.page-contact {
  --page-gutter: clamp(18px, 3.5vw, 42px);
  --page-radius-lg: 28px;
  --page-radius-md: 18px;
  overflow-x: clip;
}

.page-contact .breadcrumbs {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 26px var(--page-gutter) 0;
}

/* ===== 首屏封面 ===== */
.page-contact .contact-hero {
  padding: clamp(36px, 6vw, 72px) var(--page-gutter) 0;
}

.page-contact .contact-hero__inner {
  max-width: var(--container-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: center;
  position: relative;
}

.page-contact .contact-hero__inner::after {
  content: "";
  position: absolute;
  right: -32px;
  top: -34px;
  width: 110px;
  height: 110px;
  border: 22px solid rgba(255, 90, 54, 0.14);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-hero__copy {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.6rem, 7vw, 4.8rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin: 12px 0 18px;
}

.page-contact .contact-hero__lede {
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.85;
  max-width: 40em;
  margin-bottom: 22px;
}

.page-contact .contact-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-bottom: 26px;
}

.page-contact .contact-hero__art {
  position: relative;
  border-radius: var(--page-radius-lg);
  background: var(--surface-overlay);
  box-shadow: var(--shadow-paper);
  border: 2px solid var(--accent-yellow);
  padding: 8px;
}

.page-contact .contact-hero__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: calc(var(--page-radius-lg) - 8px);
}

/* ===== 章节标题 ===== */
.page-contact .section-heading {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 26px;
}

.page-contact .section-heading .chapter-number {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--accent-blue);
  flex-shrink: 0;
}

.page-contact .section-heading h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  color: var(--text-primary);
}

.page-contact .section-heading .section-label {
  display: block;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-orange);
}

/* ===== 联系渠道 ===== */
.page-contact .contact-channels {
  padding-top: clamp(64px, 9vw, 120px);
  padding-bottom: clamp(48px, 7vw, 80px);
}

.page-contact .contact-channels__intro {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.8;
  max-width: 38em;
  margin: 0 0 32px;
}

.page-contact .contact-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .channel-card {
  display: block;
  position: relative;
  background: var(--surface-overlay);
  border: 1px solid var(--border-muted);
  border-radius: var(--page-radius-md);
  padding: 26px 24px 24px;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow-paper);
  overflow: hidden;
  transition: transform 0.3s var(--transition-timing), box-shadow 0.3s var(--transition-timing);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
}

.page-contact .channel-card--mail::before {
  background: var(--accent-blue);
}

.page-contact .channel-card--phone::before {
  background: var(--accent-orange);
}

.page-contact .channel-card--address::before {
  background: var(--accent-yellow);
}

.page-contact .channel-card__index {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  display: block;
  margin-bottom: 12px;
}

.page-contact .channel-card__label {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.page-contact .channel-card__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2.6vw, 1.4rem);
  line-height: 1.4;
  overflow-wrap: anywhere;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.page-contact .channel-card__action {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-blue);
  border-bottom: 1px dashed rgba(26, 58, 92, 0.4);
  padding-bottom: 4px;
}

.page-contact .channel-card--phone .channel-card__action {
  color: var(--accent-orange);
  border-bottom-color: rgba(255, 90, 54, 0.4);
}

.page-contact .channel-card__details {
  margin-top: 12px;
  border-top: 1px solid var(--border-muted);
  padding-top: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.page-contact .channel-card__details summary {
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
}

.page-contact .channel-card__details summary::-webkit-details-marker {
  display: none;
}

.page-contact .channel-card__details summary::before {
  content: "+";
  font-weight: 700;
  color: var(--accent-orange);
}

.page-contact .channel-card__details[open] summary::before {
  content: "−";
}

.page-contact .channel-card__details p {
  margin-top: 10px;
  line-height: 1.7;
}

/* ===== 地图区域 ===== */
.page-contact .contact-location {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
  padding-top: clamp(40px, 6vw, 72px);
  padding-bottom: clamp(56px, 8vw, 100px);
}

.page-contact .contact-location__map {
  border-radius: var(--page-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-paper);
  background: var(--accent-blue);
}

.page-contact .contact-location__img {
  display: block;
  width: 100%;
  height: auto;
  min-height: 140px;
  object-fit: cover;
}

.page-contact .contact-location__caption {
  padding: 4px 0;
}

.page-contact .contact-location__caption h3 {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 3vw, 2rem);
  margin: 10px 0 14px;
  color: var(--text-primary);
}

.page-contact .contact-location__caption p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 32em;
  margin-bottom: 22px;
}

/* ===== 响应承诺 ===== */
.page-contact .contact-response {
  padding-top: 0;
  padding-bottom: clamp(56px, 8vw, 100px);
}

.page-contact .contact-response__panel {
  margin-top: 34px;
  background: linear-gradient(135deg, #1a3a5c 0%, #22374a 60%, #2a3f52 100%);
  border-radius: var(--page-radius-lg);
  padding: clamp(28px, 5vw, 54px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  color: #f7f1e8;
  position: relative;
  overflow: hidden;
}

.page-contact .contact-response__panel::after {
  content: "";
  position: absolute;
  right: -50px;
  bottom: -80px;
  width: 200px;
  height: 200px;
  border: 2px dashed rgba(255, 209, 102, 0.5);
  border-radius: 50%;
  pointer-events: none;
}

.page-contact .response-pledge {
  position: relative;
  z-index: 1;
}

.page-contact .response-pledge__time {
  font-family: var(--font-mono);
  font-size: clamp(3rem, 10vw, 5rem);
  font-weight: 700;
  color: var(--accent-yellow);
  line-height: 1;
  display: block;
  letter-spacing: -0.04em;
}

.page-contact .response-pledge__unit {
  font-size: 0.4em;
  color: #f7f1e8;
  vertical-align: top;
  margin-left: 4px;
}

.page-contact .response-pledge h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  margin: 14px 0 10px;
  color: #f7f1e8;
}

.page-contact .response-pledge p {
  color: rgba(247, 241, 232, 0.8);
  line-height: 1.8;
  font-size: 0.95rem;
}

.page-contact .response-flow {
  position: relative;
  z-index: 1;
}

.page-contact .response-flow__list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.page-contact .response-flow__list li {
  position: relative;
  background: rgba(247, 241, 232, 0.1);
  border: 1px solid rgba(247, 241, 232, 0.2);
  border-radius: 10px;
  padding: 12px 14px 12px 46px;
  font-size: 0.9rem;
  color: #f7f1e8;
  line-height: 1.5;
  min-height: 46px;
  display: flex;
  align-items: center;
}

.page-contact .response-flow__num {
  position: absolute;
  left: 12px;
  font-family: var(--font-mono);
  color: var(--accent-yellow);
  font-size: 0.85rem;
  font-weight: 700;
}

/* ===== 商务合作 ===== */
.page-contact .contact-business {
  padding-top: 0;
  padding-bottom: clamp(56px, 8vw, 100px);
}

.page-contact .contact-business__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-contact .business-topics {
  background: var(--surface-overlay);
  border: 1px solid var(--border-muted);
  border-radius: var(--page-radius-md);
  padding: 26px 28px;
  position: relative;
  box-shadow: var(--shadow-paper);
}

.page-contact .business-topics::before {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  right: 24px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-orange), var(--accent-yellow));
}

.page-contact .business-topics h3,
.page-contact .business-note h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.page-contact .business-topics__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-contact .business-topics__list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-primary);
}

.page-contact .business-topics__list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent-orange);
  font-family: var(--font-mono);
}

.page-contact .business-note {
  background: var(--bg-primary);
  border: 1px dashed var(--accent-blue);
  border-radius: var(--page-radius-md);
  padding: 26px 28px;
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: 0.95rem;
  position: relative;
}

.page-contact .business-note__foot {
  border-top: 1px solid var(--border-muted);
  margin-top: 18px;
  padding-top: 14px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ===== 常见去向 ===== */
.page-contact .contact-routes {
  padding-bottom: clamp(56px, 8vw, 100px);
}

.page-contact .contact-routes__intro {
  color: var(--text-secondary);
  margin: 0 0 28px;
}

.page-contact .contact-routes__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-contact .route-card {
  display: block;
  background: var(--surface-overlay);
  border: 1px solid var(--border-muted);
  border-radius: var(--page-radius-md);
  padding: 26px 24px;
  text-decoration: none;
  color: var(--text-primary);
  box-shadow: var(--shadow-paper);
  position: relative;
  transition: transform 0.3s var(--transition-timing), box-shadow 0.3s var(--transition-timing);
}

.page-contact .route-card__tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-orange);
  display: block;
  margin-bottom: 12px;
}

.page-contact .route-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin: 0 0 10px;
  color: var(--text-primary);
}

.page-contact .route-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0 0 16px;
}

.page-contact .route-card__link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-blue);
  border-bottom: 1px solid rgba(26, 58, 92, 0.35);
  padding-bottom: 2px;
}

.page-contact .contact-routes__note {
  margin-top: 30px;
  padding: 20px 22px;
  background: #fffbf0;
  border: 1px solid var(--border-muted);
  border-radius: var(--page-radius-md);
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== 悬停与焦点状态 ===== */
.page-contact .channel-card:hover,
.page-contact .route-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 44px rgba(30, 26, 23, 0.09);
}

.page-contact .channel-card:focus-visible,
.page-contact .route-card:focus-visible,
.page-contact .btn:focus-visible,
.page-contact .channel-card__details summary:focus-visible {
  outline: 3px solid var(--accent-orange);
  outline-offset: 2px;
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .page-contact .contact-channels__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .contact-location {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .page-contact .contact-response__panel {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .page-contact .contact-business__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .contact-routes__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-channels__grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .page-contact .contact-channels__intro,
  .page-contact .contact-routes__intro {
    max-width: 36em;
  }
}