:root{
  --bg:#f4f6f2;--card:#fff;--line:#e3e8e0;--line-soft:#eef1ec;
  --ink:#1d332e;--ink-2:#4f625b;--muted:#84918a;
  --brand:#21483c;--brand-2:#2f6352;--brand-soft:#e8f0ea;
  --ok:#2f7a45;--ok-bg:#e6f4e9;--warn:#9a6b10;--warn-bg:#fff4dc;--bad:#a23b2c;--bad-bg:#fdebe6;
  --radius:16px;--shadow:0 1px 2px #1d332e0a,0 8px 24px #1d332e08;
  font-family:Inter,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);font-size:15px;
  -webkit-font-smoothing:antialiased
}
*{box-sizing:border-box}
body{margin:0;min-height:100vh}
.shell{max-width:1200px;margin:auto;padding:0 32px}
.hidden{display:none!important}
.mono{font-family:"SF Mono",ui-monospace,Menlo,Consolas,monospace;letter-spacing:.3px}
.muted{color:var(--muted)}
h1{font-size:34px;letter-spacing:-.8px;margin:10px 0 14px;font-weight:650;line-height:1.2}
h2{font-size:17px;font-weight:600;margin:6px 0 14px}
h3{font-size:12px;font-weight:600;color:var(--ink-2);margin:0 0 10px;letter-spacing:.5px}
p{line-height:1.7;margin:6px 0 16px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:10px;font-weight:700;letter-spacing:2px;color:var(--muted)}
.dot{width:7px;height:7px;border-radius:50%;background:#8fb768;box-shadow:0 0 0 4px #8fb76822}

/* 按钮与表单 */
button,input{font:inherit}
button{cursor:pointer;border:1px solid var(--line);border-radius:10px;background:var(--card);padding:11px 16px;color:var(--ink);transition:background .15s,border-color .15s,transform .05s}
button:hover{background:var(--brand-soft);border-color:#a9c2b2}
button:active{transform:translateY(1px)}
button:disabled{opacity:.45;cursor:wait;transform:none}
button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid #8baa7e;outline-offset:2px}
.primary{background:var(--brand);color:#fff;border-color:var(--brand);font-weight:500}
.primary:hover{background:var(--brand-2);border-color:var(--brand-2)}
.ghost{background:transparent;border-color:transparent;color:var(--ink-2)}
.ghost:hover{background:#fff;border-color:var(--line)}
.small{padding:5px 10px;font-size:12px;border-radius:7px}
.block{width:100%}
label{display:block;font-size:12px;color:var(--ink-2);margin-top:16px}
input{display:block;width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:9px;margin-top:7px;background:#fbfcfa;min-width:0;color:var(--ink)}
input:focus{outline:none;border-color:#8baa7e;background:#fff;box-shadow:0 0 0 3px #8baa7e26}
.checkbox{display:flex;align-items:center;gap:8px;cursor:pointer}
.checkbox input{width:auto;margin:0;accent-color:var(--brand)}
form .block{margin-top:14px}
.form-error{color:var(--bad);font-size:13px;margin:10px 0 0;min-height:1em}

/* 顶栏 */
.topbar{height:76px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--brand)}
.logo{width:38px;height:38px;border-radius:11px;background:var(--brand);color:#e8f3c8;display:grid;place-items:center;font-weight:800;font-size:20px}
.brand-text{display:flex;flex-direction:column;font-weight:800;font-size:15px;letter-spacing:2px;line-height:1.2}
.brand-text small{font-weight:500;font-size:11px;letter-spacing:1px;color:var(--muted)}

/* 卡片 */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-bottom:20px;box-shadow:var(--shadow)}
.section-title{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.section-title span{font-size:11px;color:var(--muted)}
.empty{font-size:13px;color:var(--muted);margin:4px 0}

/* 头部概览 */
.hero{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;padding:34px 0 20px}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-block;font-size:12px;padding:5px 11px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink-2)}
.hero .primary{padding:12px 22px;white-space:nowrap}
.notice{padding:11px 16px;border:1px solid #dbe4d2;border-radius:11px;background:#eef2e8;color:var(--ink-2);font-size:13px;margin-bottom:22px;line-height:1.7}
.notice.error{color:var(--bad);background:var(--bad-bg);border-color:#efcabe}

.layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:22px;align-items:start}
.side-column{position:sticky;top:20px}

/* 关键指标 */
.highlights{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:20px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 16px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:8px;min-width:0}
.stat:first-child{background:var(--brand);border-color:var(--brand);color:#fff}
.stat:first-child .stat-label,.stat:first-child small{color:#b9d3c6}
.stat-label{font-size:12px;color:var(--muted)}
.stat-value{font-size:28px;font-weight:600;letter-spacing:-.5px;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
.stat-value small{font-size:12px;font-weight:400;color:var(--muted);margin-left:4px;letter-spacing:0}
.stat.placeholder .stat-value{color:#c3ccc5}
.stat:first-child.placeholder .stat-value{color:#ffffff55}
.bar{height:5px;border-radius:5px;background:var(--line-soft);overflow:hidden}
.stat:first-child .bar{background:#ffffff26}
.bar i{display:block;height:100%;background:#8fb768;border-radius:5px}
.bar i.low{background:#e0894f}

/* 车辆数据 */
.group{padding-top:16px;margin-top:4px}
.group+.group{border-top:1px dashed var(--line);margin-top:18px}
.metrics{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.metric{background:#f8faf6;border:1px solid var(--line-soft);border-radius:12px;padding:13px 14px;min-width:0;position:relative}
.metric .label{color:var(--muted);font-size:12px;overflow-wrap:anywhere}
.metric .value{font-size:21px;font-weight:550;margin-top:6px;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
.metric .unit{font-size:11px;font-weight:400;color:var(--muted);margin-left:4px}
.metric.untranslated{border-style:dashed;border-color:#e3d6a8;background:#fffdf5}
.metric.untranslated .label{font-family:"SF Mono",ui-monospace,Menlo,monospace;font-size:11px}
.status{display:inline-block;margin-top:7px;font-size:11px;padding:2px 8px;border-radius:999px;font-weight:500}
.status.ok{background:var(--ok-bg);color:var(--ok)}
.status.warn{background:var(--warn-bg);color:var(--warn)}
.status.bad{background:var(--bad-bg);color:var(--bad)}
.status.na{background:var(--line-soft);color:var(--muted)}
.group-tire .metrics{grid-template-columns:repeat(2,minmax(0,1fr));max-width:420px}

/* 折叠原始数据 */
details.raw{margin-top:16px;border-top:1px solid var(--line-soft);padding-top:12px}
details.raw summary{font-size:12px;color:var(--ink-2)}
details.raw summary span{color:var(--warn);margin-left:6px}
.raw-actions{display:flex;justify-content:flex-end;margin-top:8px}
summary{cursor:pointer;font-size:14px;font-weight:500;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:10px}
summary::-webkit-details-marker{display:none}
summary::after{content:"›";font-size:18px;color:var(--muted);transition:transform .15s;margin-left:auto}
details[open]>summary::after{transform:rotate(90deg)}
details.raw summary{justify-content:flex-start}
pre{font-size:12px;white-space:pre-wrap;overflow-wrap:anywhere;background:#f6f8f4;border:1px solid var(--line-soft);border-radius:10px;padding:14px;max-height:320px;overflow:auto;margin:8px 0 0}

/* 远程控制 */
.controls{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin:14px 0 16px}
.controls button{display:flex;flex-direction:column;align-items:flex-start;gap:6px;text-align:left;font-size:13px;padding:13px 12px;background:#f8faf6;border-color:var(--line-soft)}
.controls button b{font-size:18px;font-weight:400;line-height:1}
.controls button:hover{background:var(--brand-soft);border-color:#a9c2b2}
.controls button.warn:hover{background:#fff6e8;border-color:#e6c99a}
.hint{font-size:12px;line-height:1.75;color:var(--muted);margin:0}
form .hint{margin-top:16px}
.badge{font-size:11px;font-weight:500;padding:3px 9px;border-radius:999px;background:var(--warn-bg);color:var(--warn)}
.badge.on{background:var(--ok-bg);color:var(--ok)}
#settings summary .badge{margin-left:auto}
#settings summary::after{margin-left:4px}

/* 位置信息 */
#location{font-size:13px;line-height:1.8;margin-bottom:8px}
.location-info{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-bottom:8px;color:var(--ink-2)}
.location-links{display:flex;gap:10px}
.map-link{display:inline-block;padding:6px 14px;border:1px solid var(--line);border-radius:8px;background:#f8faf6;color:var(--brand);text-decoration:none;font-size:12px;font-weight:500;transition:.15s}
.map-link:hover{background:var(--brand-soft);border-color:#a9c2b2}

/* 操作历史 */
.history-row{display:flex;align-items:center;gap:10px;padding:11px 0;border-bottom:1px solid var(--line-soft);font-size:13px;flex-wrap:wrap}
.history-row:last-child{border-bottom:none}
.h-icon{font-size:14px;flex-shrink:0}
.h-label{font-weight:500;min-width:72px}
.h-outcome{font-size:11px;padding:2px 9px;border-radius:999px;font-weight:500}
.h-outcome.success{background:var(--ok-bg);color:var(--ok)}
.h-outcome.unconfirmed{background:var(--warn-bg);color:var(--warn)}
.h-outcome.error{background:var(--bad-bg);color:var(--bad)}
.h-time{color:var(--muted);font-size:11px;margin-left:auto;font-variant-numeric:tabular-nums}
.h-loc{font-size:11px;color:var(--brand);text-decoration:none}
.h-loc:hover{text-decoration:underline}

/* 登录、页脚、弹窗 */
.login{max-width:430px;margin:80px auto;padding:34px}
.login h1{font-size:28px}
footer{display:flex;justify-content:space-between;padding:14px 0 34px;font-size:10px;letter-spacing:1px;color:var(--muted);gap:15px}
dialog{max-width:420px;width:calc(100% - 32px);border:1px solid var(--line);border-radius:var(--radius);padding:26px;color:var(--ink);box-shadow:0 20px 60px #14282033}
dialog::backdrop{background:#14282070;backdrop-filter:blur(3px)}
.dialog-actions{display:flex;justify-content:flex-end;gap:10px}

@media(max-width:960px){
  .layout{grid-template-columns:1fr}
  .side-column{position:static}
  .highlights{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:600px){
  .shell{padding:0 16px}
  .topbar{height:64px}
  .hero{flex-direction:column;align-items:stretch;padding:24px 0 16px}
  .hero .primary{width:100%}
  h1{font-size:26px}
  .card{padding:18px}
  .stat{padding:14px}
  .stat-value{font-size:22px}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .group-tire .metrics{max-width:none}
  .metric .value{font-size:18px}
  footer{flex-direction:column}
  .h-time{margin-left:0;width:100%}
  .login{margin:40px auto;padding:24px}
}

/* 值语义着色：门窗锁正常为绿点，异常为橙色 */
.metric.tone-ok .value::before,.metric.tone-warn .value::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:7px;vertical-align:middle;background:#7fb069}
.metric.tone-warn{background:var(--warn-bg);border-color:#efd9a6}
.metric.tone-warn .value::before{background:#e0894f}
.group-security .metrics{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}
.group-security .metric .value{font-size:16px}
.metric .sub{display:block;margin-top:4px;font-size:11px;color:var(--muted)}

/* 错误提示卡 */
.alert{border:1px solid #efcabe;background:var(--bad-bg);border-left:4px solid var(--bad);border-radius:12px;padding:16px 18px;margin-bottom:14px;color:var(--ink)}
.alert strong{display:block;color:var(--bad);font-size:15px;margin-bottom:4px}
.alert p{margin:0 0 8px;color:var(--ink-2);font-size:13px}
.alert small{display:block;color:var(--muted);font-size:11px;margin-bottom:10px;overflow-wrap:anywhere}
.alert-actions{display:flex;gap:8px;flex-wrap:wrap}

/* 关键指标副文本 */
.stat-sub{font-size:11px;color:var(--muted);line-height:1.4}
.stat:first-child .stat-sub{color:#b9d3c6}

/* 用车统计 */
.kv{display:grid;grid-template-columns:max-content 1fr;gap:8px 18px;font-size:13px;margin:4px 0 6px}
.kv .k{color:var(--muted)}
.kv .v{font-variant-numeric:tabular-nums}
#stats-body h3{margin-top:20px}
.bars{display:flex;align-items:flex-end;gap:6px;height:130px;padding:4px 0}
.bar-col{flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;height:100%;gap:4px}
.bar-track{flex:1;width:100%;max-width:28px;display:flex;align-items:flex-end;background:var(--line-soft);border-radius:6px;overflow:hidden}
.bar-track i{display:block;width:100%;background:#8fb768;border-radius:6px 6px 0 0}
.bar-track i.merged{background:repeating-linear-gradient(45deg,#8fb768 0 4px,#b8d39b 4px 8px)}
.bar-v,.bar-d{font-size:10px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.refuels{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--ink-2)}
.warn-text{color:var(--warn)}
#stats-body .hint{margin-top:14px}

/* 保养提醒 */
.maint-row{display:grid;grid-template-columns:minmax(120px,1.1fr) 2fr auto;gap:14px;align-items:center;padding:12px 14px;border:1px solid var(--line-soft);border-radius:12px;background:#f8faf6;margin-bottom:8px}
.maint-row.tone-bad{background:var(--bad-bg);border-color:#efcabe}
.maint-row.tone-warn{background:var(--warn-bg);border-color:#efd9a6}
.maint-main strong{display:block;font-size:14px;font-weight:600}
.maint-main small,.maint-info small{display:block;font-size:11px;color:var(--muted);margin-top:3px}
.maint-due{font-size:13px;font-variant-numeric:tabular-nums}
.maint-side{display:flex;align-items:center;gap:8px}
.maint-side .status{margin:0}
.maint-head,.maint-edit-row{display:grid;grid-template-columns:minmax(100px,1.6fr) 1fr .7fr 1fr 1.3fr 34px;gap:6px;align-items:center}
.maint-head{font-size:11px;color:var(--muted);margin:10px 0 4px}
.maint-edit-row{margin-bottom:6px}
.maint-edit-row input{margin:0;padding:8px 9px;font-size:13px}
.maint-actions{display:flex;gap:8px;align-items:center;margin-top:10px;flex-wrap:wrap}
.maint-actions .spacer{flex:1}
@media(max-width:600px){
  .maint-row{grid-template-columns:1fr auto}
  .maint-info{grid-column:1/-1;grid-row:2}
  .maint-head{display:none}
  .maint-edit-row{grid-template-columns:1fr 1fr 1fr;padding:8px;border:1px solid var(--line-soft);border-radius:10px}
  .maint-edit-row input:first-child{grid-column:1/-1}
  .kv{grid-template-columns:1fr}
  .kv .v{margin-bottom:6px}
}

/* 远程控制放在主栏总览下方：宽屏四列，窄屏两列 */
#control-card .controls{grid-template-columns:repeat(4,minmax(0,1fr));margin-bottom:12px}
@media(max-width:600px){#control-card .controls{grid-template-columns:1fr 1fr}}