.page-contact {
  --contact-tip-scale: 1;
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  margin-bottom: var(--space-4);
}

.page-contact .breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  text-decoration: underline;
}

.page-contact .breadcrumb-sep {
  color: var(--color-line);
}

.page-contact .contact-intro {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.page-contact .contact-title {
  margin: 0;
  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-ink);
  max-width: 26ch;
}

/* 渠道色块：尺寸不等的错落排布 */
.page-contact .channel-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.page-contact .channel-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid transparent;
  background: var(--color-surface);
  color: var(--color-ink);
}

.page-contact .channel-block--mail {
  background: var(--color-primary-soft);
  border-color: var(--color-accent);
  padding: var(--space-6);
  gap: var(--space-3);
  box-shadow: var(--shadow-1);
}

.page-contact .channel-block--phone {
  background: var(--color-highlight);
  border-color: var(--color-accent);
}

.page-contact .channel-block--address {
  background: var(--color-surface-alt);
  border-color: var(--color-line);
}

.page-contact .channel-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-ink-soft);
  letter-spacing: 0.08em;
}

.page-contact .channel-badge::before {
  content: "";
  flex: none;
  width: var(--space-2);
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

.page-contact .channel-name {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-contact .channel-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--color-ink);
  overflow-wrap: anywhere;
}

.page-contact .channel-value--lg {
  font-size: var(--text-lg);
  letter-spacing: 0.01em;
}

.page-contact .channel-desc {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: 46ch;
}

.page-contact .channel-block--mail .status-pill {
  align-self: flex-start;
  font-size: var(--text-xs);
}

.page-contact .channel-figure,
.page-contact .rhythm-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.page-contact .channel-figure .media-frame,
.page-contact .rhythm-figure .media-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-contact .channel-figure img,
.page-contact .rhythm-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .channel-figure figcaption,
.page-contact .rhythm-figure figcaption {
  font-size: var(--text-xs);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

/* 可展开的受理范围 */
.page-contact .scope-accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.page-contact .scope-accordion .expand-group {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  box-shadow: var(--shadow-1);
}

.page-contact .scope-accordion summary,
.page-contact .rhythm-details summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 500;
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-contact .scope-accordion summary::-webkit-details-marker,
.page-contact .rhythm-details summary::-webkit-details-marker {
  display: none;
}

.page-contact .scope-accordion summary::before,
.page-contact .rhythm-details summary::before {
  content: "";
  flex: none;
  width: var(--space-2);
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  transition: width 240ms ease, background-color 240ms ease;
}

.page-contact .scope-accordion details[open] summary::before,
.page-contact .rhythm-details[open] summary::before {
  width: var(--space-4);
  background: var(--color-accent);
}

.page-contact .expand-group__body {
  padding-top: var(--space-2);
  padding-left: var(--space-4);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-contact .expand-group__body p {
  margin: 0 0 var(--space-2);
}

.page-contact .expand-group__body p:last-child {
  margin-bottom: 0;
}

.page-contact .expand-group__body a,
.page-contact .contact-outro a {
  color: var(--color-primary);
  text-underline-offset: 3px;
}

.page-contact .expand-group__body a:hover,
.page-contact .contact-outro a:hover {
  color: var(--color-accent);
}

/* 回复时段刻度 */
.page-contact .timeline {
  margin-top: var(--space-6);
  padding: var(--space-6) var(--space-4) var(--space-3);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
}

.page-contact .timeline-track {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  height: var(--space-8);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-contact .timeline-tick {
  position: relative;
  flex: none;
  width: 1px;
  height: 34%;
  border-radius: var(--radius-pill);
  background: var(--color-line);
}

.page-contact .timeline-tick:first-child,
.page-contact .timeline-tick:last-child {
  width: 3px;
  height: 100%;
  background: var(--color-accent);
}

.page-contact .timeline-tick::before {
  content: "";
  position: absolute;
  left: -12px;
  right: -12px;
  top: -24px;
  bottom: 0;
}

.page-contact .timeline-tick::after {
  content: attr(data-tip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + var(--space-2));
  transform: translate(-50%, 6px);
  padding: 2px var(--space-1);
  border-radius: var(--radius-sm);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.6;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 240ms ease, transform 240ms ease;
  z-index: 2;
}

.page-contact .timeline-tick:first-child::after {
  left: 0;
  transform: translate(0, 6px);
}

.page-contact .timeline-tick:last-child::after {
  left: auto;
  right: 0;
  transform: translate(0, 6px);
}

.page-contact .timeline-tick:hover::after {
  opacity: 1;
  transform: translate(-50%, 0);
}

.page-contact .timeline-tick:first-child:hover::after,
.page-contact .timeline-tick:last-child:hover::after {
  transform: translate(0, 0);
}

.page-contact .timeline-ends {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2);
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-contact .timeline-end .num {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-ink);
}

/* 更正清单 */
.page-contact .rhythm-body {
  margin-top: var(--space-6);
  align-items: start;
}

.page-contact .rhythm-details {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  box-shadow: var(--shadow-1);
}

.page-contact .checklist {
  list-style: none;
  margin: 0 0 var(--space-3);
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.page-contact .checklist li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-contact .checklist li::before {
  content: "";
  flex: none;
  width: var(--space-2);
  height: 2px;
  margin-top: 0.75em;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
}

.page-contact .contact-outro {
  margin: var(--space-4) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-contact .contact-outro a {
  color: var(--color-primary);
  text-underline-offset: 3px;
}

@media (min-width: 720px) {
  .page-contact .contact-title {
    font-size: var(--text-4xl);
    max-width: 24ch;
  }

  .page-contact .timeline {
    padding: var(--space-8) var(--space-6) var(--space-3);
  }
}

@media (min-width: 900px) {
  .page-contact .channel-layout {
    grid-template-columns: repeat(12, 1fr);
    column-gap: var(--gutter);
    row-gap: var(--space-4);
    align-items: start;
  }

  .page-contact .channel-block--mail {
    grid-column: 1 / 8;
    grid-row: 1;
  }

  .page-contact .channel-figure {
    grid-column: 8 / 13;
    grid-row: 1;
  }

  .page-contact .channel-block--phone {
    grid-column: 1 / 6;
    grid-row: 2;
  }

  .page-contact .channel-block--address {
    grid-column: 6 / 11;
    grid-row: 2;
    margin-top: var(--space-8);
  }

  .page-contact .scope-accordion .expand-group,
  .page-contact .rhythm-details {
    padding: var(--space-3) var(--space-6);
  }

  .page-contact .expand-group__body {
    padding-left: var(--space-6);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .timeline-tick::after,
  .page-contact .scope-accordion summary::before,
  .page-contact .rhythm-details summary::before {
    transition: opacity 200ms linear;
  }

  .page-contact .timeline-tick::after,
  .page-contact .timeline-tick:first-child::after,
  .page-contact .timeline-tick:last-child::after {
    transform: translate(-50%, 0);
  }

  .page-contact .timeline-tick:first-child::after,
  .page-contact .timeline-tick:last-child::after {
    transform: translate(0, 0);
  }
}
<<<END>>>