.page-contact {
  --contact-gap: var(--gutter);
}

.page-contact .contact-crumb {
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-line);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding-block: var(--space-6) var(--space-4);
  text-align: center;
}

.page-contact .contact-hero-title {
  margin: var(--space-3) 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  overflow-wrap: anywhere;
}

.page-contact .contact-hero-lede {
  max-width: 64ch;
  margin: 0 auto;
  color: var(--color-ink-soft);
}

.page-contact .contact-hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.page-contact .contact-hero-figure {
  max-width: var(--container);
  margin: var(--space-6) auto 0;
  padding-inline: var(--space-3);
}

.page-contact .contact-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1080 / 320;
  object-fit: cover;
  border: 1px solid var(--color-line);
}

/* ---------- 渠道卡 ---------- */

.page-contact .contact-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-3) var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  transition: background-color 160ms ease, border-color 160ms ease;
}

.page-contact .channel-card::after {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px solid transparent;
  pointer-events: none;
  transition: border-color 160ms ease;
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  background: var(--color-surface-alt);
  border-color: var(--color-ink-muted);
}

.page-contact .channel-card:hover::after,
.page-contact .channel-card:focus-within::after {
  border-color: var(--color-primary);
}

.page-contact .channel-card:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

.page-contact .channel-index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  color: var(--color-primary);
}

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

.page-contact .channel-value {
  margin: 0;
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  overflow-wrap: anywhere;
}

.page-contact .channel-value a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--color-primary);
  text-underline-offset: 4px;
  transition: color 140ms ease;
}

.page-contact .channel-value a:hover,
.page-contact .channel-value a:focus-visible {
  color: var(--color-primary);
}

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

.page-contact .channel-points {
  list-style: none;
  margin: auto 0 0;
  padding: var(--space-2) 0 0;
  border-top: 1px solid var(--color-line);
  display: grid;
  gap: 6px;
}

.page-contact .channel-points li {
  position: relative;
  padding-left: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-contact .channel-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 8px;
  height: 1px;
  background: var(--color-primary);
}

/* ---------- 三类问题 ---------- */

.page-contact .contact-routes {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
}

.page-contact .issue-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .issue-row {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3) 0;
  border-top: 1px solid var(--color-line);
}

.page-contact .issue-row:last-child {
  border-bottom: 1px solid var(--color-line);
}

.page-contact .issue-tag {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-primary);
}

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

.page-contact .issue-text {
  margin: 0;
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

.page-contact .issue-meta {
  margin: var(--space-1) 0 0;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-contact .contact-routes-aside {
  display: grid;
  gap: var(--space-2);
  align-content: start;
}

.page-contact .contact-routes-figure {
  margin: 0;
  padding: 5px;
  border: 1px solid var(--color-line);
}

.page-contact .contact-routes-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 520 / 340;
  object-fit: cover;
}

/* ---------- 用途边界 ---------- */

.page-contact .boundary-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
}

.page-contact .boundary-col {
  padding: var(--space-3);
  border: 1px solid var(--color-contrast-line);
}

.page-contact .boundary-col h3 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-ink);
}

.page-contact .boundary-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-1);
}

.page-contact .boundary-col li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-contact .boundary-col li::before {
  position: absolute;
  left: 0;
  top: 0;
  line-height: var(--leading-body);
}

.page-contact .boundary-col--yes li::before {
  content: "—";
  color: var(--color-contrast-accent);
}

.page-contact .boundary-col--no li::before {
  content: "×";
  color: var(--color-primary);
}

.page-contact .boundary-note {
  margin: var(--space-4) 0 0;
  max-width: var(--measure);
  font-size: var(--text-xs);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.78;
}

/* ---------- 准备清单与回应节奏 ---------- */

.page-contact .prepare-panel {
  padding: var(--space-4) var(--space-3);
  background: var(--color-highlight);
  border: 1px solid var(--color-line);
}

.page-contact .prepare-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-contact .prepare-list li {
  display: grid;
  grid-template-columns: 4.5em 1fr;
  gap: var(--space-2);
  align-items: baseline;
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-line);
}

.page-contact .prepare-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .prepare-key {
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: 0.12em;
  color: var(--color-primary);
}

.page-contact .prepare-text {
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-contact .pace-heading {
  margin: var(--space-6) 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-contact .pace-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
}

.page-contact .pace-item {
  padding-top: var(--space-2);
  border-top: 2px solid var(--color-primary);
}

.page-contact .pace-label {
  margin: 0 0 var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: var(--color-primary);
}

.page-contact .pace-text {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 行动出口 ---------- */

.page-contact .exit-frame {
  padding: var(--space-4) var(--space-3);
  background: var(--color-surface);
}

.page-contact .exit-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);
  color: var(--color-ink);
}

.page-contact .exit-text {
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

.page-contact .exit-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.page-contact .exit-meta {
  margin: var(--space-3) 0 0;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

/* ---------- 响应式 ---------- */

@media (min-width: 680px) {
  .page-contact .contact-channels {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .pace-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-routes {
    grid-template-columns: 1.65fr 1fr;
    align-items: start;
  }

  .page-contact .boundary-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-contact .issue-row {
    padding: var(--space-4) 0;
  }
}

@media (min-width: 1040px) {
  .page-contact .prepare-panel {
    padding: var(--space-6) var(--space-4);
  }

  .page-contact .exit-frame {
    padding: var(--space-6) var(--space-4);
  }
}