.page-contact {
  --pc-rule: rgba(11, 61, 46, 0.16);
  --pc-rule-soft: rgba(11, 61, 46, 0.09);
  --pc-ink-soft: rgba(20, 24, 26, 0.78);
  --pc-ink-mute: rgba(20, 24, 26, 0.62);
  background: var(--paper);
  color: var(--carbon);
}

.page-contact .contact-hero {
  padding-top: clamp(30px, 5vw, 64px);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  list-style: none;
  margin: 0 0 clamp(26px, 5vw, 56px);
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  color: rgba(11, 61, 46, 0.72);
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  margin: 0 0.6em;
  opacity: 0.45;
}

.page-contact .breadcrumb a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  border-bottom-color: currentColor;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-h1 {
  margin: 0 0 clamp(18px, 3vw, 28px);
  max-width: 15ch;
  font-size: clamp(2rem, 6.4vw, 3.6rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.022em;
  color: var(--green-deep);
}

.page-contact .contact-lead {
  margin: 0 0 clamp(42px, 7vw, 82px);
  max-width: 62ch;
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  line-height: 1.82;
  color: var(--pc-ink-soft);
}

/* ---------- 大字联系方式 ---------- */
.page-contact .contact-lines {
  display: grid;
  border-top: 2px solid var(--green);
  border-bottom: 2px solid var(--green);
}

.page-contact .contact-line {
  display: grid;
  gap: 10px;
  padding: clamp(24px, 4.2vw, 38px) 0;
}

.page-contact .contact-line + .contact-line {
  border-top: 1px solid var(--pc-rule);
}

.page-contact .contact-line__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.page-contact .contact-line__v {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(0.95rem, 4.1vw, 2.35rem);
  line-height: 1.2;
  letter-spacing: -0.022em;
  font-variant-numeric: tabular-nums;
  color: var(--green-deep);
  overflow-wrap: anywhere;
  user-select: all;
  -webkit-user-select: all;
  cursor: copy;
}

.page-contact .contact-line__n {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--pc-ink-mute);
}

/* ---------- 章节通用 ---------- */
.page-contact .pc-num {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--orange);
}

.page-contact h2 {
  margin: 0 0 clamp(14px, 2vw, 20px);
  max-width: 22ch;
  font-size: clamp(1.55rem, 3.6vw, 2.35rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--green-deep);
}

.page-contact .pc-body {
  margin: 0 0 clamp(28px, 4vw, 46px);
  max-width: 64ch;
  font-size: 1.0625rem;
  line-height: 1.78;
  color: var(--pc-ink-soft);
}

.page-contact .pc-link {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(30, 144, 255, 0.4);
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-contact .pc-link:hover,
.page-contact .pc-link:focus-visible {
  color: var(--green);
  border-bottom-color: var(--green);
}

.page-contact .contact-head {
  max-width: 60ch;
  margin-bottom: clamp(30px, 4.6vw, 54px);
}

.page-contact .contact-head__note {
  margin: 0;
  max-width: 56ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--pc-ink-soft);
}

/* ---------- 三栏用途 ---------- */
.page-contact .purpose-grid {
  display: grid;
  border-top: 2px solid var(--green);
}

.page-contact .purpose-col {
  padding: clamp(24px, 3.6vw, 32px) 0 clamp(26px, 4vw, 40px);
  border-bottom: 1px solid var(--pc-rule);
}

.page-contact .purpose-col:last-child {
  border-bottom: none;
}

.page-contact .purpose-col__num {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: rgba(11, 61, 46, 0.5);
}

.page-contact .purpose-col h3 {
  margin: 0 0 12px;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--green);
}

.page-contact .purpose-col p {
  margin: 0;
  max-width: 40ch;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--pc-ink-soft);
}

/* ---------- 勘误模板 ---------- */
.page-contact .tpl-pre {
  margin: 0 0 clamp(22px, 3vw, 30px);
  padding: clamp(24px, 3.8vw, 40px) clamp(20px, 3.4vw, 44px);
  background: var(--green-deep);
  color: var(--paper);
  border-left: 6px solid var(--orange);
  font-family: var(--font-mono);
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  font-weight: 600;
  line-height: 2.2;
  letter-spacing: 0.01em;
  white-space: pre-wrap;
  overflow-x: auto;
  user-select: all;
  -webkit-user-select: all;
  cursor: text;
}

.page-contact .tpl-pre:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

.page-contact .tpl-note {
  margin: 0;
  max-width: 68ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--pc-ink-mute);
}

/* ---------- 处理节点 ---------- */
.page-contact .flow {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--green);
}

.page-contact .flow__step {
  padding: clamp(24px, 3.4vw, 30px) 0 clamp(24px, 3.6vw, 34px);
  border-bottom: 1px solid var(--pc-rule);
}

.page-contact .flow__step:last-child {
  border-bottom: none;
}

.page-contact .flow__num {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--orange);
}

.page-contact .flow__step h3 {
  margin: 0 0 10px;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--green-deep);
}

.page-contact .flow__step p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--pc-ink-soft);
}

.page-contact .flow__note {
  margin: clamp(24px, 3.4vw, 34px) 0 0;
  padding-top: clamp(18px, 2.4vw, 24px);
  max-width: 62ch;
  border-top: 1px solid var(--pc-rule-soft);
  font-size: 0.875rem;
  line-height: 1.78;
  color: var(--pc-ink-mute);
}

/* ---------- 联系信息 ---------- */
.page-contact .detail-grid {
  display: grid;
  gap: clamp(30px, 4.4vw, 52px);
  margin-bottom: clamp(28px, 4vw, 46px);
}

.page-contact .detail-list {
  display: grid;
  margin: 0;
  border-top: 2px solid var(--green);
}

.page-contact .detail-item {
  display: grid;
  gap: 8px;
  padding: clamp(18px, 2.6vw, 26px) 0;
  border-bottom: 1px solid var(--pc-rule);
}

.page-contact .detail-item dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: rgba(11, 61, 46, 0.6);
}

.page-contact .detail-item dd {
  margin: 0;
  font-size: clamp(1rem, 2.1vw, 1.35rem);
  font-weight: 600;
  line-height: 1.45;
  color: var(--green-deep);
  overflow-wrap: anywhere;
}

.page-contact .detail-item dd.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.012em;
}

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

.page-contact .contact-figure .figure__frame {
  border: 2px solid var(--green);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.page-contact .contact-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .contact-figure figcaption {
  margin-top: 14px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--pc-ink-mute);
}

.page-contact .detail-note {
  margin: 0;
  max-width: 72ch;
  font-size: 0.9375rem;
  line-height: 1.82;
  color: var(--pc-ink-mute);
}

/* ---------- 底部通栏 ---------- */
.page-contact .contact-strip {
  position: relative;
  margin-top: clamp(56px, 9vw, 132px);
  overflow: hidden;
  background: var(--green-deep);
  aspect-ratio: 16 / 9;
}

.page-contact .contact-strip img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 768px) {
  .page-contact .purpose-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .purpose-col {
    padding: clamp(30px, 3.2vw, 42px) clamp(24px, 2.6vw, 36px) clamp(34px, 4vw, 48px) 0;
    border-bottom: none;
  }

  .page-contact .purpose-col + .purpose-col {
    padding-left: clamp(24px, 2.6vw, 36px);
    border-left: 1px solid var(--pc-rule);
  }

  .page-contact .flow {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-contact .flow__step {
    padding: clamp(26px, 3vw, 34px) clamp(18px, 2vw, 28px) clamp(26px, 3.2vw, 36px) 0;
    border-bottom: none;
  }

  .page-contact .flow__step + .flow__step {
    padding-left: clamp(18px, 2vw, 28px);
    border-left: 1px solid var(--pc-rule);
  }
}

@media (min-width: 1024px) {
  .page-contact .detail-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .page-contact .contact-line {
    gap: 12px;
  }
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .breadcrumb a,
  .page-contact .pc-link {
    transition: none;
  }
}
</main>