/* 知识中心：Harness 面板语言（与 #botsView、#runsView 一致）+ 右侧抽屉。
 * --hui-* 令牌、按钮、徽标、面板与输入框外观来自 app/harness-ui.css；覆盖 sliding-tabs 的规则全部限定在 #knowledgeView。 */
:is(#knowledgeView, #kbDrawer, #kbScrim) {
  --kb-hover: color-mix(in srgb, var(--hui-text) 3%, transparent);
  --kb-focus: var(--hui-focus-ring);
  --kb-mark: color-mix(in srgb, var(--hui-warn) 14%, transparent);
  --kb-switch-off: var(--hui-border-strong);
  --kb-ease: 220ms cubic-bezier(.16, 1, .3, 1);
}
html[data-theme="dark"] :is(#knowledgeView, #kbDrawer, #kbScrim) { --kb-switch-off: #3a3a42; }

#knowledgeView.page-view.active { background: var(--hui-surface); }
.kb-page { box-sizing: border-box; width: 100%; padding: 0 0 64px; font-size: 14px; line-height: 1.5; }

/* 页头 */
.kb-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px 24px; }
.kb-head-main { min-width: 0; }
.kb-head h1 { margin: 0; }
.kb-head-desc { margin: 4px 0 0; }
.kb-head .kb-btn[hidden] { display: none; }

/* 概览指标 */
.kb-metrics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 22px 0 22px; }
.kb-metric { box-sizing: border-box; min-width: 0; padding: 16px 18px; }
.kb-metric-label { display: block; color: var(--hui-muted); font-size: 12px; }
.kb-metric-value { display: flex; align-items: center; gap: 8px; min-width: 0; margin-top: 4px; overflow: hidden; color: var(--hui-text); font-size: 26px; font-weight: 600; line-height: 1.25; font-variant-numeric: tabular-nums; white-space: nowrap; text-overflow: ellipsis; }
.kb-metric-value.is-empty { color: var(--hui-tertiary); font-weight: 400; }
.kb-metric-sep { color: var(--hui-tertiary); font-weight: 400; }
.kb-metric-foot { display: block; min-height: 18px; margin-top: 2px; overflow: hidden; color: var(--hui-tertiary); font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.kb-metric-link { padding: 0 2px; margin: 0 -2px; border: 0; border-radius: 6px; background: none; color: inherit; font: inherit; cursor: pointer; transition: color 150ms ease; }
.kb-metric-link:hover { color: var(--hui-accent); }
.kb-metric-link:focus-visible { outline: 2px solid var(--kb-focus); outline-offset: 2px; }
.kb-dot { flex: none; display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--hui-tertiary); }
.kb-dot.ok { background: var(--hui-success); box-shadow: 0 0 0 4px color-mix(in srgb, var(--hui-success) 16%, transparent); }
.kb-dot.warn { background: var(--hui-warn); box-shadow: 0 0 0 4px color-mix(in srgb, var(--hui-warn) 16%, transparent); }
.kb-dot.err { background: var(--hui-error); box-shadow: 0 0 0 4px color-mix(in srgb, var(--hui-error) 16%, transparent); }
.kb-status-text { min-width: 0; overflow: hidden; text-overflow: ellipsis; }

/* 下划线标签：覆盖 sliding-tabs 的分段底色，指示层只保留 2px 强调色下划线 */
#knowledgeView .kb-tabs.sliding-tabs[data-sliding-tabs],
#knowledgeView .kb-tabs {
  display: flex !important;
  gap: 28px !important;
  height: auto !important;
  min-height: 0 !important;
  margin: 0 0 18px;
  padding: 0 !important;
  border: 0 !important;
  border-bottom: 1px solid var(--hui-border) !important;
  border-radius: 0 !important;
  background: transparent !important;
}
#knowledgeView .kb-tabs > button,
#knowledgeView .kb-tabs.sliding-tabs[data-sliding-tabs] > [data-sliding-tab] {
  flex: 0 0 auto;
  height: auto !important;
  min-height: 0 !important;
  padding: 4px 0 11px !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: none !important;
  color: var(--hui-muted) !important;
  font-size: 14px !important;
  font-weight: 400 !important;
  line-height: 22px !important;
  cursor: pointer;
}
#knowledgeView .kb-tabs > button:hover { color: var(--hui-text) !important; }
#knowledgeView .kb-tabs > button.active { color: var(--hui-text) !important; font-weight: 500 !important; }
#knowledgeView .kb-tabs > button:focus-visible { outline: 0; box-shadow: inset 0 0 0 2px var(--kb-focus) !important; border-radius: 6px !important; }
#knowledgeView .kb-tabs.sliding-tabs[data-sliding-tabs] > [data-sliding-indicator] {
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: inset 0 -2px 0 var(--hui-accent);
}
#knowledgeView .kb-tabs:not([data-sliding-tabs]) > button.active { box-shadow: inset 0 -2px 0 var(--hui-accent) !important; }
.kb-count { margin-left: 5px; color: var(--hui-tertiary); font-size: 12px; font-weight: 400; font-variant-numeric: tabular-nums; }

/* 面板 */
.kb-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 16px; align-items: start; }
.kb-panel { min-width: 0; overflow: hidden; }
.kb-panel-head { box-sizing: border-box; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 12px; min-height: 52px; padding: 10px 18px; border-bottom: 1px solid var(--hui-border); }
.kb-panel-head h3 { margin: 0; color: var(--hui-text); font-size: 14px; font-weight: 600; }
.kb-panel-meta { min-width: 0; color: var(--hui-tertiary); font-size: 12px; }
.kb-panel-head.kb-panel-search { padding: 12px 14px; }

/* 行 */
.kb-row { display: flex; align-items: center; gap: 16px; min-height: 54px; box-sizing: border-box; padding: 12px 0; border-bottom: 1px solid var(--hui-border-soft); }
.kb-panel .kb-row { padding: 12px 18px; }
.kb-panel .kb-row:last-child { border-bottom: 0; }
.kb-row-main { flex: 1; min-width: 0; }
.kb-row-title { overflow: hidden; color: var(--hui-text); text-overflow: ellipsis; white-space: nowrap; }
.kb-row-desc { margin-top: 1px; overflow: hidden; color: var(--hui-muted); font-size: 12.5px; text-overflow: ellipsis; white-space: nowrap; }
.kb-row-value { flex: none; max-width: 40%; overflow: hidden; color: var(--hui-muted); font-size: 13px; font-variant-numeric: tabular-nums; text-overflow: ellipsis; white-space: nowrap; }
.kb-row-icon { flex: none; display: grid; place-items: center; width: 28px; height: 28px; border-radius: 8px; background: color-mix(in srgb, var(--hui-text) 5%, var(--hui-surface)); color: var(--hui-muted); }
.kb-row-icon svg { width: 15px; height: 15px; }
.kb-row.kb-go { cursor: pointer; transition: background-color 150ms ease; }
.kb-row.kb-go:hover { background: var(--kb-hover); }
.kb-row.kb-go:focus-visible { outline: 2px solid var(--kb-focus); outline-offset: -2px; }
.kb-chev { flex: none; color: var(--hui-tertiary); }
.kb-hit .kb-row-title { font-weight: 500; }
.kb-hit .kb-row-desc { display: -webkit-box; white-space: normal; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.kb-hit cite { display: block; margin-top: 4px; overflow: hidden; color: var(--hui-tertiary); font: 12px var(--mono); font-style: normal; text-overflow: ellipsis; white-space: nowrap; }
.kb-off { color: var(--hui-tertiary); text-decoration: line-through; }

/* 来源占比条 */
.kb-share { flex: 0 1 120px; min-width: 40px; height: 6px; overflow: hidden; border-radius: 3px; background: var(--hui-accent-soft); }
.kb-share > i { display: block; height: 100%; border-radius: 3px; background: var(--hui-accent); }
.kb-source-num { width: 64px; text-align: right; }
.kb-panel .kb-row:has(.kb-share, .hui-badge) > .kb-row-main { min-width: 96px; }

.kb-cap { margin: 24px 0 4px; color: var(--hui-tertiary); font-size: 12px; }
.kb-panel .kb-cap { margin: 0; padding: 10px 18px; border-bottom: 1px solid var(--hui-border-soft); }
.kb-note { margin: 0 0 14px; padding: 10px 14px; border: 1px solid var(--hui-border); border-radius: 10px; background: var(--hui-surface); color: var(--hui-muted); font-size: 13px; }
.kb-note.kb-err { border-color: color-mix(in srgb, var(--hui-error) 23%, transparent); background: color-mix(in srgb, var(--hui-error) 6%, var(--hui-surface)); }
.kb-empty { padding: 40px 0; color: var(--hui-muted); font-size: 13px; text-align: center; }
.kb-panel .kb-empty { padding: 48px 18px; }
.kb-line-note { padding: 18px 0; border-bottom: 1px solid var(--hui-border-soft); color: var(--hui-muted); font-size: 13px; }
.kb-panel .kb-line-note { padding: 18px; }
.kb-panel .kb-line-note:last-child { border-bottom: 0; }
.kb-ok { color: var(--hui-success); }
.kb-warn { color: var(--hui-warn); }
.kb-err { color: var(--hui-error); }
:is(#knowledgeView, #kbDrawer) .mono { font-family: var(--mono); font-size: 12.5px; }

/* 面板底部操作区 */
.kb-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 8px; padding: 12px 18px; border-top: 1px solid var(--hui-border); background: color-mix(in srgb, var(--hui-canvas) 60%, var(--hui-surface)); }
.kb-hint { min-width: 0; margin-right: auto; overflow: hidden; color: var(--hui-tertiary); font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }

/* 输入 */
:is(#knowledgeView, #kbDrawer) .kb-input {
  box-sizing: border-box;
  width: min(300px, 100%);
  max-width: 100%;
  height: 36px;
  padding: 0 10px;
  font-size: 13px;
  outline: none;
}
:is(#knowledgeView, #kbDrawer) .kb-input.mono { font-size: 12.5px; }
:is(#knowledgeView, #kbDrawer) .kb-input:disabled { opacity: .6; cursor: not-allowed; }
:is(#knowledgeView, #kbDrawer) textarea.kb-input { height: 260px; padding: 10px; font: 12.5px/1.7 var(--mono); resize: vertical; }
#knowledgeView .kb-panel .kb-row.kb-stack > .kb-row-main { flex: 0 0 112px; }
#knowledgeView .kb-panel .kb-row.kb-stack .kb-input { flex: 1 1 auto; width: auto; min-width: 0; }

/* 开关 */
.kb-switch { position: relative; flex: none; width: 34px; height: 20px; padding: 0; border: 0; border-radius: 10px; background: var(--kb-switch-off); cursor: pointer; transition: background-color 150ms ease; }
.kb-switch::after { content: ""; position: absolute; top: 3px; left: 3px; width: 14px; height: 14px; border-radius: 50%; background: #fff; box-shadow: 0 1px 2px #00000033; transition: transform 150ms ease; }
.kb-switch[aria-checked="true"] { background: var(--hui-accent); }
.kb-switch[aria-checked="true"]::after { transform: translateX(14px); }
.kb-switch:disabled { opacity: .45; cursor: not-allowed; }
.kb-switch[aria-busy="true"] { opacity: .6; cursor: progress; }
.kb-switch:focus-visible { outline: 2px solid var(--kb-focus); outline-offset: 2px; }

/* 按钮：外观来自 app/harness-ui.css；这里只保留尺寸与 quiet 删除按钮 */
.kb-btn { box-sizing: border-box; flex: none; display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 34px; padding: 0 16px; font: 500 13px/1 var(--hui-sans); text-decoration: none; white-space: nowrap; cursor: pointer; }
.kb-btn.small { height: 28px; padding: 0 12px; font-size: 12.5px; }
:is(#knowledgeView, #kbDrawer) .kb-btn.quiet { margin-right: auto; border-color: transparent; background: none; color: var(--hui-error); }
:is(#knowledgeView, #kbDrawer) .kb-btn.quiet:hover:not(:disabled) { background: color-mix(in srgb, var(--hui-error) 7%, transparent); }

/* 分段控件：带轨道，复用 sliding-tabs 指示层作为选中底色 */
#knowledgeView .kb-seg,
#knowledgeView .kb-seg.sliding-tabs[data-sliding-tabs] {
  display: inline-flex !important;
  gap: 2px !important;
  height: auto !important;
  min-height: 0 !important;
  padding: 2px !important;
  border: 1px solid var(--hui-border) !important;
  border-radius: 8px !important;
  background: var(--hui-canvas) !important;
}
#knowledgeView .kb-seg > button,
#knowledgeView .kb-seg.sliding-tabs[data-sliding-tabs] > [data-sliding-tab] {
  flex: 0 0 auto;
  height: 26px !important;
  min-height: 0 !important;
  padding: 0 10px !important;
  border: 0 !important;
  border-radius: 6px !important;
  background: none !important;
  color: var(--hui-muted) !important;
  font-size: 12.5px !important;
  font-weight: 400 !important;
  line-height: 26px !important;
  cursor: pointer;
}
#knowledgeView .kb-seg > button.active { color: var(--hui-text) !important; }
#knowledgeView .kb-seg > button:disabled { cursor: not-allowed; }
#knowledgeView .kb-seg > button:focus-visible { outline: 2px solid var(--kb-focus); outline-offset: -2px; }
#knowledgeView .kb-seg:not([data-sliding-tabs]) > button.active { background: var(--hui-surface) !important; box-shadow: var(--hui-ind-shadow); }
#knowledgeView .kb-seg.sliding-tabs[data-sliding-tabs] > [data-sliding-indicator] { border: 0; border-radius: 6px; background: var(--hui-surface); box-shadow: var(--hui-ind-shadow); }

/* 检索框 */
.kb-search { box-sizing: border-box; display: flex; flex: 1; align-items: center; gap: 10px; min-width: 0; height: 44px; padding: 0 14px; border: 1px solid var(--hui-border-strong); border-radius: 10px; background: var(--hui-surface); transition: border-color 150ms ease, box-shadow 150ms ease; }
.kb-search:focus-within { border-color: var(--hui-accent); box-shadow: 0 0 0 3px var(--hui-accent-soft); }
.kb-search > svg { flex: none; color: var(--hui-tertiary); }
#knowledgeView .kb-search input,
#knowledgeView .kb-search select { height: 100%; padding: 0; border: 0; border-radius: 0; background: none; box-shadow: none; outline: none; }
#knowledgeView .kb-search input { flex: 1; min-width: 0; color: var(--hui-text); font-size: 14px; }
#knowledgeView .kb-search input::-webkit-search-cancel-button { display: none; }
#knowledgeView .kb-search select { flex: none; max-width: min(40%, 180px); text-overflow: ellipsis; color: var(--hui-muted); font-size: 13px; cursor: pointer; }
#knowledgeView .kb-search :disabled { cursor: not-allowed; }

/* 抽屉 */
.kb-scrim { position: fixed; inset: 0; z-index: 130; background: #00000000; pointer-events: none; transition: background-color var(--kb-ease); }
.kb-scrim.open { background: #00000014; pointer-events: auto; }
html[data-theme="dark"] .kb-scrim.open { background: #00000059; }
.kb-drawer { position: fixed; top: 0; right: 0; bottom: 0; z-index: 131; display: flex; flex-direction: column; width: min(520px, 94vw); border-left: 1px solid var(--hui-border); background: var(--hui-surface); color: var(--hui-text); font: 14px/1.5 var(--hui-sans); box-shadow: -12px 0 32px #0000000d; transform: translateX(100%); visibility: hidden; transition: transform var(--kb-ease), visibility 0s linear 220ms; }
.kb-drawer.open { transform: none; visibility: visible; transition: transform var(--kb-ease), visibility 0s; }
.kb-drawer-head { display: flex; align-items: flex-start; gap: 12px; padding: 20px 24px 16px; border-bottom: 1px solid var(--hui-border-soft); }
.kb-drawer-heading { flex: 1; min-width: 0; }
.kb-drawer h2 { margin: 0; overflow-wrap: anywhere; color: var(--hui-text); font-size: 16px; font-weight: 600; }
.kb-drawer-sub { margin-top: 2px; overflow-wrap: anywhere; color: var(--hui-muted); font-size: 12.5px; }
.kb-drawer-sub a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
.kb-drawer-sub a:hover { color: var(--hui-accent); }
.kb-drawer-close { flex: none; width: 28px; height: 28px; padding: 0; border: 0; border-radius: 6px; background: none; color: var(--hui-muted); cursor: pointer; }
.kb-drawer-close:hover { background: var(--kb-hover); color: var(--hui-text); }
.kb-drawer-close:focus-visible { outline: 2px solid var(--kb-focus); outline-offset: 0; }
.kb-drawer-body { flex: 1; min-height: 0; padding: 0 24px 24px; overflow: auto; }
.kb-drawer-body > .kb-cap:first-child { margin-top: 16px; }
.kb-drawer-body .kb-cap { color: var(--hui-muted); font-weight: 500; }
.kb-drawer-foot { display: flex; align-items: center; justify-content: flex-end; gap: 8px; padding: 14px 24px; border-top: 1px solid var(--hui-border); }
.kb-drawer-foot[hidden] { display: none; }
.kb-foot-note { min-width: 0; margin-right: auto; overflow: hidden; color: var(--hui-muted); font-size: 13px; text-overflow: ellipsis; white-space: nowrap; }
.kb-foot-note code { font: 12px var(--mono); }
.kb-alert { margin-top: 16px; padding: 10px 12px; border: 1px solid color-mix(in srgb, var(--hui-error) 23%, transparent); border-radius: 8px; background: color-mix(in srgb, var(--hui-error) 6%, transparent); color: var(--hui-error); font-size: 13px; overflow-wrap: anywhere; }
.kb-lead { margin: 16px 0 0; color: var(--hui-muted); font-size: 13px; }
.kb-field { margin-top: 16px; }
.kb-field > label { display: block; margin-bottom: 6px; color: var(--hui-secondary); font-size: 12.5px; font-weight: 500; }
#kbDrawer .kb-field .kb-input { width: 100%; }
.kb-field-pair { display: flex; gap: 8px; }
#kbDrawer .kb-field-pair select.kb-input { flex: 0 0 40%; width: 40%; }
#kbDrawer .kb-field-pair input.kb-input { flex: 1; min-width: 0; }
.kb-pre { margin: 0; padding: 14px; border: 1px solid var(--hui-border-soft); border-radius: 10px; background: var(--hui-canvas); color: var(--hui-text); font: 12.5px/1.7 var(--mono); white-space: pre-wrap; overflow-wrap: anywhere; }
.kb-doc { margin: 0 -24px; padding-top: 8px; }
.kb-doc > div { display: flex; gap: 14px; padding: 0 24px; font: 12.5px/1.8 var(--mono); }
.kb-doc > div > span { flex: none; width: 32px; color: var(--hui-tertiary); text-align: right; user-select: none; }
.kb-doc > div > code { min-width: 0; color: var(--hui-text); font: inherit; white-space: pre-wrap; overflow-wrap: anywhere; }
.kb-doc > div.hl { background: var(--kb-mark); box-shadow: inset 2px 0 0 var(--hui-warn); }

@media (max-width: 1080px) {
  .kb-grid { grid-template-columns: minmax(0, 1fr); }
  .kb-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .kb-page { padding-bottom: 56px; }
  .kb-head { flex-wrap: wrap; align-items: flex-start; }
  .kb-head h1 { font-size: 22px; }
  .kb-metrics { grid-template-columns: minmax(0, 1fr); margin: 18px 0 22px; }
  #knowledgeView .kb-tabs { gap: 20px !important; }
  .kb-row.kb-stack { flex-direction: column; align-items: stretch; gap: 8px; }
  #knowledgeView .kb-panel .kb-row.kb-stack > .kb-row-main { flex: none; }
  #knowledgeView .kb-panel .kb-row.kb-stack .kb-input { flex: none; width: 100%; }
  .kb-panel .kb-row, .kb-panel-head, .kb-foot, .kb-panel .kb-cap { padding-left: 14px; padding-right: 14px; }
  .kb-share { display: none; }
  .kb-drawer-head { padding: 16px 20px 12px; }
  .kb-drawer-body { padding: 0 20px 20px; }
  .kb-drawer-foot { flex-wrap: wrap; padding: 12px 20px; }
  .kb-doc { margin: 0 -20px; }
  .kb-doc > div { padding: 0 20px; }
}

@media (prefers-reduced-motion: reduce) {
  :is(#knowledgeView, #kbDrawer, #kbScrim),
  :is(#knowledgeView, #kbDrawer, #kbScrim) *,
  :is(#knowledgeView, #kbDrawer, #kbScrim) *::after { transition: none !important; }
}