/* 中转站工作台：深浅色跟随系统；手机单列、两边 16px */
:root {
  color-scheme: light;
  --bg: #f4f3f0;
  --surface: #fcfcfb;
  --line: #e2e0da;
  --text: #0b0b0b;
  --text-2: #52514e;
  --muted: #6d6c67;
  --s1: #2a78d6;
  --s2: #eb6834;
  --good: #0ca30c;
  --warn: #fab219;
  --crit: #d03b3b;
  --crit-text: #b42828;
  --warn-bg: #fff4d6;
  --crit-bg: #fde8e8;
  --track: #e9e7e1;
  --btn: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #121211;
    --surface: #1a1a19;
    --line: #2f2f2c;
    --text: #f0efec;
    --text-2: #c3c2b7;
    --muted: #9b9a92;
    --s1: #3987e5;
    --s2: #d95926;
    --crit-text: #f08080;
    --warn-bg: #3a2f10;
    --crit-bg: #3b1818;
    --track: #2c2c2a;
    --btn: #232321;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
h1 { font-size: 20px; margin: 0; }
h2 { font-size: 16px; margin: 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.num, .big, dd { font-variant-numeric: tabular-nums; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 16px; }
.top { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 14px; }
.fresh { margin: 4px 0 0; font-size: 13px; padding: 2px 8px; border-radius: 6px; display: inline-block; }
.fresh.ok { color: var(--text-2); }
.fresh.warn { background: var(--warn-bg); color: var(--text); border-left: 4px solid var(--warn); }
.fresh.crit { background: var(--crit-bg); color: var(--crit-text); border-left: 4px solid var(--crit); font-weight: 600; }
.grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; }
.pair { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); gap: 14px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 16px; min-width: 0; }
.card.wide { grid-column: 1 / -1; }
.card > header { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; margin-bottom: 10px; }
.big { font-size: 32px; font-weight: 650; letter-spacing: -0.5px; margin: 4px 0 2px; }
.big.low { color: var(--crit-text); }
.kv { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; margin: 12px 0; font-size: 14px; }
.kv dt { color: var(--text-2); }
.kv dd { margin: 0; text-align: right; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.btn {
  display: inline-block; padding: 7px 12px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--btn); color: var(--text); text-decoration: none; font: inherit; font-size: 14px; cursor: pointer; white-space: nowrap;
}
.btn:hover { border-color: var(--s1); }
.btn.primary { background: var(--s1); border-color: var(--s1); color: #fff; }
.btn:focus-visible, input:focus-visible, summary:focus-visible { outline: 2px solid var(--s1); outline-offset: 2px; }
.badge { font-size: 12px; font-weight: 600; padding: 1px 6px; border-radius: 6px; vertical-align: middle; white-space: nowrap; }
.badge.warn { background: var(--warn-bg); color: var(--text); border: 1px solid var(--warn); }
.badge.crit { background: var(--crit-bg); color: var(--crit-text); border: 1px solid var(--crit); }
.badge-line.warn { background: var(--warn-bg); border-left: 4px solid var(--warn); padding: 4px 8px; border-radius: 6px; font-size: 13px; }
.crit-text { color: var(--crit-text); }
.badge-line.info { background: var(--track); border-left: 4px solid var(--muted); padding: 4px 8px; border-radius: 6px; font-size: 13px; }

/* 用量条 */
.meters { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px 24px; }
.meter-head { display: flex; justify-content: space-between; gap: 8px; font-size: 14px; }
.meter-head .num { color: var(--text-2); white-space: nowrap; }
svg.bar { display: block; width: 100%; height: 12px; margin-top: 4px; }
svg.bar .track { fill: var(--track); }
svg.bar .fill.ok { fill: var(--s1); }
svg.bar .fill.warn { fill: var(--warn); }
svg.bar .fill.crit { fill: var(--crit); }
svg.bar .mark { stroke: var(--text-2); stroke-width: 0.8; vector-effect: non-scaling-stroke; }

/* 余额走势 */
.spark { margin: 8px 0 0; }
.spark svg { display: block; width: 100%; height: 64px; overflow: visible; }
.spark .line { fill: none; stroke: var(--s1); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; vector-effect: non-scaling-stroke; }
.spark .dot, .spark .last { fill: var(--s1); stroke: var(--surface); stroke-width: 2; }
.spark .thr { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 4 3; vector-effect: non-scaling-stroke; }
.spark .hit { fill: transparent; }
.spark .hit:hover { fill: var(--s1); fill-opacity: 0.18; }
.spark figcaption { display: flex; justify-content: space-between; gap: 8px; flex-wrap: wrap; }

/* 每天花费 */
.spend { margin: 0; }
.spend svg { display: block; width: 100%; height: 150px; }
.spend > p { margin: 0 0 6px; }
.axis-row { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); margin-top: 4px; font-variant-numeric: tabular-nums; }
.spend .s1 { fill: var(--s1); }
.spend .s2 { fill: var(--s2); }
.spend .nodata { fill: var(--track); }
.spend .hitbar { fill: transparent; }
.spend g:hover .hitbar { fill: var(--text); fill-opacity: 0.06; }
.spend .grid { stroke: var(--line); stroke-width: 1; vector-effect: non-scaling-stroke; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 13px; color: var(--text-2); margin-top: 6px; }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 6px; vertical-align: -1px; }
.sw.s1 { background: var(--s1); }
.sw.s2 { background: var(--s2); }
details { margin-top: 6px; font-size: 13px; }
summary { cursor: pointer; color: var(--text-2); }
table { border-collapse: collapse; width: 100%; margin-top: 6px; }
th, td { text-align: left; padding: 3px 6px; border-bottom: 1px solid var(--line); }
td.num { text-align: right; }

/* 提醒 */
.alerts { list-style: none; margin: 0; padding: 0; }
.alerts li { display: grid; grid-template-columns: 96px 1fr; gap: 2px 12px; padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.alerts li span:last-child { grid-column: 2; color: var(--text-2); overflow-wrap: anywhere; }
.alerts .when { color: var(--muted); font-variant-numeric: tabular-nums; }
.alerts .lv-act b::before { content: "⛔ "; }
.alerts .lv-warn b::before { content: "⚠ "; }
.alerts .lv-info b::before { content: "ℹ "; }
footer { margin: 18px 0 8px; }
.logout { margin: 0; }

/* 登录 */
.login { max-width: 360px; margin: 12vh auto 0; padding: 0 16px; }
.login form { display: grid; gap: 14px; margin-top: 18px; }
.login label { display: grid; gap: 6px; font-size: 14px; color: var(--text-2); }
.login input { font: inherit; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--text); width: 100%; }
.err { background: var(--crit-bg); color: var(--crit-text); padding: 8px 10px; border-radius: 8px; }

@media (max-width: 520px) {
  .big { font-size: 28px; }
  .alerts li { grid-template-columns: 1fr; }
  .alerts li span:last-child { grid-column: 1; }
}