#ai-bailian {
  --ab-accent: #2f6fed;
  --ab-accent-soft: rgba(47, 111, 237, 0.1);
  --ab-radius: 12px;
  --ab-border: var(--border, #dfe2e5);
  --ab-text: var(--content-first, #343a40);
  --ab-muted: var(--content-second, #adb5bd);
  --ab-panel: var(--theme-first, #ffffff);
  --ab-panel-soft: var(--theme-second, #f8f9fa);
  color: var(--ab-text);
  margin: 0.5rem 0 1.5rem;
}

#ai-bailian .ab-lead {
  margin: 0 0 1.1rem;
  color: var(--ab-muted);
  font-size: 14px;
  line-height: 1.7;
}

#ai-bailian .ab-block {
  margin: 0 0 1.6rem;
}

#ai-bailian .ab-block > h2 {
  font-size: 17px;
  margin: 0 0 0.7rem;
  padding-left: 10px;
  border-left: 3px solid var(--ab-accent);
  line-height: 1.3;
}

#ai-bailian .ab-block > p {
  margin: 0 0 0.7rem;
  line-height: 1.75;
  font-size: 14.5px;
}

/* 定义卡：给 AI 引擎最容易被抽取的实体定义 */
#ai-bailian .ab-def {
  background: var(--ab-accent-soft);
  border: 1px solid var(--ab-border);
  border-radius: var(--ab-radius);
  padding: 14px 16px;
  font-size: 14.5px;
  line-height: 1.75;
}

#ai-bailian .ab-def strong {
  color: var(--ab-accent);
}

/* 能力卡网格 */
#ai-bailian .ab-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
}

#ai-bailian .ab-card {
  background: var(--ab-panel);
  border: 1px solid var(--ab-border);
  border-radius: var(--ab-radius);
  padding: 13px 15px;
}

#ai-bailian .ab-card h3 {
  margin: 0 0 6px;
  font-size: 14.5px;
  color: var(--ab-text);
}

#ai-bailian .ab-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ab-muted);
}

/* 表格 */
#ai-bailian .ab-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

#ai-bailian table.ab-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  min-width: 460px;
}

#ai-bailian table.ab-table th,
#ai-bailian table.ab-table td {
  border: 1px solid var(--ab-border);
  padding: 8px 10px;
  text-align: left;
  line-height: 1.6;
}

#ai-bailian table.ab-table th {
  background: var(--ab-panel-soft);
  font-weight: 700;
  white-space: nowrap;
}

#ai-bailian table.ab-table td.ab-num {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

#ai-bailian table.ab-table tr.ab-hl td {
  background: var(--ab-accent-soft);
  font-weight: 700;
}

/* 二维码占位槽 */
#ai-bailian .ab-qr {
  display: flex;
  gap: 18px;
  align-items: center;
  flex-wrap: wrap;
  background: var(--ab-panel);
  border: 1px dashed var(--ab-accent);
  border-radius: var(--ab-radius);
  padding: 16px;
}

#ai-bailian .ab-qr-slot {
  width: 148px;
  height: 148px;
  flex: 0 0 auto;
  border-radius: 10px;
  background: var(--ab-panel-soft);
  border: 1px solid var(--ab-border);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 12px;
  line-height: 1.5;
  color: var(--ab-muted);
  overflow: hidden;
}

#ai-bailian .ab-qr-slot img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* display:block 会盖掉 [hidden] 的 UA display:none，占位态下破图会露出来 */
#ai-bailian .ab-qr-slot img[hidden] {
  display: none !important;
}

#ai-bailian .ab-qr-body {
  flex: 1 1 220px;
  min-width: 0;
}

#ai-bailian .ab-qr-body p {
  margin: 0 0 6px;
  font-size: 14px;
  line-height: 1.7;
}

#ai-bailian .ab-qr-body code {
  background: var(--ab-panel-soft);
  border: 1px solid var(--ab-border);
  border-radius: 5px;
  padding: 1px 6px;
  font-size: 13px;
}

/* FAQ */
#ai-bailian .ab-faq {
  border-top: 1px solid var(--ab-border);
}

#ai-bailian .ab-faq details {
  border-bottom: 1px solid var(--ab-border);
  padding: 10px 2px;
}

#ai-bailian .ab-faq summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 14.5px;
  line-height: 1.6;
  list-style: none;
}

#ai-bailian .ab-faq summary::-webkit-details-marker {
  display: none;
}

#ai-bailian .ab-faq summary::before {
  content: "Q ";
  color: var(--ab-accent);
  font-weight: 700;
}

#ai-bailian .ab-faq details[open] summary {
  margin-bottom: 6px;
}

#ai-bailian .ab-faq .ab-a {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ab-muted);
}

/* 脚注 / 跳转 */
#ai-bailian .ab-note {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--ab-muted);
  border-top: 1px solid var(--ab-border);
  padding-top: 12px;
}

#ai-bailian .ab-cta {
  display: inline-block;
  margin-top: 4px;
  padding: 9px 18px;
  border-radius: 999px;
  background: var(--ab-accent);
  color: #fff !important;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none !important;
}

#ai-bailian .ab-cta:hover {
  opacity: 0.88;
}

@media (max-width: 600px) {
  #ai-bailian .ab-qr {
    flex-direction: column;
    align-items: flex-start;
  }
  #ai-bailian .ab-qr-slot {
    width: 100%;
    max-width: 220px;
    height: 160px;
  }
}