.page-contact {
  --ct-gap: clamp(1.25rem, 3vw, 2.5rem);
  --ct-space: clamp(3rem, 7vw, 6.5rem);
  --ct-ink-soft: rgba(27, 22, 17, 0.74);
  --ct-ink-faint: rgba(27, 22, 17, 0.5);
  background-color: var(--rb-cream);
  background-image:
    linear-gradient(rgba(27, 22, 17, 0.042) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 22, 17, 0.042) 1px, transparent 1px);
  background-size: 64px 64px;
  color: var(--rb-ink);
  font-family: var(--rb-font-sans);
  overflow-x: hidden;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  margin: 0;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 300;
}

.page-contact p,
.page-contact dl,
.page-contact dd,
.page-contact dt,
.page-contact ol,
.page-contact ul,
.page-contact li,
.page-contact figure {
  margin: 0;
  padding: 0;
}

.page-contact ul,
.page-contact ol {
  list-style: none;
}

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

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding-block: clamp(1.75rem, 4vw, 3rem) clamp(2rem, 5vw, 4rem);
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--ct-gap);
  margin-top: clamp(1.75rem, 4vw, 3.25rem);
}

.page-contact .ct-hero__index,
.page-contact .ct-head__index,
.page-contact .ct-feedback__index {
  color: var(--rb-orange);
  margin-bottom: 0.9rem;
}

.page-contact .ct-hero__title {
  font-size: clamp(2.35rem, 8.4vw, 5.25rem);
  font-weight: 300;
  line-height: 1.02;
}

.page-contact .ct-hero__lede {
  margin-top: clamp(1rem, 2.4vw, 1.6rem);
  max-width: 34em;
  color: var(--ct-ink-soft);
  font-size: clamp(1rem, 2.3vw, 1.075rem);
  line-height: 1.78;
}

.page-contact .ct-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: clamp(1.4rem, 3vw, 2rem);
}

.page-contact .ct-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1.5rem, 5vw, 3.25rem);
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
  padding-top: clamp(1.25rem, 3vw, 1.75rem);
  border-top: 1px solid var(--rb-line);
}

.page-contact .ct-hero__stat dt {
  font-family: var(--rb-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--rb-graphite);
  margin-bottom: 0.4rem;
}

.page-contact .ct-hero__stat dd {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
}

.page-contact .ct-hero__unit {
  font-size: 0.85rem;
  color: var(--rb-graphite);
  letter-spacing: 0.08em;
}

.page-contact .ct-hero__panel {
  border-radius: var(--rb-r-lg);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.page-contact .ct-hero__panel-label {
  color: var(--rb-cyan);
}

.page-contact .ct-hero__panel-title {
  font-family: var(--rb-font-num);
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--rb-paper);
  line-height: 1.1;
  margin-bottom: 0.4rem;
}

.page-contact .ct-facts {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  margin-top: 0.6rem;
}

.page-contact .ct-facts__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.25rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--rb-line-inv);
}

.page-contact .ct-facts__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .ct-hero__panel .rb-contact__k {
  font-family: var(--rb-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(245, 238, 227, 0.62);
}

.page-contact .ct-hero__panel .rb-contact__v,
.page-contact .ct-facts__v {
  color: var(--rb-paper);
  font-family: var(--rb-font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  word-break: break-word;
}

.page-contact .ct-hero__note {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rb-line-inv);
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(245, 238, 227, 0.72);
}

/* ---------- 通用区块标题 ---------- */
.page-contact .ct-head {
  max-width: 46em;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}

.page-contact .ct-head__title {
  font-size: clamp(1.75rem, 5.2vw, 3.1rem);
}

.page-contact .ct-head__lede {
  margin-top: 0.9rem;
  color: var(--ct-ink-soft);
  font-size: 1rem;
  line-height: 1.75;
}

/* ---------- 合作类型 ---------- */
.page-contact .ct-partners__grid {
  gap: var(--ct-gap);
}

.page-contact .ct-partner {
  border-radius: var(--rb-r-lg);
  padding: clamp(1.4rem, 3.4vw, 2.15rem);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  background: var(--rb-paper);
}

.page-contact .ct-partner__tag {
  align-self: flex-start;
}

.page-contact .ct-partner__title {
  font-size: clamp(1.25rem, 3.4vw, 1.65rem);
  font-weight: 500;
  line-height: 1.28;
}

.page-contact .ct-partner__body {
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--ct-ink-soft);
  flex: 1;
}

.page-contact .ct-partner__meta {
  font-family: var(--rb-font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--rb-graphite);
  padding-top: 0.85rem;
  border-top: 1px solid var(--rb-line);
}

.page-contact .rb-card--ink .ct-partner__body,
.page-contact .rb-card--maroon .ct-partner__body {
  color: rgba(245, 238, 227, 0.78);
}

.page-contact .rb-card--ink .ct-partner__title,
.page-contact .rb-card--maroon .ct-partner__title {
  color: var(--rb-paper);
}

.page-contact .rb-card--ink .ct-partner__meta,
.page-contact .rb-card--maroon .ct-partner__meta {
  color: rgba(245, 238, 227, 0.6);
  border-top-color: var(--rb-line-inv);
}

/* ---------- 联系方式 + 合作流程 ---------- */
.page-contact .ct-workbench__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
}

.page-contact .ct-channels {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--rb-line);
}

.page-contact .ct-channel {
  padding: clamp(1.1rem, 2.8vw, 1.55rem) 0;
  border-bottom: 1px solid var(--rb-line);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.page-contact .ct-channel__key {
  font-family: var(--rb-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--rb-red);
}

.page-contact .ct-channel__value {
  font-family: var(--rb-font-mono);
  font-size: clamp(0.95rem, 2.6vw, 1.1rem);
  font-weight: 500;
  color: var(--rb-ink);
  word-break: break-word;
  line-height: 1.5;
}

.page-contact .ct-channel__value--wrap {
  font-size: clamp(0.9rem, 2.3vw, 1rem);
  line-height: 1.65;
}

.page-contact .ct-channel__hint {
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--ct-ink-soft);
}

.page-contact .ct-workbench__figure {
  margin-top: clamp(1.5rem, 3.5vw, 2.25rem);
  border-radius: var(--rb-r-md);
  overflow: hidden;
}

.page-contact .ct-workbench__figure img {
  width: 100%;
  object-fit: cover;
  aspect-ratio: 10 / 7;
}

.page-contact .ct-steps {
  border-top: 1px solid var(--rb-line);
}

.page-contact .ct-step {
  position: relative;
  padding: clamp(1.1rem, 2.8vw, 1.5rem) 0 clamp(1.1rem, 2.8vw, 1.5rem) 3.6rem;
  border-bottom: 1px solid var(--rb-line);
}

.page-contact .ct-step__num {
  position: absolute;
  left: 0;
  top: clamp(1rem, 2.6vw, 1.3rem);
  width: 2.45rem;
  height: 2.45rem;
  display: grid;
  place-items: center;
  border-radius: var(--rb-r-pill);
  background: var(--rb-ink);
  color: var(--rb-cream);
  font-family: var(--rb-font-num);
  font-size: 1rem;
  letter-spacing: 0.04em;
  line-height: 1;
}

.page-contact .ct-step__title {
  font-size: clamp(1.05rem, 2.8vw, 1.28rem);
  font-weight: 500;
  margin-bottom: 0.55rem;
}

.page-contact .ct-step__body {
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--ct-ink-soft);
}

/* ---------- 纠错反馈 ---------- */
.page-contact .ct-feedback__box {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  padding: clamp(1.5rem, 4.5vw, 3rem);
  border-radius: var(--rb-r-lg);
  background: var(--rb-paper);
  border-left: 6px solid var(--rb-red);
}

.page-contact .ct-feedback__title {
  font-size: clamp(1.4rem, 4vw, 2.1rem);
  margin-bottom: 0.9rem;
}

.page-contact .ct-feedback__body {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--ct-ink-soft);
  max-width: 42em;
}

.page-contact .ct-feedback__label {
  font-family: var(--rb-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--rb-graphite);
  margin-bottom: 0.85rem;
}

.page-contact .ct-feedback__list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.page-contact .ct-feedback__list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--rb-ink);
}

.page-contact .ct-feedback__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--rb-r-pill);
  background: var(--rb-cyan);
}

.page-contact .ct-feedback__mail {
  margin-top: 1.1rem;
  padding-top: 0.9rem;
  border-top: 1px dashed var(--rb-line-strong);
  font-family: var(--rb-font-mono);
  font-size: 0.82rem;
  word-break: break-word;
  color: var(--rb-navy);
}

/* ---------- 到访与位置 ---------- */
.page-contact .ct-visit__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 5vw, 3.5rem);
  align-items: start;
}

.page-contact .ct-visit__body {
  margin-top: 1rem;
  max-width: 40em;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--ct-ink-soft);
}

.page-contact .ct-visit__list {
  display: flex;
  flex-direction: column;
  margin-top: clamp(1.25rem, 3vw, 1.85rem);
  border-top: 1px solid var(--rb-line);
}

.page-contact .ct-visit__list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.3rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--rb-line);
}

.page-contact .ct-visit__k {
  font-family: var(--rb-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--rb-orange);
}

.page-contact .ct-visit__v {
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--rb-ink);
}

.page-contact .ct-visit__figure {
  border-radius: var(--rb-r-md);
  overflow: hidden;
}

.page-contact .ct-visit__figure img {
  width: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

/* ---------- 常见问题 ---------- */
.page-contact .ct-faq__list {
  border-top: 1px solid var(--rb-line);
}

.page-contact .ct-faq__item {
  border-bottom: 1px solid var(--rb-line);
}

.page-contact .ct-faq__q {
  cursor: pointer;
  list-style: none;
  padding: clamp(1rem, 2.6vw, 1.35rem) 2.6rem clamp(1rem, 2.6vw, 1.35rem) 0;
  font-size: clamp(1rem, 2.7vw, 1.15rem);
  font-weight: 500;
  line-height: 1.5;
  position: relative;
  color: var(--rb-ink);
}

.page-contact .ct-faq__q::-webkit-details-marker {
  display: none;
}

.page-contact .ct-faq__q::after {
  content: "+";
  position: absolute;
  right: 0.4rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--rb-font-num);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--rb-red);
  transition: transform 0.18s ease;
}

.page-contact .ct-faq__item[open] .ct-faq__q::after {
  transform: translateY(-50%) rotate(45deg);
}

.page-contact .ct-faq__q:focus-visible {
  outline: 2px solid var(--rb-cyan);
  outline-offset: 3px;
  border-radius: var(--rb-r-xs);
}

.page-contact .ct-faq__a {
  padding: 0 clamp(0.5rem, 2vw, 2.5rem) clamp(1.1rem, 2.8vw, 1.5rem) 0;
  max-width: 44em;
  font-size: 0.93rem;
  line-height: 1.82;
  color: var(--ct-ink-soft);
}

.page-contact .ct-faq__a .rb-link {
  color: var(--rb-navy);
}

/* ---------- 悬停与焦点 ---------- */
.page-contact .ct-partner,
.page-contact .ct-hero__panel,
.page-contact .ct-feedback__box,
.page-contact .ct-visit__figure,
.page-contact .ct-workbench__figure {
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.page-contact .ct-partner:hover,
.page-contact .ct-feedback__box:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(27, 22, 17, 0.13);
}

.page-contact .ct-partner:focus-within,
.page-contact .ct-channel:focus-within,
.page-contact .ct-step:focus-within {
  outline: 2px solid var(--rb-cyan);
  outline-offset: 4px;
  border-radius: var(--rb-r-xs);
}

.page-contact .ct-hero__panel .rb-btn:focus-visible,
.page-contact .ct-hero__actions .rb-btn:focus-visible {
  outline: 2px solid var(--rb-cyan);
  outline-offset: 3px;
}

.page-contact .ct-hero__panel:focus-within {
  outline-color: var(--rb-orange);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-facts__row {
    grid-template-columns: minmax(6.5rem, auto) minmax(0, 1fr);
    align-items: baseline;
    gap: 1rem;
  }

  .page-contact .ct-visit__list li {
    grid-template-columns: minmax(7rem, 8.5rem) minmax(0, 1fr);
    align-items: baseline;
    gap: 1.25rem;
  }

  .page-contact .ct-feedback__box {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }
}

@media (min-width: 940px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
    gap: clamp(2rem, 4vw, 3.75rem);
  }

  .page-contact .ct-workbench__grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: start;
  }

  .page-contact .ct-visit__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-contact .ct-visit__figure {
    position: sticky;
    top: calc(var(--rb-header-h) + 1.5rem);
  }
}

@media (min-width: 1200px) {
  .page-contact .ct-partners__grid .ct-partner {
    min-height: 100%;
  }
}

@media (max-width: 719px) {
  .page-contact .ct-partner__meta {
    letter-spacing: 0.03em;
  }

  .page-contact .ct-step {
    padding-left: 3.1rem;
  }

  .page-contact .ct-step__num {
    width: 2.2rem;
    height: 2.2rem;
    font-size: 0.9rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-partner,
  .page-contact .ct-hero__panel,
  .page-contact .ct-feedback__box,
  .page-contact .ct-visit__figure,
  .page-contact .ct-workbench__figure,
  .page-contact .ct-faq__q::after {
    transition: none;
  }

  .page-contact .ct-partner:hover,
  .page-contact .ct-feedback__box:hover {
    transform: none;
  }
}