90px;
}
select { width: auto; }

.btn {
  background: var(--panel2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s;
}
.btn:hover { background: #334155; }
.btn.primary { background: #0369a1; border-color: #0369a1; color: #fff; }
.btn.primary:hover { background: #0284c7; }
.btn.danger { background: #7f1d1d; border-color: #7f1d1d; color: #fff; }
.btn.danger:hover { background: #991b1b; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.log { margin-top: 10px; font-size: 12px; color: var(--muted); font-family: ui-monospace, monospace; max-height: 140px; overflow-y: auto; }
.log .ok { color: var(--ok); }
.log .err { color: var(--err); }

canvas { width: 100%; background: var(--panel2); border-radius: 8px; display: block; }

.muted { color: var(--muted); font-size: 12px; margin-top: 6px; }
#scan-info { min-height: 18px; }

/* TPD 实验模块 */
.seg-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-end; margin-bottom: 8px; padding: 8px; background: var(--panel2); border-radius: 6px; }
.seg-row label { flex-direction: column; }
.seg-row input { width: 72px; }
.seg-del { background: #7f1d1d; border-color: #7f1d1d; color: #fff; padding: 6px 10px; }

#alarm-banner { position: fixed; top: 64px; left: 50%; transform: translateX(-50%); background: #7f1d1d; color: #fff; padding: 10px 20px; border-radius: 8px; z-index: 100; font-size: 14px; box-shadow: 0 4px 12px rgba(0,0,0,0.4); }
#alarm-banner.hidden { display: none; }
#alarm-banner.show { animation: alarm-pulse 1s infinite; }
@keyframes alarm-pulse { 0%,100% {opacity:1} 50% {opacity:0.55} }

.run-item { display: flex; gap: 12px; align-items: center; padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.run-item .btn { padding: 4px 10px; font-size: 12px; }
#peak-table { margin-top: 10px; }
#peak-table h3 { font-size: 13px; margin: 8px 0; color: var(--text); }
.peak-row { padding: 3px 0; font-size: 13px; color: var(--text); font-variant-numeric: tabular-nums; }

/* ===== 顶部状态条 ===== */
.header-right { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

.badge {
  font-size: 12px; padding: 3px 10px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--muted);
  font-variant-numeric: tabular-nums; white-space: nowrap;
}
.badge.local { color: #22c55e; border-color: #166534; background: rgba(34,197,94,0.12); }
.badge.sim { color: #38bdf8; border-color: #075985; background: rgba(56,189,248,0.12); }
.badge.cloud { color: #f59e0b; border-color: #92400e; background: rgba(245,158,11,0.12); }

.timer { font-size: 12px; color: var(--muted); font-family: ui-monospace, monospace; white-space: nowrap; }

.alarm-lamp { font-size: 14px; line-height: 1; }
.alarm-lamp.ok { color: var(--ok); }
.alarm-lamp.warn { color: var(--warn); }
.alarm-lamp.err { color: var(--err); animation: alarm-pulse 1s infinite; }

.btn.icon { padding: 8px 12px; font-weight: 700; }
.btn.estop {
  background: #dc2626; border-color: #dc2626; color: #fff;
  font-weight: 700; padding: 8px 18px; letter-spacing: 2px;
}
.btn.estop:hover { background: #ef4444; }

/* ===== 联锁提示区 ===== */
.strip { display: flex; flex-direction: column; gap: 10px; }
.strip-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.strip h2 { margin: 0; }
.legend { display: flex; gap: 14px; flex-wrap: wrap; }
.lg { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }
.lg-dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.lg-dot.ok { background: var(--ok); }
.lg-dot.idle { background: #64748b; }
.lg-dot.warn { background: var(--warn); }
.lg-dot.err { background: var(--err); }

.rules { display: flex; flex-wrap: wrap; gap: 8px; }
.rule-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 10px; border-radius: 999px; font-size: 12px;
  border: 1px solid var(--border); color: var(--muted);
  font-variant-numeric: tabular-nums; cursor: default;
}
.rule-chip b { font-weight: 700; }
.rule-chip.ok { color: var(--text); }
.rule-chip.ok b { color: var(--ok); }
.rule-chip.warn { color: #fbbf24; border-color: #78350f; }
.rule-chip.warn b { color: var(--warn); }
.rule-chip.err { color: #fecaca; border-color: #7f1d1d; background: rgba(239,68,68,0.12); }
.rule-chip.err b { color: var(--err); }
.rule-chip.off { color: #64748b; }
.rule-chip.off b { color: #64748b; }

/* ===== 弹窗 ===== */
.overlay {
  position: fixed; inset: 0; background: rgba(2,6,23,0.7);
  display: flex; align-items: center; justify-content: center; z-index: 200;
}
.overlay.hidden { display: none; }
.modal {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 18px 20px; width: min(520px, 92vw); max-height: 80vh; overflow-y: auto;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}
.modal h3 { margin: 0 0 12px; font-size: 15px; color: var(--text); }
.modal p { font-size: 13px; color: var(--muted); margin: 6px 0; }
.modal ul { margin: 6px 0; padding-left: 20px; font-size: 13px; color: var(--text); }
.modal code { background: var(--panel2); padding: 1px 6px; border-radius: 4px; font-size: 12px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 16px; }

/* ===== 一屏五区块 Dashboard ===== */
.dash-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 14px; margin-bottom: 14px; }
#block-vacuum { grid-column: span 4; }
#block-heating { grid-column: span 4; }
#block-rga { grid-column: span 4; }
#block-trend { grid-column: span 6; }
#block-alarm { grid-column: span 6; }
@media (max-width: 1100px) {
  #block-vacuum, #block-heating, #block-rga, #block-trend, #block-alarm { grid-column: span 12; }
}

.block { display: flex; flex-direction: column; }
.block-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.block-head h2 { margin: 0; font-size: 14px; color: var(--muted); font-weight: 600; }
.btn.link { background: transparent; border: none; color: var(--accent); padding: 4px 8px; font-size: 13px; cursor: pointer; }
.btn.link:hover { text-decoration: underline; }

.big-read { font-size: 42px; font-weight: 700; font-variant-numeric: tabular-nums; line-height: 1.1; }
.big-read.ok { color: var(--ok); }
.big-read.warn { color: var(--warn); }
.big-read.idle { color: var(--muted); }
.big-read.heat { color: #f97316; }
.big-read.err { color: var(--err); }
.big-cap { font-size: 12px; color: var(--muted); margin-bottom: 10px; }

.kv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 14px; margin-top: 10px; }
.kv { display: flex; justify-content: space-between; gap: 8px; font-size: 13px; padding: 6px 8px; background: var(--panel2); border-radius: 6px; }
.kv .k { color: var(--muted); }
.kv .v { font-variant-numeric: tabular-nums; color: var(--text); }
.kv .v.muted-v { color: var(--muted); }
.kv .v.v-err { color: var(--err); }

.bars { display: flex; flex-direction: column; gap: 5px; margin-top: 10px; }
.bar-row { display: grid; grid-template-columns: 64px 1fr 90px; align-items: center; gap: 8px; font-size: 12px; }
.bar-label { color: var(--muted); text-align: right; }
.bar-track { height: 10px; background: var(--panel2); border-radius: 5px; overflow: hidden; }
.bar-fill { display: block; height: 100%; background: #38bdf8; border-radius: 5px; }
.bar-val { color: var(--text); font-variant-numeric: tabular-nums; }

.trend-chips { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 8px; }
.chip { background: var(--panel2); color: var(--muted); border: 1px solid var(--border); border-radius: 999px; padding: 4px 12px; font-size: 12px; cursor: pointer; }
.chip.active { background: #0369a1; border-color: #0369a1; color: #fff; }

/* 详情弹窗 */
.modal-lg { width: min(960px, 94vw); }
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.modal-head h3 { margin: 0; font-size: 15px; color: var(--text); }
.detail-sec.hidden { display: none; }
#device-diagram { overflow-x: auto; }
#device-diagram svg { min-width: 720px; }

/* 移动端适配 */
@media (max-width: 640px) {
  header { padding: 10px 12px; flex-wrap: wrap; }
  .title h1 { font-size: 15px; }
  #subtitle { display: none; }
  .header-right { gap: 8px; width: 100%; justify-content: flex-end; }
  .timer { display: none; }
  main { padding: 12px; }
  .big-read { font-size: 34px; }
}