/* ===== SVG 水冷智控平台 · 精致深色主题 ===== */
:root {
  --bg: #0a0f1a;
  --bg2: #0d1420;
  --card: #141c2e;
  --card2: #1a2438;
  --line: #243350;
  --line2: #2e3f5e;
  --txt: #e8eef7;
  --dim: #8fa0b8;
  --dim2: #5f6f88;
  --accent: #38bdf8;
  --accent2: #1e9df0;
  --green: #34d399;
  --amber: #fbbf24;
  --orange: #fb923c;
  --red: #f87171;
  --purple: #c084fc;
  --radius: 14px;
  --shadow: 0 8px 28px rgba(0,0,0,.35);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: radial-gradient(1200px 600px at 20% -10%, #12203a 0%, var(--bg) 55%) fixed, var(--bg);
  color: var(--txt);
  font-family: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  min-height: 100vh; display: flex; flex-direction: column;
  font-size: 14px; line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
/* ---------- 顶栏 ---------- */
header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 28px;
  background: rgba(20,28,46,.85); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 50;
}
.brand { display: flex; gap: 14px; align-items: center; }
.logo {
  width: 40px; height: 40px; border-radius: 11px; font-size: 22px;
  background: linear-gradient(135deg, var(--accent2), #0b5fa5);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(56,189,248,.3);
}
.brand h1 { font-size: 17px; font-weight: 700; letter-spacing: .5px; }
.brand h1 .accent { color: var(--accent); }
.brand p { font-size: 11px; color: var(--dim); letter-spacing: 1px; margin-top: 2px; }
.hdr-status { display: flex; gap: 10px; align-items: center; }
.badge {
  padding: 7px 16px; border-radius: 20px; font-size: 12.5px; font-weight: 600;
  letter-spacing: .3px; border: 1px solid transparent;
  transition: all .25s;
}
.badge.stopped { background: #232d42; color: var(--dim); border-color: var(--line); }
.badge.running { background: rgba(52,211,153,.12); color: var(--green); border-color: rgba(52,211,153,.3); box-shadow: 0 0 12px rgba(52,211,153,.15); }
.badge.ok { background: rgba(56,189,248,.1); color: var(--accent); border-color: rgba(56,189,248,.25); }
.badge.alarm { background: rgba(248,113,113,.14); color: var(--red); border-color: rgba(248,113,113,.35); animation: blink 1.2s infinite; }
.badge.warn { background: rgba(251,191,36,.12); color: var(--amber); border-color: rgba(251,191,36,.3); }
.badge.trip { background: rgba(248,113,113,.2); color: #fff; border-color: var(--red); animation: blink .7s infinite; }
@keyframes blink { 50% { opacity: .55; } }
.clock { font-size: 13px; color: var(--dim); font-variant-numeric: tabular-nums; letter-spacing: .5px; }
/* ---------- 布局 ---------- */
main {
  flex: 1; display: grid; gap: 18px; padding: 20px 28px 28px;
  grid-template-columns: minmax(0,1fr) 360px;
  grid-template-areas: "schematic side" "trends side" "params side" "faults side" "configurator side";
  max-width: 1600px; margin: 0 auto; width: 100%;
}
.card {
  background: linear-gradient(180deg, var(--card) 0%, #121a2b 100%);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 22px; box-shadow: var(--shadow);
  transition: border-color .25s;
}
.card:hover { border-color: var(--line2); }
.card h2 {
  font-size: 15px; font-weight: 700; margin-bottom: 14px; letter-spacing: .3px;
  display: flex; align-items: center; gap: 8px;
}
.card h2::before {
  content: ""; width: 3px; height: 15px; border-radius: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent2));
}
.card h2 .sub { font-size: 11.5px; color: var(--dim); font-weight: 400; margin-left: 4px; }
.schematic { grid-area: schematic; }
.trends { grid-area: trends; }
.params { grid-area: params; }
.faults { grid-area: faults; }
.side { grid-area: side; display: flex; flex-direction: column; gap: 18px; }
/* ---------- 流程图 ---------- */
#diagram { width: 100%; height: auto; }
.equip .box { fill: var(--card2); stroke: var(--accent); stroke-width: 1.5; filter: drop-shadow(0 2px 8px rgba(56,189,248,.15)); }
.equip .box.hot { stroke: var(--amber); filter: drop-shadow(0 2px 8px rgba(251,191,36,.2)); }
.equip .label { fill: var(--txt); font-size: 13px; text-anchor: middle; font-weight: 600; }
.equip .label.small { font-size: 11px; fill: var(--dim); font-weight: 400; }
.equip .value { fill: var(--accent); font-size: 15px; font-weight: 700; text-anchor: middle; font-variant-numeric: tabular-nums; }
.equip .rotor { fill: none; stroke: var(--accent); stroke-width: 2; opacity: .75; }
.equip .valve-sym { fill: var(--accent); opacity: .9; }
.equip .valve-bar { stroke: var(--accent); stroke-width: 3; opacity: .9; }
.sensor .sbox { fill: var(--bg2); stroke: var(--green); stroke-width: 1.5; filter: drop-shadow(0 2px 6px rgba(52,211,153,.2)); }
.sensor .slabel { fill: var(--dim); font-size: 11.5px; text-anchor: middle; }
.sensor .sval { fill: var(--green); font-weight: 700; font-variant-numeric: tabular-nums; }
/* ---------- KPI ---------- */
.kpi-row { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-top: 14px; }
.kpi {
  background: rgba(255,255,255,.025); border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 14px; display: flex; flex-direction: column; gap: 5px;
  transition: transform .2s, border-color .2s;
}
.kpi:hover { transform: translateY(-2px); border-color: var(--line2); }
.kpi span { font-size: 11.5px; color: var(--dim); letter-spacing: .3px; }
.kpi b { font-size: 19px; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--txt); }
/* ---------- 趋势图 ---------- */
.chart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.chart-grid h3 { font-size: 12.5px; color: var(--dim); margin-bottom: 10px; font-weight: 500; letter-spacing: .3px; }
canvas { width: 100%; background: rgba(0,0,0,.25); border: 1px solid var(--line); border-radius: 10px; }
/* ---------- 按钮 ---------- */
.btn {
  flex: 1; padding: 12px 18px; border: none; border-radius: 10px; font-size: 14px;
  font-weight: 600; cursor: pointer; color: #fff; letter-spacing: .5px;
  transition: transform .15s, box-shadow .2s, opacity .2s;
}
.btn:hover:not(:disabled) { transform: translateY(-1px); }
.btn:active:not(:disabled) { transform: translateY(0); }
.btn.go { background: linear-gradient(135deg, #22c55e, #15803d); box-shadow: 0 4px 14px rgba(34,197,94,.25); }
.btn.go:hover:not(:disabled) { box-shadow: 0 6px 20px rgba(34,197,94,.4); }
.btn.stop { background: linear-gradient(135deg, #ef4444, #b91c1c); box-shadow: 0 4px 14px rgba(239,68,68,.25); }
.btn.stop:hover:not(:disabled) { box-shadow: 0 6px 20px rgba(239,68,68,.4); }
.btn.small { flex: none; padding: 9px 18px; font-size: 13px; background: linear-gradient(135deg, var(--accent2), #0b5fa5); box-shadow: 0 4px 12px rgba(56,189,248,.2); }
.btn.tiny { flex: none; padding: 6px 12px; font-size: 12px; background: var(--card2); border: 1px solid var(--line2); }
.btn.tiny:hover { border-color: var(--accent); color: var(--accent); }
.btn:disabled { opacity: .35; cursor: not-allowed; }
.control .btn-row { display: flex; gap: 12px; margin-bottom: 16px; }
.row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 12px 0; font-size: 13.5px; }
.row input[type=range] { flex: 1; accent-color: var(--accent); }
.row b { min-width: 52px; text-align: right; font-variant-numeric: tabular-nums; color: var(--accent); }
.row select, .row input[type=number] {
  background: var(--bg2); color: var(--txt); border: 1px solid var(--line);
  border-radius: 8px; padding: 8px 12px; font-size: 13.5px; transition: border-color .2s;
}
.row select:focus, .row input[type=number]:focus { outline: none; border-color: var(--accent); }
.row input[type=number] { width: 96px; }
.hidden { display: none !important; }
details { margin-top: 14px; border-top: 1px solid var(--line); padding-top: 14px; }
summary { cursor: pointer; font-size: 13.5px; color: var(--dim); font-weight: 500; }
summary:hover { color: var(--txt); }
/* ---------- 报警 ---------- */
.alarms ul { list-style: none; max-height: 320px; overflow-y: auto; }
.alarms li {
  padding: 10px 12px; border-bottom: 1px solid rgba(255,255,255,.04); font-size: 13px;
  border-radius: 6px; margin-bottom: 4px; background: rgba(255,255,255,.015);
}
.alarms li .t { color: var(--dim2); margin-right: 10px; font-variant-numeric: tabular-nums; font-size: 11.5px; }
.alarms li.alarm { color: var(--red); }
.alarms li.warn { color: var(--amber); }
.alarms li.info { color: var(--dim); }
.alarms li.empty { color: var(--dim2); text-align: center; padding: 28px; background: none; border: none; }
.alarms .alarm-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.alarms .alarm-head h2 { margin: 0; }
.alarms .alarm-head h2::before { display: none; }
.alarms .head-btns { display: flex; gap: 8px; }
#alarmList li { position: relative; padding-right: 76px; }
#alarmList li .ack-btn {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  padding: 5px 12px; font-size: 11.5px; border: 1px solid var(--line2);
  background: var(--card2); color: var(--dim); border-radius: 6px; cursor: pointer;
  transition: all .2s;
}
#alarmList li .ack-btn:hover { background: var(--accent2); color: #fff; border-color: var(--accent2); }
#alarmList li.acked { opacity: .5; }
#alarmList li.acked .ack-btn { display: none; }
#alarmList li .ack-tag {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  font-size: 11px; color: var(--green); font-weight: 600;
}
#alarmList li.warn { border-left: 3px solid var(--amber); }
#alarmList li.alarm { border-left: 3px solid var(--orange); }
#alarmList li.trip { border-left: 3px solid var(--red); }
#alarmList li.info { border-left: 3px solid var(--accent); }
.mute-ind { font-size: 11px; color: var(--amber); margin-left: 8px; font-weight: 600; }
/* ---------- 参数面板 ---------- */
.params .param-tabs { display: flex; gap: 8px; margin-bottom: 14px; }
.params .tab {
  padding: 8px 18px; border: 1px solid var(--line); background: var(--card2);
  color: var(--dim); border-radius: 8px; cursor: pointer; font-size: 13px; font-weight: 500;
  transition: all .2s;
}
.params .tab:hover { color: var(--txt); border-color: var(--line2); }
.params .tab.active { background: linear-gradient(135deg, var(--accent2), #0b5fa5); color: #fff; border-color: transparent; box-shadow: 0 4px 12px rgba(56,189,248,.25); }
.param-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; }
.param-item {
  background: rgba(255,255,255,.02); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px;
  transition: border-color .2s;
}
.param-item:hover { border-color: var(--line2); }
.param-item .pname { font-size: 12.5px; color: var(--txt); margin-bottom: 6px; font-weight: 500; }
.param-item .pval { font-size: 19px; font-weight: 700; color: var(--accent); font-variant-numeric: tabular-nums; }
.param-item .pval small { font-size: 12px; color: var(--dim); font-weight: 400; }
.param-item .pval input {
  width: 96px; background: var(--bg2); border: 1px solid var(--line); color: var(--txt);
  border-radius: 6px; padding: 6px 10px; font-size: 15px; transition: border-color .2s;
}
.param-item .pval input:focus { outline: none; border-color: var(--accent); }
.param-item .psrc { font-size: 11px; color: var(--dim2); margin-top: 6px; line-height: 1.4; }
.param-item .unc { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 10px; margin-left: 8px; font-weight: 600; }
.unc.high { background: rgba(248,113,113,.12); color: var(--red); }
.unc.mid { background: rgba(251,191,36,.12); color: var(--amber); }
.unc.low { background: rgba(52,211,153,.12); color: var(--green); }
.param-item input.invalid { border-color: var(--red) !important; background: rgba(248,113,113,.08) !important; }
.param-err { font-size: 11px; color: var(--red); margin-top: 6px; display: none; }
.param-item input.invalid + .param-err { display: block; }
.audit-list { font-size: 12px; color: var(--dim); max-height: 130px; overflow-y: auto; list-style: none; }
.audit-list li { padding: 5px 0; border-bottom: 1px solid rgba(255,255,255,.04); }
.audit-list li .t { color: var(--dim2); margin-right: 8px; font-size: 11px; }
.audit-list li.empty { text-align: center; color: var(--dim2); border: none; }
/* ---------- 故障面板 ---------- */
.fault-banner {
  display: flex; gap: 14px; align-items: center; padding: 16px 18px;
  border-radius: 12px; margin-bottom: 14px; border: 1px solid;
}
.fault-banner.ok { background: rgba(52,211,153,.07); border-color: rgba(52,211,153,.25); }
.fault-banner.warn { background: rgba(251,191,36,.07); border-color: rgba(251,191,36,.3); }
.fault-banner.alarm { background: rgba(251,146,60,.08); border-color: rgba(251,146,60,.35); }
.fault-banner.trip { background: rgba(248,113,113,.09); border-color: rgba(248,113,113,.4); }
.fault-banner .fault-icon {
  width: 44px; height: 44px; border-radius: 12px; font-size: 22px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.fault-banner.ok .fault-icon { background: rgba(52,211,153,.15); color: var(--green); }
.fault-banner.warn .fault-icon { background: rgba(251,191,36,.15); color: var(--amber); }
.fault-banner.alarm .fault-icon { background: rgba(251,146,60,.15); color: var(--orange); }
.fault-banner.trip .fault-icon { background: rgba(248,113,113,.15); color: var(--red); }
.fault-banner b { font-size: 15px; display: block; }
.fault-banner p { font-size: 12px; color: var(--dim); margin: 3px 0 0; }
.fault-levels { display: flex; gap: 12px; }
.fault-levels .level {
  flex: 1; text-align: center; padding: 12px; background: rgba(255,255,255,.02);
  border: 1px solid var(--line); border-radius: 10px; font-size: 13px; color: var(--dim);
  transition: all .25s;
}
.fault-levels .level .dot {
  display: inline-block; width: 9px; height: 9px; border-radius: 50%;
  margin-right: 7px; background: #33415580; transition: all .25s;
}
.fault-levels .level b { color: var(--txt); margin-left: 5px; font-variant-numeric: tabular-nums; }
#lv1.active { border-color: rgba(251,191,36,.4); }
#lv1.active .dot { background: var(--amber); box-shadow: 0 0 8px var(--amber); }
#lv2.active { border-color: rgba(251,146,60,.4); }
#lv2.active .dot { background: var(--orange); box-shadow: 0 0 8px var(--orange); }
#lv3.active { border-color: rgba(248,113,113,.5); }
#lv3.active .dot { background: var(--red); box-shadow: 0 0 8px var(--red); }
/* ---------- 断线提示 ---------- */
.conn-banner {
  display: none; background: rgba(248,113,113,.08); border: 1px solid rgba(248,113,113,.35); color: var(--red);
  padding: 10px 18px; border-radius: 10px; margin: 0 28px; font-size: 13px;
  text-align: center; font-weight: 500;
}
.conn-banner.show { display: block; animation: slideDown .3s; }
@keyframes slideDown { from { opacity: 0; transform: translateY(-8px); } }
.conn-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 8px; }
.conn-dot.on { background: var(--green); box-shadow: 0 0 6px var(--green); }
.conn-dot.off { background: var(--red); box-shadow: 0 0 6px var(--red); }
/* ---------- 用户管理 ---------- */
.user-mgmt .user-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.user-mgmt .user-table th, .user-mgmt .user-table td {
  padding: 10px 12px; text-align: left; border-bottom: 1px solid rgba(255,255,255,.05);
}
.user-mgmt .user-table th { color: var(--dim); font-weight: 500; font-size: 12px; letter-spacing: .3px; }
.user-mgmt .user-table tr:hover td { background: rgba(255,255,255,.015); }
.role-tag { padding: 3px 10px; border-radius: 6px; font-size: 11px; font-weight: 600; }
.role-tag.superuser { background: rgba(192,132,252,.12); color: var(--purple); }
.role-tag.operator { background: rgba(56,189,248,.12); color: var(--accent); }
.role-tag.viewer { background: rgba(143,160,184,.1); color: var(--dim); }
.user-form { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.user-form input, .user-form select {
  padding: 9px 12px; background: var(--bg2); border: 1px solid var(--line);
  border-radius: 8px; color: var(--txt); font-size: 13px; transition: border-color .2s;
}
.user-form input:focus, .user-form select:focus { outline: none; border-color: var(--accent); }
.user-form input { width: 140px; }
.modal {
  display: none; position: fixed; inset: 0;
  background: rgba(4,8,16,.7); backdrop-filter: blur(4px);
  align-items: center; justify-content: center; z-index: 100;
}
.modal.show { display: flex; animation: fadeIn .2s; }
@keyframes fadeIn { from { opacity: 0; } }
.modal .box {
  background: var(--card); border: 1px solid var(--line2); border-radius: 16px;
  padding: 28px; width: 340px; box-shadow: 0 24px 60px rgba(0,0,0,.5);
  animation: popIn .25s;
}
@keyframes popIn { from { transform: scale(.95); opacity: 0; } }
.modal .box h3 { margin-bottom: 18px; font-size: 16px; }
.modal .box input {
  width: 100%; padding: 11px 13px; margin-bottom: 12px;
  background: var(--bg2); border: 1px solid var(--line); border-radius: 8px; color: var(--txt);
}
.modal .box input:focus { outline: none; border-color: var(--accent); }
.modal .box .btn-row { display: flex; gap: 10px; margin-top: 10px; }
.modal .box .btn-row button { flex: 1; }
.err { color: var(--red); font-size: 12.5px; margin-top: 8px; min-height: 18px; }
/* ---------- 页脚 ---------- */
footer {
  text-align: center; padding: 16px; font-size: 11.5px; color: var(--dim2);
  border-top: 1px solid var(--line); letter-spacing: .3px;
}
/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  main { grid-template-columns: 1fr; grid-template-areas: "schematic" "trends" "params" "faults" "side"; }
  .kpi-row { grid-template-columns: repeat(3, 1fr); }
  .chart-grid { grid-template-columns: 1fr; }
}
.brand h1 .accent { color: var(--accent); }

/* 系统配置中心样式 */
.configurator .cfg-layout { display: grid; grid-template-columns: 220px 1fr 300px; gap: 14px; min-height: 480px; }
.cfg-palette { background: rgba(255,255,255,.02); border: 1px solid var(--line); border-radius: 10px; padding: 12px; }
.cfg-palette h4 { font-size: 12px; color: var(--dim); margin: 10px 0 8px; font-weight: 600; }
.cfg-palette h4:first-child { margin-top: 0; }
.comp-btn {
  display: block; width: 100%; text-align: left; padding: 9px 12px; margin-bottom: 6px;
  background: var(--card2); border: 1px solid var(--line); border-radius: 8px;
  color: var(--txt); font-size: 13px; cursor: pointer; transition: all .2s;
}
.comp-btn:hover { border-color: var(--accent); color: var(--accent); transform: translateX(2px); }
.cfg-canvas {
  background: rgba(0,0,0,.2); border: 1px solid var(--line); border-radius: 10px;
  padding: 14px; min-height: 480px; position: relative;
}
.cfg-node {
  background: var(--card2); border: 1.5px solid var(--accent); border-radius: 10px;
  padding: 10px 14px; margin-bottom: 8px; cursor: pointer; position: relative;
  transition: all .2s;
}
.cfg-node:hover { border-color: #fff; }
.cfg-node.selected { border-color: var(--amber); box-shadow: 0 0 12px rgba(251,191,36,.3); }
.cfg-node .nid { font-size: 11px; color: var(--dim2); }
.cfg-node .nlabel { font-size: 14px; font-weight: 600; }
.cfg-node .ntype { font-size: 11px; color: var(--accent); }
.cfg-node .del {
  position: absolute; right: 8px; top: 8px; background: none; border: none;
  color: var(--dim2); cursor: pointer; font-size: 14px;
}
.cfg-node .del:hover { color: var(--red); }
.cfg-conn { font-size: 12px; color: var(--dim); padding: 4px 14px; }
.cfg-conn::before { content: "↓ "; color: var(--accent); }
.cfg-props { background: rgba(255,255,255,.02); border: 1px solid var(--line); border-radius: 10px; padding: 14px; }
.cfg-props h4 { font-size: 13px; margin-bottom: 12px; }
.cfg-props .prow { margin-bottom: 10px; }
.cfg-props .prow label { display: block; font-size: 11.5px; color: var(--dim); margin-bottom: 4px; }
.cfg-props .prow input {
  width: 100%; padding: 8px 10px; background: var(--bg2);
  border: 1px solid var(--line); border-radius: 6px; color: var(--txt); font-size: 13px;
}
.cfg-props .prow input:focus { outline: none; border-color: var(--accent); }
.cfg-props .prow .unit { font-size: 11px; color: var(--dim2); margin-left: 4px; }
.cfg-props .prow .rng { font-size: 10.5px; color: var(--dim2); }
.cfg-actions { display: flex; gap: 10px; margin-top: 14px; }
.cfg-errors { margin-top: 12px; font-size: 12.5px; }
.cfg-errors .err-item { color: var(--red); padding: 6px 10px; background: rgba(248,113,113,.08); border-radius: 6px; margin-bottom: 6px; }
.cfg-errors .ok-item { color: var(--green); padding: 6px 10px; background: rgba(52,211,153,.08); border-radius: 6px; }
.cfg-output { margin-top: 12px; }
.cfg-output pre {
  background: #0a0e16; border: 1px solid var(--line); border-radius: 8px;
  padding: 12px; font-size: 11px; max-height: 300px; overflow: auto; color: #9fb3c8;
}

.configurator { grid-area: configurator; }