.page-contact {
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-contact .contact-crumbs {
  padding-top: var(--space-3);
}

.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-contact .breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.page-contact .breadcrumbs li + li::before {
  content: "/";
  color: var(--color-line);
}

.page-contact .breadcrumbs a {
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: var(--border-thin) solid transparent;
  transition: color 180ms ease, border-color 180ms ease;
}

.page-contact .breadcrumbs a:hover,
.page-contact .breadcrumbs a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-focus);
}

.page-contact .breadcrumbs li[aria-current] {
  color: var(--color-ink);
}

/* ---------- 首屏深色板 ---------- */
.page-contact .contact-hero {
  padding-top: var(--space-3);
  padding-bottom: var(--space-6);
}

.page-contact .contact-board {
  display: grid;
  gap: var(--space-6);
  padding: var(--space-6) var(--space-4);
  background: var(--color-contrast-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
}

.page-contact .contact-board__copy .eyebrow {
  margin: 0 0 var(--space-2);
  color: var(--color-contrast-accent);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
}

.page-contact .contact-title {
  margin: 0 0 var(--space-3);
  max-width: 20ch;
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-contact .contact-board__copy .lede {
  margin: 0;
  max-width: 48ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

.page-contact .contact-board__aside {
  align-self: end;
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-contact .contact-board__label {
  margin: 0 0 var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

.page-contact .contact-board__value {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--color-contrast-accent);
}

.page-contact .contact-board__note {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.75;
  color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent);
}

/* ---------- 三条渠道 ---------- */
.page-contact .contact-channels {
  margin-top: var(--space-4);
}

.page-contact .contact-channel {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  transition: box-shadow 180ms ease, transform 180ms ease;
}

.page-contact .contact-channel:hover {
  box-shadow: var(--shadow-2);
}

.page-contact .contact-channel .cell-title {
  margin: 0;
  color: var(--color-ink);
}

.page-contact .contact-channel .cell-text {
  margin: 0;
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
  line-height: 1.75;
}

.page-contact .contact-channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  color: var(--color-primary);
  word-break: break-word;
  user-select: all;
}

.page-contact .contact-channel .cell-kicker {
  color: var(--color-ink-muted);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
}

.page-contact .bento-cell--focus .cell-kicker {
  color: color-mix(in srgb, var(--color-primary-ink) 74%, transparent);
}

.page-contact .bento-cell--focus .cell-title,
.page-contact .bento-cell--focus .contact-channel__value {
  color: var(--color-primary-ink);
}

.page-contact .bento-cell--focus .cell-text {
  color: color-mix(in srgb, var(--color-primary-ink) 84%, transparent);
}

.page-contact .contact-fit {
  margin-top: auto;
  padding-top: var(--space-2);
  display: grid;
  gap: var(--space-1);
  opacity: 0.68;
  transition: opacity 180ms ease;
}

.page-contact .contact-channel:hover .contact-fit,
.page-contact .contact-channel:focus-within .contact-fit {
  opacity: 1;
}

.page-contact .contact-fit__row {
  display: flex;
  gap: var(--space-1);
  margin: 0;
  font-size: var(--text-xs);
  line-height: 1.65;
  color: var(--color-ink-soft);
}

.page-contact .contact-fit__tag {
  flex: none;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--color-primary);
}

.page-contact .contact-fit__row--no .contact-fit__tag {
  color: var(--color-ink-muted);
}

.page-contact .bento-cell--focus .contact-fit__row {
  color: color-mix(in srgb, var(--color-primary-ink) 82%, transparent);
}

.page-contact .bento-cell--focus .contact-fit__tag {
  color: var(--color-primary-ink);
}

/* ---------- 对接场景图 ---------- */
.page-contact .contact-scene {
  margin: var(--space-6) 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface-alt);
  box-shadow: var(--shadow-1);
}

.page-contact .contact-scene img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-contact .contact-scene__caption {
  margin: 0;
  padding: var(--space-2) var(--space-4) var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-muted);
}

/* ---------- 地址与基地 ---------- */
.page-contact .contact-place__grid {
  display: grid;
  gap: var(--space-4);
}

.page-contact .contact-place__media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}

.page-contact .contact-place__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .contact-place__body .eyebrow {
  margin: 0 0 var(--space-2);
  color: var(--color-ink-muted);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
}

.page-contact .contact-place__body .section-title {
  margin: 0 0 var(--space-3);
}

.page-contact .contact-address {
  margin: 0 0 var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--color-ink);
  user-select: all;
}

.page-contact .contact-place__body .prose {
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-contact .contact-place__body .prose:last-child {
  margin-bottom: 0;
}

.page-contact .contact-inline-link {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 42%, transparent);
  transition: background-color 180ms ease, border-color 180ms ease;
}

.page-contact .contact-inline-link:hover {
  background: var(--color-highlight);
  border-bottom-color: var(--color-primary);
}

/* ---------- 准备清单 ---------- */
.page-contact .contact-prep__fold {
  margin-top: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
  overflow: hidden;
}

.page-contact .contact-prep__fold > summary {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-ink);
}

.page-contact .contact-prep__fold > summary::-webkit-details-marker {
  display: none;
}

.page-contact .contact-prep__fold > summary::before {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  transform: rotate(-45deg);
  transition: transform 180ms ease;
}

.page-contact .contact-prep__fold[open] > summary::before {
  transform: rotate(45deg);
}

.page-contact .contact-prep__fold .fold-body {
  padding: 0 var(--space-4) var(--space-4);
}

.page-contact .contact-checklist {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: prep;
  display: grid;
  gap: var(--space-3);
  max-width: var(--measure);
}

.page-contact .contact-checklist > li {
  counter-increment: prep;
  position: relative;
  padding-left: var(--space-6);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-contact .contact-checklist > li::before {
  content: counter(prep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.1em;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  color: var(--color-primary);
}

.page-contact .contact-checklist strong {
  display: block;
  margin-bottom: var(--space-1);
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-ink);
}

/* ---------- 回应与后续 ---------- */
.page-contact .contact-strip {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-6) var(--space-4);
  background: var(--color-contrast-surface);
  border-radius: var(--radius-lg);
}

.page-contact .contact-strip__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-contact .contact-strip__note {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.75;
  color: color-mix(in srgb, var(--color-contrast-ink) 66%, transparent);
}

.page-contact .contact-strip__list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: var(--space-3);
}

.page-contact .contact-strip__list > li {
  counter-increment: step;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-2);
  font-size: var(--text-base);
  line-height: 1.75;
  color: color-mix(in srgb, var(--color-contrast-ink) 88%, transparent);
}

.page-contact .contact-strip__list > li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  color: var(--color-contrast-accent);
  padding-top: 0.22em;
}

/* ---------- 出口 ---------- */
.page-contact .contact-exit__inner {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-primary-soft);
}

.page-contact .contact-exit__line {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-contact .contact-exit__link {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 45%, transparent);
  transition: background-color 180ms ease, border-color 180ms ease;
}

.page-contact .contact-exit__link:hover {
  background: var(--color-highlight);
  border-bottom-color: var(--color-primary);
}

/* ---------- 焦点可见 ---------- */
.page-contact a:focus-visible,
.page-contact summary:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.page-contact .contact-prep__fold > summary:focus-visible {
  outline-offset: -3px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .page-contact .shell {
    padding-left: var(--space-3);
    padding-right: var(--space-3);
  }

  .page-contact .contact-hero {
    padding-bottom: var(--space-4);
  }

  .page-contact .contact-board {
    padding: var(--space-4) var(--space-3);
    gap: var(--space-4);
  }

  .page-contact .contact-strip {
    padding: var(--space-4) var(--space-3);
  }

  .page-contact .contact-exit__inner {
    padding: var(--space-3);
  }
}

@media (min-width: 860px) {
  .page-contact .contact-board {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.85fr);
    align-items: end;
    gap: var(--space-8);
    padding: var(--space-8) var(--space-6);
  }

  .page-contact .contact-title {
    font-size: var(--text-4xl);
  }

  .page-contact .contact-board__aside {
    padding-top: var(--space-4);
  }

  .page-contact .contact-strip {
    grid-template-columns: minmax(0, 0.62fr) minmax(0, 1.38fr);
    gap: var(--space-6);
    padding: var(--space-8) var(--space-6);
  }

  .page-contact .contact-exit__inner {
    padding: var(--space-6);
  }
}

@media (min-width: 880px) {
  .page-contact .contact-place__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: var(--space-6);
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-channel,
  .page-contact .contact-fit,
  .page-contact .contact-inline-link,
  .page-contact .contact-exit__link,
  .page-contact .breadcrumbs a,
  .page-contact .contact-prep__fold > summary::before {
    transition: none;
  }

  .page-contact .contact-channel:hover {
    box-shadow: var(--shadow-1);
  }
}