.page-contact {
  --contact-rule: rgba(168, 196, 218, 0.55);
  --contact-rule-dark: rgba(14, 42, 71, 0.14);
  display: block;
  padding-top: clamp(24px, 4vw, 44px);
  padding-bottom: clamp(80px, 11vw, 140px);
  background: var(--cream);
}

.page-contact .breadcrumbs {
  margin-bottom: clamp(32px, 5vw, 60px);
}

/* ---------- 主题声明 ---------- */
.page-contact .contact-intro {
  max-width: 62rem;
  margin-bottom: clamp(48px, 7vw, 92px);
}

.page-contact .contact-intro .label {
  margin: 0 0 18px;
  color: var(--moss);
}

.page-contact .contact-intro .display {
  margin: 0 0 24px;
  color: var(--navy);
  max-width: 18ch;
}

.page-contact .contact-lede {
  max-width: 62ch;
  margin: 0 0 16px;
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  line-height: 1.8;
  color: var(--stone);
}

.page-contact .contact-lede--sub {
  margin-bottom: 0;
  font-size: 0.95rem;
  color: var(--stone);
}

.page-contact .inline-link {
  color: var(--clay);
  text-decoration: none;
  border-bottom: 1px solid rgba(169, 66, 31, 0.42);
  transition: border-color 200ms var(--ease), color 200ms var(--ease);
}

.page-contact .inline-link:hover {
  border-bottom-color: var(--clay);
}

/* ---------- 两栏骨架 ---------- */
.page-contact .contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(44px, 6vw, 60px);
}

@media (min-width: 1000px) {
  .page-contact .contact-grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: 0;
  }

  .page-contact .contact-rail {
    padding-right: clamp(28px, 3vw, 46px);
    border-right: 1px solid var(--contact-rule);
  }

  .page-contact .contact-flow {
    padding-left: clamp(36px, 4vw, 64px);
  }
}

/* ---------- 左侧渠道栏 ---------- */
.page-contact .rail-title {
  margin: 0 0 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--moss);
}

.page-contact .rail-figure {
  margin: 0 0 30px;
  overflow: hidden;
  border: 1px solid var(--contact-rule);
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-mid) 100%);
  aspect-ratio: 3 / 2;
}

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

.page-contact .rail-block {
  padding: 18px 0 20px;
  border-top: 1px solid var(--contact-rule);
}

.page-contact .rail-block:last-of-type {
  border-bottom: 1px solid var(--contact-rule);
}

.page-contact .rail-key {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--moss);
}

.page-contact .rail-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(0.92rem, 1.2vw, 1.02rem);
  line-height: 1.65;
  letter-spacing: 0.01em;
  font-variant-numeric: tabular-nums;
  color: var(--navy);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .rail-value--wrap {
  font-size: clamp(0.88rem, 1.1vw, 0.96rem);
  line-height: 1.75;
}

.page-contact .rail-note {
  margin: 10px 0 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--stone);
}

.page-contact .copy-btn {
  display: inline-flex;
  align-items: center;
  margin-top: 14px;
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--navy);
  background: transparent;
  border: 1px solid var(--contact-rule-dark);
  cursor: pointer;
  transition: border-color 240ms var(--ease), color 240ms var(--ease), transform 240ms var(--ease);
}

.page-contact .copy-btn:hover {
  border-color: var(--clay);
  color: var(--clay);
  transform: translateY(-2px);
}

.page-contact .copy-btn:focus-visible {
  outline: 2px solid var(--clay);
  outline-offset: 2px;
}

.page-contact .copy-status {
  display: inline-block;
  margin-left: 10px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--clay);
}

.page-contact .copy-status:empty {
  display: none;
}

.page-contact .rail-toc {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--contact-rule);
}

.page-contact .rail-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .rail-toc-link {
  display: block;
  padding: 8px 0 8px 12px;
  border-left: 2px solid transparent;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--stone);
  text-decoration: none;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-contact .rail-toc-link:hover,
.page-contact .rail-toc-link.is-active {
  color: var(--clay);
  border-left-color: var(--clay);
}

.page-contact .rail-toc-link:focus-visible {
  outline: 2px solid var(--clay);
  outline-offset: 2px;
}

@media (min-width: 1200px) {
  .page-contact .rail-inner {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    max-height: calc(100vh - var(--header-h) - 56px);
    overflow-y: auto;
    scrollbar-width: thin;
    padding-right: 6px;
  }
}

/* ---------- 右侧流程区 ---------- */
.page-contact .flow-section {
  margin-bottom: clamp(64px, 8vw, 104px);
}

.page-contact .flow-section:last-child {
  margin-bottom: 0;
}

.page-contact .flow-section > .label {
  margin: 0 0 14px;
  color: var(--moss);
}

.page-contact .flow-section .section-title {
  margin: 0 0 20px;
  max-width: 26ch;
  color: var(--navy);
}

.page-contact .flow-lede {
  max-width: 62ch;
  margin: 0 0 30px;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--stone);
}

.page-contact .flow-note {
  max-width: 62ch;
  margin: 28px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--moss);
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--stone);
}

/* ---------- 提交要点 ---------- */
.page-contact .req-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: 1px solid var(--contact-rule);
}

.page-contact .req-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--contact-rule);
}

.page-contact .req-key {
  margin: 0 0 6px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--navy);
}

.page-contact .req-desc {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--stone);
}

@media (min-width: 640px) {
  .page-contact .req-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 3vw, 44px);
  }
}

/* ---------- 流程配图 ---------- */
.page-contact .flow-figure {
  margin: clamp(30px, 4vw, 44px) 0;
  overflow: hidden;
  border: 1px solid var(--contact-rule);
  background: var(--navy);
  aspect-ratio: 8 / 5;
}

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

/* ---------- 三步流程 ---------- */
.page-contact .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .step-item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 14px;
  padding: 22px 0;
  border-top: 1px solid var(--contact-rule);
}

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

.page-contact .step-num {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  line-height: 1.3;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--clay);
}

.page-contact .step-title {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
}

.page-contact .step-desc {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--stone);
}

/* ---------- 合作询问要点 ---------- */
.page-contact .brief-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--contact-rule);
}

.page-contact .brief-list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--contact-rule);
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--stone);
}

.page-contact .brief-key {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--moss);
}

@media (min-width: 660px) {
  .page-contact .brief-list li {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 22px;
  }
}

/* ---------- 响应节奏面板 ---------- */
.page-contact .flow-section--panel {
  padding: clamp(28px, 4vw, 46px);
  background: var(--shale);
  border: 1px solid var(--contact-rule);
}

.page-contact .flow-section--panel .flow-lede {
  margin-bottom: 24px;
}

.page-contact .pace-list {
  margin: 0;
}

.page-contact .pace-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 0;
  border-top: 1px solid var(--contact-rule-dark);
}

.page-contact .pace-row:last-child {
  border-bottom: 1px solid var(--contact-rule-dark);
}

.page-contact .pace-term {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--navy);
}

.page-contact .pace-desc {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--stone);
}

@media (min-width: 700px) {
  .page-contact .pace-row {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 26px;
    align-items: baseline;
  }
}

/* ---------- 结尾入口行 ---------- */
.page-contact .tail-links {
  max-width: 62ch;
  margin: clamp(28px, 4vw, 40px) 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--contact-rule);
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--stone);
}
<<<END>>>