.page-contact {
  --pc-rule: rgba(12, 20, 31, .14);
  --pc-muted: rgba(12, 20, 31, .52);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-contact .pc-crumb {
  margin-top: clamp(20px, 4vw, 36px);
}

/* ── 首屏 ── */
.page-contact .pc-hero {
  padding-block: clamp(32px, 6vw, 64px) clamp(44px, 7vw, 84px);
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-hero__kick {
  margin: 0 0 18px;
  color: var(--orange);
  letter-spacing: .24em;
  text-transform: uppercase;
}

.page-contact .pc-hero__title {
  margin: 0 0 20px;
  max-width: 16ch;
  letter-spacing: -.02em;
}

.page-contact .pc-hero__lede {
  margin: 0 0 clamp(28px, 4vw, 48px);
  max-width: 62ch;
}

.page-contact .pc-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .pc-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .pc-hero__fact-num {
  font-size: clamp(20px, 2.8vw, 26px);
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .pc-hero__fact-label {
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--pc-muted);
}

/* ── 联系渠道 ── */
.page-contact .pc-channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-contact .pc-channel {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-contact .pc-channel__value {
  display: block;
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.page-contact a.pc-channel__value:hover,
.page-contact a.pc-channel__value:focus-visible {
  color: var(--orange);
}

.page-contact .pc-channel__value--mail {
  font-size: clamp(15px, 1.6vw, 19px);
  word-break: break-all;
}

.page-contact .pc-channel__value--addr {
  font-size: clamp(17px, 1.9vw, 21px);
  line-height: 1.5;
}

/* ── 常见来信 ── */
.page-contact .pc-topics__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
}

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

.page-contact .pc-topic {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 16px;
  padding-block: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--pc-rule);
}

.page-contact .pc-topic:last-child {
  border-bottom: 1px solid var(--pc-rule);
}

.page-contact .pc-topic__num {
  padding-top: 4px;
  font-size: 14px;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-contact .pc-topic h3 {
  margin: 0 0 8px;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 600;
  color: var(--ink);
}

.page-contact .pc-topic p {
  margin: 0;
  max-width: 52ch;
  line-height: 1.78;
  color: var(--ink-2);
}

.page-contact .pc-topics__figure {
  margin: 0;
}

.page-contact .pc-topics__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

/* ── 相关入口 ── */
.page-contact .pc-split__grid {
  gap: 20px;
}

.page-contact .pc-jump {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  transition: transform .32s var(--ease), box-shadow .32s var(--ease);
}

.page-contact .pc-jump:hover,
.page-contact .pc-jump:focus-visible {
  transform: translateY(-3px);
  box-shadow: var(--shadow-2);
}

.page-contact .pc-jump__cue {
  margin-top: auto;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--orange);
}

/* ── 结尾 ── */
.page-contact .pc-close__frame {
  overflow: hidden;
  border-radius: var(--r-lg);
  background: var(--blue-2);
  box-shadow: var(--shadow-1);
}

.page-contact .pc-close__media {
  display: block;
  width: 100%;
  height: clamp(180px, 28vw, 340px);
  object-fit: cover;
}

.page-contact .pc-close__body {
  padding: clamp(26px, 5vw, 52px);
  color: var(--snow);
}

.page-contact .pc-close__body .index-num {
  color: var(--orange-2);
  letter-spacing: .2em;
}

.page-contact .pc-close__title {
  margin: 12px 0 16px;
  color: var(--snow);
}

.page-contact .pc-close__body p {
  margin: 0 0 clamp(24px, 3vw, 34px);
  max-width: 58ch;
  line-height: 1.78;
  color: var(--on-dark);
}

.page-contact .pc-close__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ── 响应式 ── */
@media (min-width: 640px) {
  .page-contact .pc-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .pc-hero__facts li {
    padding-inline: 26px;
  }

  .page-contact .pc-hero__facts li:first-child {
    padding-left: 0;
  }

  .page-contact .pc-hero__facts li + li {
    border-left: 1px solid var(--pc-rule);
  }
}

@media (min-width: 780px) {
  .page-contact .pc-channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 920px) {
  .page-contact .pc-topics__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .pc-topics__figure {
    position: sticky;
    top: 120px;
  }
}
</main>