/* ===== 模型接口服务 · 产品全景页 ===== */
.api-page {
  --api-accent: var(--accent-api);
  --api-accent-on: var(--accent-api-on);
  --api-soft: var(--accent-api-glow);
  --api-border: rgba(0, 212, 255, 0.32);
}

.api-product-hero {
  --product-accent: var(--api-accent);
  --product-border: var(--api-border);
  --product-soft: var(--api-soft);
  --product-hero-soft: var(--api-soft);
  --product-hero-glow: var(--api-soft);
}

.api-page section[id] { scroll-margin-top: 88px; }
.api-page .section-tag { color: var(--api-accent); background: var(--api-soft); border-color: var(--api-border); }
.api-page .btn-cta,
.api-page .btn-submit { background: var(--api-accent); color: var(--api-accent-on); }
.api-page .btn-cta:hover,
.api-page .btn-submit:hover { filter: brightness(1.06); box-shadow: 0 12px 30px var(--api-soft); }
.api-page .btn-outline:hover { color: var(--api-accent); border-color: var(--api-border); background: var(--api-soft); }

.api-hero-grid { grid-template-columns: minmax(0, .88fr) minmax(500px, 1.12fr); gap: 58px; }
.api-hero-copy .term { color: inherit; }

.api-maas-note {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 12px;
  align-items: start;
  max-width: 650px;
  margin-top: 26px;
  padding: 15px 16px;
  border: 1px solid var(--api-border);
  border-radius: 12px;
  background: var(--api-soft);
}
.api-maas-note svg { width: 28px; height: 28px; padding: 5px; border-radius: 8px; color: var(--api-accent); background: var(--card-bg); }
.api-maas-note p { margin: 0; color: var(--text-secondary); font-size: var(--fs-small); line-height: var(--lh-relaxed); }
.api-maas-note strong { color: var(--text); }

/* Hero 图：真实模型调用链路 */
.api-routing-console {
  overflow: hidden;
  border: 1px solid var(--api-border);
  border-radius: 20px;
  background: linear-gradient(155deg, var(--api-soft), var(--card-bg) 42%);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .26), 0 0 78px var(--api-soft);
}
.api-console-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 54px;
  padding: 0 20px;
  border-bottom: 1px solid var(--api-border);
  color: var(--text);
  font-size: var(--fs-small);
  font-weight: var(--fw-bold);
}
.api-console-head span,
.api-console-head strong { display: inline-flex; align-items: center; gap: 8px; }
.api-console-head i,
.api-console-foot i { width: 7px; height: 7px; border-radius: 50%; background: var(--api-accent); box-shadow: 0 0 12px var(--api-accent); }
.api-console-head strong { color: var(--api-accent); font-size: var(--fs-small); }
.api-console-body { display: grid; gap: 12px; padding: 20px; }

.api-request-card { padding: 18px; border: 1px solid var(--card-border); border-radius: 14px; background: var(--bg-elev); }
.api-request-meta { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 12px; }
.api-request-meta span { color: var(--text-secondary); font-size: var(--fs-small); }
.api-request-meta b { color: var(--api-accent); font-family: var(--font-mono); font-size: var(--fs-small); }
.api-request-card code { display: grid; grid-template-columns: 116px 1fr; gap: 10px; padding: 7px 0; border-top: 1px solid var(--card-border); color: var(--text-secondary); font-size: var(--fs-small); }
.api-request-card em { color: var(--text-muted); font-style: normal; }

.api-protocol-rail { display: grid; grid-template-columns: repeat(3, 1fr); overflow: hidden; border: 1px solid var(--card-border); border-radius: 10px; background: var(--bg-elev); }
.api-protocol-rail span { padding: 10px 8px; border-right: 1px solid var(--card-border); color: var(--text-secondary); font-size: var(--fs-small); font-weight: var(--fw-semibold); text-align: center; }
.api-protocol-rail span:last-child { border-right: 0; }

.api-route-core { display: grid; grid-template-columns: 1fr 86px; align-items: center; gap: 12px; padding: 18px; border-left: 4px solid var(--api-accent); background: var(--api-soft); }
.api-route-core small { color: var(--api-accent); font-size: var(--fs-small); }
.api-route-core strong { display: block; margin: 5px 0; color: var(--text); font-size: var(--fs-body); }
.api-route-core p { margin: 0; color: var(--text-secondary); font-size: var(--fs-small); line-height: var(--lh-relaxed); }
.api-route-signals { display: flex; align-items: center; justify-content: space-between; }
.api-route-signals span { width: 12px; height: 12px; border: 2px solid var(--api-accent); border-radius: 50%; background: var(--card-bg); box-shadow: 0 0 0 6px var(--api-soft); }
.api-route-signals span:nth-child(2) { width: 20px; height: 20px; background: var(--api-accent); }

.api-model-pools { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.api-model-pools article { min-width: 0; padding: 14px 12px; border: 1px solid var(--card-border); border-top: 3px solid var(--api-border); border-radius: 10px; background: var(--bg-elev); transition: border-color .2s ease, transform .2s ease; }
.api-model-pools article:hover { border-top-color: var(--api-accent); transform: translateY(-2px); }
.api-model-pools span { color: var(--api-accent); font-family: var(--font-mono); font-size: var(--fs-small); }
.api-model-pools strong { display: block; margin: 7px 0 4px; color: var(--text); font-size: var(--fs-small); }
.api-model-pools small { display: block; color: var(--text-muted); font-size: var(--fs-small); line-height: var(--lh-relaxed); }

.api-console-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 16px; padding: 12px 14px; border: 1px solid var(--api-border); border-radius: 10px; color: var(--text-secondary); background: var(--api-soft); font-size: var(--fs-small); }
.api-console-foot span { display: inline-flex; align-items: center; gap: 7px; }
.api-console-foot b { color: var(--api-accent); }

/* 正文信息层级 */
.api-tracks { padding-top: 76px; padding-bottom: 58px; }
.api-tracks .section-header { margin-bottom: 30px; }
.api-track-card { position: relative; overflow: hidden; padding: 30px; border-radius: 16px; }
.api-track-card::before { content: ''; position: absolute; inset: 0 auto 0 0; width: 4px; background: var(--api-accent); opacity: .7; }
.api-track-card:hover { transform: translateY(-3px); box-shadow: 0 18px 44px rgba(0, 0, 0, .16); }
.api-track-card .t-cta { display: inline-flex; align-items: center; gap: 7px; }
.api-track-card .t-cta-icon { width: 16px; height: 16px; }

.api-page .section-block,
.api-page .compliance-section,
.api-page .relation-section { padding-top: 72px; padding-bottom: 72px; }
.api-page .value-card { min-height: 126px; padding: 20px; }
.api-page .value-card:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0, 0, 0, .12); }

.api-page .model-categories { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.api-page .model-category { padding: 26px; border-radius: 16px; }
.api-page .model-category h3 { padding-bottom: 13px; border-bottom: 1px solid var(--card-border); font-size: var(--fs-h4); }
.api-page .model-category .model-row { justify-content: space-between; }
.api-page .model-category .model-name { min-width: 0; }
.api-page .model-category .model-tag { flex-shrink: 0; text-align: right; }

.api-page .compliance-box { position: relative; overflow: hidden; padding: 38px; background: linear-gradient(145deg, var(--api-soft), var(--card-bg) 54%); }
.api-page .compliance-item { border-top: 3px solid var(--api-border); }
.api-page .compliance-item:hover { border-top-color: var(--api-accent); }
.api-page .compliance-note { border: 1px dashed var(--api-border); }

.api-page .relation-diagram { position: relative; }
.api-page .relation-box { min-height: 230px; padding: 28px; }
.api-page .relation-box.left { border-left-color: var(--api-accent); }
.api-page .relation-box:hover { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(0, 0, 0, .13); }

.api-page .pricing-card { border-radius: 16px; }
.api-page .pricing-card.featured { border-color: var(--api-accent); }
.api-page .contact-section { background: linear-gradient(180deg, var(--bg-elev), var(--api-soft)); }
.api-page .contact-inner { max-width: 820px; }

@media (max-width: 1100px) {
  .api-hero-grid { grid-template-columns: minmax(0, .9fr) minmax(450px, 1.1fr); gap: 36px; }
  .api-page .model-categories { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .api-hero-grid { grid-template-columns: 1fr; }
  .api-page .model-categories { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .api-page .section-block,
  .api-page .compliance-section,
  .api-page .relation-section { padding-top: 56px; padding-bottom: 56px; }
  .api-tracks { padding-top: 56px; }
  .api-request-meta { align-items: flex-start; flex-direction: column; }
  .api-route-core { grid-template-columns: 1fr; }
  .api-route-signals { display: none; }
  .api-model-pools { grid-template-columns: 1fr; }
  .api-console-foot { align-items: flex-start; flex-direction: column; }
  .api-page .compliance-box { padding: 24px 18px; }
}

@media (max-width: 480px) {
  .api-console-body { padding: 14px; }
  .api-console-head { padding: 0 14px; }
  .api-console-head strong { display: none; }
  .api-request-card { padding: 14px; }
  .api-request-card code { grid-template-columns: 1fr; gap: 2px; }
  .api-protocol-rail { grid-template-columns: 1fr; }
  .api-protocol-rail span { border-right: 0; border-bottom: 1px solid var(--card-border); }
  .api-protocol-rail span:last-child { border-bottom: 0; }
  .api-page .model-category { padding: 20px 16px; }
  .api-page .model-category .model-row { align-items: flex-start; flex-direction: column; }
  .api-page .model-category .model-tag { text-align: left; }
}

[data-theme="light"] .api-page { --api-border: rgba(0, 107, 133, 0.3); }
[data-theme="light"] .api-routing-console { box-shadow: 0 28px 65px rgba(15, 23, 42, .14), 0 0 64px var(--api-soft); }

@media (prefers-reduced-motion: reduce) {
  .api-model-pools article,
  .api-track-card,
  .api-page .value-card,
  .api-page .relation-box { transition: none; }
}