@media (min-width: 769px) {
  .seo-article:has(.pn-correction-tool) {
    display: block;
    max-width: 900px;
  }

  .seo-article:has(.pn-correction-tool) > .article-toc {
    position: static;
    max-height: none;
    margin-bottom: 2rem;
  }
}

.pn-correction-tool {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
}

.pn-correction-tool .pn-error-type-bar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-surface);
  border: 2px solid var(--border-default);
}

.pn-error-type-bar label {
  font-size: 0.85rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text-secondary, #94a3b8);
  white-space: nowrap;
}

.pn-error-type-bar select {
  flex: 1;
  padding: 0.5rem 0.75rem;
  background: var(--bg-surface);
  border: 2px solid var(--border-muted);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.2s;
}

.pn-error-type-bar select:focus {
  border-color: var(--primary);
}

.pn-form-panel {
  background: var(--bg-surface);
  border: 2px solid var(--border-default);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.pn-form-panel.pn-panel-right {
  border-color: var(--primary);
}

.pn-panel-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-primary);
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border-default);
  margin-bottom: 0.25rem;
}

.pn-panel-header .pn-panel-icon {
  font-size: 1.1rem;
}

.pn-panel-right .pn-panel-header {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.pn-field-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.pn-field-group label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-secondary, #94a3b8);
}

.pn-field-group input,
.pn-field-group textarea {
  padding: 0.5rem 0.75rem;
  background: var(--bg-surface);
  border: 2px solid var(--border-muted);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.2s;
}

.pn-field-group input:focus,
.pn-field-group textarea:focus {
  border-color: var(--primary);
}

.pn-field-group textarea {
  resize: vertical;
  min-height: 3rem;
}

.pn-field-group input.pn-auto-field {
  background: rgba(30,107,90,0.04);
  border-color: rgba(30,107,90,0.2);
  color: var(--text-secondary, #94a3b8);
}

.pn-field-group input.pn-editable-correction {
  background: rgba(30,107,90,0.06);
  border-color: var(--primary);
  color: var(--text-primary);
}

.pn-rk-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.pn-rk-table th {
  background: rgba(30,107,90,0.08);
  border: 2px solid var(--primary);
  padding: 0.4rem 0.5rem;
  text-align: center;
  font-weight: 700;
  font-size: 0.68rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--primary);
}

.pn-rk-table td {
  border: 2px solid var(--border-default);
  padding: 0.4rem 0.5rem;
  vertical-align: middle;
}

.pn-rk-table td:first-child {
  text-align: center;
  width: 2.5rem;
  font-weight: 700;
  color: var(--text-secondary, #94a3b8);
}

.pn-rk-table .pn-rk-row-minus td {
  background: rgba(239,68,68,0.04);
}

.pn-rk-table .pn-rk-row-minus td:first-child {
  color: #ef4444;
}

.pn-rk-table .pn-rk-row-plus td {
  background: rgba(34,197,94,0.04);
}

.pn-rk-table .pn-rk-row-plus td:first-child {
  color: #22c55e;
}

.pn-rk-table .pn-rk-val {
  font-weight: 600;
  text-align: right;
  white-space: nowrap;
}

.pn-rk-table .pn-rk-val-negative {
  color: #ef4444;
}

.pn-rk-table .pn-rk-val-positive {
  color: #22c55e;
}

.pn-rk-table input {
  width: 100%;
  padding: 0.3rem 0.4rem;
  background: var(--bg-surface);
  border: 2px solid var(--border-muted);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  outline: none;
}

.pn-rk-table input:focus {
  border-color: var(--primary);
}

.pn-rk-table input[readonly] {
  background: rgba(30,107,90,0.04);
  border-color: rgba(30,107,90,0.15);
  color: var(--text-secondary, #94a3b8);
}

.pn-rk-summary {
  display: flex;
  justify-content: space-between;
  padding: 0.6rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  border: 2px solid var(--border-default);
  margin-top: 0.75rem;
}

.pn-rk-summary.pn-diff-positive {
  border-color: rgba(34,197,94,0.3);
  background: rgba(34,197,94,0.06);
  color: #22c55e;
}

.pn-rk-summary.pn-diff-negative {
  border-color: rgba(239,68,68,0.3);
  background: rgba(239,68,68,0.06);
  color: #ef4444;
}

.pn-rk-summary.pn-diff-zero {
  color: var(--text-secondary, #94a3b8);
}

.pn-rk-reason {
  margin-top: 0.75rem;
}

.pn-rk-reason label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-secondary, #94a3b8);
  display: block;
  margin-bottom: 0.25rem;
}

.pn-rk-reason textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  background: var(--bg-surface);
  border: 2px solid var(--border-muted);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  outline: none;
  resize: vertical;
  min-height: 3rem;
  box-sizing: border-box;
}

.pn-rk-reason textarea:focus {
  border-color: var(--primary);
}

.pn-date-note {
  grid-column: 1 / -1;
  padding: 1rem 1.25rem;
  background: rgba(234,179,8,0.06);
  border: 2px solid rgba(234,179,8,0.3);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #eab308;
  line-height: 1.5;
}

.pn-date-note strong {
  color: #facc15;
}

.pn-lines-wrap {
  border-top: 1px solid var(--border-muted);
  padding-top: 0.5rem;
}

.pn-line-item {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-muted);
}

.pn-line-item:last-child {
  border-bottom: none;
}

.pn-line-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.25rem;
}

.pn-line-num {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-secondary, #94a3b8);
}

.pn-remove-line {
  background: none;
  border: 2px solid var(--border-muted);
  color: var(--text-secondary, #94a3b8);
  font-size: 1rem;
  line-height: 1;
  padding: 0 0.35rem;
  cursor: pointer;
  font-family: var(--font-mono);
  transition: border-color 0.2s, color 0.2s;
}

.pn-remove-line:hover {
  border-color: #ef4444;
  color: #ef4444;
}

.pn-line-desc {
  width: 100%;
  padding: 0.4rem 0.6rem;
  background: var(--bg-surface);
  border: 2px solid var(--border-muted);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  outline: none;
  margin-bottom: 0.35rem;
  box-sizing: border-box;
  transition: border-color 0.2s;
}

.pn-line-desc:focus {
  border-color: var(--primary);
}

.pn-line-nums {
  display: grid;
  grid-template-columns: 4rem 1fr 1fr;
  gap: 0.4rem;
}

.pn-line-nums .pn-field-group {
  gap: 0.15rem;
}

.pn-line-nums input {
  padding: 0.35rem 0.5rem;
  font-size: 0.78rem;
}

.pn-add-line {
  display: block;
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.5rem;
  background: transparent;
  border: 2px dashed var(--border-muted);
  color: var(--text-secondary, #94a3b8);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.pn-add-line:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.pn-tip {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-secondary, #94a3b8);
  opacity: 0.7;
  line-height: 1.3;
  margin-top: 0.15rem;
}

.pn-rk-section {
  grid-column: 1 / -1;
  border: 2px solid var(--border-default);
  padding: 1.25rem;
}

.pn-rk-detected {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.pn-rk-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 0.25rem 0.6rem;
  border: 2px solid var(--primary);
  color: var(--primary);
  background: rgba(30,107,90,0.06);
}

.pn-rk-badge-empty {
  border-color: var(--border-default);
  color: var(--text-secondary, #94a3b8);
  background: transparent;
}

.pn-hidden {
  display: none !important;
}

@media (max-width: 768px) {
  .pn-correction-tool {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .pn-rk-table {
    font-size: 0.72rem;
  }

  .pn-line-nums {
    grid-template-columns: 3.5rem 1fr 1fr;
    gap: 0.3rem;
  }
}