:root {
  --bg: #f4f6fa;
  --card: #ffffff;
  --text: #1f2933;
  --muted: #7b8794;
  --border: #e4e9f0;
  --primary: #2f6fed;
  --primary-dark: #1d4fc4;
  --danger: #d92d20;
  --danger-bg: #fef1f0;
  --warn: #b54708;
  --warn-bg: #fffaeb;
  --ok: #12805c;
  --ok-bg: #e9f8f2;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  background: var(--bg); color: var(--text); min-height: 100vh;
}

/* ---------- 顶栏 ---------- */
.topbar {
  background: #fff; border-bottom: 1px solid var(--border);
  padding: 14px 24px; position: sticky; top: 0; z-index: 50;
  display: flex; flex-direction: column; gap: 12px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo {
  width: 44px; height: 44px; border-radius: 10px; background: linear-gradient(135deg, #2f6fed, #6b9bff);
  color: #fff; font-size: 22px; font-weight: bold; display: flex; align-items: center; justify-content: center;
}
.brand h1 { font-size: 18px; }
.brand .sub { font-size: 12px; color: var(--muted); }
.tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.tab {
  border: none; background: transparent; padding: 8px 14px; border-radius: 8px;
  font-size: 14px; cursor: pointer; color: var(--muted); transition: all .15s;
}
.tab:hover { background: #eef2fb; color: var(--text); }
.tab.active { background: var(--primary); color: #fff; }
.tab.right { margin-left: auto; border: 1px dashed var(--border); color: var(--warn); }
.tab.right.enabled { border-style: solid; color: var(--ok); }
.badge {
  background: var(--danger); color: #fff; border-radius: 10px; font-size: 11px;
  padding: 1px 7px; margin-left: 4px; vertical-align: 2px;
}
.badge.hidden { display: none; }

/* ---------- 布局 ---------- */
main { max-width: 1180px; margin: 0 auto; padding: 20px 16px 60px; }
.page { display: none; }
.page.active { display: block; animation: fadeIn .2s; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; } }

.toolbar { display: flex; align-items: center; gap: 14px; margin-bottom: 6px; flex-wrap: wrap; }
.toolbar h2 { font-size: 20px; }
.hint { color: var(--muted); font-size: 13px; margin-bottom: 14px; }
.hint-inline { color: var(--muted); font-size: 12px; }

.stat-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px; margin-bottom: 18px;
}
.stat-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 18px; text-align: center;
}
.stat-card .num { font-size: 30px; font-weight: 700; }
.stat-card .lbl { font-size: 13px; color: var(--muted); margin-top: 4px; }
.stat-card.warn .num { color: var(--warn); }
.stat-card.danger .num { color: var(--danger); }
.stat-card.ok .num { color: var(--ok); }

.panel-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 16px;
}
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 18px;
}
.card.wide { grid-column: span 2; }
.card h3 { font-size: 15px; margin-bottom: 14px; }
@media (max-width: 860px) { .panel-grid { grid-template-columns: 1fr; } .card.wide { grid-column: span 1; } }

.chart-row { display: flex; align-items: center; gap: 20px; justify-content: center; flex-wrap: wrap; }
.legend { list-style: none; font-size: 13px; }
.legend li { display: flex; align-items: center; gap: 8px; margin: 6px 0; }
.legend .dot { width: 10px; height: 10px; border-radius: 3px; }
.legend .val { color: var(--muted); margin-left: auto; padding-left: 16px; font-variant-numeric: tabular-nums; }

/* ---------- 待办列表 / 提醒 ---------- */
.pending-list, .alert-list, .mini-alerts { display: flex; flex-direction: column; gap: 10px; }
.pending-item, .alert-item {
  display: flex; align-items: center; gap: 12px; padding: 10px 12px;
  border-radius: 10px; border: 1px solid var(--border); font-size: 14px; flex-wrap: wrap;
}
.pending-item .title, .alert-item .title { flex: 1; min-width: 200px; }
.pending-item .meta, .alert-item .meta { color: var(--muted); font-size: 12px; }
.tag {
  font-size: 12px; padding: 3px 10px; border-radius: 20px; white-space: nowrap; font-weight: 600;
}
.tag.processing { background: #eef2fb; color: var(--primary); }
.tag.dueSoon { background: var(--warn-bg); color: var(--warn); }
.tag.overdue { background: var(--danger-bg); color: var(--danger); }
.tag.done, .tag.returned, .tag.ok { background: var(--ok-bg); color: var(--ok); }
.tag.active { background: #eef2fb; color: var(--primary); }
.tag.overtime { background: var(--danger-bg); color: var(--danger); }
.empty { color: var(--muted); text-align: center; padding: 24px; font-size: 13px; }

/* ---------- 表格 ---------- */
.filter-bar { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.filter-bar input {
  flex: 1; min-width: 200px; padding: 9px 12px; border: 1px solid var(--border);
  border-radius: 8px; font-size: 14px; outline: none;
}
.filter-bar input:focus { border-color: var(--primary); }
.filter-bar select { padding: 9px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; background: #fff; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 11px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: 12px; color: var(--muted); font-weight: 600; white-space: nowrap; }
td .sub { display: block; font-size: 12px; color: var(--muted); margin-top: 2px; }
td .remain { font-size: 12px; margin-top: 3px; white-space: nowrap; }
td .remain.warn { color: var(--warn); }
td .remain.danger { color: var(--danger); }
td .remain.ok { color: var(--ok); }

.progress {
  height: 6px; background: #edf0f5; border-radius: 4px; width: 130px; margin-top: 5px; overflow: hidden;
}
.progress > div { height: 100%; border-radius: 4px; background: var(--primary); transition: width .4s; }
.progress > div.warn { background: var(--warn); }
.progress > div.danger { background: var(--danger); }

.btn {
  border: 1px solid var(--border); background: #fff; color: var(--text);
  padding: 7px 14px; border-radius: 8px; font-size: 13px; cursor: pointer; transition: all .15s;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); color: #fff; }
.btn.danger { color: var(--danger); }
.btn.danger:hover { border-color: var(--danger); background: var(--danger-bg); }
.btn.small { padding: 4px 10px; font-size: 12px; }
.ops { white-space: nowrap; }
.ops .btn { margin-right: 6px; }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(15, 23, 42, .45); z-index: 100;
  display: flex; align-items: center; justify-content: center; padding: 16px;
}
.modal-mask.hidden, .hidden { display: none; }
.modal {
  background: #fff; border-radius: 14px; padding: 24px; width: 100%; max-width: 460px;
  max-height: 90vh; overflow-y: auto; animation: fadeIn .18s;
}
.modal h3 { margin-bottom: 16px; font-size: 17px; }
.modal label { display: block; font-size: 13px; color: var(--text); margin-bottom: 12px; font-weight: 600; }
.modal label i { color: var(--danger); font-style: normal; }
.modal input, .modal textarea {
  display: block; width: 100%; margin-top: 5px; padding: 9px 12px;
  border: 1px solid var(--border); border-radius: 8px; font-size: 14px; font-family: inherit;
}
.modal input:focus, .modal textarea:focus { outline: none; border-color: var(--primary); }
.modal-ops { display: flex; justify-content: flex-end; gap: 10px; margin-top: 8px; }

/* ---------- Toast ---------- */
.toasts { position: fixed; top: 74px; right: 18px; z-index: 200; display: flex; flex-direction: column; gap: 10px; }
.toast {
  background: #fff; border: 1px solid var(--border); border-left: 4px solid var(--primary);
  border-radius: 10px; padding: 12px 16px; box-shadow: 0 6px 20px rgba(15,23,42,.12);
  max-width: 330px; font-size: 13px; animation: slideIn .25s;
}
.toast.warn { border-left-color: var(--warn); }
.toast.danger { border-left-color: var(--danger); }
.toast .t { font-weight: 700; margin-bottom: 3px; }
.toast .d { color: var(--muted); }
@keyframes slideIn { from { opacity: 0; transform: translateX(24px); } to { opacity: 1; } }

/* ---------- 柱状图 ---------- */
.bar-chart { display: flex; align-items: flex-end; gap: 14px; height: 170px; padding: 8px 4px 0; }
.bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; height: 100%; justify-content: flex-end; }
.bar-col .cnt { font-size: 12px; color: var(--muted); }
.bar-col .bar {
  width: 70%; max-width: 44px; min-height: 3px; border-radius: 6px 6px 0 0;
  background: linear-gradient(180deg, #6b9bff, var(--primary));
}
.bar-col .bar.today { background: linear-gradient(180deg, #ffb02e, #d97706); }
.bar-col .day { font-size: 12px; color: var(--muted); white-space: nowrap; }