/* 枢纽 API 文档 — 墨青阅读台（独立预览工程） */

.docs-body {
  min-height: 100vh;
  background:
    radial-gradient(ellipse 55% 35% at 0% 0%, rgba(13, 110, 105, 0.08), transparent 55%),
    var(--paper);
  color: var(--ink);
}

.docs-body .shell-topbar .topbar-right {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.docs-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--teal-deep);
  background: color-mix(in srgb, var(--teal) 12%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--teal) 28%, var(--line));
}

/* —— 文档首页 —— */
.docs-home {
  width: min(52rem, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.25rem 0 4rem;
}

.docs-home-hero {
  margin-bottom: 1.75rem;
  max-width: 40rem;
  animation: docs-in 0.45s var(--ease);
}

.docs-kicker {
  margin: 0 0 0.35rem;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
}

.docs-home-hero h1 {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: var(--leading-tight);
}

.docs-home-hero .lead {
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
}

.docs-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.25rem;
  margin: 1.25rem 0 0;
  padding: 0.85rem 0 0;
  border-top: 1px solid var(--line);
  font-size: var(--text-sm);
  color: var(--ink-soft);
}

.docs-quick code {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.9em;
  padding: 0.15rem 0.4rem;
  background: var(--foam);
  border-radius: var(--radius);
  color: var(--ink);
}

.doc-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.doc-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.35rem 1.35rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: var(--surface);
  text-decoration: none;
  color: inherit;
  min-height: 12rem;
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
  animation: docs-in 0.5s var(--ease) both;
}

.doc-card:nth-child(2) {
  animation-delay: 0.06s;
}

.doc-card:hover {
  border-color: color-mix(in srgb, var(--teal) 45%, var(--line));
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(12, 18, 21, 0.06);
}

.doc-card-tag {
  align-self: flex-start;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
}

.doc-card h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.doc-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  flex: 1;
}

.doc-card code {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.92em;
  color: var(--ink);
}

.doc-card-meta {
  margin-top: 0.35rem;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--teal-deep);
}

.doc-card-meta::after {
  content: " →";
}

.docs-home-note {
  margin: 1.5rem 0 0;
  padding: 0.9rem 1rem;
  border-radius: 0.5rem;
  border: 1px solid color-mix(in srgb, var(--signal) 28%, var(--line));
  background: color-mix(in srgb, var(--signal) 8%, var(--surface));
  color: var(--ink-soft);
  font-size: var(--text-sm);
  line-height: 1.55;
}

/* —— 产品文档版式 —— */
.api-wrap {
  display: grid;
  grid-template-columns: 13.5rem minmax(0, 1fr);
  gap: 1.75rem;
  width: min(72rem, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.35rem 0 4rem;
  align-items: start;
}

.api-nav {
  position: sticky;
  top: 0.85rem;
  align-self: start;
  padding: 0.95rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: var(--surface);
  font-size: var(--text-sm);
}

.api-nav h2 {
  margin: 0 0 0.65rem;
  padding: 0 0.35rem;
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.api-nav a {
  display: block;
  color: var(--ink-soft);
  text-decoration: none;
  padding: 0.38rem 0.5rem;
  border-radius: var(--radius);
  border: 0;
  background: none;
  font: inherit;
  line-height: 1.35;
  transition: color 0.15s ease, background 0.15s ease;
}

.api-nav a:hover {
  color: var(--ink);
  background: var(--foam);
}

.api-main {
  min-width: 0;
  animation: docs-in 0.4s var(--ease);
}

.api-main h1 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: var(--leading-tight);
}

.api-lead {
  margin: 0 0 1.25rem;
  color: var(--ink-soft);
  font-size: var(--text-lg);
  max-width: 46rem;
  line-height: var(--leading-relaxed);
}

.api-main h2 {
  margin: 2.1rem 0 0.75rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  scroll-margin-top: 1rem;
}

.api-main h2:first-of-type {
  border-top: 0;
  padding-top: 0.25rem;
  margin-top: 1.5rem;
}

.api-main h3 {
  margin: 1.35rem 0 0.5rem;
  font-size: var(--text-lg);
  font-weight: 600;
}

.api-main p,
.api-main li {
  color: var(--ink);
  line-height: var(--leading-relaxed);
}

.api-main ul,
.api-main ol {
  padding-left: 1.25rem;
}

.api-main .muted {
  color: var(--ink-soft);
  font-size: var(--text-sm);
}

.doc-switch {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  margin: 0 0 1.15rem;
  padding: 0.55rem 0.75rem;
  border-radius: 999px;
  background: var(--foam);
  border: 1px solid var(--line);
  font-size: var(--text-sm);
  color: var(--ink-soft);
}

.doc-switch a {
  color: var(--teal-deep);
  font-weight: 600;
  text-decoration: none;
}

.doc-switch a:hover {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.doc-switch code {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.9em;
}

.callout {
  margin: 1rem 0;
  padding: 0.9rem 1rem;
  background: color-mix(in srgb, var(--teal) 8%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--teal) 22%, var(--line));
  border-left: 3px solid var(--teal);
  border-radius: 0 0.45rem 0.45rem 0;
  font-size: var(--text-sm);
  color: var(--ink);
  line-height: 1.55;
}

.callout.warn {
  border-left-color: var(--signal);
  border-color: color-mix(in srgb, var(--signal) 28%, var(--line));
  background: color-mix(in srgb, var(--signal) 8%, var(--surface));
}

.endpoint {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.45rem 0.65rem;
  margin: 0.65rem 0;
  padding: 0.75rem 0.9rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  font-size: var(--text-sm);
}

.endpoint .method {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3.4rem;
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #0c1215;
  background: #7dd3c7;
}

.endpoint code.path {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: var(--text-sm);
  color: var(--ink);
  background: transparent;
  padding: 0;
}

pre.code,
.flow-box {
  margin: 0.75rem 0 1rem;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  background: #0c1215;
  color: #e8eef0;
  border-radius: 0.45rem;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: var(--text-xs);
  line-height: 1.6;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

pre.code {
  white-space: pre-wrap;
}

.flow-box {
  color: #c8d4d8;
  white-space: pre;
}

table.api-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: var(--text-sm);
  margin: 0.75rem 0 1.25rem;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  overflow: hidden;
  background: var(--surface);
}

table.api-table th,
table.api-table td {
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  padding: 0.65rem 0.8rem;
  text-align: left;
  vertical-align: top;
}

table.api-table th:last-child,
table.api-table td:last-child {
  border-right: 0;
}

table.api-table tr:last-child td {
  border-bottom: 0;
}

table.api-table th {
  background: var(--foam);
  font-weight: 600;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.base-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin: 0.55rem 0 1rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  background: var(--surface);
}

.base-row > span:first-child {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--ink-soft);
}

.base-row code {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: var(--text-sm);
  padding: 0.3rem 0.5rem;
  background: var(--foam);
  border-radius: var(--radius);
  color: var(--ink);
}

.docs-foot {
  margin-top: 2.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.25rem;
  font-size: var(--text-sm);
  color: var(--ink-soft);
}

.docs-foot a {
  color: var(--teal-deep);
  font-weight: 600;
  text-decoration: none;
}

.docs-foot a:hover {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

@keyframes docs-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .docs-home-hero,
  .doc-card,
  .api-main {
    animation: none;
  }
  .doc-card:hover {
    transform: none;
  }
}

@media (max-width: 900px) {
  .doc-cards {
    grid-template-columns: 1fr;
  }

  .api-wrap {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .api-nav {
    position: static;
    display: flex;
    flex-wrap: wrap;
    gap: 0.2rem 0.15rem;
    padding: 0.75rem;
  }

  .api-nav h2 {
    width: 100%;
    margin-bottom: 0.35rem;
  }

  .api-nav a {
    padding: 0.35rem 0.55rem;
  }
}