.page-contact {
  --contact-ink-on-warm: #071B2F;
  --contact-gap: clamp(16px, 2.4vw, 28px);
  padding-block: clamp(16px, 3vw, 32px) clamp(56px, 9vw, 110px);
}

/* ---------- 首屏：对角错位与橙色承载块 ---------- */
.page-contact .contact-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  padding: clamp(16px, 3vw, 40px) 0 clamp(32px, 5vw, 76px);
}

.page-contact .contact-hero-copy {
  min-width: 0;
}

.page-contact .contact-hero-title {
  font-family: var(--serif);
  color: var(--serif-ink);
  font-weight: 600;
  font-size: clamp(2rem, 4.6vw, 3.4rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin: 12px 0 20px;
  max-width: 18ch;
}

.page-contact .contact-hero-lede {
  max-width: 52ch;
  color: var(--muted);
  font-size: clamp(1rem, 1.15vw, 1.0625rem);
  margin: 0 0 24px;
}

.page-contact .num {
  font-family: var(--mono);
  font-weight: 700;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.page-contact .contact-hero-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: clamp(22px, 3.2vw, 38px);
  border-radius: var(--radius-l);
  background: linear-gradient(152deg, var(--orange) 0%, var(--orange-soft) 56%, #FFCDA9 100%);
  color: var(--contact-ink-on-warm);
}

.page-contact .contact-hero-glow {
  position: absolute;
  top: -16%;
  right: -14%;
  width: 84%;
  height: auto;
  max-width: none;
  opacity: 0.26;
  z-index: 0;
  pointer-events: none;
}

.page-contact .contact-hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .contact-hero-inner + .contact-hero-inner {
  padding-top: 16px;
  border-top: 1px solid rgba(7, 27, 47, 0.22);
}

.page-contact .contact-hero-label {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.72;
}

.page-contact .contact-hero-value {
  margin: 0;
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(1.0625rem, 1.7vw, 1.4rem);
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  word-break: break-all;
}

.page-contact .contact-hero-hint {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.6;
  opacity: 0.78;
}

.page-contact .contact-copy {
  align-self: flex-start;
  margin-top: 10px;
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid rgba(7, 27, 47, 0.34);
  background: rgba(255, 255, 255, 0.2);
  color: var(--contact-ink-on-warm);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-contact .contact-copy:hover,
.page-contact .contact-copy:focus-visible {
  border-color: var(--contact-ink-on-warm);
  background: rgba(255, 255, 255, 0.36);
}

/* ---------- 三张高度不等的通道卡片 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--contact-gap);
  align-items: start;
}

.page-contact .channel-card {
  position: relative;
  overflow: hidden;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-contact .channel-card:hover {
  border-color: var(--cyan);
  transform: translateY(-3px);
}

.page-contact .channel-card .card-text {
  margin: 0;
}

.page-contact .channel-card .card-foot {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-contact .channel-card--letter > * {
  position: relative;
  z-index: 1;
}

.page-contact .channel-bg {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 46%;
  object-fit: cover;
  opacity: 0.15;
  pointer-events: none;
}

.page-contact .channel-card--letter > .channel-bg {
  z-index: 0;
}

.page-contact .facts {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-contact .fact-row {
  display: grid;
  grid-template-columns: minmax(0, 88px) minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 10px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .fact-term {
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--muted);
}

.page-contact .fact-value {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--ink);
  word-break: break-word;
}

/* ---------- 四类反馈的处理节奏 ---------- */
.page-contact .pace-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .pace-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .pace-index {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-contact .pace-title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--serif-ink);
}

.page-contact .pace-text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--muted);
  max-width: 62ch;
}

.page-contact .pace-text a {
  color: var(--cyan);
}

.page-contact .pace-time {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--orange-soft);
  font-variant-numeric: tabular-nums;
}

/* ---------- 合作共建通栏 ---------- */
.page-contact .coop-band {
  display: grid;
  gap: 22px;
  padding: clamp(24px, 4vw, 48px);
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(33, 230, 210, 0.13) 0%, transparent 58%),
    linear-gradient(120deg, var(--panel) 0%, var(--panel-deep) 100%);
}

.page-contact .coop-title {
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
  max-width: 24ch;
}

.page-contact .coop-text {
  margin: 14px 0 0;
  color: var(--muted);
  max-width: 60ch;
}

.page-contact .coop-cta {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 22px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(33, 230, 210, 0.08);
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-contact .coop-cta:hover,
.page-contact .coop-cta:focus-visible {
  border-color: var(--cyan);
  background: rgba(33, 230, 210, 0.18);
}

.page-contact .coop-arrow {
  color: var(--cyan);
  transition: transform 0.18s var(--ease);
}

.page-contact .coop-cta:hover .coop-arrow,
.page-contact .coop-cta:focus-visible .coop-arrow {
  transform: translateX(5px);
}

/* ---------- 高频问题快捷入口 ---------- */
.page-contact .quick-list {
  border-top: 1px solid var(--line);
}

.page-contact .quick-item a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 32px;
  align-items: center;
  gap: 4px 16px;
  padding: 18px 6px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--ink);
  text-decoration: none;
  transition: background 0.18s var(--ease);
}

.page-contact .quick-item a:hover,
.page-contact .quick-item a:focus-visible {
  background: rgba(33, 230, 210, 0.07);
}

.page-contact .quick-kicker {
  grid-column: 1;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .quick-title {
  grid-column: 1;
  font-size: 1.0625rem;
  line-height: 1.5;
}

.page-contact .quick-arrow {
  grid-column: 2;
  grid-row: 1 / span 2;
  justify-self: end;
  color: var(--muted);
  transition: transform 0.18s var(--ease), color 0.18s var(--ease);
}

.page-contact .quick-item a:hover .quick-arrow,
.page-contact .quick-item a:focus-visible .quick-arrow {
  transform: translateX(5px);
  color: var(--cyan);
}

.page-contact .note {
  margin-top: 16px;
  max-width: 62ch;
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-contact .contact-hero {
    padding-top: clamp(24px, 3.6vw, 52px);
  }
}

@media (min-width: 820px) {
  .page-contact .pace-item {
    grid-template-columns: 64px minmax(0, 200px) minmax(0, 1fr) 132px;
    gap: clamp(16px, 2.4vw, 32px);
    align-items: start;
  }

  .page-contact .pace-time {
    text-align: right;
  }
}

@media (min-width: 880px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    gap: clamp(32px, 5vw, 76px);
    align-items: start;
  }

  .page-contact .contact-hero-card {
    margin-top: clamp(28px, 4vw, 64px);
    min-height: 380px;
    justify-content: flex-end;
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(18px, 2.2vw, 28px);
  }

  .page-contact .channel-card--mail {
    padding-bottom: 54px;
  }

  .page-contact .channel-card--phone {
    padding-bottom: 96px;
  }

  .page-contact .channel-card--letter {
    padding-bottom: 30px;
  }
}

@media (min-width: 900px) {
  .page-contact .coop-band {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 44px;
  }

  .page-contact .coop-cta {
    justify-self: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .contact-copy,
  .page-contact .coop-cta,
  .page-contact .coop-arrow,
  .page-contact .quick-item a,
  .page-contact .quick-arrow {
    transition: none;
  }

  .page-contact .channel-card:hover {
    transform: none;
  }

  .page-contact .coop-cta:hover .coop-arrow,
  .page-contact .quick-item a:hover .quick-arrow {
    transform: none;
  }
}