.page-contact {
  --contact-card-gap: var(--space-3);
}

/* ---------- 面包屑与开场 ---------- */
.page-contact .breadcrumbs {
  padding-top: var(--space-4);
}

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

.page-contact .contact-intro__title {
  margin: var(--space-2) 0 var(--space-3);
  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: 24ch;
}

.page-contact .contact-intro__lead {
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

/* ---------- 渠道区 ---------- */
.page-contact .contact-channels {
  padding-block: var(--space-6) var(--space-8);
}

.page-contact .contact-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-card-gap);
  margin-top: var(--space-6);
}

.page-contact .channel {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
}

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

.page-contact .channel__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-contact .channel__title {
  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-size: var(--text-lg);
  color: var(--color-primary);
  word-break: break-word;
}

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

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

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

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

.page-contact .channel__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
}

.page-contact .channel__foot {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}

.page-contact .channel__action {
  align-self: flex-start;
  margin-top: auto;
}

.page-contact .contact-channels__figure {
  margin: 0;
}

.page-contact .contact-channels__figure .figure__img,
.page-contact .contact-response__figure .figure__img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 回应节奏 ---------- */
.page-contact .contact-response {
  padding-block: var(--space-8);
  background: var(--color-surface-alt);
}

.page-contact .contact-response__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-contact .contact-response__figure {
  margin: 0;
}

.page-contact .response-list {
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-4);
}

.page-contact .response-list__item {
  display: grid;
  gap: var(--space-1);
}

.page-contact .response-list__term {
  margin: 0;
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-primary);
}

.page-contact .response-list__desc {
  margin: 0;
  max-width: 56ch;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 发信前准备 ---------- */
.page-contact .contact-prep {
  padding-block: var(--space-8);
}

.page-contact .contact-prep__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

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

.page-contact .prep-list__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
}

.page-contact .prep-list__box {
  flex: none;
  width: 22px;
  height: 22px;
  margin: 2px 0 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

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

.page-contact .prep-list__label {
  display: grid;
  gap: 4px;
  cursor: pointer;
}

.page-contact .prep-list__name {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

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

.page-contact .prep-list__box:checked + .prep-list__label .prep-list__name {
  color: var(--color-ink-muted);
}

.page-contact .prep-list__box:checked + .prep-list__label .prep-list__hint {
  color: var(--color-ink-muted);
}

.page-contact .prep-aside {
  align-self: start;
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-highlight);
}

.page-contact .prep-aside__label {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-contact .prep-aside__sample {
  margin: 0;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-surface) 78%, transparent);
  font-size: var(--text-sm);
  color: var(--color-ink);
  word-break: break-word;
}

.page-contact .prep-aside__note {
  margin: var(--space-1) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 自助入口（深底） ---------- */
.page-contact .contact-selfserve {
  padding-block: var(--space-8);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-contact .contact-selfserve .section-head__kicker {
  color: var(--color-contrast-accent);
}

.page-contact .contact-selfserve .section-head__title {
  color: var(--color-contrast-ink);
}

.page-contact .contact-selfserve__lead {
  margin: var(--space-2) 0 0;
  max-width: 62ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent);
}

.page-contact .selfserve-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.page-contact .selfserve-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--color-contrast-ink) 9%, transparent);
  color: var(--color-contrast-ink);
  text-decoration: none;
  transition: background 160ms ease, transform 160ms ease;
}

.page-contact .selfserve-card--lead {
  background: color-mix(in srgb, var(--color-primary) 42%, transparent);
}

.page-contact .selfserve-card:hover {
  background: color-mix(in srgb, var(--color-contrast-ink) 16%, transparent);
  transform: translateY(-2px);
}

.page-contact .selfserve-card--lead:hover {
  background: color-mix(in srgb, var(--color-primary) 56%, transparent);
}

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

.page-contact .selfserve-card__meta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-contrast-accent);
}

.page-contact .selfserve-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
}

.page-contact .selfserve-card__desc {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 80%, transparent);
}

.page-contact .selfserve-card__cta {
  margin-top: auto;
  padding-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-contrast-accent);
}

.page-contact .contact-selfserve__closing {
  margin: var(--space-6) 0 0;
  max-width: 66ch;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}

.page-contact .contact-selfserve__link {
  color: var(--color-contrast-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 桌面栅格 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-intro {
    padding-block: var(--space-8) var(--space-6);
  }

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

  .page-contact .contact-channels__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--space-3);
    align-items: start;
  }

  .page-contact .channel--mail {
    grid-column: 1 / 8;
    grid-row: 1;
    min-height: 320px;
  }

  .page-contact .channel--phone {
    grid-column: 1 / 5;
    grid-row: 2;
  }

  .page-contact .channel--address {
    grid-column: 5 / 8;
    grid-row: 2;
  }

  .page-contact .contact-channels__figure {
    grid-column: 8 / 13;
    grid-row: 1 / 3;
    align-self: stretch;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
  }

  .page-contact .contact-channels__figure .figure__media {
    flex: 1 1 auto;
    min-height: 300px;
  }

  .page-contact .contact-channels__figure .figure__img {
    height: 100%;
    aspect-ratio: auto;
  }

  .page-contact .contact-response__grid {
    grid-template-columns: 5fr 7fr;
    align-items: center;
    gap: var(--space-8);
  }

  .page-contact .contact-prep__grid {
    grid-template-columns: 7fr 5fr;
    gap: var(--space-6);
    align-items: start;
  }

  .page-contact .selfserve-grid {
    grid-template-columns: 7fr 5fr;
    grid-template-rows: auto auto;
  }

  .page-contact .selfserve-card--lead {
    grid-column: 1;
    grid-row: 1 / 3;
    justify-content: flex-start;
  }

  .page-contact .selfserve-card:not(.selfserve-card--lead) {
    grid-column: 2;
  }
}

@media (min-width: 1240px) {
  .page-contact .contact-intro__title {
    font-size: var(--text-4xl);
  }
}
<<<END>>>