.page-contact {
  --contact-narrow: 760px;
  --contact-focus: #0E6B60;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: 28px;
}

.page-contact .contact-hero__frame {
  padding: clamp(24px, 4.6vw, 58px) clamp(20px, 4vw, 56px) clamp(28px, 4vw, 52px);
}

.page-contact .contact-hero__index {
  color: var(--tide);
  margin: 0 0 14px;
}

.page-contact .contact-hero__title {
  font-size: clamp(34px, 7.4vw, 88px);
  font-weight: 250;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 0 0 clamp(18px, 2.4vw, 28px);
}

.page-contact .contact-hero__lede {
  max-width: 46ch;
  color: var(--mist);
  margin: 0;
}

.page-contact .contact-hero__meta {
  list-style: none;
  margin: clamp(24px, 3vw, 40px) 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  font-size: 13px;
  color: var(--mist);
}

.page-contact .contact-hero__meta .mono {
  color: var(--archive);
  font-size: 12px;
  letter-spacing: 0.14em;
  margin-right: 8px;
}

/* ---------- 渠道 + 模板 双栏对撞 ---------- */
.page-contact .contact-split {
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-contact .contact-channels__intro,
.page-contact .contact-flow__intro,
.page-contact .contact-records__intro {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--tide);
}

.page-contact .channel-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .channel-card {
  padding: 20px 20px 22px;
  display: grid;
  gap: 10px;
  transition: transform 180ms var(--ease), border-color 180ms var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-2px);
  border-color: var(--orange);
}

.page-contact .channel-card:focus-within {
  border-color: var(--cyan);
}

.page-contact .channel-card__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(17px, 3.6vw, 22px);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--orange);
  margin: 0;
  word-break: break-all;
}

.page-contact .channel-card__value--plain {
  font-size: clamp(15px, 2.8vw, 17px);
  font-weight: 500;
  color: var(--paper);
  letter-spacing: 0.01em;
  word-break: break-word;
}

.page-contact .channel-card__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .channel-card__copy {
  justify-self: start;
  margin-top: 2px;
  padding: 8px 18px;
  font-size: 13px;
}

.page-contact .channel-card__copy:focus-visible,
.page-contact .template-card__copy:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .channel-card__map {
  margin: 8px 0 0;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--line);
}

/* 实色纸面模板卡 */
.page-contact .template-card {
  padding: clamp(22px, 3vw, 36px);
  display: grid;
  gap: 14px;
  position: relative;
  overflow: hidden;
}

.page-contact .template-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 88px;
  height: 4px;
  background: var(--orange);
}

.page-contact .template-card .card__index {
  color: var(--line);
}

.page-contact .template-card__title {
  color: var(--abyss);
  font-size: clamp(20px, 3.2vw, 26px);
  line-height: 1.3;
  margin: 0;
}

.page-contact .template-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #2E4766;
}

.page-contact .template-field {
  width: 100%;
  min-height: 216px;
  padding: 16px 18px;
  border: 1px solid rgba(10, 23, 48, 0.18);
  border-radius: var(--r-sm);
  background: #E4ECF6;
  color: var(--deepsea);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.95;
  letter-spacing: 0.01em;
  resize: vertical;
}

.page-contact .template-field:focus-visible {
  outline: 2px solid var(--contact-focus);
  outline-offset: 2px;
}

.page-contact .template-card__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
}

.page-contact .template-card__hint {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: #4A6383;
}

/* ---------- 邮件流程 ---------- */
.page-contact .contact-split--flow {
  align-items: start;
}

.page-contact .contact-flow__figure {
  margin: 0 0 clamp(22px, 3vw, 32px);
}

.page-contact .flow-track {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr;
}

.page-contact .flow-node {
  padding: 20px 0 22px;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 6px 14px;
  align-items: baseline;
}

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

.page-contact .flow-node__idx {
  grid-column: 1;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .flow-node__title {
  grid-column: 2;
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .flow-node__text {
  grid-column: 2;
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .contact-panel {
  margin-top: clamp(24px, 3vw, 34px);
}

.page-contact .contact-panel__title {
  font-size: 16px;
  color: var(--mist);
  margin: 0;
}

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

.page-contact .contact-panel__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .contact-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 10px;
  height: 1px;
  background: var(--alert);
}

/* ---------- 数据更正 ---------- */
.page-contact .contact-correct .narrow-col {
  max-width: var(--contact-narrow);
}

.page-contact .contact-correct__lede {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .contact-correct__note {
  margin: 20px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--archive);
}

.page-contact .step-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .step-item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 6px 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .step-item__no {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-contact .step-item__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .step-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 主体与备案 ---------- */
.page-contact .record-list {
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-contact .record-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .record-row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--archive);
}

.page-contact .record-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
  word-break: break-word;
}

.page-contact .record-row dd.mono {
  color: var(--mist);
  letter-spacing: 0.02em;
}

.page-contact .record-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--archive);
}

/* ---------- 协作接洽 ---------- */
.page-contact .contact-split--collab {
  align-items: start;
}

.page-contact .contact-split--collab .prose + .prose {
  margin-top: 14px;
}

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

.page-contact .collab-stat {
  display: grid;
  grid-template-columns: 64px 1fr;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(16, 35, 63, 0.55);
}

.page-contact .collab-stat__num {
  font-size: 32px;
  font-weight: 600;
  line-height: 1;
  color: var(--orange);
}

.page-contact .collab-stat__label {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 常见入口 ---------- */
.page-contact .more-links {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .more-links li {
  border-bottom: 1px solid var(--line);
}

.page-contact .more-links a {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 20px;
  padding: 16px 6px;
  color: var(--mist);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.7;
  transition: color 160ms var(--ease), padding-left 160ms var(--ease);
}

.page-contact .more-links a:hover {
  color: var(--orange);
  padding-left: 14px;
}

.page-contact .more-links a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .more-links .mono {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--tide);
}

/* ---------- 响应式 ---------- */
@media (min-width: 860px) {
  .page-contact .flow-track {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .flow-node {
    padding: 24px 24px 28px 0;
    border-bottom: none;
    align-items: start;
  }

  .page-contact .flow-node + .flow-node {
    border-left: 1px solid var(--line);
    padding-left: 24px;
  }

  .page-contact .record-row {
    grid-template-columns: minmax(128px, 168px) 1fr;
    gap: 12px 24px;
    align-items: baseline;
  }
}

@media (max-width: 899px) {
  .page-contact .contact-split > [class*="span-"] {
    grid-column: 1 / -1;
  }

  .page-contact .contact-hero__meta {
    gap: 8px 20px;
    font-size: 12.5px;
  }

  .page-contact .contact-hero__meta li {
    flex: 1 1 100%;
  }

  .page-contact .collab-stat__num {
    font-size: 26px;
  }
}

@media (min-width: 900px) {
  .page-contact .more-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 48px;
  }

  .page-contact .more-links li:nth-last-child(-n + 1) {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .more-links a {
    transition: none;
  }

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