:root {
  --pdf-text: #192132;
  --pdf-text-soft: #5f6b81;
  --pdf-accent: #2c71f6;
  --pdf-accent-strong: #1e56c9;
  --pdf-accent-soft: #ebf3ff;
  --pdf-surface: #ffffff;
  --pdf-surface-soft: #f7faff;
  --pdf-surface-muted: #f3f6fb;
  --pdf-border: #dbe5f3;
  --pdf-border-strong: #c2d2ea;
  --pdf-danger: #dc3b48;
  --pdf-success: #1f9d65;
  --pdf-warning: #b76d00;
  --pdf-shadow-soft: 0 22px 44px rgba(23, 41, 82, 0.08);
  --pdf-shadow-hover: 0 28px 60px rgba(22, 49, 112, 0.12);
  --pdf-radius-xl: 28px;
  --pdf-radius-lg: 22px;
  --pdf-radius-md: 16px;
  --pdf-radius-sm: 12px;
}

.pdf-toolbox-workspace .panel-intro .tags span {
  background: linear-gradient(135deg, #2d6df6 0%, #5394ff 100%);
}

.pdf-toolbox-workspace .tool-billing .bill-mode {
  color: #1f4ea8;
  background: #ebf3ff;
  border-color: #c7dafb;
}

.pdf-toolbox-workspace .tool-billing .bill-credit {
  color: #346539;
  background: #ecfbf0;
  border-color: #bbe5c3;
}

.intro-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.intro-highlights span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 13px;
  border-radius: 999px;
  background: linear-gradient(180deg, #f7fbff 0%, #edf4ff 100%);
  border: 1px solid #d7e6fb;
  color: #2856b0;
  font-size: 13px;
  font-weight: 700;
}

.pdf-toolbox-shell {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 18px;
}

.toolbox-sidebar,
.toolbox-main {
  min-width: 0;
}

.toolbox-block {
  padding: 18px;
  border-radius: var(--pdf-radius-xl);
  background:
    radial-gradient(circle at top right, rgba(112, 170, 255, 0.12), transparent 30%),
    linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
  border: 1px solid var(--pdf-border);
  box-shadow: var(--pdf-shadow-soft);
}

.toolbox-sidebar .toolbox-block {
  position: sticky;
  top: 12px;
}

.toolbox-topgrid,
.toolbox-bottomgrid {
  display: grid;
  gap: 18px;
}

.toolbox-topgrid {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  margin-bottom: 18px;
}

.toolbox-bottomgrid {
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

.section-pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, #2162ea 0%, #4a8dff 100%);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.section-mode-chip {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid #cfe0ff;
  background: linear-gradient(180deg, #fafdff 0%, #eef5ff 100%);
  color: #2451a5;
  font-size: 12px;
  font-weight: 800;
  line-height: 1.4;
  text-align: center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.82);
}

.section-pill-soft {
  background: linear-gradient(180deg, #eef5ff 0%, #e5efff 100%);
  color: #2357af;
}

.pill-meta,
.page-stage-meta span {
  color: var(--pdf-text-soft);
  font-size: 12px;
  line-height: 1.7;
}

.mode-group-title {
  margin: 18px 0 10px;
  color: #24457d;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mode-grid {
  display: grid;
  gap: 10px;
}

.mode-card {
  position: relative;
  width: 100%;
  text-align: left;
  padding: 14px 15px;
  border-radius: 18px;
  border: 1px solid var(--pdf-border);
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  color: var(--pdf-text);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.mode-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  border-radius: 18px 0 0 18px;
  background: linear-gradient(180deg, #72a9ff 0%, #2f73f5 100%);
  transition: width 0.18s ease;
}

.mode-card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  line-height: 1.45;
}

.mode-card span {
  display: block;
  color: var(--pdf-text-soft);
  font-size: 12px;
  line-height: 1.7;
}

.mode-card:hover,
.mode-card.is-active {
  transform: translateY(-2px);
  border-color: #9dc0ff;
  box-shadow: var(--pdf-shadow-hover);
}

.mode-card.is-active {
  background: linear-gradient(135deg, #2a67ee 0%, #70a8ff 100%);
  border-color: #2c70f6;
  box-shadow:
    0 20px 40px rgba(33, 90, 211, 0.22),
    inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.mode-card.is-active::before {
  width: 7px;
}

.mode-card.is-active strong,
.mode-card.is-active span {
  color: #fff;
}

.mode-card.is-active strong::after {
  content: "当前";
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 0 8px;
  margin-left: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
  vertical-align: middle;
}

.active-mode-banner {
  display: grid;
  gap: 16px;
  padding: 18px 18px 16px;
  margin-bottom: 16px;
  border-radius: 22px;
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.32), transparent 28%),
    linear-gradient(135deg, #235fe6 0%, #79b0ff 100%);
  color: #fff;
  box-shadow: 0 24px 50px rgba(34, 94, 219, 0.24);
}

.active-mode-copy h3 {
  margin: 0 0 8px;
  font-size: 24px;
  line-height: 1.2;
}

.active-mode-copy p {
  margin: 0;
  color: rgba(255, 255, 255, 0.92);
  font-size: 14px;
  line-height: 1.8;
}

.active-mode-eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 11px;
  margin-bottom: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.05em;
}

.active-mode-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.active-mode-fact,
.active-mode-tipline {
  padding: 13px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.13);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
}

.active-mode-fact span,
.active-mode-tipline span {
  display: block;
  margin-bottom: 6px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 12px;
  font-weight: 700;
}

.active-mode-fact strong,
.active-mode-tipline strong {
  display: block;
  color: #fff;
  font-size: 14px;
  line-height: 1.7;
}

.active-mode-tipline {
  background: rgba(12, 33, 90, 0.18);
}

.tool-dropzone {
  display: grid;
  gap: 8px;
  padding: 22px 20px;
  border-radius: 22px;
  border: 1px dashed #97bbff;
  background:
    radial-gradient(circle at top left, rgba(57, 118, 255, 0.12), transparent 34%),
    linear-gradient(180deg, #fafdff 0%, #f3f8ff 100%);
  cursor: pointer;
  transition: border-color 0.16s ease, transform 0.16s ease, box-shadow 0.16s ease;
}

.tool-dropzone:hover,
.tool-dropzone.is-dragover {
  border-color: #4186ff;
  transform: translateY(-1px);
  box-shadow: 0 18px 38px rgba(37, 86, 193, 0.12);
}

.tool-dropzone strong {
  color: var(--pdf-text);
  font-size: 16px;
}

.tool-dropzone span {
  color: var(--pdf-text-soft);
  font-size: 13px;
  line-height: 1.8;
}

.queue-list,
.result-list,
.page-grid {
  margin-top: 14px;
}

.queue-list,
.result-list {
  display: grid;
  gap: 12px;
}

.page-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
  gap: 14px;
}

.empty-state {
  padding: 18px;
  border-radius: 18px;
  background: linear-gradient(180deg, #f9fbff 0%, #f3f7fd 100%);
  border: 1px dashed var(--pdf-border-strong);
  color: var(--pdf-text-soft);
  font-size: 13px;
  line-height: 1.9;
}

.queue-card,
.page-card,
.result-card-item {
  border-radius: 20px;
  border: 1px solid var(--pdf-border);
  background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
  box-shadow: 0 16px 32px rgba(29, 59, 126, 0.07);
  overflow: hidden;
}

.queue-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  padding: 15px;
}

.queue-card-main {
  min-width: 0;
}

.queue-card-title,
.result-card-title {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.queue-card-title strong,
.result-card-title strong {
  color: var(--pdf-text);
  font-size: 14px;
  line-height: 1.5;
  word-break: break-all;
}

.queue-card-meta,
.result-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-card {
  position: relative;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
}

.page-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--pdf-shadow-hover);
}

.page-card.is-selected {
  border-color: #88b4ff;
  box-shadow: 0 24px 46px rgba(41, 91, 201, 0.14);
}

.page-card-thumb {
  aspect-ratio: 3 / 4;
  background: linear-gradient(180deg, #eef4ff 0%, #dde8f9 100%);
  display: grid;
  place-items: center;
  padding: 10px;
}

.page-card-thumb canvas,
.page-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 10px 18px rgba(25, 41, 79, 0.08);
}

.page-card-body {
  padding: 12px;
  display: grid;
  gap: 7px;
}

.page-card-body strong {
  color: var(--pdf-text);
  font-size: 13px;
}

.page-card-body span {
  color: var(--pdf-text-soft);
  font-size: 12px;
}

.page-card-check {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid #b9cff3;
  color: #2d60c7;
  font-size: 13px;
  font-weight: 800;
}

.toolbox-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.toolbox-actions button,
.section-actions button,
.queue-card button,
.result-card-item a,
.result-card-item button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 15px;
  border-radius: 14px;
  border: 1px solid #c8d7ef;
  background: linear-gradient(180deg, #ffffff 0%, #f6f9fe 100%);
  color: #24416f;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.14s ease, box-shadow 0.14s ease, border-color 0.14s ease;
}

.toolbox-actions button:hover,
.section-actions button:hover,
.queue-card button:hover,
.result-card-item a:hover,
.result-card-item button:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 26px rgba(37, 76, 163, 0.11);
  border-color: #8fb4ef;
}

.toolbox-actions .primary {
  color: #fff;
  border-color: #2764e8;
  background: linear-gradient(135deg, #2568f3 0%, #5598ff 100%);
}

.queue-card button.danger,
.result-card-item button.danger {
  color: #b42633;
  border-color: #f0c0c6;
  background: linear-gradient(180deg, #fff7f8 0%, #fff1f2 100%);
}

.tool-chip {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--pdf-surface-muted);
  border: 1px solid var(--pdf-border);
  color: var(--pdf-text-soft);
  font-size: 12px;
  font-weight: 700;
}

.tool-chip.is-selected,
.tool-chip.success {
  background: #eef8f2;
  border-color: #bbddc8;
  color: #28744d;
}

.tool-chip.warning {
  background: #fff6e9;
  border-color: #f3d8a9;
  color: #9a5b00;
}

.tool-chip.danger {
  background: #fff4f5;
  border-color: #f1c7cd;
  color: #bb2d3b;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.control,
.mode-fields {
  display: contents;
}

.control input,
.control select,
.result-textarea {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid var(--pdf-border);
  border-radius: 14px;
  background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
  color: var(--pdf-text);
  font-size: 14px;
}

.control input,
.control select {
  min-height: 46px;
  padding: 0 14px;
}

.control input[type="range"] {
  padding: 0;
  min-height: auto;
  border: 0;
  background: transparent;
}

.control {
  display: grid;
  gap: 7px;
}

.control span {
  color: #2b3f66;
  font-size: 13px;
  font-weight: 700;
}

.control small {
  color: var(--pdf-text-soft);
  font-size: 12px;
  line-height: 1.7;
}

.control-wide {
  grid-column: 1 / -1;
}

.checkbox-control {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--pdf-border);
  background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
}

.toggle-line {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--pdf-text-soft);
  font-size: 12px;
  line-height: 1.75;
}

.toggle-line input {
  width: 16px;
  height: 16px;
  margin-top: 2px;
}

.result-badge {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  background: #eff6ff;
  border: 1px solid #cfe0fb;
  color: #275eb9;
  font-size: 12px;
  font-weight: 800;
}

.compact-result {
  display: grid;
  gap: 12px;
}

.result-textarea {
  min-height: 170px;
  padding: 14px;
  line-height: 1.8;
  resize: vertical;
}

.page-stage-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.guide-list {
  display: grid;
  gap: 10px;
}

.guide-item {
  padding: 12px 13px;
  border-radius: 16px;
  border: 1px solid var(--pdf-border);
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  color: var(--pdf-text-soft);
  font-size: 13px;
  line-height: 1.8;
}

.toolbox-stats {
  margin-top: 16px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.stat-card {
  padding: 14px;
  border-radius: 16px;
  background: linear-gradient(180deg, #ffffff 0%, #f9fbff 100%);
  border: 1px solid var(--pdf-border);
  display: grid;
  gap: 6px;
}

.stat-card span {
  color: var(--pdf-text-soft);
  font-size: 12px;
}

.stat-card strong {
  color: var(--pdf-text);
  font-size: 16px;
  line-height: 1.4;
  word-break: break-all;
}

.result-card-item {
  padding: 15px;
  display: grid;
  gap: 12px;
}

.result-card-layout {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.result-card-body {
  min-width: 0;
  display: grid;
  gap: 10px;
}

.result-preview,
.result-icon-tile {
  width: 88px;
  height: 88px;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--pdf-border);
  background: linear-gradient(180deg, #f2f7ff 0%, #e8f0fd 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75);
}

.result-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.result-icon-tile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #2a5fcc;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.result-text-box {
  max-height: 190px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.result-note {
  color: var(--pdf-text-soft);
  font-size: 12px;
  line-height: 1.7;
}

.result-card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tool-tip {
  min-height: 24px;
  margin-top: 14px;
  color: #6d7d96;
  font-size: 13px;
  line-height: 1.8;
}

.tool-tip.error {
  color: var(--pdf-danger);
}

.sortable-ghost {
  opacity: 0.35;
}

.sortable-chosen {
  transform: rotate(1deg);
}

.mode-fields.is-hidden {
  display: none !important;
}

@media (max-width: 1320px) {
  .pdf-toolbox-shell {
    grid-template-columns: 1fr;
  }

  .toolbox-sidebar .toolbox-block {
    position: static;
  }

  .toolbox-topgrid,
  .toolbox-bottomgrid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .section-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .active-mode-facts {
    grid-template-columns: 1fr;
  }

  .settings-grid {
    grid-template-columns: 1fr;
  }

  .page-grid {
    grid-template-columns: repeat(auto-fill, minmax(144px, 1fr));
  }
}

@media (max-width: 640px) {
  .toolbox-block {
    padding: 15px;
    border-radius: 22px;
  }

  .section-mode-chip {
    width: 100%;
    justify-content: center;
  }

  .toolbox-actions button,
  .section-actions button,
  .queue-card button,
  .result-card-item a,
  .result-card-item button {
    width: 100%;
  }

  .queue-card {
    grid-template-columns: 1fr;
  }

  .result-card-layout {
    grid-template-columns: 1fr;
  }

  .result-preview,
  .result-icon-tile {
    width: 100%;
    height: 156px;
  }

  .result-card-item {
    padding: 14px;
  }

  .result-card-links {
    display: grid;
  }

  .active-mode-copy h3 {
    font-size: 20px;
  }

  .page-grid {
    grid-template-columns: 1fr 1fr;
  }
}