.page-contact {
  --pc-soft: rgba(31, 58, 61, 0.76);
  --pc-hair: rgba(201, 162, 39, 0.42);
  --pc-letter: #FBF7EE;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  padding-bottom: 88px;
  overflow-x: hidden;
}

.page-contact .wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
  box-sizing: border-box;
}

/* 面包屑 */
.page-contact .breadcrumb {
  padding: 22px 0 0;
}

.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ochre);
}

.page-contact .breadcrumb-list li + li::before {
  content: "／";
  margin: 0 8px;
  color: rgba(169, 100, 46, 0.5);
}

.page-contact .breadcrumb-list a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-contact .breadcrumb-list a:hover,
.page-contact .breadcrumb-list a:focus-visible {
  color: var(--lacquer);
  border-bottom-color: var(--gold);
}

/* 信笺首屏 */
.page-contact .letterhead {
  padding-top: 34px;
}

.page-contact .letterhead-grid {
  display: grid;
  gap: 40px;
}

.page-contact .letterhead-copy .mono-label {
  color: var(--ochre);
  margin: 0;
}

.page-contact .h-display {
  font-family: var(--font-display);
  font-size: clamp(29px, 7.4vw, 54px);
  line-height: 1.28;
  letter-spacing: 0.06em;
  margin: 14px 0 20px;
  color: var(--ink);
}

.page-contact .letterhead-lead {
  font-size: 16px;
  line-height: 1.85;
  color: var(--pc-soft);
  margin: 0 0 28px;
  max-width: 34em;
}

.page-contact .letterhead-paths {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  border-top: var(--line-ink);
}

.page-contact .letterhead-paths li {
  border-bottom: var(--line-ink);
}

.page-contact .letterhead-paths a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 2px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.16s var(--ease), padding-left 0.16s var(--ease);
}

.page-contact .letterhead-paths .mono-label {
  color: var(--cinnabar);
  flex: none;
}

.page-contact .letterhead-paths a:hover,
.page-contact .letterhead-paths a:focus-visible {
  color: var(--lacquer);
  padding-left: 10px;
}

.page-contact .letterhead-visual {
  position: relative;
  padding-bottom: 34px;
}

.page-contact .letterhead-visual .img-frame {
  border: var(--line-gold);
  background: var(--paper-2);
  overflow: hidden;
}

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

.page-contact .seal {
  position: absolute;
  right: 6px;
  bottom: 0;
  width: 88px;
  height: 88px;
  display: grid;
  place-items: center;
  color: var(--cinnabar);
  background: var(--pc-letter);
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgba(183, 40, 46, 0.28), 0 10px 24px rgba(124, 26, 31, 0.14);
  transition: transform 0.32s var(--ease);
}

.page-contact .seal svg {
  width: 76%;
  height: 76%;
  display: block;
  font-family: var(--font-display);
}

.page-contact .seal:hover {
  transform: translateY(-4px) rotate(-3deg);
}

/* 三栏通道 */
.page-contact .channels {
  padding-top: 84px;
}

.page-contact .section-head {
  max-width: 40em;
}

.page-contact .section-head .mono-label {
  color: var(--ochre);
  margin: 0;
}

.page-contact .h-section {
  font-family: var(--font-display);
  font-size: clamp(23px, 5.2vw, 36px);
  line-height: 1.32;
  letter-spacing: 0.06em;
  margin: 12px 0 14px;
  color: var(--ink);
}

.page-contact .h-sub {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--pc-soft);
  margin: 0;
}

.page-contact .channel-grid {
  display: grid;
  gap: 22px;
  margin-top: 36px;
}

.page-contact .channel {
  position: relative;
  background: var(--paper-2);
  border: var(--line-gold);
  border-top: 3px solid var(--cinnabar);
  padding: 26px 20px 28px;
  transition: border-color 0.16s var(--ease), background-color 0.16s var(--ease);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  border-color: var(--gold);
  background: var(--pc-letter);
}

.page-contact .channel-label {
  color: var(--ochre);
  margin: 0 0 12px;
}

.page-contact .channel-title {
  font-family: var(--font-display);
  font-size: 23px;
  letter-spacing: 0.07em;
  line-height: 1.35;
  margin: 0 0 16px;
  color: var(--lacquer);
}

.page-contact .channel p {
  font-size: 15px;
  line-height: 1.85;
  margin: 0 0 14px;
  color: var(--ink);
}

.page-contact .channel-value {
  margin-bottom: 16px;
}

.page-contact .channel-strong {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  line-height: 1.7;
  color: var(--ink);
  background: var(--pc-letter);
  border-bottom: 2px solid var(--gold);
  padding: 4px 8px;
  word-break: break-word;
  transition: background-color 0.16s var(--ease);
}

.page-contact .channel:hover .channel-strong {
  background: #fff;
}

.page-contact .channel-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 16px 0 0;
  border-top: var(--line-ink);
  display: grid;
  gap: 10px;
}

.page-contact .channel-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--pc-soft);
}

.page-contact .channel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border: 1px solid var(--gold);
  border-radius: 50%;
}

.page-contact .channel-figure {
  margin-top: 22px;
  border: var(--line-gold);
  background: var(--paper);
  overflow: hidden;
}

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

/* 合作 */
.page-contact .coop {
  margin-top: 88px;
  padding: 56px 0;
  background: var(--lacquer);
  color: var(--paper);
}

.page-contact .coop-grid {
  display: grid;
  gap: 36px;
}

.page-contact .coop-copy .mono-label {
  color: var(--gold-light);
  margin: 0;
}

.page-contact .coop .h-section {
  color: var(--paper);
}

.page-contact .coop-copy > p {
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(247, 241, 230, 0.84);
  margin: 0 0 22px;
}

.page-contact .coop-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(232, 206, 134, 0.28);
}

.page-contact .coop-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  background: var(--lacquer);
  padding: 13px 2px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .coop-list .mono-label {
  flex: none;
  color: var(--gold);
}

.page-contact .coop-foot {
  font-size: 14px;
  line-height: 1.85;
  color: rgba(232, 206, 134, 0.92);
  margin: 0;
}

.page-contact .coop-note {
  background: rgba(247, 241, 230, 0.06);
  border: 1px solid rgba(232, 206, 134, 0.4);
  padding: 22px 20px;
  color: var(--paper);
}

.page-contact .coop-note .mono-label {
  color: var(--gold-light);
  margin: 0 0 16px;
}

.page-contact .coop-note dl {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-contact .coop-note dl > div {
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(232, 206, 134, 0.24);
}

.page-contact .coop-note dl > div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .coop-note dt {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(247, 241, 230, 0.74);
}

.page-contact .coop-note dd {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: 0.03em;
  color: var(--gold-light);
}

.page-contact .coop-note-foot {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(232, 206, 134, 0.24);
  font-size: 13px;
  line-height: 1.8;
  color: rgba(247, 241, 230, 0.78);
}

/* 处理节奏 */
.page-contact .rhythm {
  padding-top: 88px;
}

.page-contact .rhythm-track {
  list-style: none;
  margin: 40px 0 0;
  padding: 0 0 0 24px;
  display: grid;
  gap: 0;
  border-left: 2px solid var(--pc-hair);
}

.page-contact .rhythm-step {
  position: relative;
  padding: 0 0 30px;
}

.page-contact .rhythm-step:last-child {
  padding-bottom: 0;
}

.page-contact .rhythm-step::before {
  content: "";
  position: absolute;
  left: -32px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--cinnabar);
  transition: background-color 0.16s var(--ease);
}

.page-contact .rhythm-step:hover::before {
  background: var(--gold-light);
}

.page-contact .rhythm-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ochre);
  display: block;
  margin-bottom: 6px;
}

.page-contact .rhythm-step h3 {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.06em;
  line-height: 1.4;
  margin: 0 0 10px;
  color: var(--lacquer);
}

.page-contact .rhythm-step p {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--pc-soft);
  margin: 0;
}

.page-contact .rhythm-foot {
  margin: 30px 0 0;
  padding: 18px 20px;
  background: var(--paper-2);
  border-left: 3px solid var(--gold);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink);
}

/* 延伸入口 */
.page-contact .more {
  padding-top: 80px;
}

.page-contact .more-title {
  margin: 0 0 22px;
  color: var(--ink);
}

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

.page-contact .more-link {
  display: block;
  padding: 18px 20px;
  background: var(--pc-letter);
  border: var(--line-ink);
  text-decoration: none;
  color: var(--ink);
  transition: border-color 0.16s var(--ease), background-color 0.16s var(--ease);
}

.page-contact .more-link:hover,
.page-contact .more-link:focus-visible {
  border-color: var(--gold);
  background: var(--paper-2);
}

.page-contact .more-lead {
  display: block;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--lacquer);
  margin-bottom: 6px;
}

.page-contact .more-desc {
  display: block;
  font-size: 14px;
  line-height: 1.75;
  color: var(--pc-soft);
}

/* 平板与桌面 */
@media (min-width: 760px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    align-items: start;
  }

  .page-contact .channel:nth-child(2) {
    margin-top: 30px;
  }

  .page-contact .channel:nth-child(3) {
    margin-top: 60px;
  }

  .page-contact .channel {
    padding: 28px 24px 30px;
  }

  .page-contact .more-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 880px) {
  .page-contact {
    padding-bottom: 110px;
  }

  .page-contact .letterhead {
    padding-top: 46px;
  }

  .page-contact .letterhead-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .letterhead-visual {
    padding-bottom: 0;
    margin-top: 8px;
  }

  .page-contact .seal {
    right: -22px;
    bottom: -26px;
    width: 104px;
    height: 104px;
  }

  .page-contact .channels {
    padding-top: 104px;
  }

  .page-contact .coop {
    margin-top: 104px;
    padding: 72px 0;
  }

  .page-contact .coop-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.8fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .rhythm {
    padding-top: 100px;
  }

  .page-contact .rhythm-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 34px;
    padding-left: 0;
    border-left: 0;
    border-top: 2px solid var(--pc-hair);
  }

  .page-contact .rhythm-step {
    padding: 30px 0 0;
  }

  .page-contact .rhythm-step::before {
    left: 0;
    top: -8px;
  }

  .page-contact .more {
    padding-top: 92px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .seal,
  .page-contact .channel,
  .page-contact .channel-strong,
  .page-contact .more-link,
  .page-contact .letterhead-paths a {
    transition: none;
  }
}