/* HouyiDB site — 次级页面与交互组件：状态、页脚、子页、图表、文档、响应式
   EN: secondary page components: status, footer, subpage hero, charts, docs, responsive. */

/* ---------- Status / beta ---------- */

.status-section { position: relative; overflow: hidden; }
.status-section::after {
  content: "BETA";
  position: absolute;
  right: -0.04em;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--serif);
  font-size: clamp(7rem, 24vw, 19rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: transparent;
  -webkit-text-stroke: 1px var(--line);
  pointer-events: none;
  user-select: none;
}
.status-inner {
  position: relative;
  z-index: 1;
  max-width: 44rem;
}
.status-inner h2 {
  margin: 1.1rem 0 1.2rem;
  font-family: var(--serif);
  font-size: clamp(2rem, 4.4vw, 3.6rem);
  font-weight: 500;
  line-height: 1.12;
}
.status-inner > p {
  color: var(--ink-2);
  font-size: 0.98rem;
  line-height: 1.95;
}
.status-list {
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-2);
}
.status-list li {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr);
  gap: 1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.86rem;
  line-height: 1.8;
  color: var(--ink-2);
}
.status-list li strong {
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-ink);
  padding-top: 0.25rem;
}
.status-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
  font-family: var(--mono);
  font-size: 0.66rem;
}
.status-links a { color: var(--accent-ink); text-underline-offset: 3px; }

/* ---------- CTA / footer ---------- */

.cta {
  padding-block: clamp(4rem, 9vw, 8rem);
  border-top: 1px solid var(--line-2);
}
.cta h2 {
  max-width: 18em;
  margin: 1rem 0 0;
  font-family: var(--serif);
  font-size: clamp(2.3rem, 5.6vw, 4.8rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.015em;
}
.cta-meta {
  margin-top: 1.4rem;
  font-family: var(--mono);
  font-size: 0.64rem;
  line-height: 1.9;
  color: var(--ink-3);
}
.cta-meta a { color: var(--ink-2); text-underline-offset: 3px; }
.cta-meta a:hover { color: var(--accent-ink); }

.site-footer {
  padding: 3rem 0 2rem;
  border-top: 1px solid var(--line);
  background: #090807;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) repeat(3, minmax(0, 1fr));
  gap: clamp(1.5rem, 4vw, 3rem);
}
.footer-brand p {
  max-width: 28em;
  margin-top: 0.9rem;
  font-size: 0.8rem;
  line-height: 1.85;
  color: var(--ink-3);
}
.footer-brand .brand { margin-bottom: 0.25rem; }
.footer-col h2 {
  margin-bottom: 0.8rem;
  font-family: var(--mono);
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.footer-col a {
  display: block;
  padding: 0.26rem 0;
  font-size: 0.8rem;
  color: var(--ink-2);
  text-decoration: none;
}
.footer-col a:hover { color: var(--accent-ink); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.8rem;
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.58rem;
  line-height: 1.8;
  letter-spacing: 0.03em;
  color: var(--ink-3);
}

/* ---------- Sub-page hero ---------- */

.page-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(270px, 0.65fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: end;
  padding-block: clamp(3rem, 6vw, 5.5rem) clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid var(--line);
}
.page-hero h1 {
  margin: 1rem 0 1.2rem;
  font-family: var(--serif);
  font-size: clamp(2.5rem, 5.2vw, 4.6rem);
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -0.015em;
  text-wrap: balance;
}
.page-hero h1 .accent { color: var(--accent); }
.page-hero .lede { max-width: 40em; }

.page-hero-note {
  border-top: 2px solid var(--accent);
  padding-top: 0.9rem;
  font-family: var(--mono);
  font-size: 0.63rem;
  line-height: 1.9;
  color: var(--ink-3);
}
.page-hero-note h2 {
  margin-bottom: 0.7rem;
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.page-hero-note dl { display: grid; grid-template-columns: auto 1fr; gap: 0.35rem 0.9rem; }
.page-hero-note dt { color: var(--ink-3); }
.page-hero-note dd { color: var(--ink-2); overflow-wrap: anywhere; }
.page-hero-note a { color: var(--accent-ink); text-underline-offset: 3px; }

/* ---------- Measurements ---------- */

.measure-layout {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
  padding-block: var(--section);
}

.toc {
  position: sticky;
  top: 102px;
  border-top: 1px solid var(--line-2);
  padding-top: 1rem;
}
.toc-label {
  margin-bottom: 0.6rem;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.toc ol { margin: 0; padding: 0; list-style: none; }
.toc a {
  display: flex;
  gap: 0.7rem;
  padding: 0.52rem 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.68rem;
  line-height: 1.5;
  color: var(--ink-3);
  text-decoration: none;
}
.toc a .toc-no { color: var(--ink-3); }
.toc a:hover,
.toc a.is-active { color: var(--accent-ink); }
.toc a.is-active .toc-no { color: var(--accent); }

.measure-section {
  padding-bottom: clamp(2.5rem, 5vw, 4.5rem);
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
  border-bottom: 1px solid var(--line);
}
.measure-section:last-child { padding-bottom: 0; margin-bottom: 0; border-bottom: 0; }
.measure-section > h2 {
  margin-bottom: 1rem;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.4vw, 2.8rem);
  font-weight: 500;
  line-height: 1.15;
}
.measure-section > p {
  max-width: 44em;
  margin-bottom: 1rem;
  color: var(--ink-2);
  font-size: 0.94rem;
  line-height: 1.95;
}
.measure-section > p a { color: var(--accent-ink); text-underline-offset: 3px; }

.callout {
  margin: 1.5rem 0 2rem;
  padding: 1rem 1.2rem;
  border-left: 2px solid var(--accent);
  background: var(--surface);
  color: var(--ink-2);
  font-size: 0.86rem;
  line-height: 1.9;
}
.callout strong { color: var(--ink); font-weight: 500; }
.callout a { color: var(--accent-ink); text-underline-offset: 3px; }

.facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 1.5rem 0 2rem;
  border-top: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line);
}
.fact {
  padding: 1rem 1rem 1rem 0;
  border-right: 1px solid var(--line);
}
.fact:last-child { border-right: 0; }
.fact dt {
  margin-bottom: 0.3rem;
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.fact dd {
  font-family: var(--mono);
  font-size: 0.68rem;
  line-height: 1.7;
  color: var(--ink-2);
}

.figure {
  margin: 0 0 clamp(2.5rem, 5vw, 4rem);
  padding-top: 1.1rem;
  border-top: 1px solid var(--line-2);
}
.figure:last-child { margin-bottom: 0; }
.figure-head {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr);
  gap: 1rem;
  margin-bottom: 1.35rem;
}
.figure-no {
  padding-top: 0.3rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-ink);
}
.figure h3 {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 500;
  line-height: 1.4;
}
.figure-desc {
  max-width: 54em;
  margin-top: 0.4rem;
  color: var(--ink-3);
  font-size: 0.8rem;
  line-height: 1.8;
}

.bar-chart {
  display: grid;
  gap: 0.4rem;
  padding: 1.15rem 0 0.6rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.bar-group {
  display: grid;
  grid-template-columns: 9rem minmax(0, 1fr);
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px dashed var(--line);
}
.bar-group:last-child { padding-bottom: 0; border-bottom: 0; }
.bar-label {
  padding-top: 0.4rem;
  font-family: var(--mono);
  font-size: 0.64rem;
  line-height: 1.6;
  color: var(--ink-3);
}
.bar-lines { display: grid; gap: 0.38rem; }
.bar-line {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 4.4rem;
  gap: 0.65rem;
  align-items: center;
}
.bar-track {
  position: relative;
  height: 12px;
  background-color: rgba(241, 234, 223, 0.035);
  background-image: repeating-linear-gradient(
    to right,
    rgba(241, 234, 223, 0.09) 0,
    rgba(241, 234, 223, 0.09) 1px,
    transparent 1px,
    transparent 25%
  );
}
.bar {
  display: block;
  width: var(--w, 0%);
  height: 100%;
  min-width: 2px;
  background: var(--bar-color, var(--ink-3));
  transition: width 500ms cubic-bezier(0.22, 1, 0.36, 1);
}
.bar--two { --bar-color: var(--ink-3); }
.bar--one { --bar-color: var(--accent); }
.bar--old { --bar-color: var(--ink-3); }
.bar--new1 { --bar-color: var(--accent); }
.bar--new2 { --bar-color: var(--accent-ink); }
.bar--base { --bar-color: var(--ink-3); }
.bar--cache { --bar-color: var(--accent); }
.bar-num {
  font-family: var(--mono);
  font-size: 0.64rem;
  text-align: right;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  color: var(--ink-2);
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin-top: 0.9rem;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.03em;
  color: var(--ink-3);
}
.key { display: inline-flex; align-items: center; gap: 0.45rem; }
.key::before {
  content: "";
  width: 0.85rem;
  height: 0.42rem;
  background: var(--key-color, var(--ink-3));
  flex: 0 0 auto;
}
.key--two,
.key--old,
.key--base { --key-color: var(--ink-3); }
.key--one,
.key--cache { --key-color: var(--accent); }
.key--new1 { --key-color: var(--accent); }
.key--new2 { --key-color: var(--accent-ink); }

.figure-note {
  margin-top: 0.9rem;
  max-width: 58em;
  font-size: 0.76rem;
  line-height: 1.85;
  color: var(--ink-3);
}
.figure-note strong { color: var(--ink-2); font-weight: 500; }

.data-toggle { margin-top: 1rem; }
.data-toggle summary {
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  width: fit-content;
}
.data-toggle summary:hover { color: var(--accent-ink); }
.data-table {
  width: 100%;
  margin-top: 0.75rem;
  border-collapse: collapse;
  font-size: 0.76rem;
}
.data-table caption {
  padding-bottom: 0.5rem;
  text-align: left;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}
.data-table th,
.data-table td {
  padding: 0.45rem 0.55rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  font-variant-numeric: tabular-nums;
}
.data-table thead th {
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.data-table tbody th { color: var(--ink-2); font-weight: 400; }
.data-table td { color: var(--ink-2); }

.repro-code { margin-top: 1.5rem; }
.repro-code .terminal pre { font-size: 0.74rem; }

/* ---------- Docs ---------- */

.doc-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.35fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
  padding-block: var(--section);
}
.path-card {
  position: sticky;
  top: 102px;
  border-top: 2px solid var(--accent);
  padding-top: 0.9rem;
}
.path-card h2 {
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 0.9rem;
}
.path-card ol { margin: 0; padding: 0; list-style: none; counter-reset: path; }
.path-card li {
  counter-increment: path;
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--ink-2);
}
.path-card li::before {
  content: "0" counter(path);
  display: block;
  margin-bottom: 0.2rem;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  color: var(--accent-ink);
}
.path-card a { color: var(--accent-ink); text-underline-offset: 3px; }
.path-note {
  margin-top: 1rem;
  font-family: var(--mono);
  font-size: 0.6rem;
  line-height: 1.9;
  color: var(--ink-3);
}

.doc-list { border-top: 1px solid var(--line-2); }
.doc-item {
  display: grid;
  grid-template-columns: 3.25rem minmax(0, 1fr) auto;
  gap: 1.25rem;
  padding: clamp(1.5rem, 3vw, 2.4rem) 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.doc-no {
  font-family: var(--serif);
  font-size: 1.7rem;
  line-height: 1.1;
  color: var(--accent);
}
.doc-body h2 {
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.3vw, 1.85rem);
  font-weight: 500;
  line-height: 1.35;
}
.doc-body h2 a { color: var(--ink); text-decoration: none; }
.doc-body h2 a:hover { color: var(--accent-ink); }
.doc-desc {
  max-width: 46em;
  margin-top: 0.5rem;
  color: var(--ink-2);
  font-size: 0.9rem;
  line-height: 1.85;
}
.doc-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  margin-top: 0.8rem;
  font-family: var(--mono);
  font-size: 0.64rem;
}
.doc-links a {
  color: var(--accent-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-dim);
  padding-bottom: 0.1rem;
}
.doc-links a:hover { border-bottom-color: var(--accent-ink); }
.doc-action {
  padding-top: 0.35rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  white-space: nowrap;
}
.doc-item--soon .doc-no,
.doc-item--soon .doc-action { color: var(--ink-3); }
.doc-item--soon .doc-body h2 { color: var(--ink-2); }

/* ---------- Responsive ---------- */

@media (max-width: 1080px) {
  .hero,
  .page-hero { grid-template-columns: minmax(0, 1.25fr) minmax(260px, 0.75fr); }
  .tenet { grid-template-columns: 3.5rem minmax(0, 1.4fr) minmax(210px, 0.8fr); }
  .measure-layout { grid-template-columns: 180px minmax(0, 1fr); }
}

@media (max-width: 980px) {
  .measure-layout,
  .doc-layout { grid-template-columns: minmax(0, 1fr); }
  .toc { position: static; }
  .toc ol { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 1rem; }
  .toc a { border-bottom: 1px solid var(--line); }
  .path-card { position: static; }
}

@media (max-width: 820px) {
  .header-inner { min-height: 68px; }
  .gh-link { display: none; }
  .header-tools { padding-left: 0.9rem; }
  .nav-toggle { display: inline-flex; }
  .js .site-nav {
    display: none;
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem var(--gutter) 1rem;
    background: var(--bg);
    border-bottom: 1px solid var(--line-2);
  }
  .js .site-nav.is-open { display: flex; }
  .js .site-nav a {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
  }
  .no-js .site-nav { gap: 1rem; }
  .no-js .header-inner { flex-wrap: wrap; }

  .hero,
  .page-hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
  }
  .hero-aside { max-width: 420px; }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat:nth-child(3) { border-left: 0; padding-left: 0; }
  .stat:nth-child(3),
  .stat:nth-child(4) { border-top: 1px solid var(--line); }
  .section-head { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; }
  .tenet { grid-template-columns: 3rem minmax(0, 1fr); }
  .tenet-specs {
    grid-column: 2;
    border-left: 0;
    border-top: 1px solid var(--line);
    padding: 0.8rem 0 0;
  }
  .tenet-specs li:first-child { padding-top: 0.55rem; }
  .quickstart-grid { grid-template-columns: minmax(0, 1fr); }
  .sdk-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fact:nth-child(2n) { border-right: 0; }
  .fact:nth-child(3),
  .fact:nth-child(4) { border-top: 1px solid var(--line); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
  .status-section::after { opacity: 0.55; }
  .doc-item { grid-template-columns: 2.4rem minmax(0, 1fr); }
  .doc-action { grid-column: 2; padding-top: 0; }
}

@media (max-width: 640px) {
  .brand-text span { display: none; }
  .brand-logo { height: 32px; }
  .header-right { gap: 0.8rem; }
  .header-tools { gap: 0.7rem; border-left: 0; padding-left: 0; }
  .site-nav a { font-size: 0.68rem; }
  .hero h1 { font-size: clamp(2.35rem, 10.5vw, 3.3rem); }
  .page-hero h1 { font-size: clamp(2.15rem, 9vw, 3.1rem); }
  .stat { padding: 1.3rem 1rem; }
  .stat-value { font-size: clamp(1.8rem, 7vw, 2.4rem); }
  .terminal { margin-inline: calc(var(--gutter) * -0.5); }
  .terminal pre { font-size: 0.68rem; padding: 1rem 0.85rem; }
  .quick-notes { border-top-width: 1px; }
  .sdk-grid { grid-template-columns: minmax(0, 1fr); }
  .doc-item { grid-template-columns: minmax(0, 1fr); gap: 0.4rem; }
  .doc-no { font-size: 1.2rem; }
  .doc-action { grid-column: 1; }
  .figure-head { grid-template-columns: minmax(0, 1fr); gap: 0.35rem; }
  .figure-no { padding-top: 0; }
  .bar-group { grid-template-columns: minmax(0, 1fr); gap: 0.35rem; }
  .bar-label { padding-top: 0; }
  .bar-line { grid-template-columns: minmax(0, 1fr) 4.7rem; }
  .bar-num { font-size: 0.6rem; }
  .toc ol { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .status-list li { grid-template-columns: minmax(0, 1fr); gap: 0.2rem; }
  .status-list li strong { padding-top: 0; }
  .actions { gap: 0.55rem; }
  .actions .btn { flex: 1 1 auto; }
  .footer-bottom { flex-direction: column; }
}

@media (max-width: 420px) {
  .stat-grid { grid-template-columns: minmax(0, 1fr); }
  .stat,
  .stat:nth-child(3) { border-left: 0; padding-left: 0; }
  .stat:nth-child(n + 2) { border-top: 1px solid var(--line); }
  .actions .btn { width: 100%; flex-basis: 100%; }
  .sdk-item { min-height: 0; }
  .toc ol { grid-template-columns: minmax(0, 1fr); }
  .figure h3 { font-size: 1.15rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}