* { box-sizing: border-box; }
body {
  font-family: system-ui, "Segoe UI", Roboto, "PingFang SC", sans-serif;
  margin: 0;
  padding: 1rem 1.25rem 2rem;
  background: #f4f6f9;
  color: #1a1a1a;
}
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}
.top h1 { font-size: 1.25rem; margin: 0; }
.card {
  background: #fff;
  border-radius: 10px;
  padding: 1.25rem;
  box-shadow: 0 1px 3px rgba(0,0,0,.08);
}
.card.narrow { max-width: 400px; }
.card input[type="password"] { width: 100%; margin: .5rem 0; padding: .5rem; }
.err { color: #c0392b; }
.toolbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: .75rem;
}
.inline { display: inline; margin: 0; }
.btn {
  padding: .4rem .75rem;
  border-radius: 6px;
  border: 1px solid #cbd5e1;
  background: #fff;
  cursor: pointer;
  font-size: .875rem;
}
.btn.ghost { background: transparent; }
.btn.small { padding: .2rem .5rem; font-size: .8rem; }
.btn.danger { border-color: #e74c3c; color: #c0392b; }
form.inline.danger { margin-left: auto; }
.table-wrap {
  background: #fff;
  border-radius: 10px;
  overflow: auto;
  box-shadow: 0 1px 3px rgba(0,0,0,.08);
}
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
th, td { padding: .6rem .75rem; text-align: left; border-bottom: 1px solid #eee; vertical-align: top; }
th { background: #fafbfc; font-weight: 600; }
.nowrap { white-space: nowrap; }
.cell-title .t { font-weight: 500; }
.cell-title .d { color: #64748b; font-size: .8rem; margin-top: .2rem; white-space: pre-wrap; }
.empty { text-align: center; color: #94a3b8; padding: 2rem !important; }
#dlg {
  border: none;
  border-radius: 12px;
  padding: 0;
  max-width: min(900px, 96vw);
}
#dlg::backdrop { background: rgba(15,23,42,.45); }
#dlg-body { padding: 1rem 1.25rem; max-height: 70vh; overflow: auto; }
.detail-block h4 { margin: 1rem 0 .35rem; font-size: .85rem; color: #475569; }
.detail-block .code {
  margin: 0;
  padding: .65rem;
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 6px;
  font-size: .75rem;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

/* 顶部标签：收件箱 / 方糖配置 / 导出配置 */
.nav.nav-tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 2px;
  margin: 0 0 1.25rem;
  padding: 4px;
  background: #e2e8f0;
  border-radius: 12px;
  box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.06);
}
a.nav-tab {
  display: inline-block;
  padding: .5rem 1.1rem;
  border-radius: 9px;
  text-decoration: none;
  color: #475569;
  background: transparent;
  border: none;
  font-size: .9rem;
  font-weight: 500;
  transition: background .15s, color .15s, box-shadow .15s;
}
a.nav-tab:hover {
  color: #1e293b;
  background: rgba(255, 255, 255, 0.55);
}
a.nav-tab.active {
  background: #fff;
  color: #0f172a;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.12);
}

.ft-wrap { max-width: 920px; }
.lead { color: #475569; line-height: 1.6; margin-top: 0; }
.lead a { color: #2563eb; }

.grid-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}
@media (max-width: 720px) {
  .grid-form { grid-template-columns: 1fr; }
}
.grid-form label { display: block; font-size: .85rem; color: #475569; }
.grid-form input,
.grid-form select {
  width: 100%;
  margin-top: .35rem;
  padding: .5rem .6rem;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: .9rem;
}
.grid-form label.full { grid-column: 1 / -1; }
.hidden { display: none !important; }

.btn-row { display: flex; align-items: center; gap: .75rem; margin-bottom: .75rem; }
.btn.primary {
  background: #2563eb;
  color: #fff;
  border-color: #2563eb;
}
.btn.primary:hover { filter: brightness(1.05); }
.hint { font-size: .85rem; color: #16a34a; }

.json-label { display: block; font-size: .85rem; color: #475569; }
.json-out {
  width: 100%;
  margin-top: .35rem;
  font-family: ui-monospace, monospace;
  font-size: .8rem;
  line-height: 1.45;
  padding: .75rem;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  resize: vertical;
  background: #f8fafc;
}

.hint-block {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid #e2e8f0;
  font-size: .88rem;
  color: #64748b;
}
.hint-block h3 { margin: 0 0 .5rem; font-size: .95rem; color: #334155; }
.hint-block ul { margin: 0; padding-left: 1.2rem; }
.hint-block li { margin: .35rem 0; }

.toolbar-split {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem 1rem;
  margin-bottom: 1rem;
}
.toolbar-split .toolbar-left { flex: 1 1 auto; min-width: 120px; }
.filter-form {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem .75rem;
}
.filter-form label {
  font-size: .88rem;
  color: #475569;
  display: flex;
  align-items: center;
  gap: .35rem;
}
.filter-form input[type="date"] {
  padding: .35rem .5rem;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
}

.export-page {
  max-width: 640px;
}
.export-hint {
  margin: 0 0 1.25rem;
  font-size: .88rem;
  color: #64748b;
  line-height: 1.65;
}
.export-form-block {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1rem;
}
.export-row { margin: 0; }
.export-control {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  font-size: .88rem;
  color: #475569;
  max-width: 280px;
}
.export-control input[type="date"] {
  padding: .5rem .65rem;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: .95rem;
}
.export-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem 1rem;
  margin-top: .25rem;
}
.export-tip {
  font-size: .82rem;
  color: #94a3b8;
}
.export-fieldset {
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  padding: .65rem 1rem;
  margin: 0;
}
.export-fieldset legend {
  font-size: .8rem;
  padding: 0 .35rem;
  color: #64748b;
}
.inline-radio, .inline-check {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  margin-right: 1.25rem;
  font-size: .88rem;
  cursor: pointer;
}
.inline-check.full-width {
  display: flex;
  margin-right: 0;
  align-items: flex-start;
  line-height: 1.45;
}
.inline-check.full-width input { margin-top: .2rem; }
.table-wrap td.mono {
  font-family: ui-monospace, monospace;
  font-size: .82rem;
}