/* ============================================================
   KRONOS ZHOU · 建立知识库页面样式
   路径：knowledgelibrary/library-builder/library-builder.css
   ------------------------------------------------------------
   类名统一 kb- 前缀，避免和其它页面互相污染；
   配色全部复用 main-page.css 里已定义的 CSS 变量。
   预览区的卡片故意复用 knowledge-library.css 的 know-item-*
   （也就是知识库列表页同一套 class），所以"预览 = 真页面"。
   ============================================================ */

/* ============================================================
   1. 页面容器
   ============================================================ */
.kb-wrap {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.6rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

/* ============================================================
   2. 审核状态横幅
   ============================================================ */
.kb-review {
  border-radius: var(--radius-md);
  padding: 1.2rem 1.4rem;
  border: 1px solid var(--border-medium);
  background: var(--bg-panel);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  line-height: 1.7;
}

.kb-review-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

.kb-review-body {
  color: var(--text-secondary);
  font-size: 0.92rem;
  white-space: pre-wrap;
}

.kb-review-note {
  background: rgba(0, 0, 0, 0.25);
  border-left: 3px solid var(--border-medium);
  border-radius: 0.6rem;
  padding: 0.7rem 0.9rem;
  color: var(--text-primary);
  font-size: 0.92rem;
  white-space: pre-wrap;
}

.kb-review-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.3rem;
}

.kb-review.is-rejected {
  border-color: rgba(239, 68, 68, 0.5);
  background: linear-gradient(180deg, var(--danger-soft), var(--bg-panel));
}
.kb-review.is-rejected .kb-review-head { color: #ffb4b4; }
.kb-review.is-rejected .kb-review-note { border-left-color: var(--danger); }

.kb-review.is-pending {
  border-color: rgba(245, 158, 11, 0.5);
  background: linear-gradient(180deg, var(--warn-soft), var(--bg-panel));
}
.kb-review.is-pending .kb-review-head { color: #ffd79a; }

.kb-review.is-approved {
  border-color: rgba(74, 222, 128, 0.5);
  background: linear-gradient(180deg, var(--success-soft), var(--bg-panel));
}
.kb-review.is-approved .kb-review-head { color: #b6f5cd; }

/* ============================================================
   3. 访客提示
   ============================================================ */
.kb-guest {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.3rem;
  border-radius: var(--radius-md);
  border: 1px dashed var(--border-medium);
  background: var(--bg-block);
}

.kb-guest-icon { font-size: 1.4rem; }

.kb-guest-text {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  flex: 1;
  min-width: 0;
}

.kb-guest-text b { color: var(--text-primary); font-size: 0.95rem; }

/* ============================================================
   4. 进度
   ============================================================ */
.kb-progress {
  padding: 1.2rem 1.4rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  background: var(--bg-panel);
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.kb-progress-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}

.kb-progress-label { color: var(--text-secondary); font-size: 0.92rem; letter-spacing: 0.05em; }
.kb-progress-num { color: var(--accent); font-weight: 700; font-size: 1.15rem; }

.kb-progress-bar {
  height: 0.6rem;
  border-radius: 999px;
  background: var(--bg-block);
  overflow: hidden;
}

.kb-progress-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), #7ea8ff);
  box-shadow: 0 0 12px var(--accent-glow);
  transition: width var(--transition);
}

.kb-progress-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.kb-progress-step {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  background: var(--bg-block);
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  padding: 0.22rem 0.7rem;
}

.kb-progress-step::before { content: '○'; font-size: 0.7rem; }
.kb-progress-step.done { color: var(--success); border-color: rgba(74, 222, 128, 0.35); }
.kb-progress-step.done::before { content: '●'; }

.kb-progress-note { font-size: 0.8rem; color: var(--text-muted); }
.kb-progress-note.is-error { color: #ffb4b4; }

/* ============================================================
   5. 步骤切换
   ============================================================ */
.kb-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.4rem;
  border-radius: var(--radius-sm);
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
}

.kb-step-tab {
  flex: 1 1 auto;
  min-width: 8.5rem;
  padding: 0.6rem 0.9rem;
  border: 1px solid transparent;
  border-radius: 0.8rem;
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
}

.kb-step-tab:hover { background: var(--bg-block-hover); color: var(--text-primary); }

.kb-step-tab.active {
  background: var(--accent-soft);
  border-color: rgba(91, 141, 239, 0.45);
  color: #cfe0ff;
  font-weight: 600;
}

.kb-step-tab.has-error { border-color: rgba(239, 68, 68, 0.45); }

/* ============================================================
   6. 面板 / 卡片 / 表单
   ============================================================ */
.kb-panel { display: flex; flex-direction: column; gap: 1.2rem; }

.kb-card {
  padding: 1.4rem 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  background: var(--bg-panel);
  box-shadow: var(--shadow-block);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.kb-card-title {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.6rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

.kb-card-title small {
  flex: 1 1 100%;
  font-weight: 400;
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.kb-items-count {
  margin-left: auto;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
}

.kb-grid { display: grid; gap: 0.9rem 1.1rem; }
.kb-grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.kb-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.kb-field { display: flex; flex-direction: column; gap: 0.35rem; min-width: 0; }

.kb-field-label {
  font-size: 0.86rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.kb-req { color: var(--danger); font-style: normal; }

.kb-input,
.kb-textarea {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border-radius: 0.7rem;
  border: 1px solid var(--border-medium);
  background: var(--bg-block);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.92rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.kb-textarea { resize: vertical; line-height: 1.6; }

.kb-input:focus,
.kb-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.kb-input::placeholder,
.kb-textarea::placeholder { color: var(--text-muted); }

.kb-input-sm { padding: 0.45rem 0.65rem; font-size: 0.86rem; }

.kb-input.is-error,
.kb-textarea.is-error { border-color: var(--danger); }

.kb-select-inline {
  padding: 0.4rem 0.6rem;
  border-radius: 0.6rem;
  border: 1px solid var(--border-medium);
  background: var(--bg-block);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.85rem;
}

.kb-hint { font-size: 0.78rem; color: var(--text-muted); line-height: 1.5; }
.kb-hint code {
  background: rgba(255, 255, 255, 0.07);
  padding: 0.05rem 0.3rem;
  border-radius: 0.3rem;
}

.kb-error {
  font-size: 0.78rem;
  color: #ff9c9c;
  line-height: 1.5;
  min-height: 0;
}

.kb-error:empty { display: none; }

.kb-check {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.6;
  cursor: pointer;
}

.kb-check input { margin-top: 0.25rem; accent-color: var(--accent); }

/* ============================================================
   7. 按钮
   ============================================================ */
.kb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.62rem 1.1rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border-medium);
  background: var(--bg-block);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.kb-btn:hover { background: var(--bg-block-hover); border-color: var(--accent); }
.kb-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.kb-btn-sm { padding: 0.42rem 0.8rem; font-size: 0.84rem; border-radius: 0.6rem; }

.kb-btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #0b1220;
  font-weight: 600;
}

.kb-btn-primary:hover { background: #6f9bf5; border-color: #6f9bf5; }

.kb-btn-ghost { background: transparent; }
.kb-btn-danger { background: transparent; border-color: rgba(239, 68, 68, 0.5); color: #ffb4b4; }
.kb-btn-danger:hover { background: var(--danger-soft); border-color: var(--danger); }

.kb-feedback { font-size: 0.84rem; color: var(--text-secondary); align-self: center; }
.kb-feedback.is-ok { color: var(--success); }
.kb-feedback.is-error { color: #ff9c9c; }
.kb-feedback.is-warn { color: var(--warn); }

/* ============================================================
   8. 结构编辑（parts / categories / levels）
   ============================================================ */
.kb-parts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.9rem; }

.kb-part {
  padding: 0.9rem;
  border-radius: 0.9rem;
  border: 1px solid var(--border-soft);
  background: var(--bg-block);
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.kb-part-id { font-size: 0.74rem; color: var(--text-muted); font-family: ui-monospace, monospace; }

.kb-cats { display: grid; grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr)); gap: 0.9rem; }

.kb-cat-block {
  padding: 0.9rem;
  border-radius: 0.9rem;
  border: 1px solid var(--border-soft);
  background: var(--bg-block);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.kb-cat-block-title { font-size: 0.9rem; color: var(--text-primary); font-weight: 600; }

.kb-chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.kb-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.45rem 0.25rem 0.7rem;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-soft);
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.kb-chip-x {
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.9rem;
  line-height: 1;
  padding: 0 0.15rem;
}

.kb-chip-x:hover { color: var(--danger); }
.kb-chip.is-level { border-color: rgba(91, 141, 239, 0.35); color: #cfe0ff; }

.kb-inline-add { display: flex; gap: 0.5rem; align-items: center; }
.kb-inline-add .kb-input { max-width: 16rem; }

.kb-levels { display: flex; flex-wrap: wrap; gap: 0.45rem; }

/* ============================================================
   9. 条目列表 + 编辑器
   ============================================================ */
.kb-items-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.kb-items-toolbar .kb-input { max-width: 15rem; }
.kb-items-toolbar .kb-btn { margin-left: 0; }

.kb-items-body {
  display: grid;
  grid-template-columns: minmax(14rem, 20rem) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.kb-items-list {
  max-height: 32rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding-right: 0.2rem;
  border-right: 1px solid var(--border-soft);
}

.kb-item-row {
  text-align: left;
  padding: 0.55rem 0.7rem;
  border-radius: 0.7rem;
  border: 1px solid var(--border-soft);
  background: var(--bg-block);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.86rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  transition: all var(--transition);
}

.kb-item-row:hover { background: var(--bg-block-hover); color: var(--text-primary); }
.kb-item-row.active { border-color: var(--accent); background: var(--accent-soft); color: #cfe0ff; }
.kb-item-row.bad { border-color: rgba(239, 68, 68, 0.55); }

.kb-item-row-sub { font-size: 0.74rem; color: var(--text-muted); }

.kb-items-empty {
  padding: 1.2rem;
  border-radius: 0.8rem;
  border: 1px dashed var(--border-medium);
  color: var(--text-muted);
  font-size: 0.86rem;
  text-align: center;
}

.kb-item-editor {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  min-width: 0;
}

.kb-editor-empty {
  padding: 2rem 1rem;
  border-radius: 0.9rem;
  border: 1px dashed var(--border-medium);
  color: var(--text-muted);
  text-align: center;
  font-size: 0.9rem;
}

.kb-editor-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.kb-editor-head b { color: var(--text-primary); }

.kb-editor-section {
  padding: 0.9rem;
  border-radius: 0.9rem;
  border: 1px solid var(--border-soft);
  background: var(--bg-block);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.kb-editor-section-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

.kb-level-picker { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.kb-level-opt {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.28rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--border-medium);
  background: var(--bg-elevated);
  font-size: 0.82rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.kb-level-opt input { accent-color: var(--accent); }
.kb-level-opt.on { border-color: var(--accent); color: #cfe0ff; background: var(--accent-soft); }

/* 结构化数据（meta）与列表行（points / reactions / prep） */
.kb-rows { display: flex; flex-direction: column; gap: 0.45rem; }

.kb-row { display: flex; gap: 0.45rem; align-items: center; }
.kb-row .kb-input { flex: 1; }
.kb-row .kb-input.kb-row-key { max-width: 9rem; flex: 0 0 9rem; }

.kb-row-x {
  border: 1px solid var(--border-soft);
  background: var(--bg-elevated);
  color: var(--text-muted);
  border-radius: 0.5rem;
  width: 2rem;
  height: 2rem;
  cursor: pointer;
  flex: 0 0 auto;
}

.kb-row-x:hover { color: var(--danger); border-color: var(--danger); }

/* ============================================================
   10. 预览
   ============================================================ */
.kb-preview-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.kb-preview-toolbar .kb-input { max-width: 20rem; }

.kb-preview-filters { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.kb-preview-filters .know-chip { cursor: pointer; }

.kb-preview-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.kb-preview-badge {
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: var(--bg-block);
  border: 1px solid var(--border-soft);
}

.kb-preview-cards {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  max-height: 40rem;
  overflow-y: auto;
}

/* 预览区的卡片要完整展开：列表页那套 know-item-body 是给"摘要"用的
   （max-height 640px + overflow hidden），详情会长得多，所以这里放开高度 */
.kb-preview-cards .know-item.expanded .know-item-body {
  max-height: none;
  overflow: visible;
}

.kb-preview-empty {
  padding: 1.4rem;
  border-radius: 0.9rem;
  border: 1px dashed var(--border-medium);
  color: var(--text-muted);
  text-align: center;
}

/* 预览详情（点卡片展开） */
.kb-detail {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  padding: 0.6rem 0 0.2rem;
}

.kb-detail-name { font-size: 1rem; color: var(--text-primary); }
.kb-detail-name small { color: var(--text-muted); margin-left: 0.5rem; font-size: 0.82rem; }

.kb-detail-badges { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.kb-detail-desc { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.75; }

.kb-detail-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: 0.35rem 0.9rem;
  font-size: 0.85rem;
}

.kb-detail-meta-row {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px dashed var(--border-soft);
  padding: 0.25rem 0;
}

.kb-detail-meta-key { color: var(--text-muted); flex: 0 0 6.5rem; }
.kb-detail-meta-val { color: var(--text-primary); word-break: break-word; }

.kb-detail-block-title {
  font-size: 0.84rem;
  color: var(--text-secondary);
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.kb-detail-block { display: block; margin-top: 0.2rem; }

.kb-detail-list { margin: 0; padding-left: 1.15rem; display: flex; flex-direction: column; gap: 0.28rem; }
.kb-detail-list li { color: var(--text-secondary); font-size: 0.87rem; line-height: 1.7; }
.kb-detail-list.is-mono li { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.85rem; }

/* ============================================================
   11. JSON 与提交
   ============================================================ */
.kb-json {
  max-height: 26rem;
  overflow: auto;
  margin: 0;
  padding: 1rem;
  border-radius: 0.9rem;
  background: #0b0e14;
  border: 1px solid var(--border-soft);
  color: #c9d6ea;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.8rem;
  line-height: 1.65;
  white-space: pre;
}

.kb-submit-row { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; }

.kb-validate {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.86rem;
  line-height: 1.6;
}

.kb-validate-ok { color: var(--success); }
.kb-validate-bad { color: #ff9c9c; }
.kb-validate ul { margin: 0.2rem 0 0; padding-left: 1.2rem; color: var(--text-secondary); }

/* ============================================================
   12. 提示条
   ============================================================ */
.kb-toast {
  position: fixed;
  left: 50%;
  bottom: 2rem;
  transform: translateX(-50%);
  padding: 0.7rem 1.2rem;
  border-radius: 0.8rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  font-size: 0.88rem;
  box-shadow: var(--shadow-panel);
  z-index: 200;
  max-width: min(90vw, 36rem);
  text-align: center;
}

.kb-toast.is-ok { border-color: rgba(74, 222, 128, 0.5); }
.kb-toast.is-error { border-color: rgba(239, 68, 68, 0.55); }
.kb-toast.is-warn { border-color: rgba(245, 158, 11, 0.5); }

/* ============================================================
   13. 窄屏
   ============================================================ */
@media (max-width: 1000px) {
  .kb-parts { grid-template-columns: 1fr; }
  .kb-items-body { grid-template-columns: 1fr; }
  .kb-items-list {
    max-height: 16rem;
    border-right: none;
    border-bottom: 1px solid var(--border-soft);
    padding-bottom: 0.6rem;
  }
}

@media (max-width: 760px) {
  .kb-wrap { padding: 0 1rem 3rem; }
  .kb-grid-2, .kb-grid-3 { grid-template-columns: 1fr; }
  .kb-card { padding: 1.1rem 1rem; }
  .kb-step-tab { min-width: 100%; }
  .kb-items-toolbar .kb-input { max-width: 100%; flex: 1 1 100%; }
  .kb-guest { flex-wrap: wrap; }
}