/* ClassClaw 网页工作台 · 山野青主题 */
:root {
  --primary: #176A52;
  --primary-dark: #0F503E;
  --primary-soft: #E9F4EE;
  --bg: #F7F7F1;
  --surface: rgba(255, 255, 255, 0.92);
  --text: #18332C;
  --muted: #667A73;
  --border: #DCE4DF;
  --danger: #A43D35;
  --warning: #B87819;
  --success: #23805F;
  --info: #2B5D8A;
  --radius-card: 18px;
  --radius-control: 10px;
  --shadow: 0 14px 40px rgba(26, 57, 48, 0.09);
  --font-num: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
}

h1, h2, h3 { margin: 0 0 4px; line-height: 1.35; }
h2 { font-size: 20px; }
h3 { font-size: 16px; }
p { margin: 4px 0; }
a { color: var(--primary); }
code { font-family: var(--font-num); font-size: 12px; background: var(--primary-soft); padding: 1px 6px; border-radius: 6px; word-break: break-all; }

.muted { color: var(--muted); }
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.row-gap { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.spacer { flex: 1; }

:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }

/* ---------- 按钮 ---------- */
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
button:disabled { opacity: 0.55; cursor: not-allowed; }
.primary, .secondary, .danger, .text-button {
  border-radius: var(--radius-control);
  padding: 8px 16px;
  font-weight: 600;
  transition: background 0.18s ease, transform 0.18s ease;
}
.primary { background: var(--primary); color: #fff; }
.primary:hover:not(:disabled) { background: var(--primary-dark); }
.secondary { background: #fff; border: 1px solid var(--border); color: var(--text); }
.secondary:hover:not(:disabled) { border-color: var(--primary); color: var(--primary); }
.danger { background: var(--danger); color: #fff; }
.danger:hover:not(:disabled) { filter: brightness(0.92); }
.text-button { color: var(--primary); padding: 4px 8px; }
.text-button:hover { background: var(--primary-soft); }

/* ---------- 登录页 ---------- */
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 22px;
  box-shadow: var(--shadow); padding: 36px; width: min(420px, 100%);
}
.login-card .brand-line { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.brand-mark {
  width: 42px; height: 42px; border-radius: 12px; background: var(--primary); color: #fff;
  display: grid; place-items: center; font-weight: 800; font-size: 20px;
}
.login-card form { display: grid; gap: 14px; margin-top: 18px; }
.login-hint { background: var(--primary-soft); border-radius: var(--radius-control); padding: 10px 12px; color: var(--primary-dark); font-size: 13px; }

/* ---------- App Shell ---------- */
.shell { display: grid; grid-template-columns: 248px 1fr; min-height: 100vh; }
.sidebar {
  background: #fff; border-right: 1px solid var(--border); padding: 18px 14px;
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.sidebar .brand-line { display: flex; gap: 10px; align-items: center; padding: 4px 8px 16px; }
.nav-group { margin: 10px 0 2px; }
.nav-group-title { font-size: 12px; color: var(--muted); padding: 8px 10px 2px; font-weight: 600; letter-spacing: 0.04em; }
.nav-item {
  display: flex; align-items: center; gap: 8px; width: 100%; text-align: left;
  padding: 8px 10px; border-radius: var(--radius-control); color: var(--text); font-weight: 500;
}
.nav-item:hover { background: var(--primary-soft); }
.nav-item.active { background: var(--primary); color: #fff; }

.main { display: flex; flex-direction: column; min-width: 0; }
.topbar {
  display: flex; align-items: center; gap: 14px; padding: 12px 22px;
  background: var(--surface); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 30; backdrop-filter: blur(6px);
}
.topbar .page-title { font-size: 16px; font-weight: 700; }
.topbar .page-sub { font-size: 12px; color: var(--muted); }
.topbar .class-chip { background: var(--primary-soft); color: var(--primary-dark); border-radius: 999px; padding: 3px 12px; font-weight: 600; font-size: 13px; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; background: #bbb; }
.status-dot.ok { background: var(--success); }
.status-dot.bad { background: var(--danger); }
.status-dot.warn { background: var(--warning); }
.topbar .today { color: var(--muted); font-size: 13px; }
.user-menu { position: relative; }
.user-menu-btn { display: flex; align-items: center; gap: 8px; padding: 5px 10px; border-radius: 999px; border: 1px solid var(--border); background: #fff; }
.avatar { width: 26px; height: 26px; border-radius: 50%; background: var(--primary); color: #fff; display: grid; place-items: center; font-size: 12px; font-weight: 700; }
.user-menu-pop {
  position: absolute; right: 0; top: calc(100% + 6px); background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius-control); box-shadow: var(--shadow); min-width: 180px; padding: 6px; z-index: 50;
}
.user-menu-pop button { display: block; width: 100%; text-align: left; padding: 8px 10px; border-radius: 8px; }
.user-menu-pop button:hover { background: var(--primary-soft); }

.content { padding: 22px; max-width: 1280px; width: 100%; margin: 0 auto; }
.hamburger { display: none; }

/* ---------- 卡片与页面 ---------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-card); box-shadow: var(--shadow); padding: 18px 20px; margin-bottom: 18px; }
.card > h3 { margin-bottom: 10px; }
.page-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 14px; margin-bottom: 18px; flex-wrap: wrap; }
.page-desc { color: var(--muted); margin: 0; }
.page-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.metric-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin: 12px 0; }
.metric-card { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 14px 16px; display: flex; flex-direction: column; gap: 2px; }
.metric-value { font-size: 24px; font-weight: 800; font-family: var(--font-num); color: var(--primary-dark); }
.metric-label { color: var(--muted); font-size: 13px; }
.metric-sub { font-size: 12px; color: var(--muted); }
.metric-card.tone-error .metric-value { color: var(--danger); }
.metric-card.tone-warn .metric-value { color: var(--warning); }

/* ---------- 表单 ---------- */
.field { display: grid; gap: 4px; margin-bottom: 12px; }
.field > span { font-weight: 600; font-size: 13px; }
input, select, textarea {
  font: inherit; padding: 8px 10px; border: 1px solid var(--border); border-radius: var(--radius-control);
  background: #fff; color: var(--text); width: 100%;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); outline: none; box-shadow: 0 0 0 3px rgba(23, 106, 82, 0.12); }
input[type="date"], input[type="datetime-local"] {
  min-height: 42px; padding: 8px 12px; border-color: #C9D8D1;
  background: linear-gradient(180deg, #fff, #F8FBF9); color-scheme: light;
  font-family: var(--font-num); letter-spacing: 0.02em;
}
input[type="date"]:hover, input[type="datetime-local"]:hover { border-color: #8DB4A4; background: #fff; }
input[type="date"]::-webkit-calendar-picker-indicator, input[type="datetime-local"]::-webkit-calendar-picker-indicator {
  cursor: pointer; padding: 6px; border-radius: 8px; background-color: var(--primary-soft); opacity: 0.85;
}
.smart-select { position: relative; width: 100%; min-width: 130px; }
.smart-select-native { position: absolute !important; width: 1px !important; height: 1px !important; opacity: 0; pointer-events: none; }
.smart-select-input { min-height: 42px; padding-right: 34px; background: linear-gradient(180deg, #fff, #F8FBF9); }
.smart-select-arrow { position: absolute; right: 11px; top: 50%; transform: translateY(-54%); color: var(--muted); pointer-events: none; font-size: 16px; }
.smart-select-menu {
  position: absolute; z-index: 180; left: 0; right: 0; top: calc(100% + 5px); max-height: 260px; overflow-y: auto;
  padding: 5px; border: 1px solid #BDD1C8; border-radius: 12px; background: #fff; box-shadow: 0 14px 32px rgba(26, 58, 46, 0.16);
}
.smart-select-option { width: 100%; padding: 8px 10px; border-radius: 8px; text-align: left; color: var(--text); background: transparent; }
.smart-select-option:hover, .smart-select-option.active { background: var(--primary-soft); color: var(--primary-dark); }
.smart-select-option.selected { font-weight: 700; }
.smart-select-empty { padding: 12px; text-align: center; color: var(--muted); font-size: 13px; }

/* ---------- 成绩统计图表（纯 CSS，无第三方库） ---------- */
.chart-box { display: grid; gap: 8px; padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: #fff; }
.chart-subject-title { font-weight: 800; font-size: 13px; color: #385249; margin-top: 4px; }
.chart-bar-row { display: grid; grid-template-columns: 84px 1fr 64px; align-items: center; gap: 10px; font-size: 13px; }
.chart-bar-label { color: var(--muted); }
.chart-bar-track { height: 12px; border-radius: 999px; background: #EDF2EF; overflow: hidden; }
.chart-bar-fill { height: 100%; border-radius: 999px; transition: width 0.3s ease; }
.tone-primary { background: var(--primary); }
.tone-ok { background: var(--success); }
.tone-warn { background: var(--warning); }
.chart-bar-value { text-align: right; color: var(--text); font-variant-numeric: tabular-nums; }
.chart-stack { display: flex; height: 22px; border-radius: 8px; overflow: hidden; background: #EDF2EF; }
.chart-stack-seg { display: grid; place-items: center; color: #fff; font-size: 12px; font-weight: 700; min-width: 20px; }
.chart-stack-empty { display: grid; place-items: center; width: 100%; color: var(--muted); font-size: 12px; }
.seg-danger { background: var(--danger); }
.seg-warn { background: var(--warning); }
.seg-info { background: var(--info); }
.seg-soft { background: #7FA893; }
.seg-ok { background: var(--success); }
.chart-legend { display: flex; flex-wrap: wrap; gap: 12px; font-size: 12px; color: var(--muted); }
.chart-legend-dot { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }
.chart-meta { margin-top: 10px; font-size: 12px; }
.event-analysis-preview {
  display: grid; gap: 4px; margin: 12px 0; padding: 12px 14px; border: 1px solid #BFD8CC;
  border-radius: 12px; background: var(--primary-soft);
}
.attendance-summary-strip {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 10px;
  padding: 10px 12px; border: 1px solid #CFE0D8; border-radius: 12px; background: var(--primary-soft);
}
.attendance-summary-strip .secondary { margin-left: auto; }
.attendance-options { display: inline-flex; gap: 4px; padding: 3px; border-radius: 10px; background: #EDF2EF; min-width: 290px; }
.attendance-option { flex: 1; padding: 6px 10px; border-radius: 8px; color: var(--muted); background: transparent; white-space: nowrap; }
.attendance-option.active { color: #fff; background: var(--primary); box-shadow: 0 2px 6px rgba(23, 106, 82, 0.2); }
.attendance-option.status-late.active { background: #A66A18; }
.attendance-option.status-absent.active { background: var(--danger); }
.attendance-option.status-leave.active { background: var(--info); }
.seating-version-bar { display: grid; grid-template-columns: 1fr minmax(240px, 360px); gap: 18px; align-items: center; }
.seating-version-bar .field { margin: 0; }
.seating-version-row, .duty-rule-row {
  display: flex; justify-content: space-between; align-items: center; gap: 14px;
  padding: 11px 0; border-bottom: 1px solid var(--border);
}
.seating-version-row:last-child, .duty-rule-row:last-child { border-bottom: 0; }
.score-picker { display: inline-flex; gap: 3px; padding: 3px; border-radius: 10px; background: #EDF2EF; }
.score-button { min-width: 30px; padding: 5px 7px; border-radius: 7px; color: var(--muted); background: transparent; }
.score-button:hover, .score-button.active { color: #fff; background: var(--primary); }
.field-hint { color: var(--muted); font-size: 12px; }
.field-error { color: var(--danger); font-size: 12px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 0 16px; }
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; align-items: end; margin-bottom: 14px; }
.filter-bar .field { margin-bottom: 0; min-width: 140px; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.chip {
  border: 1px solid var(--border); background: #fff; border-radius: 999px; padding: 5px 14px; font-weight: 500;
}
.chip:hover { border-color: var(--primary); color: var(--primary); }
.chip.active { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-card); background: #fff; }
.data-table { width: 100%; border-collapse: collapse; min-width: 560px; }
.data-table th, .data-table td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
.data-table thead th { position: sticky; top: 0; background: var(--primary-soft); color: var(--primary-dark); font-size: 13px; z-index: 1; }
.data-table tbody tr:hover { background: #F4F8F5; }
.pagination { display: flex; gap: 12px; align-items: center; margin-top: 12px; }
.page-info { color: var(--muted); font-size: 13px; }

/* ---------- 标签 ---------- */
.tag { display: inline-block; padding: 1px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; background: #EEF1EE; color: var(--muted); border: none; }
.tag-ok { background: var(--primary-soft); color: var(--success); }
.tag-error { background: #F7E6E4; color: var(--danger); }
.tag-warn { background: #FBF3E2; color: var(--warning); }
.tag-info { background: #E7F0F7; color: var(--info); }
.tag-muted { background: #EEF1EE; color: var(--muted); }
.tag-id { font-family: var(--font-num); font-size: 11px; cursor: copy; }

/* ---------- 状态面板 ---------- */
.empty-state { text-align: center; padding: 36px 16px; color: var(--muted); }
.empty-state b { color: var(--text); display: block; margin-bottom: 4px; }
.error-panel { background: #FBEFED; border: 1px solid #EAC9C4; border-radius: var(--radius-card); padding: 16px 18px; display: grid; gap: 8px; margin: 12px 0; }
.error-panel b { color: var(--danger); }
.error-meta { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.blocked-panel { background: #FBF3E2; border: 1px solid #E8D9B8; border-radius: var(--radius-card); padding: 18px 20px; display: grid; gap: 8px; justify-items: start; }
.blocked-panel b { color: var(--warning); }
.skeleton-box { display: grid; gap: 10px; padding: 10px 0; }
.skeleton-line { height: 18px; border-radius: 8px; background: linear-gradient(90deg, #E9EDE9 25%, #F4F6F3 50%, #E9EDE9 75%); background-size: 200% 100%; animation: shimmer 1.4s infinite; }
@keyframes shimmer { to { background-position: -200% 0; } }

/* ---------- Toast ---------- */
.toast-stack { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); z-index: 200; display: grid; gap: 8px; width: min(480px, 92vw); }
.toast {
  background: #22322C; color: #fff; border-radius: var(--radius-control); padding: 10px 16px;
  opacity: 0; transform: translateY(8px); transition: opacity 0.2s ease, transform 0.2s ease; box-shadow: var(--shadow);
}
.toast.show { opacity: 1; transform: none; }
.toast-error { background: var(--danger); }
.toast-success { background: var(--success); }

/* ---------- Modal / Drawer ---------- */
.modal-overlay, .drawer-overlay {
  position: fixed; inset: 0; background: rgba(20, 36, 30, 0.4); z-index: 100;
  display: grid; place-items: center; padding: 18px; animation: fade-in 0.18s ease;
}
.modal {
  background: #fff; border-radius: var(--radius-card); box-shadow: var(--shadow);
  width: min(520px, 100%); max-height: 86vh; display: flex; flex-direction: column; animation: rise 0.2s ease;
}
.modal-wide { width: min(1080px, 100%); }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px 0; }
.modal-close { font-size: 15px; color: var(--muted); padding: 6px 10px; border-radius: 8px; }
.modal-close:hover { background: var(--primary-soft); color: var(--primary); }
.modal-body { padding: 12px 20px; overflow-y: auto; }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; padding: 0 20px 18px; }
.danger-lines { background: #FBEFED; border-radius: var(--radius-control); padding: 10px 14px; margin-bottom: 12px; }
.danger-lines p { color: var(--danger); margin: 2px 0; }
.drawer-overlay { place-items: stretch end; padding: 0; }
.drawer {
  background: #fff; width: min(480px, 100%); height: 100vh; box-shadow: var(--shadow);
  display: flex; flex-direction: column; animation: slide-in 0.2s ease;
}
.drawer-wide { width: min(720px, 100%); }
.drawer-body { padding: 12px 22px 22px; overflow-y: auto; }
@keyframes fade-in { from { opacity: 0; } }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } }
@keyframes slide-in { from { transform: translateX(30px); opacity: 0; } }

/* ---------- 页签 ---------- */
.tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--border); margin-bottom: 16px; overflow-x: auto; }
.tabs button { padding: 9px 16px; font-weight: 600; color: var(--muted); border-radius: 10px 10px 0 0; white-space: nowrap; }
.tabs button:hover { color: var(--primary); }
.tabs button.active { color: var(--primary); box-shadow: inset 0 -2px 0 var(--primary); background: var(--primary-soft); }

/* ---------- 座位编辑器 ---------- */
.seatmap { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-card); padding: 18px; margin-bottom: 16px; }
.blackboard {
  background: #2E4B40; color: #DCE8E1; text-align: center; letter-spacing: 1em; padding: 8px;
  border-radius: 10px; font-weight: 700; margin-bottom: 8px; text-indent: 1em;
}
.podium {
  width: 180px; margin: 0 auto 18px; background: #C9B48A; color: #5A4A28; text-align: center;
  letter-spacing: 0.5em; text-indent: 0.5em; padding: 10px; border-radius: 10px 10px 4px 4px; font-weight: 700;
}
.seat-scroll { overflow-x: auto; padding-bottom: 6px; }
.seat-grid { display: grid; gap: 8px; min-width: min-content; }
.row-label { display: grid; place-items: center; color: var(--muted); font-size: 12px; font-weight: 600; min-width: 48px; }
.seat {
  border: 1px solid var(--border); border-radius: 12px; background: #FDFEFD; padding: 8px 6px;
  display: flex; flex-direction: column; align-items: center; gap: 1px; min-height: 62px; text-align: center;
}
.seat:hover { border-color: var(--primary); }
.seat-empty { border-style: dashed; background: #FAFBF8; }
.seat-selected { border: 2px solid var(--primary); background: var(--primary-soft); }
.seat.dragging { opacity: 0.5; }
.seat.drag-over { border: 2px dashed var(--primary); }
.seat-no { font-size: 11px; color: var(--muted); font-family: var(--font-num); }
.seat-name { font-weight: 700; }
.seat-sno { font-size: 11px; }
.seat-toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 14px; }
.seat-toolbar input { width: 70px; }
.toolbar-sep { width: 1px; height: 22px; background: var(--border); }
.seat-pool { margin-top: 14px; border-top: 1px dashed var(--border); padding-top: 12px; }
.pool-head { display: flex; gap: 10px; align-items: baseline; margin-bottom: 8px; }
.pool-list { display: flex; gap: 8px; flex-wrap: wrap; }
.pool-chip { border: 1px solid var(--border); background: #fff; border-radius: 999px; padding: 5px 12px; font-weight: 600; }
.pool-chip:hover { border-color: var(--primary); }
.chip-selected { background: var(--primary); color: #fff; border-color: var(--primary); }
.chip-selected .muted { color: #D5E8DF; }

/* ---------- 课表编辑器 ---------- */
.tt-editor { margin-bottom: 16px; }
.tt-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-card); background: #fff; }
.tt-grid { border-collapse: collapse; width: 100%; min-width: 640px; }
.tt-grid th, .tt-grid td { border: 1px solid var(--border); padding: 6px; }
.tt-grid thead th { background: var(--primary-soft); color: var(--primary-dark); padding: 9px; }
.tt-period-col { background: #F4F7F4; min-width: 86px; text-align: left; padding: 8px 10px !important; }
.tt-period-col b { display: block; }
.tt-period-col .muted { font-size: 11px; }
.tt-cell { min-width: 110px; height: 58px; vertical-align: middle; cursor: default; position: relative; }
.tt-cell[role="button"] { cursor: pointer; }
.tt-cell[role="button"]:hover { background: var(--primary-soft); }
.cell-lesson { display: flex; flex-direction: column; border-left: 3px solid var(--primary); padding-left: 7px; gap: 0; }
.cell-teacher { font-size: 12px; color: var(--text); }
.cell-room { font-size: 11px; }
.cell-empty { font-size: 12px; }
.cell-popover {
  position: absolute; top: 100%; left: 0; z-index: 60; background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius-control); box-shadow: var(--shadow); padding: 12px; display: grid; gap: 8px; width: 210px;
}
.weekend-box { margin-top: 12px; }
.weekend-box summary { cursor: pointer; font-weight: 600; color: var(--muted); padding: 8px 4px; }
.daily-changed { background: #FBF3E2; }

/* ---------- 课表与调课工作区 ---------- */
.timetable-section { padding: 22px; }
.timetable-section-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; margin-bottom: 16px; }
.timetable-section-header h3 { margin: 2px 0 3px; font-size: 20px; }
.timetable-section-header p { margin: 0; }
.section-kicker { color: var(--primary); font-size: 11px; font-weight: 800; letter-spacing: 0.12em; }
.schedule-meta { display: grid; justify-items: end; gap: 7px; }
.week-range { padding: 7px 11px; border: 1px solid #DDE5E0; border-radius: 9px; background: #F7F9F7; color: var(--primary-dark); font-size: 13px; white-space: nowrap; }
.week-navigation { display: flex; gap: 7px; }
.week-nav-button { min-height: 32px; padding: 5px 10px; font-size: 12px; }
.schedule-legend { display: flex; gap: 14px; color: var(--muted); font-size: 12px; white-space: nowrap; }
.schedule-legend span::before { content: ""; display: inline-block; width: 9px; height: 9px; margin-right: 6px; border-radius: 3px; background: #E8ECE9; }
.schedule-legend span.changed::before { background: #E9D69A; }
.weekly-timetable-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: 14px; background: #fff; }
.weekly-timetable { width: 100%; min-width: 980px; border-collapse: separate; border-spacing: 0; table-layout: fixed; }
.weekly-timetable th, .weekly-timetable td { border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.weekly-timetable tr:last-child > * { border-bottom: 0; }
.weekly-timetable tr > *:last-child { border-right: 0; }
.weekly-timetable thead th { padding: 10px 8px; background: #F5F7F5; color: var(--primary-dark); }
.weekly-timetable thead th b, .weekly-timetable thead th span { display: block; }
.weekly-timetable thead th span { margin-top: 2px; color: var(--muted); font-size: 11px; font-weight: 500; }
.weekly-timetable .weekly-period { position: sticky; left: 0; z-index: 2; width: 92px; padding: 10px; background: #F8F9F7; text-align: left; }
.weekly-timetable thead .weekly-period { z-index: 3; }
.weekly-timetable .today { box-shadow: inset 0 0 0 1px rgba(23, 106, 82, 0.22); background: var(--primary-soft); }
.weekly-lesson { position: relative; height: 72px; padding: 8px 9px; vertical-align: top; background: #fff; }
.weekly-lesson b, .weekly-lesson span, .weekly-lesson small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.weekly-lesson b { font-size: 13px; }
.weekly-lesson span { margin-top: 3px; font-size: 11px; color: var(--text); }
.weekly-lesson small { margin-top: 1px; color: var(--muted); }
.weekly-lesson.empty { color: #B5BDB8; text-align: center; vertical-align: middle; }
.weekly-lesson.changed { background: #FFF9E9; box-shadow: inset 3px 0 0 #C79C32; }
.weekly-lesson.cancelled b { text-decoration: line-through; opacity: 0.65; }
.weekly-lesson em { position: absolute; top: 5px; right: 5px; padding: 1px 5px; border-radius: 999px; color: #805E0F; background: #F5E7B9; font-size: 9px; font-style: normal; font-weight: 700; }

.course-adjustments { background: linear-gradient(180deg, #FFFFFF 0%, #FAFBF8 100%); }
.adjustment-list { display: grid; gap: 16px; }
.adjustment-panel { padding: 18px; border: 1px solid var(--border); border-radius: 16px; background: #fff; }
.adjustment-heading { display: flex; align-items: flex-start; gap: 11px; margin-bottom: 14px; }
.adjustment-heading h4 { margin: 1px 0 2px; font-size: 16px; }
.adjustment-heading p { margin: 0; font-size: 13px; }
.adjustment-number { display: grid; flex: 0 0 28px; width: 28px; height: 28px; place-items: center; border-radius: 9px; color: #fff; background: var(--primary); font: 700 13px/1 var(--font-num); }
.adjustment-flow { display: grid; grid-template-columns: minmax(0, 1fr) 82px minmax(0, 1.15fr); gap: 14px; align-items: stretch; }
.adjustment-side { min-width: 0; padding: 14px; border: 1px solid #DDE5E0; border-radius: 13px; background: #FBFCFA; }
.adjustment-side.target { border-color: #C5DBD1; background: #F4FAF7; }
.adjustment-side > b { display: block; margin-bottom: 10px; color: var(--primary-dark); }
.adjustment-fields { display: grid; gap: 10px; }
.adjustment-fields.one { grid-template-columns: minmax(0, 1fr); }
.adjustment-fields.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.adjustment-fields.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.adjustment-fields .field { min-width: 0; margin-bottom: 8px; }
.adjustment-fields input, .adjustment-fields select { min-width: 0; width: 100%; }
.read-only-course input[readonly] { color: var(--text); background: #EEF3F0; }
.adjustment-arrow { display: grid; align-content: center; justify-items: center; color: var(--primary); }
.adjustment-arrow span { font: 800 30px/1 var(--font-num); }
.adjustment-arrow small { margin-top: 6px; color: var(--muted); font-size: 10px; }
.lesson-preview { display: grid; gap: 7px; min-height: 82px; padding: 12px; border: 1px solid #DCE4DF; border-radius: 11px; background: #fff; }
.lesson-preview.changed { border-color: #E2CB82; background: #FFF9E9; }
.lesson-preview.empty { place-items: center; }
.lesson-preview-title { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.lesson-preview-meta { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 12px; }
.compact-loading { min-height: 82px; display: grid; place-items: center; margin: 0; }
.adjustment-footer { display: grid; grid-template-columns: minmax(240px, 1fr) auto; gap: 14px; align-items: end; margin-top: 13px; }
.adjustment-footer .field { margin: 0; }
.base-preview-list { display: grid; gap: 6px; }
.base-preview-row { display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: 10px; padding: 7px 9px; border-radius: 9px; background: #fff; font-size: 12px; }
.base-preview-row span, .base-preview-row small { display: block; }
.period-settings { margin: 0 0 14px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 11px; background: #FAFBF9; }
.period-settings summary { cursor: pointer; color: var(--muted); font-weight: 600; }
.period-settings .row-gap { margin-top: 10px; }
.period-settings input { max-width: 260px; }
.base-save-row { display: flex; align-items: center; gap: 12px; margin-top: 14px; }

/* ---------- 上传 ---------- */
.dropzone {
  border: 2px dashed var(--border); border-radius: var(--radius-card); padding: 26px; text-align: center;
  display: grid; gap: 4px; cursor: pointer; margin-bottom: 14px; background: #fff;
}
.dropzone:hover, .dropzone.dragging { border-color: var(--primary); background: var(--primary-soft); }
.dropzone.busy { cursor: default; }
.dropzone.disabled { cursor: not-allowed; opacity: .68; }
.dropzone.disabled:hover { border-color: var(--border); background: transparent; }
.drop-progress { color: var(--primary); font-weight: 600; }
.drop-file-list { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; text-align: left; }
.drop-file-item {
  display: inline-flex; align-items: center; gap: 6px; max-width: 100%;
  padding: 4px 6px 4px 10px; border: 1px solid var(--border); border-radius: 8px; background: #fff; font-size: 12px;
}
.drop-file-name { max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.drop-file-remove { width: 20px; height: 20px; border-radius: 6px; color: var(--muted); font-size: 15px; line-height: 1; }
.drop-file-remove:hover { background: #F7E6E4; color: var(--danger); }
.ai-button-wrap {
  position: relative; display: inline-grid; justify-self: center; padding: 2px;
  overflow: hidden; border-radius: calc(var(--radius-control) + 2px);
}
.ai-button-wrap::before {
  content: ""; position: absolute; inset: -80%; opacity: 0;
  background: conic-gradient(transparent 0 22%, var(--primary) 30% 44%, transparent 52% 72%, var(--primary) 80% 94%, transparent 100%);
}
.ai-button-wrap.running::before { opacity: 1; animation: ai-button-spin 1.1s linear infinite; }
.ai-button { position: relative; z-index: 1; min-width: 108px; display: inline-flex; align-items: center; justify-content: center; gap: 7px; }
.ai-button-wrap.running .ai-button { color: var(--danger); }
.ai-button-timer { min-width: 3.5em; font-variant-numeric: tabular-nums; text-align: right; }
@keyframes ai-button-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .ai-button-wrap.running::before { animation: none; } }
.dropzone > .ai-button-wrap { margin-top: 8px; }
.import-panel { margin: 12px 0 16px; padding: 14px; border: 1px solid var(--border); border-radius: var(--radius-control); background: var(--bg); }
.import-panel .dropzone { margin-bottom: 10px; }

/* ---------- 二维码 ---------- */
.qr-panel { display: grid; gap: 10px; justify-items: start; }
.qr-img { width: 220px; height: 220px; border: 1px solid var(--border); border-radius: 12px; background: #fff; }

/* ---------- 班级 Agent 对话 ---------- */
.agent-chat-layout {
  display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 16px; align-items: start;
}
.agent-chat-sidebar { display: grid; gap: 14px; min-width: 0; }
.agent-chat-main { min-width: 0; }
.agent-conversation-list { padding: 14px; border: 1px solid var(--border); border-radius: 16px; background: #fff; }
.agent-conversation-list h3 { margin: 0 0 12px; font-size: 14px; }
.agent-conversation-items { display: grid; gap: 7px; max-height: min(50vh, 480px); overflow-y: auto; }
.agent-conversation-row { display: grid; grid-template-columns: minmax(0, 1fr) 42px; align-items: center; gap: 3px; }
.agent-conversation-delete { padding: 10px 4px; min-height: 44px; border: 0; border-radius: 8px; background: transparent; color: var(--danger); font-size: 12px; }
.agent-conversation-delete:hover { background: var(--danger-soft, #FFF0EE); }
.agent-conversation-delete:focus-visible { outline: 2px solid var(--danger); outline-offset: -2px; }
.agent-conversation-item { display: grid; gap: 5px; width: 100%; text-align: left; padding: 11px; border: 1px solid transparent; border-radius: 10px; background: #F6F8F6; }
.agent-conversation-item:hover { background: var(--primary-soft); }
.agent-conversation-item.active { border-color: var(--primary); background: var(--primary-soft); }
.agent-conversation-item:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.agent-conversation-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.agent-conversation-status { color: var(--muted); font-size: 12px; }
.agent-conversation-status.running { color: var(--primary); font-weight: 700; }
.agent-conversation-status.failed { color: var(--danger); }
.agent-conversation-hint { margin: 12px 0 0; font-size: 11px; line-height: 1.6; }
.agent-chat-panel {
  display: grid; grid-template-rows: auto minmax(320px, 1fr) auto; overflow: hidden;
  min-height: 620px; height: calc(100vh - 158px); max-height: 880px;
  border: 1px solid var(--border); border-radius: 22px; background: rgba(255, 255, 255, 0.96); box-shadow: var(--shadow);
}
.agent-chat-bar {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 13px 18px; border-bottom: 1px solid var(--border); background: rgba(249, 252, 250, 0.96);
}
.agent-chat-bar > div { display: flex; align-items: center; gap: 9px; }
.agent-thinking-control { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; font-size: 12px; }
.agent-thinking-select { width: auto; max-width: 190px; min-height: 32px; font-size: 12px; }
.agent-chat-bar > .agent-thinking-settings { flex-direction: column; align-items: flex-end; gap: 4px; min-width: 0; }
.agent-thinking-note { max-width: 32rem; font-size: 12px; line-height: 1.5; }
.agent-online {
  display: inline-flex; align-items: center; gap: 5px; color: var(--success); font-size: 12px; font-weight: 600;
}
.agent-online::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--success); }
.agent-chat-messages {
  min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: 28px clamp(16px, 4vw, 46px);
  scroll-behavior: smooth;
}
.agent-chat-welcome {
  width: min(660px, 100%); min-height: 100%; margin: 0 auto; display: grid; align-content: center; justify-items: center;
  gap: 10px; padding: 24px 0 42px; text-align: center;
}
.agent-chat-welcome-mark {
  width: 54px; height: 54px; display: grid; place-items: center; border-radius: 18px;
  background: linear-gradient(145deg, var(--primary), #2B8C70); color: #fff; box-shadow: 0 10px 24px rgba(23, 106, 82, 0.2);
  font-size: 23px; font-weight: 800;
}
.agent-chat-welcome h2 { margin-top: 4px; font-size: 23px; }
.agent-chat-welcome > p { max-width: 590px; }
.agent-chat-suggestions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; width: 100%; margin-top: 14px; }
.agent-chat-suggestion {
  min-height: 76px; padding: 12px 14px; text-align: left; border: 1px solid var(--border); border-radius: 14px;
  background: #fff; color: var(--text); line-height: 1.45; transition: border-color .18s ease, background .18s ease, transform .18s ease;
}
.agent-chat-suggestion:hover { border-color: #9FC4B4; background: var(--primary-soft); transform: translateY(-1px); }
.agent-chat-message { display: flex; align-items: flex-start; gap: 10px; width: 100%; margin-bottom: 22px; }
.agent-chat-message.from-user { flex-direction: row-reverse; }
.agent-chat-avatar {
  flex: 0 0 30px; width: 30px; height: 30px; display: grid; place-items: center; border-radius: 10px;
  background: var(--primary); color: #fff; font-size: 11px; font-weight: 800;
}
.from-user .agent-chat-avatar { background: #E1E9E5; color: #345348; }
.agent-chat-bubble { min-width: 0; max-width: min(78%, 720px); }
.agent-chat-meta { display: flex; align-items: center; gap: 8px; margin: 0 3px 5px; color: var(--muted); font-size: 11px; }
.from-user .agent-chat-meta { justify-content: flex-end; }
.agent-chat-meta > span { color: #98A7A1; }
.agent-chat-text {
  padding: 11px 14px; border: 1px solid var(--border); border-radius: 6px 16px 16px 16px;
  background: #fff; line-height: 1.7; overflow-wrap: anywhere; white-space: pre-wrap;
}
.from-user .agent-chat-text { border-color: #C6DED3; border-radius: 16px 6px 16px 16px; background: var(--primary-soft); }
.agent-chat-text.is-error { border-color: #EAC9C4; background: #FBEFED; color: var(--danger); }
.agent-chat-files { display: flex; flex-wrap: wrap; justify-content: flex-start; gap: 6px; margin-bottom: 6px; }
.from-user .agent-chat-files { justify-content: flex-end; }
.agent-chat-file {
  display: inline-flex; align-items: center; gap: 6px; max-width: 280px; padding: 6px 9px; overflow: hidden;
  border: 1px solid #CFE0D8; border-radius: 10px; background: #fff; color: var(--primary-dark); text-overflow: ellipsis; white-space: nowrap;
}
.agent-chat-file small { color: var(--muted); }
.agent-chat-thinking .agent-chat-bubble { display: flex; align-items: center; gap: 5px; padding: 9px 13px; border: 1px solid var(--border); border-radius: 6px 16px 16px 16px; background: #fff; color: var(--muted); }
.agent-chat-thinking i { width: 5px; height: 5px; border-radius: 50%; background: #8EA49B; animation: agent-dot 1.2s infinite ease-in-out; }
.agent-chat-thinking i:nth-of-type(2) { animation-delay: .15s; }
.agent-chat-thinking i:nth-of-type(3) { animation-delay: .3s; }
.agent-reasoning { margin: 0 0 10px; color: var(--muted); font-size: 13px; }
.agent-reasoning-toggle { display: flex; align-items: center; gap: 8px; width: fit-content; padding: 8px 11px; border-radius: 9px; background: #EDF2EF; cursor: pointer; list-style: none; user-select: none; }
.agent-reasoning-toggle::-webkit-details-marker { display: none; }
.agent-reasoning-toggle:hover { background: #E3ECE7; }
.agent-reasoning-toggle:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
.agent-reasoning-mark { color: var(--primary); font-size: 16px; }
.agent-reasoning.is-thinking .agent-reasoning-mark { animation: agent-dot 1.4s infinite ease-in-out; }
.agent-reasoning-time { font-variant-numeric: tabular-nums; }
.agent-reasoning-chevron { margin-left: 4px; transition: transform .15s; }
.agent-reasoning[open] .agent-reasoning-chevron { transform: rotate(180deg); }
.agent-reasoning-content { margin: 12px 0 4px 10px; padding: 0 0 0 16px; border-left: 2px solid #D7E2DC; line-height: 1.8; white-space: pre-wrap; overflow-wrap: anywhere; }
.agent-reasoning-content.is-placeholder { font-size: 12px; }
@media (prefers-reduced-motion: reduce) {
  .agent-reasoning.is-thinking .agent-reasoning-mark { animation: none; }
  .agent-reasoning-chevron { transition: none; }
}
@keyframes agent-dot { 0%, 60%, 100% { transform: translateY(0); opacity: .4; } 30% { transform: translateY(-3px); opacity: 1; } }
.agent-chat-composer { padding: 10px 14px 12px; border-top: 1px solid var(--border); background: #FBFCFA; }
.agent-chat-selected { display: flex; gap: 7px; overflow-x: auto; padding: 0 2px 9px; }
.agent-selected-file {
  display: inline-grid; grid-template-columns: minmax(70px, 160px) auto auto; align-items: center; gap: 6px; flex: 0 0 auto;
  padding: 5px 6px 5px 10px; border: 1px solid #CFE0D8; border-radius: 10px; background: #fff;
}
.agent-selected-file > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.agent-selected-file small { color: var(--muted); }
.agent-selected-file button { width: 24px; height: 24px; border-radius: 7px; color: var(--muted); font-size: 17px; }
.agent-selected-file button:hover { background: #F7E6E4; color: var(--danger); }
.agent-chat-compose-row {
  display: grid; grid-template-columns: auto auto minmax(120px, 1fr) auto; align-items: end; gap: 7px;
  padding: 7px; border: 1px solid #C9D8D1; border-radius: 16px; background: #fff; box-shadow: 0 4px 15px rgba(24, 51, 44, .06);
}
.agent-chat-input {
  min-height: 40px; max-height: 180px; padding: 9px 5px; resize: none; border: 0; border-radius: 0; box-shadow: none !important;
  line-height: 1.55;
}
.agent-composer-tool { min-width: 46px; height: 40px; padding: 0 9px; border-radius: 10px; color: var(--muted); font-size: 12px; }
.agent-composer-tool:hover:not(:disabled), .agent-composer-tool.active { background: var(--primary-soft); color: var(--primary-dark); }
.agent-composer-tool.active { animation: agent-recording 1.4s infinite; }
@keyframes agent-recording { 50% { background: #F7E6E4; color: var(--danger); } }
.agent-chat-send, .agent-chat-stop { min-width: 62px; height: 40px; padding: 0 13px; border-radius: 11px; font-weight: 700; }
.agent-chat-send { background: var(--primary); color: #fff; }
.agent-chat-send:hover { background: var(--primary-dark); }
.agent-chat-stop { border: 1px solid #E3B6B1; background: #FFF7F6; color: var(--danger); }
.agent-chat-compose-foot { display: flex; justify-content: space-between; gap: 10px; padding: 6px 5px 0; font-size: 11px; }
.agent-model-button { width: 100%; }
.agent-model-settings { display: grid; gap: 18px; }
.agent-model-summary { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 9px; }
.agent-model-summary > div { display: grid; gap: 5px; min-width: 0; padding: 11px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg); }
.agent-model-summary code { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.agent-model-form { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; }
.agent-model-form .field { margin: 0; }
.agent-model-warning { display: flex; align-items: center; gap: 9px; padding: 11px 12px; border: 1px solid #E8D9B8; border-radius: 10px; background: #FFFAEE; }

/* ---------- Onboarding 向导 ---------- */
.wizard-steps { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 18px; }
.wizard-step {
  display: flex; align-items: center; gap: 8px; border: 1px solid var(--border); background: #fff;
  border-radius: 999px; padding: 7px 14px; font-weight: 600; color: var(--muted);
}
.wizard-step b { width: 22px; height: 22px; border-radius: 50%; background: #EEF1EE; display: grid; place-items: center; font-size: 12px; }
.wizard-step.active { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
.wizard-step.active b { background: var(--primary); color: #fff; }
.wizard-step.done { color: var(--success); }
.wizard-step.done b { background: var(--success); color: #fff; }
.proposal-review .issue-list { display: grid; gap: 6px; margin: 10px 0; }
.issue { border-radius: var(--radius-control); padding: 8px 12px; font-size: 13px; }
.issue-error { background: #F7E6E4; color: var(--danger); }
.issue-warn { background: #FBF3E2; color: var(--warning); }
.issue-ok { background: var(--primary-soft); color: var(--success); }
.json-details summary { cursor: pointer; color: var(--muted); font-size: 13px; }
.json-pre { background: #22322C; color: #D7E4DC; border-radius: var(--radius-control); padding: 12px; overflow: auto; font-size: 12px; max-height: 320px; }

/* ---------- 查询中心 ---------- */
.query-scope { background: var(--primary-soft); border-radius: var(--radius-control); padding: 8px 14px; color: var(--primary-dark); margin-bottom: 12px; font-size: 13px; }
.result-group { margin-bottom: 16px; }
.result-group > h4 { margin: 0 0 6px; }

/* ---------- 欢迎页 ---------- */
.welcome-hero { text-align: center; padding: 60px 20px; }
.welcome-hero h2 { font-size: 26px; }

/* ---------- 杂项 ---------- */
.page-mount { max-width: 1240px; }
.ob-panel { scroll-margin-top: 12px; }
.seat-grid-box { min-width: min-content; margin: 0 auto; }
.weekend-content { padding: 4px 0 10px; }

/* ---------- 管理员控制台 ---------- */
.admin-shell {
  --primary: #3B82F6; --primary-dark: #1D4ED8; --primary-soft: #EAF2FF;
  --bg: #F3F6FA; --text: #152033; --muted: #64748B; --border: #D6DFEA;
  --surface: rgba(255, 255, 255, 0.96); --shadow: 0 8px 26px rgba(30, 41, 59, 0.07);
}
.admin-shell .sidebar { background: #101827; border-right-color: #263349; color: #E5EDF8; }
.admin-shell .sidebar .muted, .admin-shell .nav-group-title { color: #8190A6; }
.admin-shell .brand-mark { background: #3B82F6; border-radius: 8px; }
.admin-shell .nav-item { color: #C9D4E5; border-radius: 7px; font-family: var(--font-num); font-size: 13px; }
.admin-shell .nav-item:hover { background: #18243A; color: #fff; }
.admin-shell .nav-item.active { background: #2563EB; color: #fff; }
.admin-shell .content { max-width: 1500px; }
.admin-shell .card { border-radius: 10px; box-shadow: var(--shadow); }
.admin-shell .metric-card { border-radius: 8px; }
.admin-shell .metric-value { color: #1D4ED8; }
.admin-shell .data-table thead th { background: #EDF3FB; color: #334155; font-family: var(--font-num); font-weight: 600; }
.admin-shell code { background: #E9EEF6; color: #334155; border-radius: 4px; }
.admin-quick-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 4px 0 18px; }
.admin-quick-card { display: grid; gap: 5px; padding: 16px; text-align: left; border: 1px solid var(--border); border-radius: 9px; background: #fff; }
.admin-quick-card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.admin-quick-card span { color: var(--muted); font-size: 13px; }
.admin-quick-card code { justify-self: start; }
.admin-two-col { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.admin-section-title { justify-content: space-between; margin-bottom: 12px; }
.admin-config-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; margin-bottom: 16px; }
.admin-config-grid.compact { grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 12px 0; }
.admin-kv { display: grid; gap: 3px; min-width: 0; padding: 9px 10px; border: 1px solid #DCE3ED; border-radius: 7px; background: #F8FAFC; }
.admin-kv > span { color: var(--muted); font-size: 11px; font-family: var(--font-num); text-transform: uppercase; }
.admin-kv code { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; background: transparent; padding: 0; }
.admin-agent-card { margin: 0; }
.admin-error-log { overflow: auto; max-height: 120px; padding: 10px; border-radius: 6px; background: #2A1517; color: #FCA5A5; font: 12px/1.5 var(--font-num); white-space: pre-wrap; }
.agent-config-summary { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-bottom: 14px; }
.agent-config-tabs { margin-top: 8px; }
.agent-config-pane { min-width: 0; }
.agent-runtime-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.agent-file-toolbar { display: grid; grid-template-columns: minmax(260px, 1fr) auto; gap: 14px; align-items: end; }
.agent-file-meta { display: flex; flex-wrap: wrap; justify-content: flex-end; align-items: center; gap: 8px; min-width: 0; }
.agent-file-meta code { max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mono { font-family: var(--font-num); }
.log-filters { display: grid; grid-template-columns: 190px 150px minmax(260px, 1fr) 120px auto auto; gap: 12px; align-items: end; }
.log-filters .field { margin: 0; }
.log-status { font-family: var(--font-num); font-size: 12px; }
.log-status code { max-width: 500px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.log-console { overflow: hidden; border: 1px solid #2A3A52; border-radius: 8px; background: #0B1220; color: #CBD5E1; }
.log-row { display: grid; grid-template-columns: 165px 76px 170px minmax(260px, 1fr) 52px; gap: 10px; align-items: start; padding: 8px 10px; border-bottom: 1px solid #1E293B; font: 12px/1.5 var(--font-num); }
.log-row:last-child { border-bottom: 0; }
.log-row:hover { background: #111C30; }
.log-time, .log-logger { overflow: hidden; color: #7F91AB; text-overflow: ellipsis; white-space: nowrap; }
.log-level { color: #93C5FD; font-weight: 700; }
.level-warning .log-level { color: #FBBF24; }
.level-error .log-level, .level-critical .log-level { color: #F87171; }
.level-debug .log-level { color: #A78BFA; }
.log-message { min-width: 0; overflow-wrap: anywhere; white-space: pre-wrap; }
.log-detail { grid-column: 1 / -1; overflow: auto; max-height: 340px; margin: 2px 0 4px; padding: 10px; border: 1px solid #26364F; border-radius: 5px; color: #AFC3DE; background: #080D17; font: inherit; white-space: pre-wrap; }
.config-file-guide code, .config-setting-row code { white-space: normal; overflow-wrap: anywhere; }
.config-file-guide details { margin: 12px 0; }
.config-file-guide summary, .agent-runtime-advanced summary { cursor: pointer; font-weight: 600; }
.config-file-guide li { margin: 8px 0; }
.config-field-meta { display: grid; gap: 6px; color: var(--muted); }
.config-field-meta code { justify-self: start; font-size: 11px; }
.setting-row.config-setting-row { grid-template-columns: minmax(0, 3fr) minmax(150px, 2fr); }
.agent-runtime-section { min-width: 0; border: 1px solid var(--border); border-radius: 8px; padding: 14px; margin: 16px 0; }
.agent-runtime-section legend { padding: 0 6px; font-weight: 600; }
.agent-runtime-advanced { margin: 16px 0; }
.setting-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px; align-items: center; padding: 13px 2px; border-bottom: 1px solid var(--border); }
.setting-row:last-child { border-bottom: 0; }
.setting-control { display: flex; align-items: center; gap: 8px; min-width: 220px; }
.setting-control.boolean { min-width: auto; }
.setting-control input[type="checkbox"], .check-field input[type="checkbox"] { width: 19px; height: 19px; accent-color: var(--primary); }
.setting-control input[type="number"] { width: 110px; }
.check-field { display: flex; grid-column: 1 / -1; flex-direction: row; align-items: center; gap: 9px; }
.danger-text { color: var(--danger); }
.danger-zone { border-color: #E8B7B2 !important; }
.init-result { margin-top: 14px; padding: 14px; border: 1px solid #BFD8CC; border-radius: 8px; background: #F2FAF6; }
.init-result.partial { border-color: #E8D9B8; background: #FFFAEE; }
.init-result.failed { border-color: #EAC9C4; background: #FBEFED; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; left: 0; top: 0; bottom: 0; width: 260px; z-index: 90; height: 100vh;
    transform: translateX(-100%); transition: transform 0.2s ease; box-shadow: var(--shadow);
  }
  .sidebar.open { transform: none; }
  .hamburger { display: block; font-size: 18px; padding: 6px 10px; border-radius: 8px; border: 1px solid var(--border); background: #fff; }
  .sidebar-backdrop { position: fixed; inset: 0; background: rgba(20, 36, 30, 0.35); z-index: 80; }
  .content { padding: 14px; }
  .topbar { padding: 10px 14px; gap: 8px; flex-wrap: wrap; }
  .topbar .page-sub { display: none; }
  .admin-quick-grid, .admin-config-grid, .agent-runtime-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .log-filters { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .log-row { grid-template-columns: 140px 68px minmax(100px, 150px) minmax(220px, 1fr) 48px; overflow-x: auto; }
  .adjustment-flow { grid-template-columns: 1fr; }
  .adjustment-arrow { min-height: 44px; }
  .adjustment-arrow span { transform: rotate(90deg); }
  .agent-chat-layout { grid-template-columns: 1fr; }
  .agent-conversation-items { grid-auto-flow: column; grid-auto-columns: 190px; grid-template-columns: none; overflow-x: auto; }
  .agent-model-summary, .agent-model-form { grid-template-columns: 1fr; }
  .agent-chat-panel { height: calc(100vh - 175px); }
}
@media (max-width: 480px) {
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .modal-foot { flex-direction: column-reverse; }
  .modal-foot button { width: 100%; }
  .login-card { padding: 24px; }
  .seating-version-bar { grid-template-columns: 1fr; }
  .seating-version-row, .duty-rule-row { align-items: flex-start; flex-direction: column; }
  .attendance-options { min-width: 260px; }
  .admin-quick-grid, .admin-config-grid, .admin-two-col, .agent-config-summary, .agent-runtime-grid, .agent-file-toolbar, .log-filters { grid-template-columns: 1fr; }
  .agent-file-meta { justify-content: flex-start; }
  .setting-row, .setting-row.config-setting-row { grid-template-columns: 1fr; }
  .setting-control { min-width: 0; }
  .timetable-section { padding: 15px; }
  .timetable-section-header, .adjustment-footer { grid-template-columns: 1fr; flex-direction: column; align-items: stretch; }
  .schedule-meta { justify-items: start; }
  .week-navigation { flex-wrap: wrap; }
  .adjustment-panel { padding: 13px; }
  .adjustment-fields.two, .adjustment-fields.three { grid-template-columns: 1fr; }
  .adjustment-footer { display: grid; }
  .adjustment-footer button { width: 100%; }
  .agent-chat-panel { min-height: 540px; height: calc(100vh - 150px); border-radius: 15px; }
  .agent-chat-messages { padding: 20px 10px; }
  .agent-chat-suggestions { grid-template-columns: 1fr; }
  .agent-chat-suggestion { min-height: auto; }
  .agent-chat-avatar { display: none; }
  .agent-chat-bubble { max-width: 92%; }
  .agent-chat-compose-row { grid-template-columns: auto auto minmax(80px, 1fr) auto; }
  .agent-composer-tool { min-width: 38px; padding: 0 5px; }
  .agent-chat-send, .agent-chat-stop { min-width: 50px; padding: 0 9px; }
  .agent-chat-compose-foot > span:last-child { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ---------- 设置中心 ---------- */
.settings-domains { margin-bottom: 18px; }
.settings-editor { min-width: 0; }
.settings-document-meta { margin: 0 0 14px; color: var(--muted); font-size: 12px; }
.settings-document-meta summary { cursor: pointer; }
.settings-toolbar { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; flex-wrap: wrap; }
.settings-toolbar > input { flex: 1; min-width: 220px; }
.settings-toolbar .tabs { margin: 0; flex-shrink: 0; }
.settings-layout { display: grid; grid-template-columns: 190px minmax(0, 1fr); align-items: start; gap: 22px; }
.settings-layout.single { grid-template-columns: minmax(0, 1fr); }
.settings-tree { display: grid; gap: 4px; position: sticky; top: 90px; padding: 8px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); }
.settings-tree button { display: flex; align-items: center; justify-content: space-between; gap: 6px; padding: 10px; text-align: left; border-radius: 6px; }
.settings-tree button:hover, .settings-tree button.active { background: var(--primary-soft); color: var(--primary); }
.settings-tree button.active { font-weight: 700; }
.settings-content { min-width: 0; }
.settings-group > .muted { margin-bottom: 12px; }
.settings-editor .config-setting-row { border-left: 3px solid transparent; padding: 18px 10px; gap: 20px; }
.settings-editor .config-setting-row.is-dirty { border-left-color: var(--primary); background: var(--primary-soft); }
.config-setting-control { display: grid; gap: 7px; min-width: 0; }
.config-setting-control input, .config-setting-control select { max-width: 100%; }
.config-setting-control [aria-invalid="true"] { border-color: var(--danger); box-shadow: 0 0 0 1px var(--danger); }
.config-setting-control .field-error:empty { display: none; }
.config-setting-control small { font-size: 11px; }
.setting-switch[type="checkbox"] { appearance: none; width: 40px; height: 24px; padding: 0; border: 1px solid var(--border); border-radius: 20px; background: var(--border); position: relative; cursor: pointer; flex-shrink: 0; }
.setting-switch[type="checkbox"]::before { content: ""; position: absolute; left: 3px; top: 3px; width: 16px; height: 16px; border-radius: 50%; background: var(--surface); transition: transform .15s; }
.setting-switch[type="checkbox"]:checked { background: var(--primary); border-color: var(--primary); }
.setting-switch[type="checkbox"]:checked::before { transform: translateX(16px); }
.setting-switch[type="checkbox"]:disabled { opacity: .5; cursor: not-allowed; }
.settings-savebar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; position: sticky; bottom: 12px; z-index: 5; margin: 18px 0; padding: 14px 18px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); box-shadow: var(--shadow); }
.settings-savebar .tag { font-size: 11px; }
.settings-restart-banner { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 14px 16px; margin-bottom: 16px; background: var(--primary-soft); border: 1px solid var(--border); border-left: 4px solid var(--primary); border-radius: 8px; }
.diff-old, .diff-new { display: block; max-width: 320px; white-space: pre-wrap; overflow-wrap: anywhere; font-family: var(--font-num); font-size: 12px; }
.diff-old { color: var(--muted); }
.diff-new { color: var(--primary); font-weight: 600; }
.source-editor { display: grid; grid-template-columns: 48px minmax(0, 1fr); height: clamp(360px, 60vh, 760px); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--surface); }
.source-lines, .source-input { font: 13px/22px var(--font-num); tab-size: 2; margin: 0; border: 0; border-radius: 0; padding: 16px 12px; }
.source-lines { color: var(--muted); background: var(--bg); text-align: right; overflow: hidden; user-select: none; }
.source-lines span { display: block; height: 22px; }
.source-lines .source-line-error { background: var(--danger); color: var(--surface); font-weight: 700; }
.source-input { resize: none; width: 100%; height: 100%; min-width: 0; min-height: 0; background: var(--surface); color: var(--text); white-space: pre; overflow: auto; }
.source-input:focus { outline: 2px solid var(--primary); outline-offset: -2px; box-shadow: none; }
.admin-agent-list { display: grid; gap: 16px; margin-top: 16px; }
.agent-inline-models { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)) auto; align-items: end; gap: 12px; margin: 16px 0; }
.agent-inline-models .field { margin: 0; min-width: 0; }
.agent-inline-models > .error-panel { grid-column: 1 / -1; }
.access-class-detail { width: min(860px, 75vw); min-width: 320px; padding: 16px 0; white-space: normal; }
.access-class-detail .admin-agent-card { margin-top: 18px; }
.access-class-detail > a { display: inline-block; margin-top: 12px; }
.access-users > .page-header, .access-classes > .page-header { margin-bottom: 12px; }

/* ---------- 运维中心：用量与日志 ---------- */
.ops-tabs { margin-bottom: 22px; }
.ops-tab-content > .page-header h2 { font-size: 18px; }
.usage-summary { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-bottom: 18px; }
.usage-trend { margin: 0; min-width: 0; }
.usage-trend > svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart-gridline { stroke: var(--border); stroke-width: 1; }
.chart-axis { font: 11px var(--font-num); fill: var(--muted); }
.chart-series-label { font: 12px var(--font-num); fill: var(--primary); }
.chart-series { stroke: var(--primary); stroke-width: 2.5; stroke-linejoin: round; }
.chart-point { fill: var(--primary); stroke: var(--surface); stroke-width: 1.5; }
.chart-series.series-1 { stroke: var(--info); stroke-dasharray: 6 3; }
.chart-point.series-1, .chart-series-label.series-1 { fill: var(--info); }
.chart-point:focus, .chart-point:hover { stroke: var(--text); stroke-width: 3; outline: none; }
.chart-tooltip { min-height: 28px; margin-top: 4px; color: var(--muted); font: 12px var(--font-num); }
.usage-bars { display: grid; gap: 16px; }
.usage-bar b { overflow-wrap: anywhere; }
.usage-bar svg { display: block; width: 100%; height: 12px; margin: 5px 0; }
.chart-bar-bg { fill: var(--border); }
.chart-bar-fill { fill: var(--primary); }
.usage-agent-detail > summary { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.usage-agent-detail .usage-trend { min-width: 360px; max-width: 500px; margin-top: 14px; }
.usage-warnings { display: grid; gap: 4px; min-width: 100px; }
.usage-warnings .tag { white-space: normal; }
.log-filters { grid-template-columns: repeat(3, minmax(150px, 1fr)); }
.log-filters input[type="checkbox"] { width: 20px; height: 20px; accent-color: var(--primary); }
.log-console { overflow-x: auto; color: var(--text); background: var(--surface); border-color: var(--border); }
.log-row { grid-template-columns: 190px 65px 130px minmax(240px, 1fr) 115px 65px 75px; min-width: 1060px; overflow: visible; border-color: var(--border); }
.log-row:hover { background: var(--primary-soft); }
.log-time, .log-logger, .log-level { color: var(--muted); }
.log-row.level-error .log-level, .log-row.level-critical .log-level { color: var(--danger); }
.log-row.level-warning .log-level { color: var(--warning); }
.log-row.level-debug .log-level { color: var(--muted); opacity: .75; }
.log-request { max-width: 115px; padding: 0; text-align: left; font: inherit; overflow: hidden; text-overflow: ellipsis; }
.log-message { white-space: normal; }
.log-message > summary { cursor: pointer; overflow-wrap: anywhere; }
.log-message pre { max-height: 320px; overflow: auto; white-space: pre-wrap; font: inherit; }
.log-detail { color: var(--text); border-color: var(--border); background: var(--bg); }
.log-status { margin: 12px 0; }
.health-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-bottom: 18px; }
.health-light { display: flex; align-items: center; gap: 9px; padding: 14px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface); color: var(--text); text-decoration: none; }
.health-light small { margin-left: auto; }
.health-light:hover { border-color: var(--primary); }
.overview-alert { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border); text-decoration: none; }
.overview-alert > span:not(.tag) { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.overview-alert small { color: var(--muted); }
/* ---------- 教室终端与点名广播 ---------- */
.segmented { display: inline-flex; gap: 6px; margin-bottom: 12px; }
.segmented button[aria-pressed="true"] { background: var(--primary); color: #fff; }
.quick-picks { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.quick-picks input { flex: 1 1 160px; }
.quick-picks button { padding: 4px 10px; font-size: 13px; }
.student-pick-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 6px; max-height: 260px; overflow-y: auto; padding: 4px; border: 1px solid var(--border); border-radius: 9px; }
.student-pick-item { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 8px; cursor: pointer; }
.student-pick-item:hover { background: var(--bg); }
.student-pick-item .student-no { color: var(--muted); font-variant-numeric: tabular-nums; font-size: 12px; }
.broadcast-preview { margin: 14px 0; padding: 12px 14px; border: 1px solid var(--border); border-left: 3px solid var(--primary); border-radius: 9px; background: var(--surface); }
.broadcast-texts { margin: 8px 0; padding-left: 22px; font-size: 20px; line-height: 1.6; }
.broadcast-texts li { margin-bottom: 4px; }
.pairing-code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 30px; letter-spacing: 0.14em; margin: 10px 0; }
.device-list { margin: 6px 0; padding-left: 20px; color: var(--text); }
.device-list li { margin-bottom: 3px; }
.warning-list { margin: 8px 0; padding-left: 20px; color: var(--danger); }
.volume-row { display: flex; align-items: center; gap: 12px; margin: 10px 0; }
.volume-row input[type="range"] { flex: 1; }
.checkbox-row { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
.radio-row { display: flex; align-items: baseline; gap: 8px; padding: 4px 0; cursor: pointer; }
.radio-row small { color: var(--muted); }
.monitor-player { margin-top: 12px; padding: 12px; border: 1px dashed var(--border); border-radius: 9px; background: var(--bg); }
@media (max-width: 1000px) {
  .settings-layout { grid-template-columns: 155px minmax(0, 1fr); gap: 12px; }
  .settings-editor .config-setting-row { grid-template-columns: 1fr; gap: 12px; }
  .agent-inline-models { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .health-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .usage-summary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .settings-layout { grid-template-columns: minmax(0, 1fr); }
  .settings-tree { position: static; display: flex; overflow-x: auto; }
  .settings-tree button { white-space: nowrap; flex-shrink: 0; }
  .settings-savebar { bottom: 4px; padding: 10px; }
  .settings-savebar > b { width: 100%; }
  .settings-savebar > .spacer { display: none; }
  .settings-savebar .tag { display: none; }
  .settings-toolbar { gap: 10px; }
  .settings-toolbar > input { flex-basis: 100%; }
  .health-grid, .agent-inline-models, .log-filters, .admin-two-col { grid-template-columns: minmax(0, 1fr); }
  .student-pick-list { grid-template-columns: minmax(0, 1fr); }
  .broadcast-texts { font-size: 17px; }
  .overview-alert small { display: none; }
  .access-class-detail { width: 84vw; min-width: 260px; }
}
.classroom-player video { width: 100%; max-height: 70vh; background: #111; border-radius: 10px; }
.classroom-player audio { width: 100%; margin-top: 8px; }