/* ============================================================
   台州学院 · 教室使用态势大屏
   蓝图语言：墨蓝纸面 + 细线 + 角标刻线；琥珀只留给"正在上课"
   ============================================================ */

:root {
  --ink: #0c2334;
  --ink-2: #123049;
  --ink-3: #17394f;
  --line: #2a5876;
  --line-soft: #1b3e57;
  --grid: rgba(56, 108, 140, 0.46);
  --frost: #f2f8fd;
  --mist: #a9c2d6;
  --dim: #7d97ac;
  --celadon: #5ee0ea;
  --amber: #ffb35f;
  --sans: "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans SC",
    "Microsoft YaHei", system-ui, sans-serif;
  --num: "DIN Alternate", "Bahnschrift SemiCondensed", "Helvetica Neue", "Arial Narrow", var(--sans);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: #061420;
  overflow: hidden;
  color: var(--frost);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

button { font-family: inherit; }
:focus-visible { outline: 1px solid var(--celadon); outline-offset: 2px; }

#viewport {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
}

#stage {
  position: relative;
  width: 1920px;
  height: 1080px;
  flex: none;
  padding: 22px 26px;
  display: flex;
  flex-direction: column;
  transform-origin: top left;
  background:
    radial-gradient(1400px 760px at 46% -14%, rgba(94, 224, 234, 0.075), transparent 68%),
    repeating-linear-gradient(0deg, var(--grid) 0 1px, transparent 1px 46px),
    repeating-linear-gradient(90deg, var(--grid) 0 1px, transparent 1px 46px),
    var(--ink);
}

/* ---------- 顶栏 ---------- */

.topbar {
  flex: none;
  height: 78px;
  display: flex;
  align-items: center;
  gap: 34px;
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 14px; }

.brand-mark { width: 42px; height: 42px; color: var(--celadon); opacity: 0.92; }

.brand-text h1 {
  margin: 0;
  font-size: 27px;
  font-weight: 600;
  letter-spacing: 0.14em;
  line-height: 1;
}

.brand-text p {
  margin: 7px 0 0;
  font-size: 11.5px;
  color: var(--mist);
  letter-spacing: 0.42em;
  line-height: 1;
}

.campus-switch { display: flex; border: 1px solid var(--line); }

.campus-btn {
  height: 36px;
  padding: 0 19px;
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  color: var(--mist);
  font-size: 13.5px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: background 0.18s, color 0.18s;
}
.campus-btn:last-child { border-right: 0; }
.campus-btn:hover { color: var(--frost); background: rgba(94, 224, 234, 0.07); }
.campus-btn.is-on { background: var(--celadon); color: #050e18; font-weight: 600; }

.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 26px; }

.feed-sync { font-family: var(--num); font-size: 12px; color: var(--mist); letter-spacing: 0.04em; font-variant-numeric: tabular-nums; white-space: nowrap; }

.clock { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }
.clock-time {
  font-family: var(--num);
  font-size: 29px;
  letter-spacing: 0.04em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.clock-date { font-size: 11.5px; color: var(--mist); letter-spacing: 0.08em; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 17px;
  border: 1px solid rgba(94, 224, 234, 0.5);
  background: rgba(94, 224, 234, 0.08);
  color: var(--celadon);
  font-size: 13.5px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background 0.18s, color 0.18s, border-color 0.18s;
}
.btn svg { width: 15px; height: 15px; }
.btn:hover { background: rgba(94, 224, 234, 0.18); border-color: var(--celadon); }
.btn[aria-pressed="true"] { background: var(--celadon); border-color: var(--celadon); color: #050e18; font-weight: 600; }

.btn-quiet {
  height: 32px;
  padding: 0 14px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--mist);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color 0.18s, border-color 0.18s, background 0.18s;
}
.btn-quiet:hover { color: var(--frost); border-color: rgba(94, 224, 234, 0.5); }
.btn-quiet.is-hot { background: var(--amber); border-color: var(--amber); color: #050e18; font-weight: 600; }
.btn-quiet[disabled] { opacity: 0.35; cursor: default; }

.icon-btn {
  width: 30px;
  height: 30px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--mist);
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
}
.icon-btn:hover { color: var(--frost); border-color: rgba(94, 224, 234, 0.5); }

/* ---------- 主体栅格 ---------- */

.view-live {
  flex: 1;
  min-height: 0;
  margin: 14px 0;
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr) 348px;
  gap: 14px;
}

.rail { display: grid; gap: 14px; min-height: 0; }
.rail-left { grid-template-rows: 282px 246px minmax(0, 1fr); }
.rail-right { grid-template-rows: minmax(0, 1.62fr) minmax(0, 1fr); }
.center {
  display: grid;
  grid-template-rows: 282px minmax(0, 1fr);
  gap: 14px;
  min-height: 0;
}

/* ---------- 面板 ---------- */

.panel {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 0;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(24, 62, 90, 0.92), rgba(13, 36, 54, 0.95));
}

.panel::before,
.panel::after {
  content: "";
  position: absolute;
  width: 13px;
  height: 13px;
  pointer-events: none;
  opacity: 0.65;
}
.panel::before { top: -1px; left: -1px; border-top: 1px solid var(--celadon); border-left: 1px solid var(--celadon); }
.panel::after { bottom: -1px; right: -1px; border-bottom: 1px solid var(--celadon); border-right: 1px solid var(--celadon); }

.p-head {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px 10px;
  border-bottom: 1px solid var(--line-soft);
}
.p-head h2 { margin: 0; font-size: 14.5px; font-weight: 600; letter-spacing: 0.14em; white-space: nowrap; }
.p-note {
  font-size: 11.5px;
  color: var(--dim);
  letter-spacing: 0.06em;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* ---------- 概览 ---------- */

.kpi-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 16px 16px 8px;
}

.kpi-num { display: flex; align-items: baseline; gap: 6px; font-family: var(--num); }
.kpi-num b {
  font-size: 60px;
  line-height: 0.9;
  font-weight: 600;
  color: var(--amber);
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}
.kpi-num i { font-style: normal; font-size: 15px; color: var(--mist); }

.kpi-label { margin-top: 9px; font-size: 12px; color: var(--mist); letter-spacing: 0.03em; }
.kpi-label em { font-style: normal; color: var(--frost); font-family: var(--num); font-size: 13.5px; }
.kpi-seats { margin-top: 5px; font-size: 11.5px; color: var(--dim); }
.kpi-seats b { color: var(--celadon); font-family: var(--num); font-size: 13px; }

.donut { position: relative; width: 106px; height: 106px; flex: none; }
.donut svg { width: 100%; height: 100%; display: block; }
.donut-track { stroke: rgba(94, 224, 234, 0.13); }
.donut-value { stroke: var(--amber); transition: stroke-dasharray 0.9s cubic-bezier(0.2, 0.7, 0.2, 1); }
.donut-text {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
}
.donut-text b { font-family: var(--num); font-size: 21px; font-variant-numeric: tabular-nums; }
.donut-text span { font-size: 10.5px; color: var(--dim); letter-spacing: 0.12em; }

.kpi-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 10px 16px 0;
  border-top: 1px solid var(--line-soft);
}
.kpi-meta > div { padding: 11px 0 0; border-right: 1px solid var(--line-soft); }
.kpi-meta > div:not(:first-child) { padding-left: 14px; }
.kpi-meta > div:last-child { border-right: 0; }
.kpi-meta b {
  display: block;
  font-family: var(--num);
  font-size: 20px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.kpi-meta span { font-size: 11px; color: var(--dim); letter-spacing: 0.08em; }

/* ---------- 曲线 ---------- */

.curve-wrap { flex: 1; min-height: 0; padding: 12px 14px 0; }
#curve { display: block; width: 100%; height: 100%; }
.curve-axis {
  flex: none;
  display: flex;
  justify-content: space-between;
  padding: 5px 14px 9px;
  font-family: var(--num);
  font-size: 10.5px;
  color: var(--dim);
  letter-spacing: 0.04em;
}

/* ---------- 类型构成 ---------- */

.type-bars {
  flex: 1;
  min-height: 0;
  padding: 10px 16px 12px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 9px;
}
.type-row { display: grid; grid-template-columns: 76px 1fr 38px; align-items: center; gap: 10px; }
.type-name { font-size: 12px; color: var(--mist); letter-spacing: 0.03em; }
.type-track { height: 6px; background: rgba(169, 194, 214, 0.13); position: relative; }
.type-fill { position: absolute; inset: 0 auto 0 0; background: rgba(94, 224, 234, 0.7); transition: width 0.6s; }
.type-val {
  text-align: right;
  font-family: var(--num);
  font-size: 12.5px;
  color: var(--frost);
  font-variant-numeric: tabular-nums;
}

/* ---------- 轮播 ---------- */

.hero-nav { display: flex; align-items: center; gap: 12px; }
.hero-nav #hero-count { font-size: 14px; color: var(--frost); letter-spacing: 0.04em; }
.hero-arrow {
  width: 26px;
  height: 22px;
  padding: 0;
  border: 1px solid rgba(169, 194, 214, 0.35);
  background: rgba(169, 194, 214, 0.08);
  color: var(--mist);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.hero-arrow:hover { color: var(--amber); border-color: rgba(255, 179, 95, 0.6); background: rgba(255, 179, 95, 0.1); }
.hero-arrow:active { transform: translateY(1px); }
.dots { display: flex; gap: 5px; }
.dot {
  width: 16px;
  height: 3px;
  padding: 0;
  border: 0;
  background: rgba(169, 194, 214, 0.28);
  cursor: pointer;
  transition: width 0.25s, background 0.25s;
}
.dot:hover { background: rgba(169, 194, 214, 0.55); }
.dot.is-on { width: 26px; background: var(--amber); }
.dot-count {
  font-family: var(--num);
  font-size: 11.5px;
  color: var(--mist);
  letter-spacing: 0.1em;
  font-variant-numeric: tabular-nums;
}

.hero-stage { flex: 1; min-height: 0; position: relative; }

.slide {
  position: absolute;
  inset: 0;
  padding: 12px 22px 12px;
  display: flex;
  flex-direction: column;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.45s ease, transform 0.45s ease;
  pointer-events: none;
}
.slide.is-on { opacity: 1; transform: none; pointer-events: auto; }

.slide-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; }

.slide-room {
  font-size: 40px;
  font-weight: 600;
  line-height: 1.04;
  color: var(--amber);
  letter-spacing: 0.01em;
  word-break: break-all;
}
.slide-where { margin-top: 7px; font-size: 14px; color: var(--mist); letter-spacing: 0.04em; }
.slide-where i { font-style: normal; color: var(--dim); margin: 0 7px; }

.slide-clock {
  flex: none;
  text-align: right;
  font-family: var(--num);
  font-size: 16px;
  color: var(--frost);
  letter-spacing: 0.04em;
  line-height: 1.35;
}
.slide-clock span { display: block; font-size: 12px; color: var(--dim); margin-top: 4px; letter-spacing: 0.06em; }

.slide-course {
  margin-top: 11px;
  font-size: 26px;
  font-weight: 500;
  color: var(--frost);
  letter-spacing: 0.02em;
  line-height: 1.25;
}
.slide-teacher { margin-top: 5px; font-size: 14.5px; color: var(--mist); letter-spacing: 0.03em; }
.slide-class { margin-top: 4px; font-family: var(--num); font-size: 12px; color: var(--dim); letter-spacing: 0.03em; }

.slide-bar { margin-top: auto; height: 3px; background: rgba(169, 194, 214, 0.16); position: relative; }
.slide-bar i { position: absolute; left: 0; top: 0; bottom: 0; background: var(--amber); transition: width 0.8s linear; }
.slide-bar-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-family: var(--num);
  font-size: 12px;
  color: var(--dim);
  letter-spacing: 0.06em;
  font-variant-numeric: tabular-nums;
}

.slide-empty { align-items: flex-start; justify-content: center; }
.slide-empty h3 { margin: 0; font-size: 27px; font-weight: 500; letter-spacing: 0.06em; color: var(--mist); }
.slide-empty p { margin: 10px 0 0; font-size: 14px; color: var(--dim); line-height: 1.7; max-width: 46ch; }

/* ---------- 楼栋占用 ---------- */

.bldg-bars {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 4px 10px 8px;
  display: flex;
  flex-direction: column;
}
.bldg-row {
  display: grid;
  grid-template-columns: 116px 1fr 82px;
  align-items: center;
  gap: 12px;
  padding: 0 6px;
  height: 30px;
  flex: none;
  border: 0;
  border-bottom: 1px solid rgba(42, 88, 118, 0.45);
  background: transparent;
  text-align: left;
  cursor: pointer;
}
.bldg-row:hover { background: rgba(94, 224, 234, 0.06); }
.bldg-row.is-idle .bldg-name { color: var(--mist); }
.bldg-name { font-size: 12.5px; color: var(--frost); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bldg-track { height: 8px; background: rgba(169, 194, 214, 0.1); position: relative; display: flex; }
.bldg-track i { height: 100%; background: var(--amber); transition: width 0.5s; }
.bldg-track u { height: 100%; background: rgba(169, 194, 214, 0.22); }
.bldg-val {
  text-align: right;
  font-family: var(--num);
  font-size: 12px;
  color: var(--dim);
  font-variant-numeric: tabular-nums;
}
.bldg-val b { color: var(--amber); font-weight: 600; }

/* ---------- 实时课堂 ---------- */

.live-rows, .next-rows { flex: 1; min-height: 0; overflow: auto; }
.live-row {
  display: grid;
  grid-template-columns: 2px 1fr auto;
  gap: 12px;
  padding: 10px 14px 10px 10px;
  border-bottom: 1px solid rgba(42, 88, 118, 0.45);
  align-items: stretch;
}
.live-row .mark { background: var(--amber); opacity: 0.75; }
.live-room {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--frost);
  letter-spacing: 0.02em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tag {
  flex: none;
  font-size: 10px;
  font-weight: 400;
  color: var(--celadon);
  border: 1px solid rgba(94, 224, 234, 0.32);
  padding: 1px 5px;
  letter-spacing: 0.04em;
}
.live-course {
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--mist);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.live-meta {
  margin-top: 4px;
  font-family: var(--num);
  font-size: 11px;
  color: var(--dim);
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}
.live-time {
  text-align: right;
  font-family: var(--num);
  font-size: 11.5px;
  color: var(--dim);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.live-time b { display: block; font-size: 13px; font-weight: 600; color: var(--amber); margin-bottom: 4px; }

.next-row {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  padding: 8px 14px;
  border-bottom: 1px solid rgba(42, 88, 118, 0.45);
}
.next-time { font-family: var(--num); font-size: 13.5px; color: var(--celadon); font-variant-numeric: tabular-nums; }
.next-course { font-size: 12.5px; color: var(--frost); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.next-where { margin-top: 3px; font-size: 11px; color: var(--dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.empty-line { padding: 22px 16px; font-size: 12.5px; color: var(--dim); line-height: 1.7; }

/* ---------- 底部时间轴 ---------- */

.timeline {
  flex: none;
  height: 86px;
  display: grid;
  grid-template-columns: 208px minmax(0, 1fr) 132px;
  align-items: center;
  gap: 20px;
  border-top: 1px solid var(--line);
}

.tl-day { display: flex; align-items: center; gap: 8px; }
.day-label {
  flex: 1;
  height: 30px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--frost);
  font-family: var(--num);
  font-size: 13.5px;
  letter-spacing: 0.05em;
  cursor: pointer;
  font-variant-numeric: tabular-nums;
}
.day-label:hover { border-color: var(--line); }
.day-label.is-off { color: var(--amber); }

.tl-track {
  position: relative;
  height: 58px;
  cursor: crosshair;
  border-bottom: 1px solid var(--line-soft);
}
.tl-bars { position: absolute; inset: 14px 0 0; display: flex; align-items: flex-end; gap: 1px; }
.tl-bar { flex: 1; background: rgba(94, 224, 234, 0.2); min-height: 1px; transition: background 0.2s; }
.tl-bar.is-on { background: rgba(94, 224, 234, 0.6); }
.tl-ticks { position: absolute; inset: auto 0 0; height: 14px; }
.tl-tick {
  position: absolute;
  bottom: 2px;
  font-family: var(--num);
  font-size: 9.5px;
  color: var(--dim);
  transform: translateX(-50%);
  letter-spacing: 0.04em;
}
.tl-marker {
  position: absolute;
  top: 6px;
  bottom: 0;
  left: 0;
  width: 0;
  border-left: 1px solid var(--amber);
  pointer-events: none;
}
.tl-marker::after {
  content: "";
  position: absolute;
  left: -3px;
  top: -4px;
  width: 7px;
  height: 7px;
  background: var(--amber);
}
.tl-marker-label {
  position: absolute;
  left: 6px;
  top: -14px;
  font-family: var(--num);
  font-size: 11px;
  color: var(--amber);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}
.tl-actions { display: flex; justify-content: flex-end; }

/* ---------- 教学楼档案 ---------- */

.view-archive {
  position: absolute;
  inset: 100px 26px 22px;
  z-index: 20;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: linear-gradient(180deg, #0d2638, #0b2231);
  animation: rise 0.32s ease both;
}
.view-archive[hidden] { display: none; }

@keyframes rise {
  from { transform: translateY(14px); }
}

.archive-head { flex: none; display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; }
.archive-head h2 { margin: 0; font-size: 24px; font-weight: 600; letter-spacing: 0.16em; }
.archive-head p { margin: 9px 0 0; font-size: 12.5px; color: var(--mist); letter-spacing: 0.05em; }

.archive-body { flex: 1; min-height: 0; display: grid; grid-template-columns: 396px minmax(0, 1fr); gap: 14px; }
.archive-list { overflow: auto; }
.bldg-list { padding: 6px; }

.bldg-card {
  display: block;
  width: 100%;
  padding: 11px 12px 12px;
  border: 1px solid transparent;
  border-bottom: 1px solid var(--line-soft);
  background: transparent;
  text-align: left;
  cursor: pointer;
  transition: background 0.16s, border-color 0.16s;
}
.bldg-card:hover { background: rgba(94, 224, 234, 0.06); }
.bldg-card.is-on { border-color: rgba(94, 224, 234, 0.5); background: rgba(94, 224, 234, 0.08); }
.bldg-card-top { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.bldg-card h3 { margin: 0; font-size: 14.5px; font-weight: 600; color: var(--frost); letter-spacing: 0.02em; }
.bldg-card .c-busy { font-family: var(--num); font-size: 11.5px; color: var(--amber); font-variant-numeric: tabular-nums; }
.bldg-card .c-meta {
  margin-top: 6px;
  font-family: var(--num);
  font-size: 11px;
  color: var(--dim);
  letter-spacing: 0.05em;
  font-variant-numeric: tabular-nums;
}
.c-bar { display: flex; gap: 1px; height: 4px; margin-top: 8px; }
.c-bar i { display: block; height: 100%; }

.archive-detail { overflow: auto; padding: 18px 22px 26px; }
.detail-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; }
.detail-head h3 { margin: 0; font-size: 26px; font-weight: 600; letter-spacing: 0.06em; }
.detail-head p { margin: 8px 0 0; font-size: 12px; color: var(--dim); letter-spacing: 0.06em; font-family: var(--num); }

.detail-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 16px 0 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.detail-metrics > div { padding: 12px 0 13px; border-right: 1px solid var(--line-soft); }
.detail-metrics > div:not(:first-child) { padding-left: 16px; }
.detail-metrics > div:last-child { border-right: 0; }
.detail-metrics b {
  display: block;
  font-family: var(--num);
  font-size: 23px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.detail-metrics span { font-size: 11px; color: var(--dim); letter-spacing: 0.08em; }

.detail-types { display: flex; flex-wrap: wrap; gap: 8px 10px; margin-top: 16px; }
.type-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 9px;
  border: 1px solid var(--line);
  font-size: 11.5px;
  color: var(--mist);
  letter-spacing: 0.03em;
}
.type-chip i { width: 6px; height: 6px; display: block; }
.type-chip b { font-family: var(--num); color: var(--frost); font-weight: 600; font-variant-numeric: tabular-nums; }

.floors { margin-top: 18px; }
.floor { display: grid; grid-template-columns: 62px minmax(0, 1fr); gap: 16px; padding: 14px 0; border-top: 1px solid var(--line-soft); }
.floor-no { font-family: var(--num); font-size: 30px; line-height: 1; color: rgba(94, 224, 234, 0.55); font-variant-numeric: tabular-nums; }
.floor-no small { display: block; margin-top: 6px; font-size: 9.5px; letter-spacing: 0.14em; color: var(--dim); font-family: var(--sans); }
.floor-rooms { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px 12px; }

.room-line {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  padding: 6px 9px;
  border: 1px solid transparent;
  border-left: 2px solid rgba(169, 194, 214, 0.25);
  background: rgba(169, 194, 214, 0.05);
}
.room-line.is-busy { background: rgba(255, 179, 95, 0.1); border-left-color: var(--amber); }
.room-name { font-size: 12px; color: var(--frost); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.room-type { display: block; margin-top: 2px; font-size: 10px; color: var(--dim); letter-spacing: 0.03em; }
.room-seats {
  font-family: var(--num);
  font-size: 12px;
  color: var(--mist);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.room-seats b { color: var(--frost); font-weight: 600; }

/* ---------- 课表查询 ---------- */

.view-query {
  position: absolute;
  inset: 100px 26px 22px;
  z-index: 20;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: linear-gradient(180deg, #0d2638, #0b2231);
  animation: rise 0.32s ease both;
}
.view-query[hidden] { display: none; }

.query-body { flex: 1; min-height: 0; display: grid; grid-template-columns: 396px minmax(0, 1fr); gap: 14px; }

.query-form { padding: 16px; gap: 0; overflow: auto; }

.q-pane { display: flex; flex-direction: column; }
.q-pane + .q-pane { margin-top: 18px; border-top: 1px dashed var(--line-soft); padding-top: 14px; }
.q-label { font-size: 11.5px; color: var(--dim); letter-spacing: 0.08em; margin: 12px 0 6px; }
.q-pane .q-label:first-child { margin-top: 0; }
.q-input {
  height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: rgba(12, 35, 52, 0.7);
  color: var(--frost);
  font: inherit;
  font-size: 13.5px;
  letter-spacing: 0.03em;
}
.q-input:focus { outline: 1px solid var(--celadon); outline-offset: 0; border-color: var(--celadon); }
select.q-input { cursor: pointer; }
.q-hint { margin: 8px 0 0; font-size: 11px; color: var(--dim); line-height: 1.6; }
.q-submit { margin-top: 16px; justify-content: center; }
.q-submit[disabled] { opacity: 0.45; cursor: default; }

.q-meta { margin-top: 18px; border-top: 1px solid var(--line-soft); padding-top: 12px; }
.q-meta b { display: block; font-size: 15px; color: var(--frost); font-weight: 600; letter-spacing: 0.02em; }
.q-meta span { display: block; margin-top: 5px; font-family: var(--num); font-size: 11.5px; color: var(--dim); font-variant-numeric: tabular-nums; }

.query-result { display: flex; flex-direction: column; min-height: 0; }
.q-days {
  flex: none;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding: 12px 14px 4px;
}
.q-chip {
  height: 26px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--mist);
  font-family: var(--num);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  cursor: pointer;
  font-variant-numeric: tabular-nums;
}
.q-chip:hover { color: var(--frost); border-color: rgba(94, 224, 234, 0.5); }
.q-chip.is-on { background: var(--celadon); border-color: var(--celadon); color: #0c2334; font-weight: 600; }

.q-list { flex: 1; min-height: 0; overflow: auto; padding: 6px 14px 16px; }

.q-day { margin-top: 14px; }
.q-day-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 7px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 13px;
  color: var(--frost);
  font-weight: 600;
  letter-spacing: 0.05em;
}
.q-day-head i { flex: 1; border-top: 1px dashed var(--line-soft); transform: translateY(-3px); }
.q-day-count { font-family: var(--num); font-size: 11.5px; font-weight: 400; color: var(--dim); }

.q-row {
  display: grid;
  grid-template-columns: 128px minmax(0, 1fr);
  gap: 14px;
  padding: 10px 10px 10px 12px;
  border-bottom: 1px solid rgba(42, 88, 118, 0.45);
  border-left: 2px solid rgba(94, 224, 234, 0.25);
}
.q-row:hover { background: rgba(94, 224, 234, 0.05); }
.q-time { font-family: var(--num); font-size: 12.5px; color: var(--celadon); line-height: 1.5; font-variant-numeric: tabular-nums; }
.q-time b { font-size: 14px; color: var(--frost); font-weight: 600; }
.q-time span { display: block; font-size: 11px; color: var(--dim); }
.q-course { font-size: 14px; color: var(--frost); font-weight: 600; letter-spacing: 0.02em; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.q-where { margin-top: 3px; font-size: 12px; color: var(--mist); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.q-cls { margin-top: 2px; font-family: var(--num); font-size: 10.5px; color: var(--dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 周日程表（教室近 7 天课程） */
.q-week {
  display: grid;
  grid-template-columns: minmax(112px, auto) repeat(7, minmax(0, 1fr));
  grid-auto-rows: minmax(54px, auto);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  min-width: 900px;
}
.q-w-corner { align-items: flex-start; justify-content: center; font-size: 14px; font-weight: 600; color: var(--mist); letter-spacing: 0.08em; }
.q-w-day {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 7px;
  padding: 9px 8px;
  background: var(--ink-2);
}
.q-w-day b { font-size: 16px; color: var(--mist); font-weight: 600; letter-spacing: 0.08em; }
.q-w-day span { font-family: var(--num); font-size: 12.5px; color: var(--dim); font-variant-numeric: tabular-nums; }
.q-w-day.is-today b { color: var(--celadon); }
.q-w-day.is-today span { color: var(--celadon); }
.q-w-slot {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 8px 6px;
  background: var(--ink-2);
}
.q-w-slot b { font-size: 14px; color: var(--frost); font-weight: 600; letter-spacing: 0.04em; white-space: nowrap; }
.q-w-slot span { font-family: var(--num); font-size: 12px; color: var(--dim); font-variant-numeric: tabular-nums; white-space: nowrap; }
/* 时段分隔线：第 6 节前（上午/下午）、第 10 节前（下午/晚间），整行覆盖不被打断 */
.q-w-divider {
  grid-column: 1 / -1;
  align-self: start;
  height: 0;
  border-top: 2px solid rgba(94, 224, 234, 0.6);
  pointer-events: none;
  z-index: 3;
}
.q-w-cell {
  min-height: 58px;
  padding: 6px;
  background: var(--ink);
  display: flex;
  flex-direction: column;
  justify-content: center; /* 课程块在格内垂直居中 */
  gap: 6px;
}
.q-w-cell.is-busy {
  padding: 0;           /* 课程块撑满整格，只保留一层框 */
  gap: 4px;
  background: transparent;
  box-shadow: none;
}
.q-w-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8px 10px;
  border: 1px solid rgba(255, 179, 95, 0.6);
  background: rgba(255, 179, 95, 0.1);
}
.q-w-course { font-size: 17px; color: var(--frost); font-weight: 700; line-height: 1.35; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.q-w-time { margin-top: 4px; font-family: var(--num); font-size: 13px; color: var(--celadon); letter-spacing: 0.04em; font-variant-numeric: tabular-nums; }
.q-w-teacher { margin-top: 3px; font-size: 13px; color: var(--amber); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- 提示 ---------- */

.toast {
  position: absolute;
  left: 50%;
  bottom: 34px;
  transform: translate(-50%, 12px);
  padding: 9px 16px;
  border: 1px solid rgba(255, 107, 87, 0.5);
  background: rgba(48, 14, 12, 0.94);
  color: #ffd8d0;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.24s, transform 0.24s;
  z-index: 40;
}
.toast.is-on { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 滚动条 ---------- */

.live-rows::-webkit-scrollbar,
.next-rows::-webkit-scrollbar,
.bldg-bars::-webkit-scrollbar,
.archive-list::-webkit-scrollbar,
.archive-detail::-webkit-scrollbar { width: 5px; height: 5px; }
.live-rows::-webkit-scrollbar-thumb,
.next-rows::-webkit-scrollbar-thumb,
.bldg-bars::-webkit-scrollbar-thumb,
.archive-list::-webkit-scrollbar-thumb,
.archive-detail::-webkit-scrollbar-thumb { background: rgba(169, 194, 214, 0.28); }
.live-rows::-webkit-scrollbar-track,
.next-rows::-webkit-scrollbar-track,
.bldg-bars::-webkit-scrollbar-track,
.archive-list::-webkit-scrollbar-track,
.archive-detail::-webkit-scrollbar-track { background: transparent; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
}