:root {
  --bg: #f4f5f7;
  --card: #fff;
  --border: #e5e7eb;
  --text: #111827;
  --muted: #6b7280;
  --primary: #2563eb;
  --ok: #16a34a;
  --err: #dc2626;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Microsoft YaHei", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  min-height: 100vh;
}

.top {
  background: #111827;
  color: #fff;
  padding: 18px 20px;
}
.top h1 { font-size: 20px; font-weight: 600; }
.top-status {
  font-size: 13px;
  color: #9ca3af;
  margin-top: 6px;
}
.top-status.ok { color: #86efac; }
.top-status.warn { color: #fcd34d; }
.top-status.err { color: #fca5a5; }

.layout {
  display: flex;
  max-width: 920px;
  margin: 16px auto 32px;
  min-height: calc(100vh - 100px);
  padding: 0 16px;
}

.sidebar {
  width: 100px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px 0 0 10px;
  padding: 6px 0;
  flex-shrink: 0;
}
.sidebar .nav {
  display: block;
  width: 100%;
  text-align: center;
  padding: 14px 8px;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 14px;
  color: var(--muted);
  border-left: 3px solid transparent;
}
.sidebar .nav:hover { background: #f9fafb; color: var(--text); }
.sidebar .nav.active {
  background: #eff6ff;
  color: var(--primary);
  border-left-color: var(--primary);
  font-weight: 600;
}

.main {
  flex: 1;
  background: var(--card);
  border: 1px solid var(--border);
  border-left: none;
  border-radius: 0 10px 10px 0;
  padding: 24px;
}

.panel { display: none; }
.panel.active { display: block; }

.card h2 { font-size: 17px; margin-bottom: 16px; }

label { display: block; font-size: 13px; color: var(--muted); margin: 14px 0 6px; }
.field-hint {
  margin: 4px 0 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}
.field-hint code { font-size: 11px; background: #f3f4f6; padding: 1px 4px; border-radius: 4px; }
input[type="text"], input:not([type]) {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
}
input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.btn-row { margin-top: 20px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: #1d4ed8; }
.btn-primary:disabled { opacity: 0.65; cursor: wait; }
.btn-primary.is-busy { opacity: 0.85; cursor: wait; }
.btn-lg { padding: 12px 28px; font-size: 15px; font-weight: 600; width: 100%; }

.loading {
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #1d4ed8;
  font-size: 13px;
  font-weight: 500;
}
.gen-banner {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
}
.gen-banner.busy { background: #eff6ff; border: 1px solid #93c5fd; color: #1d4ed8; }
.gen-banner.ok { background: #f0fdf4; border: 1px solid #86efac; color: #166534; }
.gen-banner.err { background: #fef2f2; border: 1px solid #fca5a5; color: #991b1b; }
.top-status.busy { background: #dbeafe; color: #1e40af; }

.save-status {
  margin-top: 16px;
  min-height: 20px;
  font-size: 13px;
  color: var(--muted);
}
.save-status.ok { color: var(--ok); font-weight: 600; }
.save-status.err { color: var(--err); font-weight: 600; }

.out {
  margin-top: 16px;
  padding: 14px;
  border-radius: 8px;
  display: none;
  border: 1px solid var(--border);
  background: #f9fafb;
}
.out.show { display: block; }
.out.pending {
  border-color: #bfdbfe;
  background: #eff6ff;
}
.gen-progress {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.gen-hint {
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}
.spinner {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 3px solid #bfdbfe;
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
.out.ok { border-color: #86efac; background: #f0fdf4; }
.out.err { border-color: #fca5a5; background: #fef2f2; }
.out-title { font-weight: 600; margin-bottom: 8px; }
.out-link { word-break: break-all; font-size: 14px; }
.out-link a { color: var(--primary); }

.qr-grid { margin-top: 16px; padding-top: 16px; border-top: 1px dashed var(--border); }
.qr-pair {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}
.qr-item {
  text-align: center;
  padding: 12px;
  background: #fff;
  border-radius: 12px;
  border: 1px solid var(--border);
}
.qr-label { font-size: 12px; color: var(--muted); margin-bottom: 8px; }
.platform-round-qr {
  width: 200px;
  height: 200px;
  object-fit: contain;
  border-radius: 50%;
}
.square-qr {
  width: 180px;
  height: 180px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px;
  background: #fff;
}
.out-actions { margin-top: 12px; }
.out-actions button {
  padding: 7px 14px;
  margin-right: 8px;
  margin-top: 4px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}

.records-list { display: flex; flex-direction: column; gap: 12px; }
.record-row {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  background: #f9fafb;
}
.record-head {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}
.record-no {
  background: #111827;
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}
.record-meta { font-size: 12px; color: var(--muted); }
.record-remark-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin: 8px 0 4px;
}
.record-remark-row label { margin: 0; font-size: 12px; color: var(--muted); font-weight: 500; }
.record-remark-input {
  flex: 1;
  min-width: 180px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
}
.record-remark-row button {
  padding: 6px 12px;
  font-size: 12px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
}
.record-qr-mini .round-qr-img {
  width: 100px;
  height: 100px;
  object-fit: contain;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: #fff;
}
.record-url { word-break: break-all; font-size: 13px; margin: 4px 0; }
.record-url a { color: var(--primary); }
.record-qr-mini {
  display: flex;
  gap: 16px;
  margin: 12px 0;
  flex-wrap: wrap;
}
.record-qr-mini img {
  width: 100px;
  height: 100px;
  object-fit: contain;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}
.record-actions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.record-actions button {
  padding: 5px 12px;
  font-size: 12px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
}
.record-actions .danger { color: var(--err); }

.muted { color: var(--muted); font-size: 13px; }

@media (max-width: 640px) {
  .layout { flex-direction: column; }
  .sidebar {
    width: 100%;
    display: flex;
    border-radius: 10px 10px 0 0;
  }
  .sidebar .nav { flex: 1; border-left: none; border-bottom: 3px solid transparent; }
  .sidebar .nav.active { border-bottom-color: var(--primary); border-left: none; }
  .main { border-left: 1px solid var(--border); border-radius: 0 0 10px 10px; }
  .row2 { grid-template-columns: 1fr; }
}