* { box-sizing: border-box; }
body {
  font-family: "PingFang TC", "Noto Sans TC", system-ui, sans-serif;
  margin: 0;
  background: #f4f6f9;
  color: #1a1a1a;
}
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.5rem;
  background: #0f172a;
  color: #fff;
}
.topbar a { color: #e2e8f0; text-decoration: none; margin-left: 1rem; }
.brand { font-weight: 700; color: #fff !important; margin-left: 0 !important; }
.container { max-width: 720px; margin: 1.5rem auto; padding: 0 1rem 3rem; }
.card {
  background: #fff;
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
  box-shadow: 0 1px 3px rgba(0,0,0,.08);
}
.card.highlight { border: 1px solid #3b82f6; }
.narrow { max-width: 400px; margin: 2rem auto; }
h1 { font-size: 1.5rem; margin-top: 0; }
label { display: block; margin: 0.75rem 0 0.25rem; font-size: 0.9rem; }
input, select, textarea {
  width: 100%;
  padding: 0.5rem 0.65rem;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 1rem;
}
.btn {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 6px;
  background: #e2e8f0;
  cursor: pointer;
  font-size: 0.95rem;
  text-decoration: none;
  color: #0f172a;
}
.btn.primary { background: #2563eb; color: #fff; }
.btn.small { margin-top: 0; margin-left: 0.5rem; padding: 0.35rem 0.65rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.muted { color: #64748b; font-size: 0.9rem; }
.error { color: #b91c1c; background: #fef2f2; padding: 0.5rem; border-radius: 6px; }
.success { color: #166534; background: #f0fdf4; padding: 0.5rem; border-radius: 6px; }
.status-grid { display: flex; gap: 0.5rem; flex-wrap: wrap; margin: 1rem 0; }
.status { padding: 0.35rem 0.75rem; border-radius: 999px; font-size: 0.85rem; }
.status.ok { background: #dcfce7; color: #166534; }
.status.pending { background: #fef9c3; color: #854d0e; }
.copy-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: #f1f5f9;
  padding: 0.5rem;
  border-radius: 6px;
  word-break: break-all;
}
.copy-input {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
  padding: 0.25rem 0;
}
.copy-msg { font-size: 0.85rem; margin: 0.35rem 0 0; }
.warn-box {
  color: #92400e;
  background: #fffbeb;
  border: 1px solid #fcd34d;
  padding: 0.65rem 0.85rem;
  border-radius: 6px;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}
.trial-banner {
  border: 2px solid #fb923c;
  background: #fff7ed;
}
.trial-banner.expired {
  border-color: #f87171;
  background: #fef2f2;
}
.trial-banner h2 {
  margin-top: 0;
  color: #c2410c;
}
.trial-banner.expired h2 {
  color: #b91c1c;
}
.chat-list { list-style: none; padding: 0; }
.chat-list li { padding: 0.5rem 0; border-bottom: 1px solid #e2e8f0; font-size: 0.9rem; }
.role { font-weight: 600; text-transform: uppercase; font-size: 0.75rem; color: #64748b; margin-right: 0.5rem; }
.industry-grid { display: grid; gap: 0.65rem; margin: 0.75rem 0; }
.industry-option {
  display: block;
  cursor: pointer;
  border: 2px solid #e2e8f0;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  background: #fff;
}
.industry-option:has(input:checked) {
  border-color: #2563eb;
  background: #eff6ff;
}
.industry-option input { width: auto; margin-right: 0.35rem; vertical-align: middle; }
.industry-title { font-weight: 600; display: block; }
.industry-tagline { display: block; font-size: 0.85rem; margin-top: 0.2rem; }
.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-top: 1rem;
  font-size: 0.88rem;
  line-height: 1.45;
}
.checkbox-row input[type="checkbox"] {
  width: auto;
  margin-top: 0.2rem;
  flex-shrink: 0;
}
.legal-hint { font-size: 0.82rem; margin-top: 0.5rem; }
.quota-bar {
  height: 10px;
  background: #e2e8f0;
  border-radius: 6px;
  overflow: hidden;
  margin: 0.75rem 0;
}
.quota-bar-fill {
  height: 100%;
  background: #2563eb;
  border-radius: 6px;
  transition: width 0.3s ease;
}
.quota-bar-fill.quota-warn { background: #f59e0b; }
.quota-bar-fill.quota-full { background: #dc2626; }
.quota-hint {
  margin: 0.5rem 0 0;
  padding-left: 1.1rem;
  font-size: 0.85rem;
}
.admin-table-wrap { overflow-x: auto; }
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.admin-table th,
.admin-table td {
  padding: 0.5rem 0.65rem;
  border-bottom: 1px solid #e2e8f0;
  text-align: left;
  vertical-align: middle;
}
.admin-table code { font-size: 0.8rem; }
.admin-inline-form {
  display: flex;
  gap: 0.35rem;
  align-items: center;
  margin: 0;
}
.admin-inline-form input[type="number"] {
  width: 6.5rem;
  margin: 0;
}