/* 在线工具页 — 沿用官网色板，工具区交互样式 */

.tools-page .btn {
  cursor: pointer;
  font-family: inherit;
}

.tools-page .btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.btn--sm {
  min-height: 2rem;
  padding: 0.3rem 0.75rem;
  font-size: 0.82rem;
}

.tools-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

.tools-intro {
  margin-bottom: 1.75rem;
}

.tools-intro__title {
  margin: 0 0 0.55rem;
  font-family: var(--font-brand);
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 400;
  color: var(--ink);
  line-height: 1.15;
}

.tools-intro__lead {
  margin: 0 0 0.65rem;
  max-width: 36rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.tools-intro__note {
  margin: 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.tools-intro__note a {
  font-weight: 600;
  text-decoration: none;
}

.tools-intro__note a:hover {
  text-decoration: underline;
}

.tool-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
  padding: 0.3rem;
  background: rgba(14, 47, 56, 0.05);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.tool-tab {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.55rem 1rem;
  border-radius: 3px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.tool-tab:hover {
  color: var(--ink);
}

.tool-tab[aria-selected="true"] {
  color: var(--cell);
  background: var(--white);
  box-shadow: 0 1px 3px rgba(14, 47, 56, 0.08);
}

.tool-panel__head {
  margin-bottom: 1.25rem;
}

.tool-panel__title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.65rem;
  margin-bottom: 0.45rem;
}

.tool-panel__title {
  margin: 0;
  font-size: 1.35rem;
  color: var(--ink);
}

.tool-panel__lead {
  margin: 0;
  max-width: 40rem;
  color: var(--muted);
  font-size: 0.98rem;
}

.tool-more {
  margin-top: 0.85rem;
  max-width: 36rem;
}

.tool-more summary {
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink-soft);
}

.tool-more summary:hover {
  color: var(--cell);
}

.tool-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1rem;
  margin: 0.8rem 0 0;
  padding: 0;
  list-style: none;
  max-width: 40rem;
}

.tool-steps li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.4;
}

.tool-steps__n {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.2rem;
  height: 1.2rem;
  border-radius: 999px;
  background: rgba(31, 107, 74, 0.12);
  color: var(--cell);
  font-size: 0.72rem;
  font-weight: 700;
  flex-shrink: 0;
}

.tool-more p {
  margin: 0.65rem 0 0;
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--muted);
}

.tool-more p code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.82em;
}

.group-demo {
  display: flex;
  align-items: stretch;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.group-demo-col {
  flex: 1;
  min-width: 0;
}

.group-demo-label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.group-demo-code {
  margin: 0;
  padding: 0.65rem 0.75rem;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--text);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow-x: auto;
  white-space: pre;
}

.group-demo-arrow {
  display: flex;
  align-items: center;
  padding-top: 1.1rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--muted);
  flex-shrink: 0;
}

.tool-card {
  padding: 1rem 0 0;
  border-top: 1px solid var(--line);
}

.tool-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 0.75rem;
  margin-bottom: 0.9rem;
}

.tool-card__title {
  margin: 0;
  font-size: 1rem;
  color: var(--ink);
}

.group-stats-badge {
  margin: 0;
  padding: 0.2rem 0.65rem;
  font-size: 0.78rem;
  font-weight: 650;
  color: var(--cell);
  background: rgba(31, 107, 74, 0.1);
  border: 1px solid rgba(31, 107, 74, 0.22);
  border-radius: 999px;
}

.group-stats-badge.group-stats--empty {
  color: var(--muted);
  background: rgba(14, 47, 56, 0.06);
  border-color: var(--line);
  font-weight: 500;
}

.group-workspace {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.75rem;
  align-items: stretch;
}

.group-panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.group-panel--result {
  background: linear-gradient(180deg, rgba(31, 107, 74, 0.06) 0%, var(--white) 42%);
  border-color: rgba(31, 107, 74, 0.22);
}

.group-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--line);
}

.group-panel--result .group-panel-head {
  border-bottom-color: rgba(31, 107, 74, 0.18);
}

.group-panel-title {
  margin: 0;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--ink);
}

.group-panel-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.group-textarea {
  display: block;
  width: 100%;
  flex: 1;
  min-height: 280px;
  margin: 0;
  padding: 0.75rem 0.9rem;
  border: none;
  border-radius: 0;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--text);
  resize: vertical;
  background: var(--white);
}

.group-textarea:focus {
  outline: none;
  box-shadow: inset 0 0 0 2px rgba(31, 107, 74, 0.22);
}

.group-textarea--result,
.group-textarea[readonly] {
  background: rgba(243, 240, 232, 0.55);
  cursor: default;
}

.group-textarea--result:focus {
  box-shadow: none;
}

.group-panel-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 0.85rem;
  padding: 0.65rem 0.75rem;
  border-top: 1px solid var(--line);
  background: rgba(243, 240, 232, 0.45);
}

.group-panel--result .group-panel-foot {
  border-top-color: rgba(31, 107, 74, 0.18);
  background: rgba(31, 107, 74, 0.05);
}

.group-panel-foot-hint {
  margin-left: auto;
  font-size: 0.78rem;
  color: var(--muted);
}

.group-setting-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
}

.group-setting-item--grow {
  flex: 1;
  flex-wrap: wrap;
}

.group-setting-label {
  flex-shrink: 0;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
}

.group-setting-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  user-select: none;
}

.group-setting-toggle-switch {
  position: relative;
  display: inline-flex;
  flex-shrink: 0;
}

.option-switch-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.option-switch-track {
  display: block;
  width: 34px;
  height: 18px;
  background: rgba(14, 47, 56, 0.2);
  border-radius: 999px;
  transition: background 0.2s ease;
}

.option-switch-track::after {
  content: "";
  display: block;
  width: 14px;
  height: 14px;
  margin: 2px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 2px rgba(14, 47, 56, 0.18);
  transition: transform 0.2s ease;
}

.option-switch-input:checked + .option-switch-track {
  background: var(--cell);
}

.option-switch-input:checked + .option-switch-track::after {
  transform: translateX(16px);
}

.group-setting-toggle:has(.option-switch-input:checked) {
  color: var(--cell);
}

.select-preview,
.input-text {
  min-height: 2rem;
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font: inherit;
  font-size: 0.82rem;
  color: var(--text);
  background: var(--white);
}

.select-preview:focus,
.input-text:focus {
  outline: none;
  border-color: var(--cell);
  box-shadow: 0 0 0 2px rgba(31, 107, 74, 0.15);
}

.input-text--sm {
  width: 5.5rem;
}

.group-flow {
  display: flex;
  align-items: center;
  justify-content: center;
}

.group-flow-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  color: var(--cell);
  background: rgba(31, 107, 74, 0.1);
  border: 1px solid rgba(31, 107, 74, 0.22);
  border-radius: 999px;
}

/* 加分隔符 / 拆分规则条 */
.insert-rulebar {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin: 0 0 0.9rem;
  padding: 0.75rem 0.9rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.insert-rulebar-main {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 0.9rem;
}

.insert-seg {
  display: inline-flex;
  padding: 2px;
  background: rgba(14, 47, 56, 0.06);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.insert-seg-btn {
  min-height: 1.9rem;
  padding: 0.25rem 0.75rem;
  font-size: 0.78rem;
  font-family: inherit;
  font-weight: 600;
  color: var(--muted);
  background: transparent;
  border: none;
  border-radius: 3px;
  cursor: pointer;
}

.insert-seg-btn:hover {
  color: var(--ink);
}

.insert-seg-btn--active {
  color: var(--cell);
  background: var(--white);
  box-shadow: 0 1px 2px rgba(14, 47, 56, 0.08);
}

.insert-pos {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.insert-pos-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
}

.insert-pos-input {
  width: 3.6rem;
  min-height: 2rem;
  padding: 0.25rem 0.35rem;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-weight: 600;
  text-align: center;
}

.insert-chars {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin-left: auto;
}

.insert-chars--start {
  margin-left: 0;
}

.insert-char-btn {
  min-width: 2.1rem;
  min-height: 2rem;
  padding: 0.25rem 0.6rem;
  font-size: 0.82rem;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-weight: 700;
  color: var(--text);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
}

.insert-char-btn:hover {
  border-color: rgba(31, 107, 74, 0.4);
  color: var(--cell);
}

.insert-char-btn--active {
  color: var(--cell);
  background: rgba(31, 107, 74, 0.1);
  border-color: var(--cell);
  box-shadow: 0 0 0 2px rgba(31, 107, 74, 0.12);
}

.insert-char-btn--custom {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
}

.insert-char-custom {
  width: 4.5rem;
  min-height: 2rem;
  padding: 0.25rem 0.5rem;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  text-align: center;
}

.insert-preview {
  margin: 0;
  padding-top: 0.65rem;
  border-top: 1px dashed var(--line);
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.5;
}

.insert-preview code {
  padding: 0.05rem 0.35rem;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.78rem;
  font-weight: 650;
  color: var(--text);
  background: rgba(14, 47, 56, 0.06);
  border-radius: 3px;
}

.tools-cta {
  margin-top: 3rem;
  padding: 2rem 0 0;
  border-top: 1px solid var(--line);
  text-align: center;
}

.tools-cta__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-brand);
  font-size: clamp(1.45rem, 3vw, 1.85rem);
  font-weight: 400;
  color: var(--ink);
}

.tools-cta__lead {
  margin: 0 0 1.15rem;
  color: var(--muted);
}

.need-more--tools {
  margin-top: 2.25rem;
  padding: 1.75rem 1.25rem;
  text-align: center;
  background: rgba(14, 47, 56, 0.04);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.need-more__title {
  margin: 0 0 0.45rem;
  font-family: var(--font-brand);
  font-size: clamp(1.25rem, 2.5vw, 1.55rem);
  font-weight: 400;
  color: var(--ink);
}

.need-more__lead {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.55;
}

.need-more__action {
  margin: 0.9rem 0 0;
  font-size: 1.02rem;
  color: var(--ink);
}

.need-more__hint {
  margin-left: 0.4rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.site-footer__contact {
  margin: 0.85rem 0 0;
}

.wechat-copy {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--cell);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  border-bottom: 1px dashed rgba(31, 107, 74, 0.45);
}

.wechat-copy:hover {
  color: var(--cell-bright, var(--cell));
}

/* 合并预览 */
.merge-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  margin-bottom: 0.9rem;
}

.merge-toolbar__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-left: auto;
}

.merge-dropzone {
  display: block;
  width: 100%;
  padding: 1.35rem 1.1rem;
  margin-bottom: 1rem;
  text-align: center;
  cursor: pointer;
  background: rgba(31, 107, 74, 0.04);
  border: 1.5px dashed rgba(31, 107, 74, 0.35);
  border-radius: var(--radius);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.merge-dropzone:hover,
.merge-dropzone:focus-visible,
.merge-dropzone--active {
  outline: none;
  background: rgba(31, 107, 74, 0.09);
  border-color: var(--cell);
}

.merge-dropzone__title {
  margin: 0 0 0.35rem;
  font-weight: 650;
  color: var(--ink);
}

.merge-dropzone__hint {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.merge-file-list {
  list-style: none;
  margin: 0.9rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  text-align: left;
}

.merge-file-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.45rem 0.65rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 0.9rem;
}

.merge-file-remove {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.15rem 0.35rem;
}

.merge-file-remove:hover {
  color: var(--ink);
}

.merge-preview-wrap {
  margin-bottom: 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  overflow: hidden;
}

.merge-preview-scroll {
  overflow: auto;
  max-height: min(52vh, 420px);
}

.merge-table {
  width: max-content;
  min-width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
  font-variant-numeric: tabular-nums;
}

.merge-table th,
.merge-table td {
  padding: 0.4rem 0.7rem;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid rgba(14, 47, 56, 0.06);
  white-space: nowrap;
  max-width: 16rem;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: left;
}

.merge-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: rgba(31, 107, 74, 0.1);
  color: var(--ink);
  font-weight: 650;
}

.merge-table__prefix td {
  background: rgba(14, 47, 56, 0.03);
  color: var(--muted);
}

.merge-preview-msg {
  margin: 0 0 0.85rem;
  font-size: 0.88rem;
  color: var(--muted);
}

.merge-preview-msg--error {
  color: #8a3b2a;
}

.merge-upsell {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.merge-upsell a {
  font-weight: 600;
  text-decoration: none;
}

.merge-upsell a:hover {
  text-decoration: underline;
}

@media (max-width: 760px) {
  .merge-toolbar__actions {
    margin-left: 0;
    width: 100%;
  }

  .group-workspace {
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }

  .group-flow-badge {
    transform: rotate(90deg);
  }

  .group-demo {
    flex-direction: column;
    gap: 0.5rem;
  }

  .group-demo-arrow {
    padding-top: 0;
    justify-content: center;
    transform: rotate(90deg);
  }

  .group-panel-foot-hint {
    margin-left: 0;
    width: 100%;
  }

  .group-setting-toggle {
    margin-left: 0;
  }

  .insert-chars {
    margin-left: 0;
    width: 100%;
  }
}

@media (max-width: 560px) {
  .tools-page .site-nav a[href="/tools/"] {
    display: none;
  }
}