/* ============================================================
   传感器观测站 v4 · 样式（暗夜金辉）
   ============================================================ */
:root {
  --bg0: #0a0d18;
  --bg1: #12172b;
  --panel: rgba(255, 255, 255, .035);
  --panel-hi: rgba(255, 255, 255, .06);
  --line: rgba(217, 179, 106, .28);
  --line-soft: rgba(255, 255, 255, .08);
  --gold: #d9b36a;
  --gold-hi: #f0cd8a;
  --ink: #e9e4d6;
  --mut: #8f96ad;
  --temp: #f0b35e;
  --humi: #6ea8e6;
  --ok: #7fd08a;
  --warn: #e6b45a;
  --err: #e07a6a;
  --radius: 14px;
  --serif: "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
  --sans: "Microsoft YaHei", "PingFang SC", "Segoe UI", system-ui, sans-serif;
}

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

body {
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--sans);
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(110, 140, 220, .12), transparent 60%),
    radial-gradient(900px 420px at 10% 110%, rgba(217, 179, 106, .08), transparent 60%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  background-attachment: fixed;
  padding: 28px clamp(14px, 4vw, 48px) 40px;
}

/* 星屑背景 */
.stars {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(1.2px 1.2px at 12% 22%, rgba(233, 228, 214, .5), transparent 100%),
    radial-gradient(1px 1px at 32% 68%, rgba(233, 228, 214, .35), transparent 100%),
    radial-gradient(1.4px 1.4px at 58% 12%, rgba(240, 205, 138, .45), transparent 100%),
    radial-gradient(1px 1px at 74% 44%, rgba(233, 228, 214, .4), transparent 100%),
    radial-gradient(1.2px 1.2px at 88% 76%, rgba(233, 228, 214, .35), transparent 100%),
    radial-gradient(1px 1px at 44% 88%, rgba(240, 205, 138, .35), transparent 100%),
    radial-gradient(1px 1px at 6% 58%, rgba(233, 228, 214, .3), transparent 100%),
    radial-gradient(1.3px 1.3px at 66% 92%, rgba(233, 228, 214, .3), transparent 100%);
  opacity: .8;
}

/* ===== 顶栏 ===== */
.top {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  max-width: 1080px;
  margin: 0 auto 26px;
}

.brand h1 {
  font-family: var(--serif);
  font-size: clamp(24px, 3.4vw, 32px);
  letter-spacing: 6px;
  color: var(--gold-hi);
  text-shadow: 0 0 22px rgba(217, 179, 106, .35);
}

.tagline {
  margin-top: 6px;
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--mut);
}

.meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--mut);
}

.live-dot { display: inline-flex; align-items: center; gap: 7px; }
.live-dot i {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--warn);
  box-shadow: 0 0 8px var(--warn);
}
.live-dot.on i { background: var(--ok); box-shadow: 0 0 10px var(--ok); animation: pulse 2s ease-in-out infinite; }
.live-dot.err i { background: var(--err); box-shadow: 0 0 8px var(--err); }
.live-dot em { font-style: normal; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

.total { color: var(--gold); letter-spacing: 1px; }
.clock { font-variant-numeric: tabular-nums; letter-spacing: 1px; }

/* ===== 主区 ===== */
main { max-width: 1080px; margin: 0 auto; display: grid; gap: 22px; }

/* 设备卡片 */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
}

.card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px 16px;
  backdrop-filter: blur(4px);
  transition: border-color .3s, box-shadow .3s;
}
.card:hover { border-color: rgba(217, 179, 106, .55); box-shadow: 0 6px 26px rgba(0, 0, 0, .35); }
.card.flash { animation: cardflash 1.2s ease-out; }
@keyframes cardflash {
  0% { box-shadow: 0 0 0 1px var(--gold), 0 0 34px rgba(217, 179, 106, .55); }
  100% { box-shadow: none; }
}

.card .dev {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: 13px; color: var(--mut); letter-spacing: 1px;
}
.card .dev b { color: var(--gold); font-size: 14px; letter-spacing: 2px; }

.card .main-val {
  margin: 10px 0 4px;
  font-variant-numeric: tabular-nums;
}
.card .main-val .v {
  font-size: 44px; font-weight: 600; color: var(--ink);
  text-shadow: 0 0 18px rgba(240, 179, 94, .25);
}
.card .main-val .u { font-size: 15px; color: var(--mut); margin-left: 4px; }
.card .main-val .lbl { font-size: 12px; color: var(--temp); margin-left: 10px; letter-spacing: 2px; }

.card .sub {
  display: flex; gap: 18px; margin-top: 8px;
  font-size: 13px; color: var(--mut); font-variant-numeric: tabular-nums;
}
.card .sub b { color: var(--ink); font-weight: 500; }
.card .sub .humi b { color: var(--humi); }

.card .stamp { margin-top: 12px; font-size: 12px; color: var(--mut); }
.card .stamp .rel { color: var(--gold); }

/* 过去 1 小时平均 */
.card .hour-avg {
  margin-top: 11px;
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px 14px;
  padding: 8px 11px;
  background: rgba(217, 179, 106, .05);
  border: 1px dashed var(--line);
  border-radius: 9px;
  font-size: 12px; color: var(--mut);
  line-height: 1.6;
}
.card .hour-avg .ha-lbl {
  color: var(--gold);
  letter-spacing: 1px;
  margin-right: 2px;
}
.card .hour-avg b { color: var(--ink); font-weight: 500; font-variant-numeric: tabular-nums; }
.card .hour-avg .ha-t b { color: var(--temp); }
.card .hour-avg .ha-h b { color: var(--humi); }
.card .hour-avg .ha-empty { color: var(--mut); font-style: italic; }
.card .hour-avg .ha-n { color: var(--mut); margin-left: auto; }

.card .raw {
  margin-top: 10px; font-size: 12px; color: var(--mut);
  background: rgba(0, 0, 0, .28);
  border: 1px solid var(--line-soft);
  border-radius: 8px; padding: 8px 10px;
  word-break: break-all; line-height: 1.6;
}

/* ===== 面板 ===== */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  backdrop-filter: blur(4px);
}

.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 10px; margin-bottom: 12px;
}

.panel h2 {
  font-family: var(--serif);
  font-size: 17px; font-weight: 600;
  letter-spacing: 4px; color: var(--gold);
}

.hint { font-size: 12px; color: var(--mut); letter-spacing: 1px; }

/* 设备筛选 */
.filters { display: flex; gap: 8px; flex-wrap: wrap; }
.filters button {
  appearance: none; cursor: pointer;
  background: transparent;
  border: 1px solid var(--line-soft);
  color: var(--mut);
  font-size: 12px; letter-spacing: 1px;
  padding: 5px 14px; border-radius: 999px;
  transition: all .25s;
}
.filters button:hover { color: var(--ink); border-color: var(--line); }
.filters button.active {
  color: #1a1408; background: var(--gold);
  border-color: var(--gold); font-weight: 600;
}

/* ===== 曲线 ===== */
.chart-wrap { position: relative; }
#chart { display: block; width: 100%; height: auto; }

.chart-tip {
  position: absolute; z-index: 5;
  pointer-events: none;
  background: rgba(10, 13, 24, .94);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 11px;
  font-size: 12px; line-height: 1.7;
  color: var(--mut);
  white-space: nowrap;
  box-shadow: 0 4px 18px rgba(0, 0, 0, .5);
}
.chart-tip b { color: var(--ink); font-weight: 500; }
.chart-tip .t { color: var(--temp); }
.chart-tip .h { color: var(--humi); }

.chart-empty, .rows-empty {
  padding: 46px 0;
  text-align: center;
  font-family: var(--serif);
  font-size: 14px; letter-spacing: 3px;
  color: var(--mut);
}

.legend {
  display: flex; align-items: center; gap: 20px;
  margin-top: 10px; font-size: 12px; color: var(--mut);
}
.legend .sw {
  display: inline-block; width: 10px; height: 10px;
  border-radius: 3px; margin-right: 6px; vertical-align: -1px;
}
.sw-temp { background: var(--temp); box-shadow: 0 0 8px rgba(240, 179, 94, .7); }
.sw-humi { background: var(--humi); box-shadow: 0 0 8px rgba(110, 168, 230, .7); }

/* ===== 历史表格 ===== */
.table-wrap { overflow-x: auto; }

table.hist { width: 100%; border-collapse: collapse; font-size: 13px; }
table.hist th {
  text-align: left; font-weight: 500;
  font-size: 12px; letter-spacing: 2px;
  color: var(--mut);
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
table.hist td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--line-soft);
  white-space: nowrap;
  color: var(--ink);
}
table.hist tr:last-child td { border-bottom: none; }
table.hist .num { text-align: right; font-variant-numeric: tabular-nums; }
table.hist td.temp { color: var(--temp); }
table.hist td.humi { color: var(--humi); }
table.hist td.rssi { color: var(--mut); }
table.hist td.time { color: var(--mut); font-variant-numeric: tabular-nums; }
table.hist td.dev { color: var(--gold); letter-spacing: 1px; }

table.hist tr.new-row { animation: rowflash 1.6s ease-out; }
@keyframes rowflash {
  0% { background: rgba(217, 179, 106, .22); }
  100% { background: transparent; }
}

details.rawdetails { display: inline-block; }
details.rawdetails summary {
  cursor: pointer; list-style: none;
  color: var(--mut); font-size: 12px; letter-spacing: 1px;
  user-select: none;
}
details.rawdetails summary:hover { color: var(--gold); }
details.rawdetails summary::before { content: "▸ "; }
details.rawdetails[open] summary::before { content: "▾ "; }
details.rawdetails pre {
  margin-top: 6px;
  max-width: 380px; max-height: 200px; overflow: auto;
  background: rgba(0, 0, 0, .32);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 12px; line-height: 1.6;
  color: #b9c2d8;
  white-space: pre-wrap; word-break: break-all;
}

/* ===== 信号强度图标（5 格竖条） ===== */
.rssi-icon {
  display: inline-block;
  vertical-align: middle;
  margin-left: 6px;
  margin-top: -2px;
}
.rssi-icon rect.on  { fill: var(--c, #7fd08a); }
.rssi-icon rect.off { fill: none; stroke: rgba(233, 228, 214, .28); stroke-width: 1; }

/* 卡片中的信号行：数值 + 图标对齐 */
.card .sub .sig { display: inline-flex; align-items: center; gap: 4px; }
.card .sub .sig .rssi-icon { margin-left: 2px; }

/* 表格信号列：数值 + 图标右对齐 */
td.rssi { display: flex; align-items: center; justify-content: flex-end; gap: 6px; }
td.rssi .rssi-icon { margin-left: 0; }

/* ===== MQ-2 可燃气体（ADC 0~4095，未校准为 PPM） ===== */
.card .mq2-row {
  margin-top: 9px;
  display: flex; align-items: center; gap: 9px;
  font-size: 12px; color: var(--mut);
}
.card .mq2-row .mq2-lbl { letter-spacing: 1px; flex: 0 0 auto; }
.card .mq2-row .mq2-val { color: var(--ink); font-weight: 600; font-variant-numeric: tabular-nums; flex: 0 0 auto; }
.card .mq2-row .mq2-volt { color: var(--mut); font-variant-numeric: tabular-nums; flex: 0 0 auto; }
.card .mq2-row .mq2-lvl { margin-left: auto; font-weight: 600; letter-spacing: 1px; flex: 0 0 auto; }
.card .mq2-row .mq2-empty { color: var(--mut); }

.mq2-track {
  flex: 1 1 auto;
  height: 6px; min-width: 56px;
  background: rgba(255, 255, 255, .07);
  border-radius: 3px;
  overflow: hidden;
}
.mq2-fill {
  display: block; height: 100%;
  border-radius: 3px;
  transition: width .6s ease, background .6s ease;
}

/* 表格中的浓度色点 */
td.mq2 { white-space: nowrap; }
.mq2-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: 0;
}

/* 均值块中的可燃气体项 */
.card .hour-avg .ha-m b { color: var(--ink); }
.card .hour-avg .ha-m i { font-style: normal; color: var(--mut); margin-left: 2px; }

/* ===== GPS 定位（ATGM336H，lat/lng/gps_sats/gps_hdop） ===== */
.card .gps-row {
  margin-top: 9px;
  display: flex; align-items: center; gap: 9px;
  font-size: 12px; color: var(--mut);
}
.card .gps-row .gps-lbl { letter-spacing: 1px; flex: 0 0 auto; }
.card .gps-row .gps-xy {
  color: var(--ink); font-weight: 600;
  font-variant-numeric: tabular-nums;
  text-decoration: none;
  border-bottom: 1px dashed rgba(217, 179, 106, .45);
}
.card .gps-row .gps-xy:hover { color: var(--gold-hi); border-bottom-color: var(--gold-hi); }
.card .gps-row .gps-meta { color: var(--mut); font-variant-numeric: tabular-nums; flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card .gps-row .gps-state { font-weight: 600; letter-spacing: 1px; flex: 0 0 auto; }
.card .gps-row .gps-state.ok   { color: var(--ok); }
.card .gps-row .gps-state.seek { color: var(--warn); }
.card .gps-row .gps-state.none { color: var(--mut); font-weight: 400; }

/* ===== 模块运行状态芯片（status 包 mods） ===== */
.card .mods-row {
  margin-top: 10px;
  display: flex; align-items: center; flex-wrap: wrap; gap: 6px;
  font-size: 12px; color: var(--mut);
}
.card .mods-row .mods-lbl { letter-spacing: 1px; margin-right: 2px; }
.card .mods-row .mods-none { font-style: italic; }
.card .mods-row .mods-ts { margin-left: auto; color: var(--gold); font-variant-numeric: tabular-nums; }

.chip {
  display: inline-block;
  padding: 1px 9px;
  border-radius: 999px;
  font-size: 11px; letter-spacing: 1px;
  line-height: 1.6;
}
.chip.ok {
  color: var(--ok);
  background: rgba(127, 208, 138, .10);
  border: 1px solid rgba(127, 208, 138, .35);
}
.chip.down {
  color: var(--err);
  background: rgba(224, 122, 106, .12);
  border: 1px solid rgba(224, 122, 106, .45);
  box-shadow: 0 0 8px rgba(224, 122, 106, .28);
}

/* ===== 水温（DS18B20） ===== */
.card .sub .water b { color: #6fd6c6; }
table.hist td.water { color: #6fd6c6; }

/* 表格定位列 */
table.hist td.gps { font-variant-numeric: tabular-nums; white-space: nowrap; }
table.hist td.gps a.gps-link {
  color: var(--ink); text-decoration: none;
  border-bottom: 1px dashed rgba(217, 179, 106, .45);
}
table.hist td.gps a.gps-link:hover { color: var(--gold-hi); border-bottom-color: var(--gold-hi); }

/* ===== GPS 内嵌地图弹窗（百度 JS API） ===== */
.modal {
  position: fixed; inset: 0; z-index: 900;
  display: flex; align-items: center; justify-content: center;
  padding: 18px;
}
.modal[hidden] { display: none !important; }
.map-modal .modal-mask {
  position: absolute; inset: 0;
  background: rgba(5, 8, 15, .74);
  backdrop-filter: blur(4px);
  opacity: 0; transition: opacity .3s ease;
}
.map-modal.show .modal-mask { opacity: 1; }
.map-body {
  position: relative;
  display: flex; flex-direction: column;
  width: min(880px, 96vw); height: min(580px, 86vh);
  background: linear-gradient(165deg, #111a2b, #0a101c);
  border: 1px solid rgba(217, 179, 106, .4);
  border-radius: 12px;
  box-shadow: 0 22px 70px rgba(0, 0, 0, .65), 0 0 30px rgba(217, 179, 106, .10);
  overflow: hidden;
  opacity: 0; transform: translateY(16px) scale(.98);
  transition: opacity .32s ease, transform .32s ease;
}
.map-modal.show .map-body { opacity: 1; transform: none; }
.map-head {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 16px;
  border-bottom: 1px solid rgba(217, 179, 106, .18);
  color: var(--ink); font-size: 14px;
}
.map-head b { letter-spacing: 1px; flex: 0 0 auto; }
#map-meta {
  flex: 1; min-width: 0;
  font-size: 12px; color: var(--mut);
  font-variant-numeric: tabular-nums;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
#map-close {
  flex: 0 0 auto;
  background: rgba(217, 179, 106, .12); color: var(--gold);
  border: 1px solid rgba(217, 179, 106, .4); border-radius: 8px;
  padding: 5px 14px; cursor: pointer;
  font-size: 12px; letter-spacing: 2px;
  transition: background .2s, color .2s;
}
#map-close:hover { background: rgba(217, 179, 106, .22); color: var(--gold-hi); }
#map-canvas { flex: 1; min-height: 0; background: #0d1420; }
.map-foot {
  display: flex; align-items: center; gap: 12px;
  padding: 9px 16px;
  border-top: 1px solid rgba(217, 179, 106, .18);
  font-size: 12px; color: var(--mut);
}
#map-status { flex: 1; min-width: 0; }
#map-external {
  flex: 0 0 auto; color: var(--gold); text-decoration: none;
  border-bottom: 1px dashed rgba(217, 179, 106, .45);
}
#map-external:hover { color: var(--gold-hi); border-bottom-color: var(--gold-hi); }
#map-external[hidden] { display: none; }

@media (max-width: 640px) {
  .map-body { height: 80vh; padding: 0; }
  .map-head { flex-wrap: wrap; }
}
.gps-dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 6px var(--ok);
  margin-right: 6px;
  vertical-align: 1px;
}

.more { margin-top: 14px; text-align: center; }
.btn {
  appearance: none; cursor: pointer;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--gold);
  font-size: 13px; letter-spacing: 2px;
  padding: 8px 26px; border-radius: 999px;
  transition: all .25s;
}
.btn:hover { background: rgba(217, 179, 106, .12); border-color: var(--gold-hi); color: var(--gold-hi); }

/* ===== 页脚 ===== */
.foot {
  max-width: 1080px;
  margin: 30px auto 0;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  font-size: 12px; color: var(--mut); letter-spacing: 1px;
}
.foot code {
  background: rgba(0, 0, 0, .3);
  border: 1px solid var(--line-soft);
  border-radius: 6px; padding: 2px 8px;
  color: #b9c2d8;
}
.foot a { color: var(--gold); text-decoration: none; }
.foot a:hover { color: var(--gold-hi); text-decoration: underline; }

/* ===== 移动端 ===== */
@media (max-width: 640px) {
  body { padding: 20px 12px 30px; }
  .brand h1 { letter-spacing: 3px; }
  .meta { gap: 10px; font-size: 12px; }
  table.hist th, table.hist td { padding: 7px 6px; }
  .col-rssi, .col-water { display: none; }
  details.rawdetails pre { max-width: 240px; }
}