:root {
  color-scheme: light;
  --bg: #f6f7f4;
  --surface: #ffffff;
  --surface-2: #eef4f1;
  --text: #1e2728;
  --muted: #687273;
  --line: #dce3df;
  --green: #2f7d55;
  --green-dark: #18563a;
  --amber: #b26a00;
  --blue: #1f6f8b;
  --danger: #a33b2f;
  --shadow: 0 12px 32px rgba(36, 48, 50, .12);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  letter-spacing: 0;
}

button,
input {
  font: inherit;
}

.app-page {
  min-height: 100vh;
}

.app-shell {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 14px;
}

.app-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 4px 2px 12px;
}

.app-header h1 {
  margin: 0;
  font-size: 22px;
  line-height: 1.2;
}

.generated {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.toolbar {
  display: grid;
  gap: 10px;
  margin-bottom: 12px;
}

.search-box {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 6px 10px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.search-box span {
  color: var(--muted);
  font-size: 13px;
}

.search-box input {
  width: 100%;
  border: 0;
  outline: 0;
  color: var(--text);
  background: transparent;
}

.filters {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.filter-btn {
  flex: 0 0 auto;
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  padding: 0 12px;
}

.filter-btn.active {
  border-color: var(--green);
  background: var(--green);
  color: #fff;
}

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

.kb-column {
  min-width: 0;
}

.column-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 4px 2px 8px;
}

.column-head h2 {
  margin: 0;
  font-size: 16px;
  line-height: 1.25;
}

.count {
  color: var(--muted);
  font-size: 12px;
}

.result-list {
  display: grid;
  gap: 8px;
}

.result-item {
  width: 100%;
  min-height: 142px;
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 12px;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: none;
}

.result-item h3 {
  margin: 0;
  font-size: 15px;
  line-height: 1.35;
}

.meta-row,
.action-row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  max-width: 100%;
  padding: 0 8px;
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--green-dark);
  font-size: 12px;
}

.excerpt {
  margin: 0;
  color: #3d484a;
  font-size: 13px;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.text-btn,
.icon-btn,
.primary-link {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0 10px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
}

.icon-btn.primary,
.primary-link {
  border-color: var(--green);
  background: var(--green);
  color: #fff;
}

.icon {
  font-size: 15px;
  line-height: 1;
}

.empty {
  padding: 20px 4px;
  color: var(--muted);
  font-size: 14px;
}

.detail-panel {
  margin-top: 12px;
  padding: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.detail-panel h2 {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.35;
}

.detail-body {
  color: #263234;
  font-size: 14px;
  line-height: 1.65;
}

.detail-body p {
  margin: 0 0 10px;
}

.detail-body ul,
.detail-body ol {
  margin: 0 0 10px;
  padding-left: 22px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%) translateY(24px);
  opacity: 0;
  pointer-events: none;
  min-width: 118px;
  max-width: calc(100vw - 32px);
  padding: 9px 12px;
  border-radius: 8px;
  background: #1f2728;
  color: #fff;
  text-align: center;
  font-size: 13px;
  transition: opacity .16s ease, transform .16s ease;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.customer-page {
  min-height: 100vh;
  background: #fbfcfb;
}

.answer-page {
  width: min(760px, 100%);
  margin: 0 auto;
  padding: 22px 16px 36px;
}

.answer-article {
  padding: 0;
}

.answer-type {
  margin: 0 0 8px;
  color: var(--green);
  font-size: 13px;
  font-weight: 700;
}

.answer-article h1 {
  margin: 0 0 12px;
  font-size: 24px;
  line-height: 1.28;
}

.summary {
  margin: 0 0 18px;
  padding-left: 12px;
  border-left: 4px solid var(--green);
  color: #334044;
  font-size: 16px;
  line-height: 1.65;
}

.answer-section {
  margin-top: 18px;
  color: #242e30;
  font-size: 16px;
  line-height: 1.78;
}

.answer-section.compact {
  padding: 12px 14px;
  background: var(--surface-2);
  border-radius: 8px;
}

.answer-section h2 {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.35;
}

.answer-section p,
.answer-section blockquote {
  margin: 0 0 12px;
}

.answer-section blockquote {
  padding: 10px 12px;
  border-left: 4px solid var(--blue);
  background: #eef7fa;
  color: #2f4045;
}

.answer-section ul,
.answer-section ol {
  margin: 0 0 12px;
  padding-left: 24px;
}

.answer-section li {
  margin: 6px 0;
}

.video-block {
  margin: 20px 0 0;
}

.video-block video {
  width: 100%;
  display: block;
  border-radius: 8px;
  background: #111;
}

.video-block figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

.answer-footer {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 28px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 620px) {
  .app-shell {
    padding: 10px;
  }

  .app-header h1 {
    font-size: 20px;
  }

  .kb-columns {
    gap: 10px;
  }

  .result-item {
    min-height: 154px;
    padding: 10px;
  }

  .text-btn,
  .icon-btn {
    flex: 1 1 64px;
    padding: 0 8px;
  }

  .answer-article h1 {
    font-size: 22px;
  }
}

@media (max-width: 420px) {
  .kb-columns {
    grid-template-columns: 1fr;
  }
}

/* 话术库新版分类 tab 与紧凑卡片 */
.filters {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  overflow: visible;
  padding: 0;
  border-bottom: 2px solid var(--line);
}

.filter-btn {
  flex: initial;
  min-width: 0;
  min-height: 34px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  padding: 0 4px;
  font-size: 13px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
}

.filter-btn.active {
  border-color: var(--green);
  background: transparent;
  color: var(--green);
}

.kb-columns {
  display: block;
}

.single-column {
  width: 100%;
}

.result-item .action-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.result-item .icon-btn,
.result-item .text-btn {
  width: 100%;
  min-height: 34px;
  padding: 0 8px;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
}

.result-item .icon {
  font-size: 12px;
}

@media (max-width: 720px) {
  .app-shell {
    padding: 8px;
  }

  .app-header h1 {
    font-size: 17px;
  }

  .search-box {
    min-height: 34px;
  }

  .search-box span,
  .search-box input {
    font-size: 12px;
  }

  .filter-btn {
    min-height: 32px;
    font-size: 12px;
  }

  .result-item {
    min-height: 0;
    padding: 9px;
    gap: 6px;
  }

  .result-item h3 {
    font-size: 13px;
  }

  .excerpt {
    font-size: 12px;
    line-height: 1.4;
    -webkit-line-clamp: 2;
  }

  .result-item .action-row {
    gap: 6px;
  }

  .result-item .icon-btn,
  .result-item .text-btn {
    min-height: 32px;
    padding: 0 6px;
    font-size: 12px;
  }
}